.main-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-bottom: 50px;
}

/* Categorie kaarten */
.category-item {
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.06);
    padding: 30px 25px;
    text-align: center;
    transition: all 0.25s ease;
    border-top: 5px solid transparent;
}

.category-item h2 {
    font-size: 1.6rem;
    color: #153C54;
    margin-bottom: 10px;
}

.category-item p {
    color: #555;
    line-height: 1.5;
    font-size: 1.1rem;
}

/* Hover effects met kleuraccent per type */
a[href*="ambulance"] .category-item {
    border-top-color: #e53835;
}
a[href*="politie"] .category-item {
    border-top-color: #1e88e5;
}
a[href*="brandweer"] .category-item {
    border-top-color: #f57b00;
}

/* Hover interactie */
.category-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 18px rgba(0,0,0,0.08);
}

/* Link styling */
.main-grid a {
    margin-top: 4vh;
    text-decoration: none;
    color: inherit;
}

/* Scheidingslijn */
.main-container > hr {
    border: none;
    border-top: 2px solid #eee;
    margin: 60px 0 40px 0;
}

/* Responsiveness */
@media (max-width: 768px) {
    .main-container {
        padding: 25px 15px;
    }

    .category-item {
        padding: 20px;
    }

    .category-item h2 {
        font-size: 1.2rem;
    }

    .main-container > hr {
        margin: 10px 0;
    }
}