.course-card {
    transition: transform 0.2s;
    height: 100%;
}
.course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 8px rgba(255, 0, 0, 0.1);
}
.course-image {
    height: 200px;
    object-fit: cover;
}
.author-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(0,0,0,0.7);
    color: white;
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 0.8rem;
}
.language-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background: rgba(0,0,0,0.7);
    color: white;
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 0.8rem;
}
.karma-badge {
    background: linear-gradient(45deg, #ff6b6b, #ee5a24);
    color: white;
}
.filter-section {
    background-color: #f8f9fa00;
    border-radius: 5px;
    padding: 20px;
    margin-bottom: 20px;
}

.search-form {
    display: flex;
    gap: 15px;
    align-items: flex-end;
}

.search-input-wrapper {
    flex: 1;
}

.search-button-wrapper {
    flex-shrink: 0;
}

.search-input {
    border-radius: 8px;
    border: 2px solid #e9ecef;
    transition: all 0.3s ease;
}

.search-input:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}