/* Variables de color */
:root {
    --azul-francia-oscuro: #001570;
    --azul-francia-medio: #002395;
    --azul-francia-claro: #4a6fa5;
    --blanco: #ffffff;
    --gris-claro: #f8f9fa;
    --gris-medio: #e9ecef;
    --texto-oscuro: #333333;
    --texto-claro: #666666;
}

/* Reset y estilos base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Lato', sans-serif;
    background-color: var(--gris-claro);
    color: var(--texto-oscuro);
    line-height: 1.6;
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

/* Layout principal con anuncios */
.main-content {
    width: 100%;
    display: flex;
    flex-direction: column;
    min-width: 0;
    padding: 0;
}

.ad-space {
    width: 200px;
    flex-shrink: 0;
    position: fixed;
    top: 80px;
    height: calc(100vh - 100px);
    background-color: var(--gris-claro);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 3px solid var(--azul-francia-oscuro);
    border-radius: 8px;
    margin: 0 15px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    z-index: 50;
    overflow: hidden;
}

.ad-left {
    left: 15px;
}

.ad-right {
    right: 15px;
}



.ad-container {
    width: calc(100% - 20px);
    height: calc(100% - 20px);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-radius: 6px;
    background-color: var(--gris-claro);
}

.ad-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.ad-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.content-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Tipografía elegante estilo universidad */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', serif;
    letter-spacing: 0.5px;
}

h1 {
    font-weight: 700;
}

h2 {
    font-weight: 600;
}

h3 {
    font-weight: 600;
}



/* Barra de navegación */
.navbar {
    background-color: var(--azul-francia-oscuro);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 2rem;
    width: 100%;
}

.nav-logo h1 {
    font-family: 'Playfair Display', serif;
    color: var(--blanco);
    font-size: 1.5rem;
    font-weight: 600;
}

.logo-image {
    height: 80px;
    width: auto;
    max-width: 300px;
    object-fit: contain;
    border-radius: 4px;
    transition: transform 0.3s ease;
}

.logo-image:hover {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--blanco);
    text-decoration: none;
    font-weight: 400;
    transition: color 0.3s ease;
    font-size: 1rem;
}

.nav-link:hover {
    color: var(--azul-francia-claro);
}

.nav-auth {
    display: flex;
    gap: 1rem;
}

.btn-login, .btn-register {
    padding: 0.75rem 2rem;
    border: 2px solid var(--blanco);
    background: transparent;
    color: var(--blanco);
    font-family: 'Lato', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 6px;
}

.btn-login:hover, .btn-register:hover {
    background-color: var(--blanco);
    color: var(--azul-francia-oscuro);
}

.btn-register {
    background-color: var(--blanco);
    color: var(--azul-francia-oscuro);
}

.btn-register:hover {
    background-color: var(--gris-claro);
}

.user-welcome {
    color: var(--blanco);
    font-weight: 600;
    margin-right: 1rem;
}

.btn-logout {
    padding: 0.5rem 1.5rem;
    border: 2px solid var(--blanco);
    background: transparent;
    color: var(--blanco);
    font-family: 'Lato', sans-serif;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 4px;
}

.btn-logout:hover {
    background-color: var(--blanco);
    color: var(--azul-francia-oscuro);
}

/* Sección principal con artículo */
.hero-section {
    background: linear-gradient(135deg, var(--azul-francia-oscuro) 0%, var(--azul-francia-medio) 100%);
    padding: 4rem 0;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.main-article {
    background-color: var(--blanco);
    padding: 3rem;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    max-width: 900px;
    margin: 0 auto;
}

.main-article h2 {
    font-family: 'Playfair Display', serif;
    color: var(--azul-francia-oscuro);
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.article-content {
    font-size: 1.1rem;
    line-height: 1.8;
}

.article-content p {
    margin-bottom: 1.5rem;
    text-align: justify;
}

.article-content h3 {
    font-family: 'Playfair Display', serif;
    color: var(--azul-francia-oscuro);
    font-size: 1.8rem;
    margin: 2rem 0 1rem;
}

.article-content ul, .article-content ol {
    margin: 1rem 0 1.5rem 2rem;
}

.article-content li {
    margin-bottom: 0.5rem;
}

/* Secciones generales */
.section {
    padding: 4rem 0;
    background-color: var(--blanco);
}

