.lessons-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    max-width: 900px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.lesson-card {
    position: relative;
    background: #1f2937;
    border-radius: 1rem;
    padding: 1.5rem;
    transition: transform 0.3s ease;
    overflow: hidden;
}

.adobe-icon {
    width: 40px;
    height: 40px;
    margin: 1rem 0;
    display: block;
}

.lesson-card::before {
    content: "";
    position: absolute;
    inset: 0;
    margin: auto;
    background: linear-gradient(90deg, #03a9f4, #f441a5);
    border-radius: 1rem;
    padding: 3px;
    z-index: -1;
    transition: filter 0.4s ease;
}

.lesson-card:hover {
    transform: translateY(-5px);
}

.lesson-card:hover::before {
    filter: blur(1.2em);
}

.lesson-card h3 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.lesson-card .page-range {
    color: #9ca3af;
    font-size: 0.9rem;
    margin-left: 0.5rem;
}

.adobe-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8em 1.2em;
    margin-top: 1rem;
    font-size: 1rem;
    font-weight: 600;
    color: white;
    background: linear-gradient(90deg, #03a9f4, #f441a5);
    border-radius: 0.5em;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: 2px 2px 3px rgba(0, 0, 0, 0.3);
}

.adobe-link:hover {
    transform: scale(1.02);
    box-shadow: 3px 3px 6px rgba(0, 0, 0, 0.4);
}

.adobe-link:active {
    transform: scale(0.98);
}

.adobe-link i {
    font-size: 1.2rem;
}

/* Dark theme enhancements */
.lesson-card {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
                0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.lesson-card:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
                0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .lessons-card-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 1.5rem;
        padding: 0 0.5rem;
    }

    .lesson-card {
        padding: 1.25rem;
    }

    .adobe-link {
        padding: 0.6em 1em;
        font-size: 0.95rem;
    }
}