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

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&family=Source+Sans+3:wght@400;500;600&display=swap');

:root {
    /* Industrial Steel Palette */
    --primary-color: #1e3a5f;
    --primary-light: #2d5a8a;
    --primary-dark: #0f1f33;
    --secondary-color: #3d7cb8;
    --accent-color: #c77b30;
    --accent-light: #e5a55d;
    --accent-dark: #9a5a1f;
    --dark-color: #151c24;
    --dark-secondary: #1f2937;
    --light-color: #f4f6f8;
    --light-secondary: #e8ecf0;
    --gray-color: #5a6572;
    --gray-light: #8b95a3;
    --border-color: #d1d9e0;
    --steel-gradient: linear-gradient(135deg, #2d3e50 0%, #1e3a5f 50%, #0f2538 100%);
    --metallic-shine: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 50%, rgba(255,255,255,0) 100%);
    --shadow-sm: 0 2px 4px rgba(21, 28, 36, 0.08);
    --shadow-md: 0 4px 12px rgba(21, 28, 36, 0.12), 0 2px 4px rgba(21, 28, 36, 0.08);
    --shadow-lg: 0 12px 32px rgba(21, 28, 36, 0.16), 0 4px 12px rgba(21, 28, 36, 0.1);
    --shadow-xl: 0 24px 48px rgba(21, 28, 36, 0.2), 0 8px 16px rgba(21, 28, 36, 0.12);
    --shadow-accent: 0 8px 24px rgba(199, 123, 48, 0.25);
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.7;
    color: var(--dark-color);
    background-color: #ffffff;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Noise texture overlay */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.02;
    z-index: 9999;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: color var(--transition-smooth), transform var(--transition-fast);
}

a:hover {
    color: var(--accent-color);
}

/* Selection styling */
::selection {
    background-color: var(--accent-color);
    color: white;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 36px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    font-family: 'Outfit', sans-serif;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all var(--transition-smooth);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    background: var(--primary-light);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn:active {
    transform: translateY(-1px);
}

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

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

.btn-accent {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-dark) 100%);
    border: none;
}

.btn-accent:hover {
    background: linear-gradient(135deg, var(--accent-light) 0%, var(--accent-color) 100%);
    box-shadow: var(--shadow-accent);
}

/* Button loading state */
.btn-loading {
    pointer-events: none;
    opacity: 0.7;
}

header {
    background-color: white;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.header-top {
    background: var(--steel-gradient);
    color: white;
    padding: 10px 0;
    font-size: 13px;
    letter-spacing: 0.3px;
    position: relative;
}

.header-top::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}

.header-top .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.header-contact {
    display: flex;
    gap: 28px;
    flex-wrap: wrap;
}

.header-contact span {
    display: flex;
    align-items: center;
    gap: 8px;
    transition: transform var(--transition-fast);
}

.header-contact span:hover {
    transform: translateX(2px);
}

.header-contact a {
    color: rgba(255, 255, 255, 0.85);
    transition: color var(--transition-fast);
}

.header-contact a:hover {
    color: var(--accent-light);
}

.header-main {
    padding: 16px 0;
    background: white;
}

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

.logo {
    display: flex;
    align-items: center;
    transition: transform var(--transition-fast);
}

.logo:hover {
    transform: scale(1.02);
}

.logo img {
    max-height: 84px;
    width: auto;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 8px;
}

nav a {
    color: var(--dark-color);
    font-family: 'Outfit', sans-serif;
    font-weight: 500;
    font-size: 20px;
    padding: 10px 18px;
    border-radius: 4px;
    transition: all var(--transition-fast);
    position: relative;
    letter-spacing: 0.3px;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 6px;
    left: 18px;
    right: 18px;
    height: 2px;
    background: var(--accent-color);
    transform: scaleX(0);
    transition: transform var(--transition-smooth);
}

nav a:hover,
nav a.active {
    color: var(--primary-color);
    background-color: var(--light-color);
}

nav a:hover::after,
nav a.active::after {
    transform: scaleX(1);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    font-size: 20px;
    cursor: pointer;
    color: var(--dark-color);
    padding: 8px 12px;
    transition: all var(--transition-fast);
}

.mobile-menu-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.hero {
    background: var(--steel-gradient);
    color: white;
    padding: 120px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 80%, rgba(199, 123, 48, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(61, 124, 184, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
    pointer-events: none;
}

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

.hero h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 56px;
    font-weight: 800;
    margin-bottom: 24px;
    line-height: 1.15;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}

.hero p {
    font-size: 19px;
    margin-bottom: 48px;
    opacity: 0.9;
    max-width: 680px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-buttons .btn {
    background: white;
    color: var(--primary-color);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.hero-buttons .btn:hover {
    background: var(--accent-color);
    color: white;
    transform: translateY(-4px);
    box-shadow: var(--shadow-accent);
}

