/* BioXR Public Site — Design Tokens */

:root {
    /* Brand palette */
    --color-navy: #0a0e27;
    --color-navy-light: #131940;
    --color-blue: #3b82f6;
    --color-blue-light: #60a5fa;
    --color-cyan: #06b6d4;
    --color-teal: #14b8a6;
    --color-green: #22c55e;
    --color-white: #ffffff;
    --color-gray-50: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    --color-gray-900: #0f172a;

    /* Gradients */
    --gradient-hero: linear-gradient(135deg, #0a0e27 0%, #131940 40%, #0f2847 70%, #0a1628 100%);
    --gradient-accent: linear-gradient(135deg, var(--color-blue), var(--color-cyan));
    --gradient-card: linear-gradient(180deg, rgba(59, 130, 246, 0.05) 0%, transparent 100%);

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', monospace;
    --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: clamp(2rem, 4vw, 2.5rem);
    --text-5xl: clamp(2.5rem, 5vw, 3.5rem);
    --text-hero: clamp(2.75rem, 6vw, 4.5rem);
    --line-tight: 1.1;
    --line-snug: 1.3;
    --line-normal: 1.6;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --section-padding: clamp(4rem, 8vw, 7rem);

    /* Borders & Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
    --shadow-glow: 0 0 40px rgba(59, 130, 246, 0.15);

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --duration-fast: 150ms;
    --duration-normal: 300ms;
    --duration-slow: 500ms;

    /* Layout */
    --max-width: 1200px;
    --nav-height: 72px;
}

@media (max-width: 768px) {
    :root {
        --nav-height: 60px;
        --section-padding: clamp(3rem, 6vw, 5rem);
    }
}