:root{--bg:#000;--text:#f5f5f7;--muted:#86868b;--hairline:#ffffff1f;--glass:#1d1d1fb8;--accent:#0071e3;--accent-hover:#0077ed;--link:#2997ff;--radius:18px;--font:-apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Inter", "Helvetica Neue", Arial, sans-serif;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}html,body{background:var(--bg);height:100%;color:var(--text);font-family:var(--font);margin:0}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;letter-spacing:-.003em}button{font:inherit;color:inherit;cursor:pointer;background:0 0;border:0;padding:0}a{color:var(--link);text-decoration:none}.nav{z-index:20;height:48px;padding:0 max(22px, env(safe-area-inset-left));-webkit-backdrop-filter:saturate(180%)blur(20px);border-bottom:1px solid var(--hairline);background:#0009;justify-content:space-between;align-items:center;display:flex;position:fixed;inset:0 0 auto}.wordmark{letter-spacing:-.02em;font-size:17px;font-weight:600}.wordmark span{color:var(--muted);font-weight:400}.nav-link{color:var(--muted);font-size:12px}.hero{text-align:center;max-width:980px;margin:0 auto;padding:132px 22px 56px}.eyebrow{color:var(--muted);margin:0 0 10px;font-size:17px;font-weight:600}.hero h1{letter-spacing:-.035em;background:linear-gradient(#fff 0%,#c7c7cc 100%);color:#0000;-webkit-background-clip:text;background-clip:text;margin:0;font-size:clamp(44px,7vw,80px);font-weight:700;line-height:1.05}.hero p{color:var(--muted);max-width:660px;margin:22px auto 0;font-size:clamp(19px,2.2vw,24px);font-weight:500;line-height:1.38}.grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:28px;max-width:1120px;margin:0 auto;padding:8px 22px 120px;display:grid}.card{color:var(--text);transition:transform .5s cubic-bezier(.2,.8,.2,1);display:block}.card:hover{transform:translateY(-4px)}.thumb{aspect-ratio:9/16;border-radius:var(--radius);box-shadow:0 0 0 1px var(--hairline) inset;background:#111;position:relative;overflow:hidden}.thumb img,.thumb video{object-fit:cover;width:100%;height:100%;display:block}.thumb video{opacity:0;transition:opacity .4s;position:absolute;inset:0}.card:hover .thumb video{opacity:1}.card h3{letter-spacing:-.015em;margin:14px 2px 4px;font-size:19px;font-weight:600}.card .meta{color:var(--muted);margin:0 2px;font-size:14px}.empty{text-align:center;color:var(--muted);margin:0;padding:40px 22px 140px;font-size:19px}.feature{text-align:center;max-width:1120px;margin:0 auto 96px;padding:0 22px}.feature-frame{aspect-ratio:9/16;width:min(420px,78vw);box-shadow:0 0 0 1px var(--hairline) inset;background:#0a0a0a;border-radius:28px;margin:0 auto;display:block;overflow:hidden}.feature-frame video{object-fit:cover;width:100%;height:100%;display:block}.feature-caption{color:var(--muted);margin:18px 0 0;font-size:15px}.section-title{letter-spacing:-.025em;max-width:1120px;margin:0 auto 22px;padding:0 22px;font-size:32px;font-weight:700}.stage{background:radial-gradient(120% 90% at 50% 75%,#1c1c1e 0%,#000 60%);position:fixed;inset:0}.stage canvas{width:100%;height:100%;display:block}.topbar{z-index:10;pointer-events:none;grid-template-columns:1fr auto 1fr;align-items:center;height:56px;padding:0 18px;display:grid;position:fixed;inset:0 0 auto}.topbar>*{pointer-events:auto}.back{color:var(--link);align-items:center;gap:4px;font-size:17px;display:inline-flex}.back svg{width:12px;height:20px}.title{letter-spacing:-.02em;text-align:center;font-size:17px;font-weight:600}.subtitle{color:var(--link);letter-spacing:0;min-height:14px;margin-top:2px;font-size:12px;font-weight:500}.pill{color:var(--text);white-space:nowrap;background:#ffffff1a;border-radius:980px;flex:none;padding:8px 