/* ============================================
   VARIABLES Y CONFIGURACIÓN GENERAL
   ============================================ */
:root {
    --color-primary: #094266;
    --color-secondary: #417FAB;
    --color-background: #000000;
    --color-text: #ffffff;
    --color-gray: #7A7973;
    --color-white: #ffffff;
    --color-dark-gray: #1a1a1a;
    --color-light-gray: #f5f5f5;

    --font-primary: 'Montserrat', sans-serif;

    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    --spacing-xs: 1rem;
    --spacing-sm: 2rem;
    --spacing-md: 4rem;
    --spacing-lg: 6rem;
    --spacing-xl: 8rem;

    --header-height: 80px;
}

/* ============================================
   RESET Y ESTILOS BASE
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    color: var(--color-text);
    background-color: var(--color-background);
    line-height: 1.6;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    transition: var(--transition-fast);
}

/* ============================================
   UTILIDADES
   ============================================ */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: var(--spacing-lg) 0;
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   HEADER STICKY
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: var(--transition-normal);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Logo */
.logo {
    height: 60px;
    position: relative;
    cursor: pointer;
    display: flex;
    align-items: center;
}

.logo-image {
    height: 100%;
    width: auto;
    max-width: 200px;
    object-fit: contain;
    transition: opacity var(--transition-fast);
}

.logo:hover .logo-image {
    opacity: 0.9;
}

/* Navegación */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    color: var(--color-white);
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition-fast);
    border-bottom: 2px solid transparent;
}

.nav-link:hover {
    color: var(--color-secondary);
    border-bottom-color: var(--color-secondary);
}

.nav-link.active {
    border-bottom-color: var(--color-secondary);
}

.nav-arrow {
    font-size: 0.7rem;
    transition: var(--transition-fast);
}

.nav-item:hover .nav-arrow {
    transform: rotate(180deg);
}

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

.search-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 1.2rem;
    border-radius: 50%;
    transition: var(--transition-fast);
}

.search-btn:hover {
    background-color: var(--color-primary);
    transform: scale(1.1);
}

/* Menú móvil */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 30px;
    height: 30px;
    cursor: pointer;
}

.mobile-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--color-white);
    transition: var(--transition-fast);
}

/* ============================================
   MEGA MENÚ
   ============================================ */
.mega-menu {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: rgba(26, 26, 26, 0.98);
    backdrop-filter: blur(10px);
    padding: 2.5rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

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

.mega-menu-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.mega-menu-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--color-white);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.mega-menu-title::after {
    content: '→';
    color: var(--color-secondary);
}

.mega-menu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.mega-menu-item {
    padding: 1.2rem 1.5rem;
    border-radius: 8px;
    transition: var(--transition-fast);
    cursor: pointer;
    border-left: 3px solid transparent;
}

.mega-menu-item:hover {
    background-color: rgba(65, 127, 171, 0.1);
    transform: translateX(5px);
    border-left-color: var(--color-secondary);
}

.mega-menu-item h4 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0;
    color: var(--color-white);
    transition: var(--transition-fast);
}

.mega-menu-item:hover h4 {
    color: var(--color-secondary);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-background);
    position: relative;
    padding-top: var(--header-height);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 1000px;
    padding: 2rem;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    background: linear-gradient(135deg, var(--color-white) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    color: var(--color-gray);
    margin-bottom: 2rem;
    font-weight: 400;
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero-cta {
    display: inline-flex;
    gap: 1rem;
    animation: fadeInUp 0.8s ease 0.4s backwards;
}

.btn {
    padding: 1rem 2.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 50px;
    transition: var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

.btn-primary:hover {
    background-color: transparent;
    border-color: var(--color-secondary);
    color: var(--color-secondary);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(65, 127, 171, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-white);
}

.btn-secondary:hover {
    background-color: var(--color-white);
    color: var(--color-background);
    transform: translateY(-2px);
}

