/* =========================================
   1. VARIABLES Y RESETEO
   ========================================= */
:root {
    --color-primario: #00114F; /* Azul Institucional */
    --color-acento: #E30613;   /* Rojo Cruz Roja */
    --color-acento-hover: #b5001a;
    --color-blanco: #ffffff;
    --color-fondo: #f4f7f6;
    --color-texto: #333;
    --sombra-card: 0 10px 30px rgba(0, 0, 0, 0.08);
    --sombra-header: 0 2px 10px rgba(0, 0, 0, 0.05);
    --fuente-principal: 'Open Sans', sans-serif;
    --fuente-titulos: 'Poppins', sans-serif;
}

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

body {
    font-family: var(--fuente-principal);
    background-color: var(--color-fondo);
    color: var(--color-texto);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: var(--fuente-titulos);
    color: var(--color-primario);
}

a { text-decoration: none; transition: color 0.3s ease; }

/* =========================================
   2. HEADER Y NAVEGACIÓN
   ========================================= */
.site-header {
    width: 100%;
    background-color: var(--color-blanco);
    box-shadow: var(--sombra-header);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 0;
    gap: 20px;
}

/* --- LOGOS --- */
.header-logos-container {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 5px;
    flex-shrink: 0;
    max-width: 65%;
}

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

.logo-header {
    max-height: 70px;
    width: auto;
    max-width: 100%; 
    object-fit: contain;
    transition: transform 0.3s ease;
}

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

.header-subtitle {
    color: var(--color-primario);
    font-family: var(--fuente-titulos);
    font-weight: 600;
    font-size: 0.9rem;
    line-height: 1.2;
    margin: 0;
}

/* --- MENÚ DE NAVEGACIÓN --- */
.main-nav {
    display: flex;
    gap: 10px; /* Un poco menos de espacio para que quepa el dropdown */
    align-items: center;
    flex-shrink: 1; 
}

.main-nav > a {
    padding: 10px 12px;
    text-decoration: none;
    font-weight: 600;
    color: var(--color-texto);
    white-space: nowrap; 
    border-radius: 5px;
}

.main-nav > a:hover { color: var(--color-acento); }

.main-nav a.active {
    background-color: var(--color-acento);
    color: white !important;
}

.menu-toggle {
    display: none;
    font-size: 1.8rem;
    color: var(--color-primario);
    cursor: pointer;
}

/* =========================================
   2.1 ESTILOS DEL DROPDOWN (ALUMNOS) - ¡AQUÍ ESTABA EL ERROR!
   ========================================= */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropbtn {
    background-color: transparent;
    color: var(--color-texto);
    padding: 10px 12px;
    font-size: 1rem; /* Igual que los enlaces */
    border: none;
    cursor: pointer;
    font-family: var(--fuente-principal);
    font-weight: 600;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 5px;
}

.dropdown:hover .dropbtn, .dropbtn:hover {
    color: var(--color-acento);
}

/* Contenido oculto por defecto */
.dropdown-content {
    display: none; /* ESTO FALTABA: Oculto por defecto */
    position: absolute;
    background-color: #ffffff;
    min-width: 200px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.1);
    z-index: 1000;
    border-top: 3px solid var(--color-acento);
    border-radius: 0 0 5px 5px;
    top: 100%;
    right: 0; 
}

/* Enlaces dentro del dropdown */
.dropdown-content a {
    color: var(--color-texto);
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    font-size: 0.9rem;
    text-align: left;
    border-bottom: 1px solid #f0f0f0;
}

.dropdown-content a:hover {
    background-color: #f9f9f9;
    color: var(--color-acento);
    padding-left: 20px;
}

/* Mostrar en Hover (Solo escritorio) */
@media (min-width: 993px) {
    .dropdown:hover .dropdown-content {
        display: block;
        animation: fadeIn 0.3s ease;
    }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* =========================================
   3. UTILIDADES
   ========================================= */
.contenedor { max-width: 1200px; margin: 0 auto; width: 95%; }
.seccion { padding: 4rem 0; }
.text-center { text-align: center; }

.section-heading {
    font-size: 2.5rem; margin-bottom: 3rem; position: relative;
    padding-bottom: 1rem; text-align: center;
}
.section-heading::after {
    content: ''; position: absolute; left: 50%; transform: translateX(-50%);
    bottom: 0; width: 80px; height: 4px; background-color: var(--color-acento);
}
.page-title { font-size: 2.5rem; margin-bottom: 2rem; color: var(--color-primario); }

/* =========================================
   4. CARDS Y CONTENEDORES
   ========================================= */
.info-card {
    background-color: var(--color-blanco); padding: 2.5rem; border-radius: 12px;
    box-shadow: var(--sombra-card); margin-bottom: 2rem; border-top: 5px solid var(--color-acento);
    transition: transform 0.3s ease;
}
.info-card:hover { transform: translateY(-5px); }

