:root {
  --bg: #0d1117;
  --panel: #161b22;
  --border: #21262d;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #4da3ff;
}

* { box-sizing: border-box; }

html, body, #app {
  height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 13px/1.45 ui-sans-serif, system-ui, sans-serif;
}

.studio { display: flex; flex-direction: column; height: 100vh; }

.topbar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 8px 14px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
.brand {
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--accent);
}
.doc-name { font-weight: 600; }
.hint { margin-left: auto; color: var(--muted); font-size: 11px; }

.bps { display: flex; gap: 4px; }
.bp {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 6px;
  padding: 3px 10px;
  cursor: pointer;
}
.bp.active { border-color: var(--accent); color: var(--accent); }

.main { display: flex; flex: 1; min-height: 0; }

.layers, .inspector {
  width: 240px;
  background: var(--panel);
  border-right: 1px solid var(--border);
  padding: 10px;
  overflow: auto;
}
.inspector { border-right: 0; border-left: 1px solid var(--border); }

.layers h3, .inspector h3 {
  margin: 0 0 8px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.tree { list-style: none; margin: 0; padding: 0; }
.node {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border-radius: 6px;
  cursor: pointer;
}
.node:hover { background: #1c2129; }
.node.sel { background: #12233a; outline: 1px solid var(--accent); }
.node .mode { color: var(--muted); }
.node .kind {
  font-size: 10px;
  color: var(--accent);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0 4px;
}
.node .name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.canvas-wrap { flex: 1; overflow: auto; display: flex; }
.canvas {
  flex: 1;
  background-color: #0b0f16;
  background-image: radial-gradient(#1a2330 1px, transparent 1px);
  background-size: 24px 24px;
}
.canvas-root { width: 100%; }

.inspector .panel {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px;
  margin-bottom: 10px;
}
.inspector h4 { margin: 0 0 6px; font-size: 12px; }
.row { display: flex; justify-content: space-between; gap: 8px; }
.row .k { color: var(--muted); }
.muted { color: var(--muted); font-size: 11px; }
.empty { color: var(--muted); }

textarea, input[type="number"] {
  width: 100%;
  background: #0d1117;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 6px;
  margin-top: 4px;
}
label { display: block; color: var(--muted); }

/* --- Dashboard --- */
.dashboard { max-width: 860px; margin: 0 auto; padding: 32px 20px; }
.dash-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 28px; }
.dash-head h1 { font-size: 22px; margin: 0; }
.dash-create, .dash-list { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 16px; margin-bottom: 20px; }
.dash-create h3, .dash-list h3 { margin: 0 0 10px; font-size: 11px; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }
.create-row { display: flex; gap: 10px; }
.create-row input[type="text"] { flex: 1; background: #0d1117; border: 1px solid var(--border); color: var(--text); border-radius: 8px; padding: 9px 12px; font: inherit; }
button.primary { background: var(--accent); border: none; color: #08131f; font-weight: 600; border-radius: 8px; padding: 9px 16px; cursor: pointer; }
button.primary:disabled { opacity: .45; cursor: default; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; }
.card { display: flex; flex-direction: column; gap: 4px; background: #10151c; border: 1px solid var(--border); border-radius: 8px; padding: 12px; text-decoration: none; color: var(--text); }
.card:hover { border-color: var(--accent); }
.card-name { font-weight: 600; }
.card-id { font-size: 11px; }
.hint-demo { text-align: center; }
.error { color: #ff7b72; }

/* --- Editor additions --- */
.left { width: 264px; display: flex; flex-direction: column; background: var(--panel); border-right: 1px solid var(--border); overflow: auto; }
.palette { padding: 10px; border-bottom: 1px solid var(--border); }
.palette h3, .layers h3 { margin: 0 0 8px; font-size: 11px; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }
.palette-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.pal { display: flex; flex-direction: column; align-items: center; gap: 2px; background: #10151c; border: 1px solid var(--border); color: var(--text); border-radius: 8px; padding: 8px 4px; cursor: pointer; font: inherit; font-size: 11px; }
.pal:hover { border-color: var(--accent); color: var(--accent); }
.pal span { color: var(--muted); font-size: 10px; }
.layers { padding: 10px; flex: 1; overflow: auto; }
.node .node-actions { margin-left: auto; display: none; gap: 4px; }
.node:hover .node-actions, .node.sel .node-actions { display: inline-flex; }
button.mini { background: transparent; border: none; color: var(--muted); cursor: pointer; padding: 0 3px; font-size: 12px; }
button.mini:hover { color: var(--accent); }
button.mini.danger:hover { color: #ff7b72; }
.rename { width: 110px; background: #0d1117; border: 1px solid var(--accent); color: var(--text); border-radius: 4px; font: inherit; font-size: 12px; padding: 1px 4px; }
.net { font-size: 11px; padding: 2px 8px; border-radius: 999px; border: 1px solid var(--border); color: var(--muted); }
.net.online { color: #3fb950; border-color: #3fb95044; }
.net.offline { color: #d29922; border-color: #d2992244; }
.topbar-actions { display: flex; gap: 4px; }
button.tool { background: transparent; border: 1px solid var(--border); color: var(--text); border-radius: 6px; width: 28px; height: 26px; cursor: pointer; }
button.tool:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
button.tool:disabled { opacity: .35; cursor: default; }
.mono { font-family: ui-monospace, monospace; font-size: 11px; }
.muted.ok { color: #3fb950; }
.editor-load { padding: 48px; text-align: center; color: var(--muted); }