.section:nth-child(even) {
    background-color: var(--gris-claro);
}

.section-title {
    font-family: 'Playfair Display', serif;
    color: var(--azul-francia-oscuro);
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
}

.section-description {
    text-align: center;
    color: var(--texto-claro);
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

/* Búsqueda de universidades */
.search-container {
    background-color: var(--blanco);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.filters {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filter-group {
    flex: 1;
    min-width: 200px;
}

.filter-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--azul-francia-oscuro);
}

.filter-select {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--gris-medio);
    border-radius: 6px;
    font-family: 'Lato', sans-serif;
    font-size: 1.1rem;
    transition: border-color 0.3s ease;
}

.filter-select:focus {
    outline: none;
    border-color: var(--azul-francia-oscuro);
}

.btn-search {
    padding: 1rem 2.5rem;
    background-color: var(--azul-francia-oscuro);
    color: var(--blanco);
    border: none;
    border-radius: 6px;
    font-family: 'Lato', sans-serif;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.btn-search:hover {
    background-color: var(--azul-francia-medio);
}

.results-container {
    margin-top: 2rem;
}

.university-card {
    background-color: var(--gris-claro);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    border-left: 4px solid var(--azul-francia-oscuro);
}

.university-card h3 {
    font-family: 'Playfair Display', serif;
    color: var(--azul-francia-oscuro);
    margin-bottom: 0.5rem;
}

.university-card p {
    color: var(--texto-claro);
    margin-bottom: 1rem;
}

.university-card .badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: var(--azul-francia-claro);
    color: var(--blanco);
    border-radius: 12px;
    font-size: 0.875rem;
    margin-right: 0.5rem;
}

.btn-official {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--azul-francia-oscuro);
    color: var(--blanco);
    text-decoration: none;
    border-radius: 6px;
    font-size: 1rem;
    transition: background-color 0.3s ease;
}

.btn-official:hover {
    background-color: var(--azul-francia-medio);
}

.no-results {
    text-align: center;
    color: var(--texto-claro);
    font-size: 1.1rem;
    padding: 2rem;
    background-color: var(--gris-claro);
    border-radius: 8px;
}

/* Cursos gratis */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.course-card {
    background-color: var(--blanco);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.course-card h3 {
    font-family: 'Playfair Display', serif;
    color: var(--azul-francia-oscuro);
    margin-bottom: 1rem;
}

.course-card p {
    color: var(--texto-claro);
    margin-bottom: 1.5rem;
}

.btn-download {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: var(--azul-francia-oscuro);
    color: var(--blanco);
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: background-color 0.3s ease;
}

.btn-download:hover {
    background-color: var(--azul-francia-medio);
}

/* Foro de ayuda */
.forum-filters {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.btn-primary {
    padding: 1rem 2.5rem;
    background-color: var(--azul-francia-oscuro);
    color: var(--blanco);
    border: none;
    border-radius: 6px;
    font-family: 'Lato', sans-serif;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.btn-primary:hover {
    background-color: var(--azul-francia-medio);
}

.questions-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.question-card {
    background-color: var(--blanco);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.question-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.question-user {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.question-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--azul-francia-claro);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--blanco);
    font-weight: 600;
}

.question-meta {
    color: var(--texto-claro);
    font-size: 0.9rem;
}

.question-title {
    font-family: 'Playfair Display', serif;
    color: var(--azul-francia-oscuro);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.question-content {
    color: var(--texto-claro);
    margin-bottom: 1rem;
}

.question-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag {
    padding: 0.25rem 0.75rem;
    background-color: var(--gris-medio);
    color: var(--texto-oscuro);
    border-radius: 12px;
    font-size: 0.8rem;
}

.question-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--gris-medio);
}

.btn-action {
    background: none;
    border: none;
    color: var(--texto-claro);
    cursor: pointer;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.btn-action:hover {
    color: var(--azul-francia-oscuro);
}

/* Búsqueda de carreras */
.career-search {
    background-color: var(--blanco);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.search-box {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.search-input {
    flex: 1;
    padding: 1rem;
    border: 2px solid var(--gris-medio);
    border-radius: 6px;
    font-family: 'Lato', sans-serif;
    font-size: 1.1rem;
    transition: border-color 0.3s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--azul-francia-oscuro);
}

.universities-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.university-careers {
    background-color: var(--gris-claro);
    padding: 1.5rem;
    border-radius: 8px;
}

