/* ==================== ESTILO HARVARD ISTS ==================== */
/* Diseño inspirado en Harvard University con colores ISTS */

/* Importar fuente Inter de Google Fonts */
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap");

/* Reset básico para header */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body,
html {
    margin: 0;
    padding: 0;
    width: 100%;
    overflow-x: hidden;
}

/* Variables específicas para el estilo Harvard */
:root {
    /* Colores ISTS Impactantes */
    --harvard-primary: #00a86b; /* Verde vibrante ISTS */
    --harvard-secondary: #1e3a8a; /* Azul profundo ISTS */
    --harvard-accent: #f59e0b; /* Dorado para destacar */
    --harvard-dark: #0f172a; /* Azul muy oscuro */
    --harvard-light: #f8fafc; /* Blanco roto */

    /* Gradientes impactantes */
    --harvard-gradient: linear-gradient(
        135deg,
        #00a86b 0%,
        #1e3a8a 50%,
        #f59e0b 100%
    );
    --harvard-gradient-reverse: linear-gradient(
        135deg,
        #1e3a8a 0%,
        #00a86b 100%
    );
    --harvard-gradient-accent: linear-gradient(
        135deg,
        #f59e0b 0%,
        #ef4444 100%
    );

    /* Efectos especiales */
    --harvard-glow: 0 0 20px rgba(0, 168, 107, 0.3);
    --harvard-glow-blue: 0 0 20px rgba(30, 58, 138, 0.3);
    --harvard-glow-gold: 0 0 20px rgba(245, 158, 11, 0.3);
}

/* ==================== HEADER HARVARD STYLE ==================== */
.header-top {
    background: transparent;
    color: var(--harvard-light);
    padding: 0.5rem 0;
    font-size: 0.9rem;
    border-bottom: none;
}

.header-notifications {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.notification {
    background: var(--harvard-gradient-accent);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-weight: 600;
    animation: pulse 2s infinite;
}

.notification-link {
    color: var(--harvard-accent);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.notification-link:hover {
    color: white;
    text-shadow: var(--harvard-glow-gold);
}

.header-main {
    background: transparent;
    padding: 1.5rem 0;
    position: relative;
    overflow: hidden;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 2;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: none;
    box-shadow: none;
    transition: var(--transition);
    background: transparent;
    padding: 0.5rem;
}

.logo:hover {
    transform: scale(1.1) rotate(5deg);
    box-shadow: var(--harvard-glow-gold);
}

.institution-name {
    color: white;
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    margin: 0;
    letter-spacing: -0.5px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.search-container {
    position: relative;
}

.search-toggle {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    padding: 0.75rem;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.search-toggle:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.search-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: white;
    border-radius: 10px;
    box-shadow: var(--shadow-xl);
    padding: 1rem;
    min-width: 300px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 1000;
}

.search-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.search-dropdown input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--harvard-border);
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transition);
}

.search-dropdown input:focus {
    outline: none;
    border-color: var(--harvard-primary);
    box-shadow: 0 0 0 3px rgba(0, 168, 107, 0.1);
}

.menu-toggle {
    background: transparent;
    border: none;
    color: white;
    padding: 0.75rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.2rem;
    transition: var(--transition);
    display: none;
}

.menu-toggle:hover {
    background: var(--harvard-secondary);
    transform: scale(1.05);
}

/* ==================== NAVEGACIÓN PRINCIPAL ==================== */
.main-navigation {
    background: var(--harvard-dark);
    padding: 0.2rem 0;
    position: relative;
}

.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    justify-content: center;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: block;
    padding: 0.6rem 1.2rem;
    color: white;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
    position: relative;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-link:hover {
    color: var(--harvard-primary);
    background: transparent;
}

.nav-link:hover::before {
    width: 80%;
}

/* ==================== DROPDOWN MENUS ==================== */
.dropdown-content {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    min-width: 600px;
    box-shadow: var(--shadow-xl);
    border-radius: 0 0 10px 10px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 1000;
}

.nav-item:hover .dropdown-content {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-section {
    padding: 2rem;
    background: linear-gradient(
        135deg,
        rgba(0, 168, 107, 0.7) 0%,
        rgba(30, 58, 138, 0.7) 100%
    );
    color: #ffffff;
    border-radius: 0 0 10px 10px;
    position: relative;
}

.dropdown-section h3 {
    font-size: 1.7rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
    color: #ffffff !important;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    letter-spacing: 0.5px;
}

.dropdown-section p {
    opacity: 1;
    line-height: 1.7;
    font-weight: 600;
    font-size: 1.1rem;
    color: #ffffff !important;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    letter-spacing: 0.3px;
}

.dropdown-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    padding: 2rem;
}

