/* ===========================
   Reset & Variables
   =========================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --white: #FFFFFF;
    --off-white: #FAFAFA;
    --light-gray: #F5F5F5;
    --gray: #E0E0E0;
    --mid-gray: #BDBDBD;
    --dark-gray: #757575;
    --charcoal: #424242;
    --black: #212121;

    --spacing-xs: 1rem;
    --spacing-sm: 1.5rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;

    --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    color: var(--black);
    background-color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
}

.container-wide {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

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

/* ===========================
   Header
   =========================== */
.header-main {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--white);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    z-index: 1000;
    transition: all 0.3s ease;
}

.header-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    display: flex;
    flex-direction: column;
    transition: opacity 0.3s ease;
}

.brand:hover {
    opacity: 0.7;
}

.brand-name {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--black);
    line-height: 1;
}

.brand-tagline {
    font-size: 0.7rem;
    color: var(--dark-gray);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-top: 0.2rem;
}

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

.footer-logo-main {
    height: 60px;
    width: auto;
    margin: 0 auto 1.5rem;
    display: block;
}

.main-nav {
    display: flex;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-item {
    color: var(--charcoal);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 1rem;
    position: relative;
    transition: color 0.3s ease;
}

.nav-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: var(--black);
    transition: width 0.3s ease;
}

.nav-item:hover,
.nav-item.active {
    color: var(--black);
}

.nav-item:hover::after,
.nav-item.active::after {
    width: 60%;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-toggle span {
    width: 28px;
    height: 3px;
    background-color: var(--black);
    transition: all 0.3s ease;
}

/* ===========================
   Hero Section
   =========================== */
.hero-main {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    margin-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(0,0,0,0.7), rgba(0,0,0,0.3));
}

.hero-content-box {
    position: relative;
    z-index: 10;
    max-width: 800px;
    padding: var(--spacing-lg);
    color: var(--white);
}

.hero-label {
    display: block;
    font-size: 0.9rem;
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: var(--spacing-sm);
    color: var(--gray);
}

.hero-main-title {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--spacing-md);
    letter-spacing: -2px;
}

.hero-text {
    font-size: 1.3rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    color: var(--off-white);
}

.hero-btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    background-color: var(--white);
    color: var(--black);
    font-weight: 600;
    font-size: 1rem;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.hero-btn:hover {
    background-color: var(--black);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* ===========================
   Section Headers
   =========================== */
.section-heading {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--black);
}

.section-heading.center {
    text-align: center;
}

.section-lead {
    font-size: 1.3rem;
    line-height: 1.8;
    color: var(--charcoal);
    max-width: 900px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-lg);
}

.section-subtitle.center {
    text-align: center;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-intro {
    margin-bottom: var(--spacing-xl);
}

/* ===========================
   Image Showcase (Chi Siamo)
   =========================== */
.image-showcase {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
}

.showcase-item {
    position: relative;
    overflow: hidden;
    border-radius: 4px;
    min-height: 400px;
}

.showcase-item.large {
    grid-row: span 2;
    min-height: 600px;
}

.showcase-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.showcase-item:hover img {
    transform: scale(1.08);
}

.showcase-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-md);
    background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
    color: var(--white);
    transform: translateY(100%);
    transition: transform 0.4s ease;
}

.showcase-item:hover .showcase-caption {
    transform: translateY(0);
}

.showcase-caption h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

/* ===========================
   Content Block
   =========================== */
.content-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    align-items: center;
}

.content-left h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    color: var(--black);
}

.content-left p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--charcoal);
}

.content-right img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: 4px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

/* ===========================
   Highlight Box
   =========================== */
.highlight-box {
    background-color: var(--light-gray);
    padding: var(--spacing-lg);
    border-radius: 4px;
    border-left: 4px solid var(--black);
    margin: var(--spacing-xl) 0;
}

.highlight-box h3 {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-sm);
    color: var(--black);
}

.highlight-box p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--charcoal);
}

/* ===========================
   Mission & Vision
   =========================== */
.mission-vision-wrapper {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.mv-block {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.mv-block.reverse {
    grid-template-columns: 1fr 1.2fr;
}

.mv-block.reverse .mv-content {
    order: 1;
}

.mv-block.reverse .mv-image-large {
    order: 2;
}

.mv-image-large {
    width: 100%;
    height: 600px;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.15);
}

.mv-image-large img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.mv-block:hover .mv-image-large img {
    transform: scale(1.05);
}

.mv-content {
    padding: var(--spacing-lg);
}

.mv-content h3 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--black);
}

.mv-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--charcoal);
}

/* ===========================
   Product Lines
   =========================== */
.product-line-section {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--gray);
}

