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

/* Global Styles */
:root {
    /* Main Colors */
    --primary-color: #E31837;
    --secondary-color: #2D1B69;
    --shell-yellow: #FBBA00;
    --shell-blue: #005DA8;
    --accent-color: #4CAF50;
    
    /* Text Colors */
    --text-color: #1f2937;
    --light-text: #6b7280;
    
    /* Background Colors */
    --background: #ffffff;
    --light-background: #fff5f5;
    --bg-color: #F5F5F5;
    --card-bg: #FFFFFF;
    
    /* Border & Shadow */
    --border-color: #fecaca;
    --header-shadow: rgba(0, 0, 0, 0.15);
    --card-shadow: rgba(0, 0, 0, 0.1);
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #1E88E5 0%, #1565C0 100%);
    --gradient-secondary: linear-gradient(135deg, #FF9800 0%, #F57C00 100%);
    --gradient-accent: linear-gradient(135deg, #FBBA00 0%, #FBBA00 100%);
    
    /* Interactive */
    --interactive-color: var(--shell-blue);
    --border-radius: 12px;
    
    /* Technical Documentation & Comparison Table Variables */
    --doc-card-bg: linear-gradient(145deg, #ffffff 0%, #f8f9fa 100%);
    --doc-card-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    --doc-card-hover-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
    --doc-icon-bg: linear-gradient(135deg, var(--shell-blue) 0%, #0064b0 100%);
    --doc-icon-color: #ffffff;
    --table-header-bg: linear-gradient(135deg, var(--shell-blue) 0%, #0064b0 100%);
    --table-row-hover: rgba(0, 93, 168, 0.05);
    --table-border: 1px solid #e2e8f0;
}

[data-theme="dark"] {
    --text-color: #e5e7eb;
    --light-text: #9ca3af;
    --background: #111827;
    --light-background: #1f2937;
    --border-color: #374151;
    --header-shadow: rgba(0, 0, 0, 0.5);
    --card-shadow: rgba(0, 0, 0, 0.3);
    --secondary-color: var(--shell-yellow);
    --interactive-color: var(--shell-yellow);
    
    /* Dark Theme Technical Documentation & Comparison Table Variables */
    --doc-card-bg: linear-gradient(145deg, #2d3748 0%, #1a202c 100%);
    --doc-card-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    --doc-card-hover-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
    --doc-icon-bg: linear-gradient(135deg, var(--shell-yellow) 0%, #d97706 100%);
    --doc-icon-color: #1a202c;
    --table-header-bg: linear-gradient(135deg, var(--shell-yellow) 0%, #d97706 100%);
    --table-row-hover: rgba(251, 186, 0, 0.05);
    --table-border: 1px solid #4a5568;
}

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
    position: relative;
    overflow-y: auto;
}

.container {
    max-width: 1500px;
    margin: 0 auto;
    padding: 0 30px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
}

h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    text-align: center;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

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

.btn-primary:hover {
    background-color: var(--interactive-color);
    filter: brightness(1.1);
    box-shadow: 0 5px 15px rgba(0, 93, 168, 0.3);
}

.btn-secondary {
    background-color: var(--light-background);
    color: var(--text-color);
}

.btn-secondary:hover {
    background-color: var(--border-color);
}

/* Header */
.header {
    padding: 1.2rem 0;
    background-color: var(--light-background);
    box-shadow: 0 2px 8px var(--header-shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.header.scrolled {
    padding: 0.8rem 0;
    background-color: var(--background);
    box-shadow: 0 4px 12px var(--header-shadow);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.logo {
    display: flex;
    align-items: center;
    margin-right: 2rem;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.logo-img {
    height: 50px;
    width: auto;
    transition: all 0.3s ease;
}

.header.scrolled .logo-img {
    height: 45px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    margin-right: auto;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    font-size: 1.1rem;
    position: relative;
    padding: 0.5rem 0;
    transition: all 0.3s ease;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--interactive-color);
    transition: width 0.3s ease;
}

.nav-links a:hover {
    color: var(--interactive-color);
}

.nav-links a:hover::after {
    width: 100%;
}

.right-section {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-left: auto;
}

.contact-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-right: 2rem;
    border-right: 1px solid var(--border-color);
}

.contact-info i {
    font-size: 1.2rem;
    color: var(--interactive-color);
    transition: transform 0.3s ease;
}

.contact-info:hover i {
    transform: scale(1.1);
}

.partner-logo {
    display: flex;
    align-items: center;
    padding-right: 2rem;
    transition: transform 0.3s ease;
}

.partner-logo:hover {
    transform: scale(1.05);
}

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

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

/* Mobile header optimizations */
@media (max-width: 1120px) {
    .header {
        padding: 0.8rem 1rem;
    }
    
    .nav {
        display: flex;
        flex-wrap: nowrap;
        align-items: center;
        justify-content: space-between;
        position: relative;
    }
    
    .logo {
        margin: 0;
        padding: 0;
        flex: 0 0 auto;
        order: 1;
    }
    
    .logo-img {
        height: 40px;
        width: auto;
    }
    
    .right-section {
        display: flex;
        align-items: center;
        margin: 0;
        padding: 0;
        gap: 1rem;
        width: auto;
        order: 2;
        flex: 0 1 auto;
    }
    
    .right-section .contact-info {
        display: none;
    }
    
    .partner-logo {
        padding: 0;
        margin: 0;
    }
    
    .partner-logo .logo-img {
        height: 40px;
        width: auto;
    }
    
    .menu-toggle {
        display: block;
        position: static;
        margin: 0;
        padding: 5px;
        order: 3;
        flex: 0 0 auto;
        z-index: 2000;
        background: transparent;
        border: none;
        cursor: pointer;
    }
    
    .header-controls {
        position: fixed;
        top: auto;
        bottom: 20px;
        right: 20px;
        z-index: 1900;
        background: var(--background);
        padding: 1rem;
        border-radius: 12px;
        box-shadow: 0 4px 12px var(--header-shadow);
    }
    
    .nav-links {
        position: fixed;
        top: 60px;
        left: -100%;
        width: 80%;
        height: calc(100vh - 60px);
        background-color: var(--background);
        display: flex;
        flex-direction: column;
        padding: 2rem;
        margin: 0;
        z-index: 1800;
        box-shadow: 0 5px 15px var(--card-shadow);
        transition: left 0.3s ease;
        overflow-y: auto;
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .nav-links a {
        font-size: 1.2rem;
        padding: 1rem 0;
    }
    
    .header .container {
        position: relative;
        padding: 0;
    }
}

@media (max-width: 480px) {
    .logo-img, 
    .partner-logo .logo-img {
        height: 35px;
    }
    
    .header-controls {
        padding: 0.8rem;
    }
}

.contact-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding-right: 1.5rem;
    border-right: 1px solid var(--border-color);
}

.partner-logo {
    display: flex;
    align-items: center;
    padding-right: 1.5rem;
}

.partner-logo .logo-img {
    height: 60px;
    width: auto;
}

/* Hero Section */
.hero {
    position: relative;
    height: 66vh;
    min-height: 400px;
    overflow: hidden;
    margin-top: 50px;
}

.slideshow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

.slide.active {
    opacity: 1;
}

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

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    text-align: center;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    color: white;
}

.hero h1 {
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

/* Fade Animation */
.fade {
    animation-name: fade;
    animation-duration: 1.5s;
}

@keyframes fade {
    from {opacity: 0.4}
    to {opacity: 1}
}

/* Products Section */
.products {
    padding: 4rem 0;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.product-image {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    margin-bottom: 1.5rem;
}

.product-main-img,
.product-hover-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transition: all 0.3s ease-in-out;
}

.product-main-img {
    opacity: 0;
    object-fit: cover;
}

.product-hover-img {
    width: 70%;
    height: auto;
    object-fit: contain;
    position: relative;
    z-index: 2;
    border-radius: 20px;
    padding: 10px;
}

.product-card:hover .product-main-img {
    opacity: 0.8;
}

.product-card:hover .product-hover-img {
    transform: scale(0.9);
}

.product-card {
    background: var(--background);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    position: relative;
    padding: 1.5rem;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.product-details {
    padding: 1.5rem;
}

.product-specs {
    list-style: none;
    margin: 1rem 0;
}

.product-specs li {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.product-price {
    margin: 1rem 0;
}

.price {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

.unit {
    color: var(--light-text);
}

.detail-link {
    color: var(--primary-color);
    cursor: pointer;
    transition: color 0.3s ease;
}

.detail-link:hover {
    color: var(--interactive-color);
}

.product-details h3 {
    color: var(--interactive-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

[data-theme="dark"] .product-details h3 {
    color: var(--shell-yellow);
}

/* Features Section */
.features {
    padding: 4rem 0;
    background-color: var(--light-background);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--background);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.5s ease;
    position: relative;
    overflow: hidden;
    transform: translateY(50px);
    opacity: 0;
}

.feature-card.reveal {
    transform: translateY(0);
    opacity: 1;
}

.feature-card:hover {
    transform: translateY(-10px);
}

.icon-wrapper {
    width: 200px;
    height: 100px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: all 0.5s ease;
}

.icon-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: all 0.5s ease;
}

.feature-card:hover .icon-wrapper img {
    transform: scale(1.1);
}

.feature-card h3 {
    color: var(--text-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    position: relative;
    padding-bottom: 1rem;
}

.feature-card h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background: var(--interactive-color);
    transition: width 0.3s ease;
}

.feature-card:hover h3::after {
    width: 100px;
}

.feature-card p {
    color: var(--light-text);
    font-size: 1rem;
    line-height: 1.6;
    margin: 0;
}

/* Dark mode adjustments */
[data-theme="dark"] .feature-card {
    background: var(--light-background);
}

/* Responsive design */
@media (max-width: 1200px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin-left: auto;
        margin-right: auto;
    }

    .why-choose-us {
        padding: 4rem 0;
    }

    .feature-card {
        padding: 2rem 1.5rem;
    }

    .icon-wrapper {
        width: 150px;
        height: 75px;
    }
}

@media (max-width: 480px) {
    .icon-wrapper {
        width: 120px;
        height: 60px;
    }
}

/* How It Works Section */
.how-it-works {
    padding: 4rem 0;
}

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

.step {
    text-align: center;
    padding: 2rem;
}

.step-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Testimonials Section */
.testimonials {
    padding: 4rem 0;
    background-color: var(--light-background);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.testimonial-card {
    background: var(--background);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px var(--card-shadow);
}

.testimonial-author {
    margin-top: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.name {
    font-weight: 600;
}

.platform {
    color: var(--light-text);
}

/* FAQ Section */
.faq {
    padding: 4rem 0;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.faq-item {
    padding: 1.5rem;
    background: var(--light-background);
    border-radius: 12px;
}

