:root {
    --primary: #003b5b;
    --primary-light: #005f87;
    --accent: #0ea5e9;
    --bg-light: #f8fafc;
    --text-dark: #0f172a;
    --text-muted: #64748b;
    --white: #ffffff;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --radius-full: 9999px;
    --radius-lg: 1rem;
    --radius-md: 0.5rem;
}

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

body {
    background: var(--white);
    font-family: 'Outfit', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* HEADER */
header {
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

header.scrolled {
    background: var(--white);
    box-shadow: var(--shadow-md);
    padding: 5px 0;
}

.header-container {
    max-width: 1400px;
    margin: auto;
    padding: 15px 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo img {
    height: 55px;
    width: auto;
    object-fit: contain;
    transition: var(--transition);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.05));
}

.desktop-nav ul {
    display: flex;
    gap: 10px;
}

.desktop-nav ul li a {
    color: var(--text-dark);
    padding: 10px 20px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.desktop-nav ul li a:hover {
    color: var(--primary);
    background: var(--bg-light);
}

/* SUBPAGE HEADER */
.subpage-header {
    background: var(--primary);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 180px 0 100px;
    text-align: center;
    color: var(--white);
    position: relative;
}

.subpage-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 59, 91, 0.7);
    /* Dark blue overlay */
    z-index: 1;
}

.subpage-header h1 {
    position: relative;
    z-index: 2;
    font-size: 56px;
    font-weight: 800;
    letter-spacing: -1px;
    text-transform: uppercase;
    text-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

/* LANGUAGE SELECTOR */
.lang-dropdown {
    position: relative;
}

.lang-drop-btn {
    background: var(--bg-light);
    border: 1px solid rgba(0, 0, 0, 0.05);
    color: var(--text-dark);
    padding: 8px 16px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

.lang-drop-btn:hover {
    background: var(--white);
    box-shadow: var(--shadow-sm);
}

.lang-options {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    margin-top: 10px;
    overflow: hidden;
    min-width: 80px;
}

.lang-option {
    padding: 10px 20px;
    cursor: pointer;
    text-align: center;
    font-weight: 600;
    font-size: 13px;
}

.lang-option:hover {
    background: var(--bg-light);
    color: var(--primary);
}

/* SUSTAINABILITY */
.surd-main {
    padding: 100px 0;
    background: var(--bg-light);
}

.surd-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 80px;
    padding: 0 40px;
}

.surd-left {
    flex: 1;
}

.surd-left img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.surd-right {
    flex: 1;
}

.surd-right h2 {
    font-size: 48px;
    color: var(--primary);
    margin-bottom: 30px;
    line-height: 1.2;
}

.surd-right p {
    font-size: 18px;
    color: var(--text-muted);
}

@media (max-width: 900px) {
    .surd-container {
        flex-direction: column;
        text-align: center;
    }

    .surd-right h2 {
        font-size: 36px;
    }
}

/* HERO SECTION */
.hero {
    height: 100vh;
    width: 100%;
    position: relative;
    overflow: hidden;
}

.heroSwiper {
    width: 100%;
    height: 100%;
}

.heroSwiper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero .overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(0, 0, 0, 0.6), transparent);
    z-index: 10;
}

.hero-content {
    position: absolute;
    top: 50%;
    left: 10%;
    transform: translateY(-50%);
    z-index: 20;
    max-width: 800px;
}

.hero h1.staggered-slogan {
    font-family: 'Bebas Neue', sans-serif;
    color: var(--white);
    line-height: 1.1;
    text-transform: uppercase;
}

.hero h1.staggered-slogan .line-1 {
    font-size: 110px;
    letter-spacing: 5px;
    display: block;
}

.hero h1.staggered-slogan .line-2 {
    font-size: 45px;
    color: var(--accent);
    display: block;
    margin: 10px 0;
}

.hero h1.staggered-slogan .line-3 {
    font-size: 90px;
    display: block;
}

/* SERVICES */
.services {
    padding: 100px 0;
    text-align: center;
}

.services h2 {
    font-size: 48px;
    color: var(--primary);
    margin-bottom: 50px;
    position: relative;
}

.services h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--accent);
    margin: 15px auto 0;
    border-radius: 2px;
}

.service-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    padding: 0 40px;
}

.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.card-content {
    padding: 30px;
    text-align: left;
}

.card-content h3 {
    color: var(--primary);
    font-size: 22px;
    margin-bottom: 15px;
}

.card-content p {
    color: var(--text-muted);
    font-size: 15px;
}

/* GALLERY PAGE */
.gallery-content {
    padding: 150px 0 100px;
    background: var(--bg-light);
}

.gallery-content h2 {
    text-align: center;
    font-size: 42px;
    color: var(--primary);
    margin-bottom: 50px;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 25px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 350px;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

