.hero{
        background-image: url('../img/banner.jpg');
        background-size: cover;
        background-position: center;

        min-height: 100vh;

        display: flex;
        justify-content: center;
        align-items: center;
    }

    .hero-overlay{
        text-align: center;
        color: white;
        padding: 20px;
    }


    .tarjeta-estudiante{
        max-width: 450px;
        margin: auto;
        background: rgba(0,0,0,0.55);
        backdrop-filter: blur(5px);
        border: 1px solid rgba(255,255,255,0.15);
        border-radius: 15px;
        color: white;
    }

    .tarjeta-estudiante h4,
    .tarjeta-estudiante p{
        color: white;
    }

    body{
        background: linear-gradient(
            to bottom,
            #04152d 0%,
            #0a2342 35%,
            #102d56 70%,
            #163d73 100%
        );

        min-height: 100vh;
        padding-top: 70px;
    }

    .introduccion{
        background: rgba(255,255,255,0.90);
        border-radius: 20px;
        padding: 40px;
        box-shadow: 0 0 20px rgba(0,0,0,0.15);
    }

    .introduccion h2{
        color: #0d3b66;
    }

    .boton-explorar{
        padding: 12px 30px;
        border-radius: 30px;
        font-weight: bold;
        transition: 0.3s;
    }

    .boton-explorar:hover{
        transform: scale(1.05);
    }

    .titulo-pagina{
        color: white;
        font-size: 3rem;
        font-weight: bold;
        text-shadow: 2px 2px 10px rgba(0,0,0,0.7);
    }

    .card{
        margin: auto;
        border: none;
        border-radius: 15px;
        transition: 0.3s;
    }

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

    .footer{
        background-color: rgba(0,0,0,0.35);
        color: white;
        text-align: center;
        padding: 25px 10px;
        margin-top: 50px;
        border-top: 1px solid rgba(255,255,255,0.15);
    }

    .footer p{
        margin: 5px 0;
    }

    .footer-titulo{
        font-size: 1.2rem;
        font-weight: bold;
    }

    .card img:not(.contador-img){
    height: 180px;
    object-fit: cover;
    width: 100%;
    border-radius: 12px;
    }

    .navbar-personalizada{
    background: rgba(3, 12, 24, 0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    box-shadow: 0 2px 15px rgba(0,0,0,0.3);
    }

    .navbar-brand{
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: 1px;

    color: white !important;
    }

    .navbar-nav .nav-link{
        color: rgba(255,255,255,0.85) !important;
        font-weight: 500;
        transition: 0.3s;
    }

    .navbar-nav .nav-link:hover{
    color: white !important;
    transform: translateY(-2px);
    }

    .navbar .nav-link.active{
    color: white !important;
    font-weight: bold;
    border-bottom: 3px solid #4da3ff;
    padding-bottom: 5px;
    }

    .video-container iframe{
        width: 100%;
        height: 450px;
        border: none;
        border-radius: 12px;
    }

    .contador-visitas{
        display: flex;
        justify-content: center;
        margin-top: 10px;
    }

    .contador-img{
        width: 100px !important;
        max-width: 100px !important;
        height: auto !important;
        border-radius: 0 !important;
    }