/* === INDEX.CSS (CÓDIGO COMPLETO FINAL) === */

/* --- Contenedor Principal --- */
.main-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 40px 20px;
    background-color: #122C4F;
    background-image: linear-gradient(to top, #1760be, #0f5fe0, #1656ce, #115df7, #156cb4);
    background-attachment: fixed;
}

/* --- Encabezado de Bienvenida --- */
.welcome-header {
    text-align: center;
    margin-bottom: 60px;
    color: #FBF9E4;
    animation: fadeInDown 1s ease-out;
}

.welcome-header .logo {
    width: 100px;
    height: 100px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    padding: 10px;
}

.welcome-header h1 {
    font-size: 2.5rem; /* Tamaño de fuente base para móviles. */
    font-weight: 800;
}

.welcome-header p {
    font-size: 1.2rem;
    max-width: 600px;
    opacity: 0.8;
}

/* --- Grilla del Portal --- */
.portal-grid {
    display: grid;
    /* Columnas que se adaptan automáticamente al espacio disponible. */
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    width: 100%;
    max-width: 1200px;
}

/* --- Tarjetas del Portal con Efecto Vidrio --- */
.portal-card {
    padding: 30px;
    display: flex;
    align-items: center;
    text-decoration: none;
    color: #FBF9E4;
    border-radius: 20px;
    transition: all 0.3s ease;
    animation: fadeInUp 0.5s ease-out forwards;
    opacity: 0;
    /* Efecto de vidrio. */
    background: rgba(251, 249, 228, 0.05);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid rgba(251, 249, 228, 0.2);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

.portal-card:hover {
    background: rgba(251, 249, 228, 0.15);
    transform: translateY(-10px) scale(1.02);
}

.card-icon {
    font-size: 2rem;
    margin-right: 25px;
    color: #FBF9E4;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(18, 44, 79, 0.5); /* Paleta: Midnight semi-transparente */
    border-radius: 50%;
    flex-shrink: 0;
}

.card-content h2 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.card-content p {
    font-size: 1rem;
    opacity: 0.7;
    line-height: 1.5;
}

.card-arrow {
    margin-left: auto;
    font-size: 1.5rem;
    opacity: 0.5;
    transition: all 0.3s ease;
}

.portal-card:hover .card-arrow {
    opacity: 1;
    transform: translateX(5px);
    color: #FBF9E4;
}

/* --- Animaciones --- */
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- Media Queries para Responsividad --- */
/* Para pantallas de escritorio (a partir de 768px). */
@media (min-width: 768px) {
    .welcome-header h1 {
        font-size: 3.5rem; /* Aumenta el tamaño del título en pantallas más grandes. */
    }
}