/* ================================================
   VARIABLES CSS - Randonnée Céretane
   ================================================ */

:root {
    /* Couleurs principales */
    --color-primary: #2c5f2d;
    --color-primary-dark: #1e4620;
    --color-secondary: #667eea;
    --color-secondary-dark: #764ba2;
    
    /* Couleurs drapeau catalan */
    --color-catalan-yellow: #FCDD09;
    --color-catalan-red: #DA121A;
    
    /* Couleurs WordPress */
    --color-wp-blue: #2271b1;
    --color-wp-blue-dark: #1a5a8a;
    
    /* Badges difficulté */
    --color-facile: #4CAF50;
    --color-moyen: #FF9800;
    --color-difficile: #F44336;
    --color-expert: #9c27b0;
    
    /* Couleurs système */
    --color-success: #4CAF50;
    --color-success-light: #45a049;
    --color-error: #F44336;
    --color-warning: #FF9800;
    
    /* Nuances de gris */
    --color-text: #333;
    --color-text-light: #555;
    --color-text-muted: #666;
    --color-border: #ddd;
    --color-border-light: #e0e0e0;
    --color-border-lighter: #eee;
    --color-bg-light: #f7f7f7;
    --color-bg-lighter: #f8f9fa;
    --color-bg-lightest: #f9f9f9;
    --color-white: white;
    
    /* Gradients */
    --gradient-purple: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-success: linear-gradient(135deg, #4CAF50 0%, #45a049 100%);
    --gradient-image-fallback: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-banner: linear-gradient(135deg, #f5f7fa 0%, #e0e5ec 100%);
    
    /* Espacements */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.8rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-round: 20px;
    --radius-full: 25px;
    
    /* Ombres */
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.15);
    --shadow-lg: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 10px 30px rgba(0,0,0,0.15);
    
    /* Transitions */
    --transition-fast: 0.3s;
    --transition-medium: 0.3s ease;

    /* Z-Index - Échelle standardisée */
    --z-dropdown: 100;       /* Menus déroulants */
    --z-sticky: 200;         /* Éléments sticky (header) */
    --z-overlay: 300;        /* Overlays, backdrops */
    --z-modal: 400;          /* Modales, popups */
    --z-popover: 500;        /* Tooltips, popovers */
    --z-toast: 600;          /* Notifications toast */
    --z-lightbox: 9000;      /* Lightbox photos */
    --z-loading: 9999;       /* Loaders, spinners */

    /*
     * Breakpoints (reference only — CSS variables cannot be used in @media queries)
     * Actual values used in the codebase:
     *   374px  — very small phones
     *   480px  — small phones
     *   600px  — large phones (WordPress admin breakpoint)
     *   768px  — tablets (primary breakpoint, 35+ occurrences)
     *   1024px — small desktop
     *   1200px — large desktop
     */
    --breakpoint-sm: 480px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1200px;
}