:root{color-scheme:dark;--canvas:#0e1824;--canvas-deep:#0a121c;--rail:#111e2b;--surface:#162534;--surface-soft:#192b3b;--surface-hover:#1e3447;--surface-active:#213b51;--text:#f5f8fb;--text-soft:#dce6ef;--muted:#9fb1c1;--muted-strong:#bac8d4;--line:rgba(190,213,232,0.13);--line-strong:rgba(190,213,232,0.42);--accent:#68b5ff;--accent-strong:#469bea;--accent-soft:rgba(104,181,255,0.14);--violet:#9a8cff;--success:#6ed9a3;--success-soft:rgba(110,217,163,0.13);--danger:#ff8f9a;--danger-soft:rgba(255,107,123,0.13);--warning:#f4c66a;--focus:#a8d6ff;--shadow-float:0 18px 55px rgba(0,0,0,0.3);--radius-sm:9px;--radius-md:13px;--radius-lg:18px;--page-gutter:clamp(16px,3vw,32px)}*,:after,:before{box-sizing:border-box}html{min-height:100%;background:var(--canvas-deep);scroll-behavior:smooth}body,html{min-width:0}body{margin:0;min-height:100dvh;overflow-x:hidden;background:radial-gradient(circle at 85% -12%,rgba(104,181,255,.09),transparent 32rem),linear-gradient(145deg,var(--canvas-deep),var(--canvas) 42%,#0d1b28);color:var(--text);font-family:var(--font-open-sans),"Open Sans",system-ui,sans-serif;font-size:16px;line-height:1.5;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit}a,button,input,select,textarea{-webkit-tap-highlight-color:transparent}a{color:inherit}button{border:0}h1,h2,h3,h4,p{margin:0}h1,h2,h3,h4{line-height:1.16;text-wrap:balance}h1{font-size:clamp(1.85rem,4vw,3.3rem);letter-spacing:-.045em}h2{font-size:clamp(1.3rem,2vw,1.75rem);letter-spacing:-.025em}h3{font-size:1.08rem;letter-spacing:-.01em}::selection{background:rgba(104,181,255,.35);color:var(--text)}.app-root{min-height:100dvh}.skip-link{position:fixed;z-index:1000;top:10px;left:10px;padding:10px 14px;border-radius:var(--radius-sm);background:var(--text);color:var(--canvas-deep);font-weight:750;transform:translateY(-150%);transition:transform .16s 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clamp(52px,7vw,84px)}.page--wide{width:min(100%,1480px)}.page--narrow{width:min(100%,620px)}.stack{display:grid;grid-gap:18px;gap:18px}.stack-sm{display:grid;grid-gap:10px;gap:10px}.row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.between{justify-content:space-between}.muted{color:var(--muted)}.eyebrow{color:var(--accent);font-size:.76rem;font-weight:800;letter-spacing:.09em;text-transform:uppercase}.header,.page-header{display:flex;align-items:flex-start;justify-content:space-between;gap:24px}.page-heading{display:grid;grid-gap:9px;gap:9px;max-width:760px}.page-subtitle{max-width:64ch;color:var(--muted);font-size:1rem}.nav,.nav-actions{display:flex;align-items:center;justify-content:flex-end;gap:8px;flex-wrap:wrap}.brand-lockup{display:inline-flex;align-items:center;gap:11px;color:var(--text);text-decoration:none}.brand-mark{display:inline-grid;width:42px;height:42px;place-items:center;border-radius:14px;background:linear-gradient(145deg,var(--accent),#4c8df5 58%,var(--violet));box-shadow:0 8px 25px rgba(70,155,234,.25);color:#07121e;font-size:1.12rem;font-weight:950;letter-spacing:-.08em}.brand-name{display:grid;line-height:1.05}.brand-name strong{font-size:1rem;letter-spacing:-.02em}.brand-name span{color:var(--muted);font-size:.72rem}.button,button:not(.quiz-select){min-height:44px;padding:10px 16px;border:1px solid transparent;border-radius:var(--radius-md);background:var(--accent);color:#07131f;font-weight:780;line-height:1.15;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:background-color .15s ease,border-color .15s ease,color .15s ease,transform .15s