/* ===== CSS Variables for Purosource ===== */
:root {
    --primary-blue: #0056b3;
    --secondary-blue: #007bff;
    --accent-teal: #20c997;
    --dark-charcoal: #212529;
    --light-gray: #f8f9fa;
    --white: #ffffff;
    --border-color: #dee2e6;
    --text-dark: #495057;
    --text-light: #6c757d;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 15px 30px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    color: var(--text-dark);
    background-color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Top Bar ===== */
.top-bar {
    background: var(--primary-blue);
    color: var(--white);
    padding: 8px 0;
    font-size: 14px;
    position: relative;
    z-index: 1002;
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.top-bar-contact {
    display: flex;
    align-items: center;
    gap: 25px;
    flex-wrap: wrap;
}

.top-bar-contact a {
    color: var(--white);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.top-bar-contact a:hover {
    color: var(--accent-teal);
    transform: translateY(-2px);
}

.top-bar-contact i {
    font-size: 14px;
    width: 16px;
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icons a {
    color: var(--white);
    font-size: 16px;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.social-icons a:hover {
    color: var(--accent-teal);
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* ===== Header ===== */
header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1001;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    height: 60px;
    display: flex;
    align-items: center;
}

.logo img {
    height: 100%;
    width: auto;
    max-width: 200px;
}

/* Navigation */
nav ul {
    display: flex;
    align-items: center;
    gap: 5px;
}

nav ul li {
    position: relative;
}

nav ul li a {
    font-weight: 600;
    font-size: 15px;
    padding: 12px 18px;
    color: var(--dark-charcoal);
    border-radius: 4px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 5px;
}

nav ul li a:hover,
nav ul li a.active {
    color: var(--primary-blue);
    background: rgba(0, 86, 179, 0.05);
}

nav ul li a.active {
    color: var(--primary-blue);
    font-weight: 700;
}

.dropdown > a::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 12px;
    margin-left: 5px;
}

/* Dropdown Menu */
.dropdown-content {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--white);
    min-width: 240px;
    box-shadow: var(--shadow);
    border-radius: 8px;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    padding: 10px 0;
    border-top: 3px solid var(--primary-blue);
}

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

.dropdown-content a {
    padding: 12px 20px;
    color: var(--text-dark);
    font-size: 14px;
    font-weight: 500;
    border-left: 3px solid transparent;
    transition: var(--transition);
}

.dropdown-content a:hover,
.dropdown-content a.active {
    background: rgba(0, 86, 179, 0.05);
    color: var(--primary-blue);
    border-left-color: var(--primary-blue);
    padding-left: 25px;
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--primary-blue);
    cursor: pointer;
    padding: 5px;
    width: 40px;
    height: 40px;
    border-radius: 4px;
    transition: var(--transition);
}

.mobile-menu-btn:hover {
    background: rgba(0, 86, 179, 0.1);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 15px;
    text-align: center;
    gap: 8px;
    min-width: 140px;
}

.btn i {
    font-size: 14px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
    box-shadow: 0 4px 15px rgba(0, 86, 179, 0.2);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 86, 179, 0.3);
    background: linear-gradient(135deg, var(--secondary-blue), var(--primary-blue));
}

.btn-secondary {
    background: var(--accent-teal);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(32, 201, 151, 0.2);
}

.btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(32, 201, 151, 0.3);
    background: #1ba87e;
}

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

.btn-outline:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-3px);
}

/* ===== Hero Section ===== */
.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)),
                url('https://images.unsplash.com/photo-1558618666-fcd25c85cd64?ixlib=rb-1.2.1&auto=format&fit=crop&w=1600&q=80');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--white);
    padding: 160px 0 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 86, 179, 0.9) 0%, rgba(32, 201, 151, 0.8) 100%);
    opacity: 0.8;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: 800;
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 18px;
    max-width: 700px;
    margin: 0 auto 30px;
    opacity: 0.95;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 30px;
}

