/* ================= VARIABLES Y BASES ================= */
:root {
    --rojo: #C62828; 
    --azul: #0D47A1; 
    --amarillo: #FBC02D; 
    --blanco: #FFFFFF;
    --gris-fondo: #F4F7F9;
    --gris-texto: #333333;
    --fuente-titulo: 'Montserrat', sans-serif;
    --fuente-cuerpo: 'Open Sans', sans-serif;
    --sombra: 0 10px 30px rgba(0,0,0,0.08);
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body { 
    font-family: var(--fuente-cuerpo); 
    color: var(--gris-texto); 
    background: var(--blanco); 
    overflow-x: hidden; 
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

h1, h2, h3, h4 { font-family: var(--fuente-titulo); }
a { text-decoration: none; color: inherit; }

/* ================= UTILIDADES ================= */
.container { width: 90%; max-width: 1200px; margin: 0 auto; }
.section-padding { padding: 100px 0; }
.bg-light { background: var(--gris-fondo); }

.center-title { text-align: center; margin-bottom: 60px; padding-top: 40px; }
.center-title h2 { font-size: 2.5rem; color: var(--azul); font-weight: 800; position: relative; display: inline-block; }
.center-title h2::after { content: ''; width: 50%; height: 4px; background: var(--rojo); position: absolute; bottom: -10px; left: 25%; }

/* ================= HEADER Y NAVEGACIÓN ================= */
header {
    position: fixed; top: 0; width: 100%; z-index: 1000;
    padding: 20px 0; transition: var(--transition);
    background: rgba(13, 71, 161, 0.98); /* Azul sólido para páginas internas */
    box-shadow: var(--sombra);
}

/* Comportamiento del header SOLO en el inicio (clase .home-page en el body) */
body.home-page header { background: rgba(255, 255, 255, 0.05); backdrop-filter: blur(10px); box-shadow: none; }
body.home-page header.scrolled { background: rgba(255, 255, 255, 0.98); padding: 12px 0; box-shadow: var(--sombra); }
body.home-page header.scrolled .logo-text, body.home-page header.scrolled .nav-links a { color: var(--azul); }
body.home-page header.scrolled .nav-links a:hover, body.home-page header.scrolled .nav-links a.active { color: var(--rojo); }
body.home-page header.scrolled .menu-toggle { color: var(--azul); }

.nav-container { display: flex; justify-content: space-between; align-items: center; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo i { font-size: 2rem; color: var(--rojo); }
.logo-text { color: var(--blanco); font-weight: 800; line-height: 1; font-size: 1.1rem; transition: var(--transition); }
.logo-text span { color: var(--amarillo); font-size: 0.8rem; display: block; }

.nav-links { display: flex; gap: 30px; }
.nav-links a { color: var(--blanco); font-weight: 700; font-size: 0.9rem; text-transform: uppercase; transition: var(--transition); }
.nav-links a:hover, .nav-links a.active { color: var(--amarillo); }

.menu-toggle { display: none; color: var(--blanco); font-size: 1.5rem; cursor: pointer; transition: var(--transition); }

/* ================= BOTONES ================= */
.btn {
    padding: 15px 35px; border-radius: 50px; font-weight: 700; text-transform: uppercase;
    display: inline-block; transition: var(--transition); cursor: pointer; border: none; text-align: center;
}
.btn-red { background: var(--rojo); color: var(--blanco); }
.btn-red:hover { transform: translateY(-3px); background: var(--blanco); color: var(--rojo); box-shadow: var(--sombra);}

.btn-link { 
    color: var(--rojo); font-weight: 700; font-size: 0.9rem; 
    display: inline-flex; align-items: center; gap: 8px; transition: var(--transition);
}
.btn-link:hover { color: var(--azul); }

.btn-download { 
    padding: 10px 25px; background: var(--gris-fondo); color: var(--azul); 
    border-radius: 30px; font-weight: 700; font-size: 0.85rem; 
    transition: var(--transition); display: flex; align-items: center; gap: 8px;
}
.btn-download:hover { background: var(--rojo); color: var(--blanco); }

/* ================= HERO CAROUSEL (Solo Inicio) ================= */
.hero { position: relative; height: 100vh; width: 100%; overflow: hidden; background: var(--azul); }
.slide {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    opacity: 0; transition: opacity 1s ease-in-out;
    display: flex; align-items: center; justify-content: center;
    background-size: cover; background-position: center;
}
.slide.active { opacity: 1; z-index: 5; }
.slide::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to right, rgba(13, 71, 161, 0.6), rgba(0,0,0,0.5)); }

.hero-content { position: relative; z-index: 10; color: var(--blanco); text-align: left; width: 90%; max-width: 1200px; }
.hero-content h1 { font-size: 4rem; font-weight: 800; margin-bottom: 20px; line-height: 1.1; max-width: 800px; text-shadow: 0 4px 15px rgba(0,0,0,0.3); }
.hero-content p { font-size: 1.2rem; margin-bottom: 30px; max-width: 600px; color: rgba(255,255,255,0.9); }

