:root{
  --bg:#000; --panel:#0d0f12; --muted:#13161c; --text:#f2f4f8; --sub:#aab2c0;
  --accent:#ff0050; --hi:#00f2ea; --ok:#3ddc97; --bad:#ff4d4f; --warn:#ffcc00;
  --r:14px; --shadow:0 6px 24px rgba(0,0,0,.35), 0 2px 8px rgba(0,0,0,.4);
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--text);font:14px/1.45 system-ui,Segoe UI,Roboto,Ubuntu,Arial,sans-serif}
a{color:var(--hi)}
.app{display:grid;grid-template-columns:360px 1fr;gap:16px;padding:16px;min-height:100vh}
.sidebar{background:var(--panel);border:1px solid #12151b;border-radius:var(--r);box-shadow:var(--shadow);overflow:hidden}
.tabs{display:flex}
.tab{flex:1;padding:12px;cursor:pointer;text-align:center;background:#0f1116;color:var(--sub);border:0;border-bottom:2px solid transparent}
.tab.active{color:#fff;border-bottom-color:var(--accent);background:#121620}
.pane{display:none;padding:12px}
.pane.active{display:block}
.group{background:var(--muted);border:1px solid #1a1f27;border-radius:12px;padding:12px;margin:12px 0}
.group h3{margin:0 0 8px 0;font-size:13px;letter-spacing:.2px}
label{display:block;margin:6px 0 4px;color:var(--sub);font-size:12px}
.help{margin:6px 0 0 18px;padding:0}
.help li{margin:3px 0}
input[type=text],input[type=number],textarea,select{
  width:100%;padding:10px;border-radius:10px;background:#0e1218;color:#e8ecf3;border:1px solid #1d2330
}
input[readonly]{opacity:.8;background:#0b1017}
textarea{min-height:140px;font-family:ui-monospace,Consolas,Menlo,monospace}
input[type=file]{width:100%}
.row{display:flex;gap:10px;flex-wrap:wrap}
.row>*{flex:1}
.stack{display:flex;flex-direction:column;gap:10px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border:1px solid #1c2230;border-radius:10px;background:#121722;color:#fff;cursor:pointer}
.btn:hover{background:#162035;border-color:#2a344a}
.btn.primary{background:linear-gradient(135deg,var(--accent),#b40070);border-color:#b40070}
.btn.ghost{background:#0e1218}
.btn.hidden{display:none}
.stage{background:#0a0d12;border:1px solid #10151f;border-radius:var(--r);padding:10px;display:grid;grid-template-columns:1fr 320px;gap:10px;min-height:420px}
.canvasWrap{border:1px dashed #233046;border-radius:12px;display:flex;align-items:center;justify-content:center;background:#0b0f16;overflow:hidden;min-height:360px}
canvas{image-rendering:pixelated;background:transparent;max-width:100%}
.assetGrid{border:1px solid #1b2231;background:#0c1118;border-radius:12px;padding:8px;overflow:auto}
.asset{display:flex;gap:10px;align-items:center;border:1px solid #1b2231;background:#0f141d;border-radius:10px;padding:8px;margin:6px 0}
.asset img{width:48px;height:48px;object-fit:contain;background:#0b0f16;border:1px solid #1a2130;border-radius:8px}
.status{margin-left:auto;color:var(--sub)}
.badge{padding:2px 8px;border-radius:999px;font-size:11px;margin-left:6px}
.badge.ok{background:rgba(61,220,151,.15);color:var(--ok)}
.badge.warn{background:rgba(255,204,0,.15);color:var(--warn)}
.badge.bad{background:rgba(255,77,79,.15);color:var(--bad)}
.footer-links{display:flex;gap:12px;justify-content:center;margin-top:12px}
.footer-links a{display:inline-block;padding:10px 16px;border-radius:999px;text-decoration:none;color:#fff;background:#ff0050;font-weight:600;box-shadow:0 6px 16px rgba(0,0,0,.45)}
.footer-links a:hover{background:#00f2ea;color:#000}
.note{color:#9fb0c8;font-size:12px}
.layerRow{display:grid;grid-template-columns:64px 1fr 120px 32px;gap:10px;align-items:center;background:#0f141d;border:1px solid #1b2231;border-radius:10px;padding:6px}
.layerRow img{width:64px;height:64px;object-fit:contain;background:#0b0f16;border:1px solid #1a2130;border-radius:8px}
.layerRow .del{background:#28111a;border:1px solid #412;cursor:pointer;border-radius:8px;color:#fff}
.toolbar{display:flex;gap:10px;align-items:center;margin-top:10px}