ease}.button:hover,button:not(.quiz-select):hover{background:#82c2ff}.button:active,button:not(.quiz-select):active{transform:translateY(1px)}.button-quiet,.button.secondary,button.secondary{border-color:var(--line);background:var(--surface-soft);color:var(--text-soft)}.button-quiet:hover,.button.secondary:hover,button.secondary:hover{border-color:var(--line-strong);background:var(--surface-hover);color:var(--text)}.button.ghost,button.ghost{border-color:transparent;background:transparent;color:var(--muted-strong)}.button.ghost:hover,button.ghost:hover{background:var(--accent-soft);color:var(--text)}.button.danger,button.danger{border-color:rgba(255,143,154,.24);background:var(--danger-soft);color:#ffb1ba}.button.danger:hover,button.danger:hover{border-color:rgba(255,143,154,.38);background:rgba(255,107,123,.2)}.button.small,button.small{min-height:40px;padding:8px 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var(--line);border-radius:999px;padding:4px 10px;background:rgba(255,255,255,.035);color:var(--muted-strong);font-size:.72rem;font-weight:800;letter-spacing:.045em;text-transform:uppercase}.status-chip:before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}.status-chip--live{border-color:rgba(110,217,163,.25);background:var(--success-soft);color:var(--success)}.status-chip--waiting{border-color:rgba(244,198,106,.2);background:rgba(244,198,106,.1);color:var(--warning)}.status-chip--finished{color:var(--violet)}.notice,.status-error,.status-ok{border-radius:var(--radius-md);padding:12px 14px;font-weight:680}.status-ok{border:1px solid rgba(110,217,163,.23);background:var(--success-soft);color:#9aebc0}.status-error{border:1px solid rgba(255,143,154,.24);background:var(--danger-soft);color:#ffb3bb}.inline-status{min-height:22px;color:var(--muted);font-size:.88rem}.admin-form-messages:empty,.session-page>.inline-status:empty{display:none}.state-page{display:grid;min-height:100dvh;place-items:center}.state-view{display:grid;max-width:560px;justify-items:center;grid-gap:16px;gap:16px;padding:36px;text-align:center}.state-view p{color:var(--muted)}.state-view--error{border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface)}.state-symbol{display:grid;width:48px;height:48px;place-items:center;border-radius:50%;background:var(--danger-soft);color:var(--danger);font-size:1.35rem;font-weight:900}.spinner{width:32px;height:32px;border:3px solid var(--line-strong);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}@keyframes 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minmax(320px,460px);align-items:center;grid-gap:clamp(42px,8vw,118px);gap:clamp(42px,8vw,118px);padding:clamp(24px,5vw,64px) 0}.hero-title.hero-title--compact{max-width:760px;font-size:clamp(3rem,7vw,6.4rem)}.home-notes{display:flex;gap:10px 22px;flex-wrap:wrap;margin-top:8px;color:var(--muted);font-size:.85rem;font-weight:700}.home-notes span{display:inline-flex;align-items:center;gap:8px}.home-notes span:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}.room-entry-panel{display:grid;grid-gap:17px;gap:17px;padding:clamp(22px,4vw,32px);border:1px solid var(--line);border-radius:var(--radius-lg);background:rgba(17,30,43,.72);box-shadow:var(--shadow-float);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.public-room-button{min-height:56px;justify-content:space-between;font-size:1rem}.public-room-button span{font-size:1.3rem}.private-room-intro{display:grid;grid-gap:14px;gap:14px}.private-room-intro>div{display:grid;grid-gap:4px;gap:4px}.private-room-intro small,.private-room-join small{color:var(--muted)}.private-room-join{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:end;grid-gap:12px;gap:12px}.private-room-join .session-code-input{height:52px;font-size:1.08rem}.private-room-join>button{min-height:52px}.entry-separator{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;grid-gap:12px;gap:12px;color:var(--muted);font-size:.75rem;font-weight:750;text-transform:uppercase}.entry-separator:after,.entry-separator:before{content:"";height:1px;background:var(--line)}.home-footer{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;padding-top:22px;border-top:1px solid