:root {
  /* Core Brand & Automotive Authority Palette */
  --red: #E11D48;
  --red-dark: #BE123C;
  --red-deep: #9F1239;
  --red-light: #FB7185;
  --red-soft: #FFF1F2;
  --red-border: #FFE4E6;
  --red-glow: rgba(225, 29, 72, 0.18);
  
  /* Emergency Amber & Signal Colors */
  --amber: #F59E0B;
  --amber-dark: #D97706;
  --amber-soft: #FEF3C7;
  --amber-border: #FDE68A;
  
  /* Active Online & Verified Green */
  --green: #10B981;
  --green-dark: #059669;
  --green-soft: #ECFDF5;
  --green-border: #A7F3D0;
  --green-glow: rgba(16, 185, 129, 0.2);

  /* Deep Carbon & Industrial Dark Canvas */
  --black: #090D14;
  --dark: #0F172A;
  --dark-surface: #1E293B;
  --dark-card: #151F32;
  --dark-border: #24344D;
  
  /* Clean Light Surface & Typography */
  --text: #0F172A;
  --text-secondary: #334155;
  --text-muted: #64748B;
  --text-light: #94A3B8;
  --white: #FFFFFF;
  --surface: #E2E8F0;
  --surface-alt: #CBD5E1;
  --surface-muted: #F1F5F9;
  --surface-card: #FFFFFF;
  --border: #CBD5E1;
  --border-light: #E2E8F0;
  --border-focus: #94A3B8;

  /* Aliases for Full Compatibility */
  --primary: var(--red);
  --primary-dark: var(--red-dark);
  --muted: var(--text-muted);

  /* Gradients: Subtle, Clean, Authentic Industrial (No Neon AI Gimmicks) */
  --grad-red: linear-gradient(135deg, #E11D48 0%, #BE123C 100%);
  --grad-red-hover: linear-gradient(135deg, #F43F5E 0%, #E11D48 100%);
  --grad-dark: linear-gradient(180deg, #090D14 0%, #0F172A 100%);
  --grad-card-dark: linear-gradient(180deg, rgba(30, 41, 59, 0.7) 0%, rgba(15, 23, 42, 0.9) 100%);
  --grad-hero-overlay: linear-gradient(180deg, rgba(9, 13, 20, 0.82) 0%, rgba(9, 13, 20, 0.95) 100%);
  --grad-shimmer: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.25) 50%, transparent 100%);

  /* Typography */
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  
  /* Dimensions & Spacing */
  --page-max: 1280px;
  --content-max: 1200px;
  --header-height: 74px;
  --section-pad-desktop: 76px;
  --section-pad-mobile: 44px;

  /* Radius */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-card: 16px;
  --radius-btn: 10px;
  --radius-pill: 9999px;

  /* Shadows: Deep, Natural Physical Light (No Blurry AI Halos) */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 8px 20px -4px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 32px -8px rgba(15, 23, 42, 0.12);
  --shadow-xl: 0 24px 48px -12px rgba(15, 23, 42, 0.16);
  --shadow-card-hover: 0 16px 32px -6px rgba(15, 23, 42, 0.10), 0 0 0 1px rgba(225, 29, 72, 0.12);
  --shadow-dark-card: 0 12px 30px rgba(0, 0, 0, 0.35);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 240ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 350ms cubic-bezier(0.16, 1, 0.3, 1);
}