.dropdown-column h4 {
    color: var(--harvard-secondary);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    letter-spacing: 0.3px;
    border-bottom: 2px solid var(--harvard-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.dropdown-column h4 a {
    color: var(--harvard-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.dropdown-column h4 a:hover {
    color: var(--harvard-primary);
}

.dropdown-column ul {
    list-style: none;
    padding: 0;
}

.dropdown-column li {
    margin-bottom: 0.5rem;
}

.dropdown-column a {
    color: #1f2937;
    text-decoration: none;
    padding: 0.5rem 0;
    display: block;
    transition: var(--transition);
    border-radius: 4px;
    padding-left: 0.5rem;
    font-weight: 600;
    font-size: 1rem;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.dropdown-column a:hover {
    color: #fff;
    background: var(--harvard-primary);
    padding-left: 1rem;
    transform: translateX(5px);
    font-weight: 600;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* ==================== HERO SECTION ==================== */
.hero-section {
    min-height: 100vh; /* Cambiado para asegurar la altura completa de la ventana */
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    overflow: hidden;
    margin-bottom: 4rem;
    margin-top: 0;
    padding-top: 0; /* Eliminado el padding de 120px */
}

.hero-background {
    position: absolute; /* REVERTIDO para el efecto de capa */

    top: 0;

    left: 0;

    width: 100%;

    height: 100%;

    background: var(--harvard-dark);

    z-index: 1;
}

.hero-overlay {
    position: absolute; /* REVERTIDO para el efecto de capa */

    top: 0;

    left: 0;

    width: 100%;

    height: 100%;

    background: none; /* Eliminado el gradiente de color */

    z-index: 2;

    display: flex;

    align-items: center;

    justify-content: center;
}

.hero-content {
    text-align: center;

    z-index: 3;

    position: absolute; /* Cambiado para centrado robusto */

    top: 50%;

    left: 50%;

    transform: translate(-50%, -50%);

    max-width: 800px;

    padding: 2rem;

    width: 90%; /* Asegurar que no se desborde en pantallas pequeñas */
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    line-height: 1.4;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-actions .btn {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.hero-actions .btn-primary {
    background: var(--harvard-accent);
    color: white;
    border: 2px solid var(--harvard-accent);
}

.hero-actions .btn-primary:hover {
    background: transparent;
    color: var(--harvard-accent);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
}

.hero-actions .btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.hero-actions .btn-secondary:hover {
    background: white;
    color: var(--harvard-primary);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.3);
}

/* Responsive Hero */
@media (max-width: 768px) {
    .hero-section {
        height: 70vh;
        min-height: 500px;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .hero-actions .btn {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-content {
        padding: 1rem;
    }
}

/* ==================== BOTONES ==================== */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transition: var(--transition);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--harvard-gradient);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: white;
}

.btn-secondary {
    background: var(--harvard-secondary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
    background: var(--harvard-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: white;
}

.btn-outline {
    background: transparent;
    color: var(--harvard-primary);
    border: 2px solid var(--harvard-primary);
}

.btn-outline:hover {
    background: var(--harvard-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ==================== ANIMACIONES ==================== */
@keyframes pulse {
    0%,
    100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .nav-menu {
        display: none;
    }

    .institution-name {
        font-size: 1.2rem;
    }

    .logo {
        width: 60px;
        height: 60px;
    }

    .dropdown-content {
        min-width: 300px;
    }

    .dropdown-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }

    .institution-name {
        font-size: 1rem;
        text-align: center;
    }

    .header-actions {
        justify-content: center;
    }
}

/* ==================== HEADER MEJORADO ==================== */

/* Header Top Bar with Logo and Brand */
.header-top-bar {
    background: transparent;
    padding: 0.2rem 0;
    position: relative;
    z-index: 100;
    width: 100%;
}

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

.brand-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
    transition: all 0.3s ease;
}

.brand-link:hover {
    transform: translateY(-2px);
}

.header-logo {
    width: 40px;
    height: 40px;
    object-fit: contain;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 10;
    margin: 0;
    transform: scale(2) translateY(15px);
}

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

.brand-text {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.institution-name {
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--harvard-dark);
    margin: 0;
    line-height: 1.3;
    font-family:
        "Inter",
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
    letter-spacing: -0.5px;
}

.institution-tagline {
    font-size: 0.95rem;
    color: #64748b;
    margin: 0;
    font-weight: 400;
    letter-spacing: 0.2px;
}

/* Main Navigation */
.main-navigation {
    background: transparent;
    position: relative;
    z-index: 99;
    padding: 0;
    width: 100%;
}

.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 0;
    justify-content: center;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: block;
    padding: 0.65rem 1.25rem;
    color: #ffffff;
    text-decoration: none;
    font-weight: 700;
    font-size: 1rem;
    transition: all 0.3s ease;
    position: relative;
    letter-spacing: 0.2px;
    font-family:
        "Inter",
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
}