var(--line);color:var(--muted);font-size:.88rem}.home-footer a{color:var(--text-soft);font-weight:700}.hero-copy{display:grid;grid-gap:18px;gap:18px}.hero-title{max-width:820px;font-size:clamp(2.9rem,8vw,6.8rem);line-height:.96;letter-spacing:-.075em}.hero-title span{color:var(--accent)}.hero-description{max-width:57ch;color:var(--muted-strong);font-size:clamp(1rem,2vw,1.18rem)}.hero-aside{display:grid;grid-gap:18px;gap:18px;padding:8px 0 8px clamp(20px,4vw,42px);border-left:1px solid var(--line)}.hero-stat{display:grid;grid-gap:2px;gap:2px}.hero-stat strong{color:var(--text);font-size:1.05rem}.hero-stat span{color:var(--muted);font-size:.88rem}.quiz-library{display:grid;grid-gap:18px;gap:18px}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:18px}.section-heading p{color:var(--muted)}.quiz-list{margin:0;padding:0;border-top:1px solid var(--line);list-style:none}.quiz-row{display:grid;grid-template-columns:52px minmax(0,1fr) auto;align-items:center;grid-gap:18px;gap:18px;min-height:108px;padding:18px 12px;border-bottom:1px solid var(--line);transition:background-color .15s ease}.quiz-row:hover{background:rgba(104,181,255,.045)}.quiz-mode-mark{display:grid;width:48px;height:48px;place-items:center;border-radius:15px;background:var(--accent-soft);color:var(--accent);font-size:1.05rem;font-weight:900}.quiz-mode-mark--blindtest{background:rgba(154,140,255,.14);color:var(--violet)}.quiz-row-copy{display:grid;grid-gap:6px;gap:6px;min-width:0}.quiz-row-copy p{max-width:68ch;color:var(--muted)}.quiz-row-meta{display:flex;gap:8px 14px;flex-wrap:wrap;color:var(--muted);font-size:.8rem;font-weight:700}.quiz-session-action{display:grid;min-width:176px;justify-items:stretch;grid-gap:7px;gap:7px}.quiz-session-action .status-error{max-width:240px;padding:8px 10px;font-size:.78rem}.custom-heading{display:grid;max-width:820px;grid-gap:14px;gap:14px;padding:clamp(26px,6vw,58px) 0 12px}.custom-empty{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:28px 4px;border-block:1px solid var(--line)}.custom-empty>div{display:grid;grid-gap:7px;gap:7px}.custom-empty p{color:var(--muted)}.join-page{display:grid;align-content:start;grid-gap:clamp(50px,10vw,110px);gap:clamp(50px,10vw,110px)}.join-layout{display:grid;grid-template-columns:minmax(0,.9fr) minmax(340px,480px);align-items:center;grid-gap:clamp(44px,9vw,120px);gap:clamp(44px,9vw,120px);width:min(100%,1040px);margin:0 auto}.join-intro{display:grid;grid-gap:16px;gap:16px}.join-intro p{max-width:48ch;color:var(--muted)}.join-layout--simple{align-items:center}.direct-room-code{display:grid;grid-gap:2px;gap:2px;margin-top:12px;padding-left:18px;border-left:3px solid var(--accent)}.direct-room-code span{color:var(--muted);font-size:.78rem;font-weight:750;letter-spacing:.08em;text-transform:uppercase}.direct-room-code strong{color:var(--text);font-size:clamp(2rem,6vw,3.5rem);letter-spacing:.12em;line-height:1}.join-steps{display:grid;grid-gap:13px;gap:13px;margin:10px 0 0;padding:0;list-style:none;counter-reset:steps}.join-steps li{display:flex;align-items:center;gap:11px;color:var(--muted-strong);counter-increment:steps}.join-steps li:before{content:counter(steps);display:grid;width:28px;height:28px;flex:0 0 auto;place-items:center;border-radius:50%;background:var(--accent-soft);color:var(--accent);font-size:.78rem;font-weight:850}.join-panel{display:grid;grid-gap:20px;gap:20px;border:1px solid var(--line);border-radius:var(--radius-lg);padding:clamp(22px,5vw,34px);background:rgba(22,37,52,.78);box-shadow:var(--shadow-float);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.session-code-input{height:62px;text-transform:uppercase;letter-spacing:.14em;font-size:1.35rem;font-weight:850;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.form-actions{display:grid;grid-gap:10px;gap:10px}.public-join-page{display:grid;align-content:start;grid-gap:clamp(44px,8vw,96px);gap:clamp(44px,8vw,96px)}.public-join-stage{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(300px,.75fr);align-items:center;grid-gap:clamp(36px,8vw,110px);gap:clamp(36px,8vw,110px);padding-block:clamp(32px,8vw,90px)}.public-join-copy{display:grid;grid-gap:18px;gap:18px}.public-join-copy