/* ===== Page Header ===== */
.page-header {
    background: linear-gradient(rgba(0, 86, 179, 0.9), rgba(0, 123, 255, 0.9)),
                url('https://images.unsplash.com/photo-1542728928-0013d5f8dacb?ixlib=rb-1.2.1&auto=format&fit=crop&w=1600&q=80');
    background-size: cover;
    background-position: center;
    padding: 140px 0 60px;
    color: var(--white);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header h1 {
    font-size: 42px;
    margin-bottom: 15px;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.breadcrumb {
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--white);
    font-size: 15px;
}

.breadcrumb a {
    color: var(--white);
    opacity: 0.9;
    transition: var(--transition);
}

.breadcrumb a:hover {
    opacity: 1;
    color: var(--accent-teal);
}

.breadcrumb span {
    margin: 0 10px;
    opacity: 0.7;
}

/* ===== Sections ===== */
.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 36px;
    color: var(--primary-blue);
    margin-bottom: 15px;
    font-weight: 700;
    position: relative;
    display: inline-block;
    padding-bottom: 15px;
}

.section-title h2::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 4px;
    background: var(--accent-teal);
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}

.section-title p {
    color: var(--text-light);
    max-width: 700px;
    margin: 20px auto 0;
    font-size: 16px;
    line-height: 1.6;
}

/* ===== Features Grid ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-card {
    background: var(--white);
    border-radius: 10px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--accent-teal));
}

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

.feature-icon {
    font-size: 48px;
    color: var(--primary-blue);
    margin-bottom: 20px;
    display: inline-block;
    width: 80px;
    height: 80px;
    line-height: 80px;
    background: rgba(0, 86, 179, 0.1);
    border-radius: 50%;
}

.feature-card h3 {
    font-size: 20px;
    color: var(--dark-charcoal);
    margin-bottom: 15px;
    font-weight: 600;
}

.feature-card p {
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.6;
}

/* ===== Products Grid ===== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.product-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
}

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

.product-img {
    height: 220px;
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-teal));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 70px;
    position: relative;
    overflow: hidden;
}

.product-img::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.1);
}

.product-content {
    padding: 30px;
}

.product-content h3 {
    font-size: 20px;
    color: var(--dark-charcoal);
    margin-bottom: 15px;
    font-weight: 600;
    line-height: 1.4;
}

.product-content p {
    color: var(--text-light);
    margin-bottom: 20px;
    font-size: 14px;
    line-height: 1.6;
}

.product-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

/* ===== Product Detail ===== */
.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.product-image {
    background: var(--light-gray);
    height: 400px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 100px;
    color: var(--primary-blue);
    overflow: hidden;
    box-shadow: var(--shadow);
}

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

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

.product-info h2 {
    font-size: 32px;
    color: var(--primary-blue);
    margin-bottom: 20px;
    font-weight: 700;
    line-height: 1.3;
}

.product-desc {
    font-size: 16px;
    color: var(--text-dark);
    margin-bottom: 25px;
    line-height: 1.7;
}

.product-features {
    margin: 30px 0;
}

.product-features h3 {
    font-size: 22px;
    color: var(--primary-blue);
    margin-bottom: 20px;
    font-weight: 600;
}

.product-features ul {
    list-style: none;
}

.product-features li {
    margin-bottom: 12px;
    padding-left: 30px;
    position: relative;
    color: var(--text-dark);
    line-height: 1.6;
}

.product-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-teal);
    font-weight: bold;
    font-size: 16px;
    width: 24px;
    height: 24px;
    background: rgba(32, 201, 151, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-actions {
    display: flex;
    gap: 15px;
    margin-top: 40px;
    flex-wrap: wrap;
}

/* ===== Gallery ===== */
.gallery-section {
    padding: 80px 0;
    background: var(--light-gray);
}

.gallery-filter {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    background: var(--white);
    border: 2px solid var(--border-color);
    border-radius: 30px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    font-size: 14px;
    color: var(--text-dark);
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--primary-blue);
    color: var(--white);
    border-color: var(--primary-blue);
    transform: translateY(-2px);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 25px;
}

