body {
    background-image: url('assets/img/fondo_ladrillos.jpg');
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed;

    color: white;
    font-family: Arial, sans-serif;
    margin: 0;
}
    

/* Contenedor principal centrado */
.certificados {
    max-width: 900px;
    margin: 0 auto;          /* 👈 centra todo el bloque */
    text-align: center;
}

/* Título principal a la izquierda */
.titulo-principal {
    color: #c2ffb1;
    margin: 40px auto;
    max-width: 900px;
    text-align: left;
}

/* Cada certificado */
.cert-item {
    margin-bottom: 60px;
}

/* Imágenes */
.cert-img {
    width: 500px;
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    transition: transform 0.3s ease;
}

.cert-img:hover {
    transform: scale(1.03);
}