.imagen-tamaño{
    width: 720px;
    height: 480px;
    display: block;
    margin: 0 auto;
}

.contenido {
    font-size: 15px;
    color: #000000;
    text-align: justify;
}


.img-chakana {
    background-image: url("/images/fondo.jpg");
    background-repeat: repeat-y;
    background-position: center center;
    background-size: 1500px 1500px;
    
}   
.img-banner-centrado {
            text-align: center;
        }

.img-agricultura {
    background-image: url("/images/agriculturaIOT.jpg");
    background-repeat: no-repeat;
    background-position: center center;
    /* background-size: 1500px 1500px; */
}

/* Estilos de portada principal */
body {
    font-family: 'Poppins', sans-serif;
    background-color: #f5f7fa;
}

.btn-outline-success {
    margin: 0.25rem;
    border-radius: 30px;
    transition: 0.3s ease-in-out;
}

.btn-outline-success:hover {
    background-color: #198754;
    color: white;
}

.btn-outline-danger {
    margin: 0.25rem;
    border-radius: 30px;
    transition: 0.3s ease-in-out;
}

.btn-outline-danger:hover {
    background-color: #ff0000;
    color: white;
}

.card {
    border: none;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

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

footer {
    font-size: 0.9rem;
}


/* Estilos de investigacion */
.hero-banner {
    position: relative;
    height: 12vh;
    background: url('images/banner.png') center/cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
}
.hero-overlay {
    background-color: rgba(0, 0, 0, 0.7);
    padding: 0,8rem;
    text-align: center;
    color: white;
    width: 100%;
    height: 100%;
}