/* Modern Dark Security & AI Cloud Theme */
:root {
  --bg-primary: #0a0f1d;
  --bg-secondary: #111827;
  --bg-card: #1e293b;
  --bg-card-hover: #334155;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --accent-blue: #3b82f6;
  --accent-cyan: #06b6d4;
  --accent-green: #10b981;
  --accent-yellow: #f59e0b;
  --accent-red: #ef4444;
  --border-color: rgba(255, 255, 255, 0.08);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --touch-target: 44px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  padding-bottom: 60px;
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  background: rgba(17, 24, 39, 0.9);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--border-color);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.brand h1 {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.2;
}

.badge-live {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent-green);
  letter-spacing: 0.5px;
}

.header-actions {
  display: flex;
  gap: 8px;
}

.btn-icon {
  width: var(--touch-target);
  height: var(--touch-target);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-icon:hover {
  background: var(--bg-card-hover);
  color: var(--text-main);
}

/* Sticky Mobile Quick-Summary KPI Bar */
.kpi-bar {
  display: flex;
  align-items: center;
  justify-content: space-around;
  background: rgba(30, 41, 59, 0.95);
  backdrop-filter: blur(10px);
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 73px;
  z-index: 40;
}

.kpi-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.kpi-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.kpi-val {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-main);
}

.kpi-val.highlight {
  color: var(--accent-cyan);
}

/* Main Content Layout */
.main-content {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Section Cards */
.section-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: 1.25rem;
  font-weight: 700;
}

.subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Camera Tab Selector */
.cam-selector-group {
  display: flex;
  background: var(--bg-card);
  padding: 4px;
  border-radius: var(--radius-sm);
  gap: 4px;
}

.cam-tab {
  padding: 8px 16px;
  border-radius: 6px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  min-height: 38px;
  transition: all 0.2s ease;
}

.cam-tab.active {
  background: var(--accent-blue);
  color: white;
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.4);
}

.stream-quality-tag {
  font-size: 0.75rem;
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-green);
  padding: 4px 10px;
  border-radius: 20px;
  font-weight: 600;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

/* Video Player Canvas */
.player-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.8);
}

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

.player-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
}

.overlay-top-status {
  position: absolute;
  top: 14px;
  left: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.78rem;
}

.rec-dot {
  color: var(--accent-red);
  font-weight: 700;
  animation: pulse 1.5s infinite;
}

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

.overlay-bottom-controls {
  position: absolute;
  bottom: 14px;
  left: 14px;
  right: 14px;
  display: flex;
  gap: 8px;
  pointer-events: auto;
  flex-wrap: wrap;
}

.control-btn {
  background: rgba(17, 24, 39, 0.8);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-main);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  min-height: 38px;
  transition: all 0.2s ease;
}

.control-btn:hover {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
}

/* Simulated AI Bounding Boxes */
.ai-box {
  position: absolute;
  border: 2px solid;
  border-radius: 6px;
  pointer-events: none;
  transition: all 0.5s ease;
}

.vehicle-box {
  top: 25%;
  left: 18%;
  width: 32%;
  height: 48%;
  border-color: var(--accent-cyan);
  background: rgba(6, 182, 212, 0.12);
}

.face-box {
  top: 22%;
  right: 20%;
  width: 18%;
  height: 28%;
  border-color: var(--accent-green);
  background: rgba(16, 185, 129, 0.12);
}

.ai-label {
  position: absolute;
  top: -24px;
  left: 0;
  background: inherit;
  color: white;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  white-space: nowrap;
}

.vehicle-box .ai-label { background: var(--accent-cyan); color: #000; }
.face-box .ai-label { background: var(--accent-green); color: #000; }

/* PTZ Panel */
.ptz-panel {
  margin-top: 18px;
  padding: 16px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.ptz-info h4 {
  font-size: 0.95rem;
  font-weight: 700;
}

.ptz-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.ptz-controls-cluster {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.ptz-grid {
  display: grid;
  grid-template-columns: repeat(3, 44px);
  gap: 6px;
}

.ptz-btn {
  width: var(--touch-target);
  height: var(--touch-target);
  border-radius: 8px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  touch-action: manipulation;
  transition: all 0.15s ease;
}

