:root{--bg: #f4f4f5;--text: #2a2d35;--card: #ffffff;--border: #cbd5e1;--muted: #475569;--muted-2: #64748b;--coral: #e8552e;--coral-dark: #cf4622;--purple-700: #3a3084;--purple-600: #4a3da8;--dark: #000000;--media: #0f172a}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,sans-serif;font-size:13px;display:flex;flex-direction:column;overflow:hidden;-webkit-font-smoothing:antialiased}h1,h2,h3{font-weight:800;letter-spacing:-.04em}::selection{background:var(--coral);color:#fff}#topbar{background:var(--dark);color:#cfcfcf;display:flex;align-items:center;gap:16px;padding:10px 16px;flex:0 0 auto}#topbar .logo{height:26px;width:auto}#topbar .brand{display:flex;flex-direction:column}#topbar .kicker{font-size:9px;font-weight:700;text-transform:uppercase;letter-spacing:.12em;color:var(--coral)}#topbar h1{font-size:17px;color:#fff;line-height:1.15}#topbar h1 .serif{font-family:"Instrument Serif",Georgia,serif;font-style:italic;font-weight:400;font-size:1.2em;color:var(--coral);letter-spacing:0}#topbar .brand-sub{flex:1;font-size:11px;color:#8b8b96;margin-left:8px}#readyChip{border:1px solid #475569;color:#e2e8f0;font-size:11px;font-weight:700;padding:5px 12px;white-space:nowrap}#layout{flex:1 1 auto;display:grid;grid-template-columns:248px 1fr;min-height:0;gap:10px;padding:10px}.panel{overflow-y:auto;display:flex;flex-direction:column;gap:10px;min-height:0}.panel section{background:var(--card);border:1px solid var(--border);padding:14px;display:flex;flex-direction:column;gap:9px}.panel h2{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--purple-700)}.panel h2 .num{display:grid;place-items:center;width:22px;height:22px;background:var(--coral);color:#fff;font-size:12px;font-weight:700;letter-spacing:0;flex:0 0 auto}.panel h3{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--muted-2);margin-top:2px}.hint{color:var(--muted);font-size:11px;line-height:1.5}.hint code{font-family:ui-monospace,Consolas,monospace;font-size:10px;background:var(--bg);border:1px solid var(--border);padding:0 4px}button{background:var(--card);border:1px solid var(--border);color:#334155;font-family:inherit;font-size:12px;font-weight:700;padding:7px 10px;cursor:pointer;transition:border-color .12s,color .12s,background .12s}button:hover{border-color:var(--coral);color:var(--coral)}button:disabled{opacity:.35;cursor:not-allowed}button:disabled:hover{border-color:var(--border);color:#334155}button.toggle.active{background:var(--coral);border-color:var(--coral);color:#fff}button.wide{width:100%}button.rec.active{background:#dc2626;border-color:#dc2626;color:#fff}.btn-row{display:flex;gap:6px}.btn-row button{flex:1}.btn-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px}.slider-label{display:flex;justify-content:space-between;font-size:11px;font-weight:600;color:var(--muted)}.slider-label span{color:var(--text);font-weight:700;font-variant-numeric:tabular-nums}input[type=range]{-webkit-appearance:none;width:100%;height:4px;background:var(--border);outline:none}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:12px;height:12px;background:var(--coral);cursor:pointer}.check{display:flex;align-items:center;gap:7px;font-size:12px;font-weight:600;color:#334155;cursor:pointer}.check input{accent-color:var(--coral)}#stage{min-width:0;min-height:0;display:grid}.viewport{position:relative;background:var(--media);border:1px solid var(--border);overflow:hidden;min-width:0;min-height:0}.viewport canvas{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%}.viewport-label{position:absolute;top:10px;left:10px;z-index:5;background:var(--purple-700);color:#fff;font-size:10px;font-weight:700;letter-spacing:.12em;padding:4px 9px;pointer-events:none}.viewport-hint{position:absolute;top:10px;right:10px;z-index:5;background:#0f172abf;color:#cbd5e1;font-size:10px;padding:4px 9px;pointer-events:none}.tl-buttons{display:flex;gap:6px}.tl-buttons button{flex:1}#pathTimeline{position:absolute;left:50%;transform:translate(-50%);bottom:12px;z-index:6;width:min(440px,70%);background:var(--card);border:1px solid var(--border);padding:9px 14px;display:flex;align-items:center;gap:10px}.pt-label{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}.pt-track{position:relative;flex:1;height:4px;background:var(--border)}.pt-fill{position:absolute;left:0;top:0;bottom:0;width:0%;background:var(--coral)}.pt-dot{position:absolute;top:50%;transform:translate(-50%,-50%);width:10px;height:10px;border-radius:50%;background:var(--card);border:2px solid var(--coral);cursor:pointer}.pt-dot:hover{transform:translate(-50%,-50%) scale(1.3)}.pt-dot.done{background:var(--coral)}button.icon{width:32px;height:32px;padding:0;display:grid;place-items:center}button.icon svg{width:14px;height:14px;fill:currentColor}button.icon.active{background:var(--coral);border-color:var(--coral);color:#fff}button.icon.rec{color:#dc2626}button.icon.rec:hover{border-color:#dc2626;color:#dc2626}button.icon.rec.active{background:#dc2626;border-color:#dc2626;color:#fff}.panel::-webkit-scrollbar{width:8px}.panel::-webkit-scrollbar-thumb{background:var(--border)}