:root{--bg: #0d0d12;--panel: #16161f;--panel-2: #1d1d29;--line: #2a2a3a;--text: #e8e8f0;--muted: #9a9ab0;--accent: #ff2d95;--accent-2: #21d4fd}*{box-sizing:border-box}html,body{margin:0;height:100%;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}#app{display:grid;grid-template-columns:340px 1fr;height:100vh}#sidebar{background:var(--panel);border-right:1px solid var(--line);overflow-y:auto;padding:18px}#sidebar h1{margin:0;font-size:22px;letter-spacing:.5px}#sidebar h1 span{color:var(--accent)}.subtitle{color:var(--muted);font-size:13px;margin:4px 0 16px}.panel{background:var(--panel-2);border:1px solid var(--line);border-radius:10px;padding:12px;margin-bottom:12px}.panel h2{font-size:12px;text-transform:uppercase;letter-spacing:1px;color:var(--muted);margin:0 0 10px}.field{margin-bottom:10px}.field label{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}.field.inline{display:flex;gap:10px}.field.inline>div{flex:1}input[type=number],input[type=text]{width:100%;background:var(--bg);border:1px solid var(--line);color:var(--text);border-radius:6px;padding:7px 8px;font-size:14px}input[type=number]:focus,input[type=text]:focus{outline:1px solid var(--accent)}.hint{font-size:12px;color:var(--accent-2);margin:6px 0 0}.check{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--text);cursor:pointer;margin-top:6px}button{width:100%;border:none;border-radius:8px;padding:10px;font-size:14px;font-weight:600;cursor:pointer}button.primary{background:var(--accent);color:#fff}button.primary:hover{filter:brightness(1.1)}button.ghost{background:transparent;border:1px solid var(--line);color:var(--muted);margin-top:8px}.file-drop{display:flex;align-items:center;justify-content:center;height:90px;border:2px dashed var(--line);border-radius:10px;color:var(--muted);font-size:13px;cursor:pointer;text-align:center;padding:8px}.file-drop.drag{border-color:var(--accent);color:var(--text)}#viewport{position:relative}#three{display:block;width:100%;height:100%}#toolbar{position:absolute;top:12px;left:12px;display:flex;gap:14px;align-items:center;background:#0d0d12b3;backdrop-filter:blur(6px);border:1px solid var(--line);border-radius:8px;padding:8px 12px;z-index:5}#toolbar input[type=color]{width:28px;height:28px;border:none;background:none;cursor:pointer}#status{position:absolute;bottom:12px;left:12px;background:#0d0d12b3;border:1px solid var(--line);border-radius:8px;padding:8px 12px;font-size:12px;color:var(--muted);z-index:5}#pieceList,#designList{list-style:none;padding:0;margin:10px 0}#pieceList li,#designList li{display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:13px;padding:7px 8px;border:1px solid var(--line);border-radius:6px;margin-bottom:6px}#pieceList .swatch{width:12px;height:12px;border-radius:3px;display:inline-block;margin-right:6px}#pieceList button,#designList button{width:auto;padding:4px 8px;font-size:12px;background:var(--panel);color:var(--text)}#designList .name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}#designList .actions{display:flex;gap:4px}#designList .del{color:var(--accent)}