:root {
            --primary-color: #2c3e50;
            --secondary-color: #3498db;
            --accent-color: #e74c3c;
            --success-color: #2ecc71;
            --warning-color: #f39c12;
            --light-bg: #f8f9fa;
            --dark-text: #2c3e50;
            --light-text: #7f8c8d;
        }
        
      
        
        .header-section {
            background: linear-gradient(135deg, var(--primary-color) 0%, #1a098 100%);
            color: white;
            padding: 25px 0;
           
            position: relative;
            overflow: hidden;
        }
        
        .header-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMTAwJSIgaGVpZ2h0PSIxMDAlIiB2aWV3Qm94PSIwIDAgMTIwMCA2MDAiIHByZXNlcnZlQXNwZWN0UmF0aW89Im5vbmUiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyI+PGcgZmlsbD0ibm9uZSIgZmlsbC1ydWxlPSJldmVub2RkIj48cGF0aCBkPSJNMCw0MDBMNzUsNDAwQzE1MCw0MDAsMzAwLDQwMCw0NTAsMjY3QzYwMCwxMzMsNzUwLDEzMyw5MDAsMjAwQzEwNTAsMjY3LDEyMDAsNDY3LDEyMDAsNDY3SDBaIiBmaWxsPSIjMDAwIiBmaWxsLW9wYWNpdHk9IjAuMDMiLz48L2c+PC9zdmc+');
            opacity: 0.1;
        }
        
        .course-dropdown-container {
            background-color: white;
            border-radius: 12px;
            padding: 25px;
            box-shadow: 0 8px 25px rgba(0,0,0,0.08);
            margin-bottom: 35px;
            border-left: 6px solid var(--secondary-color);
            position: relative;
            z-index: 1;
        }
        
        .dropdown-title {
            color: var(--primary-color);
            margin-bottom: 20px;
            padding-bottom: 12px;
            border-bottom: 2px solid #eee;
            font-weight: 700;
            display: flex;
            align-items: center;
            font-size: 1.8rem;
        }
        
        .dropdown-title i {
            color: var(--secondary-color);
            margin-right: 12px;
            font-size: 1.6rem;
        }
        
      
        
        .estut-dropdown .col-md-4 {
            padding: 0 15px;
        }
        
        .estut-dropdown li {
            margin-bottom: 10px;
            transition: all 0.3s ease;
        }
        
        
        
        .estut-dropdown li a {
            color: var(--dark-text);
            text-decoration: none;
            display: flex;
            align-items: center;
            padding: 12px 15px;
            border-radius: 8px;
            transition: all 0.3s ease;
            font-weight: 500;
            border-left: 3px solid transparent;
            cursor: pointer;
        }
        .dropdownlis{width:100%;}
      
        
        .estut-dropdown li a i {
            width: 25px;
            text-align: center;
            margin-right: 10px;
            font-size: 1.1rem;
        }
        
        .course-detail-section {
            background-color: white;
            border-radius: 12px;
            padding: 30px;
            box-shadow: 0 8px 25px rgba(0,0,0,0.08);
            margin-bottom: 35px;
            border-top: 5px solid var(--accent-color);
            position: relative;
            z-index: 1;
        }
        
        .course-detail-placeholder {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            height: 300px;
            text-align: center;
            color: var(--light-text);
        }
        
        .course-detail-placeholder i {
            font-size: 5rem;
            color: #e0e0e0;
            margin-bottom: 20px;
        }
        
        /* Modal Custom Styling */
        .course-modal .modal-dialog {
            max-width: 900px;
            width: 90%;
            margin: 30px auto;
        }
        
        .course-modal .modal-content {
            border-radius: 15px;
            overflow: hidden;
            border: none;
        }
        
        .course-modal .modal-header {
            background: linear-gradient(135deg, var(--primary-color) 0%, #1a2530 100%);
            color: white;
            border-bottom: none;
            padding: 20px;
        }
        
        .course-modal .modal-title {
            display: flex;
            align-items: center;
           color: #fff;
            font-size: 20px;
        }
        
        .course-modal .modal-title i {
            margin-right: 15px;
            font-size: 1.8rem;
        }
        
        .course-modal .modal-body {
            padding: 30px;
            max-height: 70vh;
            overflow-y: auto;
        }
        
        .course-modal .close {
            opacity: 1;
            background: rgba(255,255,255,0.2);
            border: none;
            color: white;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
            float: none;
            margin: 0;
            position: absolute;
            right: 20px;
            top: 20px;
        }
        
        .course-modal .close:hover {
            background: rgba(255,255,255,0.3);
            transform: rotate(90deg);
            opacity: 1;
        }
        
        .course-modal .close span {
            display: none;
        }
        
        .course-modal .close:after {
            content: '✕';
            font-size: 1.5rem;
            line-height: 1;
        }
        
        .course-header {
            background: linear-gradient(135deg, #e3f2fd 0%, #f0f8ff 100%);
            padding: 20px;
            border-radius: 10px;
            margin-bottom: 25px;
            border-left: 5px solid var(--secondary-color);
        }
        
        .course-duration {
            display: inline-block;
            background-color: var(--secondary-color);
            color: white;
            padding: 6px 15px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-right: 10px;
        }
        
        .course-level {
            display: inline-block;
            background-color: var(--warning-color);
            color: white;
            padding: 6px 15px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
        }
        
