h1.ds {
    color: #333;
    text-align: center;
    margin-bottom: 40px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.card {
    background-color: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.15);
}

.card-image {
    height: 200px;
    background-size: cover;
    background-position: center;
}

.card-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.content-top {
    flex-grow: 1;
}

.category-label {
    display: inline-block;
    background-color: #e9f5ff;
    color: #0066cc;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 12px;
}

.card h2.ds {
    font-size: 20px;
    margin-bottom: 2px;
    color: #222;
}

.card p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 20px;
    font-size: 14px;
}

.pdf-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: #0066cc;
    font-weight: 500;
    transition: color 0.2s;
    margin-top: auto;
}

.pdf-link:hover {
    color: #004499;
}

.pdf-icon {
    width: 24px;
    height: 24px;
    margin-right: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f2f7ff;
    border-radius: 50%;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .cards-grid {
        grid-template-columns: 1fr;
    }
}