/* ============================================
   VARIABLES.CSS - Design System Tokens
   ============================================ */

:root {
    /* ---- Color Palette ---- */
    --color-primary: #6366F1;
    --color-primary-hover: #4F46E5;
    --color-primary-active: #4338CA;
    --color-primary-light: #EEF2FF;
    --color-primary-rgb: 99, 102, 241;

    --color-secondary: #8B5CF6;
    --color-secondary-hover: #7C3AED;
    --color-secondary-active: #6D28D9;
    --color-secondary-light: #F5F3FF;
    --color-secondary-rgb: 139, 92, 246;

    --color-success: #10B981;
    --color-success-hover: #059669;
    --color-success-active: #047857;
    --color-success-light: #ECFDF5;
    --color-success-rgb: 16, 185, 129;

    --color-info: #06B6D4;
    --color-info-hover: #0891B2;
    --color-info-active: #0E7490;
    --color-info-light: #ECFEFF;
    --color-info-rgb: 6, 182, 212;

    --color-warning: #F59E0B;
    --color-warning-hover: #D97706;
    --color-warning-active: #B45309;
    --color-warning-light: #FFFBEB;
    --color-warning-rgb: 245, 158, 11;

    --color-danger: #EF4444;
    --color-danger-hover: #DC2626;
    --color-danger-active: #B91C1C;
    --color-danger-light: #FEF2F2;
    --color-danger-rgb: 239, 68, 68;

    --color-dark: #1E293B;
    --color-dark-hover: #0F172A;
    --color-dark-active: #020617;
    --color-dark-light: #F1F5F9;
    --color-dark-rgb: 30, 41, 59;

    --color-light: #F8FAFC;
    --color-light-hover: #F1F5F9;
    --color-light-active: #E2E8F0;
    --color-light-light: #FFFFFF;
    --color-light-rgb: 248, 250, 252;

    /* ---- Neutral Colors ---- */
    --color-white: #FFFFFF;
    --color-black: #000000;
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-300: #D1D5DB;
    --color-gray-400: #9CA3AF;
    --color-gray-500: #6B7280;
    --color-gray-600: #4B5563;
    --color-gray-700: #374151;
    --color-gray-800: #1F2937;
    --color-gray-900: #111827;

    /* ---- Typography ---- */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-family-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

    --font-size-xs: 0.75rem;
    /* 12px */
    --font-size-sm: 0.875rem;
    /* 14px */
    --font-size-base: 1rem;
    /* 16px */
    --font-size-lg: 1.125rem;
    /* 18px */
    --font-size-xl: 1.25rem;
    /* 20px */
    --font-size-2xl: 1.5rem;
    /* 24px */
    --font-size-3xl: 1.875rem;
    /* 30px */
    --font-size-4xl: 2.25rem;
    /* 36px */
    --font-size-5xl: 3rem;
    /* 48px */
    --font-size-6xl: 3.75rem;
    /* 60px */

    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;

    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;

    /* ---- Spacing ---- */
    --spacing-0: 0;
    --spacing-1: 0.25rem;
    /* 4px */
    --spacing-2: 0.5rem;
    /* 8px */
    --spacing-3: 0.75rem;
    /* 12px */
    --spacing-4: 1rem;
    /* 16px */
    --spacing-5: 1.25rem;
    /* 20px */
    --spacing-6: 1.5rem;
    /* 24px */
    --spacing-8: 2rem;
    /* 32px */
    --spacing-10: 2.5rem;
    /* 40px */
    --spacing-12: 3rem;
    /* 48px */
    --spacing-16: 4rem;
    /* 64px */
    --spacing-20: 5rem;
    /* 80px */
    --spacing-24: 6rem;
    /* 96px */

    /* ---- Border Radius ---- */
    --radius-none: 0;
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* ---- Shadows ---- */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow-primary: 0 0 20px rgba(var(--color-primary-rgb), 0.4);
    --shadow-glow-secondary: 0 0 20px rgba(var(--color-secondary-rgb), 0.4);
    --shadow-glow-success: 0 0 20px rgba(var(--color-success-rgb), 0.4);
    --shadow-glow-danger: 0 0 20px rgba(var(--color-danger-rgb), 0.4);
    --shadow-glass: 0 8px 32px 0 rgba(31, 38, 135, 0.15);

    /* ---- Transitions ---- */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    --transition-spring: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);

    /* ---- Z-Index Scale ---- */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-popover: 600;
    --z-tooltip: 700;

    /* ---- Container widths ---- */
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1280px;
    --container-2xl: 1400px;

    /* ---- Glassmorphism ---- */
    --glass-bg: rgba(255, 255, 255, 0.15);
    --glass-border: rgba(255, 255, 255, 0.25);
    --glass-blur: 12px;

    /* ---- Body defaults ---- */
    --body-bg: #0F0F1A;
    --body-color: #E2E8F0;
    --body-bg-gradient: linear-gradient(135deg, #0F0F1A 0%, #1a1a2e 50%, #16213e 100%);
}