13px;font-size:13px;font-weight:500}.pill:hover{background:#ffffff29}.pill.on{color:var(--link);background:#2997ff38}.pill[hidden]{display:none}.loader{z-index:15;background:#000;place-items:center;transition:opacity .8s,visibility .8s;display:grid;position:fixed;inset:0}.loader.done{opacity:0;visibility:hidden}.loader-inner{text-align:center}.ring{width:44px;height:44px;margin:0 auto 22px}.ring circle{fill:none;stroke-width:3px}.ring .track{stroke:#ffffff1f}.ring .bar{stroke:var(--text);stroke-linecap:round;transform-origin:50%;transition:stroke-dashoffset .3s;transform:rotate(-90deg)}.loader h2{letter-spacing:-.02em;margin:0 0 6px;font-size:28px;font-weight:600}.loader p{color:var(--muted);font-variant-numeric:tabular-nums;margin:0;font-size:15px}.controls{left:50%;bottom:max(28px, env(safe-area-inset-bottom));z-index:10;background:var(--glass);-webkit-backdrop-filter:saturate(180%)blur(24px);width:min(620px,100% - 32px);box-shadow:0 0 0 1px var(--hairline) inset, 0 20px 50px #00000080;border-radius:22px;align-items:center;gap:14px;padding:10px 12px 10px 10px;display:flex;position:fixed;transform:translate(-50%)}.play{background:#ffffff1a;border-radius:50%;flex:none;place-items:center;width:40px;height:40px;display:grid}.play:hover{background:#ffffff29}.play svg{width:16px;height:16px;fill:var(--text)}.time{color:var(--muted);font-variant-numeric:tabular-nums;text-align:right;flex:none;min-width:74px;font-size:13px}input[type=range]{appearance:none;background:#ffffff2e;border-radius:2px;outline:none;flex:1;height:4px}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;background:#fff;border-radius:50%;width:14px;height:14px;box-shadow:0 1px 4px #0006}input[type=range]::-moz-range-thumb{background:#fff;border:0;border-radius:50%;width:14px;height:14px}.segmented{background:#ffffff14;border-radius:10px;flex:none;padding:2px;display:flex}.segmented button{color:var(--muted);font-variant-numeric:tabular-nums;border-radius:8px;padding:6px 9px;font-size:12px;font-weight:600}.segmented button.on{color:var(--text);background:#ffffff2e}.cta{background:var(--accent);color:#fff;white-space:nowrap;border-radius:980px;flex:none;padding:9px 16px;font-size:14px;font-weight:500}.cta:hover{background:var(--accent-hover)}.cta[hidden]{display:none}.court-load{background:#ffffff1f;border-radius:2px;flex:1;height:4px;overflow:hidden}.court-load i{background:var(--link);width:0;height:100%;transition:width .25s linear;display:block}.court-load-text{color:var(--muted);font-variant-numeric:tabular-nums;flex:none;font-size:13px}.court-load[hidden],.court-load-text[hidden]{display:none}#court-stage.stage{background:radial-gradient(60% 45% at 50% 52%,#466ec838,#1e326e14 55%,#0000 80%),#000}#court-stage~.topbar{text-align:center;height:auto;padding:0 24px;animation:.6s cubic-bezier(.2,.8,.2,1) both court-rise;display:block;inset:auto 0 calc(50% + 30px)}#court-stage~.topbar .title{letter-spacing:-.03em;background:linear-gradient(#fff 30%,#c8d7ffc7);color:#0000;text-shadow:0 0 40px #82aaff2e;-webkit-background-clip:text;background-clip:text;font-size:48px;font-weight:700;line-height:1.08}#court-stage~.topbar .subtitle{letter-spacing:-.012em;color:#ebebf599;max-width:560px;min-height:23px;margin:10px auto 0;font-size:17px;font-weight:500;line-height:1.35}#court-stage~.controls{-webkit-backdrop-filter:blur(30px)saturate(1.4);backdrop-filter:blur(30px)saturate(1.4);background:radial-gradient(70% 50% at 50% -10%,#ffffff38,#0000 70%),linear-gradient(#84869680,#4042509e);border-radius:30px;flex-wrap:wrap;gap:0;width:min(380px,100% - 32px);padding:20px 18px 