/* HAI Surveillance System - Custom Styles */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

:root {
  --bg-primary: #0b1120;
  --bg-secondary: #0f172a;
  --bg-card: #1e293b;
  --bg-hover: #334155;
  --border: #334155;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #06b6d4;
}

[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-hover: #f1f5f9;
  --border: #e2e8f0;
  --text-primary: #0f172a;
  --text-secondary: #475569;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: 'Tajawal', system-ui, sans-serif;
  transition: background-color 0.3s, color 0.3s;
}

.bg-app { background-color: var(--bg-primary); }
.bg-card { background-color: var(--bg-card); }
.bg-secondary { background-color: var(--bg-secondary); }
.bg-hover:hover { background-color: var(--bg-hover); }
.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.border-app { border-color: var(--border); }

/* Sidebar */
.sidebar {
  background: var(--bg-secondary);
  border-left: 1px solid var(--border);
  min-height: 100vh;
}
.sidebar-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 10px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  font-weight: 500;
}
.sidebar-link:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}
.sidebar-link.active {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: white;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}
.sidebar-link i { width: 20px; text-align: center; }

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  transition: all 0.3s;
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

/* Stat Card */
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--info));
}
.stat-card.danger::before { background: linear-gradient(90deg, #ef4444, #f97316); }
.stat-card.warning::before { background: linear-gradient(90deg, #f59e0b, #eab308); }
.stat-card.success::before { background: linear-gradient(90deg, #10b981, #14b8a6); }
.stat-card.info::before { background: linear-gradient(90deg, #06b6d4, #3b82f6); }

/* Inputs */
.input, .select, textarea {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 14px;
  color: var(--text-primary);
  width: 100%;
  font-family: inherit;
  font-size: 14px;
  transition: all 0.2s;
}
.input:focus, .select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}
[data-theme="light"] .input, [data-theme="light"] .select, [data-theme="light"] textarea {
  background: #fff;
}

label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-secondary);
}

/* Buttons */
.btn {
  padding: 10px 18px;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-family: inherit;
}
.btn-primary {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: white;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(59,130,246,0.4); }
.btn-secondary {
  background: var(--bg-hover);
  color: var(--text-primary);
}
.btn-secondary:hover { opacity: 0.85; }
.btn-success { background: linear-gradient(135deg, #10b981, #059669); color: white; }
.btn-success:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(16,185,129,0.4); }
.btn-danger { background: #ef4444; color: white; }
.btn-danger:hover { background: #dc2626; }
.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-outline:hover { background: var(--bg-hover); }

/* Tables */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.data-table thead {
  background: var(--bg-secondary);
}
.data-table th {
  padding: 12px;
  text-align: right;
  font-weight: 700;
  color: var(--text-primary);
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.data-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text-primary);
}
.data-table tbody tr:hover { background: var(--bg-hover); }
.data-table .actions { white-space: nowrap; }

.table-wrap {
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid var(--border);
}

/* Badges */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
}
.badge-success { background: rgba(16,185,129,0.15); color: #10b981; }
.badge-danger { background: rgba(239,68,68,0.15); color: #ef4444; }
.badge-warning { background: rgba(245,158,11,0.15); color: #f59e0b; }
.badge-info { background: rgba(6,182,212,0.15); color: #06b6d4; }
.badge-secondary { background: rgba(148,163,184,0.15); color: var(--text-secondary); }

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  animation: fadeIn 0.2s;
}
.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  width: 100%;
  max-width: 1000px;
  max-height: 90vh;
  overflow-y: auto;
  animation: slideUp 0.3s;
}
.modal-sm { max-width: 600px; }
.modal-header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  background: var(--bg-card);
  z-index: 10;
}
.modal-body { padding: 24px; }
.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 10px;
  justify-content: flex-start;
  position: sticky;
  bottom: 0;
  background: var(--bg-card);
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

/* Form grid */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}
.form-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.form-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 768px) {
  .form-grid, .form-grid.cols-3, .form-grid.cols-4 { grid-template-columns: 1fr; }
}

.section-title {
  font-size: 14px;
  font-weight: 700;
  margin: 16px 0 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--accent);
  color: var(--accent);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 24px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.3);
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideUp 0.3s;
}
.toast.success { border-color: #10b981; }
.toast.error { border-color: #ef4444; }

/* Loader */
.spinner {
  border: 3px solid rgba(255,255,255,0.1);
  border-top-color: var(--accent);
  border-radius: 50%;
  width: 32px;
  height: 32px;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Header */
.app-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 30;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 18px;
}
.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 20px;
}

/* Theme toggle */
.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}
.theme-toggle:hover { background: var(--bg-hover); }

/* Filters bar */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: end;
  margin-bottom: 16px;
}
.filters > div { min-width: 160px; flex: 1; }

/* Layout */
.layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  min-height: 100vh;
}
@media (max-width: 1024px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { display: none; position: fixed; z-index: 40; width: 250px; right: 0; }
  .sidebar.show { display: block; }
}

.main-content { padding: 24px; max-width: 1600px; }
.page-title {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 4px;
}
.page-subtitle {
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-size: 14px;
}

/* Charts container */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 16px;
}

/* Risk indicators */
.risk-icon {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-left: 6px;
}
.risk-icon.danger { background: #ef4444; box-shadow: 0 0 8px #ef4444; animation: pulse 2s infinite; }
.risk-icon.warning { background: #f59e0b; }
.risk-icon.safe { background: #10b981; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.5; } }

/* Tabs */
.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
  overflow-x: auto;
}
.tab {
  padding: 10px 18px;
  cursor: pointer;
  color: var(--text-secondary);
  font-weight: 600;
  border-bottom: 3px solid transparent;
  white-space: nowrap;
  transition: all 0.2s;
}
.tab:hover { color: var(--text-primary); }
.tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* Empty state */
.empty {
  text-align: center;
  padding: 48px 16px;
  color: var(--text-secondary);
}
.empty i { font-size: 48px; margin-bottom: 12px; opacity: 0.5; }

/* Print */
@media print {
  .sidebar, .app-header, .btn, .filters { display: none !important; }
  .main-content { padding: 0; }
  .card { break-inside: avoid; }
}

/* Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }