/* Syntax // industrial learning workspace */
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.language-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px;padding:0 14px 14px}.language-card{display:grid;grid-template-columns:28px 1fr;align-items:center;gap:2px 7px;min-height:59px;padding:8px;border:1px solid var(--line);border-radius:5px;color:var(--muted);background:var(--raised);text-align:left}.language-card.selected{border-color:rgba(245,158,11,.45);color:var(--ink);background:var(--accent-soft)}.language-mark{grid-row:span 2;display:grid;place-items:center;width:26px;height:26px;border:1px solid var(--line);border-radius:4px;color:var(--accent);font:var(--fs-xs) var(--mono)}.language-card b{font-size:12px}.language-card>span:last-child{overflow:hidden;color:var(--quiet);font-size:12px;text-overflow:ellipsis;white-space:nowrap}.selected-check{display:none}.select-header{padding:14px}.select-header h2{margin:0;font-size:18px}.select-header p{color:var(--muted);font-size:12px}.toast{position:fixed;z-index:50;right:20px;bottom:18px;max-width:min(420px,calc(100vw - 32px));padding:10px 13px;border:1px solid var(--line2);border-radius:5px;color:var(--ink);background:rgba(18,20,26,.96);box-shadow:var(--shadow);font-size:12px;opacity:0;transform:translateY(8px);pointer-events:none;transition:opacity .2s ease,transform .2s ease}.toast.show{opacity:1;transform:translateY(0)}
.auth-modal{width:min(780px,100%);overflow:hidden}.auth-shell{display:grid;grid-template-columns:.85fr 1.15fr;min-height:520px}.auth-story{display:flex;flex-direction:column;justify-content:space-between;padding:24px;border-right:1px solid var(--line);background:radial-gradient(ellipse at 24% 8%,rgba(6,182,212,.08),transparent 20rem),linear-gradient(145deg,#101216,#090a0d)}.auth-story h2{margin:10px 0;font-size:30px;line-height:1.05;letter-spacing:-.06em}.auth-story p,.auth-footnote,.account-hint{color:var(--muted);font-size:12px;line-height:1.6}.auth-facts{display:grid;grid-template-columns:1fr 1fr;gap:8px}.auth-facts span{display:grid;gap:3px;padding:9px;border:1px solid var(--line);border-radius:5px;color:var(--muted);font-size:12px}.auth-facts b{color:var(--ink);font:var(--fs-xs) var(--mono)}.auth-content{position:relative;padding:28px clamp(18px,4vw,40px)}.auth-close{position:absolute;top:12px;right:12px}.auth-content h2{margin:6px 0;font-size:22px;letter-spacing:-.05em}.auth-content>p{color:var(--muted);font-size:12px}.auth-form,.account-form{display:grid;gap:8px;margin-top:16px}.auth-input,.account-form input{width:100%;min-height:38px;padding:0 10px;font-size:12px}.auth-input::placeholder,.account-form input::placeholder{color:var(--quiet)}.auth-input:focus,.account-form input:focus{border-color:rgba(245,158,11,.45)}.auth-submit{width:100%;margin-top:4px}.auth-remember{display:flex;gap:7px;align-items:center;color:var(--muted);font-size:12px}.auth-remember input{accent-color:var(--accent)}.auth-message,.account-status{min-height:18px;color:var(--danger);font-size:12px}.auth-switch{margin-top:8px;color:var(--muted);font-size:12px}.auth-switch button{border:0;color:var(--accent);background:none;font-size:12px}.auth-divider,.account-divider{margin:13px 0;border-top:1px solid var(--line);text-align:center}.auth-divider{color:var(--quiet);font:var(--fs-xs) var(--mono)}.discord-button{width:100%;min-height:36px;border:1px solid var(--line2);border-radius:5px;color:var(--ink);background:var(--raised);font-size:12px}.account-form label{display:grid;gap:5px;color:var(--muted);font-size:12px}.account-actions{display:flex;gap:7px}.account-actions .auth-submit{flex:1}.otp-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:6px}.otp-slot{min-width:0;height:48px;text-align:center;font:600 19px var(--mono)}.auth-link{justify-self:start;padding:3px 0;border:0;color:var(--accent);background:transparent;font-size:12px}
.welcome-stage{min-height:100vh;overflow:hidden;color:var(--ink);background:radial-gradient(ellipse at 75% 13%,rgba(245,158,11,.07),transparent 36rem),var(--canvas)}.welcome-nav{position:sticky;top:0;z-index:8;display:flex;align-items:center;gap:30px;min-height:58px;padding:0 clamp(18px,5vw,70px);border-bottom:1px solid var(--line);background:rgba(8,8,10,.86);backdrop-filter:blur(18px)}.welcome-brand{display:flex;align-items:center;gap:8px;text-decoration:none}.welcome-brand-mark{width:29px;height:29px}.welcome-nav nav{display:flex;gap:17px;margin-right:auto}.welcome-nav nav a,.welcome-login{color:var(--muted);font-size:12px;text-decoration:none}.welcome-nav-actions{display:flex;align-items:center;gap:6px}.welcome-theme,.welcome-login,.welcome-nav-cta{padding:0 10px}.welcome-nav-cta{color:var(--ink)}.welcome-hero{display:grid;grid-template-columns:.85fr 1.15fr;align-items:center;gap:24px;max-width:1360px;min-height:540px;padding:55px clamp(22px,7vw,100px);margin:auto}.welcome-copy{position:relative;z-index:1}.welcome-copy h1{margin:10px 0;font-size:clamp(42px,6vw,76px);line-height:.99;letter-spacing:-.075em}.welcome-intro{max-width:440px;font-size:13px}.welcome-hero-actions{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0}.welcome-primary{min-height:42px}.welcome-secondary{min-height:40px;padding:0 11px;border:1px solid var(--line);border-radius:5px;color:var(--muted);background:transparent;font-size:12px}.welcome-proof{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:12px}.welcome-proof b{color:var(--ink)}.proof-avatars{display:flex}.proof-avatars i{display:grid;place-items:center;width:25px;height:25px;margin-right:-5px;border:1px solid var(--line);border-radius:5px;color:var(--accent);background:var(--raised);font:12px var(--mono);font-style:normal}
.welcome-visual{position:relative;display:grid;place-items:center;min-height:390px}.welcome-visual-halo{position:absolute;width:min(72%,440px);aspect-ratio:1;border:1px solid rgba(255,255,255,.1);border-radius:50%;background:radial-gradient(circle,rgba(6,182,212,.04),transparent 66%)}.welcome-links{position:absolute;inset:5%;width:90%;height:90%;fill:var(--accent);stroke:rgba(255,255,255,.16);stroke-width:1}.welcome-code-card{position:relative;z-index:1;width:min(400px,80%);padding:15px;border:1px solid var(--line2);border-radius:7px;background:rgba(13,14,18,.94);box-shadow:0 22px 65px rgba(0,0,0,.42),inset 0 1px 0 rgba(255,255,255,.09);animation:panel-drift 7s ease-in-out infinite}.welcome-code-top,.welcome-code-meta,.welcome-result,.welcome-code-foot{display:flex;align-items:center;justify-content:space-between;gap:8px}.welcome-code-top{padding-bottom:9px;border-bottom:1px solid var(--line);color:var(--muted);font:var(--fs-xs) var(--mono)}.welcome-code-top>span{display:flex;gap:4px}.welcome-code-top i{width:5px;height:5px;border-radius:50%;background:#555a63}.welcome-code-top button{border:0;color:var(--muted);background:transparent}.welcome-code-meta,.welcome-code-foot{margin:9px 0;color:var(--quiet);font:var(--fs-xs) var(--mono)}.run-status{color:var(--signal)}.welcome-code{min-height:70px;margin:10px 0;padding:11px;border:1px solid var(--line);border-radius:4px;color:#d7d9df;background:#08090b;font-size:12px;line-height:1.7}.welcome-result{padding:8px;border:1px solid rgba(16,185,129,.18);border-radius:4px;color:var(--signal);background:rgba(16,185,129,.04);font:var(--fs-xs) var(--mono)}.welcome-result b{color:var(--ink);font-size:12px}.welcome-node{position:absolute;z-index:2;padding:7px 9px;border:1px solid var(--line2);border-radius:5px;color:var(--muted);background:var(--panel);font:var(--fs-xs) var(--mono)}.welcome-node span{color:var(--accent)}.node-python{top:12%;left:3%}.node-js{top:15%;right:2%}.node-web{bottom:15%;left:1%}.node-rust{right:0;bottom:17%}.welcome-agent{position:absolute;z-index:3;right:10%;bottom:6%;display:flex;align-items:center;gap:9px;padding:8px 10px;border:1px solid var(--line2);border-radius:5px;background:var(--panel);box-shadow:var(--shadow)}.welcome-agent b,.welcome-agent small{display:block;font-size:12px}.welcome-agent small{color:var(--muted)}.agent-spark{display:grid;place-items:center;width:22px;height:22px;border:1px solid rgba(6,182,212,.28);border-radius:4px;color:var(--cyan);font:var(--fs-xs) var(--mono)}.agent-arrow{color:var(--quiet)}
.welcome-language-strip,.welcome-method,.welcome-courses{max-width:1360px;padding:26px clamp(22px,7vw,100px);margin:auto;border-top:1px solid var(--line)}.strip-label{margin-bottom:10px;color:var(--muted);font:12px var(--mono);letter-spacing:.1em}.strip-live{display:inline-block;margin-right:7px;background:var(--cyan)}.welcome-marquee{overflow:auto;scrollbar-width:thin}.welcome-marquee-track{display:flex;gap:6px;width:max-content;animation:none}.ticker-language{display:flex;align-items:center;gap:6px;padding:6px 9px;border:1px solid var(--line);border-radius:4px;color:var(--muted);font:var(--fs-xs) var(--mono)}.ticker-language i{color:var(--accent);font-style:normal}.welcome-section-head{display:flex;justify-content:space-between;align-items:end;gap:18px;margin-bottom:18px}.welcome-section-head h2,.coach-copy h2{margin:5px 0;font-size:clamp(25px,4vw,42px);line-height:1.06;letter-spacing:-.06em}.welcome-section-head h2 span,.coach-copy h2 span{color:var(--accent)}.welcome-section-head>p{max-width:400px}.method-grid,.welcome-course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}.method-card,.welcome-course-card{position:relative;padding:14px;border:1px solid var(--line);border-radius:7px;background:linear-gradient(145deg,rgba(255,255,255,.025),transparent 70%),var(--panel)}.method-number{color:var(--accent);font:var(--fs-xs) var(--mono)}.method-illustration{display:flex;align-items:center;gap:6px;min-height:62px}.mini-code-line{width:45px;height:5px;border-radius:2px;background:var(--accent)}.mint-line{width:66px;background:var(--signal)}.short-line{width:28px;background:var(--cyan)}.try-chip,.build-illustration span{padding:5px 7px;border:1px solid var(--line);border-radius:4px;color:var(--muted);font:var(--fs-xs) var(--mono)}.try-chip.selected{color:var(--accent);border-color:rgba(245,158,11,.3)}.method-card h3{font-size:12px}.method-card p,.welcome-course-card>p{color:var(--muted);font-size:12px;line-height:1.6}.welcome-course-grid{grid-template-columns:repeat(4,1fr)}.welcome-course-card{min-height:170px}.course-card-top{display:flex;align-items:center;gap:7px}.course-mark{display:grid;place-items:center;width:26px;height:26px;border:1px solid var(--line);border-radius:4px;color:var(--accent);font:var(--fs-xs) var(--mono)}.course-level{margin-left:auto;font-size:12px}.course-arrow{color:var(--quiet)}.welcome-course-card h3{margin:12px 0 5px;font-size:13px}.welcome-course-card>p{min-height:42px}.course-meta{display:flex;justify-content:space-between;color:var(--quiet);font:var(--fs-xs) var(--mono)}.welcome-course-card button,.welcome-courses-foot button{padding:0;margin-top:8px;border:0;color:var(--accent);background:transparent;font-size:12px}.welcome-courses-foot{display:flex;justify-content:space-between;gap:10px;margin-top:12px;color:var(--muted);font-size:12px}
.welcome-coach{display:grid;grid-template-columns:1fr 1fr;gap:24px;padding:clamp(22px,5vw,54px) clamp(22px,7vw,100px);border-block:1px solid var(--line);background:linear-gradient(110deg,rgba(6,182,212,.045),transparent 70%),var(--panel)}.coach-copy>p,.coach-copy li{color:var(--muted);font-size:12px}.coach-copy ul{display:grid;gap:7px;padding:0;list-style:none}.coach-copy li i{margin-right:6px;color:var(--signal);font-style:normal}.coach-open{min-height:34px;padding:0 10px;border:1px solid var(--line2);border-radius:5px;color:var(--ink);background:var(--raised);font-size:12px}.coach-demo{padding:13px;border:1px solid var(--line2);border-radius:7px;background:rgba(8,9,11,.7)}.coach-demo-top{display:flex;align-items:center;gap:8px;padding-bottom:9px;border-bottom:1px solid var(--line)}.coach-avatar{display:grid;place-items:center;width:26px;height:26px;border:1px solid rgba(6,182,212,.3);border-radius:4px;color:var(--cyan);font:var(--fs-xs) var(--mono)}.coach-demo-top b,.coach-demo-top small{display:block;font-size:12px}.coach-demo-top small,.coach-demo-foot{color:var(--muted);font-size:12px}.coach-ready{margin-left:auto;color:var(--signal);font:var(--fs-xs) var(--mono)}.coach-demo-chat{display:grid;gap:6px;min-height:85px;padding:10px 0}.coach-message{padding:8px;border:1px solid var(--line);border-radius:4px;color:var(--muted);background:var(--raised);font-size:12px}.user-message{justify-self:end;color:var(--ink)}.coach-prompts{display:flex;flex-wrap:wrap;gap:4px}.coach-prompts button{padding:5px 7px;border:1px solid var(--line);border-radius:4px;color:var(--muted);background:transparent;font-size:12px}.coach-demo-form{display:flex;gap:5px;margin-top:9px}.coach-demo-form input{flex:1;min-width:0;padding:7px;border:1px solid var(--line);border-radius:4px;color:var(--ink);background:var(--canvas);font-size:12px}.coach-demo-form button{width:28px;border:1px solid var(--line);border-radius:4px;color:var(--ink);background:var(--raised)}.coach-demo-foot{margin-top:7px}.welcome-footer{display:flex;justify-content:space-between;gap:10px;padding:14px clamp(22px,7vw,100px);color:var(--muted);font-size:12px}.welcome-footer button{border:0;color:var(--accent);background:transparent;font-size:12px}
.mobile-tutor-backdrop,.mobile-tutor-toggle{display:none}.cursor-glow{position:fixed;z-index:1;top:0;left:0;width:230px;height:230px;border-radius:50%;pointer-events:none;opacity:.12;background:radial-gradient(circle,rgba(245,158,11,.13),transparent 70%);transform:translate(calc(var(--cursor-x,-400px) - 50%),calc(var(--cursor-y,-400px) - 50%))}@keyframes orbit-turn{to{transform:rotate(360deg)}}@keyframes panel-drift{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}@keyframes page-in{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}@keyframes fade-in{from{opacity:0;transform:translateY(3px)}to{opacity:1;transform:translateY(0)}}@keyframes blink-dot{to{opacity:.3;transform:translateY(-2px)}}
@media(max-width:1200px){.app{grid-template-columns:210px minmax(420px,1fr)}.rightbar{position:fixed;z-index:15;top:8px;right:8px;bottom:8px;width:min(330px,calc(100vw - 20px));height:auto;border:1px solid var(--line2);border-radius:8px;box-shadow:var(--shadow);transform:translateX(calc(100% + 16px));transition:transform .25s ease}.rightbar.tutor-open{transform:translateX(0)}.tutor-close{display:grid;place-items:center}.mobile-tutor-toggle{position:fixed;z-index:8;right:14px;bottom:14px;display:flex;align-items:center;gap:6px;min-height:36px;padding:0 10px;border:1px solid var(--line2);border-radius:5px;color:var(--ink);background:var(--raised);box-shadow:var(--shadow);font-size:12px}.mobile-tutor-toggle span{color:var(--cyan);font:var(--fs-xs) var(--mono)}.mobile-tutor-backdrop.open{position:fixed;z-index:14;inset:0;display:block;background:rgba(0,0,0,.5)}}
@media(max-width:760px){.app{display:block}.sidebar{position:fixed;z-index:16;top:8px;bottom:8px;left:8px;width:min(260px,calc(100vw - 35px));height:auto;border:1px solid var(--line2);border-radius:8px;box-shadow:var(--shadow);transform:translateX(calc(-100% - 16px));transition:transform .22s ease}.sidebar.mobile-open{transform:translateX(0)}.main{padding:14px 13px 64px}.topbar{margin-bottom:16px}.mobile-menu{display:grid}.breadcrumb{font-size:12px}.top-actions{gap:4px}.top-actions>.icon-button:nth-child(3){display:none}.lang-select{max-width:95px}.lang-select #selectedLanguage{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.hero{min-height:175px}.hero-content{max-width:82%}.hero-art{right:-50px;opacity:.44}.hero h2{font-size:21px}.stats{gap:5px}.stat-card{align-items:flex-start;flex-direction:column;gap:5px;padding:8px}.stat-icon{width:25px;height:25px}.stat-copy b{font-size:13px}.path-controls{grid-template-columns:1fr 1fr}.rank-switcher{grid-column:1/-1}.roadmap{grid-template-columns:1fr}.stage{grid-template-columns:34px minmax(0,1fr) 76px}.welcome-nav{gap:10px;padding:0 12px}.welcome-nav nav{display:none}.welcome-nav-actions{margin-left:auto}.welcome-nav-cta{max-width:112px}.welcome-hero{grid-template-columns:1fr;gap:0;padding:42px 19px 20px}.welcome-copy h1{font-size:clamp(44px,13vw,66px)}.welcome-visual{min-height:320px}.welcome-code-card{width:min(370px,83%)}.welcome-language-strip,.welcome-method,.welcome-courses{padding:22px 16px}.welcome-section-head{align-items:flex-start;flex-direction:column;gap:4px}.method-grid,.welcome-course-grid{grid-template-columns:1fr 1fr}.welcome-course-card:last-child{display:none}.welcome-coach{grid-template-columns:1fr;padding:24px 16px}.welcome-footer{padding:12px 16px}.welcome-footer>span{display:none}.lab-grid,.leaderboard-layout{grid-template-columns:1fr}.page-grid,.badge-grid{grid-template-columns:1fr}.note-workspace{grid-template-columns:1fr}.notes-list{max-height:200px;overflow:auto}.auth-shell{grid-template-columns:1fr}.auth-story{display:none}.auth-content{padding:25px 17px}.modal-backdrop{padding:8px}.modal{max-height:96vh}.modal-body{padding:12px}.language-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.pattern-grid{grid-template-columns:1fr}.welcome-proof{font-size:12px}}
@media(max-width:420px){.welcome-theme{display:none}.stats{grid-template-columns:repeat(3,1fr)}.stat-card{padding:6px}.top-actions #searchButton{display:none}.welcome-primary{padding:0 9px;font-size:12px}.welcome-secondary{padding:0 8px;font-size:12px}.welcome-node{padding:6px;font-size:12px}.welcome-agent{right:3%}.method-grid{grid-template-columns:1fr}.welcome-course-grid{grid-template-columns:1fr}.welcome-course-card:last-child{display:block}.podium-place{font-size:12px}.path-controls{grid-template-columns:1fr}.rank-switcher{grid-column:auto}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}
.exam-progress{height:3px;margin-bottom:10px;background:var(--raised2)}.exam-progress i{display:block;height:100%;background:var(--accent);transition:width .25s ease}.checkpoint-meta{display:flex;justify-content:space-between;margin:8px 0}.exam-question{margin:10px 0;font-size:18px;letter-spacing:-.04em}.checkpoint-prompt{color:var(--muted);font-size:12px}.exam-options{display:grid;gap:6px}.exam-option{display:grid;grid-template-columns:26px 1fr 16px;align-items:center;gap:8px;min-height:42px;padding:7px;border:1px solid var(--line);border-radius:5px;color:var(--muted);background:var(--raised);text-align:left;font-size:12px}.exam-option.chosen{border-color:rgba(245,158,11,.38);color:var(--ink);background:var(--accent-soft)}.exam-option .letter{display:grid;place-items:center;width:22px;height:22px;border:1px solid var(--line);border-radius:4px;color:var(--quiet);font:var(--fs-xs) var(--mono)}.exam-option>i{color:var(--signal);font-style:normal}.exam-result{display:grid;justify-items:center;padding:8px;text-align:center}.result-ring{display:grid;place-items:center;width:76px;height:76px;margin:8px;border:3px solid var(--signal);border-radius:50%;font:600 16px var(--mono)}.exam-result h2{margin:7px 0;font-size:18px}.exam-result p{max-width:500px;color:var(--muted);font-size:12px}.answer-review{margin-top:9px;border:1px solid var(--line);border-radius:5px}.answer-review summary{padding:9px;color:var(--ink);font-size:12px;cursor:pointer}.answer-review summary span{float:right;color:var(--muted)}.review-list{display:grid;gap:5px;padding:8px}.review-item{display:grid;grid-template-columns:24px 1fr 16px;gap:7px;padding:8px;border:1px solid var(--line);border-radius:4px}.review-number{color:var(--accent);font:var(--fs-xs) var(--mono)}.review-item b,.review-item p{font-size:12px}.review-item p{color:var(--muted)}.review-item>i{color:var(--signal);font-style:normal}