.product-line-section:last-child {
    border-bottom: none;
}

.line-content-wrapper {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.product-line-section.reverse .line-content-wrapper {
    grid-template-columns: 2fr 1fr;
}

.product-line-section.reverse .line-text-box {
    order: 2;
}

.product-line-section.reverse .line-images-wrapper {
    order: 1;
}

.line-text-box {
    padding: var(--spacing-lg);
    background-color: var(--light-gray);
    border-radius: 4px;
    position: sticky;
    top: 120px;
}

.line-header {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--black);
}

.line-header h3 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 0.5rem;
}

.line-desc {
    font-size: 1.1rem;
    color: var(--dark-gray);
    font-weight: 500;
}

.line-description p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--charcoal);
}

.line-images-wrapper {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.line-image-main {
    width: 100%;
    height: 600px;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.12);
}

.line-image-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

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

.line-images-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.line-image-small {
    height: 300px;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.line-image-small img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.line-image-small:hover img {
    transform: scale(1.08);
}


/* ===========================
   Certifications
   =========================== */
.certifications-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.cert-box {
    background-color: var(--white);
    padding: var(--spacing-lg);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 180px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.cert-box:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.cert-box img {
    max-height: 100px;
    width: auto;
}

.sustainability-banner {
    background-color: var(--charcoal);
    color: var(--white);
    padding: var(--spacing-xl);
    text-align: center;
    border-radius: 4px;
    margin-top: var(--spacing-xl);
}

.sustainability-banner h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.sustainability-banner p {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    color: var(--gray);
}

.btn-download {
    display: inline-block;
    padding: 1rem 2.5rem;
    background-color: var(--white);
    color: var(--black);
    font-weight: 600;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.btn-download:hover {
    background-color: var(--black);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

/* ===========================
   Contact Section
   =========================== */
.contact-container {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.contact-image-large {
    width: 100%;
    height: 700px;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.15);
}

.contact-image-large img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.contact-info-box {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-info-box h3 {
    font-size: 2.5rem;
    color: var(--black);
    margin-bottom: var(--spacing-md);
}

.info-group h4 {
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-xs);
}

.info-group p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--charcoal);
}

.info-group a {
    color: var(--black);
    font-weight: 600;
    transition: color 0.3s ease;
}

.info-group a:hover {
    color: var(--dark-gray);
}

.social-links-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.social-links-list a {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--black);
    transition: all 0.3s ease;
    padding: 0.5rem 0;
}

.social-links-list a:hover {
    color: var(--dark-gray);
    transform: translateX(5px);
}

/* ===========================
   Footer
   =========================== */
.main-footer {
    background-color: var(--black);
    color: var(--white);
    padding: var(--spacing-lg) 0;
}

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

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

/* ===========================
   Responsive Design
   =========================== */
@media (max-width: 1200px) {
    .image-showcase {
        grid-template-columns: 1fr 1fr;
    }

    .showcase-item.large {
        grid-column: span 2;
    }

    .line-content-wrapper,
    .product-line-section.reverse .line-content-wrapper {
        grid-template-columns: 1fr;
    }

    .product-line-section.reverse .line-text-box,
    .product-line-section.reverse .line-images-wrapper {
        order: initial;
    }

    .line-text-box {
        position: relative;
        top: 0;
    }

    .line-image-main {
        height: 450px;
    }

    .line-image-small {
        height: 250px;
    }
}

@media (max-width: 968px) {
    .main-nav {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        background-color: var(--white);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        transition: left 0.3s ease;
        padding: var(--spacing-md);
    }

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

    .nav-list {
        flex-direction: column;
        gap: 0;
        width: 100%;
    }

    .nav-item {
        width: 100%;
        padding: var(--spacing-sm);
        text-align: left;
        border-bottom: 1px solid var(--gray);
    }

    .mobile-toggle {
        display: flex;
    }

    .mobile-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }

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

    .mobile-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(8px, -8px);
    }

    .content-block,
    .mv-block,
    .mv-block.reverse,
    .contact-container {
        grid-template-columns: 1fr;
    }

    .mv-block.reverse .mv-content,
    .mv-block.reverse .mv-image-large {
        order: initial;
    }

    .mv-image-large,
    .contact-image-large {
        height: 400px;
    }

    .gallery-main {
        height: 400px;
    }

    .footer-content {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
}

@media (max-width: 640px) {
    .image-showcase {
        grid-template-columns: 1fr;
    }

    .showcase-item.large {
        grid-column: auto;
        min-height: 400px;
    }

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

    .certifications-gallery {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .section-heading {
        font-size: 2rem;
    }
}