.faq-item h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

/* Footer */
.footer {
    position: relative;
    z-index: 2;
    background-color: var(--background);
    padding: 4rem 0;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.company-brand {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.shell-brand {
    display: flex;
    align-items: center;
    width: 100%;
}

.footer-logo {
    height: 60px;
    width: auto;
}

.shell-distributor-logo {
    height: 60px;
    width: auto;
}

.company-name {
    font-size: 1.2rem;
    color: var(--shell-blue);
    font-weight: 700;
}

[data-theme="dark"] .company-name {
    color: var(--shell-yellow);
}

.header-top .contact-number i,
.header-top .contact-email i {
    color: var(--shell-blue);
    margin-right: 5px;
}

[data-theme="dark"] .header-top .contact-number i,
[data-theme="dark"] .header-top .contact-email i {
    color: var(--shell-yellow);
}

.footer-contact,
.footer-links {
    padding-left: 0rem;
}

.footer h3 {
    color: var(--text-color);
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    color: var(--text-color);
}

.contact-item i {
    color: var(--text-color);
    font-size: 1.1rem;
    margin-top: 0.25rem;
}

.contact-item span {
    line-height: 1.5;
}

.useful-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.useful-links a {
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.useful-links a:hover {
    color: var(--interactive-color);
}

/* Dark mode adjustments */
[data-theme="dark"] .footer {
    background-color: var(--background);
    border-top-color: var(--border-color);
}

/* Responsive Design for Footer */
@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
    }
    
    .footer-brand {
        grid-column: span 2;
        align-items: center;
    }

    .company-brand, .shell-brand {
        justify-content: center;
        text-align: center;
    }

    .footer-contact,
    .footer-links {
        padding-left: 0;
    }
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-brand {
        grid-column: span 1;
        align-items: center;
    }

    .company-brand {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .shell-brand {
        width: 100%;
        justify-content: center;
    }
    
    .shell-distributor-logo {
        width: 100%;
        height: auto;
        max-width: 250px;
        object-fit: contain;
    }
    
    .footer-contact,
    .footer-links {
        text-align: center;
        padding-left: 0;
    }
    
    .contact-info-list {
        align-items: center;
    }
    
    .contact-item {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .footer {
        padding: 2rem 0;
    }
    
    .footer-logo,
    .shell-distributor-logo {
        height: 50px;
    }

    .company-name {
        font-size: 1rem;
    }
}

/* Responsive Design */
@media (max-width: 1600px) {
    .container {
        max-width: 1400px;
    }
}

@media (max-width: 1366px) {
    .container {
        max-width: 1200px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .nav-links {
        display: none;
    }

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

    .footer-links {
        grid-template-columns: 1fr;
    }

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

    .product-grid {
        grid-template-columns: repeat(1, 1fr);
        max-width: 500px;
        margin-left: auto;
        margin-right: auto;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }
}

/* Header Right Section */
.right-section {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-left: auto;
}

.contact-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding-right: 1.5rem;
    border-right: 1px solid var(--border-color);
}

.partner-logo {
    display: flex;
    align-items: center;
    padding-right: 1.5rem;
}

.partner-logo .logo-img {
    height: 60px;
    width: auto;
}

/* Xóa phần background trắng */
.car-image::before {
    display: none;
}

/* Tạo một container tròn cho logo */
.car-image::after {
    display: none;
}

/* Process Section */
.process {
    padding: 4rem 0;
}

.sub-products {
    list-style: none;
    margin: 0.5rem 0;
    padding-left: 1rem;
    font-size: 0.9rem;
}

.sub-products li {
    margin-bottom: 0.3rem;
    color: var(--light-text);
}

.product-specs > li {
    margin-bottom: 1rem;
}

.product-specs > li:last-child {
    margin-bottom: 0;
}

.product-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
}

.detail-btn {
    padding: 8px 16px;
    font-size: 0.9rem;
}

/* Popup Styles */
.popup-overlay {
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    visibility: hidden;
    transition: all 0.3s ease;
}

.popup-overlay.active {
    visibility: visible;
    background-color: rgba(0, 0, 0, 0.5);
}

.popup {
    background: var(--background);
    padding: 2rem;
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    position: relative;
    box-shadow: 0 4px 6px var(--card-shadow);
    opacity: 0;
    transform: scale(0.7);
    transition: all 0.3s ease;
}

.popup-overlay.active .popup {
    opacity: 1;
    transform: scale(1);
}

.popup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.popup-header h3 {
    margin: 0;
    color: var(--primary-color);
}

.close-popup {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-color);
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color 0.3s ease;
}

.close-popup:hover {
    background-color: var(--light-background);
    color: var(--primary-color);
}

.popup-content .sub-products {
    list-style: none;
    margin: 0;
    padding: 0;
}

.popup-content .sub-products li {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-color);
    font-size: 1rem;
}

.popup-content .sub-products li:last-child {
    border-bottom: none;
}

/* Header Controls */
.header-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: 1rem;
}

/* Language Switcher */
.language-switcher {
    position: relative;
    height: 40px;
}

.lang-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    background: var(--background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px var(--card-shadow);
}

.lang-btn:hover {
    background: var(--background);
    border-color: var(--interactive-color);
}

.lang-flag {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    object-fit: cover;
}

.lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    background: var(--background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.5rem;
    min-width: 150px;
    box-shadow: 0 4px 6px var(--card-shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1002;
}

.language-switcher:hover .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    text-decoration: none;
    color: var(--text-color);
    transition: background-color 0.3s ease;
}

.lang-option:hover {
    background-color: var(--interactive-color);
    color: white;
}

/* Theme Switcher */
.theme-switcher {
    display: flex;
    align-items: center;
}

.theme-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    background: var(--background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px var(--card-shadow);
}

.theme-btn:hover {
    background: var(--background);
    border-color: var(--interactive-color);
}

.theme-btn i {
    font-size: 1rem;
    color: var(--text-color);
}

/* Dark mode adjustments */
[data-theme="dark"] {
    background-color: var(--background);
}

[data-theme="dark"] .header {
    background-color: var(--light-background);
    box-shadow: 0 2px 8px var(--header-shadow);
}

[data-theme="dark"] .product-card,
[data-theme="dark"] .feature-card,
[data-theme="dark"] .testimonial-card,
[data-theme="dark"] .popup {
    background: var(--light-background);
    box-shadow: 0 4px 6px var(--card-shadow);
}

[data-theme="dark"] .footer {
    background-color: var(--background);
    border-top-color: var(--border-color);
}

[data-theme="dark"] .lang-btn,
[data-theme="dark"] .theme-btn,
[data-theme="dark"] .lang-dropdown {
    background: var(--background);
    border-color: var(--border-color);
}

[data-theme="dark"] .lang-btn:hover,
[data-theme="dark"] .theme-btn:hover {
    background: var(--light-background);
    border-color: var(--interactive-color);
}

[data-theme="dark"] .lang-option:hover {
    background-color: var(--interactive-color);
    color: white;
}

/* Contact CTA Section */
.contact-cta {
    padding: 4rem 0;
    background-color: var(--light-background);
}

.cta-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.cta-text {
    padding-right: 2rem;
}

.cta-text h2 {
    font-size: 2.8rem;
    color: #005DA8;
    text-align: left;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.cta-text p {
    font-size: 1.5rem;
    color: #005DA8;
    margin-bottom: 1rem;
}

.cta-text {
    display: block;
    font-size: 1.2rem;
    color: #005DA8;
    font-weight: 700;
    margin-top: 2rem;
}

.signature {
    display: block;
    font-size: 1.2rem;
    color: #FBBA00;
    font-weight: 700;
    margin-top: 2rem;
}

.cta-image {
    position: relative;
    height: 500px;
    border-radius: 12px;
    overflow: hidden;
    background-image: url('../images/industrial.jpg');
    background-size: cover;
    background-position: center;
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.overlay-content {
    color: white;
    text-align: center;
    max-width: 400px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.overlay-content h3 {
    font-size: 2rem;
    margin-bottom: 2rem;
    line-height: 1.3;
}

.company-info {
    margin-bottom: 2rem;
}

.company-info p {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    line-height: 1.4;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
}

/* Responsive Design for CTA Section */
@media (max-width: 1024px) {
    .cta-content {
        gap: 2rem;
    }

    .cta-text h2 {
        font-size: 2.4rem;
    }
}

@media (max-width: 768px) {
    .contact-info {
        display: none;
    }
    
    .partner-logo {
        display: none;
    }

    .cta-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .cta-text {
        padding-right: 0;
        text-align: center;
    }

    .cta-text h2 {
        text-align: center;
        font-size: 2rem;
    }

    .cta-image {
        height: 400px;
    }

    .header-controls {
        gap: 0.25rem;
    }
}

@media (max-width: 480px) {
    .contact-cta {
        padding: 2rem 0;
    }

    .cta-text h2 {
        font-size: 1.8rem;
    }

    .cta-image {
        height: 350px;
    }

    .overlay-content h3 {
        font-size: 1.6rem;
    }

    .company-info p {
        font-size: 1rem;
    }
}

/* Update language button text color in dark mode */
[data-theme="dark"] .lang-btn {
    color: white;
}

/* Update details link hover color */
.detail-link:hover {
    color: var(--interactive-color);
}

/* Update text colors in dark mode */
[data-theme="dark"] .cta-text h2,
[data-theme="dark"] .cta-text p {
    color: var(--shell-yellow);
}

[data-theme="dark"] .btn-primary:hover {
    background-color: #FBBA00;
}

[data-theme="dark"] .secondary-color {
    color: var(--shell-yellow);
}

/* [data-theme="dark"] .company-name, */
[data-theme="dark"] .cta-text {
    color: var(--shell-yellow);
}

[data-theme="dark"] .signature {
    color: var(--primary-color);
}

@media (max-width: 1200px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* About Section */
.about-section {
    padding: 4rem 0;
    background-color: var(--background);
}

.about-section .container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    align-items: stretch;
    background-color: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transform: translateY(50px);
    opacity: 0;
    transition: all 0.8s ease;
}

.about-grid.reveal {
    transform: translateY(0);
    opacity: 1;
}

.about-content {
    padding: 3rem 4rem;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.content-wrapper {
    position: relative;
    z-index: 2;
}

.about-content::before {
    content: '';
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 0;
    background: var(--interactive-color);
    transition: height 0.6s ease;
}

.about-grid:first-child .about-content::before {
    right: 2rem;
}

.about-grid:last-child .about-content::before {
    left: 2rem;
}

.about-grid.reveal .about-content::before {
    height: 80%;
}

/* Dark mode color for vertical line */
[data-theme="dark"] .about-content::before {
    background: var(--shell-yellow);
}