/* Account gate and accessible entry states */
html{color-scheme:dark}html:not(.syntax-authenticated) #appShell{visibility:hidden}html.syntax-authenticated #appShell{visibility:visible}.skip-link{position:fixed;z-index:120;top:8px;left:8px;padding:9px 12px;transform:translateY(-150%);border:1px solid var(--line2);border-radius:5px;color:var(--ink);background:var(--raised);font:var(--fs-xs) var(--mono)}.skip-link:focus{transform:translateY(0)}.welcome-theme svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.7}.welcome-theme{display:grid;place-items:center;min-width:34px;min-height:32px;border:1px solid var(--line);border-radius:5px;color:var(--muted);background:var(--raised)}
/* Neutralize the remaining starter icon color hooks */
.stat-icon{display:grid;place-items:center;width:34px;height:34px;border:1px solid var(--line2);border-radius:5px;color:var(--ink);background:var(--raised);font:var(--fs-xs) var(--mono)}.trace-line-a{background:var(--accent)}.welcome-agent,.coach-avatar,.agent-spark{color:var(--ink)}.puzzle-card.is-celebrating .puzzle-code span{animation:trace-confirm .24s ease both}.puzzle-card.is-celebrating .puzzle-code span:nth-child(2){animation-delay:.08s}.puzzle-card.is-celebrating .puzzle-code span:nth-child(3){animation-delay:.16s}@keyframes trace-confirm{from{opacity:.48;transform:translateX(0)}to{opacity:1;transform:translateX(4px)}}
/* Five-round learning game */
.sprint-body{padding:18px clamp(16px,3vw,28px) 16px}.sprint-scorebar{position:relative;display:flex;justify-content:space-between;align-items:center;gap:12px;padding-bottom:13px;border-bottom:1px solid var(--line)}.sprint-progress{display:flex;gap:5px}.sprint-progress i{width:20px;height:3px;background:var(--raised2)}.sprint-progress i.current{background:var(--accent)}.sprint-progress i.done{background:var(--signal)}.sprint-metrics{display:flex;gap:12px;color:var(--quiet);font:12px var(--mono);font-variant-numeric:tabular-nums}.sprint-metrics span{display:flex;gap:5px}.sprint-metrics b{color:var(--ink);font-weight:500}.sprint-round-meta{display:flex;gap:10px;margin-top:16px;color:var(--muted);font:12px var(--mono);letter-spacing:.08em}.sprint-title{margin:8px 0 4px;font-size:clamp(19px,4vw,27px);letter-spacing:-.045em;text-wrap:balance}.sprint-question{margin:0 0 13px;color:var(--muted);font-size:12px;line-height:1.65}.sprint-terminal{position:relative;overflow:hidden;border:1px solid var(--line2);border-radius:6px;background:#08080a;box-shadow:inset 0 1px 0 rgba(255,255,255,.07),0 8px 20px rgba(0,0,0,.18)}.sprint-terminal-head,.sprint-terminal-foot{display:flex;justify-content:space-between;gap:8px;padding:8px 10px;color:var(--quiet);font:12px var(--mono);letter-spacing:.08em}.sprint-terminal-head{border-bottom:1px solid var(--line)}.sprint-terminal pre{min-height:52px;max-height:150px;overflow:auto;margin:0;padding:11px 12px;color:var(--ink);font:12px/1.65 var(--mono);white-space:pre-wrap;overflow-wrap:anywhere}.sprint-terminal-foot{border-top:1px solid var(--line)}.sprint-terminal-foot b{color:var(--signal);font-weight:500}.sprint-choices{display:grid;gap:6px;margin-top:11px}.sprint-choice{display:grid;grid-template-columns:27px minmax(0,1fr) 14px;align-items:start;gap:8px;width:100%;min-height:38px;padding:9px;border:1px solid var(--line);border-radius:5px;color:var(--muted);background:var(--raised);text-align:left;font-size:12px;line-height:1.45;overflow-wrap:anywhere;transition:transform .18s ease,border-color .18s ease,color .18s ease,background .18s ease}.sprint-choice:hover:not(:disabled){transform:translateX(2px);border-color:var(--line2);color:var(--ink)}.sprint-choice:disabled{opacity:.72}.sprint-choice.incorrect{border-color:rgba(248,113,113,.36);color:var(--ink);background:rgba(248,113,113,.06)}.sprint-choice.correct{border-color:rgba(16,185,129,.45);color:var(--ink);background:rgba(16,185,129,.08)}.choice-index{color:var(--quiet);font:var(--fs-xs) var(--mono)}.choice-state{width:7px;height:7px;margin-top:3px;border:1px solid var(--line2);border-radius:50%}.sprint-choice.correct .choice-state{border-color:var(--signal);background:var(--signal)}.sprint-hint{margin-top:9px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.sprint-hint summary{padding:8px 1px;color:var(--muted);font:12px var(--mono);cursor:pointer}.sprint-hint p{margin:0 0 9px;color:var(--muted);font-size:12px;line-height:1.6}.sprint-feedback{min-height:18px;margin:9px 0;color:var(--muted);font-size:12px;line-height:1.5}.sprint-feedback.is-correct{color:var(--signal)}.sprint-explanation{padding:9px;border-left:1px solid var(--signal);color:var(--muted);background:rgba(16,185,129,.045);font-size:12px;line-height:1.6}.sprint-actions{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:12px;padding-top:10px;border-top:1px solid var(--line);color:var(--quiet);font:12px var(--mono);letter-spacing:.08em}.sprint-actions .solid-button{min-height:34px}.sprint-result{display:grid;justify-items:center;padding:28px 20px;text-align:center}.sprint-result-mark{display:grid;place-items:center;width:82px;height:82px;margin-bottom:17px;border:1px solid var(--line2);border-radius:7px;color:var(--signal);background:linear-gradient(145deg,var(--raised2),var(--panel));font:12px var(--mono);box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 12px 30px rgba(0,0,0,.3)}.sprint-result h2{margin:7px 0;color:var(--ink);font-size:24px;letter-spacing:-.05em}.sprint-result>p{max-width:430px;margin:0;color:var(--muted);font-size:12px;line-height:1.6}.sprint-result-stats{display:grid;grid-template-columns:repeat(3,minmax(70px,1fr));gap:7px;width:min(100%,420px);margin:17px 0}.sprint-result-stats div{display:grid;gap:4px;padding:10px 6px;border:1px solid var(--line);border-radius:5px;background:var(--raised)}.sprint-result-stats span{color:var(--quiet);font:var(--fs-xs) var(--mono)}.sprint-result-stats b{color:var(--ink);font:600 13px var(--mono);font-variant-numeric:tabular-nums}.sprint-result-note{color:var(--muted);font-size:12px}.leaderboard-profile-title{display:flex;align-items:center;gap:10px;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line)}.leaderboard-profile-title>div{display:grid;gap:3px;min-width:0}.leaderboard-profile-title b{max-width:100%;overflow:hidden;color:var(--ink);font:12px var(--mono);text-overflow:ellipsis;white-space:nowrap}.title-mark{display:grid;place-items:center;width:34px;height:34px;flex:none;border:1px solid var(--line2);border-radius:5px;color:var(--accent);background:var(--raised);font:var(--fs-xs) var(--mono)}.privacy-mark{flex:none;color:var(--quiet);font:var(--fs-xs) var(--mono)}.note-actions .danger-button{min-height:29px}.note-editor-shell{min-width:0}.note-title-input{width:100%;margin:10px 0 0;padding:8px 0;border:0;border-bottom:1px solid var(--line2);color:var(--ink);background:transparent;font-size:18px;letter-spacing:-.035em}.note-editor-shell .danger-button:disabled{opacity:.4}
/* Interaction clarity and small-screen game layout */
button,a,select,input,textarea{-webkit-tap-highlight-color:transparent}select{color:var(--ink);background-color:var(--panel)}.modal{overscroll-behavior:contain}.modal-body{overscroll-behavior:contain}.page-heading h1,.welcome-copy h1,.welcome-section-head h2{text-wrap:balance}.leaderboard-profile-card{box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 12px 32px rgba(0,0,0,.22)}.auth-modal{box-shadow:inset 0 1px 0 rgba(255,255,255,.1),0 28px 80px rgba(0,0,0,.58)}.auth-field input,.account-form input{min-width:0}.otp-slot{font-variant-numeric:tabular-nums}.answer-option,.sprint-choice,.nav-btn,.rank-button,.language-card{touch-action:manipulation}@media(max-width:560px){.sprint-body{padding:14px 12px}.sprint-scorebar{align-items:flex-start;flex-direction:column}.sprint-metrics{width:100%;justify-content:space-between}.sprint-terminal pre{font-size:12px}.sprint-result{padding:22px 12px}.sprint-result-stats{gap:4px}.sprint-result-stats div{padding:8px 3px}.sprint-result-stats b{font-size:12px}.leaderboard-profile-title b{max-width:230px}}
@media(prefers-reduced-motion:reduce){.puzzle-card.is-celebrating .puzzle-code span{animation:none}.sprint-choice:hover:not(:disabled){transform:none}}
.skip-app{display:none}html.syntax-authenticated .skip-app{display:block}html.syntax-authenticated .skip-welcome{display:none}.welcome-theme{display:grid!important}
/* Mission control: make progress and practice read as an actual game loop. */
.quest-hub{position:relative;isolation:isolate;overflow:hidden;padding:16px;background:radial-gradient(ellipse at 100% 0,rgba(6,182,212,.055),transparent 28rem),linear-gradient(155deg,#101116,#0d0e12 55%)}
.quest-hub:after{position:absolute;z-index:-1;inset:0;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:28px 28px;mask-image:linear-gradient(120deg,#000,transparent 72%);content:""}
.quest-hub-head{position:relative;display:flex;align-items:flex-start;justify-content:space-between;gap:14px}.quest-kicker{display:flex;align-items:center;gap:7px;color:var(--signal);font:12px var(--mono);letter-spacing:.11em}.quest-kicker i{width:6px;height:6px;border-radius:50%;background:var(--signal);box-shadow:0 0 10px rgba(16,185,129,.4)}.quest-hub-head h2{margin:7px 0 3px;font-size:17px;letter-spacing:-.04em}.quest-hub-head p{margin:0;color:var(--muted);font-size:12px;line-height:1.55}
.level-orb{display:grid;align-content:center;justify-items:center;gap:3px;min-width:54px;min-height:54px;padding:6px;border:1px solid rgba(245,158,11,.34);border-radius:7px;background:linear-gradient(145deg,rgba(245,158,11,.11),rgba(18,20,26,.82));box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 5px 16px rgba(0,0,0,.22)}.level-orb span{color:var(--muted);font:12px var(--mono);letter-spacing:.1em}.level-orb b{color:var(--accent);font:600 17px var(--mono);font-variant-numeric:tabular-nums}
.level-progress{display:grid;gap:6px;margin:14px 0 11px;padding:9px 10px;border:1px solid var(--line);border-radius:6px;background:rgba(8,8,10,.42)}.level-progress-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;color:var(--muted);font:12px var(--mono);font-variant-numeric:tabular-nums}.level-progress-meta b{color:var(--ink);font-size:12px}.level-progress-meta #xpNext{color:var(--quiet)}.level-track{height:4px;border:1px solid rgba(255,255,255,.04);background:#1b1e25}.level-track i{border-radius:3px;background:linear-gradient(90deg,var(--accent),#f9d58a);box-shadow:0 0 10px rgba(245,158,11,.22)}
.quest-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.quest-card{position:relative;display:flex;min-width:0;min-height:166px;flex-direction:column;overflow:hidden;padding:11px;border:1px solid var(--line);border-radius:7px;background:linear-gradient(150deg,rgba(255,255,255,.035),transparent 48%),rgba(8,9,12,.72);box-shadow:inset 0 1px 0 rgba(255,255,255,.055);transition:transform .2s ease,border-color .2s ease,background .2s ease,box-shadow .2s ease}.quest-card:after{position:absolute;top:0;left:-45%;width:38%;height:1px;background:linear-gradient(90deg,transparent,var(--accent),transparent);opacity:0;content:""}.quest-card:hover{transform:translateY(-2px);border-color:rgba(255,255,255,.16);background:linear-gradient(150deg,rgba(255,255,255,.05),transparent 48%),#0b0c10;box-shadow:0 10px 24px rgba(0,0,0,.2),inset 0 1px 0 rgba(255,255,255,.07)}.quest-card:hover:after{opacity:.85;animation:quest-beam 1.25s ease-out both}.quest-card.is-done{border-color:rgba(16,185,129,.28);background:linear-gradient(145deg,rgba(16,185,129,.065),transparent 60%),#0b0d0f}.quest-card-top{display:flex;align-items:center;justify-content:space-between;gap:7px}.quest-icon{display:grid;place-items:center;width:27px;height:27px;border:1px solid rgba(245,158,11,.23);border-radius:5px;color:var(--accent);background:rgba(245,158,11,.06);font:var(--fs-xs) var(--mono)}.quest-practice .quest-icon{border-color:rgba(6,182,212,.25);color:var(--cyan);background:rgba(6,182,212,.06)}.quest-tutor .quest-icon{border-color:rgba(16,185,129,.25);color:var(--signal);background:rgba(16,185,129,.06)}.quest-reward{color:var(--quiet);font:12px var(--mono);font-variant-numeric:tabular-nums}.quest-card-copy{display:grid;gap:4px;min-height:52px;margin:10px 0 8px}.quest-card-copy b{color:var(--ink);font-size:12px;font-weight:600;letter-spacing:-.02em}.quest-card-copy span{color:var(--muted);font-size:12px;line-height:1.5}.quest-progress{height:2px;overflow:hidden;margin-top:auto;border-radius:2px;background:#20232a}.quest-progress i{display:block;width:0;height:100%;background:var(--accent);transition:width .35s ease}.quest-card.is-done .quest-progress i{width:100%;background:var(--signal)}.quest-card-bottom{display:flex;align-items:center;justify-content:space-between;gap:5px;margin-top:8px}.quest-card-bottom>span{overflow:hidden;color:var(--quiet);font:12px var(--mono);text-overflow:ellipsis;white-space:nowrap}.quest-card.is-done .quest-card-bottom>span{color:var(--signal)}.quest-action{flex:none;min-height:27px;padding:0 8px;border:1px solid var(--line2);border-radius:4px;color:var(--ink);background:var(--raised);font:12px var(--mono);transition:border-color .18s ease,color .18s ease,background .18s ease,transform .18s ease}.quest-action:hover{transform:translateY(-1px);border-color:rgba(245,158,11,.42);color:var(--canvas);background:var(--accent)}.quest-card.is-done .quest-action{border-color:rgba(16,185,129,.22);color:var(--signal);background:rgba(16,185,129,.06)}
.puzzle-card{position:relative;display:grid;grid-template-columns:106px minmax(0,1fr) 44px;align-items:center;gap:13px;overflow:hidden;margin-top:10px;padding:13px;background:radial-gradient(ellipse at 2% 50%,rgba(245,158,11,.075),transparent 20rem),linear-gradient(130deg,#101116,#0b0c10)}.puzzle-art{position:relative;display:grid;place-items:center;min-height:126px;overflow:hidden;border:1px solid var(--line);border-radius:6px;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:14px 14px}.puzzle-orbit{position:absolute;width:84px;height:84px;border:1px solid rgba(245,158,11,.2);border-radius:50%;animation:orbit-turn 24s linear infinite}.puzzle-orbit:before,.puzzle-orbit:after{position:absolute;width:4px;height:4px;border-radius:50%;background:var(--accent);box-shadow:0 0 9px rgba(245,158,11,.45);content:""}.puzzle-orbit:before{top:9px;left:18px}.puzzle-orbit:after{right:7px;bottom:21px;background:var(--cyan)}.puzzle-tile{z-index:1;display:grid;place-items:center;width:48px;height:48px;border:1px solid rgba(255,255,255,.15);border-radius:7px;color:var(--accent);background:linear-gradient(145deg,#1b1d23,#0d0e12);box-shadow:inset 0 1px 0 rgba(255,255,255,.12),0 10px 24px rgba(0,0,0,.38);font:600 18px var(--mono)}.puzzle-star,.puzzle-spark{position:absolute;z-index:2;color:var(--quiet);font:var(--fs-xs) var(--mono)}.puzzle-star{top:9px;left:9px}.puzzle-spark{right:10px;bottom:8px;color:var(--cyan)}.puzzle-content{min-width:0}.puzzle-kicker{color:var(--accent);font:12px var(--mono);letter-spacing:.11em}.puzzle-content h3{margin:5px 0 8px;font-size:13px;letter-spacing:-.025em}.puzzle-code{display:grid;gap:2px;margin:0 0 8px;padding:7px 8px;border:1px solid var(--line);border-radius:5px;color:#d6d8df;background:#08090b;font:12px/1.6 var(--mono);counter-reset:puzzle-line}.puzzle-code span{display:grid;grid-template-columns:25px minmax(0,1fr);gap:6px;white-space:pre-wrap}.puzzle-code span:before{color:var(--quiet);content:counter(puzzle-line,decimal-leading-zero);counter-increment:puzzle-line}.puzzle-code .puzzle-output{color:var(--signal)}.puzzle-answers{display:flex;flex-wrap:wrap;gap:5px}.puzzle-answers button{min-width:38px;min-height:27px;padding:0 9px;border:1px solid var(--line2);border-radius:4px;color:var(--muted);background:var(--raised);font:12px var(--mono);transition:border-color .18s ease,color .18s ease,background .18s ease,transform .18s ease}.puzzle-answers button:hover:not(:disabled){transform:translateY(-1px);border-color:rgba(245,158,11,.4);color:var(--ink)}.puzzle-answers button.is-wrong{border-color:rgba(248,113,113,.36);color:#fca5a5;background:rgba(248,113,113,.06)}.puzzle-answers button.is-right{border-color:rgba(16,185,129,.4);color:var(--signal);background:rgba(16,185,129,.07)}.puzzle-answers button:disabled{opacity:.64}.puzzle-feedback{min-height:15px;margin:6px 0 0;color:var(--muted);font-size:12px;line-height:1.45}.puzzle-feedback.is-good{color:var(--signal)}.puzzle-stamp{display:grid;justify-items:center;gap:3px;padding:8px 3px;border-left:1px solid var(--line);color:var(--quiet);font:12px var(--mono);letter-spacing:.08em}.puzzle-stamp b{color:var(--accent);font-size:12px}.puzzle-card.is-correct{border-color:rgba(16,185,129,.3)}.puzzle-card.is-correct .puzzle-tile{border-color:rgba(16,185,129,.4);color:var(--signal)}
.code-window-top{display:flex;align-items:center;justify-content:space-between;gap:5px;padding-bottom:7px;border-bottom:1px solid var(--line)}.demo-label{display:flex;align-items:center;gap:5px;color:var(--muted);font:12px var(--mono);letter-spacing:.08em}.demo-label i{width:5px;height:5px;border-radius:50%;background:var(--signal)}.trace-button{padding:3px 5px;border:1px solid var(--line);border-radius:4px;color:var(--muted);background:var(--raised);font:var(--fs-xs) var(--mono)}.trace-button:hover{color:var(--ink);border-color:var(--line2)}.demo-language{margin:8px 0 3px;color:var(--quiet);font:var(--fs-xs) var(--mono)}.hero-demo-code{margin:0;min-height:38px;padding:3px 0;color:var(--ink);font:var(--fs-xs)/1.55 var(--mono)}.trace-line{display:flex;gap:7px;align-items:baseline}.trace-line i{color:var(--accent);font-style:normal}.trace-line b{font-weight:500}.demo-output{display:flex;flex-direction:column;gap:2px;padding-top:6px;border-top:1px solid var(--line);font:var(--fs-xs)/1.4 var(--mono)}.demo-output span{color:var(--quiet)}.demo-output b{color:var(--signal);font-weight:500}.hero-proof{position:absolute;right:0;bottom:2px;display:flex;align-items:center;gap:6px;color:var(--quiet);font:12px var(--mono);letter-spacing:.035em}.hero-proof-dot{width:5px;height:5px;border-radius:50%;background:var(--signal);box-shadow:0 0 8px rgba(16,185,129,.5)}
@keyframes quest-beam{from{transform:translateX(0)}to{transform:translateX(380%)} }
@media(max-width:960px){.quest-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.quest-card:last-child{grid-column:1/-1}.puzzle-card{grid-template-columns:82px minmax(0,1fr) 36px;gap:9px}.puzzle-art{min-height:112px}.hero-proof{right:4px}}
@media(max-width:560px){.quest-hub{padding:12px}.quest-hub-head h2{font-size:15px}.quest-grid{grid-template-columns:1fr}.quest-card,.quest-card:last-child{grid-column:auto;min-height:145px}.quest-card-copy{min-height:38px}.puzzle-card{grid-template-columns:64px minmax(0,1fr);gap:8px;padding:9px}.puzzle-art{min-height:120px}.puzzle-orbit{width:56px;height:56px}.puzzle-tile{width:38px;height:38px;font-size:15px}.puzzle-stamp{display:none}.hero-art{right:-10px;opacity:.38}.hero-proof{font-size:12px}.code-window{right:14px;width:158px}}
@media(prefers-reduced-motion:reduce){.quest-card,.quest-action,.puzzle-answers button{transition:none}.quest-card:hover{transform:none}.quest-card:hover:after{animation:none}.puzzle-orbit,.code-window{animation:none}}

/* A stable course index replaces the previous one-line ticker. */
.welcome-marquee{overflow:visible;scrollbar-width:none}
.welcome-marquee-track{display:flex;width:auto;max-width:100%;flex-wrap:wrap;gap:7px;animation:none}
.ticker-language{min-height:29px;padding:6px 9px;font-size:12px;white-space:nowrap;transition:border-color .18s ease,color .18s ease,background .18s ease}
.ticker-language:hover{border-color:var(--line2);color:var(--ink);background:rgba(255,255,255,.025)}
.auth-message{overflow-wrap:anywhere}
.auth-footnote a{color:var(--accent);text-underline-offset:3px}
.verification-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.verification-actions>button{flex:1 1 180px;min-height:40px}
.verification-status{margin-top:12px;color:var(--muted)}
.auth-input:-webkit-autofill,.auth-input:-webkit-autofill:hover,.auth-input:-webkit-autofill:focus{border:1px solid var(--line2);-webkit-text-fill-color:var(--ink);-webkit-box-shadow:0 0 0 1000px var(--canvas) inset;transition:background-color 99999s ease-out 0s}
@media(max-width:760px){.welcome-marquee{overflow-x:auto;overscroll-behavior-inline:contain;scrollbar-width:none;scroll-snap-type:x proximity}.welcome-marquee::-webkit-scrollbar{display:none}.welcome-marquee-track{width:max-content;max-width:none;flex-wrap:nowrap}.ticker-language{scroll-snap-align:start}}
@media(prefers-reduced-motion:reduce){.ticker-language{transition:none}}
.auth-modal{color-scheme:dark;--canvas:#08080a;--panel:#0d0e12;--raised:#12141a;--raised2:#171a21;--ink:#f4f4f6;--muted:#a5a8b2;--quiet:#767b88;--line:rgba(255,255,255,.09);--line2:rgba(255,255,255,.15);--accent:#f59e0b;--accent-soft:rgba(245,158,11,.1);--signal:#10b981;--cyan:#06b6d4;--danger:#f87171;--shadow:0 18px 55px rgba(0,0,0,.48)}
.auth-modal .auth-input,.auth-modal .account-form input,.auth-modal .otp-slot{color:var(--ink);border-color:var(--line2);background:#08080a}
.auth-modal .auth-input:-webkit-autofill,.auth-modal .auth-input:-webkit-autofill:hover,.auth-modal .auth-input:-webkit-autofill:focus{border:1px solid var(--line2);-webkit-text-fill-color:#f4f4f6;-webkit-box-shadow:0 0 0 1000px #08080a inset}
.auth-modal .auth-input:focus,.auth-modal .account-form input:focus{border-color:rgba(245,158,11,.52)}

/* Guided beginner lessons, practical checkpoint, and standalone product pages. */
.lesson-coach-card{position:relative;overflow:hidden;margin:8px 0 16px;padding:15px;border:1px solid var(--line2);border-radius:7px;background:linear-gradient(145deg,rgba(255,255,255,.035),transparent 58%),var(--panel);box-shadow:inset 0 1px 0 rgba(255,255,255,.09),0 14px 34px rgba(0,0,0,.18)}
.lesson-coach-card:before,.admin-access-panel:before{position:absolute;top:0;left:16px;width:38px;height:1px;background:linear-gradient(90deg,var(--accent),transparent);content:""}
.lesson-coach-head{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:13px;color:var(--quiet);font:500 12px/1.4 var(--mono);letter-spacing:.11em}
.lesson-coach-head span:last-child{color:var(--accent);text-align:right}
.lesson-guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.lesson-guide-grid section{min-width:0;padding:12px 13px 12px 0}
.lesson-guide-grid section+section{padding-left:13px;border-left:1px solid var(--line)}
.lesson-guide-grid b{color:var(--quiet);font:500 12px var(--mono);letter-spacing:.1em}
.lesson-guide-grid p{margin:6px 0 0;color:var(--ink);font-size:12px;line-height:1.6}
.lesson-guide-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:12px 0 0;padding:0;list-style:none}
.lesson-guide-steps li{display:flex;align-items:baseline;gap:7px;color:var(--muted);font-size:12px;line-height:1.4}
.lesson-guide-steps i{color:var(--accent);font:12px var(--mono);font-style:normal}
.lesson-hidden-for-starters{display:none!important}
.stage-practice-state{display:block;margin-top:6px;color:var(--quiet);font:12px/1.4 var(--mono);letter-spacing:.06em}
.stage-modal-footer{flex-wrap:wrap}
.stage-modal-footer .checkpoint-meta{flex:1 1 100%}
.stage-modal-footer .subtle-button,.stage-modal-footer .solid-button{flex:1 1 145px}
.practical-progress{display:flex;justify-content:space-between;gap:12px;padding:0 0 10px;border-bottom:1px solid var(--line);color:var(--quiet);font:12px var(--mono);letter-spacing:.1em}
.practical-progress span:last-child{color:var(--accent)}
.practical-instructions{display:flex;align-items:flex-start;gap:10px;margin:14px 0;padding:10px 11px;border-left:1px solid var(--accent);background:rgba(245,158,11,.045)}
.practical-index{color:var(--accent);font:var(--fs-xs) var(--mono)}
.practical-instructions p{margin:0;color:var(--muted);font-size:12px;line-height:1.6}
.practical-instructions b,.practical-body code{color:var(--ink);font-family:var(--mono);font-size:.95em}
.practical-terminal{overflow:hidden;border:1px solid var(--line2);border-radius:6px;background:#08090b;box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 12px 25px rgba(0,0,0,.2)}
.practical-terminal-head,.practical-terminal-foot{display:flex;justify-content:space-between;gap:10px;padding:8px 10px;color:var(--quiet);font:12px var(--mono);letter-spacing:.07em}
.practical-terminal-head{border-bottom:1px solid var(--line)}
.practical-terminal-foot{border-top:1px solid var(--line);letter-spacing:0}
.practical-terminal-foot span:last-child{color:var(--accent)}
.practical-code-editor{display:block;width:100%;min-height:116px;padding:12px;border:0;border-radius:0;color:#e5e7eb;background:#08090b;font:12px/1.7 var(--mono);resize:vertical;tab-size:2}
.practical-code-editor:focus-visible{outline:2px solid var(--accent);outline-offset:-3px}
.practical-actions{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:10px}
.practical-actions>span{color:var(--quiet);font-size:12px}
.practical-feedback{min-height:24px;margin:10px 0 0;color:var(--muted);font-size:12px;line-height:1.55;animation:feedback-in .2s ease both}
.practical-feedback.is-correct{color:var(--signal)}
.practical-feedback.is-retry{color:#fca5a5}
@keyframes feedback-in{from{transform:translateY(3px);opacity:.35}to{transform:translateY(0);opacity:1}}
.footer-links,.sidebar-footer-links{display:flex;align-items:center;gap:12px}
.footer-links a,.sidebar-footer-links a{color:var(--muted);font-size:12px;text-decoration:none;transition:color .16s ease}
.footer-links a:hover,.sidebar-footer-links a:hover{color:var(--ink)}
.sidebar-footer-links{justify-content:space-around;padding:11px 0 0;margin-top:7px;border-top:1px solid var(--line)}
.standalone-page{min-height:100vh;color-scheme:dark;background:var(--canvas);background-image:linear-gradient(rgba(255,255,255,.018) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.014) 1px,transparent 1px);background-size:72px 72px;background-position:center top}
.standalone-nav,.standalone-footer{display:flex;align-items:center;justify-content:space-between;gap:18px;width:min(1320px,calc(100% - 56px));margin:0 auto}
.standalone-nav{min-height:68px;border-bottom:1px solid var(--line)}
.standalone-nav nav,.standalone-footer nav{display:flex;align-items:center;gap:19px}
.standalone-nav nav a,.standalone-footer nav a{color:var(--muted);font-size:12px;text-decoration:none;transition:color .16s ease}
.standalone-nav nav a:hover,.standalone-footer nav a:hover{color:var(--ink)}
.standalone-brand{display:inline-flex;align-items:center;gap:8px;color:var(--ink);font-size:15px;font-weight:700;letter-spacing:-.045em;text-decoration:none}
.standalone-brand>span:first-child{display:grid;place-items:center;width:29px;height:29px;border:1px solid var(--line2);border-radius:6px;color:var(--accent);background:var(--panel);font:600 var(--fs-xs) var(--mono)}
.standalone-brand .brand-dot{margin-left:-8px;color:var(--accent)}
.standalone-status,.admin-lock-label{display:flex;align-items:center;gap:8px;color:var(--quiet);font:12px var(--mono);letter-spacing:.1em}
.standalone-status i,.admin-lock-label i{width:6px;height:6px;border-radius:50%;background:var(--signal);box-shadow:0 0 0 3px rgba(16,185,129,.1)}
.standalone-main{width:min(1320px,calc(100% - 56px));margin:0 auto;padding:60px 0 84px}
.standalone-hero{position:relative;max-width:760px;margin:0 0 45px;padding:0 0 27px;border-bottom:1px solid var(--line)}
.standalone-hero:after{position:absolute;right:0;bottom:-1px;width:70px;height:1px;background:linear-gradient(90deg,transparent,var(--accent));content:""}
.standalone-hero h1{margin:15px 0 13px;color:var(--ink);font-size:clamp(38px,7vw,72px);line-height:.97;letter-spacing:-.07em;text-wrap:balance}
.standalone-hero h1 span{color:var(--muted)}
.standalone-lede{max-width:650px;margin:0;color:var(--muted);font-size:14px;line-height:1.75}
.standalone-meta{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 0;color:var(--quiet);font:var(--fs-xs) var(--mono)}
.standalone-meta span{color:var(--accent)}
.standalone-layout{display:grid;grid-template-columns:210px minmax(0,760px);align-items:start;gap:clamp(28px,7vw,104px)}
.standalone-index{position:sticky;top:20px;display:grid;gap:2px;padding:11px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.standalone-index>span,.legal-index{margin:0 0 8px;color:var(--quiet);font:12px var(--mono);letter-spacing:.11em}
.standalone-index a{padding:8px 9px;border-left:1px solid transparent;color:var(--muted);font-size:12px;text-decoration:none;transition:border-color .16s ease,color .16s ease,background .16s ease}
.standalone-index a:hover{border-left-color:var(--accent);color:var(--ink);background:rgba(255,255,255,.025)}
.legal-copy section{padding:0 0 29px;margin-bottom:30px;border-bottom:1px solid var(--line);scroll-margin-top:28px}
.legal-copy h2,.faq-group-head h2{margin:0 0 12px;color:var(--ink);font-size:22px;letter-spacing:-.045em;text-wrap:balance}
.legal-copy p:not(.legal-index){margin:0 0 12px;color:var(--muted);font-size:12px;line-height:1.75}
.legal-copy p:last-child{margin-bottom:0}
.legal-copy a{color:var(--accent);text-underline-offset:3px}
.legal-update-note{padding:12px;border-left:1px solid var(--accent);background:rgba(245,158,11,.04)}
.faq-main{max-width:1040px}
.faq-main .standalone-hero{max-width:780px}
.faq-shortcuts{display:flex;flex-wrap:wrap;gap:7px;margin-top:20px}
.faq-shortcuts a{padding:7px 10px;border:1px solid var(--line);border-radius:5px;color:var(--muted);background:var(--panel);font-size:12px;text-decoration:none;transition:border-color .16s ease,color .16s ease}
.faq-shortcuts a:hover{border-color:var(--line2);color:var(--ink)}
.faq-layout{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:30px 48px;align-items:start}
.faq-group{min-width:0;scroll-margin-top:20px}
.faq-group-head{padding:0 0 12px;margin:0 0 4px;border-bottom:1px solid var(--line)}
.faq-group-head>span{display:block;margin-bottom:7px;color:var(--accent);font:12px var(--mono);letter-spacing:.12em}
.faq-group-head h2{margin:0;font-size:20px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{position:relative;padding:14px 28px 14px 0;color:var(--ink);font-size:12px;font-weight:600;line-height:1.45;cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{position:absolute;right:2px;top:13px;color:var(--accent);font:12px var(--mono);content:"+";transition:transform .18s ease}
.faq-item[open] summary:after{transform:rotate(45deg)}
.faq-item p{max-width:650px;margin:0;padding:0 22px 14px 0;color:var(--muted);font-size:12px;line-height:1.7}
.faq-next{position:sticky;top:20px;padding:17px;border:1px solid var(--line);border-radius:7px;background:linear-gradient(145deg,rgba(255,255,255,.03),transparent 72%),var(--panel);box-shadow:inset 0 1px 0 rgba(255,255,255,.08)}
.faq-next h2{margin:8px 0;color:var(--ink);font-size:18px;letter-spacing:-.04em}
.faq-next p{margin:0 0 15px;color:var(--muted);font-size:12px;line-height:1.6}
.faq-next>a{display:flex;justify-content:space-between;align-items:center;min-height:36px;padding:0 10px;border:1px solid var(--line2);border-radius:5px;color:var(--ink);background:var(--raised);font-size:12px;text-decoration:none;transition:border-color .16s ease,background .16s ease}
.faq-next>a:hover{border-color:rgba(245,158,11,.4);background:var(--raised2)}
.standalone-footer{min-height:70px;border-top:1px solid var(--line);color:var(--quiet);font-size:12px}
.admin-main{padding-top:42px}
.admin-intro,.admin-dashboard-head,.admin-log-head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px}
.admin-intro{margin-bottom:24px}
.admin-intro h1,.admin-dashboard-head h2{margin:7px 0;color:var(--ink);font-size:36px;letter-spacing:-.06em}
.admin-intro>div>p:last-child,.admin-dashboard-head>div>p:last-child{margin:0;color:var(--muted);font-size:12px}
.admin-access-panel{position:relative;display:grid;grid-template-columns:55px minmax(0,1fr) minmax(230px,330px);align-items:center;gap:18px;max-width:900px;padding:20px;border:1px solid var(--line2);border-radius:8px;background:linear-gradient(145deg,rgba(255,255,255,.035),transparent 58%),var(--panel);box-shadow:inset 0 1px 0 rgba(255,255,255,.09),0 18px 42px rgba(0,0,0,.2)}
.admin-access-mark{display:grid;place-items:center;width:48px;height:48px;border:1px solid var(--line2);border-radius:6px;color:var(--accent);background:var(--raised);font:var(--fs-xs) var(--mono)}
.admin-access-copy h2{margin:4px 0 7px;color:var(--ink);font-size:20px;letter-spacing:-.04em}
.admin-access-copy>p:not(.page-eyebrow){margin:0;color:var(--muted);font-size:12px;line-height:1.6}
.admin-notice{margin-top:11px!important;color:var(--accent)!important}
.admin-login-form{display:grid;gap:7px}
.admin-login-form label{margin-top:4px;color:var(--muted);font-size:12px}
.admin-login-form input{width:100%;min-width:0;min-height:38px;padding:0 10px;border:1px solid var(--line2);border-radius:5px;color:var(--ink);background:#08090b;font-size:12px}
.admin-login-form .solid-button{min-height:38px;margin-top:6px}
.admin-dashboard{padding-top:36px}
.admin-dashboard-head{padding-bottom:15px;border-bottom:1px solid var(--line)}
.admin-dashboard-head h2{font-size:27px}
.admin-identity{color:var(--muted)}
.admin-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px;margin:15px 0 34px}
.admin-metric{display:grid;gap:7px;min-width:0;min-height:112px;padding:13px;border:1px solid var(--line);border-radius:7px;background:linear-gradient(180deg,rgba(255,255,255,.025),transparent 60%),var(--panel);box-shadow:inset 0 1px 0 rgba(255,255,255,.075)}
.admin-metric>span{color:var(--quiet);font:12px var(--mono);letter-spacing:.09em}
.admin-metric>b{color:var(--ink);font-size:24px;letter-spacing:-.04em;font-variant-numeric:tabular-nums}
.admin-metric>small{color:var(--muted);font-size:12px;line-height:1.45}
.admin-revenue>b{font-size:17px;color:var(--accent)}
.admin-log-section{padding-top:19px;border-top:1px solid var(--line)}
.admin-log-head{align-items:flex-end;margin-bottom:14px}
.admin-log-head h2{margin:5px 0;color:var(--ink);font-size:20px;letter-spacing:-.04em}
.admin-log-head>div>p:last-child{max-width:620px;margin:0;color:var(--muted);font-size:12px;line-height:1.55}
.admin-filter-label{display:grid;gap:5px;flex:0 0 150px;color:var(--quiet);font:12px var(--mono);letter-spacing:.06em}
.admin-filter-label select{min-height:33px;padding:0 8px;border:1px solid var(--line);border-radius:5px;color:var(--ink);background:var(--panel);font:var(--fs-xs) var(--sans)}
.admin-table-wrap{overflow:auto;border:1px solid var(--line);border-radius:6px;background:var(--panel)}
.admin-table{width:100%;min-width:720px;border-collapse:collapse;text-align:left}
.admin-table th{padding:9px 10px;border-bottom:1px solid var(--line2);color:var(--quiet);background:rgba(255,255,255,.02);font:12px var(--mono);letter-spacing:.08em;white-space:nowrap}
.admin-table td{max-width:260px;padding:10px;border-bottom:1px solid var(--line);color:var(--muted);font-size:12px;line-height:1.45;overflow-wrap:anywhere;vertical-align:top}
.admin-table tr:last-child td{border-bottom:0}
.admin-table td:first-child{color:var(--accent);font-family:var(--mono);font-size:12px}
.admin-log-foot{display:flex;justify-content:space-between;align-items:center;gap:12px;min-height:46px;color:var(--quiet);font:var(--fs-xs) var(--mono)}
[data-page-enter]{opacity:1}
.pages-ready [data-page-enter]{animation:page-enter .48s cubic-bezier(.2,.75,.25,1) both}
.pages-ready [data-page-enter]:nth-child(2){animation-delay:.06s}
@keyframes page-enter{from{transform:translateY(8px);opacity:.4}to{transform:translateY(0);opacity:1}}
@media(max-width:900px){.standalone-layout{grid-template-columns:160px minmax(0,1fr);gap:28px}.admin-access-panel{grid-template-columns:45px minmax(0,1fr)}.admin-login-form{grid-column:2}.admin-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:650px){.standalone-nav,.standalone-footer,.standalone-main{width:calc(100% - 32px)}.standalone-nav{min-height:58px}.standalone-nav nav,.standalone-footer nav{gap:11px}.standalone-nav nav a,.standalone-footer nav a{font-size:12px}.standalone-status{display:none}.standalone-main{padding:38px 0 58px}.standalone-hero{margin-bottom:28px}.standalone-hero h1{font-size:clamp(38px,12vw,58px)}.standalone-lede{font-size:12px}.standalone-layout{grid-template-columns:1fr;gap:17px}.standalone-index{position:static;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;padding:9px 0}.standalone-index>span{grid-column:1/-1}.standalone-index a{padding:8px 5px}.legal-copy h2{font-size:20px}.faq-layout{grid-template-columns:1fr;gap:25px}.faq-next{position:static;grid-row:1}.faq-next h2{font-size:17px}.admin-main{padding-top:28px}.admin-intro{align-items:flex-start;flex-direction:column}.admin-intro h1{font-size:30px}.admin-access-panel{grid-template-columns:35px minmax(0,1fr);gap:12px;padding:15px}.admin-access-mark{width:34px;height:34px;font-size:12px}.admin-access-copy h2{font-size:17px}.admin-login-form{grid-column:1/-1}.admin-dashboard-head{align-items:flex-start}.admin-metrics{gap:7px}.admin-metric{min-height:104px;padding:10px}.admin-metric>b{font-size:20px}.admin-log-head{align-items:flex-start;flex-direction:column}.admin-filter-label{width:100%;flex-basis:auto}.standalone-footer{align-items:flex-start;flex-wrap:wrap;padding:13px 0}.standalone-footer>span{order:3;flex-basis:100%}}
@media(max-width:390px){.footer-links{gap:8px}.footer-links a{font-size:12px}.lesson-guide-grid{grid-template-columns:1fr}.lesson-guide-grid section{padding:9px 0}.lesson-guide-grid section+section{padding-left:0;border-top:1px solid var(--line);border-left:0}.lesson-guide-steps{grid-template-columns:1fr}.practical-actions{align-items:flex-start;flex-direction:column}}
@media(prefers-reduced-motion:reduce){.practical-feedback,.pages-ready [data-page-enter]{animation:none}.lesson-guide-steps,.faq-item summary:after,.footer-links a,.sidebar-footer-links a,.standalone-nav nav a,.standalone-footer nav a{transition:none}}