.university-careers h3 {
    font-family: 'Playfair Display', serif;
    color: var(--azul-francia-oscuro);
    margin-bottom: 1rem;
}

.careers-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.career-item {
    padding: 0.5rem 1rem;
    background-color: var(--blanco);
    border: 1px solid var(--gris-medio);
    border-radius: 4px;
    font-size: 0.9rem;
}

.career-item.highlight {
    background-color: var(--azul-francia-claro);
    color: var(--blanco);
    border-color: var(--azul-francia-claro);
}

/* Modales */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background-color: var(--blanco);
    margin: 10% auto;
    padding: 2rem;
    border-radius: 8px;
    width: 90%;
    max-width: 500px;
    position: relative;
}

.close {
    position: absolute;
    right: 1rem;
    top: 1rem;
    font-size: 2rem;
    cursor: pointer;
    color: var(--texto-claro);
}

.close:hover {
    color: var(--texto-oscuro);
}

.modal-content h2 {
    font-family: 'Playfair Display', serif;
    color: var(--azul-francia-oscuro);
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--azul-francia-oscuro);
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--gris-medio);
    border-radius: 4px;
    font-family: 'Lato', sans-serif;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--azul-francia-oscuro);
}

/* Footer */
.footer {
    background-color: var(--azul-francia-oscuro);
    color: var(--blanco);
    padding: 2rem 0;
    text-align: center;
}

/* Responsive */
@media (max-width: 1200px) {
    .ad-space {
        display: none;
    }
    
    .main-content {
        padding: 0;
    }
}

@media (max-width: 768px) {
    /* Barra de navegación */
    .nav-container {
        flex-direction: column;
        gap: 0.5rem;
        padding: 0.75rem 1rem;
    }
    
    .nav-logo {
        text-align: center;
    }
    
    .logo-image {
        height: 50px;
        max-width: 200px;
    }
    
    .nav-menu {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
        font-size: 0.9rem;
    }
    
    .nav-auth {
        flex-direction: row;
        width: 100%;
        justify-content: center;
        gap: 0.5rem;
    }
    
    .btn-login, .btn-register {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
        flex: 1;
    }
    
    /* Sección hero */
    .hero-section {
        padding: 2rem 0;
    }
    
    .main-article {
        padding: 1.5rem;
        margin: 0 1rem;
    }
    
    .main-article h2 {
        font-size: 1.5rem;
    }
    
    .article-content {
        font-size: 1rem;
    }
    
    .article-content h3 {
        font-size: 1.3rem;
    }
    
    /* Filtros y búsqueda */
    .filters {
        flex-direction: column;
        gap: 1rem;
    }
    
    .search-container {
        padding: 1.5rem;
        margin: 0 1rem;
    }
    
    .btn-search {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
    
    .filter-select {
        padding: 0.75rem;
        font-size: 1rem;
    }
    
    /* Cursos */
    .courses-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .course-card {
        padding: 1.5rem;
    }
    
    /* Foro */
    .forum-filters {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }
    
    .btn-primary {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
    
    .question-card {
        padding: 1rem;
    }
    
    .question-title {
        font-size: 1.1rem;
    }
    
    /* Búsqueda de carreras */
    .career-search {
        padding: 1.5rem;
        margin: 0 1rem;
    }
    
    .search-box {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .search-input {
        padding: 0.75rem;
        font-size: 1rem;
    }
    
    /* Secciones generales */
    .section {
        padding: 2rem 0;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .section-description {
        font-size: 1rem;
        padding: 0 1rem;
    }
    
    /* Footer */
    .footer {
        padding: 1.5rem 0;
    }
    
    .footer p {
        font-size: 0.9rem;
        padding: 0 1rem;
    }
}

@media (max-width: 480px) {
    /* Ajustes adicionales para pantallas muy pequeñas */
    .nav-container {
        padding: 0.5rem 0.75rem;
    }
    
    .logo-image {
        height: 40px;
        max-width: 150px;
    }
    
    .nav-menu {
        font-size: 0.85rem;
    }
    
    .btn-login, .btn-register {
        padding: 0.4rem 0.8rem;
        font-size: 0.8rem;
    }
    
    .main-article {
        padding: 1rem;
        margin: 0 0.5rem;
    }
    
    .main-article h2 {
        font-size: 1.3rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .filter-select {
        padding: 0.6rem;
        font-size: 0.9rem;
    }
    
    .btn-search, .btn-primary {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }
}