* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #06090f;
  --panel: #0d1220;
  --panel-2: #121729;
  --border: #202741;
  --text: #e7ebf5;
  --muted: #8891ab;
  --accent: #3b82f6;
  --accent-2: #8b5cf6;
  --free: #22c55e;
  --busy: #ef4444;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  min-height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 0.2px;
}

.status-pill {
  font-size: 13px;
  color: var(--muted);
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 999px;
}

.status-pill.ready { color: var(--free); border-color: var(--free); }
.status-pill.error { color: var(--busy); border-color: var(--busy); }

.layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 20px;
  padding: 20px 24px 32px;
  align-items: start;
}

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
}

.video-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
}

.video-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.source-select {
  display: flex;
  gap: 16px;
  font-size: 14px;
  color: var(--muted);
}

.source-select label { display: flex; align-items: center; gap: 6px; cursor: pointer; }

.ipcam-url {
  display: flex;
  gap: 8px;
  flex: 1 1 260px;
}

.ipcam-url input {
  flex: 1;
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 13px;
}

button {
  font-family: inherit;
  font-size: 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  padding: 8px 14px;
  cursor: pointer;
}

button:hover:not(:disabled) { border-color: var(--accent); }
button:disabled { opacity: 0.5; cursor: not-allowed; }

button.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border: none;
  font-weight: 600;
  margin-left: auto;
}

button.ghost {
  background: transparent;
  color: var(--muted);
}

.stage {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.stage video,
.stage img,
.stage canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.stage canvas.drawing {
  cursor: crosshair;
}

#addZone.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border: none;
  color: #fff;
}

.stage-empty {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
  padding: 20px;
  pointer-events: none;
}

.stage-empty[hidden] {
  display: none;
}

.zone-tools {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.hint {
  font-size: 12px;
  color: var(--muted);
}

.sidebar {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
}

.sidebar h2 {
  font-size: 16px;
  margin-bottom: 12px;
}

.sidebar h2 span {
  color: var(--muted);
  font-weight: 400;
}

.summary {
  display: flex;
  gap: 10px;
  margin-bottom: 14px;
}

.summary-chip {
  flex: 1;
  border-radius: 10px;
  padding: 8px 10px;
  font-size: 12px;
  border: 1px solid var(--border);
  color: var(--muted);
}

.summary-chip strong {
  display: block;
  font-size: 18px;
  color: var(--text);
}

.summary-chip.free strong { color: var(--free); }
.summary-chip.busy strong { color: var(--busy); }

.table-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 420px;
  overflow-y: auto;
}

.table-row {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 10px;
}

.table-row .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--free);
  flex-shrink: 0;
}

.table-row.busy .dot { background: var(--busy); }

.table-row .name {
  flex: 1;
  font-size: 13px;
  background: transparent;
  border: none;
  color: var(--text);
  min-width: 0;
}

.table-row .name:focus { outline: 1px solid var(--accent); border-radius: 4px; }

.table-row .state {
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
}

.table-row .remove {
  border: none;
  background: transparent;
  color: var(--muted);
  padding: 2px 6px;
  font-size: 14px;
}

.table-row .remove:hover { color: var(--busy); border-color: transparent; }

.footnote {
  margin-top: 16px;
  font-size: 11.5px;
  line-height: 1.5;
  color: var(--muted);
}

.empty-list {
  font-size: 13px;
  color: var(--muted);
  padding: 10px 0;
}