:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --panel-2: #334155;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #22c55e;
  --accent-2: #38bdf8;
  --danger: #ef4444;
  --warning: #f59e0b;
  --border: #475569;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  height: 100%;
}

a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

header.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
header.app-header h1 { font-size: 18px; margin: 0; }
header.app-header nav a {
  margin-left: 16px;
  color: var(--muted);
  font-size: 14px;
}
header.app-header nav a.active { color: var(--text); font-weight: 600; }

main { padding: 16px 20px; }

button {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 12px;
  cursor: pointer;
  font-size: 14px;
}
button:hover { background: #475569; }
button.primary { background: var(--accent); border-color: var(--accent); color: #052e1a; font-weight: 600; }
button.primary:hover { filter: brightness(1.1); }
button.danger { background: var(--danger); border-color: var(--danger); color: white; }
button.warn { background: var(--warning); border-color: var(--warning); color: #2a1a00; }
button[disabled] { opacity: 0.5; cursor: not-allowed; }

input[type=text], input[type=number], input[type=color], textarea, select {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 14px;
  font-family: inherit;
}
input[type=color] { padding: 2px; height: 32px; }
textarea { width: 100%; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
th, td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: middle;
}
th { color: var(--muted); font-weight: 600; }

.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}
.tabs button {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  padding: 10px 14px;
  color: var(--muted);
}
.tabs button.active {
  color: var(--text);
  border-bottom-color: var(--accent);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 16px;
}

.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.row > * { flex-shrink: 0; }

.muted { color: var(--muted); }
.spacer { flex: 1; }

/* Live page */
.live-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 16px;
  align-items: flex-start;
}
@media (max-width: 900px) {
  .live-wrap { grid-template-columns: 1fr; }
}

.video-wrap {
  position: relative;
  background: #000;
  border-radius: 8px;
  overflow: hidden;
}
.video-wrap video {
  display: block;
  width: 100%;
  height: auto;
}
.video-wrap canvas.overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.zone-counts {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.zone-counts .item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel-2);
}
.zone-counts .item .label { font-weight: 600; }
.zone-counts .item .name { font-size: 12px; color: var(--muted); }
.zone-counts .item .count {
  font-size: 28px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.status-pill {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 12px;
  background: #475569;
}
.status-pill.ok { background: var(--accent); color: #052e1a; }
.status-pill.err { background: var(--danger); color: white; }

/* admin marker grid */
.markers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
}
.marker-card {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px;
  text-align: center;
}
.marker-card img {
  width: 100%;
  background: white;
  border-radius: 4px;
}
.marker-card .id { font-weight: 600; margin-top: 4px; }
.marker-card .person { font-size: 12px; color: var(--muted); }
.marker-card .actions { margin-top: 6px; display: flex; gap: 4px; justify-content: center; }

/* zones drawing */
.zone-canvas-wrap {
  position: relative;
  background: #000;
  border-radius: 8px;
  overflow: hidden;
}
.zone-canvas-wrap video, .zone-canvas-wrap img {
  display: block;
  width: 100%;
  height: auto;
}
.zone-canvas-wrap canvas {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
}
.zone-canvas-wrap .draw {
  cursor: crosshair;
}

dialog::backdrop { background: rgba(0,0,0,0.6); }
dialog {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  min-width: 400px;
}