@font-face{font-family:Nunito;font-weight:400;font-display:swap;src:url(/fonts/nunito-regular.woff) format("woff")}@font-face{font-family:Nunito;font-weight:600;font-display:swap;src:url(/fonts/nunito-semibold.woff) format("woff")}@font-face{font-family:Nunito;font-weight:700 900;font-display:swap;src:url(/fonts/nunito-bold.woff) format("woff")}:root{color-scheme:light;--bg: #F7F8FA;--surface: #FFFFFF;--surface-2: #F1F3F6;--line: #E4E7EC;--ink: #111827;--ink-2: #4B5563;--muted: #6B7280;--blue: #2F55D4;--blue-soft: #EEF2FC;--amber: #C2620A;--amber-soft: #FBF3EA;--green: #1E7F4F;--green-soft: #EAF4EE;--red: #C53030;--red-soft: #FBEDED;--gold: #E8A80C;--accent: var(--blue);--radius: 16px;--shadow: 0 1px 2px rgba(17, 24, 39, .05), 0 6px 20px rgba(17, 24, 39, .06);--safe-b: env(safe-area-inset-bottom, 0px)}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--ink);font-family:Nunito,system-ui,-apple-system,Segoe 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p{margin:0;color:var(--ink-2);max-width:440px}.confetti{position:fixed;inset:0;pointer-events:none;overflow:hidden;z-index:50}.confetti i{position:absolute;top:-12px;width:9px;height:14px;border-radius:2px;animation:fall linear forwards}@keyframes fall{to{transform:translateY(110vh) rotate(720deg)}}.lecture{flex:1;display:flex;flex-direction:column}.stagebox{margin:4px 16px 0;background:var(--surface);border-radius:22px;box-shadow:var(--shadow);padding:18px;min-height:300px;display:flex;flex-direction:column;gap:12px;position:relative}.scene-name{font-size:13px;font-weight:900;text-transform:uppercase;letter-spacing:.6px;color:var(--accent)}.scene-title{font-size:24px;font-weight:900;margin:0;line-height:1.25}.beat{font-size:19px;line-height:1.5;padding:8px 12px;border-radius:12px;transition:background .25s,color .25s,opacity 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var(--green);border-radius:30px}.numrow{display:flex;flex-wrap:wrap;gap:6px;justify-content:center}.numrow span{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;font-weight:900;font-size:18px;background:var(--surface-2);transition:background .3s,color .3s}.numrow span.even{background:var(--blue-soft);color:var(--blue)}.numrow span.odd{background:var(--amber-soft);color:var(--amber)}.big-num{font-size:52px;font-weight:900;text-align:center}.big-num .last{color:var(--amber);text-decoration:underline;text-underline-offset:8px}.tip{display:flex;gap:10px;padding:12px 14px;border-radius:14px;background:var(--amber-soft);border-left:4px solid var(--amber);font-size:16px}.tip .icon{color:var(--amber);font-size:20px;flex:none;margin-top:2px}.outro{text-align:center;display:flex;flex-direction:column;align-items:center;gap:10px;padding:10px}.outro img{height:170px}.rule-line{font-size:19px;line-height:1.7}.pill{display:inline-block;padding:1px 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14px;border-bottom:1px solid var(--line)}.list .li:last-child{border-bottom:0}.list .li .grow{min-width:0}.section-title{margin:22px 18px 8px;font-size:15px;font-weight:900;color:var(--ink-2);text-transform:uppercase;letter-spacing:.5px}.bar-track{height:9px;background:var(--surface-2);border-radius:99px;overflow:hidden}.bar-track i{display:block;height:100%;background:var(--green);border-radius:99px}.badges{display:grid;grid-template-columns:repeat(auto-fill,minmax(104px,1fr));gap:10px;margin:0 16px}.badge{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:12px 8px;text-align:center}.badge .medal{width:54px;height:54px;border-radius:50%;margin:0 auto 6px;display:grid;place-items:center;font-size:26px;color:#fff;background:linear-gradient(135deg,#f5b700,#e07a00)}.badge.off .medal{background:var(--line);color:var(--muted)}.badge b{font-size:13px;display:block;line-height:1.25}.badge span{font-size:12px;color:var(--muted)}.toggle{width:52px;height:30px;border-radius:99px;background:var(--line);position:relative;flex:none;transition:background .2s}.toggle:after{content:"";position:absolute;left:3px;top:3px;width:24px;height:24px;border-radius:50%;background:#fff;box-shadow:0 1px 3px #0003;transition:left .2s}.toggle.on{background:var(--green)}.toggle.on:after{left:25px}select.input{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 20px) 22px,calc(100% - 14px) 22px;background-size:6px 6px;background-repeat:no-repeat;padding-right:36px}.dialog-backdrop{position:fixed;inset:0;background:#11182773;display:grid;place-items:end center;z-index:40;animation:fade .15s}@media (min-width: 640px){.dialog-backdrop{place-items:center}}.dialog{background:var(--surface);width:min(520px,100%);border-radius:22px 22px 0 0;padding:20px 16px calc(16px + var(--safe-b));max-height:88dvh;overflow:auto;animation:up .2s}@media (min-width: 640px){.dialog{border-radius:22px}}.dialog h3{margin:0 0 8px;font-size:20px;font-weight:900}@keyframes fade{0%{opacity:0}}@keyframes up{0%{transform:translateY(30px);opacity:0}}.toast{position:fixed;left:50%;top:14px;transform:translate(-50%);background:#1f2a44;color:#fff;padding:10px 16px;border-radius:99px;font-weight:800;z-index:60;display:flex;gap:8px;align-items:center;box-shadow:var(--shadow);animation:up .25s;max-width:calc(100% - 32px)}.toast .coin{width:22px;height:22px;border-radius:50%;background:radial-gradient(circle at 35% 30%,#ffe58a,#f5b700 60%,#d99200)}@media (max-width: 380px){.q-text{font-size:20px}.opt{font-size:18px;min-height:58px}.stats .stat b{font-size:22px}}@media (prefers-reduced-motion: reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important}}