/* ============================================
   SECCIONES ALTERNAS
   ============================================ */
.alternate-section {
    padding: var(--spacing-lg) 0;
    background-color: var(--color-background);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.alternate-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 4rem;
    align-items: center;
}

.alternate-content.reverse {
    direction: rtl;
}

.alternate-content.reverse > * {
    direction: ltr;
}

.alternate-text {
    padding: 2rem;
}

.alternate-text h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--color-white);
}

.alternate-text p {
    font-size: 1.1rem;
    color: var(--color-gray);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.alternate-image {
    position: relative;
    overflow: hidden;
    border-radius: 16px;
}

.alternate-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.alternate-image:hover img {
    transform: scale(1.05);
}

/* ============================================
   GRID DE TARJETAS
   ============================================ */
.cards-section {
    padding: var(--spacing-lg) 0;
    background-color: var(--color-background);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--color-white);
}

.section-header p {
    font-size: 1.2rem;
    color: var(--color-gray);
    max-width: 700px;
    margin: 0 auto;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.card {
    background-color: rgba(255, 255, 255, 0.03);
    border-radius: 16px;
    overflow: hidden;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
    border: 2px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(65, 127, 171, 0.3);
    border-color: var(--color-secondary);
    background-color: rgba(255, 255, 255, 0.05);
}

.card-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
    background-color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.card:hover .card-image img {
    transform: scale(1.1);
}

.card-content {
    padding: 2rem;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--color-white);
}

.card-description {
    font-size: 1rem;
    color: var(--color-gray);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-secondary);
    font-weight: 600;
    transition: var(--transition-fast);
}

.card-link:hover {
    gap: 1rem;
    color: var(--color-white);
}

/* ============================================
   RECONOCIMIENTOS
   ============================================ */
.recognitions-section {
    padding: var(--spacing-lg) 0;
    background-color: var(--color-background);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.recognitions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    align-items: center;
    justify-items: center;
}

.recognition-item {
    padding: 2rem;
    text-align: center;
    transition: var(--transition-normal);
    opacity: 0.7;
}

.recognition-item:hover {
    opacity: 1;
    transform: scale(1.1);
}

.recognition-item img {
    max-height: 80px;
    margin: 0 auto 1rem;
    filter: grayscale(100%);
    transition: var(--transition-normal);
}

.recognition-item:hover img {
    filter: grayscale(0%);
}

.recognition-item h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-white);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background-color: var(--color-background);
    padding: var(--spacing-md) 0 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-column h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--color-white);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-link {
    color: var(--color-gray);
    font-size: 1rem;
    transition: var(--transition-fast);
    padding: 0.5rem 0;
}

.footer-link:hover {
    color: var(--color-secondary);
    padding-left: 10px;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-copyright {
    color: var(--color-gray);
    font-size: 0.9rem;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    transition: var(--transition-fast);
}

.social-link:hover {
    background-color: var(--color-primary);
    transform: translateY(-3px);
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInFromLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInFromRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
    :root {
        --header-height: 70px;
        --spacing-lg: 4rem;
    }

    .nav-menu {
        gap: 1rem;
    }

    .nav-link {
        font-size: 0.9rem;
        padding: 0.5rem;
    }

    .alternate-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .cards-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 60px;
        --spacing-sm: 1.5rem;
        --spacing-md: 3rem;
        --spacing-lg: 3rem;
    }

    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: -100%;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background-color: rgba(0, 0, 0, 0.98);
        flex-direction: column;
        align-items: flex-start;
        padding: 2rem;
        transition: var(--transition-normal);
        overflow-y: auto;
    }

    .nav-menu.active {
        left: 0;
    }

    .mobile-toggle {
        display: flex;
    }

    .mobile-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

    .mobile-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    .mega-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        padding: 1rem 0;
        background-color: transparent;
        border: none;
        box-shadow: none;
        display: none;
    }

    .nav-item.active .mega-menu {
        display: block;
    }

    .mega-menu-grid {
        grid-template-columns: 1fr;
    }

    .hero {
        min-height: 80vh;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .cards-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .hero-cta {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }
}