h1 {
    text-align: center;
    text-decoration: underline;
    text-decoration-color: #252525;
    text-underline-offset: 6px;
    margin-bottom: 30px;
}

body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
}

.body-nubes {
    background-image: url("../Imagenes/nubes fondo pantalla.jpg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    min-height: 100vh;
}

.body-estrellas {
    background-image: url("../Imagenes/estrellas fondo pantalla.jpg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    min-height: 100vh;
}

.body-arco-iris {
    background-image: url("../Imagenes/arco iris fonod pantalla .jpg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    min-height: 100vh;
}

nav {
    text-align: center;
}

.imagen-centro {
    display: block;
    margin: 40px auto;
    border-radius: 30px;
    max-width: 100%;
    width: 450px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.presentacion {
    text-align: center;
    background-color: rgba(255, 255, 255, 0.75);
    padding: 20px;
    border-radius: 20px;
    max-width: 800px;
    margin: 0 auto 40px auto;
}

.aulas {
    margin-top: 40px;
}

.tarjeta-aula {
    border: none;
    border-radius: 20px;
    background-color: rgba(255, 255, 255, 0.88);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}

.tarjeta-aula .card-body {
    padding: 25px;
}

.tarjeta-aula h3 {
    margin-bottom: 15px;
}

.tarjeta-aula p {
    margin-bottom: 20px;
}

img.img-fluid {
    height: 220px;
    object-fit: cover;
}

video {
    max-height: 280px;
    object-fit: cover;
}

a {
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}