:root {
    /* Paleta extraída del arte oficial y portal UMG */
    --umg-navy: #0b2545;       /* Azul marino profundo de los recuadros y letras */
    --umg-blue-dark: #13315c;  /* Azul intermedio para degradados */
    --umg-shield-blue: #0077b6;/* Azul celeste del centro del escudo UMG */
    --umg-red: #c81d25;        /* Rojo carmesí exacto del botón SÁBADO y anillo del escudo */
    --umg-gold: #d4af37;       /* Dorado del borde del escudo */
    --text-dark: #1e293b;
    --text-muted: #475569;
    --bg-light: #f1f5f9;
    --white: #ffffff;
}

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

html {
    scroll-behavior: smooth;
    font-family: 'Montserrat', sans-serif;
    color: var(--text-dark);
}

.container {
    width: 92%;
    max-width: 1180px;
    margin: 0 auto;
}

/* Franja Superior */
.top-bar {
    background-color: #061527;
    color: #cbd5e1;
    font-size: 0.8rem;
    padding: 0.5rem 0;
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.top-bar strong {
    color: var(--white);
}

/* Barra de Navegación */
.navbar {
    background-color: var(--white);
    border-bottom: 3px solid var(--umg-gold);
    padding: 0.9rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 12px rgba(11, 37, 69, 0.08);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.brand-logo {
    height: 52px;
    width: auto;
}

.logo-placeholder {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--umg-shield-blue);
    border: 4px solid var(--umg-red);
    outline: 2px solid var(--umg-gold);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Cinzel', serif;
    font-weight: 700;
    font-size: 0.9rem;
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.univ-name {
    font-family: 'Cinzel', serif;
    font-weight: 700;
    color: var(--umg-navy);
    font-size: 1.05rem;
}

.campus-name {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--umg-red);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-links {
    display: flex;
    gap: 1.8rem;
    align-items: center;
}

.nav-links a {
    color: var(--umg-navy);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--umg-red);
}

.btn-nav {
    background-color: var(--umg-red);
    color: var(--white) !important;
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
}

.btn-nav:hover {
    background-color: #a7161d;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--umg-navy);
    font-size: 1.7rem;
    cursor: pointer;
}

/* HERO SECTION (Estilo Afiche UMG) */
.hero {
    position: relative;
    background: linear-gradient(135deg, rgba(11, 37, 69, 0.94) 0%, rgba(19, 49, 92, 0.88) 100%),
                url('../assets/hero-sede.webp') center/cover no-repeat;
    color: var(--white);
    padding: 5rem 0 4.5rem;
    text-align: center;
    border-bottom: 5px solid var(--umg-red);
}

.hero-kicker {
    text-transform: uppercase;
    letter-spacing: 3px;
    font-size: 0.85rem;
    color: var(--umg-gold);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.univ-title {
    font-family: 'Cinzel', serif;
    font-size: 2.4rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 0.4rem;
}

.campus-title {
    font-family: 'Cinzel', serif;
    font-size: 1.5rem;
    font-weight: 600;
    color: #e2e8f0;
    margin-bottom: 2rem;
}

/* Insignia Bicolor "Carreras en plan SÁBADO" */
.plan-badge {
    display: inline-flex;
    align-items: center;
    border-radius: 50px;
    overflow: hidden;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.35);
    border: 2px solid rgba(255, 255, 255, 0.25);
    margin-bottom: 2.5rem;
}

.plan-left {
    background-color: var(--umg-navy);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.plan-right {
    background-color: var(--umg-red);
    color: var(--white);
    padding: 0.75rem 1.8rem;
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.umg-motto {
    font-style: italic;
    font-size: 1.1rem;
    color: #cbd5e1;
    max-width: 500px;
    margin: 0 auto;
}

.umg-motto cite {
    display: block;
    font-size: 0.85rem;
    margin-top: 0.3rem;
    color: var(--umg-gold);
    font-style: normal;
}

/* Secciones Generales */
.section {
    padding: 4.5rem 0;
}

.bg-light {
    background-color: var(--bg-light);
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    font-family: 'Cinzel', serif;
    font-size: 2rem;
    color: var(--umg-navy);
    margin-bottom: 0.5rem;
}

.section-subtitle {
    color: var(--text-muted);
    max-width: 650px;
    margin: 0 auto;
}

/* Oferta Académica (Estilo cápsula azul marino del afiche) */
.academic-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.academic-box {
    background: linear-gradient(160deg, var(--umg-navy) 0%, var(--umg-blue-dark) 100%);
    color: var(--white);
    border-radius: 18px;
    padding: 2.2rem;
    box-shadow: 0 12px 25px rgba(11, 37, 69, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.box-header {
    margin-bottom: 1.8rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    padding-bottom: 1rem;
}

.box-tag {
    display: inline-block;
    background-color: var(--umg-shield-blue);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    margin-bottom: 0.6rem;
    text-transform: uppercase;
}

.tag-red {
    background-color: var(--umg-red);
}

.box-header h3 {
    font-size: 1.35rem;
    color: var(--white);
}

.career-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.career-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.9rem;
}

.career-bullet {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--umg-gold);
    margin-top: 6px;
    flex-shrink: 0;
}

.bullet-red {
    background-color: #ff6b6b;
}

.career-list strong {
    display: block;
    font-size: 1.05rem;
    margin-bottom: 0.2rem;
}