.about-content h2 {
    font-size: 2.5rem;
    color: var(--interactive-color);
    text-align: left;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    font-weight: bold;
    transform: translateY(30px);
    opacity: 0;
    transition: all 0.6s ease 0.2s;
}

.about-grid.reveal .slide-up {
    transform: translateY(0);
    opacity: 1;
}

.about-content p {
    font-size: 1rem;
    color: #666;
    margin-bottom: 2rem;
    line-height: 1.6;
    opacity: 0;
    transition: opacity 0.6s ease 0.4s;
}

.about-grid.reveal .fade-in {
    opacity: 1;
}

.stats-container, 
.milestone-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
    transform: translateY(30px);
    opacity: 0;
    transition: all 0.6s ease 0.6s;
}

.about-grid.reveal .stats-container,
.about-grid.reveal .milestone-container {
    transform: translateY(0);
    opacity: 1;
}

.stat-item {
    text-align: center;
    padding: 1rem;
    background: rgba(251, 186, 0, 0.1);
    border-radius: 8px;
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: bold;
    color: var(--interactive-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: #666;
}

.milestone {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(251, 186, 0, 0.1);
    border-radius: 8px;
    transition: transform 0.3s ease;
}

.milestone:hover {
    transform: translateY(-5px);
}

.milestone-icon {
    flex: 0 0 40px;
    width: 40px;
    height: 40px;
    background: var(--interactive-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.milestone-icon i {
    color: white;
    font-size: 1.2rem;
    width: auto;
    height: auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.milestone-text {
    flex: 1;
    font-size: 0.9rem;
    color: #666;
    font-weight: 500;
}

.about-image {
    position: relative;
    height: 100%;
    min-height: 400px;
    overflow: hidden;
}

.about-image .image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(0,0,0,0.4), transparent);
    z-index: 1;
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.1);
    transition: transform 0.6s ease;
}

.about-grid.reveal .about-image img {
    transform: scale(1);
}

.btn-wrapper {
    margin-top: auto;
    opacity: 0;
    transform: scale(0.9);
    transition: all 0.6s ease 0.8s;
}

.about-grid:first-child .btn-wrapper {
    text-align: right;
}

.about-grid:last-child .btn-wrapper {
    text-align: left;
}

.about-grid.reveal .btn-wrapper {
    opacity: 1;
    transform: scale(1);
}

[data-theme="dark"] .about-grid {
    background-color: var(--light-background);
}

[data-theme="dark"] .about-content h2 {
    color: var(--shell-yellow);
}

[data-theme="dark"] .about-content::before {
    background: var(--shell-yellow);
}

[data-theme="dark"] .about-content p,
[data-theme="dark"] .stat-label,
[data-theme="dark"] .milestone-text {
    color: var(--text-color);
}

[data-theme="dark"] .stat-item,
[data-theme="dark"] .milestone {
    background: rgba(251, 186, 0, 0.05);
}

[data-theme="dark"] .stat-number {
    color: var(--shell-yellow);
}

[data-theme="dark"] .milestone-icon {
    background: var(--shell-yellow);
}

[data-theme="dark"] .milestone-icon i {
    color: var(--background);
}

@media (max-width: 1024px) {
    .about-section .container {
        gap: 1.5rem;
    }

    .about-content {
        padding: 2rem 3rem;
    }

    .about-content h2 {
        font-size: 2rem;
    }

    .about-image {
        min-height: 350px;
    }

    .stats-container, 
    .milestone-container {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-grid:first-child .about-content::before {
        right: 1.5rem;
    }

    .about-grid:last-child .about-content::before {
        left: 1.5rem;
    }
}

@media (max-width: 768px) {
    .about-section .container {
        gap: 1rem;
    }

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

    .about-content {
        padding: 2rem;
    }

    .about-content h2 {
        font-size: 1.8rem;
    }

    .about-image {
        min-height: 300px;
        order: -1;
    }

    .about-content::before {
        display: none;
    }

    .about-grid:first-child .btn-wrapper,
    .about-grid:last-child .btn-wrapper {
        text-align: center;
    }
}

@media (max-width: 480px) {
    .about-section {
        padding: 2rem 0;
    }

    .about-content {
        padding: 1.5rem;
    }

    .about-content h2 {
        font-size: 1.6rem;
    }

    .about-image {
        min-height: 250px;
    }

    .stats-container, 
    .milestone-container {
        grid-template-columns: 1fr;
    }
}

/* Why Choose Us Section */
.why-choose-us {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--background) 0%, var(--light-background) 100%);
    position: relative;
    overflow: hidden;
}

.why-choose-us::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: radial-gradient(circle at 50% 50%, rgba(251, 186, 0, 0.1) 0%, transparent 50%);
    animation: pulse 4s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.5);
        opacity: 0.2;
    }
    100% {
        transform: scale(1);
        opacity: 0.5;
    }
}

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

.feature-card {
    background: var(--background);
    padding: 2.5rem 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.5s ease;
    position: relative;
    overflow: hidden;
    transform: translateY(50px);
    opacity: 0;
}

.feature-card.reveal {
    transform: translateY(0);
    opacity: 1;
}

.feature-card::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(251, 186, 0, 0.1) 0%, transparent 100%);
    top: 0;
    left: 0;
    transform: translateY(100%);
    transition: transform 0.5s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
}

.feature-card:hover::before {
    transform: translateY(0);
}

.icon-wrapper {
    width: 80px;
    height: 80px;
    background: var(--light-background);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    position: relative;
    transition: all 0.5s ease;
}

.icon-wrapper::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid var(--shell-yellow);
    border-radius: 50%;
    animation: ripple 2s infinite;
}

@keyframes ripple {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

.feature-card:hover .icon-wrapper {
    background: var(--shell-yellow);
}

.icon-wrapper i {
    font-size: 2rem;
    color: var(--shell-yellow);
    transition: all 0.5s ease;
}

.feature-card:hover .icon-wrapper i {
    color: var(--background);
    transform: rotateY(360deg);
}

.feature-card h3 {
    color: var(--text-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    position: relative;
    padding-bottom: 1rem;
}

.feature-card h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background: var(--shell-yellow);
    transition: width 0.3s ease;
}

.feature-card:hover h3::after {
    width: 100px;
}

.feature-card p {
    color: var(--light-text);
    font-size: 1rem;
    line-height: 1.6;
    margin: 0;
}

/* Dark mode adjustments */
[data-theme="dark"] .feature-card {
    background: var(--light-background);
}

[data-theme="dark"] .icon-wrapper {
    background: var(--background);
}

/* Responsive design for Why Choose Us section */
@media (max-width: 1200px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin-left: auto;
        margin-right: auto;
    }

    .why-choose-us {
        padding: 4rem 0;
    }

    .feature-card {
        padding: 2rem 1.5rem;
    }
}

/* Mission & Vision Sections */
.mission-vision-container {
    margin-top: 4rem;
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.mission-section,
.vision-section {
    display: flex;
    align-items: center;
    gap: 3rem;
    padding: 2rem;
    background: var(--background);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transform: translateY(50px);
    opacity: 0;
    transition: all 0.8s ease;
}

.mission-section.reveal,
.vision-section.reveal {
    transform: translateY(0);
    opacity: 1;
}

.hexagon-wrapper {
    flex: 0 0 200px;
    position: relative;
}

.hexagon {
    width: 150px;
    height: 173.21px; /* height = width * √3 */
    background: linear-gradient(135deg, var(--shell-yellow) 0%, #0064b0 100%);
    position: relative;
    margin: 0 auto;
    transition: all 0.5s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
}

.hexagon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 140px;
    height: 161.66px;
    background: var(--background);
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    z-index: 1;
}

.hexagon i {
    font-size: 3rem;
    color: var(--shell-yellow);
    position: relative;
    z-index: 2;
    transition: all 0.5s ease;
}

.mission-section:hover .hexagon,
.vision-section:hover .hexagon {
    transform: rotate(30deg);
}

.mission-section:hover .hexagon i,
.vision-section:hover .hexagon i {
    transform: rotate(-30deg);
}

.content-box {
    flex: 1;
}

.content-box h2 {
    text-align: left;
    color: var(--shell-yellow);
    margin-bottom: 1.5rem;
}

.content-box p {
    color: var(--text-color);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.highlight-points {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.point {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(251, 186, 0, 0.1);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.point:hover {
    transform: translateX(10px);
    background: rgba(251, 186, 0, 0.2);
}

.point i {
    color: var(--shell-yellow);
    font-size: 1.2rem;
}

.point span {
    color: var(--text-color);
    font-weight: 500;
}

/* Dark mode adjustments */
[data-theme="dark"] .mission-section,
[data-theme="dark"] .vision-section {
    background: var(--light-background);
}

[data-theme="dark"] .hexagon::before {
    background: var(--background);
}

[data-theme="dark"] .point {
    background: rgba(251, 186, 0, 0.05);
}

[data-theme="dark"] .point:hover {
    background: rgba(251, 186, 0, 0.1);
}

/* About Hero Section */
.about-hero {
    position: relative;
    height: 60vh;
    min-height: 400px;
    margin-top: 50px;
    overflow: hidden;
}

.hero-image {
    position: relative;
    width: 100%;
    height: 100%;
}

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

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
}

.hero-overlay h1 {
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease forwards;
}

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

/* Responsive Design for Mission & Vision */
@media (max-width: 1024px) {
    .mission-section,
    .vision-section {
        flex-direction: column;
        text-align: center;
        padding: 3rem 2rem;
    }

    .content-box h2 {
        text-align: center;
    }

    .hexagon-wrapper {
        margin-bottom: 2rem;
    }

    .point:hover {
        transform: translateY(-5px);
    }
}

@media (max-width: 768px) {
    .mission-vision-container {
        gap: 2rem;
    }

    .highlight-points {
        grid-template-columns: 1fr;
    }

    .about-hero {
        height: 50vh;
    }
}

@media (max-width: 480px) {
    .mission-section,
    .vision-section {
        padding: 2rem 1.5rem;
    }

    .hexagon {
        width: 120px;
        height: 138.56px;
    }

    .hexagon::before {
        width: 112px;
        height: 129.33px;
    }

    .hexagon i {
        font-size: 2.5rem;
    }

    .about-hero {
        height: 40vh;
    }
}

/* Mission & Vision Section */
.mission-vision-section {
    padding: 6rem 0;
    background: var(--background);
    position: relative;
    overflow: hidden;
}

.mission-vision-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(251, 186, 0, 0.05) 0%, transparent 70%);
    z-index: 1;
}

.mv-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
    position: relative;
    z-index: 2;
}

