/* ============================================
   CSS CUSTOM PROPERTIES — DESIGN TOKENS
   Gribov Media Theme v1.0.0
   ============================================ */

:root {
    --color-primary: #1B2845;
    --color-primary-light: #274060;
    --color-primary-dark: #0F1A2E;
    --color-accent: #C53030;
    --color-accent-hover: #E53E3E;
    --color-accent-light: rgba(197, 48, 48, 0.1);

    --color-bg: #F5F6F8;
    --color-bg-alt: #EBEDF0;
    --color-surface: #FFFFFF;
    --color-surface-hover: #F7F8FA;
    --color-surface-active: #EDF0F4;

    --color-text: #1A202C;
    --color-text-secondary: #4A5568;
    --color-text-muted: #A0AEC0;
    --color-text-inverse: #FFFFFF;

    --color-border: #E2E8F0;
    --color-border-light: #EDF2F7;
    --color-divider: #E2E8F0;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.05), 0 2px 4px rgba(0,0,0,0.04);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.06), 0 4px 6px rgba(0,0,0,0.04);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.08), 0 8px 10px rgba(0,0,0,0.04);
    --shadow-card: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-card-hover: 0 8px 24px rgba(0,0,0,0.1);

    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 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;

    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;

    --container-max: 1280px;
    --container-narrow: 720px;
    --content-padding: 1.5rem;
    --sidebar-width: 340px;
    --header-height: 72px;

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    --z-dropdown: 100;
    --z-sticky: 200;
    --z-overlay: 300;
    --z-modal: 400;
}

/* Dark Mode */
[data-theme="dark"] {
    --color-primary: #3B82F6;
    --color-primary-light: #60A5FA;
    --color-accent: #EF4444;
    --color-accent-hover: #F87171;
    --color-accent-light: rgba(239,68,68,0.15);

    --color-bg: #0D1117;
    --color-bg-alt: #161B22;
    --color-surface: #1C2128;
    --color-surface-hover: #262C36;
    --color-surface-active: #2D333B;

    --color-text: #E6EDF3;
    --color-text-secondary: #8B949E;
    --color-text-muted: #6E7681;
    --color-text-inverse: #0D1117;

    --color-border: #30363D;
    --color-border-light: #21262D;
    --color-divider: #30363D;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.25);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.3);
    --shadow-card: 0 2px 8px rgba(0,0,0,0.2);
    --shadow-card-hover: 0 8px 24px rgba(0,0,0,0.35);
}