:root{--bg: #0e0e10;--panel: #16161a;--line: #26262c;--text: #e8e8ec;--muted: #8a8a93;--accent: #c84a3b}*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font:13px/1.45 -apple-system,BlinkMacSystemFont,SF Pro Text,system-ui,sans-serif;overflow:hidden}#app{display:grid;grid-template-columns:280px 1fr;height:100vh}#controls{background:var(--panel);border-right:1px solid var(--line);padding:20px;overflow-y:auto;display:flex;flex-direction:column;gap:18px}#controls header h1{margin:0 0 4px;font-size:16px;font-weight:600;letter-spacing:.02em}#controls header p{margin:0;color:var(--muted);font-size:12px}.drop-zone{border:1px dashed var(--line);border-radius:8px;padding:22px 12px;text-align:center;cursor:pointer;transition:border-color .12s,background .12s}.drop-zone:hover,.drop-zone.dragover{border-color:var(--accent);background:#c84a3b0f}.drop-zone p{margin:0;color:var(--muted)}.drop-zone span{font-size:11px;opacity:.7}.sliders{display:flex;flex-direction:column;gap:14px}.slider{display:flex;flex-direction:column;gap:6px}.slider .row{display:flex;justify-content:space-between;align-items:baseline}.slider label{font-size:12px;color:var(--muted)}.slider .val{font-size:11px;color:var(--text);font-variant-numeric:tabular-nums}.slider input[type=range]{width:100%;accent-color:var(--accent)}.slider select{width:100%;background:var(--bg);color:var(--text);border:1px solid var(--line);border-radius:6px;padding:6px 8px;font:inherit}.slider select:focus{outline:1px solid var(--accent)}button{background:var(--accent);color:#fff;border:0;padding:10px 14px;border-radius:6px;font-size:13px;font-weight:500;cursor:pointer;transition:opacity .12s}button:disabled{opacity:.35;cursor:not-allowed}button:hover:not(:disabled){opacity:.92}.playback{display:flex;flex-direction:column;gap:10px;padding-top:10px;border-top:1px solid var(--line)}.playback button{background:transparent;border:1px solid var(--line);color:var(--text);padding:8px 12px}.playback button.playing{background:var(--accent);border-color:var(--accent)}.playback button:hover:not(:disabled){border-color:var(--accent)}#stage{position:relative;display:flex;align-items:center;justify-content:center;padding:24px;background:repeating-conic-gradient(#1a1a1f 0,#1a1a1f 25%,#141417 0,#141417 50%) 0 0/24px 24px;overflow:hidden}#canvas{max-width:100%;max-height:100%;display:block;box-shadow:0 8px 30px #0006}#placeholder{position:absolute;color:var(--muted);pointer-events:none}#canvas.has-image+#placeholder{display:none}