/* ============================================
   CCTV Monitoring — Global Styles
   ============================================ */
:root {
  --bg-dark: #0b0f19;
  --bg-card: #111827;
  --bg-card-alt: #1e293b;
  --bg-surface: #162032;
  --border: #1e3a5f;
  --border-light: #334155;
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-glow: rgba(59, 130, 246, 0.25);
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --transition: 0.2s ease;
}

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

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ============================================
   LOGIN PAGE
   ============================================ */
.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  overflow: hidden;
  position: relative;
}

.login-bg {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(16, 185, 129, 0.08) 0%, transparent 50%),
    var(--bg-dark);
  z-index: 0;
}

.login-container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 440px;
  padding: 20px;
}

.login-card {
  background: rgba(17, 24, 39, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 40px 36px;
  box-shadow: var(--shadow), 0 0 60px rgba(59, 130, 246, 0.08);
}

.login-logo {
  text-align: center;
  margin-bottom: 32px;
}

.logo-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, var(--accent), #8b5cf6);
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
}

.logo-icon svg {
  width: 32px;
  height: 32px;
  color: #fff;
}

.login-logo h1 {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #e2e8f0, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-subtitle {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 4px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 14px;
  width: 18px;
  height: 18px;
  color: var(--text-muted);
  pointer-events: none;
  transition: color var(--transition);
}

.input-wrapper input {
  width: 100%;
  padding: 12px 14px 12px 44px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.input-wrapper input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.input-wrapper input:focus ~ .input-icon,
.input-wrapper input:focus + .input-icon {
  color: var(--accent);
}

.input-wrapper input::placeholder {
  color: var(--text-muted);
}

.toggle-pass {
  position: absolute;
  right: 10px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--text-muted);
  transition: color var(--transition);
}

.toggle-pass:hover { color: var(--text-primary); }
.toggle-pass svg { width: 18px; height: 18px; }

.login-error {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-sm);
  color: #fca5a5;
  font-size: 0.85rem;
  padding: 10px 14px;
  margin-bottom: 16px;
  text-align: center;
}

.btn-login {
  width: 100%;
  padding: 13px;
  background: linear-gradient(135deg, var(--accent), #6366f1);
  border: none;
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.3);
}

.btn-login:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(59, 130, 246, 0.4);
}

.btn-login:active { transform: translateY(0); }
.btn-login:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-login svg { width: 18px; height: 18px; }

.login-footer {
  text-align: center;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

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

/* ============================================
   DASHBOARD PAGE
   ============================================ */
.dashboard-body { display: flex; min-height: 100vh; }

/* Sidebar */
.sidebar {
  width: 260px;
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  transition: transform 0.3s ease;
}

.sidebar-header {
  padding: 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar-header .logo-sm {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent), #8b5cf6);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.sidebar-header .logo-sm svg { width: 20px; height: 20px; color: #fff; }

.sidebar-header h2 {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.2;
}

.sidebar-header small {
  color: var(--text-muted);
  font-size: 0.72rem;
  display: block;
}

.sidebar-nav { flex: 1; overflow-y: auto; padding: 16px 12px; }

.nav-section {
  margin-bottom: 20px;
}

.nav-section-title {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 0 8px;
  margin-bottom: 8px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.nav-item:hover { background: var(--bg-surface); color: var(--text-primary); }
.nav-item.active { background: var(--accent-glow); color: var(--accent); }
.nav-item svg { width: 18px; height: 18px; flex-shrink: 0; }

.nav-item .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-left: auto;
  flex-shrink: 0;
}

.status-dot.online { background: var(--success); box-shadow: 0 0 6px rgba(16, 185, 129, 0.5); }
.status-dot.offline { background: var(--danger); }
.status-dot.unknown { background: var(--text-muted); }

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
}

.btn-logout {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 10px 14px;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.2);
  border-radius: var(--radius-sm);
  color: #fca5a5;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition);
}

.btn-logout:hover { background: rgba(239, 68, 68, 0.2); }
.btn-logout svg { width: 18px; height: 18px; }

/* Main Content */
.main-content {
  flex: 1;
  margin-left: 260px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn-hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 4px;
}

.btn-hamburger svg { width: 24px; height: 24px; }

.topbar h1 {
  font-size: 1.15rem;
  font-weight: 700;
}

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

.topbar-right .clock {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
}

.badge-live {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--success);
}

.badge-live .pulse {
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  animation: pulse-anim 1.5s infinite;
}

@keyframes pulse-anim {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

/* Camera Grid */
.content-area {
  flex: 1;
  padding: 20px 24px;
}

.camera-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(420px, 1fr));
  gap: 16px;
}

.camera-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.camera-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 20px var(--accent-glow);
}

.camera-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
}

.camera-header .cam-info {
  display: flex;
  align-items: center;
  gap: 8px;
}

.camera-header .cam-info .cam-name {
  font-size: 0.85rem;
  font-weight: 600;
}

.camera-header .cam-info .cam-nvr {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.camera-header .cam-status {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 12px;
}

.cam-status.live {
  background: rgba(16, 185, 129, 0.15);
  color: var(--success);
}

.cam-status.error {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger);
}

.camera-video {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  background: #000;
}

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

.camera-video .cam-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  background: rgba(0, 0, 0, 0.6);
  transition: opacity var(--transition);
}

.camera-video .cam-overlay.hidden { opacity: 0; pointer-events: none; }

.cam-overlay .spinner {
  width: 28px;
  height: 28px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-right: 10px;
}

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

/* Fullscreen button */
.btn-fullscreen {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.6);
  border: 1px solid rgba(255,255,255,0.15);
  color: #fff;
  border-radius: 6px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transition: opacity var(--transition);
  z-index: 5;
}

.camera-video:hover .btn-fullscreen { opacity: 1; }
.btn-fullscreen svg { width: 16px; height: 16px; }

/* Empty state / filter */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.filter-bar select,
.filter-bar input {
  padding: 8px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.85rem;
  outline: none;
  transition: border-color var(--transition);
}

.filter-bar select:focus,
.filter-bar input:focus {
  border-color: var(--accent);
}

.stats-bar {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 20px;
  flex: 1;
  min-width: 140px;
}

.stat-card .stat-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat-card .stat-value {
  font-size: 1.6rem;
  font-weight: 700;
  margin-top: 2px;
}

.stat-value.text-green { color: var(--success); }
.stat-value.text-red { color: var(--danger); }
.stat-value.text-blue { color: var(--accent); }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .btn-hamburger { display: block; }
  .camera-grid { grid-template-columns: 1fr; }
  .login-card { padding: 28px 24px; }
}

@media (max-width: 480px) {
  .stats-bar { flex-direction: column; }
  .filter-bar { flex-direction: column; align-items: stretch; }
}

/* Sidebar overlay for mobile */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 99;
}

.sidebar-overlay.active { display: block; }