.ptz-btn:active {
  background: var(--accent-blue);
  transform: scale(0.92);
}

.ptz-center {
  background: var(--bg-card-hover);
  color: var(--accent-cyan);
}

.preset-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.preset-btn {
  padding: 8px 12px;
  border-radius: 6px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  min-height: 36px;
  text-align: left;
  transition: all 0.2s ease;
}

.preset-btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-blue);
}

/* AI Events Feed */
.filter-pills {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.pill {
  padding: 6px 12px;
  border-radius: 20px;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  min-height: 32px;
  transition: all 0.2s ease;
}

.pill.active {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  color: white;
}

.events-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.event-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  flex-wrap: wrap;
  gap: 12px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.event-card:hover {
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.event-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 6px;
  letter-spacing: 0.4px;
}

.badge-car { background: rgba(6, 182, 212, 0.2); color: var(--accent-cyan); border: 1px solid rgba(6, 182, 212, 0.4); }
.badge-face { background: rgba(16, 185, 129, 0.2); color: var(--accent-green); border: 1px solid rgba(16, 185, 129, 0.4); }
.badge-stranger { background: rgba(239, 68, 68, 0.2); color: var(--accent-red); border: 1px solid rgba(239, 68, 68, 0.4); }

.event-details {
  flex: 1;
  min-width: 200px;
}

.event-title {
  font-size: 0.92rem;
}

.event-meta {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.event-time {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.event-actions {
  display: flex;
  gap: 8px;
}

.btn-sm {
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.76rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  min-height: 32px;
}

.btn-telegram { background: #229ED9; color: white; }
.btn-play { background: var(--bg-secondary); color: var(--text-main); border: 1px solid var(--border-color); }
.btn-alert { background: var(--accent-red); color: white; }

/* Cloud Storage */
.storage-indicator {
  min-width: 220px;
}

.storage-bar {
  width: 100%;
  height: 8px;
  background: var(--bg-card);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 4px;
}

.storage-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-green));
}

.storage-text {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.timeline-browser {
  margin-top: 12px;
}

.date-navigator {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 14px;
}

.btn-date {
  padding: 6px 12px;
  border-radius: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-size: 0.8rem;
  cursor: pointer;
  min-height: 32px;
}

.current-date {
  font-weight: 600;
  font-size: 0.88rem;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}

.video-card {
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.video-thumb-placeholder {
  height: 140px;
  background: linear-gradient(135deg, #1e293b, #0f172a);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0, 0, 0, 0.7);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 600;
}

.video-time-tag {
  position: absolute;
  top: 8px;
  left: 8px;
  background: rgba(0, 0, 0, 0.7);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.72rem;
}

.video-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  font-size: 0.8rem;
}

.btn-download {
  padding: 4px 10px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--accent-cyan);
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.75rem;
}

/* Homelight Bridge */
.bridge-box {
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  padding: 16px;
  border: 1px solid var(--border-color);
}

.bridge-box p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.code-box {
  background: #090d16;
  padding: 12px;
  border-radius: 6px;
  font-family: monospace;
  font-size: 0.85rem;
  color: var(--accent-cyan);
  overflow-x: auto;
}

/* Modal */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 16px;
}

.modal-backdrop.active {
  display: flex;
}

.modal-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 520px;
  padding: 24px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}

.btn-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.2rem;
  cursor: pointer;
  width: 32px;
  height: 32px;
}

.form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 6px;
  margin-top: 14px;
  color: var(--text-muted);
}

.form-input {
  width: 100%;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-size: 0.88rem;
}

.form-input:focus {
  outline: none;
  border-color: var(--accent-blue);
}

.modal-actions {
  margin-top: 22px;
}

.btn-save {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  background: var(--accent-blue);
  color: white;
  border: none;
  font-weight: 700;
  font-size: 0.92rem;
  cursor: pointer;
}

/* Responsive Overrides (Screen <= 768px) */
@media (max-width: 768px) {
  .ptz-panel {
    flex-direction: column;
    align-items: stretch;
  }
  .ptz-controls-cluster {
    justify-content: center;
  }
  .event-card {
    flex-direction: column;
    align-items: flex-start;
  }
  .event-actions {
    width: 100%;
    justify-content: flex-end;
  }
}