.card-heading {
    color: var(--color-primario); font-size: 1.5rem; margin-bottom: 1rem;
    display: flex; align-items: center; gap: 10px;
}
.card-heading::before {
    content: ''; display: block; width: 5px; height: 20px;
    background-color: var(--color-acento); border-radius: 2px;
}
ul, ol { margin-left: 1.5rem; } li { margin-bottom: 0.5rem; }

/* =========================================
   5. BOTONES
   ========================================= */
.btn-primary {
    background-color: var(--color-primario); color: white; padding: 12px 25px;
    border-radius: 50px; font-weight: bold; display: inline-flex; align-items: center;
    justify-content: center; gap: 10px; transition: all 0.3s ease; border: 2px solid var(--color-primario); cursor: pointer;
}
.btn-primary:hover { background-color: var(--color-acento); border-color: var(--color-acento); transform: translateY(-2px); color: white; }

.btn-secondary {
    background-color: transparent; color: var(--color-acento); padding: 12px 25px;
    border-radius: 50px; font-weight: bold; border: 2px solid var(--color-acento);
    display: inline-flex; align-items: center; justify-content: center; gap: 10px; transition: all 0.3s ease; cursor: pointer;
}
.btn-secondary:hover { background-color: var(--color-acento); color: white; }
.large-btn { font-size: 1.2rem; padding: 15px 35px; }

/* =========================================
   6. CAROUSEL
   ========================================= */
.banner-carousel { width: 100%; position: relative; overflow: hidden; }
.carousel-inner { position: relative; width: 100%; aspect-ratio: 16/6; }
.carousel-item {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    opacity: 0; transition: opacity 1s ease-in-out;
}
.carousel-item.active { opacity: 1; z-index: 1; }
.carousel-img { width: 100%; height: 100%; object-fit: cover; }
.carousel-caption {
    position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.5); padding: 2rem; border-radius: 10px;
    color: white; text-align: center; width: 80%; max-width: 800px;
}
.carousel-caption h2 { color: white; font-size: 2.5rem; text-transform: uppercase; }
.carousel-control {
    position: absolute; top: 50%; transform: translateY(-50%);
    background: rgba(0,0,0,0.5); color: white; border: none; font-size: 2rem; padding: 10px 15px; cursor: pointer; z-index: 10;
}
.prev { left: 20px; } .next { right: 20px; }

/* =========================================
   7, 8, 9, 10, 11 - OTROS ESTILOS
   ========================================= */
.historia-timeline { position: relative; padding: 2rem 0; }
.timeline-item { display: flex; gap: 2rem; margin-bottom: 2rem; }
.timeline-date { background: var(--color-acento); color: white; padding: 10px 20px; border-radius: 50px; font-weight: bold; min-width: 100px; text-align: center; height: fit-content; }
.timeline-description { background: white; padding: 1.5rem; border-radius: 10px; box-shadow: var(--sombra-card); flex: 1; }

.card-group { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
.card { background: white; padding: 2rem; border-radius: 10px; text-align: center; box-shadow: var(--sombra-card); transition: transform 0.3s; }
.card:hover { transform: translateY(-5px); }
.feature-icon { font-size: 3rem; color: var(--color-acento); margin-bottom: 1rem; }

.formulario-emva { background: white; padding: 3rem; border-radius: 15px; box-shadow: var(--sombra-card); max-width: 800px; margin: 0 auto; }
.campo { margin-bottom: 1.5rem; text-align: left; }
.campo label { display: block; font-weight: bold; margin-bottom: 0.5rem; color: var(--color-primario); }
.campo input, .campo textarea { width: 100%; padding: 12px; border: 1px solid #ddd; border-radius: 5px; font-size: 1rem; font-family: inherit; }
.campo input:focus, .campo textarea:focus { border-color: var(--color-acento); outline: none; box-shadow: 0 0 5px rgba(227, 6, 19, 0.2); }
.btn-submit-form { width: 100%; justify-content: center; font-size: 1.2rem; }

.contacto-wrapper { display: flex; flex-wrap: wrap; gap: 4rem; margin-bottom: 4rem; align-items: flex-start; }
.contacto-info-column, .contacto-form-column { flex: 1; min-width: 300px; }
.info-list { display: flex; flex-direction: column; gap: 2rem; }
.info-list-item { display: flex; align-items: flex-start; gap: 1.5rem; }
.icon-box { background-color: rgba(227, 6, 19, 0.1); color: var(--color-acento); width: 50px; height: 50px; border-radius: 50%; display: flex; justify-content: center; align-items: center; font-size: 1.5rem; flex-shrink: 0; }
.info-list-item h4 { margin: 0 0 0.5rem 0; font-size: 1.2rem; color: var(--color-primario); }
.info-list-item p { margin: 0; color: #555; line-height: 1.5; }
.compact-form { padding: 2.5rem; margin: 0; width: 100%; }
.full-width-map { margin-top: 2rem; border-radius: 12px; overflow: hidden; box-shadow: var(--sombra-card); }

