:root {
            --primary-color: #26649d;
            --green-dark: #26649d;
            --green-medium: #26649d;
            --green-light: #a8d5ba;
            --green-lighter: #d4edda;
        }

        .bba-program-structure {
            padding: 80px 0;
            background-color: #e9e9e9;
        }

        .bba-program-structure .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .bba-program-structure .section-title {
            color: #173457;
            font-weight: 700;
           text-transform: math-auto;
            margin-bottom: 0.5rem;
        }

        .bba-program-structure .section-subtitle {
            color: #484949;
          
        }

        .year-section {
            margin-bottom: 40px;
        }

        .year-header {
            background: linear-gradient(135deg, var(--green-dark), var(--green-medium));
            color: white;
            padding: 15px 25px;
            border-radius: 8px 8px 0 0;
            font-weight: 700;
           
            text-align: center;
            box-shadow: 0 4px 15px rgba(30, 86, 49, 0.3);
        }

        .semesters-row {
            display: flex;
            flex-wrap: wrap;
            gap: 0;
        }

        .semester-column {
            flex: 1;
            min-width: 300px;
        }

        .semester-card {
            background: white;
            border: 2px solid #e9ecef;
            padding: 0;
            height: 100%;
            transition: all 0.3s ease;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }

        .semester-card:hover {
            box-shadow: 0 8px 25px rgba(30, 86, 49, 0.15);
            transform: translateY(-2px);
        }

        .semester-title {
            background: var(--green-medium);
            color: white;
            padding: 12px 20px;
            font-weight: 700;
          
            text-align: center;
            letter-spacing: 1px;
        }

        .semester-body {
            padding: 20px;
        }

        .course-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .course-list li {
            background: var(--green-lighter);
            padding: 10px 15px;
            margin-bottom: 8px;
            border-radius: 5px;
            color: #2d3748;
            
            transition: all 0.2s ease;
            border-left: 3px solid var(--green-medium);
        }

        .course-list li:hover {
            background: var(--green-light);
            transform: translateX(5px);
        }

        /* Special styling for Year 3 & 4 structure */
        .elective-header {
            background: var(--green-dark);
            color: white;
            padding: 10px 15px;
            font-weight: 600;
            
            margin: 15px 0 10px 0;
            border-radius: 5px;
            display: flex;
            align-items: center;
        }

        .elective-header::before {
            content: '►';
            margin-right: 8px;
            font-size: 0.8rem;
        }

        .elective-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
            margin-bottom: 15px;
        }

        .elective-item {
            background: #f8f9fa;
            padding: 8px 12px;
            border-radius: 5px;
            
            color: #2d3748;
            border-left: 3px solid var(--green-medium);
            transition: all 0.2s ease;
        }

        .elective-item:hover {
            background: var(--green-lighter);
            transform: translateX(3px);
        }

        .elective-label {
            font-weight: 700;
            color: var(--green-dark);
           
            margin-bottom: 5px;
            display: block;
        }

        @media (min-width: 992px) {
            .year-section .semesters-row {
                display: flex;
            }
            
            .year-section .semester-column {
                display: flex;
                flex-direction: column;
            }
        }

        @media (max-width: 991px) {
            .bba-program-structure {
                padding: 50px 0;
            }

            .bba-program-structure .section-title {
                font-size: 2rem;
            }

            .semester-column {
                min-width: 100%;
                margin-bottom: 20px;
            }

            .elective-grid {
                grid-template-columns: 1fr;
            }

            .year-header {
                font-size: 1.2rem;
                padding: 12px 20px;
            }
        }