.mv-box {
    background: var(--background);
    border-radius: 20px;
    padding: 3rem;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.5s ease;
    transform: translateY(50px);
    opacity: 0;
}

.mv-box.reveal {
    transform: translateY(0);
    opacity: 1;
}

.mv-box:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.mv-content {
    position: relative;
    z-index: 2;
}

.mv-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.icon-circle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--shell-yellow) 0%, #0064b0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: all 0.5s ease;
}

.icon-circle::before {
    content: '';
    position: absolute;
    width: 54px;
    height: 54px;
    background: var(--background);
    border-radius: 50%;
    transition: all 0.5s ease;
}

.icon-circle i {
    font-size: 1.5rem;
    color: var(--shell-yellow);
    position: relative;
    z-index: 1;
    transition: all 0.5s ease;
}

.mv-box:hover .icon-circle {
    transform: rotate(360deg);
}

.mv-box:hover .icon-circle::before {
    transform: scale(0.8);
}

.mv-box:hover .icon-circle i {
    color: var(--shell-yellow);
    transform: scale(1.2);
}

.mv-header h2 {
    color: var(--text-color);
    font-size: 2rem;
    position: relative;
}

.mv-header h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--shell-yellow);
    transition: width 0.3s ease;
}

.mv-box:hover .mv-header h2::after {
    width: 100%;
}

.mv-box p {
    color: var(--light-text);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.mv-points {
    display: grid;
    gap: 1rem;
}

.mv-points .point {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(251, 186, 0, 0.1);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.mv-points .point:hover {
    transform: translateX(10px);
    background: rgba(251, 186, 0, 0.2);
}

.mv-points .point i {
    color: var(--shell-yellow);
    font-size: 1.2rem;
}

.mv-points .point span {
    color: var(--text-color);
    font-weight: 500;
}

.mv-decoration {
    position: absolute;
    top: 0;
    right: 0;
    width: 200px;
    height: 200px;
    opacity: 0.1;
    z-index: 1;
}

.circle-pattern {
    position: absolute;
    width: 100%;
    height: 100%;
    background: repeating-radial-gradient(
        circle at 50% 50%,
        var(--shell-yellow) 0,
        var(--shell-yellow) 3px,
        transparent 3px,
        transparent 15px
    );
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Dark mode adjustments */
[data-theme="dark"] .mv-box {
    background: var(--light-background);
}

[data-theme="dark"] .icon-circle::before {
    background: var(--light-background);
}

[data-theme="dark"] .mv-points .point {
    background: rgba(251, 186, 0, 0.05);
}

[data-theme="dark"] .mv-points .point:hover {
    background: rgba(251, 186, 0, 0.1);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .mv-grid {
        grid-template-columns: 1fr;
        max-width: 700px;
        margin: 0 auto;
    }

    .mission-vision-section {
        padding: 4rem 0;
    }
}

@media (max-width: 768px) {
    .mv-box {
        padding: 2rem;
    }

    .mv-header {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }

    .mv-header h2::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .mv-points .point:hover {
        transform: translateY(-5px);
    }
}

@media (max-width: 480px) {
    .icon-circle {
        width: 50px;
        height: 50px;
    }

    .icon-circle::before {
        width: 44px;
        height: 44px;
    }

    .icon-circle i {
        font-size: 1.2rem;
    }

    .mv-header h2 {
        font-size: 1.5rem;
    }
}

/* Team Section */
.team-section {
    padding: 6rem 0;
    background: var(--background);
    position: relative;
    overflow: hidden;
}

.team-section::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: radial-gradient(circle at 50% 50%, rgba(251, 186, 0, 0.05) 0%, transparent 70%);
    animation: pulse 4s infinite;
}

.section-title {
    position: relative;
    text-align: center;
    margin-bottom: 4rem;
}

.title-text {
    position: relative;
    display: inline-block;
    color: var(--text-color);
    z-index: 1;
}

.title-line {
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--shell-yellow);
}

.title-line::before,
.title-line::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 8px;
    height: 8px;
    background: var(--shell-yellow);
    border-radius: 50%;
    transform: translateY(-50%);
}

.title-line::before {
    left: -10px;
}

.title-line::after {
    right: -10px;
}

.team-carousel {
    position: relative;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 60px;
}

.carousel-container {
    overflow: hidden;
    position: relative;
    margin: 0 auto;
    padding: 0 90px;
    max-width: calc(100% - 100px); /* Giới hạn chiều rộng để căn giữa */
}

.team-grid {
    display: flex;
    gap: 0; /* Không dùng gap nữa vì sẽ tự tính margin */
    transition: transform 0.5s ease;
}

.team-grid.sliding {
    transition: transform 0.5s ease;
}

.team-card {
    width: calc(20% - 2rem); /* Chiều rộng cho 3 card */
    flex: 0 0 auto;
    margin: 0 1rem;  /* Khoảng cách giữa các card */
    position: relative;
    transform: translateY(0);
    opacity: 1;
    transition: all 0.6s ease;
    cursor: pointer;
}

.team-card.reveal {
    transform: translateY(0);
    opacity: 1;
}

.member-image-wrapper {
    position: relative;
    margin-bottom: 1.5rem;
    border-radius: 20px;
    overflow: hidden;
}

.member-image {
    position: relative;
    width: 100%;
    padding-bottom: 120%;
    overflow: hidden;
    transition: all 0.5s ease;
}

.member-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.5s ease;
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to bottom,
        transparent 0%,
        rgba(0, 0, 0, 0.4) 100%
    );
    opacity: 0;
    transition: all 0.5s ease;
}

.member-shape {
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 30%;
    background: var(--background);
    clip-path: polygon(0 100%, 50% 0, 100% 100%);
    transform: translateY(100%);
    transition: all 0.5s ease;
}

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

.team-card:hover .image-overlay {
    opacity: 1;
}

.team-card:hover .member-shape {
    transform: translateY(0);
}

.member-info {
    text-align: center;
    padding: 1rem;
    position: relative;
}

.member-info::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--shell-yellow);
    transition: width 0.5s ease;
}

.team-card:hover .member-info::before {
    width: 50px;
}

.member-info h3 {
    color: var(--text-color);
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
}

.member-info .position {
    display: block;
    color: var(--light-text);
    font-size: 0.9rem;
    font-style: italic;
}

.carousel-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 3rem;
    gap: 1rem;
}

.carousel-dots {
    display: flex;
    gap: 0.5rem;
}

.carousel-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--light-text);
    cursor: pointer;
    transition: all 0.3s ease;
}

.carousel-dot.active {
    background: var(--shell-yellow);
    transform: scale(1.2);
}

.carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 10;
    background-color: var(--background);
    color: var(--interactive-color);
    border: 2px solid var(--interactive-color);
}

.carousel-arrow:hover {
    background-color: var(--interactive-color);
    color: var(--background);
}

.carousel-arrow.prev {
    left: 10px;
}

.carousel-arrow.next {
    right: 10px;
}

.carousel-arrow i {
    font-size: 1.2rem;
}

/* Member Details Modal */
.member-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
}

.member-modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--background);
    border-radius: 20px;
    padding: 2rem;
    max-width: 600px;
    width: 90%;
    position: relative;
    transform: scale(0.7);
    transition: all 0.3s ease;
}

.member-modal.active .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--shell-yellow);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.modal-close:hover {
    transform: rotate(90deg);
}

.modal-image {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    margin: 0 auto 2rem;
    overflow: hidden;
}

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

.modal-info h3 {
    text-align: center;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.modal-info .position {
    text-align: center;
    display: block;
    color: var(--shell-yellow);
    font-style: italic;
    margin-bottom: 1.5rem;
}

.modal-bio {
    color: var(--light-text);
    line-height: 1.6;
    text-align: justify;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--light-background);
    color: var(--shell-yellow);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

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

/* Dark mode adjustments */
[data-theme="dark"] .team-section {
    background: var(--background);
}

[data-theme="dark"] .member-shape {
    background: var(--background);
}

[data-theme="dark"] .member-info h3 {
    color: var(--shell-yellow);
}

[data-theme="dark"] .carousel-arrow {
    background: var(--light-background);
}

[data-theme="dark"] .modal-content {
    background: var(--light-background);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .team-card {
        width: calc(33.333% - 2rem);
    }
}

@media (max-width: 992px) {
    .team-card {
        width: calc(33.333% - 2rem);
    }
}

@media (max-width: 768px) {
    .team-section {
        padding: 4rem 0;
    }

    .team-carousel {
        padding: 0 40px;
    }

    .carousel-container {
        margin: 0 -40px;
        padding: 0 40px;
    }

    .team-grid {
        width: calc(100% - 80px);
    }

    .team-card {
        width: 100%;
    }

    .member-image {
        padding-bottom: 100%;
    }

    .carousel-arrow {
        width: 35px;
        height: 35px;
    }
}

@media (max-width: 480px) {
    .team-carousel {
        padding: 0 30px;
    }

    .carousel-container {
        margin: 0 -30px;
        padding: 0 30px;
    }

    .team-grid {
        width: calc(100% - 60px);
    }
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 3rem auto;
    max-width: 1400px;
    padding: 0 2rem;
}

.service-card {
    position: relative;
    background: #f8f9fa;
    border-radius: 15px;
    padding: 2rem;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    cursor: pointer;
    height: 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    border: 1px solid rgba(0, 100, 176, 0.1);
}

.service-icon {
    width: 120px;
    height: 60px;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
    transition: all 0.3s ease;
}

.service-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.service-card h3 {
    color: var(--interactive-color);
    font-size: 1.25rem;
    margin-bottom: 1rem;
    text-align: center;
    position: relative;
    z-index: 1;
    transition: all 0.3s ease;
}

.service-brief {
    text-align: center;
    color: var(--light-text);
    transition: all 0.3s ease;
    z-index: 1;
}

.service-card:hover .service-icon,
.service-card:hover h3,
.service-card:hover .service-brief {
    opacity: 0;
    transform: translateY(-20px);
}

.service-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom right, #f8f9fa, #e9ecef);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
}

.service-card:hover .service-overlay {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.overlay-content {
    color: var(--text-color);
    text-align: center;
    max-width: 100%;
}

.overlay-content h3 {
    color: var(--interactive-color);
    margin-bottom: 1rem;
    opacity: 1;
    transform: none;
}

.overlay-content p {
    margin-bottom: 1rem;
    line-height: 1.5;
    font-size: 0.9rem;
}

.service-features {
    list-style: none;
    padding: 0;
    margin: 1rem 0;
}

.service-features li {
    margin: 0.5rem 0;
    padding-left: 1.2rem;
    position: relative;
    text-align: left;
    font-size: 0.9rem;
}

.service-features li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--shell-yellow);
}