.nav-link::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    background: transparent;
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link:hover,
.nav-item:hover .nav-link {
    color: var(--harvard-primary);
    background: transparent;
}

.nav-link:hover::after,
.nav-item:hover .nav-link::after {
    width: 80%;
}

/* Dropdown Styles */
.dropdown-content {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translate(
        -50%,
        -80px
    ); /* Centra horizontalmente y sube 80px para alinearse con el logo */
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    min-width: 600px;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 2.5rem;
    margin-top: 1rem;
    z-index: 1000;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.nav-item.dropdown:hover .dropdown-content {
    opacity: 1;
    visibility: visible;
    margin-top: 0.5rem;
    transform: translate(
        -50%,
        -85px
    ); /* Sube para alinearse con el logo al hacer hover */
}

.dropdown-section h3 {
    color: #000000 !important;
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    font-weight: 700;
    font-family:
        "Inter",
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.dropdown-section p {
    color: #000000 !important;
    font-size: 0.95rem;
    margin-bottom: 2rem;
    line-height: 1.7;
    font-weight: 500;
    letter-spacing: 0.2px;
}

.dropdown-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.dropdown-column h4 {
    color: #000000 !important;
    font-size: 1.1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    font-weight: 600;
    font-family:
        "Inter",
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
    letter-spacing: -0.3px;
    border-bottom: 2px solid rgba(0, 0, 0, 0.2);
}

.dropdown-column p {
    font-size: 0.9rem;
    color: #000000 !important;
    margin-bottom: 1.25rem;
    line-height: 1.6;
    font-weight: 500;
}

.dropdown-column ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.dropdown-column li {
    margin-bottom: 0.3rem;
}

.dropdown-column a {
    color: #000000 !important;
    text-decoration: none;
    font-size: 0.95rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: block;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-family:
        "Inter",
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
    font-weight: 600;
    letter-spacing: 0.1px;
    position: relative;
}

.dropdown-column a::before {
    content: "→";
    position: absolute;
    left: 0.5rem;
    opacity: 0;
    transition: all 0.3s ease;
    color: var(--harvard-primary);
}

.dropdown-column a:hover {
    background: rgba(0, 168, 107, 0.08);
    color: var(--harvard-primary);
    padding-left: 2rem;
    transform: translateX(4px);
}

.dropdown-column a:hover::before {
    opacity: 1;
    left: 1rem;
}

/* Header Sticky and Hidden States */
.header {
    transition:
        transform 0.3s ease,
        background-color 0.3s ease,
        box-shadow 0.3s ease; /* Transiciones mejoradas */
    background: transparent; /* Transparente por defecto */
    position: absolute; /* Flotante por defecto */
    width: 100%;
    left: 0;
    right: 0;
    top: 0;
    z-index: 1000; /* z-index necesario para encabezados flotantes */
}

.header-sticky {
    position: fixed;
    top: 0;
    z-index: 1000;
    background: rgba(
        255,
        255,
        255,
        0.85
    ); /* Fondo sólido ligeramente transparente */
    backdrop-filter: blur(15px);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.header-hidden {
    transform: translateY(-100%);
}

/* Mobile Menu Toggle Button */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 101;
}

.mobile-menu-toggle span {
    width: 28px;
    height: 3px;
    background: var(--harvard-dark);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.mobile-menu-toggle:hover span {
    background: var(--harvard-primary);
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-content {
    position: absolute;
    right: 0;
    top: 0;
    width: 85%;
    max-width: 400px;
    height: 100vh;
    background: white;
    box-shadow: -5px 0 30px rgba(0, 0, 0, 0.3);
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
}

.mobile-menu-overlay.active .mobile-menu-content {
    transform: translateX(0);
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    border-bottom: 1px solid #e5e7eb;
    background: #f8fafc;
}

.mobile-logo {
    width: 50px;
    height: 50px;
    object-fit: contain;
}

.mobile-menu-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--harvard-dark);
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.mobile-menu-close:hover {
    background: var(--harvard-primary);
    color: white;
    transform: rotate(90deg);
}

.mobile-nav {
    padding: 1rem 0;
}

.mobile-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mobile-nav-item > a,
.mobile-nav-item > .mobile-nav-label {
    display: block;
    padding: 1rem 1.5rem;
    color: #ffffff;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.05rem;
    border-bottom: 1px solid #e5e7eb;
    transition: all 0.3s ease;
    position: relative;
    cursor: pointer;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
}

.mobile-nav-item > a::before,
.mobile-nav-item > .mobile-nav-label::before {
    content: "›";
    position: absolute;
    left: 0.5rem;
    opacity: 0;
    transition: all 0.3s ease;
}