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

.gallery-item:hover img {
    transform: scale(1.1);
}

.item-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 59, 91, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.gallery-item:hover .item-overlay {
    opacity: 1;
}

.item-overlay span {
    color: var(--white);
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    transform: translateY(20px);
    transition: var(--transition);
}

.gallery-item:hover .item-overlay span {
    transform: translateY(0);
}

/* ABOUT PAGE */
.about-content {
    padding: 80px 0;
    text-align: center;
}

.about-content h2 {
    margin-bottom: 20px;
    color: var(--primary);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.about-item {
    background: var(--bg-light);
    padding: 40px;
    border-radius: var(--radius-lg);
    text-align: left;
    transition: var(--transition);
}

.about-item:hover {
    background: var(--white);
    box-shadow: var(--shadow-lg);
}

.about-item h3 {
    color: var(--primary);
    margin-bottom: 15px;
}

/* FAQ */
.help-content {
    padding: 80px 0;
}

.faq {
    max-width: 800px;
    margin: 40px auto 0;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.faq-item {
    background: var(--bg-light);
    padding: 30px;
    border-radius: var(--radius-md);
}

.faq-item h3 {
    color: var(--primary);
    margin-bottom: 10px;
    font-size: 18px;
}

/* BLOG */
.blog-content {
    padding: 80px 0;
}

.blog-posts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.blog-post {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.blog-post h3 {
    padding: 25px 30px 10px;
    color: var(--primary);
}

.blog-post .date {
    padding: 0 30px;
    color: var(--accent);
    font-size: 13px;
    font-weight: 600;
}

.blog-post p {
    padding: 20px 30px;
    color: var(--text-muted);
}

.read-more {
    display: inline-block;
    margin: 0 30px 30px;
    color: var(--primary);
    font-weight: 700;
}

/* CONTACT */
.contact-content {
    padding: 100px 0;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 80px;
}

.contact-item {
    background: var(--bg-light);
    padding: 40px;
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid rgba(0, 0, 0, 0.03);
    transition: var(--transition);
}

.contact-item:hover {
    transform: translateY(-5px);
    background: var(--white);
    box-shadow: var(--shadow-lg);
}

.contact-item h3 {
    color: var(--primary);
    margin-bottom: 10px;
    font-size: 20px;
    text-transform: uppercase;
}

.contact-item p {
    color: var(--text-muted);
    font-weight: 500;
}

.social-section {
    text-align: center;
    margin-bottom: 80px;
    padding: 80px 40px;
    background: var(--primary);
    border-radius: var(--radius-lg);
    color: var(--white);
}

.social-section h3 {
    margin-bottom: 40px;
    font-size: 24px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.social-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 40px;
}

.social-btn {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    padding: 12px 30px;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 14px;
    transition: var(--transition);
}

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

.cta-btn {
    display: inline-block;
    background: var(--accent);
    color: var(--white);
    padding: 18px 45px;
    border-radius: var(--radius-full);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.3);
}

.contact-form {
    max-width: 800px;
    margin: 0 auto;
    background: var(--white);
    padding: 60px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.contact-form h3 {
    text-align: center;
    margin-bottom: 40px;
    color: var(--primary);
    font-size: 28px;
}

.form-group {
    margin-bottom: 25px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    font-size: 14px;
    color: var(--primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-md);
    background: var(--bg-light);
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 4px rgba(0, 59, 91, 0.05);
}

.contact-form .btn {
    width: 100%;
    background: var(--primary);
    color: var(--white);
    padding: 18px;
    border: none;
    border-radius: var(--radius-full);
    font-weight: 700;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
}

.contact-form .btn:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* FOOTER */
.footer {
    background: var(--primary);
    color: var(--white);
    padding: 80px 40px 40px;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.footer-logo img {
    height: 50px;
    margin-bottom: 20px;
    filter: brightness(0) invert(1);
}

.footer-links h3,
.footer-contact h3 {
    margin-bottom: 20px;
    font-size: 18px;
    letter-spacing: 1px;
}

.footer-links ul li {
    margin-bottom: 10px;
}

.footer-links ul li a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

.footer-links ul li a:hover {
    color: var(--white);
    padding-left: 5px;
}

.footer-bottom {
    margin-top: 60px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

/* MOBILE */
.mobile-menu-btn {
    display: none;
    font-size: 24px;
    cursor: pointer;
}

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

    .desktop-nav {
        display: none;
    }

    .hero h1.staggered-slogan .line-1 {
        font-size: 60px;
    }

    .hero h1.staggered-slogan .line-2 {
        font-size: 30px;
    }

    .hero h1.staggered-slogan .line-3 {
        font-size: 50px;
    }
}