/* Dark mode adjustments */
[data-theme="dark"] .service-card {
    background: var(--light-background);
}

[data-theme="dark"] .service-card h3 {
    color: var(--shell-yellow);
}

[data-theme="dark"] .service-overlay {
    background: linear-gradient(to bottom right, var(--light-background), var(--background));
}

/* Responsive design */
@media (max-width: 1200px) {
    .service-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .service-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }

    .service-card {
        height: 280px;
    }
}

@media (hover: none) {
    .service-overlay {
        opacity: 1;
        transform: translateY(100%);
        visibility: visible;
    }
    
    .service-card.active .service-overlay {
        transform: translateY(0);
    }
    
    .service-card.active .service-icon,
    .service-card.active h3,
    .service-card.active .service-brief {
        opacity: 0;
        transform: translateY(-20px);
    }
}

/* Map Section */
.map-wrapper {
    position: relative;
    width: 100%;
    height: 600px;
    margin-top: 0;
    overflow: hidden;
}

.map-section {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

#map {
    width: 100%;
    height: 100%;
}

.contact-info-overlay {
    position: absolute;
    top: 50%;
    right: 10%;
    transform: translateY(-50%);
    z-index: 10;
}

.info-card {
    background: var(--background);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    min-width: 300px;
}

.contact-info-overlay .info-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.contact-info-overlay .info-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.contact-info-overlay .info-item:first-child {
    padding-top: 0;
}

.contact-info-overlay .info-item .icon {
    width: 50px;
    height: 50px;
    background: var(--interactive-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-info-overlay .info-item .icon i {
    color: white;
    font-size: 1.2rem;
}

.contact-info-overlay .info-item .details h3 {
    color: var(--text-color);
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.contact-info-overlay .info-item .details p {
    color: var(--light-text);
    font-size: 0.9rem;
    margin: 0;
}

/* Contact Form Section */
.contact-form-section {
    position: relative;
    padding: 4rem 0;
    background: var(--background);
    z-index: 2;
}

.form-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem;
    background: var(--background);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

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

.form-group {
    position: relative;
}

.form-group.full-width {
    grid-column: span 2;
}

.input-wrapper {
    position: relative;
}

.input-wrapper i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--light-text);
    transition: all 0.3s ease;
}

.input-wrapper input,
.input-wrapper textarea {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background: transparent;
    color: var(--text-color);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.input-wrapper textarea {
    height: 150px;
    resize: none;
    padding-top: 1.5rem;
}

.input-wrapper label {
    position: absolute;
    left: 3rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--light-text);
    pointer-events: none;
    transition: all 0.3s ease;
}

.input-wrapper textarea + label {
    top: 1.5rem;
    transform: none;
}

.input-wrapper input:focus,
.input-wrapper textarea:focus {
    border-color: var(--interactive-color);
    box-shadow: 0 0 0 2px rgba(0, 93, 168, 0.1);
}

.input-wrapper input:focus + label,
.input-wrapper textarea:focus + label,
.input-wrapper input:not(:placeholder-shown) + label,
.input-wrapper textarea:not(:placeholder-shown) + label {
    top: 0;
    left: 1rem;
    transform: translateY(-50%);
    font-size: 0.8rem;
    color: var(--interactive-color);
    background: var(--background);
    padding: 0 0.5rem;
}

.input-wrapper input:focus ~ i,
.input-wrapper textarea:focus ~ i {
    color: var(--interactive-color);
}

.focus-border {
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--interactive-color);
    transition: all 0.3s ease;
}

.input-wrapper input:focus ~ .focus-border,
.input-wrapper textarea:focus ~ .focus-border {
    width: 100%;
    left: 0;
}

.form-footer {
    text-align: center;
    margin-top: 2rem;
}

.submit-btn {
    background: var(--interactive-color);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.submit-btn:hover {
    background: var(--interactive-color);
    filter: brightness(1.1);
}

.submit-btn i {
    transition: all 0.3s ease;
}

.submit-btn:hover i {
    transform: translateX(5px);
}

/* Dark mode adjustments for contact page */
[data-theme="dark"] .info-card {
    background: var(--light-background);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .form-container {
    background: var(--light-background);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .input-wrapper input,
[data-theme="dark"] .input-wrapper textarea {
    border-color: var(--border-color);
}

[data-theme="dark"] .input-wrapper input:focus + label,
[data-theme="dark"] .input-wrapper textarea:focus + label,
[data-theme="dark"] .input-wrapper input:not(:placeholder-shown) + label,
[data-theme="dark"] .input-wrapper textarea:not(:placeholder-shown) + label {
    background: var(--light-background);
}

/* Responsive Design for contact page */
@media (max-width: 992px) {
    .contact-info-overlay {
        right: 5%;
    }
}

@media (max-width: 768px) {
    .map-wrapper {
        height: 400px;
    }

    .contact-info-overlay {
        position: static;
        transform: none;
        margin-top: -100px;
        padding: 0 1rem;
        margin-bottom: 2rem;
    }

    .info-card {
        margin: 0 auto;
        max-width: 500px;
    }

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

    .form-group.full-width {
        grid-column: span 1;
    }

    .form-container {
        padding: 2rem;
    }
}

@media (max-width: 480px) {
    .map-wrapper {
        height: 300px;
    }

    .info-card {
        padding: 1.5rem;
    }

    .contact-info-overlay .info-item {
        gap: 1rem;
    }

    .contact-info-overlay .info-item .icon {
        width: 40px;
        height: 40px;
    }

    .form-container {
        padding: 1.5rem;
    }

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

/* Dark mode contact page adjustments */
[data-theme="dark"] .contact-info-overlay .info-item .icon {
    background: var(--shell-yellow);
}

[data-theme="dark"] .input-wrapper input:focus,
[data-theme="dark"] .input-wrapper textarea:focus {
    border-color: var(--shell-yellow);
    box-shadow: 0 0 0 2px rgba(251, 186, 0, 0.1);
}

[data-theme="dark"] .input-wrapper input:focus + label,
[data-theme="dark"] .input-wrapper textarea:focus + label,
[data-theme="dark"] .input-wrapper input:not(:placeholder-shown) + label,
[data-theme="dark"] .input-wrapper textarea:not(:placeholder-shown) + label {
    color: var(--shell-yellow);
}

[data-theme="dark"] .input-wrapper input:focus ~ i,
[data-theme="dark"] .input-wrapper textarea:focus ~ i {
    color: var(--shell-yellow);
}

[data-theme="dark"] .focus-border {
    background: var(--shell-yellow);
}

[data-theme="dark"] .submit-btn {
    background: var(--shell-yellow);
}

[data-theme="dark"] .submit-btn:hover {
    box-shadow: 0 5px 15px rgba(251, 186, 0, 0.3);
}

/* Update other elements for light/dark mode */
.useful-links a:hover {
    color: var(--shell-blue);
}

.contact-item i {
    color: var(--shell-blue);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--shell-blue);
}

.btn-primary {
    background-color: var(--shell-blue);
}

.btn-primary:hover {
    box-shadow: 0 5px 15px rgba(0, 93, 168, 0.3);
}

.service-card .service-overlay {
    background: linear-gradient(180deg, rgba(248, 249, 250, 0) 0%, rgba(0, 93, 168, 0.1) 100%);
}

.service-card:hover {
    border-color: var(--shell-blue);
}

.section-title::after {
    background-color: var(--shell-blue);
}

.team-navigation button {
    background-color: var(--shell-blue);
}

.team-card:hover {
    border-color: var(--shell-blue);
}

/* Dark mode for general elements */
[data-theme="dark"] .useful-links a:hover {
    color: var(--shell-yellow);
}

[data-theme="dark"] .contact-item i {
    color: var(--shell-yellow);
}

[data-theme="dark"] .nav-links a:hover,
[data-theme="dark"] .nav-links a.active {
    color: var(--shell-yellow);
}

[data-theme="dark"] .btn-primary {
    background-color: var(--shell-yellow);
}

[data-theme="dark"] .btn-primary:hover {
    box-shadow: 0 5px 15px rgba(251, 186, 0, 0.3);
}

[data-theme="dark"] .service-card .service-overlay {
    background: linear-gradient(180deg, rgba(18, 18, 18, 0) 0%, rgba(251, 186, 0, 0.1) 100%);
}

[data-theme="dark"] .service-card:hover {
    border-color: var(--shell-yellow);
}

[data-theme="dark"] .section-title::after {
    background-color: var(--shell-yellow);
}

[data-theme="dark"] .team-navigation button {
    background-color: var(--shell-yellow);
}

[data-theme="dark"] .team-card:hover {
    border-color: var(--shell-yellow);
}

.hero-content .btn-primary {
    background-color: var(--shell-blue);
}

[data-theme="dark"] .hero-content .btn-primary {
    background-color: var(--shell-yellow);
}

.product-card:hover {
    border-color: var(--shell-blue);
}

[data-theme="dark"] .product-card:hover {
    border-color: var(--shell-yellow);
}

.carousel-dots .dot.active,
.carousel-dots .dot:hover {
    background-color: var(--shell-blue);
}

[data-theme="dark"] .carousel-dots .dot.active,
[data-theme="dark"] .carousel-dots .dot:hover {
    background-color: var(--shell-yellow);
}

.team-card .member-info h4 {
    color: var(--shell-blue);
}

[data-theme="dark"] .team-card .member-info h4 {
    color: var(--shell-yellow);
}

.service-item-icon {
    color: var(--shell-blue);
}

[data-theme="dark"] .service-item-icon {
    color: var(--shell-yellow);
}

.service-features li i {
    color: var(--shell-blue);
}

[data-theme="dark"] .service-features li i {
    color: var(--shell-yellow);
}

a.learn-more {
    color: var(--shell-blue);
}

[data-theme="dark"] a.learn-more {
    color: var(--shell-yellow);
}

.cta-section .btn-primary {
    background-color: var(--shell-blue);
}

[data-theme="dark"] .cta-section .btn-primary {
    background-color: var(--shell-yellow);
}

.footer a:hover {
    color: var(--shell-blue);
}

[data-theme="dark"] .footer a:hover {
    color: var(--shell-yellow);
}

.about-section .icon {
    color: var(--shell-blue);
}

[data-theme="dark"] .about-section .icon {
    color: var(--shell-yellow);
}

.faq-item.active .faq-header {
    color: var(--shell-blue);
}

[data-theme="dark"] .faq-item.active .faq-header {
    color: var(--shell-yellow);
}

.faq-icon {
    color: var(--shell-blue);
}

[data-theme="dark"] .faq-icon {
    color: var(--shell-yellow);
}

.theme-btn:hover {
    color: var(--shell-blue);
}

[data-theme="dark"] .theme-btn:hover {
    color: var(--shell-yellow);
}

.lang-option:hover,
.lang-option.active {
    color: var(--shell-blue);
}

[data-theme="dark"] .lang-option:hover,
[data-theme="dark"] .lang-option.active {
    color: var(--shell-yellow);
}

