/* ============================================
   DESIGN SYSTEM - Centralized CSS Variables
   Loaded before all other stylesheets.
   ============================================ */

:root {
    /* ---- Brand Colors ---- */
    --color-primary: #2C4B79;
    --color-primary-light: #3a5f93;
    --color-primary-dark: #203a61;
    --color-primary-darker: #1a3a5c;
    --color-secondary: #48CAE4;
    --color-secondary-dark: #00B4D8;
    --color-secondary-darker: #0096c7;
    --color-accent: #5A84C3;
    --color-accent-bg: #F0F4FA;
    
    /* ---- Neutral Colors ---- */
    --color-white: #ffffff;
    --color-bg-light: #f8f9fa;
    --color-bg-page: #f9fafc;
    --color-border: #e9ecef;
    --color-border-dark: #dee2e6;
    --color-border-light: #f0f0f0;

    /* ---- Text Colors ---- */
    --color-text: #333;
    --color-text-dark: #1a2f4e;
    --color-text-light: #666;
    --color-text-muted: #888;
    --color-text-grey: #6c757d;

    /* ---- Status Colors ---- */
    --color-success: #28a745;
    --color-success-alt: #27ae60;
    --color-success-light: #2ecc71;
    --color-danger: #dc3545;
    --color-danger-dark: #c0392b;
    --color-danger-alt: #e74c3c;
    --color-warning: #ffc107;
    --color-warning-alt: #f39c12;
    --color-info: #3498db;
    --color-purple: #9b59b6;

    /* ---- Gradients ---- */
    --gradient-primary: linear-gradient(135deg, #2C4B79 0%, #48CAE4 100%);
    --gradient-secondary: linear-gradient(135deg, #48CAE4, #00B4D8);
    --gradient-secondary-dark: linear-gradient(135deg, #00B4D8, #0096c7);
    --gradient-admin: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);

    /* ---- Shadows ---- */
    --shadow-xs: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 15px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);
    --shadow-card: 0 0.5rem 1rem rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.15);

    /* ---- Border Radius ---- */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-pill: 50px;
    --radius-circle: 50%;

    /* ---- Transitions ---- */
    --transition-fast: all 0.2s ease;
    --transition-base: all 0.3s ease;
    --transition-slow: all 0.4s ease;

    /* ---- Z-Index Scale ---- */
    --z-base: 1;
    --z-above: 2;
    --z-dropdown: 100;
    --z-sticky: 500;
    --z-navbar: 1000;
    --z-overlay: 1050;
    --z-modal: 1080;
    --z-toast: 9999;

    /* ---- Font Family ---- */
    --font-main: 'Tajawal', sans-serif;
    --font-admin: 'Cairo', sans-serif;

    /* ---- Spacing ---- */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;

    /* ---- Font Sizes ---- */
    --text-xs: 0.75rem;
    --text-sm: 0.85rem;
    --text-base: 0.95rem;
    --text-md: 1.1rem;
    --text-lg: 1.2rem;
    --text-xl: 1.5rem;
    --text-2xl: 2rem;
    --text-3xl: 2.5rem;
}