.mobile-nav-item > a:hover,
.mobile-nav-item > .mobile-nav-label:hover {
    background: var(--harvard-light);
    color: var(--harvard-primary);
    padding-left: 2rem;
}

.mobile-nav-item > a:hover::before,
.mobile-nav-item > .mobile-nav-label:hover::before {
    opacity: 1;
    left: 1rem;
}

.mobile-submenu {
    background: #f9fafb;
    padding: 0.5rem 0;
}

.mobile-submenu li a {
    display: block;
    padding: 0.75rem 2rem 0.75rem 3rem;
    color: #4b5563;
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.mobile-submenu li a:hover {
    background: white;
    color: var(--harvard-primary);
    padding-left: 3.5rem;
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

@keyframes fadeOutUp {
    from {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    to {
        opacity: 0;
        transform: translateX(-50%) translateY(-20px);
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .dropdown-content {
        min-width: 500px;
    }

    .nav-link {
        padding: 1rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .main-navigation {
        display: none;
    }

    .institution-name {
        font-size: 1.2rem;
    }

    .header-logo {
        width: 50px;
        height: 50px;
    }

    .institution-tagline {
        font-size: 0.8rem;
    }

    .header-top-bar {
        padding: 0.75rem 0;
    }
}

@media (max-width: 480px) {
    .institution-name {
        font-size: 1rem;
    }

    .institution-tagline {
        display: none;
    }

    .header-logo {
        width: 35px;
        height: 35px;
    }

    .mobile-menu-content {
        width: 90%;
    }
}

/* ==================== HERO CAROUSEL ==================== */
.hero-carousel-section {
    position: relative;
    width: 100%;
    overflow: hidden;
    padding-top: 0;
    margin-top: 0;
    height: 100vh;
    min-height: 100vh;
}

.hero-carousel {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 100vh;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition:
        opacity 1s ease-in-out,
        visibility 1s ease-in-out;
}

.hero-slide.active {
    opacity: 1;
    visibility: visible;
    z-index: 1;
}

.hero-slide .hero-background {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-slide .hero-overlay {
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(0, 0, 0, 0.5) 0%,
        rgba(0, 0, 0, 0.3) 100%
    );
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    position: relative;
}

.hero-slide .hero-overlay .container {
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    width: 100%;
    position: absolute;
    top: 65%;
    left: 40%;
    transform: translate(-50%, -50%);
}

.hero-slide .hero-content {
    text-align: center;
    color: white;
    max-width: 900px;
    padding: 2rem;
    margin: 0 auto;
    width: 100%;
}

.hero-slide .hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    text-shadow: 3px 3px 10px rgba(0, 0, 0, 0.7);
    line-height: 1.2;
    animation: fadeInUp 1s ease-out;
}

.hero-slide .hero-subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 2rem;
    text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.6);
    line-height: 1.5;
    animation: fadeInUp 1s ease-out 0.2s backwards;
}

.hero-slide .hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    animation: fadeInUp 1s ease-out 0.4s backwards;
}

/* Controles del Carrusel */
.hero-carousel-control {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    font-size: 3rem;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-carousel-control:hover {
    background: rgba(0, 168, 107, 0.8);
    transform: translateY(-50%) scale(1.1);
}

.hero-carousel-control.prev {
    left: 2rem;
}

.hero-carousel-control.next {
    right: 2rem;
}

/* Indicadores */
.hero-carousel-indicators {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.75rem;
    z-index: 10;
}

.hero-carousel-indicators .indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    border: 2px solid white;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0;
}

.hero-carousel-indicators .indicator:hover {
    background: rgba(255, 255, 255, 0.8);
    transform: scale(1.2);
}

.hero-carousel-indicators .indicator.active {
    background: var(--harvard-primary);
    border-color: var(--harvard-primary);
    width: 40px;
    border-radius: 6px;
}

/* Animaciones */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .hero-carousel-section {
        height: 100vh;
        min-height: 100vh;
    }

    .hero-carousel {
        height: 100vh;
        min-height: 100vh;
    }

    .hero-slide .hero-title {
        font-size: 2rem;
    }

    .hero-slide .hero-subtitle {
        font-size: 1.1rem;
    }

    .hero-carousel-control {
        width: 45px;
        height: 45px;
        font-size: 2rem;
    }

    .hero-carousel-control.prev {
        left: 1rem;
    }

    .hero-carousel-control.next {
        right: 1rem;
    }

    .hero-slide .hero-actions {
        flex-direction: column;
        gap: 0.75rem;
    }

    .hero-carousel-indicators {
        bottom: 1rem;
    }

    .hero-slide .hero-content {
        padding: 1rem;
        width: 100%;
        max-width: 100%;
    }

    .hero-slide .hero-overlay .container {
        width: 100%;
        padding: 0 1rem;
    }
}