.product-price {
    color: var(--shell-blue);
}

[data-theme="dark"] .product-price {
    color: var(--shell-yellow);
}

/* Animation Effects */
.reveal-on-scroll {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease;
}

.reveal-on-scroll.reveal {
    opacity: 1;
    transform: translateY(0);
}

/* Reveal from left animation */
.reveal-from-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.8s ease;
}

.reveal-from-left.reveal-left {
    opacity: 1;
    transform: translateX(0);
}

/* Reveal from right animation */
.reveal-from-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.8s ease;
}

.reveal-from-right.reveal-right {
    opacity: 1;
    transform: translateX(0);
}

/* Zoom animation */
.reveal-zoom {
    opacity: 0;
    transform: scale(0.9);
    transition: all 0.8s ease;
}

.reveal-zoom.reveal-zoom-in {
    opacity: 1;
    transform: scale(1);
}

/* Card reveal animation with delay */
.card-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.5s ease;
}

.card-reveal.card-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Cải thiện header cho mobile */
@media (max-width: 1120px) {
    .header {
        padding: 10px 15px;
    }
    
    .nav {
        display: flex;
        flex-wrap: nowrap;
        align-items: center;
        justify-content: space-between;
        position: relative;
    }
    
    .logo {
        margin: 0;
        padding: 0;
        flex: 0 0 auto;
        order: 1;
    }
    
    .logo-img {
        height: 40px;
        width: auto;
    }
    
    .right-section {
        display: flex;
        align-items: center;
        margin: 0;
        padding: 0;
        gap: 10px;
        width: auto;
        order: 2;
        flex: 0 1 auto;
    }
    
    .right-section .contact-info {
        display: none;
    }
    
    .partner-logo {
        padding: 0;
        margin: 0;
    }
    
    .partner-logo .logo-img {
        height: 40px;
        width: auto;
    }
    
    .menu-toggle {
        display: block;
        position: static;
        margin: 0;
        padding: 5px;
        order: 3;
        flex: 0 0 auto;
        z-index: 2000;
        background: transparent;
        border: none;
        cursor: pointer;
    }
    
    .header-controls {
        position: fixed;
        top: auto;
        bottom: 20px;
        right: 20px;
        z-index: 1900;
    }
    
    .nav-links {
        position: fixed;
        top: 60px;
        left: -100%;
        width: 80%;
        height: calc(100vh - 60px);
        background-color: var(--background);
        display: flex;
        flex-direction: column;
        padding: 2rem;
        margin: 0;
        z-index: 1800;
        box-shadow: 0 5px 15px var(--card-shadow);
        transition: left 0.3s ease;
        overflow-y: auto;
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .header .container {
        position: relative;
        padding: 0;
    }
}

@media (max-width: 480px) {
    .logo-img, 
    .partner-logo .logo-img {
        height: 35px;
    }
    
    .hamburger-line {
        width: 25px;
        height: 2px;
        margin: 5px 0;
    }
}

/* Menu open state - prevent body scrolling */
body.menu-open {
    overflow: hidden;
}

@media (max-width: 1120px) {
    .header {
        padding: 10px 15px;
    }
    
    .nav {
        display: flex;
        flex-wrap: nowrap;
        align-items: center;
        justify-content: space-between;
        position: relative;
    }
    
    .logo {
        margin: 0;
        padding: 0;
        flex: 0 0 auto;
        order: 1;
    }
    
    /* Rest of existing mobile styles */
}

/* Preserve desktop header layout */
@media (min-width: 1121px) {
    .header {
        padding: 1rem 0;
    }
    
    .nav {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
    }
    
    .logo {
        margin-right: 1rem;
    }
    
    .right-section {
        margin-left: auto;
        order: 3;
        display: flex;
        align-items: center;
        gap: 1rem;
    }
    
    .nav-links {
        order: 2;
        display: flex;
        margin: 0;
        padding: 0;
        list-style-type: none;
    }
    
    .nav-links li {
        margin: 0 1rem;
    }
    
    .menu-toggle {
        display: none;
    }
    
    .header-controls {
        position: static;
        display: flex;
        align-items: center;
        gap: 10px;
        order: 4;
    }
}

/* Mobile header optimizations */
@media (max-width: 1120px) {
    .header {
        padding: 10px 15px;
    }
    
    .nav {
        display: flex;
        flex-wrap: nowrap;
        align-items: center;
        justify-content: space-between;
        position: relative;
    }
    
    .logo {
        margin: 0;
        padding: 0;
        flex: 0 0 auto;
        order: 1;
    }
    
    .logo-img {
        height: 40px;
        width: auto;
    }
    
    .right-section {
        display: flex;
        align-items: center;
        margin: 0;
        padding: 0;
        gap: 10px;
        width: auto;
        order: 2;
        flex: 0 1 auto;
    }
    
    .right-section .contact-info {
        display: none;
    }
    
    .partner-logo {
        padding: 0;
        margin: 0;
    }
    
    .partner-logo .logo-img {
        height: 40px;
        width: auto;
    }
    
    .menu-toggle {
        display: block;
        position: static;
        margin: 0;
        padding: 5px;
        order: 3;
        flex: 0 0 auto;
        z-index: 2000;
        background: transparent;
        border: none;
        cursor: pointer;
    }
    
    .header-controls {
        position: fixed;
        top: auto;
        bottom: 20px;
        right: 20px;
        z-index: 1900;
    }
    
    .nav-links {
        position: fixed;
        top: 60px;
        left: -100%;
        width: 80%;
        height: calc(100vh - 60px);
        background-color: var(--background);
        display: flex;
        flex-direction: column;
        padding: 2rem;
        margin: 0;
        z-index: 1800;
        box-shadow: 0 5px 15px var(--card-shadow);
        transition: left 0.3s ease;
        overflow-y: auto;
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .header .container {
        position: relative;
        padding: 0;
    }
}

@media (min-width: 1121px) and (max-width: 1366px) {
    .header-controls {
        position: fixed;
        top: auto;
        bottom: 20px;
        right: 20px;
        z-index: 1900;
    }
}

/* Marine Lubricants Equivalent Table Styles */
.equivalent-table {
    padding: 3rem 0;
    background-color: var(--background);
}

.equivalent-table h2 {
    text-align: center;
    margin-bottom: 2.5rem;
    color: var(--shell-blue);
    font-size: 2.2rem;
    font-weight: 600;
}

.table-container {
    display: grid;
    grid-template-columns: 17% 63% 17%;
    gap: 1rem;
    max-width: 1600px;
    height: 700px;
}

.brand-list, .products-combined {
    background-color: #f8fafc;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    padding: 1.5rem 0.2rem 1.5rem 0.2rem;
    height: 100%;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.brand-list h3, .products-list h3 {
    color: var(--shell-blue);
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    text-align: center;
    padding-bottom: 1rem;
    border-bottom: 2px solid #e2e8f0;
    font-weight: 600;
    position: sticky;
    top: 0;
    background-color: #f8fafc;
    z-index: 1;
}

.brand-list ul, .product-list {
    list-style: none;
    padding: 0;
    margin: 0;
    padding: 1.5rem 0rem 1.5rem 1rem;
    overflow-y: auto;
    flex: 1;
    scrollbar-width: thin;
    scrollbar-color: var(--interactive-color) #f8fafc;
}

.brand-list ul::-webkit-scrollbar,
.product-list::-webkit-scrollbar {
    width: 8px;
}

.brand-list ul::-webkit-scrollbar-track,
.product-list::-webkit-scrollbar-track {
    background: #f8fafc;
    border-radius: 4px;
    margin: 4px;
}

.brand-list ul::-webkit-scrollbar-thumb,
.product-list::-webkit-scrollbar-thumb {
    background-color: var(--interactive-color);
    border-radius: 4px;
    border: 2px solid #f8fafc;
}

.brand-list ul::-webkit-scrollbar-thumb:hover,
.product-list::-webkit-scrollbar-thumb:hover {
    background-color: var(--interactive-hover);
}

.brand-list li, .product-list li {
    padding: 0.7rem 0.8rem;
    margin-bottom: 0.5rem;
    border-radius: 8px;
    color: #4a5568;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.95rem;
    border: 1px solid #e2e8f0;
    background-color: #f8fafc;
    width: calc(100% - 1.6rem);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.brand-list li:hover, .product-list li:hover {
    background-color: #ebf4ff;
    color: var(--shell-blue);
    transform: translateX(5px);
    border-color: var(--shell-blue);
    width: calc(100% - 1.6rem);
}

.brand-list li.active, .product-list li.hover {
    background-color: #ebf4ff;
    color: var(--shell-blue);
    border-color: var(--shell-blue);
    width: calc(100% - 1.6rem);
}

.products-combined {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.3rem;
    padding: 1rem;
}

.products-list {
    background: #f8fafc;
    border-radius: 12px;
    padding: 0.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    height: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.products-container {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
    scrollbar-width: thin;
    scrollbar-color: var(--interactive-color) #f8fafc;
}

.products-container::-webkit-scrollbar {
    width: 8px;
}

.products-container::-webkit-scrollbar-track {
    background: #f8fafc;
    border-radius: 4px;
    margin: 4px;
}

.products-container::-webkit-scrollbar-thumb {
    background-color: var(--interactive-color);
    border-radius: 4px;
    border: 2px solid #f8fafc;
}

.products-container::-webkit-scrollbar-thumb:hover {
    background-color: var(--interactive-hover);
}

.no-products {
    color: #718096;
    text-align: center;
    font-style: italic;
    padding: 2rem 0;
    font-size: 1.1rem;
}

/* Dark theme adjustments */
[data-theme="dark"] .brand-list,
[data-theme="dark"] .products-list,
[data-theme="dark"] .products-combined {
    background-color: #2d3748;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .brand-list h3,
[data-theme="dark"] .products-list h3 {
    color: #e2e8f0;
    border-bottom-color: #4a5568;
    background-color: #2d3748;
}

[data-theme="dark"] .brand-list ul,
[data-theme="dark"] .product-list {
    scrollbar-color: var(--interactive-color) #2d3748;
}

[data-theme="dark"] .brand-list ul::-webkit-scrollbar-track,
[data-theme="dark"] .product-list::-webkit-scrollbar-track {
    background: #2d3748;
}

[data-theme="dark"] .brand-list ul::-webkit-scrollbar-thumb,
[data-theme="dark"] .product-list::-webkit-scrollbar-thumb {
    border: 2px solid #2d3748;
}

