:root{--bg:#0d1117;--panel:#131920;--border:#232a33;--text:#e6edf3;--muted:#8b949e;--accent:#4aa3df;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{min-height:100vh;margin:0}.shell{flex-direction:column;gap:16px;max-width:1500px;min-height:100vh;margin:0 auto;padding:0 22px 28px;display:flex}.topbar{z-index:20;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);background:#0d1117db;justify-content:space-between;align-items:center;gap:16px;padding:12px 0;display:flex;position:sticky;top:0}.brand-link{color:var(--text);align-items:center;gap:11px;text-decoration:none;display:flex}.brand-mark{background:radial-gradient(circle at 32% 30%,#ffe9a8,#e9a23b);border-radius:50%;flex:none;width:15px;height:15px}.brand-link strong{letter-spacing:-.01em;font-size:14.5px;display:block}.brand-link small{color:var(--muted);margin-top:2px;font-size:11.5px;display:block}.tabs{background:var(--panel);border:1px solid var(--border);border-radius:10px;gap:4px;padding:3px;display:flex}.tab{color:var(--muted);border-radius:7px;padding:7px 18px;font-size:13px;text-decoration:none}.tab:hover{color:var(--text)}.tab.active{color:var(--text);background:#24303e}.ghost{border:1px solid var(--border);color:var(--muted);white-space:nowrap;border-radius:8px;padding:7px 12px;font-size:12px;text-decoration:none}.ghost:hover{color:var(--text);border-color:var(--accent)}.player-grid{grid-template-columns:minmax(0,1.35fr) minmax(340px,1fr);gap:16px;min-height:0;display:grid}.stage{border:1px solid var(--border);background:#0d1117;border-radius:14px;min-height:430px;position:relative;overflow:hidden}.legend{color:var(--muted);pointer-events:none;flex-direction:column;gap:6px;font-size:12px;display:flex;position:absolute;top:12px;left:14px}.legend span{align-items:center;gap:7px;display:flex}.legend i{border-radius:50%;width:9px;height:9px}.hint{color:#5b636d;pointer-events:none;font-size:10.5px;position:absolute;bottom:12px;right:14px}.loading{color:var(--muted);pointer-events:none;place-items:center;font-size:13px;display:grid;position:absolute;inset:0}.panel{flex-direction:column;gap:12px;min-width:0;display:flex}.chart,.metrics{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:12px 14px}.chart h3,.metrics h3{color:var(--muted);letter-spacing:.03em;margin:0 0 6px;font-size:12px;font-weight:600}.metrics table{border-collapse:collapse;font-variant-numeric:tabular-nums;width:100%;font-size:12px}.metrics th{text-align:right;color:var(--muted);border-bottom:1px solid var(--border);padding:4px 0;font-weight:500}.metrics th:first-child,.metrics td:first-child{text-align:left}.metrics td{text-align:right;padding:5px 0}.metrics .dot{border-radius:50%;width:8px;height:8px;margin-right:7px;display:inline-block}.metrics .note{color:var(--muted);margin:10px 0 0;font-size:11.5px;line-height:1.5}.controls{background:var(--panel);border:1px solid var(--border);border-radius:14px;flex-direction:column;gap:12px;padding:14px;display:flex}.row{align-items:center;gap:12px;display:flex}.row.wrap{flex-wrap:wrap}.group{flex-direction:column;gap:5px;display:flex}.group.grow{flex:1;min-width:200px}.group label{color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-size:10.5px}button,select{font:inherit;color:var(--text);border:1px solid var(--border);cursor:pointer;background:#1b222c;border-radius:8px;padding:7px 12px}button:hover,select:hover{border-color:#3d4653}.play{background:var(--accent);border-color:var(--accent);color:#06121c;min-width:84px;font-weight:600}.segmented{display:flex}.segmented button{border-radius:0;padding:6px 11px;font-size:12px}.segmented button:first-child{border-radius:8px 0 0 8px}.segmented button:last-child{border-radius:0 8px 8px 0}.segmented button+button{border-left:none}.segmented button.on{color:var(--text);background:#24303e;border-color:#3d4653}.scrub{accent-color:var(--accent);flex:1;min-width:120px}.time{font-variant-numeric:tabular-nums;color:var(--muted);text-align:right;min-width:58px;font-size:13px}.chip{opacity:.42;align-items:center;gap:7px;padding:6px 11px;font-size:12px;display:inline-flex}.chip.on{opacity:1;border-color:var(--c)}.chip .dot{background:var(--c);border-radius:50%;width:9px;height:9px}.warn{color:#e3b341;background:#e3b34114;border:1px solid #e3b34140;border-radius:8px;margin:0;padding:9px 11px;font-size:12px;line-height:1.55}.error{color:#ff9a92;background:#e5534b1a;border:1px solid #6b2b2b;border-radius:10px;padding:12px 