.teaching-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.course-card {
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.course-card h3 {
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.course-card a {
    color: var(--accent-color);
    text-decoration: none;
}

.course-card a:hover {
    text-decoration: underline;
}

.course-card p {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.4;
}