[data-theme="dark"] .brand-list li,
[data-theme="dark"] .product-list li {
    background-color: #2d3748;
    border-color: #4a5568;
    color: #e2e8f0;
}

[data-theme="dark"] .brand-list li:hover,
[data-theme="dark"] .product-list li:hover {
    background-color: #3a4a5e;
    color: #90cdf4;
    border-color: #90cdf4;
}

[data-theme="dark"] .brand-list li.active,
[data-theme="dark"] .product-list li.hover {
    background-color: var(--shell-blue);
    color: white;
    border-color: var(--shell-blue);
}

[data-theme="dark"] .products-container {
    scrollbar-color: var(--interactive-color) #2d3748;
}

[data-theme="dark"] .products-container::-webkit-scrollbar-track {
    background: #2d3748;
}

[data-theme="dark"] .products-container::-webkit-scrollbar-thumb {
    border: 2px solid #2d3748;
}

[data-theme="dark"] .no-products {
    color: #a0aec0;
}

.nav-links li {
    position: relative;
    display: inline-block;
    margin: 0 1rem;
}

.nav-links .dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background-color: var(--background);
    min-width: 220px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    padding: 0.8rem 0;
    margin-top: 1rem;
}

.nav-links .dropdown::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 8px solid var(--background);
}

.nav-links li:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown li {
    display: block;
    margin: 0;
    padding: 0;
}

.dropdown a {
    display: block;
    padding: 0.8rem 1.5rem;
    color: var(--text-color);
    text-decoration: none;
    transition: all 0.2s ease;
    font-size: 0.95rem;
    text-align: left;
    white-space: nowrap;
}

.dropdown a:hover {
    background-color: var(--light-background);
    color: var(--interactive-color);
    padding-left: 2rem;
}

.dropdown a::after {
    display: none;
}

/* Mobile dropdown styles */
@media (max-width: 1120px) {
    .nav-links .dropdown {
        position: static;
        background-color: var(--light-background);
        min-width: 100%;
        box-shadow: none;
        opacity: 1;
        visibility: visible;
        transform: none;
        padding: 0;
        margin-top: 0.5rem;
        display: none;
    }

    .nav-links li.active .dropdown {
        display: block;
    }

    .dropdown a {
        padding-left: 2rem;
    }
}

.nav-links .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background-color: var(--background);
    min-width: 220px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    padding: 0.8rem 0;
    margin-top: 0.5rem;
    pointer-events: none;
}

.nav-links .dropdown-menu::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 8px solid var(--background);
}

.nav-links li.has-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
    pointer-events: auto;
}

.dropdown-menu li {
    display: block;
    margin: 0;
    padding: 0;
}

.dropdown-menu a {
    display: block;
    padding: 0.8rem 1.5rem;
    color: var(--text-color);
    text-decoration: none;
    transition: all 0.2s ease;
    font-size: 0.95rem;
    text-align: left;
    white-space: nowrap;
}

.dropdown-menu a:hover {
    background-color: var(--light-background);
    color: var(--interactive-color);
    padding-left: 2rem;
}

.dropdown-menu a::after {
    display: none;
}

/* Mobile dropdown styles */
@media (max-width: 1120px) {
    .nav-links .dropdown-menu {
        position: static;
        background-color: var(--light-background);
        min-width: 100%;
        box-shadow: none;
        opacity: 0;
        visibility: hidden;
        transform: none;
        padding: 0;
        margin: 0.5rem 0;
        height: 0;
        overflow: hidden;
    }

    .nav-links .dropdown-menu::before {
        display: none;
    }

    .nav-links li.has-dropdown.active .dropdown-menu {
        opacity: 1;
        visibility: visible;
        height: auto;
        pointer-events: auto;
    }

    .dropdown-menu a {
        padding: 0.8rem 2rem;
        font-size: 0.9rem;
    }

    .dropdown-menu a:hover {
        padding-left: 2.5rem;
    }
}

.footer-links .warehouse-info {
    margin-top: 1em;
}
.footer-links .warehouse-item {
    margin-bottom: 0.8em;
    color: var(--text-color);
    font-size: 1rem;
    line-height: 1.5;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.2em;
}
.footer-links .warehouse-item > div:first-child {
    font-weight: bold;
    margin-bottom: 0.2em;
}
.footer-links .warehouse-item > div:last-child {
    display: flex;
    align-items: center;
    gap: 0.5em;
}
.footer-links .warehouse-item i {
    color: var(--interactive-color);
    margin-right: 0.5em;
    min-width: 18px;
}
.footer-links {
    margin-left: -2.5rem;
}

@media (min-width: 1025px) {
  .footer-content {
    grid-template-columns: 1.5fr 1.2fr 1.2fr;
  }
}

/* Technical Documentation Section */
.technical-docs {
    padding: 5rem 0;
    background: var(--background);
    position: relative;
    overflow: hidden;
}

.technical-docs::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: radial-gradient(circle at 50% 50%, rgba(0, 93, 168, 0.05) 0%, transparent 70%);
    animation: pulse 4s infinite;
}

.docs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    padding: 2rem;
    position: relative;
    z-index: 2;
}

.doc-card {
    background: var(--doc-card-bg);
    border-radius: var(--border-radius);
    padding: 2.5rem 2rem;
    text-align: center;
    box-shadow: var(--doc-card-shadow);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.doc-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 1;
}

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

.doc-card:hover::before {
    opacity: 0.1;
}

.doc-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--doc-icon-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    color: var(--doc-icon-color);
    font-size: 2rem;
    transition: all 0.4s ease;
}

.doc-icon::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid var(--shell-blue);
    border-radius: 50%;
    animation: spin 10s linear infinite;
}

@keyframes spin {
    100% { transform: rotate(360deg); }
}

.doc-card:hover .doc-icon {
    transform: scale(1.1);
}

.doc-card h3 {
    color: var(--text-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    position: relative;
    padding-bottom: 1rem;
}

.doc-card h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background: var(--shell-blue);
    transition: width 0.3s ease;
}

.doc-card:hover h3::after {
    width: 100px;
}

.btn-download {
    margin-top: 2rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: 2px solid var(--shell-blue);
    color: var(--shell-blue);
    border-radius: 50px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-download i {
    transition: transform 0.3s ease;
}

.btn-download:hover {
    background: var(--shell-blue);
    color: white;
}

.btn-download:hover i {
    transform: translateY(-2px);
}

/* Quality Comparison Section */
.quality-comparison {
    padding: 5rem 0;
    background: var(--light-background);
    position: relative;
    overflow: hidden;
}

.quality-comparison::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: radial-gradient(circle at 50% 50%, rgba(0, 93, 168, 0.05) 0%, transparent 70%);
    animation: pulse 4s infinite;
}

.table-wrapper {
    background: var(--background);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    position: relative;
    z-index: 2;
    overflow-x: auto;
}

.table-wrapper:hover {
    box-shadow: var(--shadow-lg);
}

.comparison-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.comparison-table th {
    background: var(--table-header-bg);
    color: white;
    padding: 1rem;
    text-align: left;
    font-weight: 500;
}

.comparison-table th:first-child {
    border-radius: 8px 0 0 0;
}

.comparison-table th:last-child {
    border-radius: 0 8px 0 0;
}

.comparison-table td {
    padding: 1rem;
    border-bottom: var(--table-border);
    transition: background-color 0.3s ease;
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.comparison-table tr:hover td {
    background-color: var(--table-row-hover);
}

/* Dark Theme Adjustments */
[data-theme="dark"] .doc-icon::after {
    border-color: var(--shell-yellow);
}

[data-theme="dark"] .doc-card h3::after {
    background: var(--shell-yellow);
}

[data-theme="dark"] .btn-download {
    border-color: var(--shell-yellow);
    color: var(--shell-yellow);
}

[data-theme="dark"] .btn-download:hover {
    background: var(--shell-yellow);
    color: var(--background);
}

/* Responsive Styles */
@media (max-width: 768px) {
    .docs-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 1rem;
    }

    .doc-card {
        padding: 2rem 1.5rem;
    }

    .table-wrapper {
        padding: 1rem;
        margin: 0 1rem;
    }

    .comparison-table {
        font-size: 0.9rem;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 0.75rem;
    }
}

/* Product Download Links */
.product-downloads {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.download-link {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.8rem 1.2rem;
    background: var(--background);
    border: 1px solid var(--shell-blue);
    border-radius: 12px;
    color: var(--shell-blue);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.download-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--shell-blue);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: 1;
}

.download-link:hover::before {
    transform: translateX(0);
}

.download-link i {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
    z-index: 2;
}

.download-link span {
    position: relative;
    z-index: 2;
}

.download-link:hover {
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(0, 93, 168, 0.2);
}

.download-link:hover i {
    transform: translateY(-3px);
}

.download-link.tds {
    border-color: var(--shell-blue);
    color: var(--shell-blue);
}

.download-link.tds::before {
    background: var(--shell-blue);
}

.download-link.msds {
    border-color: var(--shell-yellow);
    color: var(--shell-yellow);
}

.download-link.msds::before {
    background: var(--shell-yellow);
}

/* Dark mode adjustments */
[data-theme="dark"] .download-link {
    background: var(--light-background);
}

[data-theme="dark"] .download-link:hover {
    box-shadow: 0 4px 12px rgba(251, 186, 0, 0.2);
}

/* Responsive Design */
@media (max-width: 480px) {
    .product-downloads {
        flex-direction: column;
    }

    .download-link {
        justify-content: center;
    }
}

/* Product Card Styles */
.product-card {
    background: var(--background);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    position: relative;
    padding: 1.5rem;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.product-image {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    margin-bottom: 1.5rem;
}

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

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

.product-title {
    font-size: 1.5rem;
    color: var(--shell-blue);
    margin-bottom: 1rem;
    font-weight: 600;
}

.product-features {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem 0;
}

.product-features li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.8rem;
    color: var(--text-color);
    font-size: 0.95rem;
}

.product-features li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--shell-yellow);
    font-size: 1.2rem;
    line-height: 1;
}

/* Product Documentation Downloads */
.product-docs {
    display: flex;
    gap: 0.8rem;
    margin-top: 1.5rem;
}

.doc-link {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.7rem 1rem;
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.doc-link i {
    font-size: 1.1rem;
    transition: transform 0.3s ease;
}

.doc-link.tds {
    background: rgba(0, 93, 168, 0.1);
    color: var(--shell-blue);
}

.doc-link.msds {
    background: rgba(251, 186, 0, 0.1);
    color: var(--shell-yellow);
}

.doc-link.tds:hover {
    background: var(--shell-blue);
    color: white;
}

.doc-link.msds:hover {
    background: var(--shell-yellow);
    color: var(--background);
}

