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

:root {
  --bg:       #0f0f0f;
  --surface:  #1a1a1a;
  --border:   #2e2e2e;
  --ok:       #4caf50;
  --warn:     #ff9800;
  --err:      #f44336;
  --info:     #2196f3;
  --muted:    #666;
  --text:     #e0e0e0;
  --subtext:  #999;
  --radius:   8px;
}

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

header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
}

header h1 {
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text);
}

/* ── Tabs ──────────────────────────────────────────────────────────────────── */
.tabs {
  display: flex;
  gap: 4px;
  padding: 12px 24px 0;
  border-bottom: 1px solid var(--border);
}

.tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--subtext);
  cursor: pointer;
  font-size: 0.9rem;
  padding: 8px 16px;
  transition: color 0.15s, border-color 0.15s;
}

.tab:hover { color: var(--text); }
.tab.active { color: var(--text); border-bottom-color: var(--info); }

/* ── Camera panel ──────────────────────────────────────────────────────────── */
.cam-panel { display: none; padding: 24px; }
.cam-panel.active { display: block; }

.panel-body {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 24px;
  align-items: start;
}

@media (max-width: 800px) {
  .panel-body { grid-template-columns: 1fr; }
}

/* ── Stream / image ─────────────────────────────────────────────────────────── */
.col-stream {
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  aspect-ratio: 16/9;
  display: flex;
  align-items: center;
  justify-content: center;
}

.stream {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.stream-offline {
  width: 100%;
  height: 100%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 160px;
}

.offline-label {
  position: absolute;
  bottom: 12px;
  left: 0;
  right: 0;
  text-align: center;
  color: var(--err);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.04em;
}

/* ── Status table ──────────────────────────────────────────────────────────── */
.col-status {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.status-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.status-table td {
  padding: 6px 4px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.status-table td:first-child {
  color: var(--subtext);
  width: 45%;
}

.status-table tr:last-child td { border-bottom: none; }

/* ── Badges ─────────────────────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  font-size: 0.8rem;
  padding: 2px 8px;
  border-radius: 100px;
  font-weight: 500;
}

.badge-ok   { background: rgba(76,175,80,0.15); color: var(--ok); }
.badge-err  { background: rgba(244,67,54,0.15); color: var(--err); }
.badge-warn { background: rgba(255,152,0,0.15); color: var(--warn); }
.badge-info { background: rgba(33,150,243,0.15); color: var(--info); }
.badge-muted { background: rgba(255,255,255,0.06); color: var(--subtext); }

.error-text { color: var(--err); font-size: 0.8rem; }
.error-text-sm { color: var(--err); font-size: 0.7rem; opacity: 0.8; }
.status-cell { display: flex; justify-content: space-between; align-items: center; gap: 4px; flex-wrap: wrap; }
.status-detail summary { cursor: pointer; color: var(--subtext); font-size: 0.75rem; opacity: 0.7; list-style: none; user-select: none; white-space: nowrap; }
.status-detail summary:hover { opacity: 1; }
.status-detail summary::-webkit-details-marker { display: none; }
.status-detail[open] { width: 100%; font-size: 0.75rem; color: var(--subtext); padding-top: 2px; }
.status-detail.detail-err summary { color: var(--err); opacity: 0.85; }
.status-detail.detail-err[open] { color: var(--err); }

/* ── Actions strip ───────────────────────────────────────────────────────────── */
.panel-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.btn {
  cursor: pointer;
  border: none;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 8px 18px;
  transition: opacity 0.15s;
}

.btn:hover { opacity: 0.85; }
.btn:active { opacity: 0.7; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-ok     { background: var(--ok);   color: #fff; }
.btn-danger { background: var(--err);  color: #fff; }
.btn-warn   { background: var(--warn); color: #000; }
.btn-info   { background: var(--info); color: #fff; }
.btn-muted  { background: var(--surface); color: var(--text); border: 1px solid var(--border); }

/* ── HDR toggle ──────────────────────────────────────────────────────────────── */
.hdr-toggle {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.toggle-track {
  width: 28px;
  height: 16px;
  border-radius: 8px;
  background: var(--muted);
  position: relative;
  flex-shrink: 0;
  transition: background 0.2s;
}
.hdr-toggle.hdr-on .toggle-track { background: var(--info); }
.toggle-knob {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #fff;
  transition: left 0.2s;
}
.hdr-toggle.hdr-on .toggle-knob { left: 14px; }

/* ── Button loading spinner ──────────────────────────────────────────────────── */
.btn-spinner {
  display: inline-block;
  width: 12px;
  height: 12px;
  border: 2px solid rgba(255,255,255,0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  vertical-align: middle;
  margin-right: 2px;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

@keyframes spin { to { transform: rotate(360deg); } }