18px;animation:.6s cubic-bezier(.2,.8,.2,1) 80ms both court-rise-card;top:calc(50% - 4px);bottom:auto;box-shadow:inset 0 1px #fff6,inset 0 0 0 1px #ffffff1a,0 0 0 1px #96beff2e,0 0 50px #78aaff29,0 30px 70px #000000b3,0 2px 10px #00000073}#court-stage~.controls .court-load{background:#ffffff1a;border-radius:3px;flex:100%;height:6px;margin:4px 4px 0;transition:opacity .25s,height .35s cubic-bezier(.2,.8,.2,1) .1s,margin .35s cubic-bezier(.2,.8,.2,1) .1s}#court-stage~.controls .court-load i{border-radius:inherit;background:linear-gradient(90deg,#96beffcc,#fff 70%,#fff) 0 0/200% 100%;transition:width .45s cubic-bezier(.2,.8,.2,1);animation:1.6s linear infinite court-shimmer;box-shadow:0 0 12px #a0c8ff8c}#court-stage~.controls .court-load-text{text-align:center;color:#ebebf580;flex:100%;height:18px;margin:10px 4px 16px;font-size:13px;font-weight:500;line-height:18px;transition:opacity .25s,height .35s cubic-bezier(.2,.8,.2,1) .1s,margin .35s cubic-bezier(.2,.8,.2,1) .1s;display:block;overflow:hidden}#court-stage~.controls .court-load[hidden],#court-stage~.controls .court-load-text[hidden]{opacity:0;height:0;margin-top:0;margin-bottom:0;display:block}#court-stage~.controls .cta{letter-spacing:-.012em;background:#0a84ff;border-radius:25px;flex:100%;height:50px;padding:0 24px;font-size:17px;font-weight:600;transition:background-color .3s,color .3s,box-shadow .3s,transform .2s cubic-bezier(.2,.8,.2,1);box-shadow:inset 0 1px #ffffff47,0 10px 28px #0a84ff52}#court-stage~.controls .cta:hover:not(:disabled){background:#2b95ff}#court-stage~.controls .cta:active:not(:disabled){transform:scale(.98)}#court-stage~.controls .cta:disabled{color:#ebebf557;cursor:default;background:#ffffff14;box-shadow:inset 0 1px #ffffff0f}@keyframes court-shimmer{0%{background-position:100% 0}to{background-position:-100% 0}}@keyframes court-rise{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}@keyframes court-rise-card{0%{opacity:0;transform:translate(-50%,12px)scale(.98)}to{opacity:1;transform:translate(-50%)}}@media (prefers-reduced-motion:reduce){#court-stage~.topbar,#court-stage~.controls,#court-stage~.controls .court-load i{animation:none}}.hint{z-index:9;color:var(--muted);font-size:13px;position:fixed;top:64px;left:50%;transform:translate(-50%)}@media (width<=640px){.controls{flex-wrap:wrap;justify-content:center;gap:8px 10px}.controls #scrub{flex:calc(100% - 60px);min-width:0}.time{display:none}.segmented button{padding:6px 7px}.controls .pill{padding:6px 11px;font-size:13px}#place>span:first-child{display:none}.cue{bottom:calc(max(28px, env(safe-area-inset-bottom)) + 128px)}.step-card{bottom:calc(max(28px, env(safe-area-inset-bottom)) + 128px)!important}}.chess-controls{flex-wrap:wrap;justify-content:center;width:auto;max-width:calc(100% - 32px)}.legend-note{left:50%;bottom:calc(max(28px, env(safe-area-inset-bottom)) + 78px);color:var(--muted);z-index:9;margin:0;font-size:12px;position:fixed;transform:translate(-50%)}.famous-card{z-index:9;background:var(--glass);-webkit-backdrop-filter:saturate(180%)blur(24px);width:300px;box-shadow:0 0 0 1px var(--hairline) inset, 0 20px 50px #00000080;border-radius:22px;padding:18px 20px 14px;position:fixed;top:50%;left:24px;transform:translateY(-50%)}.famous-card[hidden]{display:none}.famous-card p{margin:0}.famous-eyebrow{color:var(--link);font-size:13px;font-weight:600}.famous-card h3{letter-spacing:-.01em;margin:4px 0 0;font-size:21px;font-weight:600}.famous-where{color:var(--muted);font-size:13px;margin-top:2px!important}.famous-status{min-height:2.8em;font-size:15px;font-weight:500;line-height:1.4;margin-top:12px!important}.famous-foot{border-top:1px