/* Plans and billing: compact dark-glass frames, explicit payment state, and comfortable reading sizes. */
.plans-main{width:min(1180px,calc(100% - 56px));padding-top:56px}
.plans-hero{padding:0 0 18px;border-bottom:1px solid var(--line)}
.plans-hero .page-eyebrow{display:flex;align-items:center;gap:9px}
.plans-hero .page-eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--signal);box-shadow:0 0 10px rgba(16,185,129,.38)}
.plans-hero-row{display:grid;grid-template-columns:minmax(0,1fr) 260px;align-items:end;gap:34px;padding:18px 0 21px}
.plans-hero h1{margin:0 0 14px;color:var(--ink);font-size:clamp(42px,7vw,76px);line-height:.98;letter-spacing:-.075em}
.plans-hero .standalone-lede{max-width:690px;font-size:16px;line-height:1.7}
.plans-trust{position:relative;display:grid;gap:10px;padding:15px;border:1px solid var(--line);border-radius:8px;background:linear-gradient(145deg,rgba(255,255,255,.035),transparent 62%),var(--panel);box-shadow:inset 0 1px 0 rgba(255,255,255,.09),0 16px 34px rgba(0,0,0,.22)}
.plans-trust>span,.plans-proofline,.plan-tier-label,.plan-card-price>small,.billing-table th,.plan-compare-table th,.checkout-steps,.payment-address-card>span,.payment-amount-card>span{font:500 12px/1.5 var(--mono);letter-spacing:.09em}
.plans-trust>span{color:var(--accent)}
.plans-trust>b{color:var(--ink);font-size:18px;line-height:1.35;letter-spacing:-.03em}
.plans-trust>small{color:var(--muted);font-size:13px;line-height:1.55}
.plans-proofline{display:flex;justify-content:space-between;gap:15px;padding-top:11px;border-top:1px solid var(--line);color:var(--muted)}
.plans-proofline>span:first-child{color:#c9cbd2}
.plans-proofline i,.billing-current-led{display:inline-block;width:6px;height:6px;margin-right:8px;border-radius:50%;background:var(--signal);vertical-align:middle}
.plan-picker,.plan-compare,.billing-section{padding:31px 0;border-bottom:1px solid var(--line)}
.plan-picker-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:17px}
.plan-picker-head h2,.plan-faq-intro h2{margin:5px 0 0;color:var(--ink);font-size:clamp(22px,3vw,29px);letter-spacing:-.05em}
.plan-picker-head>p{max-width:430px;margin:0;color:var(--muted);font-size:14px;line-height:1.6}
.duration-switch{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px;max-width:610px;margin:20px 0 10px;padding:4px;border:1px solid var(--line);border-radius:8px;background:rgba(255,255,255,.018)}
.duration-switch button{display:grid;gap:3px;min-height:48px;padding:7px 11px;border:1px solid transparent;border-radius:6px;color:var(--muted);background:transparent;text-align:left;cursor:pointer;transition:background .2s ease,border-color .2s ease,color .2s ease,transform .2s ease}
.duration-switch button b{font-size:14px;color:inherit}.duration-switch button span{font-size:12px;color:var(--muted)}
.duration-switch button[aria-pressed=true]{border-color:rgba(245,158,11,.48);color:var(--ink);background:linear-gradient(135deg,rgba(245,158,11,.09),rgba(255,255,255,.035));box-shadow:inset 0 1px 0 rgba(255,255,255,.07),0 5px 18px rgba(0,0,0,.18)}
.duration-switch button[aria-pressed=true] span{color:#edbd65}
.duration-switch button:hover{transform:translateY(-1px);border-color:var(--line2)}
.plan-load-status,.billing-status{min-height:22px;margin:10px 0 12px;color:var(--muted);font-size:13px;line-height:1.6}
.plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));align-items:stretch;gap:12px;margin-top:15px}
.plan-card{position:relative;display:flex;flex-direction:column;min-width:0;padding:19px;border:1px solid var(--line);border-radius:9px;background:linear-gradient(150deg,rgba(255,255,255,.035),transparent 45%),var(--panel);box-shadow:inset 0 1px 0 rgba(255,255,255,.075),0 16px 36px rgba(0,0,0,.2);transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease}
.plan-card:hover{transform:translateY(-3px);border-color:var(--line2);box-shadow:inset 0 1px 0 rgba(255,255,255,.09),0 22px 42px rgba(0,0,0,.26)}
.plan-card.is-featured{border-color:rgba(245,158,11,.55);background:linear-gradient(155deg,rgba(245,158,11,.075),transparent 38%),var(--panel);box-shadow:inset 0 1px 0 rgba(255,255,255,.1),0 18px 44px rgba(0,0,0,.24)}
.plan-ribbon{position:absolute;top:0;right:15px;padding:5px 8px;border:1px solid rgba(245,158,11,.5);border-top:0;border-radius:0 0 4px 4px;color:#ffd27b;background:#20180e;font:500 12px var(--mono);letter-spacing:.07em}
.plan-card-top{min-height:105px;padding-right:6px}.plan-tier-label{color:var(--muted);font-size:12px}.plan-card-title{margin:10px 0 4px;color:var(--ink);font-size:23px;line-height:1.1;letter-spacing:-.055em}.plan-card-tagline{margin:0;color:var(--muted);font-size:14px;line-height:1.5}
.plan-card-price{display:flex;flex-wrap:wrap;align-items:baseline;gap:7px;padding:14px 0 13px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.plan-card-price>b{color:var(--ink);font-size:35px;letter-spacing:-.065em;font-variant-numeric:tabular-nums}.plan-card-price>span{color:var(--muted);font-size:13px}.plan-card-price>small{flex-basis:100%;color:#edbd65;font-size:12px;letter-spacing:.02em}
.plan-feature-list{display:grid;gap:12px;margin:15px 0 19px;padding:0;list-style:none}.plan-feature-list li{display:flex;align-items:flex-start;gap:9px;color:#d1d2d8;font-size:13px;line-height:1.5}.feature-check{display:inline-grid;place-items:center;flex:0 0 17px;width:17px;height:17px;margin-top:1px;border:1px solid rgba(16,185,129,.42);border-radius:4px;color:#63d8ae;background:rgba(16,185,129,.06);font:12px var(--mono)}
.plan-card-action{display:flex;justify-content:center;align-items:center;width:100%;min-height:43px;margin-top:auto;padding:0 13px;border:1px solid var(--ink);border-radius:6px;color:#08080a;background:var(--ink);font-size:14px;font-weight:700;cursor:pointer;transition:transform .18s ease,background .18s ease,border-color .18s ease,opacity .18s ease}
.plan-card-action:not(:disabled):hover{transform:translateY(-1px);background:#fff;border-color:#fff}.plan-card-secondary{border-color:var(--line2);color:var(--ink);background:var(--raised)}.plan-card-action:disabled{color:#afb1ba;border-color:var(--line2);background:#17191f;cursor:not-allowed;opacity:.9}
.plan-card-footnote{min-height:36px;margin:9px 0 0;color:var(--muted);font-size:12px;line-height:1.55}
.checkout-paused{margin:13px 0 0;padding:12px 14px;border-left:2px solid var(--accent);color:#c6c8d0;background:rgba(245,158,11,.045);font-size:13px;line-height:1.55}.checkout-paused span{margin-right:8px;color:var(--accent);font-family:var(--mono)}
.plan-compare-wrap,.billing-table-wrap{overflow:auto;border:1px solid var(--line);border-radius:7px;background:var(--panel);box-shadow:inset 0 1px 0 rgba(255,255,255,.06)}
.plan-compare-table,.billing-table{width:100%;min-width:660px;border-collapse:collapse;text-align:left}.plan-compare-table th,.plan-compare-table td,.billing-table th,.billing-table td{padding:12px 14px;border-bottom:1px solid var(--line);font-size:13px;line-height:1.5}.plan-compare-table thead th,.billing-table thead th{color:var(--muted);background:rgba(255,255,255,.025);font-size:12px;white-space:nowrap}.plan-compare-table tbody th{color:#e1e2e7;font-weight:500}.plan-compare-table td{color:#c4c6cd}.plan-compare-table tr:last-child th,.plan-compare-table tr:last-child td,.billing-table tr:last-child td{border-bottom:0}.plan-compare-note{margin:10px 0 0;color:var(--muted);font-size:13px;line-height:1.6}
.billing-current{display:flex;align-items:center;gap:13px;min-height:70px;padding:12px 14px;border:1px solid var(--line);border-radius:7px;background:linear-gradient(90deg,rgba(16,185,129,.045),transparent 40%),var(--panel)}.billing-current-led{flex:none;width:8px;height:8px;box-shadow:0 0 10px rgba(16,185,129,.34)}.billing-current>div{flex:1;min-width:0}.billing-current b{color:var(--ink);font-size:16px}.billing-current p{margin:4px 0 0;color:var(--muted);font-size:13px;line-height:1.5}.billing-current .subtle-button{flex:none;min-height:36px}.billing-table-wrap{margin-top:12px}.billing-table td{color:var(--muted);overflow-wrap:anywhere}.billing-table td:first-child{color:var(--ink);font-family:var(--mono);font-size:12px}.billing-table td.is-finished{color:#6fe0b3}.billing-table td.is-failed,.billing-table td.is-expired,.billing-table td.is-review{color:#ffc96b}.billing-status{margin-top:8px}
.plan-faq{display:grid;grid-template-columns:250px minmax(0,1fr);gap:36px;padding:31px 0;border-bottom:1px solid var(--line)}.plan-faq-intro h2{margin-top:6px}.plan-faq-intro>p:last-child{max-width:230px;color:var(--muted);font-size:14px;line-height:1.6}.plan-faq-list{border-top:1px solid var(--line)}.plan-faq-list details{border-bottom:1px solid var(--line)}.plan-faq-list summary{position:relative;padding:15px 28px 15px 0;color:var(--ink);font-size:15px;font-weight:600;cursor:pointer;list-style:none}.plan-faq-list summary::-webkit-details-marker{display:none}.plan-faq-list summary::after{position:absolute;right:2px;top:15px;color:var(--accent);font:13px var(--mono);content:"+";transition:transform .18s ease}.plan-faq-list details[open] summary::after{transform:rotate(45deg)}.plan-faq-list details p{max-width:720px;margin:0;padding:0 25px 16px 0;color:var(--muted);font-size:14px;line-height:1.7}.plans-support-note{padding:16px 0 0;color:var(--muted);font-size:14px;line-height:1.7}.plans-support-note a{color:#f3c56d;text-underline-offset:3px}
.checkout-dialog{width:min(560px,calc(100% - 28px));max-height:min(90dvh,780px);padding:0;overflow:auto;border:1px solid var(--line2);border-radius:9px;color:var(--ink);background:rgba(13,14,18,.97);box-shadow:inset 0 1px 0 rgba(255,255,255,.1),0 30px 100px rgba(0,0,0,.68);backdrop-filter:blur(20px) saturate(140%)}.checkout-dialog::backdrop{background:rgba(0,0,0,.72);backdrop-filter:blur(6px)}.checkout-shell{padding:20px}.checkout-head{display:flex;justify-content:space-between;align-items:flex-start;gap:14px;padding-bottom:15px;border-bottom:1px solid var(--line)}.checkout-head h2{margin:5px 0 0;font-size:24px;letter-spacing:-.045em}.checkout-close{display:grid;place-items:center;width:34px;height:34px;border:1px solid var(--line);border-radius:5px;color:var(--muted);background:var(--raised);font-size:22px;cursor:pointer}.checkout-steps{display:flex;align-items:center;gap:9px;padding:16px 0;color:#7e828e;font-size:12px}.checkout-steps>span{display:flex;align-items:center;gap:6px}.checkout-steps b{font-family:var(--sans);font-size:12px;letter-spacing:0}.checkout-steps>i{width:25px;height:1px;background:var(--line2)}.checkout-steps .is-current{color:var(--accent)}.checkout-steps .is-complete{color:#6fe0b3}.checkout-step-content>label{display:block;margin:5px 0 7px;color:var(--ink);font-size:14px;font-weight:600}.checkout-step-content select{width:100%;min-height:44px;padding:0 10px;border:1px solid var(--line2);border-radius:5px;color:var(--ink);background:#090a0c;font-size:14px}.checkout-network-warning{margin:10px 0;padding:10px 12px;border-left:2px solid var(--accent);color:#e0c58f;background:rgba(245,158,11,.045);font-size:13px;line-height:1.6}.checkout-summary{display:grid;grid-template-columns:1fr auto;gap:8px 14px;margin:14px 0;padding:13px;border:1px solid var(--line);border-radius:6px;background:rgba(255,255,255,.02)}.checkout-summary span{color:var(--muted);font:12px var(--mono);letter-spacing:.08em}.checkout-summary b{color:var(--ink);font-size:14px;text-align:right}.turnstile-container{min-height:0;margin:10px 0}.turnstile-container:not([hidden]){min-height:65px}.checkout-error{min-height:22px;margin:8px 0;color:#ffca74;font-size:13px;line-height:1.55}.checkout-start{width:100%;min-height:44px}.checkout-terms{margin:10px 0 0;color:var(--muted);font-size:12px;line-height:1.55}.payment-progress{display:grid;grid-template-columns:10px minmax(0,1fr) auto;align-items:center;gap:10px;padding:11px;border:1px solid var(--line);border-radius:6px;background:rgba(255,255,255,.025)}.payment-led{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(245,158,11,.1);animation:payment-pulse 1.8s ease-in-out infinite}.payment-progress b{color:var(--ink);font-size:14px}.payment-progress p{margin:3px 0 0;color:var(--muted);font-size:12px;line-height:1.5}.payment-progress time{color:var(--accent);font:13px var(--mono);font-variant-numeric:tabular-nums}.payment-address-card,.payment-amount-card{display:grid;gap:8px;margin-top:12px;padding:13px;border:1px solid var(--line);border-radius:6px;background:#090a0c}.payment-address-card>span,.payment-amount-card>span{color:var(--muted);font-size:12px}.payment-address-card code{display:block;padding:9px;border:1px solid var(--line);border-radius:4px;color:#f0f0f3;background:#08080a;font:12px/1.6 var(--mono);overflow-wrap:anywhere;user-select:all}.payment-address-card button{justify-self:start;min-height:34px}.payment-amount-card b{color:var(--ink);font:600 24px var(--mono);font-variant-numeric:tabular-nums}.payment-amount-card small{color:var(--muted);font-size:12px}.payment-status-list{display:grid;gap:7px;margin:14px 0;padding:0;list-style:none}.payment-status-list li{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:13px}.payment-status-list li::before{display:grid;place-items:center;flex:0 0 20px;width:20px;height:20px;border:1px solid var(--line2);border-radius:50%;color:var(--muted);content:"·"}.payment-status-list li.is-current{color:var(--ink)}.payment-status-list li.is-current::before{border-color:var(--accent);color:var(--accent);content:"•"}.payment-status-list li.is-complete::before{border-color:rgba(16,185,129,.45);color:#6fe0b3;content:"✓"}.checkout-cancel{width:100%;min-height:38px;margin-top:3px}.checkout-step-content[hidden]{display:none}.checkout-step-content#checkoutStepThree{text-align:center;padding:21px 5px 8px}.checkout-complete-mark{display:grid;place-items:center;width:48px;height:48px;margin:0 auto 16px;border:1px solid rgba(16,185,129,.5);border-radius:50%;color:#6fe0b3;background:rgba(16,185,129,.06);font:12px var(--mono)}.checkout-step-content#checkoutStepThree h3{margin:7px 0;color:var(--ink);font-size:25px;letter-spacing:-.05em}.checkout-step-content#checkoutStepThree>p:not(.page-eyebrow){color:var(--muted);font-size:14px;line-height:1.65}.checkout-start-link{display:flex;justify-content:space-between;align-items:center;min-height:43px;margin:18px 0 9px;padding:0 13px;border-radius:5px;color:#08080a;background:var(--ink);font-size:14px;font-weight:700;text-decoration:none}
@keyframes payment-pulse{50%{box-shadow:0 0 0 7px rgba(245,158,11,0)}}
.plans-page :is(button,a,select,summary):focus-visible{outline:2px solid #f5b942;outline-offset:3px}
@media(max-width:850px){.plans-hero-row{grid-template-columns:minmax(0,1fr) 220px;gap:22px}.plan-grid{gap:8px}.plan-card{padding:15px}.plan-card-price>b{font-size:30px}.plan-faq{grid-template-columns:200px 1fr;gap:25px}}
@media(max-width:680px){.plans-main{width:calc(100% - 32px);padding-top:37px}.plans-hero-row{grid-template-columns:1fr;gap:17px}.plans-trust{max-width:none}.plans-proofline{align-items:flex-start;flex-direction:column;gap:6px;font-size:12px}.plan-picker,.plan-compare,.billing-section{padding:25px 0}.plan-picker-head{align-items:flex-start;flex-direction:column;gap:8px}.duration-switch{gap:3px}.duration-switch button{padding:7px 6px}.duration-switch button b{font-size:13px}.duration-switch button span{font-size:12px}.plan-grid{grid-template-columns:1fr;gap:10px}.plan-card{padding:17px}.plan-card-top{min-height:auto;padding-bottom:14px}.plan-card-price{padding:12px 0}.plan-feature-list{gap:10px}.plan-faq{grid-template-columns:1fr;gap:10px;padding:25px 0}.plan-faq-intro>p:last-child{max-width:none}.billing-current{align-items:flex-start;flex-wrap:wrap}.billing-current .subtle-button{margin-left:21px}.checkout-shell{padding:15px}.checkout-steps{gap:5px}.checkout-steps>i{width:14px}.checkout-steps b{font-size:12px}.payment-progress{grid-template-columns:10px minmax(0,1fr)}.payment-progress time{grid-column:2}.plan-compare-table,.billing-table{min-width:610px}}
@media(prefers-reduced-motion:reduce){.plans-page *, .checkout-dialog *{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}.duration-switch button:hover,.plan-card:hover{transform:none}}

/* Payment method picker and owner billing workspace */
.payment-method-fieldset{min-width:0;margin:0;padding:0;border:0}
.payment-method-fieldset legend{margin:5px 0 9px;color:var(--ink);font-size:14px;font-weight:600}
.payment-method-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.payment-method-card{position:relative;display:grid;grid-template-columns:36px minmax(0,1fr) auto;align-items:center;gap:10px;min-width:0;min-height:62px;overflow:hidden;padding:9px;border:1px solid var(--line);border-radius:7px;color:var(--ink);background:linear-gradient(150deg,rgba(255,255,255,.035),transparent 72%),#0a0b0e;text-align:left;transition:border-color .2s ease,background .2s ease,transform .2s ease,box-shadow .2s ease}
.payment-method-card::before{position:absolute;top:0;left:-100%;width:70%;height:1px;background:linear-gradient(90deg,transparent,rgba(245,158,11,.9),transparent);content:"";transition:left .38s cubic-bezier(.2,.75,.2,1)}
.payment-method-card:hover{transform:translateY(-1px);border-color:rgba(255,255,255,.17);background:#101116}
.payment-method-card:hover::before,.payment-method-card.is-selected::before{left:100%}
.payment-method-card.is-selected{border-color:rgba(245,158,11,.5);background:linear-gradient(110deg,rgba(245,158,11,.08),transparent 75%),#101116;box-shadow:inset 0 1px 0 rgba(255,255,255,.075),0 0 0 1px rgba(245,158,11,.08)}
.payment-method-symbol{display:grid;place-items:center;width:34px;height:34px;border:1px solid var(--line2);border-radius:5px;color:var(--accent);background:rgba(255,255,255,.025);font:600 12px var(--mono);letter-spacing:-.04em}
.payment-method-copy{display:grid;min-width:0;gap:3px}
.payment-method-copy b{overflow:hidden;color:var(--ink);font-size:13px;font-weight:600;text-overflow:ellipsis;white-space:nowrap}
.payment-method-copy small{overflow:hidden;color:var(--muted);font-size:12px;text-overflow:ellipsis;white-space:nowrap}
.payment-method-code{color:var(--quiet);font:12px var(--mono);letter-spacing:.03em}
.payment-method-card.is-selected .payment-method-code{color:var(--accent)}
.checkout-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.checkout-actions .subtle-button{min-height:38px;margin:0}
.billing-resume-order{min-height:30px;padding:4px 7px;border:1px solid rgba(245,158,11,.3);border-radius:5px;color:var(--accent);background:rgba(245,158,11,.045);font-size:12px;white-space:nowrap}
.billing-resume-order:hover{border-color:rgba(245,158,11,.55);background:rgba(245,158,11,.09)}
.billing-table{min-width:720px}
.admin-billing-section{position:relative;margin:26px 0;padding:clamp(15px,2.2vw,25px);overflow:hidden;border:1px solid var(--line);border-radius:9px;background:radial-gradient(ellipse at 90% 0,rgba(245,158,11,.055),transparent 30rem),linear-gradient(180deg,rgba(255,255,255,.018),transparent 26%),var(--panel);box-shadow:inset 0 1px 0 rgba(255,255,255,.09),0 20px 50px rgba(0,0,0,.22)}
.admin-billing-head{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;padding-bottom:17px;border-bottom:1px solid var(--line)}
.admin-billing-head h2{margin:4px 0 6px;color:var(--ink);font-size:clamp(20px,2.4vw,27px);letter-spacing:-.045em}
.admin-billing-head p:not(.page-eyebrow){max-width:780px;margin:0;color:var(--muted);font-size:13px;line-height:1.65}
.admin-billing-status{min-height:20px;margin:12px 0;color:var(--muted);font-size:12px}
.billing-admin-metrics{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:7px;margin:12px 0 10px}
.billing-admin-metrics article{display:grid;align-content:start;gap:7px;min-height:99px;padding:11px;border:1px solid var(--line);border-radius:7px;background:linear-gradient(140deg,rgba(255,255,255,.035),transparent 70%),#0a0b0e;box-shadow:inset 0 1px 0 rgba(255,255,255,.055)}
.billing-admin-metrics article>span{color:var(--muted);font:12px/1.45 var(--mono);letter-spacing:.07em}
.billing-admin-metrics article>b{color:var(--ink);font:600 22px/1.1 var(--mono);font-variant-numeric:tabular-nums;letter-spacing:-.04em}
.billing-admin-metrics article>small{color:var(--quiet);font-size:12px;line-height:1.45}
.billing-admin-metrics article.is-review>b{color:var(--accent)}
.billing-gateway{display:grid;grid-template-columns:minmax(190px,.65fr) minmax(0,1.7fr) auto;align-items:center;gap:14px;margin:12px 0 18px;padding:14px;border:1px solid var(--line2);border-radius:7px;background:rgba(255,255,255,.025);box-shadow:inset 0 1px 0 rgba(255,255,255,.08)}
.billing-gateway-mark{display:flex;align-items:center;gap:9px;color:var(--muted);font:12px var(--mono);letter-spacing:.08em}
.billing-gateway-mark i{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(245,158,11,.09)}
.billing-gateway-mark i.is-ready{background:var(--signal);box-shadow:0 0 0 4px rgba(16,185,129,.1)}
.billing-gateway>div:nth-child(2)>b{color:var(--ink);font-size:13px}
.billing-gateway>div:nth-child(2)>p{margin:3px 0 0;color:var(--muted);font-size:12px;line-height:1.55}
.billing-gateway>div:nth-child(2)>.billing-gateway-setup{margin-top:9px;padding-top:8px;border-top:1px solid var(--line);font-size:12px;overflow-wrap:anywhere}
.billing-gateway-setup code{color:var(--ink);font:12px var(--mono);font-variant-numeric:tabular-nums}
.billing-admin-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(280px,.8fr);gap:10px;margin-top:10px}
.billing-admin-panel{min-width:0;padding:14px;border:1px solid var(--line);border-radius:7px;background:linear-gradient(180deg,rgba(255,255,255,.025),transparent 55%),#0a0b0e;box-shadow:inset 0 1px 0 rgba(255,255,255,.06)}
.billing-admin-panel .admin-crypto-subhead{margin-bottom:13px}
.billing-admin-panel .admin-crypto-subhead>span{max-width:220px;font:12px/1.5 var(--sans);letter-spacing:0}
.billing-plan-editor{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.billing-plan-config{display:grid;align-content:start;gap:9px;min-width:0;padding:11px;border:1px solid var(--line);border-radius:6px;background:#0d0e12}
.billing-plan-config-head{display:flex;justify-content:space-between;align-items:center;gap:7px;padding-bottom:8px;border-bottom:1px solid var(--line)}
.billing-plan-config-head b{color:var(--ink);font-size:13px}
.billing-plan-config-head code{color:var(--accent);font:var(--fs-xs) var(--mono)}
.billing-plan-config>label,.billing-grant-form>label,.billing-grant-fields>label,.billing-order-tools>label{display:grid;gap:5px;color:var(--muted);font-size:12px}
.billing-plan-config input:not([type=checkbox]),.billing-grant-form input,.billing-grant-form select,.billing-grant-form textarea,.billing-order-tools input,.billing-order-tools select,.billing-review-reason input{width:100%;min-height:34px;padding:7px 9px;border:1px solid var(--line2);border-radius:5px;color:var(--ink);background:#08090b;font-size:12px}
.billing-plan-config input:focus-visible,.billing-grant-form input:focus-visible,.billing-grant-form select:focus-visible,.billing-grant-form textarea:focus-visible,.billing-order-tools input:focus-visible,.billing-order-tools select:focus-visible,.billing-review-reason input:focus-visible{outline:1px solid var(--accent);outline-offset:1px}
.billing-plan-active{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:12px}
.billing-plan-active input{accent-color:var(--signal)}
.billing-plan-config .subtle-button{min-height:32px;color:var(--ink);font-size:12px}
.billing-plan-feedback,.billing-form-feedback{min-height:18px;margin:0;color:var(--muted);font-size:12px;line-height:1.5}
.billing-grant-form{display:grid;gap:9px}
.billing-grant-fields{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.billing-grant-form textarea{min-height:62px;resize:vertical;line-height:1.5}
.billing-grant-form .solid-button{min-height:37px;font-size:12px}
.billing-orders-panel{margin-top:10px}
.billing-orders-panel .admin-crypto-head{align-items:flex-end;margin-bottom:12px}
.billing-orders-panel h3{margin:4px 0;color:var(--ink);font-size:17px;letter-spacing:-.03em}
.billing-orders-panel .admin-crypto-head>div>p:last-child{max-width:760px;margin:4px 0 0;color:var(--muted);font-size:12px;line-height:1.55}
.billing-order-tools{display:flex;align-items:flex-end;gap:7px}
.billing-order-tools>label{min-width:125px}
.billing-order-tools>label:nth-child(2){min-width:200px}
.billing-order-tools .subtle-button{min-height:34px;color:var(--ink);font-size:12px}
.billing-review-reason{display:grid;grid-template-columns:220px minmax(0,1fr);align-items:center;gap:9px;margin:10px 0;color:var(--muted);font-size:12px}
.admin-billing-section .admin-table-wrap{border:1px solid var(--line);border-radius:6px;background:#090a0c}
.billing-orders-table{min-width:1100px}
.billing-event-table,.billing-audit-table{min-width:520px}
.admin-billing-section .admin-table td{white-space:pre-line;overflow-wrap:anywhere;line-height:1.55}
.billing-mono-cell{font-family:var(--mono);font-size:var(--fs-xs)!important}
.billing-state-cell{color:var(--muted)}
.billing-state-cell.is-finished{color:var(--signal)}
.billing-state-cell.is-review,.billing-state-cell.is-waiting,.billing-state-cell.is-confirming{color:var(--accent)}
.billing-order-quiet{color:var(--quiet);font-size:12px;line-height:1.5}
.billing-approve,.billing-reject{display:block;width:100%;min-height:29px;margin:3px 0;padding:4px 7px;border:1px solid rgba(16,185,129,.3);border-radius:4px;color:#81e6b7;background:rgba(16,185,129,.05);font-size:12px;text-align:left}
.billing-reject{border-color:rgba(248,113,113,.28);color:#ff9696;background:rgba(248,113,113,.045)}
.billing-approve:hover{background:rgba(16,185,129,.12)}.billing-reject:hover{background:rgba(248,113,113,.1)}
.billing-log-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
@media(max-width:1000px){.billing-admin-metrics{grid-template-columns:repeat(3,minmax(0,1fr))}.billing-gateway{grid-template-columns:1fr auto}.billing-gateway-mark{grid-column:1/-1}.billing-plan-editor{grid-template-columns:1fr}}
@media(max-width:720px){.admin-billing-head{flex-direction:column}.admin-billing-head .subtle-button{width:100%}.billing-admin-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}.billing-gateway{grid-template-columns:1fr}.billing-gateway-mark{grid-column:auto}.billing-admin-grid,.billing-log-grid{grid-template-columns:1fr}.billing-orders-panel .admin-crypto-head{align-items:flex-start;flex-direction:column}.billing-order-tools{display:grid;width:100%;grid-template-columns:1fr 1fr}.billing-order-tools>label,.billing-order-tools>label:nth-child(2){min-width:0}.billing-order-tools>button{grid-column:1/-1}.billing-review-reason{grid-template-columns:1fr;gap:5px}}
@media(max-width:480px){.payment-method-grid{grid-template-columns:1fr}.payment-method-card{min-height:58px}.billing-admin-metrics{gap:5px}.billing-admin-metrics article{min-height:92px;padding:9px}.billing-admin-metrics article>span{font-size:12px}.billing-admin-metrics article>b{font-size:19px}.billing-grant-fields{grid-template-columns:1fr}.admin-billing-section{padding:12px}}
@media(prefers-reduced-motion:reduce){.payment-method-card,.payment-method-card::before{transition:none!important}.payment-method-card:hover{transform:none}}
.support-plan-link{margin:13px 0 0;color:var(--muted);font-size:12px;line-height:1.6}

