/* ── Design tokens ────────────────────────────────────────────────────────── */
:root {
  --bg-1: #0a0e1a;
  --bg-2: #111827;
  --glass-bg: rgba(255, 255, 255, 0.06);
  --glass-bg-hover: rgba(255, 255, 255, 0.10);
  --glass-border: rgba(255, 255, 255, 0.10);
  --glass-border-strong: rgba(255, 255, 255, 0.18);
  --accent: #63b3ed;
  --accent-hover: #4299e1;
  --accent-dim: rgba(99, 179, 237, 0.15);
  --danger: #fc8181;
  --success: #68d391;
  --warning: #f6ad55;
  --text: rgba(255, 255, 255, 0.92);
  --text-muted: rgba(255, 255, 255, 0.45);
  --text-sub: rgba(255, 255, 255, 0.65);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.5);
}

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

html { height: 100%; }

body {
  min-height: 100%;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 14px;
  color: var(--text);
  background: var(--bg-1);
  background-image:
    radial-gradient(ellipse 80% 60% at 20% 10%, rgba(99, 179, 237, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 80%, rgba(139, 92, 246, 0.07) 0%, transparent 55%),
    radial-gradient(ellipse 50% 40% at 50% 50%, rgba(16, 24, 48, 0.9) 0%, transparent 100%);
  -webkit-font-smoothing: antialiased;
}

/* ── Glass card ───────────────────────────────────────────────────────────── */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* ── Scrollbar ────────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.12); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

/* ── Dashboard layout ─────────────────────────────────────────────────────── */
.app-layout {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ── Top navbar ───────────────────────────────────────────────────────────── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  height: 60px;
  background: rgba(10, 14, 26, 0.75);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border-bottom: 1px solid var(--glass-border);
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.3px;
  text-decoration: none;
  color: var(--text);
}
.navbar-brand svg { width: 26px; height: 26px; color: var(--accent); }
.navbar-brand span { color: var(--accent); }

.navbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.user-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px 6px 6px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--text-sub);
}
.user-avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
}

.btn-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
  color: var(--text-muted);
  cursor: pointer;
  text-decoration: none;
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}
.btn-icon:hover {
  color: var(--danger);
  background: rgba(252, 129, 129, 0.08);
  border-color: rgba(252, 129, 129, 0.25);
}
.btn-icon svg { width: 16px; height: 16px; }

/* ── Main content ─────────────────────────────────────────────────────────── */
.main-content {
  flex: 1;
  padding: 28px 24px;
  max-width: 1600px;
  width: 100%;
  margin: 0 auto;
}

/* ── Stats bar ────────────────────────────────────────────────────────────── */
.stats-bar {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.stat-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--text-sub);
}
.stat-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
}
.stat-dot.online { background: var(--success); box-shadow: 0 0 6px var(--success); }
.stat-dot.offline { background: var(--danger); }
.stat-dot.total { background: var(--accent); }

/* ── Section header ───────────────────────────────────────────────────────── */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.section-title {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
}
.section-title small {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 400;
  margin-left: 8px;
}

/* ── Camera grid ──────────────────────────────────────────────────────────── */
.camera-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 20px;
}

/* ── Camera card ──────────────────────────────────────────────────────────── */
.camera-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: box-shadow 0.25s, border-color 0.25s, transform 0.2s;
}
.camera-card:hover {
  border-color: var(--glass-border-strong);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.camera-video-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  background: rgba(0, 0, 0, 0.5);
  overflow: hidden;
}

.camera-video-wrap video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.camera-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--text-muted);
  font-size: 0.8rem;
}
.camera-placeholder svg {
  width: 36px;
  height: 36px;
  opacity: 0.4;
}

.stream-status-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 500;
  backdrop-filter: blur(8px);
  border: 1px solid transparent;
}
.stream-status-badge.live {
  background: rgba(104, 211, 145, 0.15);
  border-color: rgba(104, 211, 145, 0.3);
  color: var(--success);
}
.stream-status-badge.live::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  animation: pulse 1.5s infinite;
}
.stream-status-badge.connecting {
  background: rgba(246, 173, 85, 0.15);
  border-color: rgba(246, 173, 85, 0.3);
  color: var(--warning);
}
.stream-status-badge.error {
  background: rgba(252, 129, 129, 0.15);
  border-color: rgba(252, 129, 129, 0.3);
  color: var(--danger);
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.camera-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-top: 1px solid var(--glass-border);
}
.camera-name {
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--text);
}
.camera-location {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 2px;
}
.camera-actions {
  display: flex;
  gap: 8px;
}
.cam-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
}
.cam-btn:hover {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}
.cam-btn svg { width: 14px; height: 14px; }

/* ── Empty state ──────────────────────────────────────────────────────────── */
.empty-state {
  grid-column: 1/-1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  color: var(--text-muted);
  gap: 12px;
  text-align: center;
}
.empty-state svg { width: 56px; height: 56px; opacity: 0.3; }
.empty-state h3 { font-size: 1rem; font-weight: 500; color: var(--text-sub); }
.empty-state p { font-size: 0.8rem; }

/* ── Loading spinner ──────────────────────────────────────────────────────── */
.spinner {
  width: 36px;
  height: 36px;
  border: 2px solid var(--glass-border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Toast ────────────────────────────────────────────────────────────────── */
#toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}
.toast-item {
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  animation: slideIn 0.3s ease;
  pointer-events: auto;
}
.toast-item.error { border-color: rgba(252,129,129,0.35); color: var(--danger); }
.toast-item.success { border-color: rgba(104,211,145,0.35); color: var(--success); }
@keyframes slideIn { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: translateX(0); } }

