/* --- CONFIGURACIÓN GENERAL Y PALETA --- */
:root {
    --azul-oscuro: #0A2240;      
    --azul-claro: #1A365D;       
    --azul-electrico: #00A3E0;   
    --blanco: #FFFFFF;
    --gris-fondo: #F4F7FA;
    --gris-texto: #2D3748;
    --negro-suave: #1A202C;
    --transicion: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Montserrat', sans-serif;
    color: var(--gris-texto);
    background-color: var(--blanco);
    overflow-x: hidden;
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 0;
}

.section-title {
    font-size: 2.2rem;
    color: var(--azul-oscuro);
    text-align: center;
    margin-bottom: 40px;
    font-weight: 700;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--azul-electrico);
    margin: 10px auto 0;
    border-radius: 2px;
}

/* --- SECCIÓN 1: NAVBAR --- */
.main-header {
    background-color: var(--azul-oscuro);
    color: var(--blanco);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 4%;
    max-width: 1400px;
    margin: 0 auto;
}

.brand {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo {
    height: 55px;
    width: auto;
}

.brand-text h1 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--blanco);
}

.slogan {
    font-size: 0.85rem;
    color: var(--azul-electrico);
    font-weight: 300;
}

/* Menú de Navegación */
.nav-menu ul {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 25px;
}

.nav-menu a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 600;
    transition: var(--transicion);
}

.nav-menu a:hover, .nav-menu a.active {
    color: var(--azul-electrico);
}

/* CORRECCIÓN ABSOLUTA DEL DROPDOWN: Asegura que inicia 100% replegado */
.dropdown {
    position: relative;
    padding: 10px 0; /* Zona segura para el puntero */
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--blanco);
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
    border-top: 3px solid var(--azul-electrico);
    
    /* Configuración de ocultación total inicial */
    display: flex;
    flex-direction: column;
    min-width: 200px;
    padding: 10px 0;
    border-radius: 0 0 4px 4px;
    z-index: 1001;
    
    opacity: 0;
    visibility: hidden;
    transform: translateY(15px);
    transition: var(--transicion);
    pointer-events: none; /* Evita interacciones accidentales estando oculto */
}

/* Acción de desplegar al pasar el mouse (Opción 1) */
.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}

/* Animación de la flecha indicadora */
.dropdown-toggle i {
    font-size: 0.8rem;
    margin-left: 5px;
    transition: var(--transicion);
}
.dropdown:hover .dropdown-toggle i {
    transform: rotate(180deg);
    color: var(--azul-electrico);
}

.dropdown-menu li {
    width: 100%;
}

.dropdown-menu li a {
    color: var(--negro-suave) !important;
    padding: 10px 20px;
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    text-align: left;
}

.dropdown-menu li a:hover {
    background-color: var(--gris-fondo);
    color: var(--azul-oscuro) !important;
    padding-left: 25px;
}

/* Botón Operatividad */
.btn-operatividad {
    background-color: var(--azul-electrico);
    color: var(--blanco) !important;
    padding: 10px 20px;
    border-radius: 4px;
    box-shadow: 0 4px 10px rgba(0, 163, 224, 0.3);
}

.btn-operatividad:hover {
    background-color: var(--blanco) !important;
    color: var(--azul-oscuro) !important;
    transform: translateY(-2px);
}

/* --- SECCIÓN 2: CARRUSEL HERO --- */
.hero-carousel {
    position: relative;
    height: 75vh;
    overflow: hidden;
}

.carousel-container {
    height: 100%;
    width: 100%;
    position: relative;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    z-index: 1;
}

.carousel-slide.active {
    opacity: 1;
    z-index: 2;
}

.slide-content {
    text-align: center;
    color: var(--blanco);
    max-width: 800px;
    padding: 0 20px;
}

.slide-content h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    font-style: italic;
}

.slide-content p {
    font-size: 1.3rem;
    font-weight: 300;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.3);
    color: white;
    border: none;
    font-size: 2rem;
    padding: 15px;
    cursor: pointer;
    z-index: 10;
    transition: var(--transicion);
}

.carousel-btn:hover { background: var(--azul-electrico); }
.carousel-btn.prev { left: 20px; }
.carousel-btn.next { right: 20px; }

/* --- SECCIÓN 3: NOTICIAS --- */
.news-section { background-color: var(--gris-fondo); }
.news-carousel-wrapper { overflow: hidden; padding: 10px; }
.news-container { display: flex; gap: 30px; transition: transform 0.5s ease; }