.gallery-item {
    height: 280px;
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

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

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

/* ===== Contact Section ===== */
.contact-section {
    padding: 80px 0;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: start;
}

.contact-info {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    padding: 40px;
    border-radius: 12px;
    color: var(--white);
    box-shadow: var(--shadow);
}

.contact-info h3 {
    font-size: 24px;
    margin-bottom: 30px;
    font-weight: 600;
}

.contact-detail {
    display: flex;
    align-items: flex-start;
    margin-bottom: 25px;
    padding-bottom: 25px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-detail:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.contact-icon {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
    flex-shrink: 0;
    font-size: 18px;
}

.contact-text h4 {
    font-size: 16px;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--white);
}

.contact-text p {
    font-size: 15px;
    opacity: 0.9;
    line-height: 1.6;
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.contact-form h3 {
    font-size: 24px;
    color: var(--primary-blue);
    margin-bottom: 30px;
    font-weight: 600;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark-charcoal);
    font-size: 14px;
}

.form-control {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 15px;
    transition: var(--transition);
    background: var(--white);
}

.form-control:focus {
    border-color: var(--primary-blue);
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 86, 179, 0.1);
}

textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

/* ===== Map Section ===== */
.map-section {
    padding: 0;
    background: var(--light-gray);
}

.map-container {
    width: 100%;
    height: 400px;
    background: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.map-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--light-gray), var(--white));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    text-align: center;
}

.map-placeholder i {
    font-size: 60px;
    color: var(--primary-blue);
    margin-bottom: 20px;
}

.map-placeholder h3 {
    color: var(--primary-blue);
    margin-bottom: 10px;
    font-weight: 600;
}

.map-placeholder p {
    color: var(--text-light);
    max-width: 400px;
}

/* ===== Brands Section ===== */
.brands-section {
    background: var(--light-gray);
    padding: 60px 0;
}

.brand-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 20px;
    align-items: center;
}

.brand-item {
    background: var(--white);
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    padding: 25px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    font-weight: 600;
    color: var(--primary-blue);
    font-size: 18px;
}

.brand-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

/* ===== About Content ===== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h2 {
    font-size: 32px;
    color: var(--primary-blue);
    margin-bottom: 20px;
    font-weight: 700;
    line-height: 1.3;
}

.about-text p {
    font-size: 16px;
    color: var(--text-dark);
    margin-bottom: 20px;
    line-height: 1.7;
}

.about-image {
    height: 400px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

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

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

/* ===== Stats Grid ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
    margin: 50px 0;
}

.stat-card {
    text-align: center;
    padding: 40px 30px;
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-top: 4px solid var(--primary-blue);
}

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

.stat-number {
    font-size: 42px;
    color: var(--primary-blue);
    font-weight: 700;
    margin-bottom: 10px;
    display: block;
}

.stat-label {
    color: var(--text-light);
    font-size: 16px;
    font-weight: 500;
}

/* ===== Values Grid ===== */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.value-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-left: 4px solid var(--accent-teal);
    position: relative;
    overflow: hidden;
}

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

.value-icon {
    font-size: 40px;
    color: var(--primary-blue);
    margin-bottom: 20px;
    display: inline-block;
    width: 70px;
    height: 70px;
    line-height: 70px;
    background: rgba(0, 86, 179, 0.1);
    border-radius: 50%;
}

.value-card h3 {
    font-size: 20px;
    color: var(--dark-charcoal);
    margin-bottom: 15px;
    font-weight: 600;
}

.value-card p {
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.6;
}

/* ===== Related Products ===== */
.related-products {
    background: var(--light-gray);
    padding: 80px 0;
}

/* ===== Footer ===== */
footer {
    background: var(--dark-charcoal);
    color: var(--white);
    padding: 80px 0 20px;
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--accent-teal));
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-column h3 {
    font-size: 20px;
    margin-bottom: 25px;
    color: var(--white);
    position: relative;
    padding-bottom: 15px;
    font-weight: 600;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    width: 50px;
    height: 3px;
    background: var(--accent-teal);
    bottom: 0;
    left: 0;
    border-radius: 2px;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #adb5bd;
    transition: var(--transition);
    display: inline-block;
    font-size: 14.5px;
}

