:root {
  /* Primary Brand Colors */
  --color-asphalt: #121212;
  --color-asphalt-deep: #0A0A0A;
  --color-asphalt-surface: #1A1A1A;
  --color-sol-rosa: #F2D4D7;
  --color-dark-pink: #F09491;
  --color-armour: #D0D0CE;
  --color-white: #FFFFFF;

  /* Semantic Colors (muted for dark theme) */
  --color-positive: #4A7C59;
  --color-negative: #8B4A4A;
  --color-warning: #8B7355;

  /* Background Layers - LIGHT MODE */
  --bg-base: #FFFFFF;
  --bg-surface: #F8F8F8;
  --bg-elevated: #FFFFFF;

  /* Text Colors - LIGHT MODE */
  --text-primary: #121212;
  --text-secondary: #666666;
  --text-muted: rgba(18, 18, 18, 0.5);

  /* Typography */
  --font-primary: 'Lato', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-accent: 'Oswald' sans-serif;

  /* Type Scale */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.25rem;
  --text-xl: 1.5rem;
  --text-2xl: 2rem;
  --text-3xl: 2.5rem;
  --text-4xl: 3rem;
  --text-5xl: 3.5rem;

  /* Font Weights */
  --weight-normal: 400;
  --weight-medium: 500;
  --weight-bold: 700;

  /* Line Heights */
  --leading-tight: 1.25;
  --leading-normal: 1.5;
  --leading-relaxed: 1.75;

  /* Spacing Scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* Borders - LIGHT MODE */
  --border-subtle: 1px solid rgba(18, 18, 18, 0.08);
  --border-visible: 1px solid rgba(18, 18, 18, 0.12);

  /* Shadows - LIGHT MODE (softer) */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.12);

  /* Gradients */
  --gradient-brand: linear-gradient(135deg, var(--color-sol-rosa) 0%, var(--color-dark-pink) 100%);
  --gradient-brand-subtle: linear-gradient(135deg, rgba(242, 212, 215, 0.15) 0%, rgba(240, 148, 145, 0.15) 100%);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 400ms ease;

  /* Layout */
  --header-height: 64px;
  --sidebar-width: 240px;
  --max-content-width: 2000px;

  /* Z-Index Scale */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-toast: 500;
}