/* ==========================================================================
   THE CITY EXPRESS - DESIGN SYSTEM VARIABLES (iOS 18 PREMIUM AESTHETICS)
   ========================================================================== */

:root {
  /* Light Theme Palette */
  --bg-primary: #F2F2F7; /* iOS System Gray 6 */
  --bg-secondary: #FFFFFF;
  --bg-tertiary: #E5E5EA; /* iOS System Gray 5 */
  --bg-elevated: #FFFFFF;
  --bg-glass: rgba(255, 255, 255, 0.82);

  --text-primary: #000000;
  --text-secondary: #3C3C43;
  --text-muted: #8E8E93;
  --text-inverse: #FFFFFF;

  --border-color: rgba(60, 60, 67, 0.12);
  --border-hover: rgba(60, 60, 67, 0.25);

  /* Brand Accents */
  --brand-red: #FF3B30; /* iOS System Red */
  --brand-red-hover: #D70015;
  --brand-amber: #FF9500; /* iOS System Orange */
  --brand-gold: #FFCC00; /* iOS System Yellow */
  --brand-blue: #007AFF; /* iOS System Blue */
  --brand-green: #34C759; /* iOS System Green */

  /* Layout Dimensions */
  --header-height: 64px;
  --ticker-height: 38px;
  --sidebar-left-width: 240px;
  --sidebar-right-width: 320px;
  --container-max-width: 1360px;
  --mobile-nav-height: 60px;

  /* Typography */
  --font-latin: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Plus Jakarta Sans', sans-serif;
  --font-hindi: 'Noto Sans Devanagari', sans-serif;

  /* iOS 18 Elevation & Curvature */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px; /* iOS Continuous Corner Radius */
  --radius-full: 9999px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06), 0 2px 6px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.1), 0 4px 12px rgba(0, 0, 0, 0.05);

  --transition-fast: 0.15s cubic-bezier(0.2, 0, 0, 1);
  --transition-normal: 0.25s cubic-bezier(0.2, 0, 0, 1);
}

/* Dark Mode Overrides (iOS Dark Mode Aesthetic) */
[data-theme="dark"] {
  --bg-primary: #000000; /* iOS Dark System Background */
  --bg-secondary: #1C1C1E; /* iOS Dark Secondary Grouped */
  --bg-tertiary: #2C2C2E; /* iOS Dark Tertiary Grouped */
  --bg-elevated: #2C2C2E;
  --bg-glass: rgba(28, 28, 30, 0.85);

  --text-primary: #FFFFFF;
  --text-secondary: #EBEBF5;
  --text-muted: #8E8E93;
  --text-inverse: #000000;

  --border-color: rgba(255, 255, 255, 0.15);
  --border-hover: rgba(255, 255, 255, 0.3);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.6);
}