.carousel-nav { position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%); display: flex; gap: 15px; z-index: 20; }
.dot { width: 12px; height: 12px; background: rgba(255,255,255,0.4); border-radius: 50%; cursor: pointer; transition: var(--transition); }
.dot.active { background: var(--amarillo); transform: scale(1.3); }

/* ================= AUTORIDADES (FLIP CARDS) ================= */
.auth-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 30px; margin-top: 40px; }
.flip-card { perspective: 1500px; height: 500px; cursor: pointer; }
.flip-card-inner {
    position: relative; width: 100%; height: 100%; text-align: center;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1); transform-style: preserve-3d;
}
.flip-card:hover .flip-card-inner { transform: rotateY(180deg); }

.card-front, .card-back {
    position: absolute; width: 100%; height: 100%; backface-visibility: hidden;
    border-radius: 20px; overflow: hidden; display: flex; flex-direction: column;
    box-shadow: var(--sombra);
}
.card-front { background: var(--blanco); padding: 40px 20px; border-bottom: 6px solid var(--azul); }
.card-back { 
    background: var(--azul); color: var(--blanco); 
    transform: rotateY(180deg); padding: 30px; justify-content: center;
    border-bottom: 6px solid var(--amarillo);
}

.auth-img { width: 180px; height: 180px; border-radius: 50%; object-fit: cover; margin: 0 auto 20px; border: 5px solid var(--gris-fondo); transition: var(--transition); }
.flip-card:hover .auth-img { border-color: var(--amarillo); }
.auth-name { font-size: 1.4rem; color: var(--azul); margin-bottom: 5px; font-weight: 800; }
.auth-role { color: var(--rojo); font-weight: 700; text-transform: uppercase; font-size: 0.9rem; }

.back-content h4 { font-size: 1.2rem; margin-bottom: 20px; border-bottom: 2px solid var(--amarillo); padding-bottom: 10px; }
.back-content ul { text-align: left; font-size: 0.9rem; list-style: none; line-height: 1.5; }
.back-content ul li { margin-bottom: 15px; }
.back-content ul li strong { color: var(--amarillo); display: block; text-transform: uppercase; font-size: 0.8rem; letter-spacing: 1px; margin-bottom: 3px; }

/* ================= CARRUSEL DECANOS (SCROLL INFINITO) ================= */
.team-slider { background: var(--gris-fondo); padding: 80px 0; overflow: hidden; }
.slider-container { display: flex; align-items: center; position: relative; }
.slider-track { display: flex; gap: 20px; animation: scroll 40s linear infinite; }
.slider-track:hover { animation-play-state: paused; }

.team-card {
    min-width: 250px; background: var(--blanco); padding: 25px; border-radius: 15px;
    text-align: center; box-shadow: 0 5px 15px rgba(0,0,0,0.03); transition: var(--transition);
}
.team-card:hover { transform: translateY(-5px); box-shadow: var(--sombra); border-bottom: 3px solid var(--azul); }
.team-card img { width: 100px; height: 100px; border-radius: 50%; object-fit: cover; margin-bottom: 15px; border: 3px solid var(--gris-fondo); }
.team-card h5 { color: var(--azul); font-size: 1.1rem; margin-bottom: 5px; }
.team-card p { color: var(--rojo); font-weight: 700; font-size: 0.8rem; text-transform: uppercase; }

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(calc(-270px * 6)); } /* Ajustar multiplicador según cantidad de items */
}

/* ================= GRID GENERAL (Noticias, Propuestas, Recursos) ================= */
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }

/* Noticias */
.news-item { background: var(--blanco); border-radius: 15px; overflow: hidden; box-shadow: var(--sombra); transition: var(--transition); }
.news-item:hover { transform: translateY(-10px); }
.news-img { height: 200px; background-size: cover; background-position: center; }
.news-body { padding: 25px; }
.news-tag { color: var(--rojo); font-weight: 800; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 1px; }
.news-item h4 { margin: 10px 0; color: var(--azul); font-size: 1.2rem; line-height: 1.3;}
.news-item p { font-size: 0.9rem; color: #666; }

/* Propuestas */
.prop-card { background: var(--gris-fondo); padding: 40px; border-radius: 15px; text-align: center; box-shadow: var(--sombra); transition: var(--transition);}
.prop-card:hover { transform: translateY(-5px); background: var(--blanco); border: 1px solid var(--rojo);}
.prop-card i { font-size: 3rem; color: var(--azul); margin-bottom: 20px; transition: var(--transition); }
.prop-card:hover i { color: var(--rojo); }
.prop-card h3 { color: var(--azul); margin-bottom: 15px; font-weight: 800;}
.prop-card p { color: #555; line-height: 1.6; }

/* ================= RECURSOS ================= */
/* Vista Resumen (Home) */
.resource-card-mini { 
    background: var(--blanco); padding: 40px 30px; border-radius: 15px; 
    box-shadow: var(--sombra); text-align: center; transition: var(--transition); 
    border-bottom: 4px solid transparent;
}
.resource-card-mini:hover { transform: translateY(-8px); border-bottom: 4px solid var(--rojo); }
.resource-card-mini i { font-size: 3rem; color: var(--azul); margin-bottom: 20px; transition: var(--transition); }
.resource-card-mini:hover i { color: var(--rojo); }
.resource-card-mini h4 { color: var(--azul); margin-bottom: 15px; font-size: 1.2rem; }
.resource-card-mini p { color: #666; margin-bottom: 20px; font-size: 0.9rem; }