/* Refund requests: clear 80% quote, verified network, and explicit owner-controlled payout. */
.refund-center{display:grid;gap:12px;margin-top:14px;padding:15px;border:1px solid var(--line);border-radius:7px;background:linear-gradient(145deg,rgba(245,158,11,.045),transparent 46%),var(--panel);box-shadow:inset 0 1px 0 rgba(255,255,255,.075),0 12px 28px rgba(0,0,0,.18)}
.refund-center[hidden],.refund-request-form[hidden]{display:none}
.refund-center-head{display:grid;grid-template-columns:minmax(180px,.7fr) minmax(0,1.3fr);align-items:start;gap:16px;padding-bottom:11px;border-bottom:1px solid var(--line)}
.refund-center-head h3{margin:5px 0 0;color:var(--ink);font-size:18px;letter-spacing:-.035em}
.refund-center-head>p{margin:1px 0 0;color:var(--muted);font-size:12px;line-height:1.65}
.refund-request-list{display:grid;gap:7px}
.refund-center-empty{margin:0;padding:10px 11px;border-left:1px solid rgba(245,158,11,.55);color:#c6c8d0;background:rgba(245,158,11,.035);font-size:12px;line-height:1.6}
.refund-eligible-card,.refund-request-card{display:flex;justify-content:space-between;align-items:center;gap:12px;min-width:0;padding:10px 11px;border:1px solid var(--line);border-radius:6px;background:linear-gradient(135deg,rgba(255,255,255,.025),transparent 65%),#0a0b0e;box-shadow:inset 0 1px 0 rgba(255,255,255,.045)}
.refund-eligible-copy{display:grid;min-width:0;gap:4px}.refund-eligible-copy b,.refund-request-card-head>b{color:var(--ink);font-size:13px;line-height:1.4}.refund-eligible-copy small{color:var(--muted);font:12px/1.55 var(--mono);font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.refund-eligible-card .subtle-button{flex:none;min-height:34px;color:var(--ink);font-size:12px}
.refund-request-card{display:grid;gap:4px}.refund-request-card-head{display:flex;align-items:center;justify-content:space-between;gap:9px}.refund-request-card p{margin:0;color:var(--muted);font-size:12px;line-height:1.5;overflow-wrap:anywhere}.refund-request-card .refund-request-note{color:#c5c7ce}.refund-request-state{color:var(--accent);font:12px/1.4 var(--mono);letter-spacing:.035em;text-align:right}.refund-request-card.is-paid .refund-request-state{color:#6fe0b3}.refund-request-card.is-rejected .refund-request-state{color:#ff9a9a}
.refund-request-form{display:grid;gap:9px;padding:12px;border:1px solid rgba(245,158,11,.28);border-radius:6px;background:rgba(245,158,11,.025)}
.refund-request-quote{display:grid;grid-template-columns:auto 1fr;align-items:baseline;gap:4px 12px;padding-bottom:8px;border-bottom:1px solid var(--line)}.refund-request-quote span{color:var(--muted);font:12px var(--mono);letter-spacing:.1em}.refund-request-quote b{color:var(--ink);font:600 17px var(--mono);font-variant-numeric:tabular-nums}.refund-request-quote small{grid-column:1/-1;color:var(--muted);font-size:12px;line-height:1.5}
.refund-request-form>label:not(.refund-acknowledge){display:grid;gap:5px;color:var(--ink);font-size:12px;font-weight:600}.refund-request-form>label>span{color:var(--muted);font-size:12px;font-weight:400}.refund-request-form input:not([type=checkbox]),.refund-request-form textarea{width:100%;min-height:38px;padding:8px 10px;border:1px solid var(--line2);border-radius:5px;color:var(--ink);background:#08090b;font:12px/1.5 var(--mono)}.refund-request-form textarea{resize:vertical;font-family:var(--sans)}.refund-request-form :is(input,textarea):focus-visible{outline:2px solid #f5b942;outline-offset:2px}.refund-acknowledge{display:grid;grid-template-columns:17px minmax(0,1fr);align-items:start;gap:8px;color:var(--muted);font-size:12px;line-height:1.55}.refund-acknowledge input{width:15px;height:15px;margin:1px 0 0;accent-color:var(--accent)}.refund-request-form .solid-button{min-height:39px}.refund-form-status{min-height:17px;margin:0;color:#edbd65;font-size:12px;line-height:1.5}
.billing-refunds-panel{margin-top:10px}.billing-refunds-panel .admin-crypto-head{align-items:flex-end;margin-bottom:12px}.billing-refunds-panel h3{margin:4px 0;color:var(--ink);font-size:17px;letter-spacing:-.03em}.billing-refunds-panel .admin-crypto-head>div>p:last-child{max-width:760px;margin:4px 0 0;color:var(--muted);font-size:12px;line-height:1.6}.refund-owner-safety{max-width:230px;padding:8px 9px;border-left:1px solid rgba(245,158,11,.55);color:#e0c58f;background:rgba(245,158,11,.04);font-size:12px;line-height:1.5}.billing-refunds-table{min-width:1120px}.billing-refunds-table td{white-space:pre-line;overflow-wrap:anywhere;line-height:1.55}.billing-refunds-table td:nth-child(4){max-width:280px;font:var(--fs-xs)/1.6 var(--mono)}.billing-refunds-table .is-pending,.billing-refunds-table .is-approved{color:var(--accent)}.billing-refunds-table .is-paid{color:var(--signal)}.billing-refunds-table .is-rejected{color:#ff9a9a}.refund-payout-form{display:grid;gap:5px;min-width:150px}.refund-payout-form input[type=text]{width:100%;min-height:31px;padding:6px 7px;border:1px solid var(--line2);border-radius:4px;color:var(--ink);background:#08090b;font:var(--fs-xs) var(--mono)}.refund-payout-form input:focus-visible{outline:2px solid #f5b942;outline-offset:1px}.refund-payout-form>label{display:flex;align-items:flex-start;gap:5px;color:var(--muted);font-size:12px;line-height:1.45}.refund-payout-form>label input{flex:none;accent-color:var(--accent)}.refund-payout-form .billing-approve{margin:0}
@media(max-width:720px){.refund-center-head{grid-template-columns:1fr;gap:7px}.refund-eligible-card{align-items:flex-start;flex-direction:column}.refund-eligible-card .subtle-button{width:100%}.refund-request-card-head{align-items:flex-start;flex-direction:column}.refund-request-state{text-align:left}.billing-refunds-panel .admin-crypto-head{align-items:flex-start}.refund-owner-safety{max-width:none}.billing-refunds-table{min-width:980px}}
@media(prefers-reduced-motion:reduce){.refund-eligible-card,.refund-request-card{scroll-behavior:auto}}

/* Checkout copy and layout: keep the complete decision visible on narrow screens. */
.checkout-dialog{
  box-sizing:border-box;
  width:min(560px,calc(100vw - 24px));
  max-width:calc(100vw - 24px);
  max-height:min(calc(100dvh - 24px),780px);
  margin:auto;
  overflow:auto;
  overscroll-behavior:contain;
}
.checkout-shell{
  box-sizing:border-box;
  width:100%;
  min-width:0;
  padding:clamp(12px,4vw,20px);
}
.checkout-head>div,.checkout-step-content,.payment-method-fieldset{min-width:0}
.checkout-head h2{max-width:100%;text-wrap:balance}
.checkout-steps{min-width:0;justify-content:space-between;gap:clamp(4px,2vw,9px)}
.checkout-steps>i{flex:0 1 25px;width:auto;min-width:8px}
.payment-method-grid{grid-template-columns:minmax(0,1fr)}
.payment-method-card{width:100%;min-width:0}
.checkout-network-warning,.checkout-error,.checkout-terms,.payment-progress p,.payment-message{
  max-width:100%;
  overflow-wrap:anywhere;
  text-wrap:pretty;
}
.checkout-summary{min-width:0;grid-template-columns:minmax(0,1fr) auto}
.checkout-summary b{min-width:0;overflow-wrap:anywhere}
.checkout-start,.checkout-start-link,.checkout-cancel{min-height:46px;touch-action:manipulation}
.payment-address-card code{max-width:100%;overflow-wrap:anywhere}
.payment-address-card .payment-address-note{color:var(--muted);font-size:12px;line-height:1.5}
.payment-progress>*{min-width:0}
@media(min-width:600px){.payment-method-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:420px){
  .checkout-dialog{width:calc(100vw - 20px);max-width:calc(100vw - 20px);max-height:calc(100dvh - 20px)}
  .checkout-shell{padding:12px}
  .checkout-head{gap:8px}
  .checkout-head h2{font-size:22px}
  .checkout-steps{font-size:12px}
  .checkout-steps b{font-size:12px}
  .checkout-network-warning{padding:9px 10px;font-size:12px}
  .checkout-summary{gap:8px 10px;padding:11px}
  .checkout-error{font-size:12px}
}
@media(prefers-reduced-motion:reduce){.checkout-dialog{scroll-behavior:auto}}
.support-plan-link a{margin-left:5px;color:var(--ink);text-decoration-color:rgba(245,158,11,.55);text-underline-offset:3px}
.support-plan-link a:hover{color:var(--accent)}
.support-route{font-size:12px}
.support-label{font-size:12px}

@media(min-width:360px) and (max-width:599px){
  .payment-method-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .payment-method-card{grid-template-columns:30px minmax(0,1fr);gap:7px;min-height:62px;padding:8px}
  .payment-method-code{display:none}
  .payment-method-symbol{width:30px;height:30px}
  .payment-method-copy{min-width:0}
  .payment-method-copy b,.payment-method-copy small{overflow-wrap:anywhere}
}
@media(max-width:359px){.payment-method-grid{grid-template-columns:minmax(0,1fr)}}
.support-copy{font-size:13px;line-height:1.6}

/* Hosted-checkout inspired payment selection, in Syntax's dark amber palette. */
.checkout-price-panel{display:flex;justify-content:space-between;align-items:center;gap:18px;margin:2px 0 0;padding:15px 14px;border:1px solid var(--line);border-radius:7px;background:linear-gradient(115deg,rgba(245,158,11,.065),transparent 58%),#090a0c;box-shadow:inset 0 1px 0 rgba(255,255,255,.07)}
.checkout-price-copy,.checkout-price-value{display:grid;gap:4px}
.checkout-price-copy>span{color:var(--quiet);font:500 12px/1.4 var(--mono);letter-spacing:.12em}
.checkout-price-copy>b{color:var(--ink);font-size:17px;letter-spacing:-.025em}
.checkout-price-copy>small{color:var(--muted);font-size:12px}
.checkout-price-value{grid-template-columns:auto auto;align-items:baseline;gap:6px}
.checkout-price-value>b{color:var(--ink);font-size:30px;letter-spacing:-.05em;font-variant-numeric:tabular-nums}
.checkout-price-value>small{color:var(--muted);font-size:12px}
.checkout-onetime{display:flex;align-items:center;gap:8px;margin:9px 1px 15px;color:var(--muted);font-size:12px}
.checkout-onetime>span{width:6px;height:6px;border-radius:50%;background:#10b981;box-shadow:0 0 0 3px rgba(16,185,129,.1)}
.checkout-picker-stack{display:grid;gap:12px}
.checkout-picker-field{display:grid;gap:6px;min-width:0}
.checkout-picker-field>label{color:var(--ink);font-size:13px;font-weight:600}
.checkout-picker{position:relative;min-width:0}
.checkout-picker-trigger{display:flex;align-items:center;gap:11px;width:100%;min-width:0;min-height:58px;padding:9px 12px;border:1px solid var(--line2);border-radius:6px;color:var(--ink);background:#090a0c;text-align:left;cursor:pointer;transition:border-color .16s ease,background .16s ease,box-shadow .16s ease}
.checkout-picker-trigger:hover:not(:disabled){border-color:rgba(245,158,11,.42);background:#0d0e12}
.checkout-picker-trigger[aria-expanded="true"],.checkout-picker-trigger:focus-visible{outline:0;border-color:rgba(245,158,11,.72);box-shadow:0 0 0 2px rgba(245,158,11,.1)}
.checkout-picker-trigger:disabled{color:var(--quiet);cursor:not-allowed;opacity:.7}
.checkout-picker-trigger>svg{flex:0 0 18px;width:18px;height:18px;margin-left:auto;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;color:var(--muted);transition:transform .16s ease}
.checkout-picker-trigger[aria-expanded="true"]>svg{transform:rotate(180deg);color:var(--accent)}
.checkout-picker-symbol{display:grid;place-items:center;flex:0 0 32px;width:32px;height:32px;border:1px solid var(--line2);border-radius:5px;color:var(--accent);background:rgba(245,158,11,.04);font:600 12px/1 var(--mono);letter-spacing:-.04em}
.checkout-picker-copy{display:grid;min-width:0;gap:3px}
.checkout-picker-copy>b{overflow:hidden;color:var(--ink);font-size:13px;font-weight:600;text-overflow:ellipsis;white-space:nowrap}
.checkout-picker-copy>small{overflow:hidden;color:var(--muted);font-size:12px;text-overflow:ellipsis;white-space:nowrap}
.checkout-picker-menu{position:absolute;z-index:20;top:calc(100% + 5px);right:0;left:0;display:grid;gap:5px;max-height:min(260px,38dvh);padding:6px;overflow:auto;border:1px solid var(--line2);border-radius:7px;background:rgba(18,20,26,.98);box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 16px 34px rgba(0,0,0,.52);backdrop-filter:blur(18px) saturate(140%);overscroll-behavior:contain;scrollbar-color:rgba(255,255,255,.2) transparent;scrollbar-width:thin}
.checkout-picker-menu[hidden]{display:none}
.checkout-picker-search{position:sticky;z-index:1;top:0;display:flex;align-items:center;gap:8px;min-height:38px;padding:0 10px;border:1px solid var(--line);border-radius:5px;background:#0b0c10}
.checkout-picker-search>svg{flex:0 0 16px;width:16px;height:16px;fill:none;stroke:var(--muted);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.checkout-picker-search>input{width:100%;min-width:0;min-height:36px;padding:0;border:0;outline:0;color:var(--ink);background:transparent;font:12px var(--sans)}
.checkout-picker-search>input::placeholder{color:var(--quiet)}
.checkout-picker-options{display:grid;gap:3px;min-width:0}
.checkout-picker-option{display:grid;grid-template-columns:34px minmax(0,1fr) auto;align-items:center;gap:9px;width:100%;min-width:0;min-height:48px;padding:6px 8px;border:1px solid transparent;border-radius:5px;color:var(--ink);background:transparent;text-align:left;cursor:pointer;transition:background .15s ease,border-color .15s ease}
.checkout-picker-option:hover,.checkout-picker-option:focus-visible{outline:0;border-color:var(--line);background:rgba(255,255,255,.045)}
.checkout-picker-option[aria-selected="true"]{border-color:rgba(245,158,11,.36);background:rgba(245,158,11,.07)}
.checkout-picker-option .checkout-picker-symbol{width:30px;height:30px;flex-basis:30px}
.checkout-picker-option-copy{display:grid;gap:3px;min-width:0}
.checkout-picker-option-copy>b{overflow:hidden;color:var(--ink);font-size:12px;font-weight:600;text-overflow:ellipsis;white-space:nowrap}
.checkout-picker-option-copy>small{overflow:hidden;color:var(--muted);font-size:12px;text-overflow:ellipsis;white-space:nowrap}
.checkout-picker-option-code{color:var(--quiet);font:var(--fs-xs) var(--mono)}
.checkout-picker-empty{margin:0;padding:13px 9px;color:var(--muted);font-size:12px;line-height:1.5}
.checkout-network-option{grid-template-columns:minmax(0,1fr) auto;min-height:52px;padding:8px 10px}
.checkout-network-option .checkout-picker-option-copy>b{white-space:normal}
.checkout-network-option[aria-selected="true"]::after{color:var(--accent);font:12px var(--mono);content:"SELECTED"}
.checkout-network-warning{margin:12px 0;padding:10px 11px;border-left:2px solid var(--accent);color:#d8c18f;background:rgba(245,158,11,.045);font-size:12px;line-height:1.55}
.checkout-summary{display:none}
.payment-progress time{display:inline-flex;align-items:center;gap:5px;padding:6px 8px;border:1px solid rgba(16,185,129,.38);border-radius:5px;color:#10b981;font-size:12px}
.payment-progress time::before{color:var(--muted);font:12px var(--sans);content:"Expires in"}
.checkout-picker-menu:focus-within{border-color:rgba(245,158,11,.35)}
.checkout-head{position:sticky;z-index:30;top:-20px;margin:0 -20px;padding:20px 20px 13px;background:rgba(13,14,18,.97);backdrop-filter:blur(16px) saturate(135%)}
@media(max-width:420px){
  .checkout-head{top:-12px;margin:0 -12px;padding:12px 12px 10px}
  .checkout-price-panel{padding:12px}
  .checkout-price-value>b{font-size:27px}
  .checkout-picker-trigger{min-height:54px}
  .checkout-picker-menu{max-height:min(220px,34dvh)}
  .payment-progress time{justify-self:start;width:max-content}
}
@media(prefers-reduced-motion:reduce){.checkout-picker-trigger,.checkout-picker-trigger>svg,.checkout-picker-option{transition:none!important}}
.support-trust-index{font-size:12px}
.support-trust b{font-size:13px}
.support-trust p{font-size:12px;line-height:1.6}

/* Tutor workspace: compact controls, readable explanations, and terminal-style code. */
.chat-title-row{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:8px}
.chat-title-row .chat-title{margin:0}
.chat-clear,.chat-copy-button,.chat-retry{border:1px solid var(--line);border-radius:4px;color:var(--muted);background:var(--panel);font:12px var(--mono);transition:border-color .18s ease,color .18s ease,background .18s ease}
.chat-clear{min-height:25px;padding:0 8px}
.chat-clear:hover,.chat-copy-button:hover,.chat-retry:hover{border-color:rgba(245,158,11,.48);color:var(--ink);background:var(--raised)}
.chat-messages{gap:9px;max-height:min(38vh,390px);padding:2px 3px 10px;scroll-behavior:smooth}
.message{max-width:100%;padding:10px 11px;border-radius:6px;font-size:12px;line-height:1.65;white-space:normal;box-shadow:inset 0 1px 0 rgba(255,255,255,.035)}
.message.user{max-width:90%;white-space:pre-wrap}
.message.bot{border-left:2px solid rgba(6,182,212,.6)}
.chat-copy{white-space:pre-wrap;overflow-wrap:anywhere}
.chat-copy+.chat-copy,.chat-code-frame+.chat-copy{margin-top:8px}
.chat-code-frame{margin:8px 0 2px;overflow:hidden;border:1px solid rgba(255,255,255,.09);border-radius:5px;background:#090a0d;box-shadow:inset 0 1px 0 rgba(255,255,255,.06)}
.chat-code-head{display:flex;align-items:center;justify-content:space-between;min-height:27px;padding:0 7px;border-bottom:1px solid rgba(255,255,255,.07);color:var(--quiet);font:12px var(--mono);letter-spacing:.1em}
.chat-copy-button{min-height:20px;padding:0 7px}
.chat-code-frame pre{max-height:210px;margin:0;padding:10px;overflow:auto;color:#e6e7eb;font:12px/1.65 var(--mono);tab-size:2;white-space:pre}
.chat-code-frame code{font:inherit}
.chat-error{border-color:rgba(248,113,113,.26)!important;border-left-color:#f87171!important;color:#f0b4b4!important}
.chat-retry{display:block;min-height:25px;margin-top:8px;padding:0 8px;color:var(--ink)}
.chat-welcome{border-top-color:rgba(255,255,255,.1)}
.suggestions{gap:6px;margin:0 0 9px;transition:opacity .18s ease,transform .18s ease}
.suggestions.is-hidden{display:none}
.suggestion{padding:8px 9px;border-radius:5px;font-size:12px;line-height:1.45}
.chat-input-wrap{align-items:flex-end;gap:6px;margin-top:8px;padding:5px;border-radius:6px;box-shadow:inset 0 1px 0 rgba(255,255,255,.045)}
.chat-input{min-height:32px;max-height:132px;padding:8px 7px;resize:none;line-height:1.5;font-size:12px}
.chat-input:disabled{opacity:.55}
.send-button{flex:none;width:32px;height:32px;cursor:pointer;transition:transform .16s ease,filter .16s ease,opacity .16s ease}
.send-button:hover:not(:disabled){transform:translateY(-1px);filter:brightness(1.08)}
.send-button:disabled{cursor:wait;opacity:.5}
.chat-foot{display:flex;justify-content:space-between;gap:8px;margin:7px 1px 0;text-align:left;font:12px/1.5 var(--mono);letter-spacing:.02em}
#chatProviderState{color:var(--cyan)}
.assistant-thinking{display:flex;align-items:center;gap:8px;color:var(--muted)}
.assistant-thinking:after{width:22px;height:3px;background:linear-gradient(90deg,var(--cyan),transparent);content:"";transform-origin:left;animation:tutor-scan 1.15s ease-in-out infinite alternate}
.preview-auth-card{padding:14px;border:1px solid var(--line);border-radius:7px;background:linear-gradient(145deg,rgba(255,255,255,.035),transparent 62%),var(--panel);box-shadow:inset 0 1px 0 rgba(255,255,255,.07),0 12px 28px rgba(0,0,0,.22)}
.preview-auth-label{color:var(--accent);font:12px var(--mono);letter-spacing:.12em}
.preview-auth-card p{margin:10px 0 14px;color:var(--muted);font-size:12px;line-height:1.6}
.preview-auth-link{display:flex;align-items:center;justify-content:space-between;text-decoration:none}
.admin-preview-link{display:inline-block;margin-top:10px;color:var(--accent);font:12px var(--mono);text-decoration:none}
.admin-preview-link:hover{text-decoration:underline}
@keyframes tutor-scan{from{opacity:.42;transform:scaleX(.35)}to{opacity:1;transform:scaleX(1)}}
@media(max-width:900px){.chat-messages{max-height:34vh}.message{font-size:12px}.chat-code-frame pre{font-size:12px}}
@media(prefers-reduced-motion:reduce){.chat-messages{scroll-behavior:auto}.assistant-thinking:after{animation:none;opacity:.7}.chat-clear,.chat-copy-button,.chat-retry,.send-button{transition:none}}

/* Lesson choreography and owner service health. */
.lesson-body>.lesson-steps,.lesson-body>.lesson-title,.lesson-body>.lesson-objective,.lesson-body>.lesson-coach-card,.lesson-body>.deep-section,.lesson-body>.lesson-note-drawer{animation:lesson-enter .38s cubic-bezier(.2,.75,.25,1) both}
.lesson-body>.lesson-title{animation-delay:.035s}.lesson-body>.lesson-objective{animation-delay:.065s}.lesson-body>.lesson-coach-card{animation-delay:.09s}.lesson-body>.deep-section:nth-of-type(1){animation-delay:.12s}.lesson-body>.deep-section:nth-of-type(2){animation-delay:.15s}.lesson-body>.deep-section:nth-of-type(3){animation-delay:.18s}
@keyframes lesson-enter{from{transform:translateY(7px);opacity:.25}to{transform:translateY(0);opacity:1}}
.lesson-objective{margin:-2px 0 16px;color:var(--muted);font-size:12px;line-height:1.65}
.lesson-experiment{margin-top:12px;padding:10px 11px;border:1px solid rgba(6,182,212,.2);border-left:2px solid var(--cyan);border-radius:5px;background:rgba(6,182,212,.035)}
.lesson-experiment b{color:var(--cyan);font:12px var(--mono);letter-spacing:.12em}
.lesson-experiment p{margin:6px 0 0;color:var(--ink);font-size:12px;line-height:1.65}
.admin-head-actions,.admin-log-tools{display:flex;align-items:center;gap:7px}
.admin-integrations{padding:18px 0 28px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:28px}
.admin-integration-head{display:flex;justify-content:space-between;align-items:flex-end;gap:18px;margin-bottom:13px}
.admin-integration-head h2{margin:5px 0;color:var(--ink);font-size:20px;letter-spacing:-.04em}
.admin-integration-head p:last-child{max-width:640px;margin:0;color:var(--muted);font-size:12px;line-height:1.55}
.admin-integration-head>.subtle-button{display:inline-flex;align-items:center;gap:8px;text-decoration:none;white-space:nowrap}
.integration-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
.integration-card{display:grid;grid-template-columns:1fr auto;gap:8px 10px;min-width:0;padding:12px;border:1px solid var(--line);border-radius:6px;background:linear-gradient(145deg,rgba(255,255,255,.025),transparent 68%),var(--panel);box-shadow:inset 0 1px 0 rgba(255,255,255,.06)}
.integration-card>div{display:flex;align-items:center;gap:8px;min-width:0}.integration-card b{overflow:hidden;color:var(--ink);font-size:12px;text-overflow:ellipsis;white-space:nowrap}
.integration-card>span:not(.integration-led){color:var(--accent);font:12px var(--mono);text-align:right}
.integration-card small{grid-column:1/-1;color:var(--muted);font-size:12px;line-height:1.55;overflow-wrap:anywhere}
.integration-led{width:6px;height:6px;flex:none;border:1px solid var(--quiet);border-radius:50%;background:var(--quiet);box-shadow:0 0 0 3px rgba(255,255,255,.025)}
.integration-led.is-ready{border-color:var(--signal);background:var(--signal);box-shadow:0 0 8px rgba(16,185,129,.32)}
.integration-safety{margin:11px 0 0;color:var(--quiet);font:var(--fs-xs)/1.6 var(--mono)}
.admin-log-tools{align-items:flex-end}
.admin-log-tools .admin-filter-label{flex-basis:150px}
.admin-log-tools .subtle-button{min-height:33px;white-space:nowrap}
@media(max-width:900px){.integration-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.admin-integration-head{align-items:flex-start;flex-direction:column}}
@media(max-width:650px){.admin-head-actions{flex-wrap:wrap;justify-content:flex-end}.admin-log-tools{width:100%;align-items:stretch;flex-direction:column}.admin-log-tools .admin-filter-label{flex-basis:auto}.admin-log-tools .subtle-button{width:100%}.integration-card{padding:10px}}
@media(max-width:430px){.integration-grid{grid-template-columns:1fr}.integration-card b{overflow:visible;text-overflow:clip}}
@media(prefers-reduced-motion:reduce){.lesson-body>.lesson-steps,.lesson-body>.lesson-title,.lesson-body>.lesson-objective,.lesson-body>.lesson-coach-card,.lesson-body>.deep-section,.lesson-body>.lesson-note-drawer{animation:none}}