        .highlight-box {
            background-color: #f0f8ff;
            border-left: 4px solid var(--secondary-color);
            padding: 18px;
            margin: 20px 0;
            border-radius: 0 8px 8px 0;
            box-shadow: 0 3px 10px rgba(0,0,0,0.03);
        }
        
        .liststyle {
            list-style-type: none;
            padding-left: 0;
        }
        
        .liststyle li {
            padding: 10px 0;
            padding-left: 35px;
            position: relative;
            border-bottom: 1px solid #f0f0f0;
        }
        
        .liststyle li:last-child {
            border-bottom: none;
        }
        
        .liststyle li:before {
            content: '\f058';
            font-family: 'Font Awesome 5 Free';
            font-weight: 900;
            color: var(--secondary-color);
            position: absolute;
            left: 0;
            top: 12px;
            font-size: 1.1rem;
        }
        
        .opportunity-badge {
            display: inline-block;
            background-color: #e8f4fc;
            color: var(--secondary-color);
            padding: 8px 18px;
            border-radius: 30px;
            margin: 5px;
            font-size: 0.9rem;
            border: 1px solid #d1e7f5;
            transition: all 0.3s ease;
        }
        
        .opportunity-badge:hover {
            background-color: var(--secondary-color);
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 5px 10px rgba(52, 152, 219, 0.2);
        }
        
        .course-info-card {
            background-color: white;
            border-radius: 10px;
            padding: 20px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin-bottom: 20px;
            height: 100%;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border-top: 3px solid var(--secondary-color);
        }
        
        .course-info-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 25px rgba(0,0,0,0.1);
        }
        
        .course-icon {
            font-size: 2.5rem;
            color: var(--secondary-color);
            margin-bottom: 15px;
        }
        
        .course-category {
            color: var(--light-text);
            font-size: 0.9rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 10px;
        }
        
        .btn-enroll {
            background: linear-gradient(135deg, var(--secondary-color) 0%, #2980b9 100%);
            color: white;
            padding: 7px 30px 20px;
            border-radius: 8px;
            border: none;
            font-weight: 600;
            transition: all 0.3s ease;
            box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
        }
        
        .btn-enroll:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(52, 152, 219, 0.4);
            color: white;
        }
        
        .btn-download {
            background-color: white;
            color: var(--secondary-color);
            padding: 12px 30px;
            border-radius: 8px;
            border: 2px solid var(--secondary-color);
            font-weight: 600;
            transition: all 0.3s ease;
			display: none;
        }
        
        .btn-download:hover {
            background-color: var(--secondary-color);
            color: white;
        }
        
        .modal-footer {
            border-top: 1px solid #eee;
            padding: 20px 30px;
        }
        
        .course-tag {
            display: inline-block;
            background-color: #f0f0f0;
            color: var(--dark-text);
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.8rem;
            margin-right: 5px;
            margin-bottom: 5px;
        }
     
        
        .course-card {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            height: 100%;
            margin-bottom: 25px;
        }
        
        .course-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        
        .course-card-header {
            background: linear-gradient(135deg, var(--secondary-color) 0%, #2980b9 100%);
            color: white;
            padding: 20px;
            text-align: center;
        }
        
        .course-card-header i {
            font-size: 2.5rem;
            margin-bottom: 10px;
        }
        
        .course-card-body {
            padding: 20px;
        }
        
        .course-card-title {
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 15px;
        }
        
        .course-card-desc {
            color: var(--light-text);
            font-size: 0.9rem;
            margin-bottom: 15px;
        }
        
        .course-card-footer {
            padding: 15px 20px;
            background-color: #f9f9f9;
            border-top: 1px solid #eee;
        }
        
        .btn-view-course {
            background-color: var(--secondary-color);
            color: white;
            border: none;
            padding: 8px 20px;
            border-radius: 5px;
            font-weight: 500;
            transition: all 0.3s ease;
            width: 100%;
        }
        
        .btn-view-course:hover {
            background-color: #2980b9;
            color: white;
        }
        
        .text-muted {
            color: #6c757d !important;
        }
        
        .lead {
            font-size: 1.25rem;
            font-weight: 300;
        }
        
        .mb-0 { margin-bottom: 0 !important; }
        .mb-1 { margin-bottom: 0.25rem !important; }
        .mb-2 { margin-bottom: 0.5rem !important; }
        .mb-3 { margin-bottom: 1rem !important; }
        .mb-4 { margin-bottom: 1.5rem !important; }
        .mb-5 { margin-bottom: 3rem !important; }
        
        .mt-0 { margin-top: 0 !important; }
        .mt-1 { margin-top: 0.25rem !important; }
        .mt-2 { margin-top: 0.5rem !important; }
        .mt-3 { margin-top: 1rem !important; }
        .mt-4 { margin-top: 1.5rem !important; }
        .mt-5 { margin-top: 3rem !important; }
        
        .py-5 { padding-top: 3rem !important; padding-bottom: 3rem !important; }
        
        .text-center { text-align: center !important; }
        .text-md-end { text-align: right !important; }
        
        @media (max-width: 768px) {
            .course-dropdown-container {
                padding: 15px;
            }
            
            .estut-dropdown .col-md-4 {
                margin-bottom: 15px;
            }
            
            .course-detail-section {
                padding: 20px;
            }
            
            .dropdown-title {
                font-size: 1.5rem;
            }
            
            .course-modal .modal-body {
                padding: 20px;
            }
            
            .text-md-end {
                text-align: center !important;
            }
        }