:root {
    --navy: #1B2A4A;
    --blue: #3AABDB;
    --cyan: #00BFFF;
    --white: #FFFFFF;
    --gray: #666666;
    --gray-light: #F5F7FA;
    --gray-border: #E0E0E0;
    
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Barlow', sans-serif;
    color: var(--navy);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
}

h2 {
    font-size: 2.5rem;
    color: var(--navy);
    margin-bottom: var(--spacing-2xl);
    text-align: center;
}

h3 {
    font-size: 1.75rem;
    color: var(--navy);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ============= HEADER ============= */
.header {
    background: var(--white);
    padding: var(--spacing-md) 0;
    position: relative;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

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

.logo img {
    height: 50px;
    width: auto;
}

.nav {
    flex: 1;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    justify-content: flex-end;
}

.nav-link {
    color: var(--navy);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--cyan);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--navy);
}

/* ============= HERO CAROUSEL ============= */
.hero {
    position: relative;
    width: 100%;
    overflow: hidden;
    margin-bottom: 0;
    background: #0a0f1e;
}

.heroSwiper {
    width: 100%;
}

.hero-slide {
    width: 100%;
    height: 70vh;
    max-height: 680px;
    min-height: 380px;
    line-height: 0;
}

.hero-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
    display: block;
}

@media (max-width: 768px) {
    .hero-slide {
        height: 56vw; /* mantiene proporción 16:9 en móvil */
        max-height: 420px;
        min-height: 200px;
    }
}

@media (max-width: 480px) {
    .hero-slide {
        height: 56vw;
        max-height: 280px;
        min-height: 160px;
    }
}

.swiper-button-next,
.swiper-button-prev {
    color: var(--cyan);
    background: rgba(27, 42, 74, 0.6);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    transition: var(--transition);
}

.swiper-button-next:hover,
.swiper-button-prev:hover {
    background: rgba(27, 42, 74, 0.9);
}

.swiper-pagination-bullet {
    background: rgba(255, 255, 255, 0.5);
}

.swiper-pagination-bullet-active {
    background: var(--cyan);
}

/* ============= INTRO SECTION ============= */
.intro {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
    text-align: center;
}

.intro h2 {
    font-size: 2rem;
    color: var(--navy);
    margin-bottom: var(--spacing-lg);
}

.intro p {
    font-size: 1.1rem;
    color: var(--gray);
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* ============= BUTTONS ============= */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--cyan);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--blue);
    transform: translateY(-2px);
}

/* ============= ABOUT SECTION ============= */
.about {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
}

.about-content {
    margin-bottom: var(--spacing-3xl);
}

.about-box {
    padding: var(--spacing-xl);
    background: var(--gray-light);
    border-radius: 8px;
    margin-bottom: var(--spacing-xl);
}

.about-box h3 {
    color: var(--cyan);
    margin-bottom: var(--spacing-lg);
}

.mission-vision {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
}

.mission, .vision {
    padding: var(--spacing-xl);
    background: var(--gray-light);
    border-radius: 8px;
}

.mission h3, .vision h3 {
    color: var(--cyan);
    margin-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--cyan);
    padding-bottom: var(--spacing-md);
}

.method-section {
    margin-top: var(--spacing-3xl);
    padding-top: var(--spacing-2xl);
    border-top: 2px solid var(--gray-border);
}

.method-section h3 {
    color: var(--cyan);
    text-align: left;
    margin-bottom: var(--spacing-xl);
    font-size: 1.75rem;
}

.method-text {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.method-text p {
    color: var(--navy);
    margin: 0;
    font-weight: 500;
}

/* ============= ANALYSIS UNIT ============= */
.analysis-unit {
    padding: var(--spacing-3xl) var(--spacing-lg);
    background: #f5f7fa;
    border-top: 2px solid var(--cyan);
    border-bottom: 2px solid var(--cyan);
}

.analysis-unit > h3 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--cyan);
    font-size: 2rem;
}

.intro-text {
    text-align: center;
    color: var(--navy);
    margin-bottom: var(--spacing-xl);
    font-weight: 500;
    font-size: 1.1rem;
}

.specialties-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.specialty-card {
    padding: var(--spacing-lg);
    background: var(--white);
    border: 2px solid var(--cyan);
    border-radius: 8px;
    transition: var(--transition);
    min-height: 150px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.specialty-card h4 {
    color: var(--navy);
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}

.specialty-card p {
    color: var(--navy);
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
}

/* ============= SERVICES SECTION ============= */
.services {
    padding: var(--spacing-2xl) 0;
    background: var(--white);
    border-top: 2px solid var(--gray-border);
    border-bottom: 2px solid var(--gray-border);
}

.services > h2 {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    color: var(--navy);
}

.service-category {
    margin-bottom: var(--spacing-2xl);
}

.service-category h3 {
    color: var(--cyan);
    border-bottom: 3px solid var(--cyan);
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.service-card {
    padding: var(--spacing-lg);
    background: var(--white);
    border-left: 4px solid var(--cyan);
    border-radius: 4px;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateX(10px);
    box-shadow: 0 8px 20px rgba(58, 171, 219, 0.15);
}