/* Syntax support flow: exact network first, private review second. */
.support-main{padding-top:54px}
.support-hero{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 280px;align-items:end;gap:clamp(24px,6vw,90px);padding:10px 0 38px;border-bottom:1px solid var(--line)}
.support-hero:after{position:absolute;bottom:-1px;left:0;width:min(230px,42%);height:1px;background:linear-gradient(90deg,var(--accent),transparent);content:""}
.support-hero-copy{max-width:800px}
.support-hero .page-eyebrow{display:flex;align-items:center;gap:8px;color:var(--accent)}
.support-hero .page-eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--signal);box-shadow:0 0 0 3px rgba(16,185,129,.1)}
.support-hero h1{max-width:760px;margin:17px 0 17px;color:var(--ink);font-size:clamp(42px,7vw,78px);line-height:.98;letter-spacing:-.075em;text-wrap:balance}
.support-hero h1 span{color:#aeb2bc}
.support-hero .standalone-lede{max-width:660px;font-size:13px}
.support-route{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:24px;color:var(--muted);font:12px var(--mono);letter-spacing:.04em}
.support-route span{display:flex;align-items:center;gap:6px}
.support-route b{color:var(--accent);font-weight:500}
.support-route>i{width:25px;height:1px;background:var(--line2)}
.support-signal{position:relative;overflow:hidden;padding:18px;border:1px solid var(--line2);border-radius:7px;background:linear-gradient(142deg,rgba(255,255,255,.035),transparent 56%),rgba(14,15,20,.65);box-shadow:inset 0 1px 0 rgba(255,255,255,.09),0 18px 45px rgba(0,0,0,.18);backdrop-filter:blur(18px) saturate(125%)}
.support-signal:before{position:absolute;top:0;left:18px;width:44px;height:1px;background:linear-gradient(90deg,var(--signal),transparent);content:""}
.support-signal-cross{position:absolute;top:12px;right:15px;color:var(--quiet);font:var(--fs-xs) var(--mono)}
.support-signal-label{display:block;margin-bottom:15px;color:var(--quiet);font:12px var(--mono);letter-spacing:.12em}
.support-signal>b{display:block;color:var(--ink);font-size:14px;letter-spacing:-.025em}
.support-signal>p{margin:7px 0 17px;color:var(--muted);font-size:12px;line-height:1.65}
.support-signal-footer{display:flex;align-items:center;gap:8px;padding-top:11px;border-top:1px solid var(--line);color:var(--quiet);font:var(--fs-xs) var(--mono)}
.support-signal-footer i{width:6px;height:6px;border-radius:50%;background:var(--signal)}
.support-flow{padding:28px 0 0}
.support-steps{display:flex;align-items:center;gap:8px;width:max-content;margin:0 auto 20px;color:var(--quiet);font:var(--fs-xs) var(--mono)}
.support-steps span{display:grid;place-items:center;width:26px;height:26px;border:1px solid var(--line);border-radius:5px;background:var(--panel)}
.support-steps span.is-current{border-color:rgba(245,158,11,.4);color:var(--accent);background:rgba(245,158,11,.06)}
.support-steps i{width:34px;height:1px;background:var(--line2)}
.support-columns{display:grid;grid-template-columns:minmax(0,1.03fr) minmax(0,.97fr);gap:10px;align-items:stretch}
.support-panel{position:relative;min-width:0;padding:clamp(17px,2.2vw,26px);border:1px solid var(--line);border-radius:8px;background:linear-gradient(165deg,rgba(255,255,255,.028),transparent 38%),var(--panel);box-shadow:inset 0 1px 0 rgba(255,255,255,.085),0 18px 42px rgba(0,0,0,.16)}
.support-panel:before{position:absolute;top:-1px;left:20px;width:42px;height:1px;background:linear-gradient(90deg,var(--accent),transparent);content:""}
.support-panel-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:20px}
.support-panel-head h2{margin:6px 0 0;color:var(--ink);font-size:clamp(18px,2vw,24px);line-height:1.1;letter-spacing:-.05em}
.support-count,.support-step-index{flex:none;padding:5px 7px;border:1px solid var(--line);border-radius:4px;color:var(--quiet);font:12px var(--mono);letter-spacing:.07em}
.support-label{display:flex;justify-content:space-between;align-items:center;gap:10px;margin:14px 0 7px;color:var(--muted);font-size:12px;font-weight:600}
.support-label>span{color:var(--quiet);font:12px var(--mono);letter-spacing:.08em}
.support-select,.support-form textarea,.support-amount-wrap input{width:100%;min-width:0;border:1px solid var(--line2);border-radius:5px;color:var(--ink);background:#090a0d;font-size:12px}
.support-select{min-height:42px;padding:0 11px}
.support-select:focus-visible,.support-form textarea:focus-visible,.support-amount-wrap input:focus-visible,.crypto-address-input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.support-network-note{min-height:25px;margin:8px 0 12px;color:var(--quiet);font:var(--fs-xs)/1.55 var(--mono)}
.support-address-card{overflow:hidden;margin:9px 0 12px;border:1px solid rgba(6,182,212,.2);border-radius:6px;background:linear-gradient(135deg,rgba(6,182,212,.045),transparent 60%),#090a0d;box-shadow:inset 0 1px 0 rgba(255,255,255,.065)}
.support-address-head{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:9px 11px;border-bottom:1px solid var(--line);color:var(--quiet);font:12px var(--mono);letter-spacing:.1em}
.support-led{display:flex;align-items:center;gap:6px;color:var(--signal)}
.support-led i{width:5px;height:5px;border-radius:50%;background:var(--signal);box-shadow:0 0 8px rgba(16,185,129,.42)}
.support-address{display:block;overflow-wrap:anywhere;padding:14px 11px 12px;color:#d8e2e7;font:12px/1.7 var(--mono);user-select:all}
.support-address-actions{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:8px 10px;border-top:1px solid var(--line)}
.support-network-name{min-width:0;overflow:hidden;color:var(--quiet);font:12px var(--mono);text-overflow:ellipsis;white-space:nowrap}
.support-copy{flex:none;min-height:28px;padding:0 9px;border:1px solid rgba(6,182,212,.24);border-radius:4px;color:#a4e7f1;background:rgba(6,182,212,.055);font:12px var(--mono);transition:background .18s ease,border-color .18s ease,color .18s ease}
.support-copy:hover{border-color:rgba(6,182,212,.5);color:var(--ink);background:rgba(6,182,212,.12)}
.support-notice{display:grid;gap:4px;margin-top:9px;padding:10px 11px;border-left:1px solid rgba(255,255,255,.17);background:rgba(255,255,255,.018)}
.support-notice b{color:#c6c8ce;font-size:12px;font-weight:600}
.support-notice span{color:var(--muted);font-size:12px;line-height:1.6}
.support-notice-warning{border-left-color:var(--accent);background:rgba(245,158,11,.035)}
.support-notice-warning b{color:var(--accent)}
.support-copy{margin:-6px 0 15px;color:var(--muted);font-size:12px;line-height:1.65}
.support-form{display:grid;gap:0}
.support-amount-wrap{position:relative}
.support-amount-wrap input{min-height:39px;padding:0 62px 0 10px;font-family:var(--mono);font-variant-numeric:tabular-nums}
.support-amount-wrap>span{position:absolute;top:50%;right:11px;transform:translateY(-50%);color:var(--quiet);font:var(--fs-xs) var(--mono)}
.support-form textarea{min-height:82px;resize:vertical;padding:10px;line-height:1.55;font-family:var(--mono);font-size:12px}
.support-form textarea::placeholder,.support-amount-wrap input::placeholder{color:var(--quiet)}
.support-explorer-link{width:max-content;max-width:100%;margin-top:8px;color:#90dce7;font:12px var(--mono);text-decoration:none}
.support-explorer-link:hover{text-decoration:underline}
.support-submit-button{display:flex;justify-content:space-between;align-items:center;min-height:40px;margin-top:15px;padding:0 12px;font-size:12px}
.support-submit-button span{font:12px var(--mono)}
.support-form-status{min-height:34px;margin:9px 0 0;color:var(--muted);font-size:12px;line-height:1.55;overflow-wrap:anywhere}
.support-review-note{display:grid;grid-template-columns:37px minmax(0,1fr);gap:10px;align-items:start;margin-top:9px;padding-top:13px;border-top:1px solid var(--line)}
.support-review-mark{display:grid;place-items:center;width:31px;height:31px;border:1px solid var(--line2);border-radius:5px;color:var(--accent);background:var(--raised);font:var(--fs-xs) var(--mono)}
.support-review-note p{margin:0;color:var(--muted);font-size:12px;line-height:1.65}
.support-review-note b{color:var(--ink);font-size:12px}
.support-trust{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;margin:25px 0 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.support-trust>div{min-width:0;padding:15px 18px 17px 0}
.support-trust>div+div{padding-left:18px;border-left:1px solid var(--line)}
.support-trust-index{display:block;margin-bottom:9px;color:var(--quiet);font:12px var(--mono);letter-spacing:.1em}
.support-trust b{display:block;color:var(--ink);font-size:12px}
.support-trust p{margin:5px 0 0;color:var(--muted);font-size:12px;line-height:1.65}
.support-trust a{color:#b3e7ed;text-decoration-color:rgba(179,231,237,.3);text-underline-offset:2px}

/* Owner-only address controls and transaction review. */
.admin-crypto-section{padding:20px 0 30px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:18px 0 28px}
.admin-crypto-head,.admin-crypto-subhead{display:flex;justify-content:space-between;align-items:flex-end;gap:18px}
.admin-crypto-head h2{margin:5px 0;color:var(--ink);font-size:23px;letter-spacing:-.045em}
.admin-crypto-head>div>p:last-child{max-width:780px;margin:0;color:var(--muted);font-size:12px;line-height:1.65}
.admin-crypto-head .subtle-button{flex:none;min-height:32px;font-size:12px}
.admin-crypto-status{min-height:16px;margin:13px 0;color:var(--quiet);font:var(--fs-xs)/1.6 var(--mono)}
.admin-crypto-totals{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-bottom:21px}
.admin-crypto-totals>div{display:flex;justify-content:space-between;align-items:center;min-height:42px;padding:0 11px;border:1px solid var(--line);border-radius:5px;background:var(--panel);box-shadow:inset 0 1px 0 rgba(255,255,255,.06)}
.admin-crypto-totals span{color:var(--quiet);font:12px var(--mono);letter-spacing:.1em}
.admin-crypto-totals b{color:var(--ink);font:500 15px var(--mono);font-variant-numeric:tabular-nums}
.admin-crypto-subhead{align-items:center;margin-bottom:10px}
.admin-crypto-subhead h3{margin:4px 0 0;color:var(--ink);font-size:16px;letter-spacing:-.035em}
.admin-crypto-subhead>span{color:var(--quiet);font:12px/1.6 var(--mono);text-align:right}
.crypto-wallet-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px}
.crypto-wallet-card{min-width:0;padding:11px;border:1px solid var(--line);border-radius:6px;background:linear-gradient(150deg,rgba(255,255,255,.025),transparent 50%),var(--panel);box-shadow:inset 0 1px 0 rgba(255,255,255,.065)}
.topbar-left{display:flex;align-items:center;gap:12px}.breadcrumb-separator{padding:0 7px;color:#c5c6cf}.continue-arrow{padding-left:6px}.idea-title{margin:0}.idea-caption{margin:4px 0 0}.search-results{display:grid;gap:8px;margin-top:14px}.search-result-empty{padding:10px;color:#8e929f;font-size:12px}
.support-address-updated,.support-address-change-note{margin:8px 0;color:var(--muted);font-size:12px;line-height:1.55}.support-address-change-note{padding:9px 10px;border-left:1px solid var(--accent);background:rgba(245,158,11,.035)}
.sensitive-change-dialog{width:min(520px,calc(100% - 24px));max-height:min(90dvh,700px);padding:0;border:1px solid var(--line2);border-radius:8px;color:var(--ink);background:rgba(13,14,18,.98);box-shadow:inset 0 1px 0 rgba(255,255,255,.1),0 28px 90px rgba(0,0,0,.65);backdrop-filter:blur(20px) saturate(140%)}.sensitive-change-dialog::backdrop{background:rgba(0,0,0,.72);backdrop-filter:blur(5px)}.sensitive-change-dialog form{display:grid;gap:13px;padding:20px}.sensitive-change-dialog h2{margin:0;font-size:23px;letter-spacing:-.04em}.sensitive-change-dialog form>p:not(.page-eyebrow){margin:0;color:var(--muted);font-size:13px;line-height:1.55}.sensitive-change-values{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:10px;padding:12px;border:1px solid var(--line);border-radius:6px;background:#08090b}.sensitive-change-values>div{display:grid;gap:6px;min-width:0}.sensitive-change-values span,.sensitive-change-dialog label{color:var(--muted);font-size:12px}.sensitive-change-values code{display:block;max-height:110px;overflow:auto;overflow-wrap:anywhere;color:var(--ink);font:12px/1.5 var(--mono)}.sensitive-change-values>b{color:var(--accent);font:12px var(--mono)}.sensitive-change-dialog label{display:grid;gap:6px}.sensitive-change-dialog input{min-height:42px;padding:8px 10px;border:1px solid var(--line2);border-radius:5px;color:var(--ink);background:var(--canvas);font:13px var(--mono)}.sensitive-change-actions{display:flex;justify-content:flex-end;gap:8px}.sensitive-change-actions button{min-height:40px;padding:0 13px;font-size:12px}.sensitive-change-dialog :focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.crypto-wallet-head{display:flex;justify-content:space-between;align-items:flex-start;gap:8px;margin-bottom:9px}
.crypto-wallet-head>div{display:grid;gap:3px;min-width:0}
.crypto-wallet-head b{overflow-wrap:anywhere;color:var(--ink);font-size:12px}
.crypto-wallet-head span{color:var(--quiet);font:var(--fs-xs) var(--mono)}
.crypto-wallet-state{flex:none;padding:3px 5px;border:1px solid var(--line);border-radius:3px;color:var(--quiet)!important;font:var(--fs-xs) var(--mono)!important}
.crypto-wallet-state.is-enabled{border-color:rgba(16,185,129,.25);color:var(--signal)!important}
.crypto-address-label{display:grid;gap:5px;color:var(--muted);font-size:12px}
.crypto-address-input{width:100%;min-width:0;min-height:32px;padding:0 8px;border:1px solid var(--line);border-radius:4px;color:var(--ink);background:#08090b;font:var(--fs-xs) var(--mono)}
.crypto-wallet-actions{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-top:9px}
.crypto-enable-label{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:12px}
.crypto-enable-label input{accent-color:var(--signal)}
.crypto-save-button{min-height:27px;padding:0 8px;font-size:12px}
.crypto-wallet-feedback{min-height:13px;margin:7px 0 0;color:var(--quiet);font:var(--fs-xs)/1.5 var(--mono)}
.crypto-empty{grid-column:1/-1;margin:0;padding:13px;border:1px dashed var(--line2);color:var(--quiet);font:var(--fs-xs) var(--mono)}
.crypto-claims-section{margin-top:24px}
.crypto-claims-table{min-width:950px}
.crypto-claims-table td{vertical-align:middle}
.crypto-claim-status{display:inline-block;margin:0 0 5px;padding:3px 5px;border:1px solid var(--line);border-radius:3px;color:var(--quiet);font:12px var(--mono);letter-spacing:.06em}
.crypto-claim-status.is-pending{border-color:rgba(245,158,11,.28);color:var(--accent)}
.crypto-claim-status.is-confirmed{border-color:rgba(16,185,129,.28);color:var(--signal)}
.crypto-claim-status.is-rejected{border-color:rgba(248,113,113,.25);color:#fb8585}
.crypto-claim-asset{display:block;color:var(--ink);font:var(--fs-xs) var(--mono)}
.crypto-claims-table td>small,.crypto-claims-table td>div+small{display:block;margin-top:5px;color:var(--quiet);font-size:12px;line-height:1.5}
.crypto-claims-table td>code{display:block;max-width:245px;margin-top:5px;color:#c3c7d0;font:12px/1.5 var(--mono);overflow-wrap:anywhere}
.crypto-tx-link{color:#9ce0e8;font:12px var(--mono);text-decoration:none}
.crypto-tx-link:hover{text-decoration:underline}
.crypto-review-note{width:100%;min-width:155px;min-height:27px;padding:0 7px;border:1px solid var(--line);border-radius:4px;color:var(--ink);background:#08090b;font-size:12px}
.crypto-review-actions{display:flex;gap:4px;margin-top:5px}
.crypto-review-actions button{min-height:25px;padding:0 6px;border:1px solid var(--line2);border-radius:4px;color:var(--muted);background:var(--raised);font:12px var(--mono);transition:border-color .16s ease,color .16s ease,background .16s ease}
.crypto-review-actions .crypto-confirm-button:hover{border-color:rgba(16,185,129,.35);color:var(--signal);background:rgba(16,185,129,.055)}
.crypto-review-actions .crypto-reject-button:hover{border-color:rgba(248,113,113,.3);color:#fb8585;background:rgba(248,113,113,.05)}
.delete-account-form{display:grid;gap:12px;margin-top:16px}
.delete-account-form>label{display:grid;gap:6px;color:var(--ink);font-size:12px;font-weight:600}
.delete-account-form>label span{color:var(--quiet);font-size:12px;font-weight:400}
.delete-account-form input{width:100%;min-height:42px;padding:0 11px;border:1px solid var(--line2);border-radius:5px;color:var(--ink);background:var(--canvas);font:12px var(--mono)}
.delete-account-form input:focus-visible{outline:1px solid var(--accent);outline-offset:2px}
.delete-account-form .account-status{margin:0;color:var(--muted);font-size:12px;line-height:1.6}
.delete-account-actions{justify-content:flex-end;margin:4px 0 0;padding:12px 0 0;border-top:1px solid var(--line)}
.delete-account-actions .danger-button:disabled{opacity:.45;cursor:not-allowed}
.setting-row-danger{border-top:1px solid rgba(248,113,113,.16)}
.legacy-progress-notice{display:flex;align-items:flex-start;gap:12px;margin:14px 0;padding:13px 15px;border:1px solid rgba(245,158,11,.22);border-left:2px solid var(--accent);border-radius:6px;background:linear-gradient(110deg,rgba(245,158,11,.055),transparent 64%),var(--panel);box-shadow:inset 0 1px 0 rgba(255,255,255,.055)}
.legacy-progress-notice[hidden]{display:none!important}
.legacy-progress-index{flex:none;padding:5px 6px;border:1px solid var(--line);border-radius:4px;color:var(--accent);font:12px var(--mono);letter-spacing:.08em}
.legacy-progress-notice p{margin:0;color:var(--muted);font-size:12px;line-height:1.7}
.legacy-progress-notice b{color:var(--ink);font-size:12px}

/* A dedicated support desk keeps account help separate from voluntary donations. */
.support-page .support-hero .standalone-lede{font-size:14px;line-height:1.75}
.support-page .support-route{font-size:12px}
.support-page .support-signal>p{font-size:12px}
.support-page .support-steps{font-size:12px}
.support-page .support-steps span{width:30px;height:30px}
.support-page .support-panel-head h2{font-size:clamp(20px,2vw,25px)}
.support-page .support-label{font-size:12px}
.support-page .support-select{min-height:44px;font-size:13px}
.support-page .support-network-note{min-height:28px;font-size:12px}
.support-page .support-address-head{font-size:12px}
.support-page .support-address{font-size:12px}
.support-page .support-network-name{font-size:12px}
.support-page .support-copy{font-size:12px;line-height:1.7}
.support-page .support-notice b{font-size:12px}
.support-page .support-notice span{font-size:12px}
.support-page .support-amount-wrap input{min-height:43px;font-size:13px}
.support-page .support-amount-wrap>span{font-size:12px}
.support-page .support-form textarea{min-height:96px;font-size:12px}
.support-page .support-form-status{font-size:12px;line-height:1.65}
.support-page .support-review-note p{font-size:12px;line-height:1.7}
.support-page .support-review-note b{font-size:12px}
.support-page .support-trust-index{font-size:12px}
.support-page .support-trust b{font-size:12px}
.support-page .support-trust p{font-size:12px;line-height:1.7}
.support-page .support-trust a{font-size:12px}
.support-center-main{padding-top:62px}
.support-center-hero{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(250px,320px);align-items:end;gap:clamp(28px,6vw,92px);padding:8px 0 34px;border-bottom:1px solid var(--line)}
.support-center-hero:after{position:absolute;bottom:-1px;left:0;width:min(210px,40%);height:1px;background:linear-gradient(90deg,var(--accent),transparent);content:""}
.support-center-hero>div:first-child{max-width:760px}
.support-center-hero .page-eyebrow{display:flex;align-items:center;gap:8px;color:var(--accent)}
.support-center-hero .page-eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--signal);box-shadow:0 0 0 3px rgba(16,185,129,.1)}
.support-center-hero h1{max-width:760px;margin:15px 0 12px;color:var(--ink);font-size:clamp(38px,6.4vw,70px);line-height:1;letter-spacing:-.07em;text-wrap:balance}
.support-center-hero h1 span{color:#aeb2bc}
.support-center-hero .standalone-lede{max-width:650px;margin:0;color:var(--muted);font-size:13px;line-height:1.7}
.support-center-links{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:20px}
.support-center-links>a:not(.solid-button){color:var(--muted);font-size:12px;text-decoration-color:rgba(255,255,255,.2);text-underline-offset:3px}
.support-center-links>a:not(.solid-button):hover{color:var(--ink)}
.support-center-links .solid-button{gap:10px;min-height:38px}
.support-center-signal{position:relative;padding:18px;border:1px solid var(--line2);border-radius:7px;background:linear-gradient(142deg,rgba(255,255,255,.035),transparent 56%),rgba(14,15,20,.78);box-shadow:inset 0 1px 0 rgba(255,255,255,.09),0 18px 45px rgba(0,0,0,.18);backdrop-filter:blur(18px) saturate(125%)}
.support-center-signal:before{position:absolute;top:0;left:18px;width:44px;height:1px;background:linear-gradient(90deg,var(--signal),transparent);content:""}
.support-center-signal .support-signal-label{display:block;margin-bottom:14px;color:var(--quiet);font:12px var(--mono);letter-spacing:.12em}
.support-center-signal>b{display:block;color:var(--ink);font-size:14px;letter-spacing:-.025em}
.support-center-signal>p{margin:7px 0 17px;color:var(--muted);font-size:12px;line-height:1.65}
.support-center-signal>div{display:flex;align-items:center;gap:8px;padding-top:11px;border-top:1px solid var(--line);color:var(--quiet);font:var(--fs-xs) var(--mono)}
.support-center-signal>div i{width:6px;height:6px;border-radius:50%;background:var(--signal)}
.support-center-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:12px;align-items:start;padding-top:20px}
.support-center-grid .support-ticket-section,.support-ticket-history{min-width:0;margin:0;padding:clamp(17px,2vw,24px);border:1px solid var(--line);border-radius:8px;background:linear-gradient(180deg,rgba(255,255,255,.025),transparent 55%),#0d0e12;box-shadow:inset 0 1px 0 rgba(255,255,255,.07),0 18px 42px rgba(0,0,0,.14)}
.support-center-grid .support-ticket-section{gap:16px}
.support-center-grid .support-ticket-head h2,.support-ticket-history h2{margin:5px 0 8px;color:var(--ink);font-size:clamp(20px,2.4vw,26px);letter-spacing:-.045em}
.support-center-grid .support-ticket-head p:not(.page-eyebrow){max-width:560px;color:var(--muted);font-size:12px;line-height:1.65}
.support-center-grid .support-ticket-head .subtle-button{flex:none;padding:0 12px;text-decoration:none}
.support-center-grid .support-ticket-form{gap:13px}
.support-center-grid .support-ticket-form label,.support-ticket-reply label{display:grid;gap:7px;color:var(--muted);font-size:12px;font-weight:500}
.support-center-grid .support-ticket-form input,.support-center-grid .support-ticket-form textarea,.support-ticket-reply textarea{width:100%;min-height:42px;padding:11px 12px;border:1px solid var(--line2);border-radius:5px;color:var(--ink);background:#090a0d;font:12px/1.6 var(--sans);transition:border-color .16s ease,box-shadow .16s ease}
.support-center-grid .support-ticket-form textarea,.support-ticket-reply textarea{min-height:150px;resize:vertical}
.support-center-grid .support-ticket-form input::placeholder,.support-center-grid .support-ticket-form textarea::placeholder{color:var(--quiet)}
.support-center-grid .support-ticket-form input:focus-visible,.support-center-grid .support-ticket-form textarea:focus-visible,.support-ticket-reply textarea:focus-visible{border-color:rgba(6,182,212,.55);outline:2px solid rgba(6,182,212,.22);outline-offset:1px}
.support-center-grid .support-ticket-form .solid-button{justify-self:start;min-height:38px}
.support-center-grid .support-form-status{min-height:0;margin:0;color:var(--muted);font-size:12px;line-height:1.6}
.support-history-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.support-history-head h2{margin-bottom:0}
.support-history-mark{display:grid;place-items:center;width:32px;height:32px;border:1px solid var(--line2);border-radius:5px;color:var(--accent);background:var(--raised);font:var(--fs-xs) var(--mono)}
.support-history-intro{margin:9px 0 18px;color:var(--muted);font-size:12px;line-height:1.6}
.support-ticket-history .support-ticket-list{display:grid;gap:10px}
.support-ticket-history .support-ticket-card{gap:12px;padding:13px;border:1px solid var(--line);border-radius:6px;background:rgba(8,8,10,.56);box-shadow:inset 0 1px 0 rgba(255,255,255,.05)}
.support-ticket-history .support-ticket-card h3{font-size:13px}
.support-ticket-history .support-ticket-meta{font-size:12px}
.support-ticket-history .support-ticket-message{padding:10px;border-left-width:1px}
.support-ticket-history .support-ticket-message>p{font-size:12px;line-height:1.65}
.support-ticket-history .support-ticket-reply{gap:8px;padding-top:10px;border-top:1px solid var(--line)}
.support-ticket-history .support-ticket-reply textarea{min-height:86px}
.support-ticket-history .support-ticket-reply .subtle-button{justify-self:start;padding:0 11px}
.support-center-footnote{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin:20px 0 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.support-center-footnote>div{min-width:0;padding:16px 0 18px}
.support-center-footnote>div+div{padding-left:20px;border-left:1px solid var(--line)}
.support-center-footnote .support-trust-index{display:block;margin-bottom:8px;color:var(--quiet);font:12px var(--mono);letter-spacing:.1em}
.support-center-footnote b{color:var(--ink);font-size:12px}
.support-center-footnote p{margin:6px 0 9px;color:var(--muted);font-size:12px;line-height:1.65}
.support-center-footnote a{color:#c8dce0;font-size:12px;text-decoration-color:rgba(6,182,212,.3);text-underline-offset:3px}
.support-center-footnote a:hover{color:var(--cyan)}
@media(max-width:900px){.support-center-hero{grid-template-columns:minmax(0,1fr) 250px;gap:24px}.support-center-grid{grid-template-columns:1fr}}
@media(max-width:650px){.support-center-main{padding-top:36px;padding-bottom:54px}.support-center-hero{grid-template-columns:1fr;gap:20px;padding-bottom:25px}.support-center-hero h1{font-size:clamp(40px,11vw,58px)}.support-center-signal{max-width:none}.support-center-grid{gap:10px;padding-top:14px}.support-center-grid .support-ticket-section,.support-ticket-history{padding:15px}.support-center-grid .support-ticket-head{flex-direction:column}.support-center-grid .support-ticket-head .subtle-button{width:100%;justify-content:center}.support-center-grid .support-ticket-form textarea{min-height:130px}.support-center-footnote{grid-template-columns:1fr;gap:0}.support-center-footnote>div,.support-center-footnote>div+div{padding:13px 0;border-left:0}.support-center-footnote>div+div{border-top:1px solid var(--line)}}
@media(prefers-reduced-motion:reduce){.support-center-grid .support-ticket-form input,.support-center-grid .support-ticket-form textarea{transition:none}}
@media(max-width:900px){.support-hero{grid-template-columns:minmax(0,1fr) 230px;gap:25px}.support-columns{grid-template-columns:1fr}.support-signal{padding:14px}.crypto-wallet-grid{grid-template-columns:1fr}}
@media(max-width:650px){.support-main{padding-top:34px}.support-hero{grid-template-columns:1fr;gap:20px;padding-bottom:25px}.support-hero h1{font-size:clamp(42px,12vw,62px)}.support-signal{max-width:none}.support-route{gap:7px;font-size:12px}.support-route>i{width:15px}.support-panel{padding:15px}.support-trust{grid-template-columns:1fr}.support-trust>div,.support-trust>div+div{padding:12px 0;border-left:0}.support-trust>div+div{border-top:1px solid var(--line)}.admin-crypto-head{align-items:flex-start;flex-direction:column}.admin-crypto-head .subtle-button{width:100%}.admin-crypto-subhead{align-items:flex-start;flex-direction:column;gap:5px}.admin-crypto-subhead>span{text-align:left}.admin-crypto-totals{gap:5px}.admin-crypto-totals>div{align-items:flex-start;flex-direction:column;justify-content:center;gap:4px;padding:7px}.admin-crypto-totals b{font-size:13px}.crypto-wallet-grid{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){.support-copy,.support-submit-button,.support-copy,.support-explorer-link,.crypto-review-actions button{transition:none}.support-hero [data-page-enter],.support-main [data-page-enter]{animation:none!important}}

