:root{--bg: #0a0c10;--panel: rgba(18, 20, 26, .78);--panel-border: rgba(255, 255, 255, .09);--text: #e8eaf0;--text-dim: #9aa1ad;--accent: #ffcc00;--accent-2: #6ea8ff;--danger: #ff6b6b;--radius: 14px;--mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;--sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}*{box-sizing:border-box}html,body{margin:0;padding:0;height:100%;overflow:hidden;background:var(--bg);color:var(--text);font-family:var(--sans);font-size:14px}#board{position:fixed;inset:0;width:100%;height:100%;display:block;touch-action:none;cursor:grab}#board.placing{cursor:crosshair}#board:active{cursor:grabbing}.glass{background:var(--panel);border:1px solid var(--panel-border);border-radius:var(--radius);backdrop-filter:blur(14px) saturate(1.2);-webkit-backdrop-filter:blur(14px) saturate(1.2);box-shadow:0 8px 32px #00000073}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}#status{position:fixed;top:12px;left:12px;z-index:20;display:flex;gap:6px;padding:6px 8px;max-width:calc(100vw - 24px);overflow-x:auto;scrollbar-width:none}.chip{display:inline-flex;gap:5px;align-items:baseline;padding:2px 8px;border-radius:8px;background:#ffffff0d;white-space:nowrap}.chip .lbl{color:var(--text-dim);font-size:10px;text-transform:uppercase;letter-spacing:.06em}.chip .val{font-family:var(--mono);font-size:12px;font-variant-numeric:tabular-nums}#transport{position:fixed;bottom:16px;left:50%;transform:translate(-50%);z-index:20;display:flex;align-items:center;gap:4px;padding:6px 8px;max-width:calc(100vw - 24px)}.tbtn{display:inline-flex;align-items:center;justify-content:center;gap:5px;min-width:34px;height:34px;padding:0 8px;border:1px solid transparent;border-radius:9px;background:#ffffff0f;color:var(--text);font:inherit;cursor:pointer}.tbtn:hover{background:#ffffff1f}.tbtn:active{background:#ffffff2e}.tbtn svg{width:18px;height:18px;fill:currentColor}.tlabel{font-size:11px;font-weight:600;font-variant-numeric:tabular-nums}.speed{display:flex;flex-direction:column;gap:2px;margin-left:8px;min-width:180px}.speed span{font-family:var(--mono);font-size:10px;color:var(--text-dim);font-variant-numeric:tabular-nums;white-space:nowrap}.speed input[type=range]{width:100%;accent-color:var(--accent);cursor:pointer}#panel{position:fixed;top:12px;right:12px;bottom:12px;width:352px;z-index:30;padding:12px 14px 20px;overflow-y:auto;scrollbar-width:thin}.panel-head{display:flex;align-items:center;justify-content:space-between;margin:0 0 4px}#panel h2{margin:0;font-size:15px;letter-spacing:.02em}#panel section{margin-top:16px;padding-top:12px;border-top:1px solid rgba(255,255,255,.06)}#panel h3{margin:0 0 8px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.09em;color:var(--text-dim)}.row{display:flex;align-items:center;gap:6px}.btn-row{margin-top:8px}.btn-row.wrap{flex-wrap:wrap}.btn{padding:6px 10px;border:1px solid var(--panel-border);border-radius:9px;background:#ffffff0f;color:var(--text);font:inherit;font-size:13px;cursor:pointer}.btn:hover{background:#ffffff1f}.btn-primary{background:var(--accent);color:#14140a;border-color:transparent;font-weight:600}.btn-primary:hover{filter:brightness(1.08)}.btn-small{padding:4px 8px;font-size:12px}.btn.on{background:var(--accent);color:#14140a;font-weight:600}.hint{margin:6px 0 0;color:var(--text-dim);font-size:12px;line-height:1.45}#panelToggle{display:none;position:fixed;right:12px;bottom:74px;z-index:40;border:1px solid var(--panel-border);font-size:13px}.notation{font-family:var(--mono);font-size:12px;padding:6px 8px;border-radius:8px;background:#ffffff0d;overflow-wrap:anywhere;min-height:16px;color:var(--accent-2)}.ant-editor .ant-input{flex:1;min-width:0;padding:7px 10px;border:1px solid var(--panel-border);border-radius:9px;background:#00000059;color:var(--text);font-family:var(--mono);font-size:14px;letter-spacing:.14em}.rule-err{margin-top:6px;color:var(--danger);font-size:12px;line-height:1.4;overflow-wrap:anywhere}.dim{color:var(--text-dim);font-size:12px;white-space:nowrap}.matrix-editor{overflow-x:auto}.matrix{border-collapse:collapse;font-size:11px}.matrix