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

/* Dark mode adjustments */
[data-theme="dark"] .product-card {
    background: var(--light-background);
}

[data-theme="dark"] .product-title {
    color: var(--shell-yellow);
}

[data-theme="dark"] .doc-link.tds {
    background: rgba(0, 93, 168, 0.2);
    color: var(--shell-blue);
}

[data-theme="dark"] .doc-link.msds {
    background: rgba(251, 186, 0, 0.2);
    color: var(--shell-yellow);
}

[data-theme="dark"] .doc-link.tds:hover {
    background: var(--shell-blue);
    color: var(--background);
}

[data-theme="dark"] .doc-link.msds:hover {
    background: var(--shell-yellow);
    color: var(--background);
}

/* Responsive Design */
@media (max-width: 768px) {
    .product-card {
        padding: 1rem;
    }

    .product-image {
        height: 180px;
    }

    .product-title {
        font-size: 1.3rem;
    }

    .product-features li {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .product-docs {
        flex-direction: column;
    }

    .doc-link {
        width: 100%;
    }
}

/* Product Grid Layout */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    padding: 2rem 0;
}

@media (max-width: 640px) {
    .products-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 1.5rem 0;
    }
}

/* Product Pages Common Styles */
.product-page {
    padding: 5rem 0;
    background: var(--background);
    position: relative;
}

.product-page::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: radial-gradient(circle at 50% 50%, rgba(0, 93, 168, 0.05) 0%, transparent 70%);
    animation: pulse 4s infinite;
}

.product-hero {
    height: 80vh;
    position: relative;
    overflow: hidden;
    background: var(--shell-blue);
}

.product-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-position: center;
    background-size: cover;
    opacity: 0.7;
    z-index: 1;
    animation: scaleBackground 20s infinite alternate;
}

/* Specific hero backgrounds */
.industrial-hero::before {
    background-image: url('../images/industrial-hero.jpg');
}

.transport-hero::before {
    background-image: url('../images/transport-hero.jpg');
}

.marine-hero::before {
    background-image: url('../images/marine-hero.jpg');
}

.grease-hero::before {
    background-image: url('../images/grease-hero.jpg');
}

@keyframes scaleBackground {
    0% { transform: scale(1); }
    100% { transform: scale(1.1); }
}

.product-hero-overlay {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(11, 37, 69, 0.6);
}

.product-hero-content {
    text-align: center;
    color: white;
    max-width: 800px;
    padding: 0 2rem;
    animation: fadeInUp 1s ease-out;
}

/* Product Grid Layout */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    padding: 2rem;
    position: relative;
    z-index: 2;
}

/* Product Card Styles */
.product-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.4s ease;
    position: relative;
    padding: 0;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 1;
}

.product-card:hover {
    transform: translateY(-10px);
}

.product-details {
    position: relative;
    z-index: 2;
}

.product-title {
    font-size: 1.5rem;
    color: var(--shell-blue);
    margin-bottom: 1rem;
    font-weight: 600;
    position: relative;
    z-index: 2;
}

.product-features {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem 0;
    position: relative;
    z-index: 2;
}

.detail-link {
    color: var(--primary-color);
    cursor: pointer;
    transition: color 0.3s ease;
    position: relative;
    z-index: 3;
    display: inline-block;
}

.detail-link:hover {
    color: var(--interactive-color);
}

.product-card .product-docs {
    display: flex;
    gap: 0.8rem;
    margin-top: 1.5rem;
}

.product-card .doc-link,
.product-card a.doc-link {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.7rem 1rem;
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.product-card .doc-link i,
.product-card a.doc-link i {
    font-size: 1.1rem;
    transition: transform 0.3s ease;
}

.product-card .doc-link.tds,
.product-card a.doc-link.tds {
    background: rgba(0, 93, 168, 0.1);
    color: var(--shell-blue) !important;
}

.product-card .doc-link.msds,
.product-card a.doc-link.msds {
    background: rgba(251, 186, 0, 0.1);
    color: var(--shell-yellow) !important;
}

.product-card .doc-link.tds:hover,
.product-card a.doc-link.tds:hover {
    background: var(--shell-blue);
    color: white !important;
}

.product-card .doc-link.msds:hover,
.product-card a.doc-link.msds:hover {
    background: var(--shell-yellow);
    color: var(--background) !important;
}

.product-card .doc-link:hover i,
.product-card a.doc-link:hover i {
    transform: translateY(-2px);
}

/* Dark mode adjustments */
[data-theme="dark"] .product-card .doc-link.tds,
[data-theme="dark"] .product-card a.doc-link.tds {
    background: rgba(0, 93, 168, 0.2);
    color: var(--shell-blue) !important;
}

[data-theme="dark"] .product-card .doc-link.msds,
[data-theme="dark"] .product-card a.doc-link.msds {
    background: rgba(251, 186, 0, 0.2);
    color: var(--shell-yellow) !important;
}

[data-theme="dark"] .product-card .doc-link.tds:hover,
[data-theme="dark"] .product-card a.doc-link.tds:hover {
    background: var(--shell-blue);
    color: var(--background) !important;
}

[data-theme="dark"] .product-card .doc-link.msds:hover,
[data-theme="dark"] .product-card a.doc-link.msds:hover {
    background: var(--shell-yellow);
    color: var(--background) !important;
}

/* Product Documentation Links */
.product-card .doc-link {
    --tds-color: var(--shell-blue);
    --msds-color: var(--shell-yellow);
    --tds-bg: rgba(0, 93, 168, 0.1);
    --msds-bg: rgba(251, 186, 0, 0.1);
    
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.7rem 1rem;
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.product-card .doc-link i {
    font-size: 1.1rem;
    transition: transform 0.3s ease;
}

.product-card .doc-link.tds {
    background: var(--tds-bg);
    color: var(--tds-color);
}

.product-card .doc-link.msds {
    background: var(--msds-bg);
    color: var(--msds-color);
}

.product-card .doc-link.tds:hover {
    background: var(--tds-color);
    color: white;
}

.product-card .doc-link.msds:hover {
    background: var(--msds-color);
    color: var(--background);
}

.product-card .doc-link:hover i {
    transform: translateY(-2px);
}

/* Dark mode */
[data-theme="dark"] .product-card .doc-link {
    --tds-bg: rgba(0, 93, 168, 0.15);
    --msds-bg: rgba(251, 186, 0, 0.15);
}

[data-theme="dark"] .product-card .doc-link.tds:hover,
[data-theme="dark"] .product-card .doc-link.msds:hover {
    color: var(--background);
}

/* Product Documentation Grid */
.product-docs {
    display: flex;
    gap: 0.8rem;
    margin-top: 1.5rem;
}

/* Remove any conflicting styles */
.doc-link.tds,
.doc-link.msds,
.download-link.tds,
.download-link.msds {
    background: none;
    color: inherit;
}

[data-theme="dark"] .doc-link.tds,
[data-theme="dark"] .doc-link.msds {
    background: none;
    color: inherit;
}

/* --- FORCE TDS & MSDS COLORS IN PRODUCT CARD --- */
.product-card .doc-link.tds,
.product-card .doc-link.tds i {
    color: var(--shell-blue) !important;
    background: rgba(0, 93, 168, 0.15) !important;
}
.product-card .doc-link.msds,
.product-card .doc-link.msds i {
    color: var(--shell-yellow) !important;
    background: rgba(251, 186, 0, 0.15) !important;
}
[data-theme="dark"] .product-card .doc-link.tds,
[data-theme="dark"] .product-card .doc-link.tds i {
    color: var(--shell-blue) !important;
    background: rgba(0, 93, 168, 0.25) !important;
}
[data-theme="dark"] .product-card .doc-link.msds,
[data-theme="dark"] .product-card .doc-link.msds i {
    color: var(--shell-yellow) !important;
    background: rgba(251, 186, 0, 0.25) !important;
}

/* Our Partner Section */
.partner-section {
    padding: 5rem 0 4rem 0;
    background: linear-gradient(135deg, var(--background) 0%, var(--light-background) 100%);
    position: relative;
    overflow: hidden;
}
.partner-title {
    text-align: center;
    font-size: 2.4rem;
    color: var(--interactive-color);
    margin-bottom: 2.5rem;
    font-weight: 700;
    letter-spacing: 1px;
}
.partner-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 2.5rem;
    justify-items: center;
    align-items: center;
    max-width: 900px;
    margin: 0 auto;
}
.partner-card {
    background: var(--background);
    border-radius: 18px;
    box-shadow: 0 6px 24px rgba(0, 93, 168, 0.10), 0 1.5px 6px rgba(251, 186, 0, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 120px;
    height: 120px;
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: hidden;
    border: 2px solid var(--border-color);
}
.partner-card:hover {
    transform: translateY(-8px) scale(1.07) rotate(-2deg);
    box-shadow: 0 12px 32px rgba(0, 93, 168, 0.18), 0 3px 12px rgba(251, 186, 0, 0.12);
    border-color: var(--interactive-color);
    z-index: 2;
}
.partner-logo-img {
    width: 70%;
    height: 70%;
    object-fit: contain;
    filter: grayscale(0.2) brightness(0.98) drop-shadow(0 2px 6px rgba(0,0,0,0.08));
    transition: filter 0.3s, transform 0.3s;
}
.partner-card:hover .partner-logo-img {
    filter: grayscale(0) brightness(1.1) drop-shadow(0 4px 12px rgba(0,93,168,0.10));
    transform: scale(1.08) rotate(2deg);
}

/* Responsive adjustments */
@media (max-width: 900px) {
    .partner-grid {
        grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
        gap: 1.5rem;
    }
    .partner-card {
        width: 100px;
        height: 100px;
    }
}
@media (max-width: 600px) {
    .partner-section {
        padding: 2.5rem 0 2rem 0;
    }
    .partner-title {
        font-size: 1.5rem;
    }
    .partner-grid {
        gap: 1rem;
    }
    .partner-card {
        width: 70px;
        height: 70px;
    }
    .partner-logo-img {
        width: 80%;
        height: 80%;
    }
}

/* Dark mode for partner section */
[data-theme="dark"] .partner-section {
    background: linear-gradient(135deg, var(--background) 0%, #1a2332 100%);
}
[data-theme="dark"] .partner-card {
    background: var(--light-background);
    border-color: var(--shell-yellow);
    box-shadow: 0 6px 24px rgba(251, 186, 0, 0.10), 0 1.5px 6px rgba(0, 93, 168, 0.08);
}
[data-theme="dark"] .partner-card:hover {
    border-color: var(--shell-yellow);
    box-shadow: 0 12px 32px rgba(251, 186, 0, 0.18), 0 3px 12px rgba(0, 93, 168, 0.12);
}