/* A compact, honest browser IDE for the code lab. */
.lab-grid{grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);align-items:stretch;gap:10px}
.lab-panel{display:flex;min-height:424px;flex-direction:column;background:linear-gradient(180deg,rgba(255,255,255,.025),transparent 34%),#0d0e12;box-shadow:inset 0 1px 0 rgba(255,255,255,.09),0 16px 36px rgba(0,0,0,.18)}
.lab-file-toolbar{min-height:34px;padding-inline:12px;background:rgba(255,255,255,.018)}
.lab-file-label{display:flex;min-width:0;align-items:center;gap:8px;color:#d6d8df}
.lab-file-label i,.lab-output-title i{width:6px;height:6px;flex:none;border-radius:1px;background:#06b6d4;box-shadow:0 0 0 3px rgba(6,182,212,.08)}
.lab-editor-meta{display:flex;align-items:center;gap:12px;color:#8e929f;font:12px/1.4 var(--mono);font-variant-numeric:tabular-nums;letter-spacing:0}
.lab-action-toolbar{min-height:35px;padding-inline:12px;background:rgba(255,255,255,.01)}
.lab-toolbar-actions{align-items:center}
.lab-reset,.lab-clear,.lab-run{min-height:26px;padding-inline:9px;font-size:12px;transition:color .18s ease,border-color .18s ease,background .18s ease,transform .18s ease}
.lab-reset:hover,.lab-clear:hover{color:#f4f4f6;border-color:rgba(255,255,255,.18);background:#191b21}
.lab-run:hover{background:#d9dbe1;transform:translateY(-1px)}
.lab-run kbd{margin-left:5px;padding:2px 4px;border:1px solid rgba(8,8,10,.16);border-radius:3px;background:rgba(8,8,10,.06);font:var(--fs-xs) var(--mono)}
.lab-editor-wrap{position:relative;display:grid;grid-template-columns:42px minmax(0,1fr);flex:1;min-height:340px;overflow:hidden;background:#08080a}
.lab-gutter{position:relative;overflow:hidden;padding:13px 7px 18px 0;border-right:1px solid rgba(255,255,255,.055);color:#8e929f;background:#0b0c0f;text-align:right;white-space:pre;font:12px/1.7 var(--mono);font-variant-numeric:tabular-nums;user-select:none}
.lab-gutter.has-error:after{position:absolute;right:4px;bottom:5px;padding:1px 3px;border:1px solid rgba(248,113,113,.25);border-radius:3px;color:#fb7777;background:#201214;content:"ERR " attr(data-error-line);font:var(--fs-xs)/1.4 var(--mono)}
.lab-editor{height:100%;min-height:340px;max-height:560px;resize:vertical;padding:13px 14px;tab-size:2;caret-color:#f59e0b;color:#e1e3e9;background:#08080a;font-size:12px;line-height:1.7;white-space:pre;overflow:auto;scrollbar-color:#30333b #0a0b0d}
.lab-editor:focus-visible{outline:0;box-shadow:inset 0 0 0 1px rgba(245,158,11,.12)}
.lab-output-panel{position:relative}
.lab-output-toolbar{min-height:38px;padding-inline:12px}
.lab-output-title{display:flex;align-items:center;gap:8px;color:#9ba1ad}
.lab-output-title i{border-radius:50%;background:#10b981;box-shadow:0 0 0 3px rgba(16,185,129,.09)}
.lab-status{max-width:55%;overflow:hidden;color:#777e8b;text-align:right;text-overflow:ellipsis;white-space:nowrap;letter-spacing:.04em}
.lab-status.is-running{color:#f6bd64}
.lab-status.is-error{color:#fb7777}
.lab-console{display:block;flex:1;width:100%;height:auto;min-height:385px;border:0;background:#08080a;color:#e1e3e9}
.lab-hint{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin:9px 1px 0;color:#858b97;font-size:12px;line-height:1.65}
.lab-hint>span:first-child{max-width:70ch}
.lab-hint-shortcut{flex:none;color:#8e929f;font:12px/1.8 var(--mono);text-align:right}
.lab-hint-shortcut i{padding-inline:3px;color:#8e929f;font-style:normal}
.lab-run:focus-visible,.lab-reset:focus-visible,.lab-clear:focus-visible,.lab-editor:focus-visible{outline:2px solid #f59e0b;outline-offset:2px}
@media(max-width:760px){.lab-grid{grid-template-columns:minmax(0,1fr)}.lab-panel{min-height:0}.lab-editor-wrap{min-height:300px}.lab-editor{min-height:300px;max-height:52vh}.lab-console{height:350px;min-height:300px}.lab-hint{flex-direction:column;gap:4px}.lab-hint-shortcut{text-align:left}}
@media(max-width:430px){.lab-file-toolbar,.lab-action-toolbar{padding-inline:8px}.lab-toolbar-actions{gap:3px}.lab-reset,.lab-clear,.lab-run{padding-inline:6px;font-size:12px}.lab-run kbd{display:none}.lab-editor-meta{gap:6px;font-size:12px}}
@media(prefers-reduced-motion:reduce){.lab-reset,.lab-clear,.lab-run{transition:none}}

/* Keep the editor controls readable inside the three-column workspace. */
@media(max-width:1450px){.lab-grid{grid-template-columns:minmax(0,1fr)}}
.lab-action-toolbar{flex-wrap:wrap;gap:5px;padding-block:6px}
.lab-action-toolbar>span:first-child{width:100%}
.lab-toolbar-actions{margin-left:auto;flex-wrap:wrap;justify-content:flex-end}
.lab-hint{flex-wrap:wrap}
.lab-hint>span:first-child{flex:1 1 330px}
.lab-hint-shortcut{flex:1 1 300px;white-space:normal}
.placement-form{display:grid;grid-template-columns:minmax(0,1fr);gap:17px}
.placement-choice-group{min-width:0;padding:0;border:0}
.placement-choice-group legend{display:flex;align-items:center;gap:8px;margin:0 0 9px;color:var(--muted);font:500 12px/1.4 var(--mono);letter-spacing:.12em;text-transform:uppercase}
.placement-choice-group legend::before{width:5px;height:5px;border-radius:1px;background:var(--accent);content:""}
.placement-goal-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}
.placement-experience-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px}
.placement-option{position:relative;display:grid;align-content:space-between;gap:15px;min-width:0;min-height:100px;padding:12px 13px;border:1px solid var(--line2);border-radius:6px;color:var(--ink);background:linear-gradient(155deg,rgba(255,255,255,.035),transparent 58%),var(--panel);box-shadow:inset 0 1px 0 rgba(255,255,255,.055);cursor:pointer;transition:border-color .16s ease,background .16s ease,box-shadow .16s ease,transform .16s ease}
.placement-option:hover{border-color:rgba(245,158,11,.48);background-color:var(--raised);transform:translateY(-1px)}
.placement-option:has(input:checked){border-color:rgba(245,158,11,.78);background:linear-gradient(125deg,rgba(245,158,11,.105),rgba(245,158,11,.025) 58%,transparent),var(--raised);box-shadow:inset 0 1px 0 rgba(255,255,255,.1),0 0 0 1px rgba(245,158,11,.08)}
.placement-option:focus-within{outline:2px solid var(--accent);outline-offset:3px}
.placement-option input{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:pointer}
.placement-option-top{display:flex;justify-content:space-between;align-items:center;min-height:22px}
.placement-option-index{color:var(--quiet);font:12px/1 var(--mono);font-variant-numeric:tabular-nums;letter-spacing:.08em}
.placement-option-state{display:grid;place-items:center;width:20px;height:20px;border:1px solid var(--line2);border-radius:4px;color:transparent;background:rgba(0,0,0,.2);transition:color .16s ease,border-color .16s ease,background .16s ease}
.placement-option-state svg{width:13px;height:13px}
.placement-option:has(input:checked) .placement-option-index{color:var(--accent)}
.placement-option:has(input:checked) .placement-option-state{border-color:var(--accent);color:var(--canvas);background:var(--accent)}
.placement-option-copy{display:grid;gap:3px;min-width:0}
.placement-option-copy b{color:var(--ink);font-size:13px;font-weight:600;line-height:1.35;letter-spacing:-.015em}
.placement-option-copy small{color:var(--muted);font-size:12px;line-height:1.4}
.placement-guidance,.placement-guest-note{margin:0;padding:11px 13px;border:1px solid rgba(6,182,212,.18);border-left:2px solid var(--cyan);border-radius:4px;color:var(--muted);background:linear-gradient(100deg,rgba(6,182,212,.075),rgba(6,182,212,.015));font-size:12px;line-height:1.55}
.placement-guest-note{border-left-color:var(--accent)}
.placement-actions{justify-content:space-between;margin-inline:-12px;margin-bottom:-12px}
@media(prefers-reduced-motion:reduce){.placement-form *{scroll-behavior:auto}.placement-option{transition:none;transform:none}.placement-option:hover{transform:none}}
@media(max-width:620px){.placement-form{gap:14px}.placement-goal-grid{gap:8px}.placement-experience-grid{grid-template-columns:minmax(0,1fr);gap:7px}.placement-option{min-height:86px;padding:10px 12px}.placement-experience-grid .placement-option{grid-template-columns:28px minmax(0,1fr) 20px;align-items:center;min-height:56px;padding:9px 11px;gap:9px}.placement-experience-grid .placement-option-top{display:contents}.placement-experience-grid .placement-option-index{grid-column:1;grid-row:1;border:1px solid var(--line2);border-radius:4px;display:grid;place-items:center;width:26px;height:26px}.placement-experience-grid .placement-option-copy{grid-column:2;grid-row:1}.placement-experience-grid .placement-option-state{grid-column:3;grid-row:1}}
@media(max-width:480px){.placement-actions{position:sticky;bottom:-12px;padding:10px 12px;background:rgba(13,14,18,.96);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}}
@media(max-width:360px){.placement-goal-grid{grid-template-columns:minmax(0,1fr)}.placement-goal-grid .placement-option{min-height:76px}}

/* Learning workspace: calmer hierarchy, readable controls, and room for the lesson. */
@media(min-width:1201px){
  .app{grid-template-columns:224px minmax(0,1fr) 306px;max-width:none;width:100%}
  .sidebar{padding:25px 15px 17px}
  .rightbar{padding:22px 17px}
}
#dashboardView,#subpage{width:100%;max-width:1800px;margin-inline:auto}
.brand{margin-bottom:36px}
.nav-label,.page-eyebrow,.auth-kicker,.welcome-kicker,.lesson-sample-head,.chat-title,.leaderboard-kicker,.checkpoint-meta,.practice-kicker,.lesson-visual-heading,.lab-toolbar,.note-tag,.course-level{font-size:12px;letter-spacing:.11em}
.nav-label{margin-bottom:10px}
.nav{gap:4px}
.nav-btn{min-height:42px;font-size:13px}
.side-rule{margin:21px 8px}
.streak-card{padding:15px}
.streak-top{font-size:12px}
.streak-card p{font-size:12px;line-height:1.55}
.day{font-size:12px}
.day i{width:24px;height:23px}
.profile{padding:15px 5px 0}
.profile-text b{font-size:12px}
.profile-text span{font-size:12px}
.sidebar-footer-links{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px 8px}
.sidebar-footer-links a{font-size:12px;line-height:1.35;white-space:nowrap}
.main{padding:25px clamp(24px,2.5vw,42px) 64px}
.topbar{min-height:44px;margin-bottom:29px}
.breadcrumb{font-size:12px}
.icon-button,.lang-select,.sign-in-button{min-height:38px}
.icon-button{width:38px}
.welcome{align-items:center;margin-bottom:20px}
.welcome h1,.welcome-copy h1,.page-heading h1{font-size:clamp(32px,2.5vw,44px);line-height:1.06;letter-spacing:-.052em}
.welcome p,.welcome-intro,.page-heading p{font-size:13px;line-height:1.7}
.welcome p{margin-top:10px}
.week-chip{padding:9px 12px;font-size:12px}
.hero{min-height:210px;padding:30px clamp(24px,2.7vw,38px);margin-bottom:19px;background:radial-gradient(ellipse at 82% 16%,rgba(245,158,11,.075),transparent 26rem),linear-gradient(135deg,#111216,#0b0c0f 62%,#101116)}
.hero-content{max-width:60%}
.hero-label{margin-bottom:10px;font-size:12px}
.hero h2{font-size:clamp(23px,1.8vw,30px);line-height:1.18}
.hero p{font-size:13px;line-height:1.6;margin-bottom:17px}
.primary-button,.solid-button,.auth-submit,.lab-run,.welcome-primary{min-height:41px;padding-inline:16px;font-size:12px}
.text-button,.link-button{font-size:12px}
.hero-art{width:245px;height:180px}
.stats{gap:12px;margin-bottom:28px}
.stat-card{align-items:center;flex-direction:row;gap:13px;padding:15px 16px;min-height:82px}
.stat-icon{width:34px;height:34px;font-size:12px}
.stat-copy{gap:2px}
.stat-copy span{font-size:12px;letter-spacing:.08em}
.stat-copy b{font-size:22px;line-height:1.2}
.stat-copy small{font-size:12px}
.quest-hub{padding:20px;margin-bottom:30px}
.quest-hub-head{margin-bottom:17px}
.quest-kicker{font-size:12px;letter-spacing:.12em}
.quest-hub-head h2{font-size:21px;letter-spacing:-.035em}
.quest-hub-head p{font-size:12px;line-height:1.6}
.level-progress{margin:0 0 15px;padding:10px 12px}
.level-progress-meta{font-size:12px}
.level-track{height:4px}
.quest-grid{gap:11px}
.quest-card{min-height:154px;padding:14px}
.quest-card-copy{gap:7px}
.quest-card-copy b{font-size:13px}
.quest-card-copy span{font-size:12px;line-height:1.55}
.quest-card-bottom{font-size:12px}
.quest-action{min-height:32px;padding-inline:10px;font-size:12px}
.quest-icon{width:29px;height:29px;font-size:12px}
.quest-reward{font-size:12px}
.puzzle-card{min-height:158px;grid-template-columns:88px minmax(0,1fr) 42px;gap:14px;margin-top:14px;padding:16px}
.puzzle-kicker{font-size:12px;letter-spacing:.1em}
.puzzle-content h3{font-size:16px;margin:5px 0 9px}
.puzzle-code{padding:8px 11px;font-size:12px;line-height:1.7}
.puzzle-answers{gap:7px;margin-top:8px}
.puzzle-answers button{min-width:42px;min-height:34px;font-size:12px}
.puzzle-feedback{font-size:12px;line-height:1.5;margin-top:6px}
.section-heading{margin-bottom:13px}
.section-heading h2{font-size:22px;letter-spacing:-.04em}
.section-heading p{font-size:12px;line-height:1.6}
.path-controls{gap:10px;margin-bottom:14px}
.rank-switcher{gap:6px}
.rank-button{min-height:36px;padding-inline:10px;font-size:12px}
.stage-filter,.lesson-search{min-height:39px;font-size:12px}
.right-head{margin-bottom:16px}
.right-head>b{font-size:12px}
.online{font-size:12px}
.tutor-card{padding:16px}
.tutor-card h3{font-size:14px}
.tutor-card p{font-size:12px;line-height:1.6}
.tutor-status{font-size:12px}
.chat-area{margin-top:18px}
.chat-title{font-size:12px}
.chat-clear{font-size:12px}
.message{font-size:12px;line-height:1.6}
.suggestions{gap:7px}
.suggestion{min-height:38px;padding-inline:11px;font-size:12px}
.chat-input{min-height:62px;padding:12px;font-size:12px;line-height:1.5}
.send-button{width:38px;height:38px}
.chat-foot{font-size:12px;line-height:1.5}
.quick-exam{padding:14px;margin-top:16px}
.quick-exam-top{font-size:12px}
.quick-exam p{font-size:12px;line-height:1.55}
.exam-button{min-height:38px;font-size:12px}
@media(max-width:1200px){
  .main{padding:24px 24px 64px}
  .hero{min-height:196px}
}
@media(max-width:760px){
  .main{padding:20px 16px 90px}
  .topbar{min-height:40px;margin-bottom:24px}
  .welcome{align-items:flex-start;flex-direction:column;gap:8px;margin-bottom:17px}
  .welcome h1,.welcome-copy h1,.page-heading h1{font-size:clamp(30px,8vw,40px)}
  .week-chip{align-self:flex-start}
  .hero{min-height:0;padding:24px 20px;margin-bottom:15px}
  .hero-content{max-width:100%}
  .hero-art{display:none}
  .hero h2{font-size:24px}
  .hero p{font-size:13px}
  .stats{grid-template-columns:1fr;gap:8px;margin-bottom:19px}
  .stat-card{min-height:72px;padding:12px 14px}
  .quest-hub{padding:15px;margin-bottom:23px}
  .quest-hub-head h2{font-size:19px}
  .quest-grid{grid-template-columns:1fr;gap:8px}
  .quest-card{min-height:142px}
  .puzzle-card{grid-template-columns:56px minmax(0,1fr);gap:10px;padding:12px}
  .puzzle-stamp{display:none}
  .section-heading{align-items:flex-start;flex-direction:column;gap:4px}
  .path-controls{align-items:stretch;flex-direction:column}
  .rank-switcher{max-width:100%;overflow-x:auto;padding-bottom:4px}
}
@media(max-width:430px){
  .main{padding-inline:13px}
  .top-actions{gap:4px}
  .top-actions .icon-button{width:34px;min-height:34px}
  .lang-select{max-width:100px;min-height:34px}
  .quest-hub{padding:12px}
  .quest-hub-head{gap:8px}
  .level-orb{width:48px;height:48px}
  .puzzle-art{width:50px;height:58px}
  .puzzle-content h3{font-size:15px}
}
@media(prefers-reduced-motion:reduce){
  .nav-btn,.icon-button,.lang-select,.sign-in-button,.primary-button,.solid-button,.auth-submit,.lab-run,.welcome-primary,.quest-card{transition:none}
}

/* Navigation drawer, icon rail, and theme contrast across the whole app. */
:root{--quiet:#8e929f;--action-bg:#f4f4f6;--action-ink:#08080a;--action-border:rgba(255,255,255,.78);--focus-ring:#f59e0b}
body[data-theme="light"]{--muted:#555a63;--quiet:#686d76;--accent:#885300;--accent-soft:rgba(136,83,0,.1);--signal:#08724f;--cyan:#08798d;--danger:#b42318;--action-bg:#17181b;--action-ink:#f4f4f6;--action-border:#17181b;--focus-ring:#885300}
html,body{width:100%;max-width:100%;overflow-x:clip}
.mobile-menu{display:grid;flex:none}
.sidebar-footer-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));align-items:stretch;gap:5px 7px}
.sidebar-footer-links a{display:flex;align-items:center;gap:7px;min-width:0;padding:5px 4px;border-radius:5px;color:var(--muted);font-size:12px;line-height:1.4;text-decoration:none;transition:color .18s ease,background-color .18s ease}
.sidebar-footer-links a:hover{color:var(--ink);background:var(--raised)}
.sidebar-footer-links svg{width:15px;height:15px;flex:none;color:var(--quiet)}
.sidebar-footer-links a:hover svg{color:var(--accent)}
.app.sidebar-collapsed{grid-template-columns:68px minmax(0,1fr) 306px}
.app.sidebar-collapsed .sidebar{align-items:center;padding:21px 9px 14px}
.app.sidebar-collapsed .brand{justify-content:center;width:100%;padding:0;margin-bottom:28px}
.app.sidebar-collapsed .brand-name,.app.sidebar-collapsed .nav-label{display:none}
.app.sidebar-collapsed .nav,.app.sidebar-collapsed .sidebar>nav{width:100%;justify-items:center}
.app.sidebar-collapsed .nav-btn{position:relative;justify-content:center;width:44px;min-height:44px;padding:0;font-size:0}
.app.sidebar-collapsed .nav-btn svg{width:19px;height:19px}
.app.sidebar-collapsed .nav-pill{position:absolute;top:1px;right:1px;display:grid;place-items:center;min-width:15px;height:15px;margin:0;padding:0 2px;font-size:12px}
.app.sidebar-collapsed .nav-btn[data-nav="Idea board"] .nav-pill{display:none}
.app.sidebar-collapsed .side-rule{width:100%;margin:11px 0}
.app.sidebar-collapsed .streak-card{width:48px;padding:8px 5px}
.app.sidebar-collapsed .streak-top{justify-content:center}
.app.sidebar-collapsed .streak-top>span:nth-child(2),.app.sidebar-collapsed .streak-card p,.app.sidebar-collapsed .streak-week{display:none}
.app.sidebar-collapsed .profile{justify-content:center;width:100%;padding:12px 0 0}
.app.sidebar-collapsed .profile-text,.app.sidebar-collapsed .profile .more{display:none}
.app.sidebar-collapsed .sidebar-footer-links{grid-template-columns:1fr;justify-items:center;gap:3px;width:100%}
.app.sidebar-collapsed .sidebar-footer-links a{justify-content:center;width:42px;height:34px;padding:0;font-size:0}
.app.sidebar-collapsed .sidebar-footer-links a span{display:none}
.app.sidebar-collapsed .sidebar-footer-links svg{width:17px;height:17px}
.sidebar-backdrop{position:fixed;z-index:15;inset:0;display:block;border:0;background:rgba(0,0,0,.54);opacity:0;transition:opacity .22s ease}
.sidebar-backdrop[hidden]{display:none}
.sidebar-backdrop.open{opacity:1}
.sidebar{overflow-x:hidden;overscroll-behavior:contain}
.rightbar{overflow:hidden}
.chat-area{flex:1;min-height:0}
.chat-messages{flex:1;min-height:100px;max-height:none;overscroll-behavior:contain}
.message.bot{padding:13px 14px;border-left:2px solid var(--cyan);color:var(--ink);line-height:1.72}
.message-content{min-width:0;color:var(--muted);font-size:12px;line-height:1.75;overflow-wrap:anywhere}
.message-meta{display:flex;align-items:center;gap:7px;margin:0 0 10px;color:var(--ink);font-size:12px;font-weight:650}
.message-avatar{display:grid;place-items:center;width:22px;height:22px;border:1px solid var(--line2);border-radius:5px;color:var(--accent);background:var(--panel);font:600 var(--fs-xs) var(--mono)}
.message-tag{margin-left:auto;color:var(--quiet);font:12px var(--mono);letter-spacing:.09em;text-transform:uppercase}
.chat-copy{color:var(--muted);font-size:12px;line-height:1.75}
.chat-copy+.chat-copy,.chat-code-frame+.chat-copy{margin-top:10px}
.chat-code-frame{margin:12px 0 3px;border-color:var(--line2);border-radius:6px;background:#090a0d}
.chat-code-head{min-height:32px;padding-inline:10px;color:#a7acb6;font-size:12px}
.chat-copy-button{min-height:25px;padding-inline:9px;color:#c9cdd5}
.chat-code-frame pre{max-height:none;padding:12px;color:#eff0f3;font-size:12px;line-height:1.75;white-space:pre-wrap;overflow-wrap:anywhere;word-break:break-word;overflow-x:hidden}
.message.user{max-width:88%;padding:10px 13px;background:var(--accent-soft);color:var(--ink);font-size:12px;line-height:1.65}
.suggestion,.chat-input{font-size:12px}
.chat-copy-button:focus-visible,.nav-btn:focus-visible,.sidebar-footer-links a:focus-visible,.mobile-menu:focus-visible{outline:2px solid var(--focus-ring);outline-offset:2px}
.primary-button,.solid-button,.auth-submit,.lab-run,.welcome-primary{border-color:var(--action-border);color:var(--action-ink);background:var(--action-bg)}
.primary-button:hover,.solid-button:hover,.auth-submit:hover,.lab-run:hover,.welcome-primary:hover{background:var(--action-bg);box-shadow:0 7px 22px rgba(0,0,0,.14)}
.theme-option.active{border-color:var(--accent);color:var(--ink);background:var(--accent-soft)}
.nav-btn.active{border-color:color-mix(in srgb,var(--accent) 36%,transparent);background:linear-gradient(105deg,var(--accent-soft),transparent 86%),var(--raised)}
.message.bot,.message.user,.chat-code-frame,.chat-code-head,.chat-copy-button,.suggestion,.chat-input-wrap,.quick-exam,.exam-button,.nav-btn,.sidebar-footer-links a{transition:color .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .18s ease}
html.theme-transition body,html.theme-transition body *{transition:color .24s ease,background-color .24s ease,border-color .24s ease,box-shadow .24s ease!important}
@media(min-width:761px) and (max-width:1200px){.app.sidebar-collapsed{grid-template-columns:68px minmax(0,1fr)}.app.sidebar-collapsed .rightbar{transform:translateX(calc(100% + 16px))}}
@media(max-width:760px){
  .app.sidebar-collapsed{display:block}
  .sidebar{left:8px;width:min(296px,calc(100vw - 24px));max-width:calc(100vw - 16px);overflow-y:auto;overflow-x:hidden}
  .sidebar.mobile-open{transform:translateX(0)}
  .sidebar-backdrop{z-index:15}
  .sidebar-footer-links{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rightbar{right:8px;width:min(360px,calc(100vw - 16px));padding:18px 15px}
  .chat-messages{min-height:90px}
  .message-content,.chat-copy{font-size:13px}
}
@media(max-width:360px){
  .main{padding-inline:13px}
  .topbar{display:grid;grid-template-columns:minmax(0,1fr);gap:9px;align-items:start}
  .topbar>div:first-child{min-width:0;gap:6px!important}
  .breadcrumb{min-width:0;font-size:12px}
  .breadcrumb>span{padding-inline:3px!important}
  .top-actions{width:100%;justify-content:flex-end;gap:6px}
  .top-actions>#searchButton,.top-actions>#notificationButton{display:none}
  #authButton{min-width:54px;min-height:34px;padding:0 7px;font-size:12px}
  #languageButton{justify-content:center;width:38px;min-width:38px;min-height:34px;padding:3px}
  #languageButton #selectedLanguage,#languageButton .chevron{display:none}
  .sidebar{width:calc(100vw - 24px);max-width:calc(100vw - 16px)}
  .nav-btn{min-width:0;width:100%;gap:8px;padding-inline:8px;font-size:12px}
  .streak-week{gap:3px}
  .day{min-width:0}
  .day i{width:min(24px,100%);height:20px}
  .sidebar-footer-links{grid-template-columns:repeat(2,minmax(0,1fr));gap:4px}
  .sidebar-footer-links a{overflow-wrap:anywhere;font-size:12px}
  .sidebar-footer-links svg{width:14px;height:14px}
  .app.sidebar-collapsed .sidebar-footer-links{grid-template-columns:1fr}
}
@media(max-height:620px){.rightbar .tutor-card{display:none}.rightbar .quick-exam{padding:9px;margin-top:8px}.rightbar .chat-messages{min-height:70px}}
@media(prefers-reduced-motion:reduce){.sidebar,.sidebar-backdrop,.sidebar-footer-links a,html.theme-transition body,html.theme-transition body *{transition:none!important}}
body.sidebar-open{overflow:hidden}
.sidebar-close{display:none;place-items:center;flex:none;width:30px;height:30px;padding:0;border:1px solid var(--line);border-radius:5px;color:var(--muted);background:var(--raised)}
.sidebar-close svg{width:16px;height:16px}
.sidebar-close:hover{color:var(--ink);border-color:var(--line2)}
.sidebar-footer-links a:focus-visible{color:var(--ink);background:var(--raised)}
@media(max-width:760px){.brand{width:100%;padding-inline:7px;margin-bottom:27px}.brand-name{font-size:16px}.sidebar-close{display:grid;margin-left:auto}}
@media(prefers-reduced-motion:reduce){.sidebar-close{transition:none}}

/* Keep the mobile tutor drawer state in sync with its controller. */
@media(max-width:1200px){
  .rightbar.mobile-tutor-open{transform:translateX(0)}
  .mobile-tutor-backdrop.open{position:fixed;z-index:14;inset:0;display:block;background:rgba(0,0,0,.52);backdrop-filter:blur(2px)}
}
@media(min-width:1201px){.mobile-tutor-backdrop,.mobile-tutor-toggle{display:none!important}}
body[data-theme="light"]{background-color:var(--canvas)}

/* Nova replies use readable editorial text and one dark terminal treatment for code. */
.message.bot{min-width:0}
.message-content{min-width:0}
.chat-copy{margin:0;color:var(--muted);font-size:13px;line-height:1.75;overflow-wrap:anywhere}
.chat-copy+.chat-copy,.chat-code-frame+.chat-copy,.chat-list+.chat-copy{margin-top:11px}
.chat-heading{margin:15px 0 7px;color:var(--ink);font-size:14px;font-weight:650;line-height:1.35;letter-spacing:-.025em}
.message-content>.chat-heading:first-child{margin-top:0}
.chat-list{display:grid;gap:6px;margin:9px 0 4px;padding-left:21px;color:var(--muted);font-size:12px;line-height:1.65}
.chat-list li{padding-left:3px}
.chat-list li::marker{color:var(--accent)}
.chat-quote{margin:10px 0;padding:8px 11px;border-left:2px solid var(--cyan);color:var(--muted);background:var(--accent-soft);font-size:12px;line-height:1.65}
.chat-inline-code{padding:1px 4px;border:1px solid var(--line2);border-radius:3px;color:var(--ink);background:var(--raised);font:12px/1.5 var(--mono);overflow-wrap:anywhere}
.chat-code-frame{max-width:100%;margin:12px 0 4px;border-color:var(--line2);border-radius:6px;background:#090a0d}
.chat-code-head{min-height:32px;color:#a7acb6;font-size:12px}
.chat-code-frame pre{max-height:240px;overflow:auto;overscroll-behavior:contain;color:#eff0f3;font-size:12px;line-height:1.7;white-space:pre;overflow-wrap:normal;word-break:normal}
.chat-copy-button{min-width:67px;min-height:26px;color:#d5d7de}
.chat-copy-button:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.message.bot.chat-error .message-content{color:inherit}
.chat-welcome .message-content{color:var(--muted)}
@media(max-width:760px){
  .rightbar{padding:15px 13px}
  .rightbar .tutor-card{padding:11px}
  .rightbar .chat-area{margin-top:13px}
  .rightbar .chat-messages{min-height:80px;padding-inline:1px}
  .rightbar .message.bot{padding:11px}
  .rightbar .message-content,.rightbar .chat-copy{font-size:13px}
  .rightbar .chat-list{font-size:12px}
  .rightbar .chat-code-frame pre{max-height:30vh;padding:10px;font-size:12px}
}
@media(prefers-reduced-motion:reduce){.rightbar,.mobile-tutor-backdrop{transition:none!important;backdrop-filter:none!important}}