h1{max-width:840px;font-size:clamp(3rem,7vw,6.4rem);line-height:.97;letter-spacing:-.07em}.public-join-copy>p:last-child{max-width:54ch;color:var(--muted-strong);font-size:1.06rem}.session-page{display:grid;align-content:start;grid-gap:26px;gap:26px}.session-topbar{display:grid;grid-template-columns:minmax(0,1fr) auto;grid-gap:24px;gap:24px;align-items:start;padding-bottom:20px;border-bottom:1px solid var(--line)}.session-heading{display:grid;grid-gap:8px;gap:8px;min-width:0}.session-heading h1{overflow-wrap:anywhere}.session-meta{display:flex;align-items:center;gap:9px 14px;flex-wrap:wrap;color:var(--muted);font-size:.88rem}.session-share-bar{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;grid-gap:18px;gap:18px;min-height:92px;padding:16px 20px;border-block:1px solid var(--line);background:transparent}.session-code{color:var(--text);font-size:clamp(2rem,6vw,4.4rem);font-weight:950;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;letter-spacing:.11em;line-height:1}.share-copy{display:grid;grid-gap:3px;gap:3px;min-width:0}.share-copy strong{color:var(--text-soft)}.share-copy span{overflow:hidden;color:var(--muted);font-size:.86rem;text-overflow:ellipsis;white-space:nowrap}.host-dashboard{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(280px,.7fr);grid-gap:22px;gap:22px;align-items:start}.host-stage{border:1px solid var(--line);border-radius:var(--radius-lg);background:rgba(17,30,43,.76)}.host-sidebar{border-left:1px solid var(--line)}.host-stage{display:grid;min-height:390px;align-content:space-between}.host-stage-header,.sidebar-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:20px 22px;border-bottom:1px solid var(--line)}.question-stage{display:grid;grid-gap:22px;gap:22px;padding:clamp(24px,5vw,54px) clamp(22px,5vw,58px)}.question-stage h2{max-width:28ch;font-size:clamp(1.8rem,4vw,3.2rem)}.waiting-stage{display:grid;align-content:center;justify-items:start;grid-gap:13px;gap:13px;min-height:270px;padding:clamp(28px,6vw,64px)}.waiting-pulse{position:relative;width:18px;height:18px;border-radius:50%;background:var(--warning)}.waiting-pulse:after{content:"";position:absolute;inset:-7px;border:1px solid var(--warning);border-radius:50%;animation:pulse 1.8s ease-out infinite}@keyframes pulse{0%{opacity:.75;transform:scale(.7)}to{opacity:0;transform:scale(1.3)}}.response-progress{display:grid;grid-gap:8px;gap:8px;padding:18px 22px 22px;border-top:1px solid var(--line)}.response-progress-label{display:flex;justify-content:space-between;gap:14px;color:var(--muted);font-size:.85rem}progress{width:100%;height:7px;overflow:hidden;border:0;border-radius:999px;background:var(--surface-hover);accent-color:var(--accent)}progress::-webkit-progress-bar{border-radius:999px;background:var(--surface-hover)}progress::-webkit-progress-value{border-radius:999px;background:linear-gradient(90deg,var(--accent-strong),var(--accent))}progress::-moz-progress-bar{border-radius:999px;background:var(--accent)}.host-sidebar .leaderboard{max-height:520px;overflow-y:auto}.host-controls{position:-webkit-sticky;position:sticky;z-index:20;bottom:14px;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px;border:1px solid var(--line-strong);border-radius:16px;background:rgba(14,24,36,.9);box-shadow:var(--shadow-float);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.host-control-group{display:flex;gap:8px;flex-wrap:wrap}.player-page{width:min(100%,780px)}.player-topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:18px;border-bottom:1px solid