.service-card h4 {
    color: var(--navy);
    margin-bottom: var(--spacing-sm);
}

.service-card p {
    color: var(--gray);
    font-size: 0.95rem;
}

/* ============= PRODUCTS SECTION ============= */
.products {
    padding: var(--spacing-2xl) 0;
    background: var(--white);
}

.products > h2 {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.products-gallery {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    max-width: 100%;
    justify-content: flex-start;
}

.product-item {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    max-width: 200px;
    margin: 0 auto;
}

.product-item:hover {
    transform: translateY(-8px);
}

.product-thumbnail {
    position: relative;
    width: 100%;
    max-width: 200px;
    aspect-ratio: 3 / 4;
    overflow: hidden;
    border-radius: 6px;
    background: var(--gray-light);
    border: 1px solid var(--gray-border);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    min-height: 0;
}

.thumb-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.product-label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--navy);
    text-align: center;
}

/* ============= CLIENTS SECTION ============= */
.clients {
    padding: var(--spacing-2xl) 0;
    background: var(--white);
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.client-card {
    padding: var(--spacing-lg);
    border: 2px solid var(--cyan);
    border-radius: 8px;
    text-align: center;
    color: var(--navy);
    font-weight: 600;
}

/* ============= CONTACT SECTION ============= */
.contact {
    padding: var(--spacing-3xl) 0;
    background: var(--gray-light);
}

.contact-content {
    text-align: center;
}

.contact-info {
    margin-bottom: var(--spacing-xl);
}

.contact-info a {
    color: var(--cyan);
    text-decoration: none;
    font-weight: 600;
}

.social-links {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    margin-top: var(--spacing-lg);
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--cyan);
    color: var(--white);
    border-radius: 50%;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--blue);
    transform: translateY(-5px);
}

/* ============= FOOTER ============= */
.footer {
    background: var(--navy);
    color: var(--white);
    padding: var(--spacing-2xl) 0;
    text-align: center;
}

.footer-content {
    text-align: center;
}

.footer-logo img {
    height: 40px;
    margin-bottom: var(--spacing-md);
}

/* ============= RESPONSIVE ============= */
@media (max-width: 1024px) {
    h2 {
        font-size: 2rem;
    }
    
    .mission-vision {
        grid-template-columns: 1fr;
    }
    
    .clients-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: fixed;
        top: 70px;
        left: 0;
        width: 280px;
        max-height: 400px;
        background: var(--white);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
        gap: 0.5rem;
        z-index: 999;
        overflow-y: auto;
        border-radius: 0 0 8px 0;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .menu-close-item {
        display: flex !important;
        justify-content: flex-end;
        margin-bottom: 0.5rem;
        padding-bottom: 0.5rem;
        border-bottom: 1px solid var(--gray-border);
    }
    
    .nav-menu.active .menu-close-item {
        display: flex !important;
    }
    
    #menuClose {
        font-size: 1.5rem;
        color: var(--navy);
        cursor: pointer;
        padding: 0;
        width: 30px;
        height: 30px;
    }
    
    .nav-link {
        padding: 0.75rem 0;
        font-size: 0.95rem;
        display: block;
    }
    
    .nav-link {
        padding: 0.75rem 0;
        font-size: 0.95rem;
    }
    
    .menu-toggle {
        display: flex;
        font-size: 1.2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .intro {
        padding: var(--spacing-2xl) 0;
    }
    
    .intro h2 {
        font-size: 1.5rem;
    }
    
    .intro p {
        font-size: 0.95rem;
    }
    
    .about {
        padding: var(--spacing-2xl) 0;
    }
    
    .mission-vision {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .method-section {
        margin-top: var(--spacing-2xl);
    }
    
    .clients-grid {
        grid-template-columns: 1fr;
    }
    
    .swiper-button-next,
    .swiper-button-prev {
        width: 40px;
        height: 40px;
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-lg: 1rem;
        --spacing-xl: 1.5rem;
        --spacing-2xl: 2rem;
    }
    
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.3rem; }
    h3 { font-size: 1.1rem; }
    
    .header-content {
        padding: var(--spacing-sm) 0;
    }
    
    .logo img {
        height: 40px;
    }
    
    .menu-toggle {
        font-size: 1rem;
    }
    
    .intro {
        padding: var(--spacing-lg) 0;
    }
    
    .intro h2 {
        font-size: 1.3rem;
    }
    
    .intro p {
        font-size: 0.9rem;
    }
    
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .product-item {
        max-width: 150px;
    }
    
    .product-thumbnail {
        max-width: 150px;
    }
    
    .swiper-button-next,
    .swiper-button-prev {
        width: 35px;
        height: 35px;
        font-size: 16px;
    }
    
    .specialty-card {
        min-height: 120px;
    }
    
    .specialty-card h4 {
        font-size: 1rem;
    }
    
    .specialty-card p {
        font-size: 0.85rem;
    }
}