th,.matrix td{border:1px solid rgba(255,255,255,.08);padding:3px}.matrix-corner{font-size:9px;font-weight:600;color:var(--text-dim);text-align:center}.matrix-state{font-family:var(--mono);color:var(--accent-2);text-align:center}.matrix-color{text-align:center}.swatch-dot{display:inline-block;width:12px;height:12px;border-radius:3px;vertical-align:middle;box-shadow:inset 0 0 0 1px #00000059}.swatch-idx{margin-left:3px;font-family:var(--mono);color:var(--text-dim);font-size:10px}.cell-selects{display:flex;gap:2px}.cell-selects select{max-width:66px;padding:2px;border:1px solid rgba(255,255,255,.1);border-radius:5px;background:#0006;color:var(--text);font-size:10px}.swatches{display:flex;flex-wrap:wrap;gap:5px;margin-top:10px;position:relative}.swatch{width:24px;height:24px;border-radius:6px;border:1px solid rgba(255,255,255,.18);cursor:pointer;padding:0}.swatch:hover{outline:2px solid var(--accent)}.swatch-menu{position:absolute;z-index:50;display:flex;flex-direction:column;gap:2px;padding:6px;min-width:160px;background:#0e1014f7;border:1px solid var(--panel-border);border-radius:10px;box-shadow:0 10px 30px #0009}.swatch-menu-item{display:flex;align-items:center;gap:8px;padding:5px 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0;font-size:12px;line-height:1.5;color:#c3c8d2}.preset-milestone{margin-top:5px;font-size:11px;color:var(--accent)}.preset-foot{display:flex;align-items:center;gap:6px;margin-top:9px}.preset-src{margin-left:auto;color:var(--accent-2);font-size:12px;text-decoration:none}.preset-src:hover{text-decoration:underline}select{max-width:200px;padding:5px 8px;border:1px solid var(--panel-border);border-radius:8px;background:#0006;color:var(--text);font:inherit}#paletteSelect{flex:1;min-width:0}label.row{justify-content:space-between;gap:10px}.help-overlay{display:none;position:fixed;inset:0;z-index:60;align-items:center;justify-content:center;background:#0405088c}.help-overlay.open{display:flex}.help-card{width:min(420px,calc(100vw - 32px));padding:14px 18px 18px}.help-list{margin:8px 0 0;padding:0;list-style:none;display:flex;flex-direction:column;gap:8px;font-size:13px;color:#c3c8d2}kbd{display:inline-block;min-width:22px;padding:1px 7px;margin-right:6px;border:1px solid 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ease}#panel.open{transform:translateY(0)}#panelToggle{display:inline-flex}#transport{bottom:10px;flex-wrap:wrap;justify-content:center}.speed{min-width:150px}#status{top:8px;left:8px}}.hidden{display:none!important}.docs-modal{position:fixed;inset:0;z-index:60;display:none;align-items:center;justify-content:center;background:#0009;backdrop-filter:blur(4px);padding:24px}.docs-modal.open{display:flex}.docs-card{position:relative;max-width:720px;max-height:80vh;overflow:auto;background:var(--panel, #1a1d24);color:var(--fg, #e6e8ec);border:1px solid var(--border, #2a2e38);border-radius:14px;padding:24px 28px;box-shadow:0 20px 60px #00000080;font-size:14px;line-height:1.55}.docs-card h2{margin:0 0 10px;font-size:20px}.docs-card h3{margin:16px 0 6px;font-size:15px;color:var(--accent, #7dd3fc)}.docs-card p{margin:6px 0}.docs-card ul{margin:6px 0 6px 20px;padding:0}.docs-card li{margin:4px 0}.docs-card code{font-family:ui-monospace,monospace;font-size:12.5px;background:#ffffff0f;padding:1px 5px;border-radius:4px}.docs-card .docs-foot{font-size:12px;opacity:.7;margin-top:14px}.docs-close{position:absolute;top:10px;right:12px;background:transparent;border:none;color:var(--fg, #e6e8ec);font-size:18px;cursor:pointer;opacity:.7}.docs-close:hover{opacity:1}html.light{--bg: #f4f5f7;--panel: rgba(255, 255, 255, .82);--panel-border: rgba(0, 0, 0, .1);--text: #1a1d24;--text-dim: #5a6170;--accent: #b8860b;--accent-2: #1d4ed8;--danger: #dc2626}html.light body{background:var(--bg);color:var(--text)}html.light .glass{background:var(--panel);border-color:var(--panel-border)}