:root {
            --primary-color: #334D6C;
            --secondary-color: #2c3e50;
            --accent-color: #F97316;
            --success-color: #28a745;
            --warning-color: #ffc107;
            --danger-color: #dc3545;
            --light-bg: #f8f9fa;
            --card-bg: #ffffff;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: var(--light-bg);
            color: #333;
            line-height: 1.6;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* Header Section */
        .passerelles-hero {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            color: white;
            padding: 140px 0 50px;
            text-align: center;
        }
        
        .hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            margin-bottom: 20px;
        }
        
        .hero-subtitle {
            font-size: 1.3rem;
            opacity: 0.9;
            max-width: 800px;
            margin: 0 auto;
        }
        
        /* Introduction Section */
        .intro-section {
            padding: 60px 0;
            background: var(--card-bg);
        }
        
        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 30px;
            text-align: center;
            position: relative;
        }
        
        .section-title::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--accent-color);
            border-radius: 2px;
        }
        
        .intro-content {
            max-width: 900px;
            margin: 0 auto;
            font-size: 1.1rem;
            text-align: center;
            color: #5a5a5c;
            line-height: 1.8;
        }
        
        /* Passerelles Grid */
        .passerelles-section {
            padding: 60px 0;
            background: var(--light-bg);
        }
        
        .passerelles-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 30px;
            max-width: 1200px;
            margin: 0 auto;
        }
        
        /* Passerelle Card */
        .passerelle-card {
            background: var(--card-bg);
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 8px 25px rgba(0,0,0,0.08);
            transition: all 0.3s ease;
            height: 100%;
        }
        
        .passerelle-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0,0,0,0.12);
        }
        
        .passerelle-header {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            color: white;
            padding: 25px;
            text-align: center;
            position: relative;
        }
        
        .passerelle-level {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        
        .passerelle-requirement {
            font-size: 1rem;
            opacity: 0.9;
        }
        
        .passerelle-body {
            padding: 25px;
        }
        
        .passerelle-description {
            color: #5a5a5c;
            margin-bottom: 20px;
            text-align: left;
        }
        
        .volets-list {
            list-style: none;
            margin-top: 20px;
        }
        
        .volet-item {
            padding: 10px 0;
            border-bottom: 1px solid #eee;
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }
        
        .volet-item:last-child {
            border-bottom: none;
        }
        
        .volet-icon {
            width: 6px;
            height: 6px;
            background: var(--accent-color);
            border-radius: 50%;
            margin-top: 8px;
            flex-shrink: 0;
        }
        
        .volet-name {
            color: var(--secondary-color);
            font-weight: 500;
        }
        
        /* Preinscription Section */
        .preinscription-section {
            padding: 60px 0;
            background: var(--card-bg);
            text-align: center;
        }
        
        .preinscription-card {
            background: linear-gradient(135deg, var(--success-color) 0%, #218838 100%);
            color: white;
            padding: 40px;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(40, 167, 69, 0.3);
            max-width: 600px;
            margin: 0 auto;
        }
        
        .preinscription-title {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 15px;
        }
        
        .preinscription-text {
            font-size: 1.1rem;
            margin-bottom: 25px;
            opacity: 0.9;
        }
        
        .preinscription-btn {
            display: inline-block;
            background: white;
            color: var(--success-color);
            padding: 14px 35px;
            text-decoration: none;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(255,255,255,0.2);
        }
        
        .preinscription-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(255,255,255,0.3);
            color: var(--success-color);
            text-decoration: none;
        }
        
        /* Info Section */
        .info-section {
            padding: 60px 0;
            background: var(--light-bg);
        }
        
        .info-card {
            background: var(--card-bg);
            border-radius: 15px;
            padding: 30px;
            box-shadow: 0 8px 25px rgba(0,0,0,0.08);
            border-left: 5px solid var(--warning-color);
            max-width: 900px;
            margin: 0 auto;
        }
        
        .info-title {
            color: var(--secondary-color);
            font-size: 1.5rem;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .info-title i {
            color: var(--warning-color);
        }
        
        .info-text {
            color: #5a5a5c;
            line-height: 1.7;
            text-align: left;
        }
        
        /* Responsive */
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.2rem;
            }
            
            .section-title {
                font-size: 1.8rem;
            }
            
            .passerelles-grid {
                grid-template-columns: 1fr;
            }
            
            .passerelle-header,
            .passerelle-body {
                padding: 20px;
            }
            
            .preinscription-card {
                padding: 30px 20px;
            }
            
            .preinscription-title {
                font-size: 1.5rem;
            }
        }
        
        @media (max-width: 480px) {
            .hero-title {
                font-size: 1.8rem;
            }
            
            .hero-subtitle {
                font-size: 1.1rem;
            }
            
            .section-title {
                font-size: 1.5rem;
            }
        }