.admisiones-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.perfil-laboral { display: grid; grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)); gap: 2rem; }
.banner-historia { background: linear-gradient(rgba(0,17,79,0.85), rgba(0,17,79,0.85)), url('../img/nosotros.png'); background-size: cover; background-position: center; padding: 5rem 0; color: white; text-align: center; border-radius: 0 0 15px 15px; }
.banner-title { color: white !important; font-size: 3rem; margin-bottom: 0; }

/* =========================================
   12. MEDIA QUERIES (CORRECCIÓN TOTAL MÓVIL)
   ========================================= */
@media (max-width: 992px) {
    /* HEADER */
    .header-flex { padding: 1rem 0; }
    .header-logos { gap: 10px; }
    .logo-header { max-height: 50px; }
    .header-subtitle { font-size: 0.75rem; }
    
    /* MENÚ TOGGLE */
    .menu-toggle { display: block !important; font-size: 2rem; cursor: pointer; color: var(--color-primario); }
    
    /* NAVEGACIÓN MÓVIL */
    .main-nav {
        display: none; /* Oculto por defecto */
        flex-direction: column; width: 100%; position: absolute; top: 100%; left: 0;
        background: white; box-shadow: 0 10px 15px rgba(0,0,0,0.1);
        border-top: 3px solid var(--color-acento); z-index: 9999; padding: 0;
    }
    .main-nav.active { display: flex; }
    .main-nav > a { width: 100%; padding: 15px 20px; border-bottom: 1px solid #eee; text-align: left; }

    /* DROPDOWN ALUMNOS MÓVIL */
    .dropdown { width: 100%; display: block; }
    .dropbtn {
        width: 100%; text-align: left; padding: 15px 20px;
        border-bottom: 1px solid #eee; justify-content: space-between;
    }
    .dropdown-content {
        position: relative; box-shadow: none; border: none;
        background-color: #f8f8f8; width: 100%; display: none; padding-left: 20px;
    }
    .dropdown-content.show { display: block; }

    /* SLIDER MÓVIL (CORREGIDO) */
    .banner-carousel { height: auto; }
    .carousel-inner { aspect-ratio: auto; height: 60vh; min-height: 400px; }
    .carousel-item { height: 100%; }
    .carousel-img { height: 100%; width: 100%; object-fit: cover; object-position: center; }
    .carousel-caption { width: 90%; padding: 1rem; }
    .carousel-caption h2 { font-size: 1.5rem; }

    /* OTROS */
    .contacto-wrapper { flex-direction: column; gap: 3rem; }
    .contacto-info-column, .contacto-form-column { width: 100%; }
    .timeline-item { flex-direction: column; gap: 1rem; }
    .perfil-laboral, .admisiones-grid { grid-template-columns: 1fr; }
}

/* =========================================
   13. FOOTER
   ========================================= */
.site-footer { background-color: var(--color-blanco); padding: 1rem 0; margin-top: 4rem; border-top: 5px solid var(--color-acento); box-shadow: 0 -5px 20px rgba(0,0,0,0.05); }
.footer-content { display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; gap: 0.5rem; }
.footer-logos { display: flex; justify-content: center; align-items: center; gap: 20px; margin: 0; line-height: 0; }
.logo-footer-img { height: 45px; width: auto; object-fit: contain; transition: transform 0.3s ease; }
.logo-footer-img:hover { transform: scale(1.1); }
.footer-links { display: flex; justify-content: center; gap: 20px; margin: 0; }
.footer-links a { color: var(--color-texto); font-weight: 600; font-size: 0.85rem; text-decoration: none; }
.footer-links a:hover { color: var(--color-acento); text-decoration: underline; }
.footer-bottom { border-top: 1px solid #eee; padding-top: 0.5rem; width: 100%; color: #888; font-size: 0.8rem; margin-top: 0.2rem; }
.footer-bottom p { margin: 0; } .footer-bottom a { color: var(--color-primario); font-weight: bold; }

/* =========================================
   14. ANIMACIONES (SCROLL REVEAL)
   ========================================= */
.fade-up { opacity: 0; transform: translateY(40px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; will-change: opacity, transform; }
.fade-up.visible { opacity: 1; transform: translateY(0); }
.delay-100 { transition-delay: 0.1s; } .delay-200 { transition-delay: 0.2s; } .delay-300 { transition-delay: 0.3s; }