14px;font-size:13px}.sitefoot{border-top:1px solid var(--border);color:var(--muted);text-align:center;margin-top:auto;padding-top:20px;font-size:11.5px;line-height:1.6}.sitefoot p{margin:0}.colophon{font-size:12px;margin-top:7px!important}.colophon strong{color:var(--text);font-weight:600}.colophon a{color:var(--muted);border-bottom:1px solid var(--border);text-decoration:none}.colophon a:hover{color:var(--accent);border-color:var(--accent)}.crash{max-width:640px;padding:60px 0}.crash h1{letter-spacing:-.02em;margin:0 0 10px;font-size:24px}.route-loading{min-height:60vh;color:var(--muted);place-items:center;font-size:13px;display:grid}.page{flex-direction:column;gap:18px;display:flex}.page-head h1,.page-head h2{letter-spacing:-.02em;margin:0 0 6px}.page-head h1{font-size:30px}.page-head h2{font-size:22px}.lede{color:var(--muted);max-width:78ch;margin:0;font-size:14.5px;line-height:1.65}.player{flex-direction:column;gap:12px;display:flex}.prose{gap:34px;width:100%;max-width:900px;margin:0 auto}.prose section>h2{letter-spacing:-.015em;margin:0 0 12px;font-size:21px}.prose h3{margin:22px 0 8px;font-size:15px}.prose p,.prose li{color:#c3cdd8;font-size:14.5px;line-height:1.72}.prose ul,.prose ol{padding-left:20px}.prose li{margin-bottom:9px}.prose code{border:1px solid var(--border);overflow-wrap:anywhere;background:#1b222c;border-radius:5px;padding:1px 5px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9em}.hero{padding:34px 0 4px}.hero h1{letter-spacing:-.025em;max-width:20ch;margin:0 0 14px;font-size:36px;line-height:1.18}.hero-actions{gap:10px;margin-top:22px;display:flex}.btn{font:inherit;color:var(--text);border:1px solid var(--border);cursor:pointer;background:#1b222c;border-radius:9px;padding:10px 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9px;font-size:11px}.card p:last-child{margin:0;font-size:13.3px;line-height:1.62}.figures{flex-direction:column;gap:18px;display:flex}.figure{background:var(--panel);border:1px solid var(--border);border-radius:14px;margin:0;padding:18px}.figure-head{align-items:baseline;gap:13px;margin-bottom:13px;display:flex}.figure-num{color:var(--accent);border:1px solid var(--border);border-radius:6px;flex:none;padding:3px 7px;font-family:ui-monospace,monospace;font-size:12px}.figure-head h3{letter-spacing:-.01em;margin:0;font-size:17px}.figure .caption{color:var(--muted);margin:4px 0 0;font-size:12.5px}.figure img{background:#fff;border-radius:9px;width:100%;height:auto;display:block}.figure figcaption{max-width:88ch;margin-top:13px}.figure figcaption p{color:#c3cdd8;margin:0 0 9px;font-size:13.8px;line-height:1.68}.takeaway{border-left:3px solid var(--accent);padding:3px 0 3px 12px;font-weight:500;color:var(--text)!important}.try-grid{grid-template-columns:minmax(0,1fr) minmax(300px,340px);align-items:start;gap:16px;display:grid}.try-stage{background:var(--panel);border:1px solid var(--border);border-radius:14px;flex-direction:column;gap:12px;padding:14px;display:flex}.ball-canvas{width:100%;height:380px;display:block}.trace-canvas{border-top:1px solid var(--border);width:100%;height:150px;padding-top:6px;display:block}.readouts{grid-template-columns:repeat(auto-fit,minmax(92px,1fr));gap:8px;display:grid}.readout{border:1px solid var(--border);background:#0f1520;border-radius:9px;padding:8px 10px}.readout span{color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-size:10px;display:block}.readout b{font-variant-numeric:tabular-nums;margin-top:3px;font-size:14px;display:block}.try-panel{flex-direction:column;gap:12px;display:flex}.panel-block{background:var(--panel);border:1px solid var(--border);border-radius:14px;flex-direction:column;gap:11px;padding:14px;display:flex}.panel-block h3{color:var(--muted);text-transform:uppercase;letter-spacing:.07em;margin:0;font-size:11px;font-weight:600}.slider{flex-direction:column;gap:5px;display:flex}.slider-label{color:var(--muted);justify-content:space-between;font-size:12.5px;display:flex}.slider-label b{color:var(--text);font-variant-numeric:tabular-nums}.slider input{accent-color:var(--accent);width:100%}.presets{flex-wrap:wrap;gap:7px;display:flex}.preset{padding:6px 11px;font-size:12px}.try-panel .note{color:var(--muted);margin:2px 0 0;font-size:11.8px;line-height:1.6}.try-panel .note.good{color:#4ade80}@media (width<=980px){.player-grid,.try-grid{grid-template-columns:1fr}.stage{min-height:330px}.topbar{flex-wrap:wrap}.hero h1{font-size:27px}}