/**
 * Design System Variables
 * 
 * @package TheCoinsPost
 */

:root {
    /* === Colors === */
    /* Primary */
    --color-primary: #0052FF;
    --color-primary-light: #3373FF;
    --color-primary-dark: #0041CC;

    /* Accent (Bitcoin Orange) */
    --color-accent: #F7931A;
    --color-accent-light: #FFB347;
    --color-accent-dark: #CC7A15;

    /* Neutrals */
    --color-white: #FFFFFF;
    --color-bg: #FFFFFF;
    --color-bg-secondary: #F8FAFC;
    --color-bg-tertiary: #F1F5F9;

    /* Text */
    --color-text: #1A1A1A;
    --color-text-secondary: #4A5568;
    --color-text-muted: #6B7280;
    --color-text-light: #9CA3AF;

    /* Borders */
    --color-border: #E5E7EB;
    --color-border-light: #F3F4F6;

    /* Status */
    --color-success: #10B981;
    --color-error: #EF4444;
    --color-warning: #F59E0B;

    /* Ticker */
    --color-ticker-up: #10B981;
    --color-ticker-down: #EF4444;

    /* === Typography === */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;

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

    /* Font Weights */
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;

    /* Line Heights */
    --leading-none: 1;
    --leading-tight: 1.25;
    --leading-snug: 1.375;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;

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

    /* === Layout === */
    --container-max: 1280px;
    --container-narrow: 720px;
    --sidebar-width: 320px;
    --header-height: 64px;
    --ticker-height: 40px;

    /* === Borders === */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --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 -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

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

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

/* Dark mode support (optional) */
@media (prefers-color-scheme: dark) {
    :root.auto-dark {
        --color-bg: #0F172A;
        --color-bg-secondary: #1E293B;
        --color-bg-tertiary: #334155;
        --color-text: #F1F5F9;
        --color-text-secondary: #CBD5E1;
        --color-text-muted: #94A3B8;
        --color-border: #334155;
        --color-border-light: #475569;
    }
}