/* Navigation and coach are separate work surfaces with their own visual rhythm. */
.app{grid-template-columns:248px minmax(0,1fr) 356px}
.app.sidebar-collapsed{grid-template-columns:68px minmax(0,1fr) 356px}
.sidebar{
  padding:24px 15px 15px;
  border-right-color:rgba(255,255,255,.085);
  background:linear-gradient(180deg,rgba(255,255,255,.026),transparent 230px),rgba(13,14,18,.97);
  backdrop-filter:blur(18px) saturate(130%);
}
.brand{position:relative;padding:0 7px 18px;margin-bottom:22px;border-bottom:1px solid var(--line)}
.brand-mark{width:35px;height:35px;border-radius:6px;background:linear-gradient(145deg,#1b1d23,#0d0e12)}
.brand-name{font-size:19px;letter-spacing:-.06em}
.nav-label{margin:0 0 9px;padding:0 9px;color:var(--quiet);font-size:12px;letter-spacing:.16em}
.nav{gap:4px}
.nav-btn{position:relative;min-height:41px;padding:0 10px;border-radius:5px;font-size:12px;letter-spacing:-.01em}
.nav-btn svg{width:17px;height:17px;stroke-width:1.6;transition:color .18s ease,transform .18s ease}
.nav-btn:hover svg{transform:translateX(1px)}
.nav-btn.active{border-color:rgba(245,158,11,.18);background:linear-gradient(90deg,rgba(245,158,11,.085),rgba(245,158,11,.018) 78%,transparent);box-shadow:inset 0 1px 0 rgba(255,255,255,.045)}
.nav-btn.active::before{position:absolute;top:8px;bottom:8px;left:-1px;width:2px;border-radius:2px;background:var(--accent);content:"";animation:nav-marker-in .22s ease both}
.nav-pill{font-size:12px}
.side-rule{margin:15px 8px 17px}
.streak-card{margin-top:auto;padding:13px 3px 12px;border:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);border-radius:0;background:transparent;box-shadow:none}
.streak-top{gap:8px;font-size:12px}
.streak-top:before{display:none}
.streak-mark{display:grid;place-items:center;width:25px;height:25px;border:1px solid rgba(16,185,129,.25);border-radius:5px;color:var(--signal);background:rgba(16,185,129,.06);font:var(--fs-xs) var(--mono)}
.streak-card p{max-width:205px;margin:8px 0 10px;font-size:12px;line-height:1.55}
.streak-week{gap:5px}
.day{flex:1;gap:5px;font-size:12px}
.day i{width:100%;height:23px;border-radius:4px;font-size:12px}
.day.today i{border-color:rgba(16,185,129,.5);color:var(--signal)}
.profile{gap:10px;margin-top:0;padding:13px 3px 0;border-top:0}
.avatar{width:35px;height:35px;border-radius:6px}
.profile-text b{font-size:12px}
.profile-text span{margin-top:2px;font-size:12px;letter-spacing:.04em}
.more{width:27px;height:27px;border:1px solid transparent;border-radius:4px;font-size:14px}
.more:hover{border-color:var(--line);color:var(--ink);background:var(--raised)}
.sidebar-footer-links{gap:4px 8px;padding-top:10px;margin-top:9px;border-top:1px solid var(--line)}
.sidebar-footer-links a{min-height:29px;padding:5px 6px;font-size:12px}
.sidebar-footer-links svg{width:14px;height:14px}
.app.sidebar-collapsed .sidebar{padding:21px 9px 14px}
.app.sidebar-collapsed .brand{padding-bottom:14px;margin-bottom:21px}
.app.sidebar-collapsed .brand-mark{width:37px;height:37px}
.app.sidebar-collapsed .nav-btn{width:46px;min-height:45px}
.app.sidebar-collapsed .streak-card{width:48px;margin-top:auto;padding:8px 4px;border:0}
.app.sidebar-collapsed .streak-mark{width:30px;height:30px}
.app.sidebar-collapsed .sidebar-footer-links{gap:3px}
.app.sidebar-collapsed .sidebar-footer-links a{width:40px;height:36px}

.rightbar{
  padding:21px 17px 15px;
  border-left-color:rgba(255,255,255,.085);
  background:linear-gradient(180deg,rgba(255,255,255,.025),transparent 260px),rgba(13,14,18,.96);
  backdrop-filter:blur(18px) saturate(130%);
}
.right-head{justify-content:flex-start;min-height:46px;margin:0 0 13px;padding:0 0 13px;border-bottom:1px solid var(--line)}
.nova-heading{display:flex;align-items:center;gap:10px;min-width:0}
.nova-mark{display:grid;place-items:center;flex:none;width:34px;height:34px;border:1px solid rgba(6,182,212,.26);border-radius:6px;color:var(--cyan);background:linear-gradient(145deg,rgba(6,182,212,.1),rgba(6,182,212,.025));font:600 12px var(--mono);box-shadow:inset 0 1px 0 rgba(255,255,255,.08)}
.nova-name{display:grid;gap:2px}
.nova-name>b{color:var(--ink);font-size:14px;letter-spacing:-.025em}
.nova-name>small{color:var(--quiet);font:12px var(--mono);letter-spacing:.12em}
.online{gap:6px;margin-left:auto;font-size:12px;letter-spacing:.1em}
.online i{width:6px;height:6px}
.tutor-close{margin-left:auto}
.tutor-card{position:relative;display:grid;gap:7px;padding:10px 11px;border:1px solid var(--line);border-left:2px solid rgba(6,182,212,.55);border-radius:5px;background:linear-gradient(100deg,rgba(6,182,212,.045),transparent 62%),rgba(18,20,26,.6);box-shadow:inset 0 1px 0 rgba(255,255,255,.055);text-align:left}
.tutor-card:before{display:none}
.tutor-context-label{color:var(--quiet);font:12px var(--mono);letter-spacing:.14em}
.tutor-context-row{display:flex;align-items:center;gap:7px;min-width:0;color:var(--muted);font-size:12px}
.tutor-context-row .context-led{width:6px;height:6px;flex:none;border-radius:50%;background:var(--signal);box-shadow:0 0 0 3px rgba(16,185,129,.08)}
.tutor-context-row>b{color:var(--ink);font-size:12px}
.tutor-context-row>span:not(.context-led):not(.context-arrow){overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.context-arrow{margin-left:auto;color:var(--quiet);font:var(--fs-xs) var(--mono)}
.chat-area{min-height:0;margin-top:10px}
.chat-title-row{align-items:center;margin:0 0 7px;padding:0 1px}
.chat-title-row>div{display:flex;align-items:center;gap:8px}
.chat-section-number{color:var(--cyan);font:var(--fs-xs) var(--mono)}
.chat-title-row .chat-title{margin:0;color:var(--muted);font-size:12px;letter-spacing:.13em}
.chat-clear{min-height:26px;padding:0 8px;color:var(--muted);font-size:12px}
.chat-messages{flex:1;min-height:110px;max-height:none;gap:8px;padding:4px 2px 9px;border-top:1px solid rgba(255,255,255,.045);scrollbar-color:rgba(142,146,159,.25) transparent;scrollbar-width:thin}
.message.bot{padding:10px 11px;border:0;border-left:2px solid rgba(6,182,212,.55);border-radius:0 5px 5px 0;background:linear-gradient(90deg,rgba(6,182,212,.045),transparent 90%);box-shadow:none}
.message.bot.chat-welcome{padding-top:12px;padding-bottom:12px}
.message.user{padding:9px 11px;border-color:var(--line2);border-radius:6px;background:var(--raised);box-shadow:inset 0 1px 0 rgba(255,255,255,.045)}
.message-meta{margin-bottom:7px}
.message-tag{font-size:12px}
.message-content,.chat-copy{font-size:12px;line-height:1.7}
.chat-heading{margin:11px 0 5px;font-size:13px}
.chat-list{gap:4px;margin-block:7px;font-size:12px}
.chat-code-frame{margin:9px 0 2px}
.suggestion-area{margin-top:10px;padding-top:9px;border-top:1px solid var(--line)}
.suggestion-heading{display:flex;justify-content:space-between;gap:8px;margin:0 1px 4px;color:var(--muted);font-size:12px}
.suggestion-heading>span:last-child{color:var(--quiet);font:12px var(--mono);letter-spacing:.1em}
.suggestions{display:grid;gap:0;margin:0}
.suggestion{display:flex;align-items:center;gap:9px;min-height:34px;padding:4px 3px;border:0;border-bottom:1px solid rgba(255,255,255,.045);border-radius:0;color:var(--muted);background:transparent;text-align:left;font-size:12px;transition:color .18s ease,background-color .18s ease,padding .18s ease}
.suggestion:last-child{border-bottom:0}
.suggestion:hover{padding-left:7px;border-color:rgba(255,255,255,.06);color:var(--ink);background:linear-gradient(90deg,rgba(255,255,255,.035),transparent)}
.suggestion-mark{width:20px;color:var(--quiet);font:var(--fs-xs) var(--mono)}
.suggestion-arrow{margin-left:auto;color:var(--quiet);font:12px var(--mono);opacity:0;transform:translate(-3px,3px);transition:opacity .18s ease,transform .18s ease}
.suggestion:hover .suggestion-arrow{opacity:1;transform:translate(0,0)}
.chat-input-wrap{align-items:flex-end;margin-top:11px;padding:6px;border-color:var(--line2);border-radius:6px;background:rgba(8,8,10,.72);box-shadow:inset 0 1px 0 rgba(255,255,255,.055)}
.chat-input-wrap:focus-within{border-color:rgba(6,182,212,.55);box-shadow:inset 0 1px 0 rgba(255,255,255,.06),0 0 0 2px rgba(6,182,212,.08)}
.chat-input{min-height:38px;padding:8px;font-size:12px;line-height:1.5}
.chat-input::placeholder{color:var(--quiet)}
.send-button{width:34px;height:34px;border-color:rgba(245,158,11,.35);border-radius:5px;color:#111;background:var(--accent)}
.chat-foot{align-items:center;margin:7px 2px 0;font-size:12px}
#chatProviderState{color:var(--signal);white-space:nowrap}
.chat-foot>span:last-child{text-align:right}
.quick-exam{display:grid;grid-template-columns:29px minmax(0,1fr);align-items:center;gap:2px 9px;margin:11px 0 0;padding:13px 0 0;border:0;border-top:1px solid var(--line);border-radius:0;background:transparent;box-shadow:none}
.quick-exam-mark{display:grid;grid-row:1;place-items:center;width:27px;height:27px;border:1px solid rgba(245,158,11,.22);border-radius:5px;color:var(--accent);background:rgba(245,158,11,.045);font:var(--fs-xs) var(--mono)}
.quick-exam-copy{display:grid;gap:3px;min-width:0}
.quick-exam-copy>b{font-size:12px}
.quick-exam-copy>span{color:var(--muted);font-size:12px;line-height:1.45}
.exam-button{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;min-height:34px;margin-top:8px;padding:0 10px;border:1px solid rgba(245,158,11,.26);border-radius:5px;color:var(--accent);background:rgba(245,158,11,.055);font-size:12px;text-align:left}
.exam-button:hover{border-color:rgba(245,158,11,.5);background:rgba(245,158,11,.1)}
.exam-button span{font:12px var(--mono);transition:transform .18s ease}
.exam-button:hover span{transform:translateX(3px)}
.sidebar,.rightbar{scrollbar-width:thin;scrollbar-color:rgba(142,146,159,.18) transparent}
@keyframes nav-marker-in{from{transform:scaleY(.35);opacity:.35}to{transform:scaleY(1);opacity:1}}
@media(min-width:1201px){.rightbar{width:auto}}
@media(max-width:1200px){
  .app{grid-template-columns:218px minmax(0,1fr)}
  .app.sidebar-collapsed{grid-template-columns:68px minmax(0,1fr)}
  .rightbar{right:12px;width:min(390px,calc(100vw - 24px));padding:20px 17px 15px}
}
@media(max-width:760px){
  .sidebar{width:min(294px,calc(100vw - 24px));padding:20px 15px 14px}
  .app .sidebar{border-radius:7px}
  .rightbar{top:8px;right:8px;bottom:8px;width:calc(100vw - 16px);padding:17px 15px 14px;border-radius:7px}
  .rightbar .chat-messages{min-height:90px}
  .rightbar .quick-exam{margin-top:9px;padding-top:10px}
}
@media(max-height:650px){.rightbar .tutor-card{padding:7px 10px}.rightbar .suggestion{min-height:30px}.rightbar .quick-exam{margin-top:7px;padding-top:8px}.rightbar .exam-button{min-height:30px;margin-top:5px}}
@media(prefers-reduced-motion:reduce){.nav-btn.active::before,.suggestion-arrow,.exam-button span{animation:none!important;transition:none!important}.nav-btn:hover svg{transform:none}}
body[data-theme="light"] .sidebar{background:linear-gradient(180deg,rgba(20,22,26,.018),transparent 230px),rgba(255,255,255,.97)}
body[data-theme="light"] .rightbar{background:linear-gradient(180deg,rgba(20,22,26,.018),transparent 260px),rgba(255,255,255,.97)}
body[data-theme="light"] .brand-mark{background:linear-gradient(145deg,#fff,#f0f0ed)}
body[data-theme="light"] .tutor-card{border-left-color:var(--cyan);background:linear-gradient(100deg,rgba(8,121,141,.055),transparent 62%),#fff}
body[data-theme="light"] .nova-mark{border-color:rgba(8,121,141,.24);background:rgba(8,121,141,.045)}
body[data-theme="light"] .chat-input-wrap{background:rgba(255,255,255,.92);box-shadow:inset 0 1px 0 rgba(20,22,26,.04)}
body[data-theme="light"] .chat-input-wrap:focus-within{border-color:rgba(8,121,141,.58);box-shadow:inset 0 1px 0 rgba(20,22,26,.04),0 0 0 2px rgba(8,121,141,.09)}
body[data-theme="light"] .chat-input::placeholder{color:var(--quiet)}
.refund-email-retry{min-height:31px;padding:5px 8px;font-size:12px}
.owner-security-tools{display:grid;gap:14px;margin:22px 0 28px;padding:16px;border:1px solid var(--line);border-radius:8px;background:linear-gradient(180deg,rgba(255,255,255,.025),transparent 65%),#0d0e12;box-shadow:inset 0 1px 0 rgba(255,255,255,.07)}
.owner-security-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.owner-admin-actions,.support-ticket-admin-controls{display:flex;flex-wrap:wrap;align-items:end;gap:8px}
.owner-security-tools .admin-table td{white-space:pre-line;overflow-wrap:anywhere}
.owner-security-tools #siteAdminRows tr{cursor:pointer}
.owner-security-tools #siteAdminRows tr.is-selected{background:rgba(245,158,11,.09)}
.support-ticket-section{display:grid;gap:14px;margin:20px 0 26px;padding:18px;border:1px solid var(--line);border-radius:8px;background:linear-gradient(180deg,rgba(255,255,255,.025),transparent 55%),#0d0e12;box-shadow:inset 0 1px 0 rgba(255,255,255,.07)}
.support-ticket-head,.support-inbox-head,.support-ticket-card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}
.support-ticket-head h2,.support-inbox-head h2{margin:4px 0 7px;color:var(--ink);font-size:clamp(21px,3vw,28px);letter-spacing:-.04em}
.support-ticket-head p:not(.page-eyebrow),.support-inbox-head p:not(.page-eyebrow){max-width:670px;margin:0;color:var(--muted);font-size:13px;line-height:1.65}
.support-ticket-form,.support-ticket-reply{display:grid;gap:10px}
.support-ticket-form label,.support-ticket-reply label,.support-ticket-admin-controls label{display:grid;gap:6px;color:var(--muted);font-size:12px}
.support-ticket-form input,.support-ticket-form textarea,.support-ticket-reply textarea,.support-ticket-admin-controls select{width:100%;min-height:40px;padding:10px;border:1px solid var(--line2);border-radius:5px;color:var(--ink);background:#090a0d;font:12px/1.55 var(--sans)}
.support-ticket-form textarea,.support-ticket-reply textarea{resize:vertical}
.support-ticket-form input:focus-visible,.support-ticket-form textarea:focus-visible,.support-ticket-reply textarea:focus-visible,.support-ticket-admin-controls select:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.support-ticket-list,.support-inbox-list{display:grid;gap:11px}
.support-ticket-card{display:grid;gap:12px;padding:14px;border:1px solid var(--line);border-radius:7px;background:rgba(8,8,10,.52);box-shadow:inset 0 1px 0 rgba(255,255,255,.055)}
.support-ticket-card h3{margin:0;color:var(--ink);font-size:15px;letter-spacing:-.025em}
.support-ticket-meta{margin:5px 0 0;color:var(--quiet);font:12px/1.5 var(--mono);overflow-wrap:anywhere}
.support-ticket-state{flex:0 0 auto;padding:4px 7px;border:1px solid var(--line2);border-radius:4px;color:var(--muted);font:12px var(--mono);letter-spacing:.08em}
.support-ticket-state.is-open{border-color:rgba(245,158,11,.32);color:var(--accent)}
.support-ticket-state.is-waiting{border-color:rgba(6,182,212,.32);color:var(--cyan)}
.support-ticket-state.is-resolved{border-color:rgba(16,185,129,.32);color:var(--signal)}
.support-ticket-messages{display:grid;gap:8px}
.support-ticket-message{display:grid;grid-template-columns:1fr auto;gap:4px 12px;padding:10px;border-left:2px solid var(--line2);background:rgba(255,255,255,.018)}
.support-ticket-message.is-admin{border-left-color:var(--cyan);background:rgba(6,182,212,.035)}
.support-ticket-message>b{color:var(--ink);font-size:12px}
.support-ticket-message>time{color:var(--quiet);font:var(--fs-xs) var(--mono)}
.support-ticket-message>p{grid-column:1/-1;margin:0;color:var(--muted);font-size:12px;line-height:1.65;white-space:pre-wrap;overflow-wrap:anywhere}
.support-ticket-admin-controls{justify-content:space-between}
.support-ticket-admin-controls label{min-width:140px;flex:1}
.support-inbox{display:grid;gap:14px;padding:16px;border:1px solid var(--line);border-radius:8px;background:linear-gradient(180deg,rgba(255,255,255,.025),transparent 65%),#0d0e12;box-shadow:inset 0 1px 0 rgba(255,255,255,.07)}
.support-ticket-reply .subtle-button{justify-self:start}
.support-ticket-section [hidden],.support-inbox [hidden]{display:none!important}
.coach-demo-foot .coach-preview-signin{min-height:20px;padding:1px 5px;border:1px solid rgba(245,158,11,.3);border-radius:3px;color:var(--accent);background:transparent;font:inherit}
.coach-message.is-error{border-color:rgba(248,113,113,.26);color:#fca5a5}
@media(max-width:760px){.owner-security-grid{grid-template-columns:minmax(0,1fr)}.support-ticket-head,.support-inbox-head,.support-ticket-card-head{align-items:flex-start;flex-direction:column}.support-ticket-section,.support-inbox{padding:13px}.support-ticket-message{grid-template-columns:minmax(0,1fr)}.support-ticket-message>time{grid-row:2}.support-ticket-message>p{grid-column:1}}

.plans-payment-copy{margin:8px 0 0;color:var(--accent);font:500 12px/1.55 var(--mono)}

.guest-signup-panel{display:grid;gap:10px;margin-top:18px;padding:16px;border:1px solid rgba(245,158,11,.4);border-radius:7px;background:linear-gradient(135deg,rgba(245,158,11,.07),transparent 55%),var(--panel)}.guest-signup-panel h2{margin:0;color:var(--ink);font-size:20px;letter-spacing:-.035em}.guest-signup-panel p{margin:0;color:var(--muted);font-size:13px;line-height:1.6}.guest-signup-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:3px}.guest-signup-actions button{min-height:40px;padding:0 13px}

.plan-static-summary,.plan-error,.refund-summary,.refund-form-guidance,.refund-address-warning,.checkout-help{color:var(--muted);font-size:13px;line-height:1.65}.plan-static-summary,.plan-error{max-width:760px;margin:12px 0;padding:14px;border:1px solid var(--line);border-radius:6px;background:var(--panel)}.plan-retry{min-height:40px;margin:0 0 12px}.refund-summary a,.checkout-help a{color:#f3c56d;text-underline-offset:3px}.refund-original-address{display:grid;gap:7px;padding:10px;border:1px solid var(--line);border-radius:5px;background:var(--raised)}.refund-original-address[hidden],.refund-address-warning:empty{display:none}.refund-original-address>span{color:var(--quiet);font:12px/1.4 var(--mono);letter-spacing:.08em}.refund-original-address code{overflow-wrap:anywhere;color:var(--ink);font:12px/1.5 var(--mono)}.refund-form-guidance{margin:0}.refund-address-warning{margin:0;color:#f3c56d}.checkout-help{margin:5px 0 0;padding:10px;border-left:2px solid var(--accent);background:rgba(245,158,11,.045)}.checkout-help code{color:var(--ink);font-family:var(--mono)}

@media(max-width:760px){button,select{min-height:40px}.icon-button,.send-button,.welcome-theme{width:40px;min-width:40px;height:40px;min-height:40px}.welcome-nav-actions button{min-height:40px}.nav-btn,.rank-button,.answer-option,.exam-button,.subtle-button,.solid-button,.danger-button,.theme-option{min-height:40px}.mobile-tutor-toggle{min-height:40px}.welcome-course-card button,.welcome-courses-foot button{min-height:40px}.welcome-footer .footer-links a,.standalone-footer nav a,.standalone-nav nav a{display:inline-flex;align-items:center;min-height:40px}.chat-input{font-size:12px}.cursor-glow{display:none}}@media(pointer:coarse){.cursor-glow{display:none}}


/* Readable contrast and comfortable touch targets on small screens. */
@media (max-width: 760px) {
  button, [role="button"], [role="option"], select,
  input:not([type="checkbox"]):not([type="radio"]), textarea, summary {
    min-height: 40px;
  }
  .icon-button, .welcome-theme, .theme-toggle, #chatSend, .chat-send,
  .menu-button, .close-modal, .checkout-close, .checkout-picker-trigger {
    min-width: 40px;
    min-height: 40px;
  }
  .nav-btn { min-height: 44px; }
  .footer-links a, .sidebar-footer-links a {
    display: inline-flex;
    align-items: center;
    min-height: 40px;
  }
}
@media (pointer: coarse) {
  #cursorGlow { display: none !important; }
}

/* Learner comfort and weekly activity controls. */
html.user-reduce-motion,html.user-reduce-motion *{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
body[data-readable-font="true"]{--sans:Arial,"Atkinson Hyperlegible",Verdana,system-ui,sans-serif}
body[data-display-size="large"]{zoom:1.08}
body[data-display-size="extra-large"]{zoom:1.16}
.retention-weekly{display:grid;gap:12px;margin:18px 0;padding:16px;border:1px solid var(--line);border-radius:7px;background:linear-gradient(115deg,rgba(6,182,212,.045),transparent 58%),var(--panel);box-shadow:inset 0 1px 0 rgba(255,255,255,.07)}
.retention-weekly-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.retention-weekly-head h2{margin:2px 0 0;font-size:20px;letter-spacing:-.035em}
.retention-freeze{padding:5px 7px;border:1px solid rgba(16,185,129,.3);border-radius:4px;color:var(--signal);font:12px/1.35 var(--mono);letter-spacing:.04em}
.retention-weekly-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:1px solid var(--line);border-radius:5px;background:rgba(255,255,255,.015)}
.retention-weekly-grid>div{display:grid;gap:3px;padding:11px 13px}
.retention-weekly-grid>div+div{border-left:1px solid var(--line)}
.retention-weekly-grid b{font:600 20px/1.2 var(--mono);font-variant-numeric:tabular-nums;color:var(--ink)}
.retention-weekly-grid span,.retention-weekly>p{margin:0;color:var(--muted);font-size:12px;line-height:1.5}
.retention-setting-row{align-items:flex-start}
.retention-setting-row>div:first-child{flex:1;min-width:0}
.retention-setting-row>select,.retention-select-pair select{min-height:40px;padding:7px 10px;border:1px solid var(--line2);border-radius:5px;color:var(--ink);background:var(--raised);font-size:12px}
.retention-select-pair{display:flex;flex-wrap:wrap;gap:7px}
.retention-toggle{display:flex;align-items:center;gap:8px;min-height:40px;color:var(--muted);font-size:12px;cursor:pointer}
.retention-toggle input{width:16px;height:16px;accent-color:var(--signal)}
.retention-link{white-space:nowrap;text-decoration:none}
.practice-tools-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:20px 0}
.practice-tools-heading{grid-column:1/-1;display:grid;gap:5px}
.practice-tools-heading .page-eyebrow,.practice-tools-heading h2,.practice-tools-heading p{margin:0}
.practice-tools-heading h2{font-size:clamp(20px,2vw,25px);letter-spacing:-.04em}
.practice-tools-heading>p:last-child{color:var(--muted);font-size:13px;line-height:1.6}
.practice-tool-card{display:grid;align-content:start;gap:9px;padding:15px;border:1px solid var(--line);border-radius:7px;background:linear-gradient(150deg,rgba(255,255,255,.035),transparent 65%),var(--panel);box-shadow:inset 0 1px 0 rgba(255,255,255,.07)}
.practice-tool-index{color:var(--cyan);font:12px/1.4 var(--mono);letter-spacing:.1em}
.practice-tool-card h3{margin:0;font-size:16px;letter-spacing:-.03em}
.practice-tool-card p{min-height:42px;margin:0;color:var(--muted);font-size:13px;line-height:1.6}
.practice-tool-card button{justify-self:start;min-height:40px}
.error-trainer-trace{overflow:auto;margin:10px 0;padding:13px;border:1px solid var(--line);border-left:2px solid var(--danger);border-radius:5px;background:#08090b;color:#f1b6b4;font:12px/1.65 var(--mono);white-space:pre-wrap}
.error-trainer-fix{display:grid;gap:9px;margin-top:12px;padding:13px;border:1px solid var(--line);border-radius:6px;background:var(--panel)}
.error-trainer-fix>b,.error-trainer-fix>label{color:var(--muted);font:12px/1.5 var(--mono);letter-spacing:.08em;text-transform:uppercase}
.error-trainer-fix>p{margin:0;color:var(--muted);font-size:13px;line-height:1.6}
.error-trainer-fix textarea{min-height:128px;width:100%;padding:12px;border:1px solid var(--line2);border-radius:5px;color:var(--ink);background:#090a0d;font:12px/1.6 var(--mono);resize:vertical}
.error-trainer-fix .project-runner{min-height:132px}
.glossary-wrap{position:relative;display:inline}
.glossary-term{min-height:0;padding:0;border:0;border-bottom:1px dotted var(--accent);color:inherit;background:transparent;font:inherit;text-decoration:none;text-underline-offset:3px;cursor:help}
.glossary-term:hover,.glossary-term:focus-visible{color:var(--accent)}
.glossary-tooltip{position:absolute;z-index:100;left:0;top:calc(100% + 8px);width:min(260px,calc(100vw - 48px));padding:10px 11px;border:1px solid rgba(6,182,212,.3);border-radius:5px;background:rgba(14,15,20,.96);box-shadow:0 14px 38px rgba(0,0,0,.42);color:var(--ink);font-size:12px;line-height:1.55}
.glossary-tooltip[hidden]{display:none}
.glossary-term:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
body[data-theme="light"] .glossary-tooltip{background:rgba(255,255,255,.98);color:#17181b}
@media(max-width:620px){.retention-weekly{padding:13px}.retention-weekly-grid>div{padding:9px}.retention-weekly-grid span{max-width:10ch}.retention-setting-row{flex-direction:column;align-items:stretch}.retention-link{align-self:flex-start}}
@media(max-width:620px){.practice-tools-grid{grid-template-columns:minmax(0,1fr)}.practice-tools-heading{grid-column:auto}.practice-tool-card p{min-height:0}.glossary-tooltip{position:fixed;left:16px;right:16px;top:auto;bottom:16px;width:auto}}

.project-access-note{display:flex;align-items:flex-start;gap:10px;margin:14px 0 16px;padding:11px 13px;border:1px solid var(--line);border-left:2px solid var(--cyan);background:rgba(6,182,212,.035);color:var(--muted);font-size:13px;line-height:1.55}
.project-access-led{flex:0 0 6px;width:6px;height:6px;margin-top:6px;border-radius:50%;background:var(--cyan)}
.project-workbench{overflow:hidden;border:1px solid var(--line2);border-radius:7px;background:linear-gradient(180deg,rgba(255,255,255,.025),transparent 20%),var(--panel);box-shadow:inset 0 1px 0 rgba(255,255,255,.07)}
.project-workbench-head{display:flex;justify-content:space-between;align-items:flex-start;gap:14px;padding:17px 18px;border-bottom:1px solid var(--line)}
.project-workbench-head h2{margin:4px 0 0;color:var(--ink);font-size:24px;letter-spacing:-.04em}
.project-lock-state{flex:0 0 auto;padding:5px 8px;border:1px solid var(--line2);border-radius:4px;color:var(--muted);font:12px var(--mono);letter-spacing:.09em}
.project-workbench.is-unlocked .project-lock-state{border-color:rgba(16,185,129,.45);color:var(--signal)}
.project-layout{display:grid;grid-template-columns:minmax(230px,.72fr) minmax(0,1.28fr);gap:0}
.project-brief,.project-editor{min-width:0;padding:18px}
.project-brief{border-right:1px solid var(--line)}
.project-brief h3{margin:0 0 12px;font-size:15px}
.project-brief ol{display:grid;gap:10px;margin:0;padding-left:24px;color:var(--muted);font-size:13px;line-height:1.55}
.project-example{margin-top:20px;border:1px solid var(--line);border-radius:5px;background:rgba(0,0,0,.2)}
.project-example>span{display:block;padding:9px 10px;border-bottom:1px solid var(--line);color:var(--quiet);font:12px var(--mono);letter-spacing:.08em}
.project-example pre{margin:0;padding:11px;color:var(--ink);font:12px/1.6 var(--mono);white-space:pre-wrap}
.project-brief>p,.project-server-note{color:var(--muted);font-size:12px;line-height:1.55}
.project-editor{display:grid;align-content:start;gap:9px}
.project-editor>label{display:flex;justify-content:space-between;gap:10px;color:var(--muted);font:12px var(--mono);letter-spacing:.09em}
.project-editor>label span{color:var(--quiet)}
.project-editor textarea{width:100%;min-height:230px;resize:vertical;padding:12px;border:1px solid var(--line2);border-radius:5px;background:#08090b;color:var(--ink);font:12px/1.65 var(--mono);tab-size:4}
.project-editor textarea:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.project-run-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.project-run-row [role=status]{min-width:0;flex:1;color:var(--muted);font-size:12px;line-height:1.5}
.project-run-row [role=status].is-good{color:var(--signal)}
.project-run-row [role=status].is-error{color:#fca5a5}
.project-runner{display:block;width:100%;height:210px;border:1px solid var(--line);border-radius:5px;background:#08080a}
.project-share-button{justify-self:start}
.project-editor .project-server-note{margin:0}
@media(max-width:760px){.project-layout{grid-template-columns:minmax(0,1fr)}.project-brief{border-right:0;border-bottom:1px solid var(--line)}.project-workbench-head,.project-brief,.project-editor{padding:14px}.project-runner{height:190px}}

