:root{--bg: #0b0d12;--panel: #12151c;--line: #232837;--text: #e6e9f2;--muted: #8b93a7;--accent: #5eead4;--accent2: #f472b6;color-scheme:dark}*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font:14px/1.4 system-ui,-apple-system,Segoe UI,sans-serif}.app{display:flex;flex-direction:column;height:100dvh;max-width:1100px;margin:0 auto;padding:0 16px}header{padding:14px 0 8px}h1{margin:0;font-size:18px;font-weight:650;letter-spacing:.2px}header p{margin:2px 0 0;color:var(--muted);font-size:13px}.stage{position:relative;flex:1;min-height:240px;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:radial-gradient(circle at 50% 40%,#121623,var(--bg))}canvas{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;touch-action:none;cursor:crosshair;display:block}.hint{position:absolute;top:0;right:0;bottom:0;left:0;display:none;align-items:center;justify-content:center;color:var(--muted);font-size:16px;pointer-events:none}.hint.show{display:flex}.status{position:absolute;left:12px;bottom:10px;color:var(--accent2);font-size:12px;pointer-events:none}.error{position:absolute;right:12px;top:10px;color:var(--accent);font-size:13px;font-variant-numeric:tabular-nums;pointer-events:none;text-align:right}.credit{padding:0 0 12px;color:var(--muted);font-size:11px}.credit a{color:inherit}.controls{padding:12px 0 16px;display:flex;flex-direction:column;gap:10px}.row{display:flex;gap:14px;align-items:flex-end;flex-wrap:wrap}.field{display:flex;flex-direction:column;gap:4px;color:var(--muted);font-size:12px}.field b{color:var(--text);font-weight:600}.grow{flex:1;min-width:180px}select,button,textarea{background:var(--panel);color:var(--text);border:1px solid var(--line);border-radius:8px;padding:7px 12px;font:inherit}button{cursor:pointer}button:hover,select:hover{border-color:var(--accent)}input[type=range]{width:100%;accent-color:var(--accent)}.check{display:flex;align-items:center;gap:6px;color:var(--text)}details{color:var(--muted)}summary{cursor:pointer;font-size:12px}textarea{width:100%;margin:8px 0;font-family:ui-monospace,monospace;font-size:12px;resize:vertical}@media (max-width: 560px){header p{display:none}}