.news-card {
    background: var(--blanco);
    flex: 0 0 calc(33.333% - 20px);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
}

.news-img { height: 200px; background-size: cover; background-position: center; }
.news-info { padding: 25px; display: flex; flex-direction: column; flex-grow: 1; }
.news-info h3 { color: var(--azul-oscuro); font-size: 1.3rem; margin-bottom: 15px; }
.news-info p { font-size: 0.95rem; color: #666; margin-bottom: 20px; flex-grow: 1; }
.btn-read-more { color: var(--azul-electrico); text-decoration: none; font-weight: 600; font-size: 0.9rem; }

/* --- SECCIÓN 4: CURSOS NUEVOS --- */
.courses-carousel-wrapper { overflow: hidden; padding: 15px 5px; }
.courses-container { display: flex; gap: 25px; transition: transform 0.5s ease; }

.course-card {
    background: var(--blanco);
    flex: 0 0 calc(33.333% - 17px);
    border-radius: 12px;
    border: 1px solid #E2E8F0;
    overflow: hidden;
    position: relative;
}

.course-img { width: 100%; height: 220px; object-fit: cover; }
.course-tag { position: absolute; top: 15px; right: 15px; background-color: var(--azul-electrico); color: white; padding: 4px 12px; border-radius: 20px; font-size: 0.75rem; font-weight: 700; }
.course-body { padding: 25px; }
.course-body h3 { color: var(--azul-oscuro); font-size: 1.25rem; margin-bottom: 15px; }
.course-details { background-color: var(--gris-fondo); padding: 15px; border-radius: 6px; margin-bottom: 20px; font-size: 0.9rem; }
.price { color: var(--azul-oscuro); font-size: 1.1rem; }
.btn-brochure { display: block; text-align: center; background-color: var(--azul-oscuro); color: white; text-decoration: none; padding: 12px; border-radius: 6px; font-weight: 600; transition: var(--transicion); }
.btn-brochure:hover { background-color: var(--azul-electrico); }
.carousel-dots { display: flex; justify-content: center; gap: 10px; margin-top: 35px; }
.dot { width: 12px; height: 12px; background-color: #CBD5E0; border-radius: 50%; cursor: pointer; transition: var(--transicion); }
.dot.active { background-color: var(--azul-electrico); width: 28px; border-radius: 6px; }

/* --- SECCIÓN 5: PIE DE PÁGINA --- */
.main-footer {
    background-color: var(--negro-suave);
    color: #A0AEC0;
    padding-top: 60px;
    font-size: 0.9rem;
}

.footer-container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    padding-bottom: 40px;
}

.footer-block h3 { color: var(--blanco); font-size: 1.2rem; margin-bottom: 20px; }
.address { line-height: 1.8; }
.emails-list { list-style: none; }
.emails-list li { margin-bottom: 10px; }
.emails-list a { color: #A0AEC0; text-decoration: none; transition: var(--transicion); }
.emails-list a:hover { color: var(--blanco); }
.legal-links { display: flex; flex-direction: column; gap: 10px; margin-bottom: 25px; }
.legal-links a { color: #A0AEC0; text-decoration: none; font-size: 0.85rem; }
.legal-links a:hover { text-decoration: underline; }

.social-links { display: flex; gap: 15px; }
.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: #2D3748;
    color: white;
    border-radius: 50%;
    text-decoration: none;
    transition: var(--transicion);
}
.social-links a:hover { background-color: var(--azul-electrico); transform: translateY(-3px); }
.footer-bottom { background-color: #0F141C; text-align: center; padding: 20px 0; font-size: 0.8rem; border-top: 1px solid #2D3748; }

/* Responsive */
@media (max-width: 992px) {
    .news-card, .course-card { flex: 0 0 calc(50% - 15px); }
    .footer-container { grid-template-columns: 1fr; gap: 30px;}
    .header-container { flex-direction: column; gap: 20px; text-align: center;}
    /* En móviles convertimos el desplegable a vista nativa táctil sencilla */
    .dropdown:hover .dropdown-menu { position: relative; box-shadow: none; transform: none; opacity: 1; visibility: visible; pointer-events: auto;}
}

@media (max-width: 600px) {
    .news-card, .course-card { flex: 0 0 100%; }
    .slide-content h2 { font-size: 2rem; }
    .nav-menu ul { flex-direction: column; gap: 10px; }
}