.footer-links a:hover {
    color: var(--accent-teal);
    padding-left: 8px;
}

.footer-contact li {
    margin-bottom: 20px;
    display: flex;
    align-items: flex-start;
}

.footer-contact i {
    color: var(--accent-teal);
    margin-right: 15px;
    font-size: 18px;
    width: 20px;
    margin-top: 4px;
}

.footer-contact span {
    font-size: 14.5px;
    line-height: 1.6;
    color: #adb5bd;
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #495057;
    font-size: 14px;
    color: #adb5bd;
    line-height: 1.6;
}

/* ===== Call Now Button ===== */
.call-now-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: linear-gradient(135deg, var(--accent-teal), #1ba87e);
    color: var(--white);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    box-shadow: 0 6px 20px rgba(32, 201, 151, 0.3);
    z-index: 1000;
    transition: var(--transition);
    text-decoration: none;
}

.call-now-btn:hover {
    transform: scale(1.1) translateY(-5px);
    box-shadow: 0 10px 30px rgba(32, 201, 151, 0.4);
    color: var(--white);
}

/* ===== Responsive Design ===== */
@media (max-width: 1200px) {
    .container {
        padding: 0 30px;
    }
}

@media (max-width: 992px) {
    .hero h1 {
        font-size: 42px;
    }
    
    .section-title h2 {
        font-size: 32px;
    }
    
    .page-header h1 {
        font-size: 36px;
    }
    
    .product-detail,
    .contact-container,
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    nav {
        position: fixed;
        top: 140px;
        left: 0;
        width: 100%;
        background: var(--white);
        box-shadow: var(--shadow);
        padding: 20px;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        z-index: 999;
        max-height: calc(100vh - 140px);
        overflow-y: auto;
    }
    
    nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    nav ul {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }
    
    nav ul li {
        margin: 0;
        border-bottom: 1px solid var(--border-color);
    }
    
    nav ul li:last-child {
        border-bottom: none;
    }
    
    nav ul li a {
        padding: 15px 0;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
    
    .dropdown > a::after {
        transition: transform 0.3s ease;
    }
    
    .dropdown.active > a::after {
        transform: rotate(180deg);
    }
    
    .dropdown-content {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: rgba(0, 86, 179, 0.05);
        margin: 10px 0;
        display: none;
        border-top: none;
        border-radius: 4px;
    }
    
    .dropdown.active .dropdown-content {
        display: block;
    }
    
    .top-bar-content {
        flex-direction: column;
        gap: 15px;
        text-align: center;
        padding: 15px 20px;
    }
    
    .top-bar-contact {
        justify-content: center;
        gap: 20px;
    }
    
    .social-icons {
        justify-content: center;
    }
    
    .hero {
        padding: 140px 0 80px;
        background-attachment: scroll;
    }
    
    .hero h1 {
        font-size: 36px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }
    
    .page-header {
        padding: 120px 0 50px;
    }
    
    .page-header h1 {
        font-size: 32px;
    }
    
    .product-actions {
        flex-direction: column;
    }
    
    .product-actions .btn {
        width: 100%;
    }
    
    .brand-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .call-now-btn {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 20px;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 20px;
    }
    
    .hero h1 {
        font-size: 32px;
    }
    
    .section-title h2 {
        font-size: 28px;
    }
    
    .page-header h1 {
        font-size: 28px;
    }
    
    .product-info h2 {
        font-size: 28px;
    }
    
    .features-grid,
    .products-grid,
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .brand-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-info,
    .contact-form {
        padding: 30px 20px;
    }
    
    .stat-card {
        padding: 30px 20px;
    }
    
    .stat-number {
        font-size: 36px;
    }
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.8s ease forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}