/* Vista Interna (Pestañas/Tabs) */
.tabs-header { display: flex; justify-content: center; gap: 15px; margin-bottom: 50px; flex-wrap: wrap; }
.tab-btn { 
    padding: 12px 30px; border: 2px solid var(--azul); background: transparent; 
    color: var(--azul); border-radius: 30px; cursor: pointer; font-weight: 700; 
    transition: var(--transition); font-family: var(--fuente-titulo); font-size: 0.9rem;
}
.tab-btn.active, .tab-btn:hover { background: var(--azul); color: var(--blanco); box-shadow: var(--sombra); }

.tab-content { display: none; animation: fadeIn 0.5s ease; }
.tab-content.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

.resource-list { display: flex; flex-direction: column; gap: 20px; max-width: 800px; margin: 0 auto; }
.resource-item { 
    display: flex; align-items: center; justify-content: space-between; 
    background: var(--blanco); padding: 25px; border-radius: 12px; 
    border-left: 5px solid var(--amarillo); box-shadow: 0 4px 15px rgba(0,0,0,0.03); 
    transition: var(--transition); border-top: 1px solid #eee; border-right: 1px solid #eee; border-bottom: 1px solid #eee;
}
.resource-item:hover { border-left-color: var(--rojo); transform: translateX(5px); box-shadow: var(--sombra); }
.resource-info { display: flex; align-items: center; gap: 20px; }
.resource-info i { font-size: 2.5rem; color: #777;}
.resource-info i.fa-file-pdf { color: #d32f2f; }
.resource-info i.fa-file-zipper { color: #F57F17; }
.resource-info i.fa-image { color: #1565C0; }
.resource-info i.fa-file-excel { color: #2E7D32; }
.resource-title { font-weight: 800; color: var(--azul); margin-bottom: 5px; font-family: var(--fuente-titulo); font-size: 1.1rem;}
.resource-meta { font-size: 0.85rem; color: #777; }

/* ================= FOOTER ================= */
footer { background: #1a1a1a; color: var(--blanco); padding: 80px 0 30px; margin-top: auto; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.5fr; gap: 50px; margin-bottom: 50px; }
.footer-about h3 { font-size: 1.5rem; margin-bottom: 20px; color: var(--amarillo); font-weight: 800;}
.footer-about p { line-height: 1.6; color: #ccc; }
.footer-links h4, .footer-contact h4 { margin-bottom: 25px; font-size: 1.1rem; border-left: 4px solid var(--rojo); padding-left: 15px; color: var(--blanco);}
.footer-links ul { list-style: none; }
.footer-links ul li { margin-bottom: 12px; }
.footer-links a { color: #ccc; transition: var(--transition); }
.footer-links a:hover { color: var(--amarillo); padding-left: 5px; }
.footer-contact p { margin-bottom: 15px; color: #ccc; display: flex; gap: 10px; align-items: center;}
.footer-contact i { color: var(--rojo); }
.footer-bottom { border-top: 1px solid #333; padding-top: 30px; text-align: center; color: #777; font-size: 0.9rem; }

/* ================= DISEÑO RESPONSIVE (MÓVILES Y TABLETS) ================= */
@media (max-width: 992px) {
    .hero-content h1 { font-size: 2.8rem; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    /* Menú Móvil */
    .nav-links { 
        display: none; /* Oculto por defecto en móvil */
        position: fixed; top: 70px; left: 0; width: 100%; 
        background: var(--blanco); flex-direction: column; 
        padding: 20px 0; box-shadow: var(--sombra); gap: 15px;
    }
    .nav-links.active { display: flex; }
    .nav-links a { color: var(--azul) !important; text-align: center; padding: 10px; }
    .menu-toggle { display: block; }
    
    /* Ajustes Generales */
    .hero-content h1 { font-size: 2.2rem; }
    .section-padding { padding: 60px 0; }
    .center-title { padding-top: 60px; margin-bottom: 40px; }
    .center-title h2 { font-size: 2rem; }
    .footer-grid { grid-template-columns: 1fr; gap: 40px; }
    
    /* Autoridades (Desactivar 3D flip en móvil para mejor usabilidad) */
    .flip-card { height: auto; perspective: none; }
    .flip-card-inner { transition: none; transform: none !important; }
    .card-front, .card-back { position: relative; transform: none; box-shadow: none; border-radius: 0;}
    .card-front { border-radius: 20px 20px 0 0; border-bottom: none;}
    .card-back { border-radius: 0 0 20px 20px; border-top: 1px solid rgba(255,255,255,0.1); }
    .flip-card { box-shadow: var(--sombra); border-radius: 20px; overflow: hidden;}
    
    /* Recursos */
    .resource-item { flex-direction: column; align-items: flex-start; gap: 20px; }
    .btn-download { width: 100%; justify-content: center; }
}