:root {
            --primary: #3498db;
            --secondary: #2c3e50;
            --success: #28a745;
            --light-bg: #f8f9fa;
        }
        
        body {
            font-family: 'Montserrat', sans-serif;
            background-color: var(--light-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            padding-bottom: 60px;
        }
        
        .main-container {
            flex: 1;
        }
        
        /* Header stylisé */
        .custom-header {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--primary) 100%);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        
        /* Cartes améliorées */
        .custom-card {
            border: none;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        
        .custom-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.15);
        }
        
        /* Boutons personnalisés */
        .btn-primary {
            background-color: var(--primary);
            border-color: var(--primary);
        }
        
        .btn-primary:hover {
            background-color: #2980b9;
            border-color: #2980b9;
        }
        
        /* Formulaire de connexion */
        .login-container {
            min-height: 500px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .login-card {
            width: 100%;
            max-width: 400px;
            padding: 2rem;
            background: white;
            border-radius: 10px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        }
        
        .code-input {
            width: 60px;
            text-align: center;
            font-size: 1.2rem;
            font-weight: 600;
            margin: 0 5px;
        }
        
        /* Navigation */
        .custom-nav {
            background-color: white;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            margin-bottom: 2rem;
        }
        
        /* Utilitaires */
        .minHeight500 {
            min-height: 500px;
        }
        
        .icon-box {
            width: 50px;
            height: 50px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-right: 15px;
            background-color: rgba(52, 152, 219, 0.1);
            color: var(--primary);
        }
        
        /* Footer */
        .custom-footer {
            background-color: var(--secondary);
            color: white;
            padding: 1.5rem 0;
            margin-top: auto;
        }
        
        .custom-modal {
            position: fixed;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            z-index: 1050;
            display: flex;
            flex-direction: column;
            background: white;
            border-radius: 8px;
            box-shadow: 0 5px 25px rgba(0,0,0,0.3);
            overflow: hidden;
        }
        
        
        .custom-modal .card {
            height: 100%;
            border: none;
            border-radius: 0;
        }
        
        .custom-modal .card-header {
            flex-shrink: 0;
            
            color: black;
            border-bottom: 1px solid #dee2e6;
            padding: 1rem 1.5rem;
        }
        
        .custom-modal .card-body {
            flex: 1;
            overflow-y: auto;
            padding: 1.5rem;
        }
        
        .custom-modal .card-footer {
            flex-shrink: 0;
            background-color: #f8f9fa;
            border-top: 1px solid #dee2e6;
            padding: 1rem 1.5rem;
            display: flex;
            justify-content: flex-end;
            gap: 10px;
        }
        
        .modal-backdrops {
            position: fixed;
            top: 0;
            left: 0;
            z-index: 1040;
            width: 100vw;
            height: 100vh;
            background-color: rgba(0,0,0,0.5);
        }
        
        /* Responsive */
        @media (max-width: 768px) {
            .custom-modal {
                width: 95%;
                height: 90vh;
            }
        }