var(--line)}.player-identity{display:flex;align-items:center;gap:12px;min-width:0}.leaderboard-avatar,.player-avatar{display:grid;flex:0 0 auto;place-items:center;border-radius:50%;background:var(--accent-soft);color:var(--accent);font-weight:850;text-transform:uppercase}.player-avatar{width:42px;height:42px}.player-identity-copy{display:grid;min-width:0;line-height:1.25}.player-identity-copy span,.player-identity-copy strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.player-identity-copy span{color:var(--muted);font-size:.82rem}.player-score{color:var(--text);font-size:.94rem;font-weight:800;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.player-state{display:grid;min-height:min(620px,calc(100dvh - 150px));align-content:center;grid-gap:18px;gap:18px;padding:clamp(34px,9vw,80px) 0}.player-state p{color:var(--muted)}.player-question{display:grid;grid-gap:24px;gap:24px;padding:clamp(28px,7vw,58px) 0}.question-progress{display:grid;grid-gap:10px;gap:10px}.question-progress-line{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:.82rem;font-weight:700}.player-question h1{font-size:clamp(2rem,6vw,4.4rem)}.audio-player{width:100%;margin:2px 0;border-radius:10px}.choice-list{display:grid;grid-gap:10px;gap:10px;margin-top:4px}.choice-list .choice{display:grid;grid-template-columns:34px minmax(0,1fr);width:100%;min-height:62px;justify-content:stretch;border:1px solid var(--line);border-radius:var(--radius-md);padding:12px 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i{display:block;height:100%;border-radius:inherit;background:currentColor}.face-player-list{display:grid;grid-gap:6px;gap:6px;margin-top:8px}.face-player-list>span{display:grid;min-width:0;grid-template-columns:8px minmax(0,1fr) auto;align-items:center;grid-gap:7px;gap:7px;color:var(--muted);font-size:.84rem;overflow-wrap:anywhere}.face-player-list i{width:7px;height:7px;border-radius:50%;background:var(--line-strong)}.face-player-list .is-orange i{background:#f39a43}.face-player-list .is-blue i{background:#4ca9f2}.face-player-list small{font-size:.68rem}.face-stage{display:grid;min-width:0;min-height:0;--face-question-reserved-height:6.5rem;grid-template-rows:auto auto minmax(var(--face-question-reserved-height),1fr) 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h1{width:100%;max-width:60ch;margin:0;color:var(--text);font-family:var(--font-body);font-size:var(--face-question-font-size,clamp(1.4rem,2.4vw,2.2rem));font-weight:650;line-height:var(--face-question-line-height,1.18);-webkit-hyphens:auto;hyphens:auto;overflow-wrap:anywhere;text-wrap:wrap;text-align:left}.face-question-copy[data-font-size-tier=short]{--face-question-font-size:clamp(1.68rem,3.2vw,2.85rem)}.face-question-copy[data-font-size-tier=medium]{--face-question-font-size:clamp(1.42rem,2.5vw,2.24rem)}.face-question-copy[data-font-size-tier=long]{--face-question-font-size:clamp(1.16rem,1.9vw,1.68rem)}.face-question-copy[data-font-size-tier=dense]{--face-question-font-size:clamp(0.96rem,1.55vw,1.28rem)}.face-question-copy[data-font-size-tier=ultra_dense]{--face-question-font-size:clamp(0.78rem,1.25vw,1.06rem)}.face-question-copy[data-line-height-tier=relaxed]{--face-question-line-height:1.2}.face-question-copy[data-line-height-tier=regular]{--face-question-line-height:1.18}.face-question-copy[data-line-height-tier=compact]{--face-question-line-height:1.14}.face-controls{display:grid;min-width:0;min-height:64px;place-items:center;grid-gap:6px;gap:6px}.face-category-label{display:block;margin-bottom:6px;color:var(--accent);font-size:.78rem;font-weight:760;letter-spacing:.08em;text-transform:uppercase}.face-attempt-history{display:grid;min-width:0;width:min(100%,860px);max-height:118px;grid-gap:4px;gap:4px;overflow:auto;margin:0;padding:0;list-style:none}.face-attempt-history 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