/* Estilos personalizados */
    .hero{background-image:url('../img/fondo2.jpg'); background-size:cover; background-position:center; min-height:60vh; position:relative; color:#fff;}
    .hero::after{content:'';position:absolute; inset:0;background:rgba(0,0,0,0.45);} 
    .hero-content{position:relative; z-index:2;}
    .card-img-top{height:180px; object-fit:cover;}
    .logo-placeholder{width:40px; height:40px; object-fit:cover;}