/* ── Navbar nav links ────────────────────────────────────────────────────── */
.navbar-center {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s, background 0.2s;
}
.nav-link:hover { color: var(--text); background: var(--glass-bg); }
.nav-link.active { color: var(--accent); background: var(--accent-dim); }

/* ── Video offline overlay ───────────────────────────────────────────────── */
.video-offline {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: rgba(10, 14, 26, 0.72);
  backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
  z-index: 5;
}
.video-offline.visible { opacity: 1; }

.offline-spinner {
  width: 28px;
  height: 28px;
  border: 2px solid rgba(255,255,255,0.15);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
.offline-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ── Overlay editor layout ───────────────────────────────────────────────── */
.overlay-editor-layout {
  display: grid;
  grid-template-columns: 240px 1fr 280px;
  gap: 20px;
  align-items: start;
}

.overlay-panel {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.panel-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-sub);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ── Scope selector ──────────────────────────────────────────────────────── */
.scope-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: block;
  margin-bottom: 4px;
}
.glass-select {
  width: 100%;
  padding: 8px 10px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.8rem;
  font-family: inherit;
  cursor: pointer;
  appearance: none;
}
.glass-select:focus { outline: none; border-color: var(--accent); }

/* ── Element list ────────────────────────────────────────────────────────── */
.element-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.element-item {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  color: var(--text-sub);
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 0.15s, border-color 0.15s;
}
.element-item:hover { background: var(--glass-bg); }
.element-item.selected {
  background: var(--accent-dim);
  border-color: rgba(99, 179, 237, 0.3);
  color: var(--accent);
}

/* ── Template list ───────────────────────────────────────────────────────── */
.template-item {
  display: flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  color: var(--text-sub);
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 0.15s, border-color 0.15s;
}
.template-item:hover { background: var(--glass-bg); }
.template-item.selected {
  background: var(--accent-dim);
  border-color: rgba(99, 179, 237, 0.3);
  color: var(--accent);
}
.template-item-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.template-item-delete {
  flex-shrink: 0;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  padding: 0 2px;
  transition: color 0.15s;
}
.template-item-delete:hover { color: var(--danger); }

/* ── Camera assignment ───────────────────────────────────────────────────── */
.camera-assign-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  border-bottom: 1px solid var(--glass-border);
}
.camera-assign-row:last-child { border-bottom: none; }
.camera-assign-label {
  font-size: 0.8rem;
  color: var(--text-sub);
  min-width: 80px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.camera-assign-select {
  flex: 1;
  min-width: 0;
  font-size: 0.78rem;
  padding: 4px 8px;
}
.assign-empty {
  font-size: 0.78rem;
  color: var(--text-muted);
  padding: 6px 0;
}

/* ── Preview canvas ──────────────────────────────────────────────────────── */
.overlay-preview-wrap {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.preview-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}
.preview-canvas-container {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.preview-canvas-container canvas {
  width: 100%;
  height: auto;
  display: block;
}

/* ── Element form ────────────────────────────────────────────────────────── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}
.glass-input {
  padding: 7px 10px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.8rem;
  font-family: inherit;
  width: 100%;
}
.glass-input:focus { outline: none; border-color: var(--accent); }
.glass-range {
  width: 100%;
  accent-color: var(--accent);
  cursor: pointer;
}
.glass-color {
  width: 100%;
  height: 32px;
  padding: 2px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

/* ── 3×3 position grid ───────────────────────────────────────────────────── */
.pos-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
}
.pos-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 32px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  color: var(--text-muted);
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.15s;
}
.pos-btn:hover { background: var(--accent-dim); border-color: var(--accent); color: var(--accent); }
.pos-btn.active { background: var(--accent-dim); border-color: var(--accent); color: var(--accent); }

/* ── Small buttons ───────────────────────────────────────────────────────── */
.btn-sm {
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  color: var(--text-sub);
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.15s;
}
.btn-sm:hover { background: var(--accent-dim); border-color: var(--accent); color: var(--accent); }
.btn-sm.danger:hover { background: rgba(252,129,129,0.1); border-color: rgba(252,129,129,0.3); color: var(--danger); }

.btn-primary {
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(99, 179, 237, 0.4);
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.2s;
}
.btn-primary:hover { background: rgba(99, 179, 237, 0.25); }

/* ── Stream status footer ────────────────────────────────────────────────── */
.overlay-footer {
  margin: 20px 24px;
  padding: 18px 24px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}
.footer-left { flex: 1; }
.footer-right { display: flex; align-items: flex-end; }

.status-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.78rem;
}
.status-table th {
  text-align: left;
  padding: 6px 10px;
  color: var(--text-muted);
  font-weight: 500;
  border-bottom: 1px solid var(--glass-border);
}
.status-table td {
  padding: 8px 10px;
  color: var(--text-sub);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.status-chip {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 500;
}
.status-chip.status-live { background: rgba(104,211,145,0.15); color: var(--success); border: 1px solid rgba(104,211,145,0.3); }
.status-chip.status-connecting { background: rgba(246,173,85,0.15); color: var(--warning); border: 1px solid rgba(246,173,85,0.3); }
.status-chip.status-offline { background: rgba(252,129,129,0.12); color: var(--danger); border: 1px solid rgba(252,129,129,0.25); }

/* ── Responsive ───────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .overlay-editor-layout {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 640px) {
  .navbar { padding: 0 16px; }
  .navbar-center { display: none; }
  .main-content { padding: 20px 16px; }
  .camera-grid { grid-template-columns: 1fr; }
}