.career-list p {
    font-size: 0.88rem;
    color: #cbd5e1;
    line-height: 1.4;
}

/* Ajuste para el logo de 60 años en la barra superior */
.brand-logo {
    height: 58px;
    width: auto;
    object-fit: contain;
}

/* Banner de Aniversario (60 años UMG / 15 años Sede) */
.anniversary-banner {
    background: var(--white);
    border-radius: 14px;
    padding: 1.8rem 2.2rem;
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 2.5rem;
    box-shadow: 0 6px 20px rgba(11, 37, 69, 0.07);
    border-left: 6px solid var(--umg-shield-blue);
}

.anniversary-logo {
    height: 95px;
    width: auto;
    object-fit: contain;
    flex-shrink: 0;
}

.anniversary-badges {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
    margin-bottom: 0.6rem;
}

.badge-60 {
    background-color: var(--umg-shield-blue);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
}

.badge-15 {
    background-color: var(--umg-red);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
}

.anniversary-text h3 {
    color: var(--umg-navy);
    font-size: 1.3rem;
    margin-bottom: 0.3rem;
}

.anniversary-text p {
    color: var(--text-muted);
    font-size: 0.92rem;
}

/* Cuadrícula para las 4 fotos reales */
.gallery-grid-4 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 250px;
    gap: 1.4rem;
}

.gallery-card {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 18px rgba(11, 37, 69, 0.12);
    background-color: var(--umg-navy);
}

/* La foto de graduación ocupa 2 columnas y 2 filas para destacar */
.gallery-card.card-featured {
    grid-column: span 2;
    grid-row: span 2;
}

.gallery-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.gallery-card:hover img {
    transform: scale(1.05);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to top, rgba(6, 21, 39, 0.95) 0%, rgba(6, 21, 39, 0.6) 60%, transparent 100%);
    color: var(--white);
    padding: 2rem 1.4rem 1.2rem;
}

.gallery-tag {
    display: inline-block;
    background-color: var(--umg-gold);
    color: var(--umg-navy);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    text-transform: uppercase;
    margin-bottom: 0.4rem;
}

.gallery-overlay h4 {
    font-size: 1.15rem;
    margin-bottom: 0.2rem;
}

.gallery-overlay p {
    font-size: 0.85rem;
    color: #e2e8f0;
}

/* Ajuste responsivo para móviles */
@media (max-width: 768px) {
    .anniversary-banner {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
    }

    .anniversary-badges {
        justify-content: center;
    }

    .gallery-grid-4 {
        grid-template-columns: 1fr;
        grid-auto-rows: 240px;
    }

    .gallery-card.card-featured {
        grid-column: span 1;
        grid-row: span 1;
        height: 280px;
    }
}

/* Contacto y Ubicación */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.contact-info h2 {
    font-family: 'Cinzel', serif;
    color: var(--umg-navy);
    margin-bottom: 0.8rem;
}

.contact-info > p {
    color: var(--text-muted);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.info-cards {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.info-card-item {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    background: var(--bg-light);
    padding: 1.2rem;
    border-radius: 10px;
    border-left: 5px solid var(--umg-navy);
}

.info-icon {
    width: 46px;
    height: 46px;
    background-color: var(--umg-navy);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.icon-red {
    background-color: var(--umg-red);
}

.info-card-item h4 {
    color: var(--umg-navy);
    margin-bottom: 0.25rem;
    font-size: 0.95rem;
}

.info-card-item p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.phone-link {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--umg-red);
    text-decoration: none;
}

/* Formulario */
.contact-form-container {
    background: var(--white);
    padding: 2.2rem;
    border-radius: 14px;
    box-shadow: 0 10px 30px rgba(11, 37, 69, 0.1);
    border-top: 5px solid var(--umg-red);
}

.contact-form h3 {
    color: var(--umg-navy);
    font-size: 1.4rem;
    margin-bottom: 0.3rem;
}

.form-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.2rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--umg-navy);
    margin-bottom: 0.4rem;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    font-family: inherit;
    font-size: 0.95rem;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--umg-shield-blue);
}

.btn-submit {
    width: 100%;
    background-color: var(--umg-red);
    color: var(--white);
    border: none;
    padding: 0.9rem;
    font-size: 1rem;
    font-weight: 700;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-submit:hover {
    background-color: #a7161d;
}

/* Footer */
.footer {
    background-color: var(--umg-navy);
    color: var(--white);
    padding: 2rem 0;
    border-top: 4px solid var(--umg-gold);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.9rem;
}

.footer-left p {
    color: #94a3b8;
    font-size: 0.85rem;
    margin-top: 0.2rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--umg-gold);
    text-decoration: none;
    font-weight: 600;
}

/* Responsivo para Teléfonos */
@media (max-width: 768px) {
    .top-bar-content {
        flex-direction: column;
        text-align: center;
    }

    .menu-toggle {
        display: block;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--white);
        padding: 1.5rem 0;
        box-shadow: 0 10px 15px rgba(0,0,0,0.1);
    }

    .nav-links.active {
        display: flex;
    }

    .univ-title {
        font-size: 1.6rem;
    }

    .campus-title {
        font-size: 1.1rem;
    }

    .plan-left, .plan-right {
        font-size: 1rem;
        padding: 0.6rem 1.1rem;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }

    .gallery-item, .gallery-item.item-large {
        grid-row: auto;
        height: 220px;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
    }
}