:root{--bg: #0e0e10;--surface: #17171a;--surface-2: #1f1f23;--border: #2c2c31;--border-strong: #3a3a41;--text: #ededf0;--text-dim: #9a9aa2;--text-faint: #6a6a72;--accent: #ededf0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color-scheme:dark}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}.app{max-width:980px;margin:0 auto;padding:24px 20px 48px}.header{display:flex;align-items:baseline;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:20px}.header h1{font-size:20px;font-weight:500;margin:0;letter-spacing:-.01em}.header .sub{font-size:13px;color:var(--text-faint)}.header a{color:var(--text-dim);text-decoration:none;border-bottom:1px solid var(--border-strong)}.viz{width:100%;height:240px;display:block;background:var(--surface);border:1px solid var(--border);border-radius:10px}.transport{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:14px 0;padding:12px 14px;background:var(--surface);border:1px solid var(--border);border-radius:10px}button{font:inherit;color:var(--text);background:var(--surface-2);border:1px solid var(--border-strong);border-radius:8px;padding:8px 14px;cursor:pointer}button:hover:not(:disabled){background:#26262b}button:disabled{opacity:.4;cursor:default}button.primary{background:var(--accent);color:#0e0e10;border-color:var(--accent)}select,input[type=range]{font:inherit}select{color:var(--text);background:var(--surface-2);border:1px solid var(--border-strong);border-radius:8px;padding:7px 10px}label{font-size:13px;color:var(--text-dim);display:inline-flex;align-items:center;gap:8px}.grid-controls{display:flex;gap:14px;flex-wrap:wrap;align-items:center}.matrix{width:100%;border-collapse:collapse;margin-top:8px;font-size:13px}.matrix th,.matrix td{padding:7px 6px;text-align:center;border-bottom:1px solid var(--border)}.matrix th{color:var(--text-dim);font-weight:400;font-size:12px}.matrix td.ch{text-align:left;white-space:nowrap}.matrix td.ch .src{color:var(--text-faint);font-size:11px}.cell{width:26px;height:26px;border-radius:50%;border:none;background:transparent;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;padding:0}.dot{width:14px;height:14px;border-radius:50%}.dot.off{width:8px;height:8px;border:1px solid var(--border-strong)}.dot.on{background:var(--accent)}.dot.inv{border:1.5px solid var(--accent)}.legend{display:flex;gap:16px;margin-top:10px;font-size:11px;color:var(--text-faint);align-items:center}.legend span{display:inline-flex;align-items:center;gap:6px}.legend .s{width:12px;height:12px;border-radius:50%;display:inline-block}.section-label{font-size:12px;color:var(--text-faint);margin:22px 0 6px}.status{font-size:12px;color:var(--text-faint);min-height:16px}