:root {
    --verde-fuerte: #367b3c;
    --verde-suave: #46a049;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: linear-gradient(135deg, var(--verde-fuerte), var(--verde-suave));
    color: white;
}

.header {
    padding: 20px;
    text-align: center;
    font-size: 24px;
    font-weight: bold;
    background: rgba(0,0,0,0.2);
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    padding: 20px;
}

.card {
    background: white;
    color: #333;
    padding: 25px;
    border-radius: 12px;
    text-align: center;
    cursor: pointer;
    transition: 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    background: #f5f5f5;
}

.card h3 {
    margin: 0;
    color: var(--verde-fuerte);
}

.card p {
    font-size: 14px;
}

/* RESPONSIVE */
@media (max-width: 600px) {
    .header {
        font-size: 20px;
    }
}