:root {
    /* === Brand Colors === */
    --color-teal: #2DD4BF;
    --color-blue: #3B82F6;
    --color-purple: #A855F7;
    --color-magenta: #E040A0;
    --color-pink: #F43F5E;
    --color-orange: #F97316;
    --color-amber: #FBBF24;

    /* === Brand Gradients === */
    --gradient-brand: linear-gradient(135deg, #2DD4BF, #3B82F6, #A855F7, #F43F5E, #F97316, #FBBF24);
    --gradient-brand-horizontal: linear-gradient(90deg, #2DD4BF, #3B82F6, #A855F7, #F43F5E, #F97316, #FBBF24);
    --gradient-cta: linear-gradient(135deg, #3B82F6, #A855F7);
    --gradient-teal-blue: linear-gradient(135deg, #2DD4BF, #3B82F6);
    --gradient-purple-pink: linear-gradient(135deg, #A855F7, #F43F5E);
    --gradient-warm: linear-gradient(135deg, #F43F5E, #F97316, #FBBF24);

    /* === Dark Background Tiers === */
    --bg-primary: #0A0A0F;
    --bg-secondary: #12121A;
    --bg-tertiary: #1A1A2E;
    --bg-glass: rgba(255, 255, 255, 0.03);
    --bg-glass-hover: rgba(255, 255, 255, 0.06);

    /* === Text Hierarchy === */
    --text-primary: #F1F1F3;
    --text-secondary: #A0A0B0;
    --text-tertiary: #6B6B80;

    /* === Borders === */
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-default: rgba(255, 255, 255, 0.10);
    --border-hover: rgba(255, 255, 255, 0.15);

    /* === Legacy neutral palette (mapped to dark equivalents) === */
    --color-black: #000000;
    --color-gray-900: #F1F1F3;
    --color-gray-800: #E0E0E6;
    --color-gray-700: #C0C0CC;
    --color-gray-600: #A0A0B0;
    --color-gray-500: #6B6B80;
    --color-gray-400: #50506A;
    --color-gray-300: #2A2A3E;
    --color-gray-200: rgba(255, 255, 255, 0.10);
    --color-gray-100: rgba(255, 255, 255, 0.06);
    --color-gray-50: #12121A;
    --color-white: #12121A;

    /* === Typography === */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-accent: 'Sora', 'Space Grotesk', sans-serif;

    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;

    /* === Spacing === */
    --section-padding-y: 5rem;
    --section-padding-y-lg: 7rem;

    /* === Border Radius === */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* === Shadows (dark-optimized) === */
    --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 10px 25px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.6);

    /* === Glow Effects === */
    --glow-blue: 0 0 40px rgba(59, 130, 246, 0.15);
    --glow-purple: 0 0 40px rgba(168, 85, 247, 0.15);
    --glow-teal: 0 0 40px rgba(45, 212, 191, 0.15);
    --glow-pink: 0 0 40px rgba(244, 63, 94, 0.15);
    --glow-orange: 0 0 40px rgba(249, 115, 22, 0.15);

    /* === Transitions === */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}