:root {
    color-scheme: dark;
    --color-bg: #0A0E1A;
    --color-bg-alt: #111827;
    --color-bg-tertiary: #1F2937;
    --color-text-primary: #F9FAFB;
    --color-text-secondary: #9CA3AF;
    --color-text-muted: #6B7280;
    --color-white: #FFFFFF;
    --color-primary: #6366F1;
    --color-primary-hover: #4F46E5;
    --color-secondary: #EC4899;
    --color-secondary-hover: #DB2777;
    --color-accent: #14B8A6;
    --color-accent-hover: #0D9488;
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-error: #EF4444;
    --color-border: rgba(255, 255, 255, 0.1);
    --color-border-hover: rgba(255, 255, 255, 0.2);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-btn: 12px;
    --radius-card: 16px;
    --shadow-sm: 0 1px 3px 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);
    --font-display: "DM Sans", "Inter", system-ui, -apple-system, sans-serif;
    --font-sans: "Inter", system-ui, -apple-system, sans-serif;
    --font-mono: "SF Mono", "Monaco", monospace;
    --text-xs: 0.875rem;
    --text-sm: 1rem;
    --text-base: 1.125rem;
    --text-lg: 1.25rem;
    --text-xl: clamp(1.5rem, 2vw, 1.75rem);
    --text-2xl: clamp(2rem, 4vw, 3rem);
    --text-3xl: clamp(2.5rem, 5vw, 4rem);
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;
    --space-7: 48px;
    --space-8: 64px;
    --space-9: 80px;
    --space-10: 96px;
    --shell-width: min(100% - 2rem, 1280px);
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --transition: 0.2s var(--ease-out);
    --transition-slow: 0.3s var(--ease-out);
}