solid var(--hairline);justify-content:space-between;align-items:center;gap:8px;margin-top:12px;padding-top:12px;display:flex}.famous-score{color:var(--muted);font-variant-numeric:tabular-nums;font-size:13px}.famous-fine{color:var(--muted);font-size:11px;margin-top:8px!important}@media (width<=720px){.famous-card{width:auto;padding:14px 16px 12px;top:76px;left:16px;right:16px;transform:none}.famous-card h3{font-size:18px}.famous-status{min-height:0}}.cue{left:50%;bottom:calc(max(28px, env(safe-area-inset-bottom)) + 84px);-webkit-backdrop-filter:blur(20px);color:#f5f5f7;text-align:center;white-space:pre-line;z-index:9;background:#1d1d1fb8;border-radius:14px;max-width:min(720px,100% - 32px);margin:0;padding:10px 18px;font-size:19px;line-height:1.35;position:fixed;transform:translate(-50%)}.thumb .initial{letter-spacing:-.02em;color:var(--muted);opacity:.5;place-items:center;font-size:64px;font-weight:600;display:grid;position:absolute;inset:0}.nav-links{gap:20px;display:flex}.step-card{z-index:9;background:var(--glass);-webkit-backdrop-filter:saturate(180%)blur(24px);width:300px;box-shadow:0 0 0 1px var(--hairline) inset, 0 20px 50px #00000080;border-radius:22px;padding:20px 20px 16px;position:fixed;top:50%;right:24px;transform:translateY(-50%)}.step-card[hidden]{display:none}.step-count{color:var(--muted);margin:0 0 6px;font-size:13px;font-weight:600}.step-card.turn .step-count{color:var(--link)}.step-card h3{letter-spacing:-.01em;margin:0;font-size:21px;font-weight:600}.step-tip{color:#d1d1d6;margin:8px 0 0;font-size:15px;line-height:1.4}.step-progress{visibility:hidden;background:#ffffff1a;border-radius:2px;height:4px;margin:14px 0 12px;overflow:hidden}.step-card.turn .step-progress{visibility:visible}.step-progress i{background:var(--link);width:0;height:100%;display:block}.step-nav{gap:8px;display:flex}.step-nav .pill{flex:1}.coach{background:#ffffff0f;border-radius:14px;margin:12px 0 0;padding:10px 12px}.coach[hidden],.coach p[hidden]{display:none}.coach-q{color:var(--muted);margin:0;font-size:13px;line-height:1.35}.coach-a{color:var(--text);max-height:8.4em;margin:0;font-size:15px;line-height:1.4;overflow-y:auto}.coach-q+.coach-a{margin-top:6px}.ask{width:100%;color:var(--text);background:#ffffff1a;border-radius:980px;justify-content:center;align-items:center;gap:7px;margin-top:8px;padding:9px 13px;font-size:13px;font-weight:500;transition:background-color .2s,color .2s;display:flex}.ask:hover{background:#ffffff29}.ask.on{color:var(--link);background:#2997ff38}.ask[hidden]{display:none}.ask:focus-visible{outline:2px solid var(--link);outline-offset:2px}.ask>svg{fill:currentColor;flex:none;width:14px;height:14px}.talk-btn{left:50%;bottom:calc(max(28px, env(safe-area-inset-bottom)) + 76px);z-index:10;-webkit-backdrop-filter:blur(20px);width:auto;margin:0;padding:11px 20px;font-size:15px;position:fixed;transform:translate(-50%)}.ask-level{align-items:center;gap:2px;height:14px;display:none}.ask[data-state=listening] .ask-level{display:inline-flex}.ask-level i{width:3px;height:calc(4px + var(--level,0) * 6px);background:currentColor;border-radius:2px;transition:height 90ms linear;display:block}.ask-level i:nth-child(2){height:calc(4px + var(--level,0) * 10px)}.ask[data-state=thinking]{animation:1.6s ease-in-out infinite ask-breathe}@keyframes ask-breathe{50%{opacity:.55}}@media (prefers-reduced-motion:reduce){.ask,.ask-level i{transition:none}.ask[data-state=thinking]{animation:none}}@media (width<=720px){.step-card{width:auto;top:auto;left:16px;right:16px;bottom:calc(max(28px, env(safe-area-inset-bottom)) + 84px);transform:none}}