:root {
  --bg-primary: #0A0A0F;
  --bg-secondary: #12121A;
  --bg-tertiary: #1A1A25;
  --bg-hover: #22222F;
  --bg-active: #2A2A38;
  --text-primary: #F0F0F5;
  --text-secondary: #8888A0;
  --text-muted: #555568;
  --text-inverse: #0A0A0F;
  --border-subtle: #1E1E2A;
  --border-default: #2A2A38;
  --border-strong: #3A3A4A;
  --cat-sports: #FF6B35;
  --cat-space: #7B68EE;
  --cat-politics: #2ECC71;
  --cat-technology: #00D4FF;
  --cat-culture: #FF69B4;
  --cat-economics: #FFD700;
  --cat-humanitarian: #FF4444;
  --cat-astronomy: #9370DB;
  --status-confirmed: #2ECC71;
  --status-potential: #FFD700;
  --status-disputed: #FF4444;
  --status-cancelled: #555568;
  --status-completed: #4A90D9;
  --tier-1: #FFD700;
  --tier-2: #C0C0C0;
  --tier-3: #CD7F32;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 400ms ease;
}