a.col-lg-4.col-md-6 {
    text-decoration: none;
}

.lesson-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-radius: 16px;
}

.lesson-card:hover {
    box-shadow: 0 20px 40px rgba(0,0,0,0.15) !important;
}

.gradient-header {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.7) 0%, rgba(139, 92, 246, 0.7) 100%);
}

.card-overlay {
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.lesson-card:hover .card-overlay {
    opacity: 0.08;
}

.stretched-link::after {
    z-index: 1;
}