:root {
            --primary: #dc3545;
            --primary-light: #6c7ee3;
            --secondary: #6c757d;
            --light-bg: #f8f9fa;
            --dark-bg: #212529;
            --border-color: #e9ecef;
            --hover-bg: #ffe6f0;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: var(--light-bg);
            color: #333;
            line-height: 1.6;
        }
        
        
        .search-container {
            background: white;
            border-radius: 10px;
            padding: 1.25rem;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            margin-top: -25px;
            position: relative;
            z-index: 100;
        }
        
        .filter-buttons .btn {
            margin: 0.2rem;
            border-radius: 18px;
            padding: 0.5rem 1rem;
            font-size: 0.9rem;
            transition: all 0.3s ease;
        }
        
        .filter-buttons .btn.active {
            background-color: var(--primary);
            border-color: var(--primary);
            color: white;
        }
        
        .course-list {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            max-height: 70vh;
            overflow-y: auto;
        }
        
        .course-item {
            padding: 1.1rem 1.5rem;
            border-bottom: 1px solid var(--border-color);
            transition: all 0.2s ease;
            display: flex;
            align-items: center;
        }
        
        .course-item:last-child {
            border-bottom: none;
        }
        
        .course-item:hover {
            background-color: var(--hover-bg);
        }
        
        .course-level {
            padding: 0.3rem 0.8rem;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-right: 1rem;
            min-width: 80px;
            text-align: center;
        }
        
        .level-foundation {
            background-color: #e8f4fd;
            color: #0a58ca;
        }
        
        .level-diploma {
            background-color: #e7f6e9;
            color: #0a8a3c;
        }
        
        .level-bachelor {
            background-color: #fdf2e8;
            color: #fd7e14;
        }
        
        .level-masters {
            background-color: #f8e8fd;
            color: #8b2ac9;
        }
        
        .level-phd {
            background-color: #fde8e8;
            color: #dc3545;
        }
        
        .level-certificate {
            background-color: #fff4e6;
            color: #f76707;
        }
        
        .course-title {
            font-weight: 500;
            flex-grow: 1;
            margin: 0;
            font-size: 1.05rem;
        }
        
        .course-link {
            color: var(--primary);
            text-decoration: none;
            font-weight: 500;
            display: flex;
            align-items: center;
            white-space: nowrap;
        }
        
        .course-link:hover {
            color: var(--primary-light);
            text-decoration: underline;
        }
        
        .course-link i {
            margin-left: 0.5rem;
            font-size: 0.9rem;
        }
        
        .no-results {
            display: none;
            text-align: center;
            padding: 3rem;
            background: white;
            border-radius: 10px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
        }
        
        .course-count {
            font-size: 0.9rem;
            color: var(--secondary);
            margin-bottom: 1rem;
        }
        
        @media (max-width: 768px) {
            .course-item {
                flex-direction: column;
                align-items: flex-start;
            }
            
            .course-level {
                margin-bottom: 0.75rem;
            }
            
            .course-title {
                margin-bottom: 0.75rem;
                width: 100%;
            }
            
            .course-link {
                align-self: flex-end;
            }
            
            .filter-buttons .btn {
                margin: 0.1rem;
                padding: 0.4rem 0.8rem;
                font-size: 0.8rem;
            }
        }