.hint-example-code{overflow:auto;margin:9px 0;padding:10px;border:1px solid var(--line);border-radius:4px;background:#08090b;color:var(--ink);font:12px/1.6 var(--mono);white-space:pre-wrap}
.hint-example-result{margin:5px 0 0;color:var(--muted);font-size:12px;line-height:1.55}
.hint-example-result code{color:var(--signal);font-family:var(--mono)}
.lab-hint-panel{margin:10px;padding:11px 12px;border-left:2px solid var(--cyan);background:rgba(6,182,212,.04);color:var(--muted);font-size:12px;line-height:1.6}
.lab-hint-panel b{color:var(--cyan);font:12px var(--mono);letter-spacing:.1em}
.lab-hint-panel p{margin:7px 0 0}
.tutor-coach-boundary{margin:7px 0 0;padding-top:7px;border-top:1px solid var(--line);color:var(--muted);font-size:12px;line-height:1.45}
a:visited,.welcome-brand{color:var(--ink)}
.billing-receipt-link{display:inline-flex;align-items:center;min-height:40px;padding:0 9px;border:1px solid var(--line2);border-radius:4px;color:var(--ink);font-size:12px;text-decoration:none}
.billing-receipt-link:hover{border-color:var(--accent);color:var(--accent)}
.receipt-main{max-width:860px}
.receipt-main h1{margin:4px 0 6px;font-size:clamp(30px,5vw,46px);letter-spacing:-.055em}
.receipt-status{color:var(--muted);font-size:13px;line-height:1.6}
.receipt-card{margin-top:20px;padding:clamp(16px,3vw,26px);border:1px solid var(--line2);border-radius:7px;background:linear-gradient(150deg,rgba(255,255,255,.035),transparent 50%),var(--panel);box-shadow:inset 0 1px 0 rgba(255,255,255,.07)}
.receipt-card>header{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.receipt-card>header>div{display:grid;gap:5px}
.receipt-card>header span:first-child{color:var(--muted);font:12px var(--mono);letter-spacing:.12em}
.receipt-card>header b{font:600 18px var(--mono);font-variant-numeric:tabular-nums}
.receipt-state{padding:5px 8px;border:1px solid var(--line2);border-radius:4px;color:var(--muted);font:12px var(--mono)}
.receipt-card dl{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 24px;margin:0}
.receipt-card dl>div{display:grid;gap:4px;padding:12px 0;border-bottom:1px solid var(--line)}
.receipt-card dt{color:var(--muted);font-size:12px}
.receipt-card dd{margin:0;color:var(--ink);font-size:13px;overflow-wrap:anywhere}
.receipt-note{margin:14px 0 0;padding:10px 12px;border-left:2px solid var(--cyan);background:rgba(6,182,212,.045);color:var(--muted);font-size:12px;line-height:1.6}
.receipt-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:13px}
.receipt-actions[hidden],.receipt-actions button[hidden]{display:none}
@media(max-width:540px){.receipt-card dl{grid-template-columns:minmax(0,1fr)}}
@media print{body.receipt-page{background:#fff!important;color:#111!important}.receipt-page .standalone-nav,.receipt-page .standalone-footer,.receipt-page .receipt-actions,.receipt-page .skip-link{display:none!important}.receipt-main{width:100%;max-width:none;padding:0}.receipt-main h1,.receipt-card dd{color:#111}.receipt-card{border:1px solid #777;border-radius:0;background:#fff;box-shadow:none}.receipt-card dt,.receipt-note,.receipt-status{color:#333}.receipt-note{border-color:#333;background:transparent}}
.language-main{max-width:1040px}
.language-hero{max-width:790px;padding:18px 0 34px}
.language-hero h1{max-width:740px;margin:5px 0 10px;font-size:clamp(36px,7vw,68px);line-height:.98;letter-spacing:-.065em}
.language-status{display:flex;align-items:center;gap:8px;margin:17px 0 13px;color:var(--muted);font-size:12px}
.language-status i{width:6px;height:6px;border-radius:50%;background:var(--quiet)}
.language-status.is-ready i{background:var(--signal)}
.language-status.is-preview i{background:var(--accent)}
.language-sample,.language-faq,.roadmap-columns>article,.roadmap-changelog,.service-status-panel{border:1px solid var(--line);border-radius:7px;background:linear-gradient(160deg,rgba(255,255,255,.025),transparent 55%),var(--panel);box-shadow:inset 0 1px 0 rgba(255,255,255,.06)}
.language-sample{padding:clamp(14px,2.5vw,22px)}
.language-sample-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.language-sample-head h2,.language-faq h2{margin:2px 0 0;font-size:20px;letter-spacing:-.035em}
.language-sample-head>span{color:var(--quiet);font:12px var(--mono);letter-spacing:.1em}
.language-sample pre{overflow:auto;margin:14px 0 8px;padding:15px;border:1px solid var(--line2);border-radius:5px;background:#08090b;color:var(--ink);font:12px/1.7 var(--mono);white-space:pre-wrap}
.language-sample>p{margin:0;color:var(--muted);font-size:12px;line-height:1.6}
.language-faq{display:grid;gap:9px;margin-top:12px;padding:clamp(14px,2.5vw,22px)}
.language-faq>div{margin-bottom:3px}
.language-faq details{padding:11px 0;border-top:1px solid var(--line)}
.language-faq summary{color:var(--ink);font-size:13px;cursor:pointer}
.language-faq details p{margin:8px 0 0;color:var(--muted);font-size:12px;line-height:1.65}
.language-faq details a{color:var(--accent);text-underline-offset:3px}
.roadmap-main{max-width:1150px}
.roadmap-columns{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:25px}
.roadmap-columns>article{padding:16px}
.roadmap-columns h2{margin:4px 0 12px;font-size:19px;letter-spacing:-.035em}
.roadmap-columns ul{display:grid;gap:10px;margin:0;padding-left:19px;color:var(--muted);font-size:12px;line-height:1.6}
.roadmap-columns>article:nth-child(1){border-top:2px solid var(--signal)}
.roadmap-columns>article:nth-child(2){border-top:2px solid var(--cyan)}
.roadmap-columns>article:nth-child(3){border-top:2px solid var(--line2)}
.roadmap-changelog{display:grid;grid-template-columns:minmax(180px,.6fr) minmax(0,1.4fr);gap:20px;margin-top:12px;padding:17px}
.roadmap-changelog h2{margin:3px 0;font-size:20px;letter-spacing:-.035em}
.roadmap-changelog ol{display:grid;gap:0;margin:0;padding:0;list-style:none}
.roadmap-changelog li{display:grid;grid-template-columns:115px minmax(0,1fr);gap:14px;padding:12px 0;border-bottom:1px solid var(--line)}
.roadmap-changelog li:last-child{border:0}
.roadmap-changelog time{color:var(--cyan);font:12px/1.5 var(--mono);letter-spacing:.07em}
.roadmap-changelog li b{font-size:13px}
.roadmap-changelog li p{margin:4px 0 0;color:var(--muted);font-size:12px;line-height:1.55}
.status-main{max-width:900px}
.service-status-panel{margin-top:22px;padding:17px}
.service-status-message{margin:0 0 13px;color:var(--muted);font-size:13px;line-height:1.6}
.service-status-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.service-status-grid article{display:grid;gap:7px;min-height:118px;padding:13px;border:1px solid var(--line);border-radius:5px;background:rgba(8,8,10,.4)}
.service-status-grid article>span{color:var(--quiet);font:12px var(--mono);letter-spacing:.09em}
.service-status-grid article>b{font:600 13px var(--mono);color:var(--muted)}
.service-status-grid article>p{margin:0;color:var(--muted);font-size:12px;line-height:1.5}
.service-status-grid article[data-state="ok"]>b,.service-status-grid article[data-state="operational"]>b{color:var(--signal)}
.service-status-grid article[data-state="degraded"]>b{color:var(--accent)}
.service-status-grid article[data-state="down"]>b{color:var(--danger)}
.service-status-time{margin:13px 0 0;color:var(--quiet);font:12px var(--mono)}
.status-help{margin:13px 0;color:var(--muted);font-size:12px;line-height:1.6}
.status-help a,.privacy-summary-links a{color:var(--accent);text-underline-offset:3px}
.privacy-summary-main{max-width:940px}
.privacy-summary-list{display:grid;gap:0;margin:10px 0;padding:0;list-style:none;border:1px solid var(--line);border-radius:7px;background:var(--panel)}
.privacy-summary-list li{display:grid;grid-template-columns:150px minmax(0,1fr);gap:15px;padding:17px;border-bottom:1px solid var(--line)}
.privacy-summary-list li:last-child{border-bottom:0}
.privacy-summary-list>li>span{color:var(--cyan);font:12px/1.5 var(--mono);letter-spacing:.08em}
.privacy-summary-list h2{margin:0 0 5px;font-size:15px;letter-spacing:-.02em}
.privacy-summary-list p{margin:0;color:var(--muted);font-size:12px;line-height:1.65}
.privacy-summary-links{display:flex;flex-wrap:wrap;gap:8px;margin:13px 0}
.privacy-summary-links a{text-decoration:none}
.privacy-summary-links a:hover{border-color:var(--accent)}
.mini-lesson-main{max-width:920px}
.mini-lesson-hero{max-width:760px;padding:18px 0 24px}
.mini-lesson-hero h1{margin:5px 0 10px;font-size:clamp(38px,7vw,64px);line-height:.98;letter-spacing:-.065em}
.mini-lesson-hero .standalone-lede{max-width:65ch}
.mini-lesson-runner,.mini-lesson-next{margin-top:12px;padding:clamp(15px,3vw,24px);border:1px solid var(--line);border-radius:7px;background:linear-gradient(155deg,rgba(255,255,255,.03),transparent 48%),var(--panel);box-shadow:inset 0 1px 0 rgba(255,255,255,.07)}
.mini-runner-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:12px}
.mini-runner-head h2,.mini-lesson-next h2{margin:3px 0 0;font-size:clamp(20px,3vw,26px);letter-spacing:-.04em}
.mini-runner-status{max-width:310px;color:var(--muted);font-size:12px;line-height:1.5;text-align:right}
.mini-runner-status[data-state=success]{color:var(--signal)}
.mini-runner-status[data-state=error]{color:#ff9b9b}
#miniPythonEditor{display:block;width:100%;min-height:210px;padding:14px;border:1px solid var(--line2);border-radius:5px;background:#08090b;color:var(--ink);font:13px/1.65 var(--mono);resize:vertical;tab-size:4}
#miniPythonEditor:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.mini-runner-actions{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}
.mini-runner-actions button{min-height:40px}
#miniPythonOutput{display:block;width:100%;height:190px;border:1px solid var(--line);border-radius:5px;background:#08080a}
.mini-runner-note,.mini-lesson-next>p:not(.page-eyebrow){max-width:72ch;margin:10px 0 0;color:var(--muted);font-size:12px;line-height:1.65}
.mini-lesson-next{margin-bottom:20px}
.mini-lesson-next .solid-button{display:inline-flex;align-items:center;min-height:40px;margin-top:14px;text-decoration:none}
@media(max-width:600px){.mini-runner-head{flex-direction:column;gap:8px}.mini-runner-status{max-width:none;text-align:left}#miniPythonEditor{min-height:180px}.mini-runner-actions{display:grid;grid-template-columns:1fr 1fr}.mini-runner-actions button{padding-inline:9px}}
@media(prefers-reduced-motion:reduce){#miniPythonEditor{scroll-behavior:auto}}
@media(max-width:760px){.roadmap-columns{grid-template-columns:minmax(0,1fr)}.roadmap-changelog{grid-template-columns:minmax(0,1fr);gap:8px}.service-status-grid{grid-template-columns:minmax(0,1fr)}.service-status-grid article{min-height:0}.privacy-summary-list li{grid-template-columns:minmax(0,1fr);gap:5px;padding:14px}}
.support-ticket-form select{width:100%;min-height:42px;padding:10px 12px;border:1px solid var(--line2);border-radius:5px;color:var(--ink);background:#090a0d;font:12px/1.55 var(--sans)}
.support-ticket-form select:focus-visible{border-color:rgba(6,182,212,.55);outline:2px solid rgba(6,182,212,.22);outline-offset:1px}
.canned-reply-tools{display:grid;grid-template-columns:minmax(180px,1fr) auto;gap:8px;align-items:end}
.canned-reply-tools label{display:grid;gap:6px;color:var(--muted);font-size:12px}
.canned-reply-tools select{width:100%;min-height:40px;padding:8px 10px;border:1px solid var(--line2);border-radius:5px;color:var(--ink);background:#090a0d;font-size:12px}
.canned-reply-note{grid-column:1/-1;margin:0;color:var(--quiet);font-size:12px;line-height:1.5}
.hardship-request{padding-top:8px;border-top:1px solid var(--line)}
@media(max-width:560px){.canned-reply-tools{grid-template-columns:minmax(0,1fr)}.canned-reply-tools .subtle-button{justify-self:start}}

/* Native choice controls use the same compact, framed interaction system as custom pickers. */
select:not([multiple]){appearance:none;-webkit-appearance:none;width:100%;min-height:42px;padding:0 36px 0 12px;border:1px solid var(--line2);border-radius:5px;color:var(--ink);background-color:var(--panel);background-image:linear-gradient(45deg,transparent 50%,currentColor 50%),linear-gradient(135deg,currentColor 50%,transparent 50%);background-position:calc(100% - 17px) 50%,calc(100% - 12px) 50%;background-size:5px 5px;background-repeat:no-repeat;font:13px/1.4 var(--sans);transition:border-color .16s ease,background-color .16s ease,box-shadow .16s ease}
select:not([multiple]):hover:not(:disabled){border-color:rgba(245,158,11,.42);background-color:var(--raised)}
select:not([multiple]):focus-visible{border-color:rgba(245,158,11,.72);outline:2px solid rgba(245,158,11,.22);outline-offset:2px;box-shadow:0 0 0 1px rgba(245,158,11,.1)}
select:not([multiple]):disabled{color:var(--quiet);background-color:var(--panel);cursor:not-allowed;opacity:.65}
select:not([multiple]) option{color:var(--ink);background:#0d0e12}
body[data-theme="light"] select:not([multiple]) option{color:#17181b;background:#fff}
.rank-switcher{gap:5px;padding:4px;border-color:var(--line2);background:linear-gradient(180deg,rgba(255,255,255,.025),transparent),var(--panel);box-shadow:inset 0 1px 0 rgba(255,255,255,.06)}
.rank-button{position:relative;min-height:36px;padding-inline:11px;border:1px solid transparent;border-radius:4px;font-weight:600;letter-spacing:.04em;transition:color .16s ease,border-color .16s ease,background .16s ease}
.rank-button:hover{color:var(--ink);border-color:var(--line2);background:rgba(255,255,255,.04)}
.rank-button.active{color:var(--accent);border-color:rgba(245,158,11,.32);background:linear-gradient(180deg,rgba(245,158,11,.12),rgba(245,158,11,.045));box-shadow:inset 0 1px 0 rgba(255,255,255,.06)}
.rank-button.active::before{position:absolute;right:8px;bottom:4px;left:8px;height:1px;background:var(--accent);content:""}
.rank-share-panel{display:grid;gap:9px;margin-top:14px;padding:13px;border:1px solid var(--line2);border-left:2px solid var(--cyan);border-radius:5px;background:linear-gradient(120deg,rgba(6,182,212,.055),transparent 62%),var(--panel);box-shadow:inset 0 1px 0 rgba(255,255,255,.07)}
.rank-share-panel h3{margin:0;color:var(--ink);font-size:15px;letter-spacing:-.025em}
.rank-share-panel>p{margin:0;color:var(--muted);font-size:12px;line-height:1.6}
.rank-share-opt-in{display:flex;align-items:center;gap:8px;min-height:34px;color:var(--muted);font-size:12px;cursor:pointer}
.rank-share-opt-in input{width:15px;height:15px;accent-color:var(--accent)}
.rank-share-status{min-height:18px;color:var(--quiet);font:12px/1.5 var(--mono)}
@media(prefers-reduced-motion:reduce){select:not([multiple]),.rank-button{transition:none}}

/* Nova follows the amber orbital identity from the supplied reference. */
.nova-mark{width:42px;height:42px;padding:2px;overflow:hidden;border-color:rgba(245,158,11,.42);border-radius:50%;color:var(--accent);background:radial-gradient(circle at 50% 45%,rgba(245,158,11,.1),rgba(8,8,10,.92) 68%);box-shadow:0 0 20px rgba(245,158,11,.12),inset 0 1px 0 rgba(255,255,255,.1)}
.nova-mark img{display:block;width:100%;height:100%;object-fit:contain}
.nova-name>b{color:var(--accent)}
.right-head{position:relative}
.right-head:after{position:absolute;right:0;bottom:-1px;left:0;height:1px;background:linear-gradient(90deg,rgba(245,158,11,.55),transparent 72%);content:""}
.tutor-card{border-left-color:rgba(245,158,11,.72);background:radial-gradient(ellipse at 8% 5%,rgba(245,158,11,.085),transparent 63%),linear-gradient(100deg,rgba(245,158,11,.04),transparent 74%),rgba(18,20,26,.7)}
.tutor-context-row .context-led{background:var(--accent);box-shadow:0 0 0 3px rgba(245,158,11,.1),0 0 10px rgba(245,158,11,.28)}
.message.bot{border-left-color:rgba(245,158,11,.78);background:linear-gradient(90deg,rgba(245,158,11,.075),transparent 92%)}
.message-avatar{border-color:rgba(245,158,11,.35);border-radius:50%;background:radial-gradient(circle,rgba(245,158,11,.11),var(--panel))}
.assistant-thinking i{background:var(--accent)}
.chat-input-wrap:focus-within{border-color:rgba(245,158,11,.58);box-shadow:0 0 0 2px rgba(245,158,11,.1)}
.send-button{border-color:rgba(245,158,11,.5);box-shadow:0 0 14px rgba(245,158,11,.12)}
body[data-theme="light"]{--canvas:#f4f4f1;--panel:#fff;--raised:#f8f8f6;--raised2:#ececea;--ink:#17191d;--muted:#414751;--quiet:#59616b;--line:rgba(22,25,30,.12);--line2:rgba(22,25,30,.22);--accent:#814b00;--accent-soft:rgba(129,75,0,.1);--signal:#08714e;--cyan:#075f72;--danger:#b42318;--action-bg:#17191d;--action-ink:#fff;--action-border:#17191d;--focus-ring:#814b00;--shadow:0 18px 55px rgba(10,12,16,.1)}
body[data-theme="light"] .sidebar,body[data-theme="light"] .rightbar{color:var(--ink);background:#fff}
body[data-theme="light"] .main,body[data-theme="light"] .app{color:var(--ink);background:var(--canvas)}
body[data-theme="light"] .nav-btn,body[data-theme="light"] .sidebar-footer-links a,body[data-theme="light"] .breadcrumb,body[data-theme="light"] .profile-text span,body[data-theme="light"] .streak-card p,body[data-theme="light"] .tutor-context-row,body[data-theme="light"] .tutor-coach-boundary,body[data-theme="light"] .chat-foot{color:var(--muted)}
body[data-theme="light"] .nav-btn:hover,body[data-theme="light"] .nav-btn.active{color:var(--ink);background:var(--raised)}
body[data-theme="light"] .nav-btn svg,body[data-theme="light"] .breadcrumb-separator{color:var(--quiet)}
body[data-theme="light"] .tutor-card{border-color:var(--line);border-left-color:var(--accent);background:radial-gradient(ellipse at 8% 5%,rgba(129,75,0,.055),transparent 65%),#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.9),0 8px 24px rgba(20,22,26,.035)}
body[data-theme="light"] .nova-mark{border-color:rgba(129,75,0,.42);background:#11100e}
body[data-theme="light"] .message.bot{color:var(--ink);border-left-color:var(--accent);background:linear-gradient(90deg,rgba(129,75,0,.07),transparent 92%)}
body[data-theme="light"] .message.user{color:var(--ink);border-color:rgba(129,75,0,.2);background:rgba(129,75,0,.07)}
body[data-theme="light"] .message-meta,body[data-theme="light"] .message-content,body[data-theme="light"] .chat-copy{color:var(--ink)}
body[data-theme="light"] .chat-messages{border-top-color:var(--line)}
body[data-theme="light"] .chat-input-wrap{border-color:var(--line2);background:#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.9)}
body[data-theme="light"] .chat-input-wrap:focus-within{border-color:rgba(129,75,0,.62);box-shadow:0 0 0 2px rgba(129,75,0,.12)}
body[data-theme="light"] .chat-input{color:var(--ink)}
body[data-theme="light"] .chat-input::placeholder{color:var(--quiet);opacity:1}
body[data-theme="light"] .suggestion{color:var(--muted);background:#fff}
body[data-theme="light"] .suggestion:hover{color:var(--ink);background:var(--raised)}
body[data-theme="light"] .quick-exam{color:var(--ink);background:#fff}
body[data-theme="light"] .lesson-objective,body[data-theme="light"] .lesson-sub,body[data-theme="light"] .lesson-guide-grid p,body[data-theme="light"] .lesson-experiment p{color:var(--muted)}
body[data-theme="light"] .ui-language-select{color:var(--ink);border-color:var(--line2);background-color:#fff}
html[dir="rtl"] .code-block,html[dir="rtl"] .code-lines,html[dir="rtl"] .code-window,html[dir="rtl"] .welcome-code,html[dir="rtl"] .puzzle-code,html[dir="rtl"] .chat-code-frame,html[dir="rtl"] pre,html[dir="rtl"] code,html[dir="rtl"] textarea[spellcheck="false"],html[dir="rtl"] .line-breakdown td:nth-child(2){direction:ltr;text-align:left;unicode-bidi:plaintext}
html[dir="rtl"] .lesson-title,html[dir="rtl"] .lesson-sub,html[dir="rtl"] .lesson-guide-grid,html[dir="rtl"] .lesson-experiment,html[dir="rtl"] .answer-options,html[dir="rtl"] .challenge-case,html[dir="rtl"] .practical-instructions{direction:rtl;text-align:right}
html[dir="rtl"] .answer-option{flex-direction:row-reverse;text-align:right}
html[dir="rtl"] .lesson-guide-steps{padding-right:20px;padding-left:0}
@media(max-width:760px){.top-actions .ui-language-select{width:82px;min-width:68px}.top-actions .lang-select{max-width:82px}}
.brand-mark,.welcome-brand-mark{overflow:hidden;padding:0}
.brand-mark img,.welcome-brand-mark img{display:block;width:100%;height:100%;object-fit:cover;border-radius:inherit}
.message-avatar{overflow:hidden;border-radius:50%;padding:1px;background:#08080a}
.message-avatar img{display:block;width:100%;height:100%;object-fit:contain}
body[data-theme="light"] .coach-demo{color:var(--ink);border-color:var(--line2);background:#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.95),0 8px 24px rgba(20,22,26,.045)}
body[data-theme="light"] .coach-demo-top{border-color:var(--line)}
body[data-theme="light"] .coach-message{color:var(--muted);border-color:var(--line);background:var(--raised)}
body[data-theme="light"] .coach-prompts button{color:var(--muted);border-color:var(--line2);background:#fff}
body[data-theme="light"] .coach-prompts button:hover{color:var(--ink);border-color:rgba(129,75,0,.45);background:var(--raised)}
body[data-theme="light"] .coach-demo-form input{color:var(--ink);border-color:var(--line2);background:#fff}
body[data-theme="light"] .coach-demo-form button{color:var(--ink);border-color:var(--line2);background:var(--raised)}
body[data-theme="light"] .coach-demo-foot{color:var(--muted)}
body[data-theme="light"] .coach-avatar.nova-avatar{border-color:rgba(129,75,0,.42);background:#11100e}
body[data-theme="light"] .nova-name>b{color:#714100}
body[data-theme="light"] .nova-name small,body[data-theme="light"] .online{color:var(--muted)}
body[data-theme="light"] .tutor-card,body[data-theme="light"] .quick-exam,body[data-theme="light"] .chat-input-wrap{color:var(--ink)}
body[data-theme="light"] .tutor-card p,body[data-theme="light"] .quick-exam-copy span{color:var(--muted)}
body[data-theme="light"] .welcome-agent{color:var(--ink);background:#fff;border-color:var(--line2)}
body[data-theme="light"] :is(button,a,input,textarea,select,[tabindex]):focus-visible{outline-color:#814b00}
html[dir="rtl"] .practice-tools-heading,html[dir="rtl"] .practice-tool-card,html[dir="rtl"] .placement-form,html[dir="rtl"] .sprint-body,html[dir="rtl"] .sprint-result{text-align:right;direction:rtl}
html[dir="rtl"] .sprint-choices .sprint-choice{direction:rtl;text-align:right}
body[data-theme="light"] .hero{color:#f4f4f6;border-color:rgba(129,75,0,.34);background:radial-gradient(ellipse at 82% 16%,rgba(245,158,11,.12),transparent 26rem),linear-gradient(135deg,#111216,#0b0c0f 62%,#101116)}
body[data-theme="light"] .hero h2{color:#f4f4f6}
body[data-theme="light"] .hero p,body[data-theme="light"] .hero .text-button{color:#c7c9cf}
body[data-theme="light"] .hero .text-button:hover{color:#ffc45c}
body[data-theme="light"] .hero-label{color:#ffc45c}
body[data-theme="light"] .code-window{color:#f4f4f6;border-color:rgba(255,255,255,.16);background:rgba(13,14,18,.96)}
body[data-theme="light"] .demo-label,body[data-theme="light"] .demo-language,body[data-theme="light"] .trace-button,body[data-theme="light"] .hero-proof{color:#b7bbc5}
body[data-theme="light"] .trace-button{border-color:rgba(255,255,255,.18);background:#17191f}
body[data-theme="light"] .hero-demo-code{color:#f4f4f6}
body[data-theme="light"] .demo-output span{color:#aeb3be}
body[data-theme="light"] .demo-output b{color:#10b981}
body[data-theme="light"] .quest-hub{color:#f4f4f6;border-color:rgba(129,75,0,.28);background:radial-gradient(ellipse at 100% 0,rgba(245,158,11,.1),transparent 28rem),linear-gradient(155deg,#101116,#0d0e12 55%)}
body[data-theme="light"] .quest-hub-head h2{color:#f4f4f6}
body[data-theme="light"] .quest-hub-head p,body[data-theme="light"] .level-orb span{color:#b7bbc5}
body[data-theme="light"] .quest-kicker{color:#48d6a0}
body[data-theme="light"] .quest-card{border-color:rgba(255,255,255,.12);background:linear-gradient(150deg,rgba(255,255,255,.035),transparent 48%),rgba(8,9,12,.86)}
body[data-theme="light"] .quest-card-copy b{color:#f4f4f6}
body[data-theme="light"] .quest-card-copy span,body[data-theme="light"] .quest-card-bottom>span,body[data-theme="light"] .quest-reward{color:#b7bbc5}
body[data-theme="light"] .quest-action{color:#f4f4f6;border-color:rgba(255,255,255,.2);background:#17191f}
body[data-theme="light"] .puzzle-card{color:#f4f4f6;border-color:rgba(129,75,0,.26);background:radial-gradient(ellipse at 2% 50%,rgba(245,158,11,.1),transparent 20rem),linear-gradient(130deg,#101116,#0b0c10)}
body[data-theme="light"] .puzzle-content h3{color:#f4f4f6}
body[data-theme="light"] .puzzle-code{color:#e5e7eb}
body[data-theme="light"] .puzzle-stamp{color:#b7bbc5}
body[data-theme="light"] .puzzle-feedback{color:#c7c9cf}
body[data-theme="light"] .puzzle-answers button{color:#c7c9cf;border-color:rgba(255,255,255,.2);background:#17191f}
body[data-theme="light"] .puzzle-answers button:hover:not(:disabled){color:#fff}
.top-actions .ui-language-select{width:108px;min-width:108px;flex:0 0 108px}
.top-actions .sign-in-button{min-width:64px;flex:0 0 auto;padding-inline:9px;white-space:nowrap}
@media(max-width:760px){.top-actions .ui-language-select{width:82px;min-width:82px;flex-basis:82px}.top-actions .sign-in-button{min-width:58px;padding-inline:6px}}
@media(max-width:420px){.top-actions .ui-language-select{width:74px;min-width:74px;flex-basis:74px}.top-actions .sign-in-button{min-width:54px;padding-inline:5px}}