/* ========== SECCIÓN INTRODUCTORIA CON COLLAGE SUPERIOR ========== */
.edu-hero {
    padding-top: 7rem;
    padding-bottom: 1rem;
    background: #ffffff;
}
.edu-hero-grid {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}
.edu-hero-text {
    flex: 1 1 400px;
}
.edu-hero-collage {
    flex: 1 1 400px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: auto;
    gap: 0.8rem;
}
.edu-hero-collage img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 1rem;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}
.edu-hero-collage img:hover {
    transform: scale(1.03);
}
@media (max-width: 600px) {
    .edu-hero-collage {
        grid-template-columns: 1fr;
    }
    .edu-hero-collage img {
        height: 180px;
    }
}

/* ========== GALERÍA DE VISITAS (COLLAGE GRANDE) ========== */
.gallery-section {
    padding: 2rem 0 1rem 0;
    background: #fff;
}
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}
.gallery-grid img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 1rem;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s;
}
.gallery-grid img:hover {
    transform: scale(1.04);
    box-shadow: 0 12px 28px rgba(0,0,0,0.15);
}

/* ========== BLOQUE DE TEXTO "INSTITUCIONES EXPERTAS" ========== */
.expertise-text {
    max-width: 800px;
    margin: 2rem auto 0;
    text-align: center;
    font-size: 1.1rem;
    line-height: 1.8;
    color: #2c3e50;
}
.expertise-text strong {
    color: #1A4331;
}