:root {
            --primary-color: #334D6C;
            --secondary-color: #2c3e50;
            --accent-color: #F97316;
            --light-bg: #f8f9fa;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: var(--light-bg);
            color: #333;
            line-height: 1.6;
        }
        
        /* Hero Section */
        .filiere-detail-hero {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            color: white;
            padding: 120px 0 60px;
        }
        
        .filiere-detail-title {
            font-size: 2.5rem;
            font-weight: 800;
            margin-bottom: 15px;
        }
        
        .filiere-info {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            margin-top: 30px;
        }
        
        .info-item {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .info-item i {
            color: var(--accent-color);
            font-size: 1.2rem;
        }
        
        /* Content Section */
        .filiere-detail-content {
            padding: 60px 0;
        }
        
        .content-card {
            background: white;
            border-radius: 20px;
            padding: 40px;
            box-shadow: 0 15px 40px rgba(0,0,0,0.1);
            margin-bottom: 40px;
        }
        
        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 15px;
        }
        
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 3px;
            background: var(--accent-color);
            border-radius: 2px;
        }
        
        /* Objectives & Debouches */
        .objectives-list, .debouches-list {
            list-style: none;
            padding: 0;
        }
        
        .objectives-list li, .debouches-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            margin-bottom: 15px;
            padding: 12px 15px;
            background: #f8f9fa;
            border-radius: 8px;
            border-left: 3px solid var(--success-color);
        }
        
        .objectives-list li i, .debouches-list li i {
            color: var(--success-color);
            margin-top: 2px;
            flex-shrink: 0;
        }
        
        /* Architecture Table */
        .architecture-table {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            margin-bottom: 30px;
        }
        
        .table-header {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            color: white;
            padding: 20px;
        }
        
        .table-title {
            font-size: 1.5rem;
            font-weight: 700;
            margin: 0;
        }
        
        .architecture-table .table {
            margin: 0;
        }
        
        .architecture-table .table th {
            background: #f8f9fa;
            border-bottom: 2px solid var(--primary-color);
            font-weight: 700;
            color: var(--primary-color);
            padding: 15px;
            text-align: center;
        }
        
        .architecture-table .table td {
            padding: 12px 15px;
            vertical-align: middle;
            border-color: #f0f0f0;
            text-align: center;
        }
        
        .semestre-header {
            background: var(--accent-color) !important;
            color: white !important;
            font-weight: 700 !important;
        }
        
        .module-cell {
            background: #f8f9fa;
            font-weight: 500;
            color: var(--primary-color);
        }
        
        /* Back Button */
        .back-btn {
            background: transparent;
            border: 2px solid var(--primary-color);
            color: var(--primary-color);
            padding: 12px 30px;
            border-radius: 10px;
            font-weight: 600;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all 0.3s ease;
            margin-bottom: 30px;
        }
        
        .back-btn:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-2px);
        }
        
        /* Responsive */
        @media (max-width: 768px) {
            .filiere-detail-title {
                font-size: 2rem;
            }
            
            .content-card {
                padding: 25px;
            }
            
            .architecture-table {
                overflow-x: auto;
            }
        }