/* ===============================
   BASE ESTILOS
   ================================*/

body {
    font-family: 'Poppins', Arial, sans-serif;
    margin: 0;
    padding: 0;
    color: #333;
    background-color: #f9f9f9;
}

.contenedor {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===============================
   ENCABEZADO Y BANNER
   ================================*/

header {
    background-color: #004080; /* Azul fuerte de universidad */
    color: white;
    padding: 15px 0;
}

.logo-texto {
    font-size: 24px;
    font-weight: 700;
}

.menu-navegacion a {
    color: white;
    text-decoration: none;
    margin-left: 20px;
    transition: color 0.3s;
}

.menu-navegacion a:hover {
    color: #ffcc00; /* Amarillo/Dorado de realce */
}

.banner {
    background-color: #d9e2f3;
    padding: 0;
    text-align: center;
    position: relative;
}

.banner-contenido-universidad {
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
}

.imagen-banner {
    max-width: 100%;
    height: auto;
    max-height: 400px;
    object-fit: cover;
    display: block;
    margin: 0 auto;
    border-radius: 0 0 10px 10px;
}

.btn-info {
    position: absolute;
    top: 20px;
    right: 20px;
    background-color: #ffcc00;
    color: #004080;
    border: none;
    padding: 10px 25px;
    font-weight: 700;
    cursor: pointer;
    border-radius: 5px;
    z-index: 10;
    transition: background-color 0.3s;
    text-transform: uppercase;
}

.btn-info:hover {
    background-color: #e0b400;
}

/* ====================================
   TÍTULO PRINCIPAL
   ==================================== */

.oferta-academica {
    text-align: center;
    padding: 40px 0 20px;
    background-color: #ffffff;
}

.titulo-principal-biblioteca {
    font-size: 36px;
    color: #004080;
    margin: 0 0 10px;
    font-weight: 700;
}

.oferta-academica p {
    color: #666;
    margin-top: 0;
}

/* ====================================
   BLOQUES DE PROGRAMAS/LIBROS
   ==================================== */

.programas {
    background-color: #f9f9f9;
    padding: 20px 0 40px;
}

.container-menu {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 0 auto;
}

.programa-bloque {
    background-color: #ffffff;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    width: 300px;
    text-align: center;
    padding: 20px;
    margin: 20px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.programa-bloque:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
}

.programa-imagen {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 5px;
    margin-bottom: 15px;
}

.programa-bloque h3 {
    font-size: 22px;
    color: #004080;
    margin: 0 0 5px;
    font-weight: 600;
}

.programa-bloque p {
    font-size: 14px;
    color: #555;
    margin: 0 0 15px;
}

.info-biblioteca {
    font-size: 14px;
    margin-bottom: 15px;
    font-weight: 400;
    color: #333;
}

.etiqueta-disponibilidad {
    font-weight: 700;
    margin-right: 10px;
    color: green;
}

.etiqueta-disponibilidad.prestado {
    color: red;
}

.btn-solicitar {
    background-color: #004080;
    color: white;
    border: none;
    padding: 10px 15px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.btn-solicitar:hover {
    background-color: #0056b3;
}

/* ====================================
   SECCIÓN ACERCA (Estadísticas)
   ==================================== */

.seccion-acerca {
    background-color: #f9f9f9;
    padding-bottom: 60px;
    padding-top: 30px;
}

.stats-biblioteca-contenedor {
    background-color: #ffffff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    padding: 30px 20px;
    border-radius: 10px;
    text-align: center;
}

.titulo-acerca {
    font-size: 28px;
    color: #004080;
    margin-bottom: 30px;
    font-weight: 700;
}

.stats-container {
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 15px;
    min-width: 150px;
}

.stat-numero {
    font-size: 42px;
    font-weight: 700;
    color: #ffcc00;
    line-height: 1.2;
}

.stat-texto {
    font-size: 12px;
    font-weight: 600;
    color: #004080;
    margin-top: 5px;
    text-transform: uppercase;
}

/* ====================================
   RESPONSIVE
   ==================================== */

@media (max-width: 1024px) {
    .programa-bloque {
        width: 45%;
    }
}

@media (max-width: 768px) {
    .programa-bloque {
        width: 100%;
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
    }
    .contenedor {
        flex-direction: column;
        text-align: center;
    }
    .titulo-principal-biblioteca {
        font-size: 30px;
    }
    .stats-container {
        justify-content: center;
    }
    .stat-item {
        width: 45%;
    }
    .titulo-acerca {
        font-size: 24px;
    }
}