.hero-buttons .btn-outline {
    border: 2px solid rgba(255, 255, 255, 0.4);
    color: white;
    background: transparent;
    backdrop-filter: blur(4px);
}

.hero-buttons .btn-outline:hover {
    background: white;
    color: var(--primary-color);
    border-color: white;
}

section {
    padding: 100px 0;
    position: relative;
}

.section-title {
    text-align: center;
    font-family: 'Outfit', sans-serif;
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--dark-color);
    letter-spacing: -0.5px;
}

.section-subtitle {
    text-align: center;
    font-size: 17px;
    color: var(--gray-color);
    margin-bottom: 60px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

.about {
    background-color: var(--light-color);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-text h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 32px;
    margin-bottom: 24px;
    color: var(--dark-color);
    font-weight: 700;
    letter-spacing: -0.3px;
}

.about-text p {
    margin-bottom: 18px;
    color: var(--gray-color);
    font-size: 16px;
    line-height: 1.75;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 32px;
}

.about-feature {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 16px;
    background: white;
    border-radius: 6px;
    transition: all var(--transition-smooth);
    border: 1px solid transparent;
}

.about-feature:hover {
    border-color: var(--border-color);
    box-shadow: var(--shadow-sm);
    transform: translateY(-2px);
}

.about-feature-icon {
    color: var(--accent-color);
    font-size: 22px;
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--light-color);
    border-radius: 4px;
}

.about-feature-text h4 {
    font-family: 'Outfit', sans-serif;
    font-size: 15px;
    margin-bottom: 4px;
    font-weight: 600;
    color: var(--dark-color);
}

.about-feature-text p {
    font-size: 13px;
    margin: 0;
    color: var(--gray-light);
    line-height: 1.5;
}

.product-categories {
    background-color: white;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.category-card {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-smooth);
    border: 1px solid var(--light-secondary);
}

.category-card:hover {
    transform: translateY(-8px) scale(1.01);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.category-image {
    height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--light-color) 0%, var(--light-secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 72px;
    position: relative;
}

.category-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--metallic-shine);
    pointer-events: none;
}

.category-content {
    padding: 28px;
}

.category-content h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--dark-color);
    font-weight: 600;
}

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

.featured-products {
    background-color: var(--light-color);
    position: relative;
}

.featured-products::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.product-card {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-smooth);
    border: 1px solid var(--border-color);
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.product-image {
    height: 240px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--light-color) 0%, var(--light-secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 90px;
    position: relative;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-smooth);
}

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

.product-content {
    padding: 28px;
}

.product-content h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--dark-color);
    font-weight: 600;
}

.product-content p {
    color: var(--gray-color);
    margin-bottom: 18px;
    font-size: 14px;
    line-height: 1.6;
}

.product-standards {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.standard-tag {
    background: linear-gradient(135deg, var(--light-color) 0%, var(--light-secondary) 100%);
    padding: 5px 14px;
    border-radius: 3px;
    font-size: 12px;
    color: var(--primary-color);
    font-weight: 600;
    letter-spacing: 0.3px;
    border: 1px solid var(--border-color);
}

.view-all {
    text-align: center;
    margin-top: 60px;
}

.why-choose-us {
    background-color: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.feature-item {
    text-align: center;
    padding: 40px 28px;
    border-radius: 8px;
    transition: all var(--transition-smooth);
    border: 1px solid transparent;
}

.feature-item:hover {
    background: var(--light-color);
    border-color: var(--border-color);
    transform: translateY(-4px);
}

.feature-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 24px;
    background: var(--steel-gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-bounce);
}

.feature-item:hover .feature-icon {
    transform: scale(1.1);
}

.feature-item h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 18px;
    margin-bottom: 14px;
    color: var(--dark-color);
    font-weight: 600;
}

.feature-item p {
    color: var(--gray-color);
    font-size: 14px;
    line-height: 1.7;
}

.contact-cta {
    background: var(--steel-gradient);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.contact-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 30% 50%, rgba(199, 123, 48, 0.2) 0%, transparent 60%),
        radial-gradient(ellipse at 70% 50%, rgba(61, 124, 184, 0.15) 0%, transparent 60%);
    pointer-events: none;
}

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

.contact-cta h2 {
    font-family: 'Outfit', sans-serif;
    font-size: 40px;
    margin-bottom: 16px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.contact-cta p {
    font-size: 18px;
    margin-bottom: 36px;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

.contact-cta .btn {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-dark) 100%);
    border: none;
}

.contact-cta .btn:hover {
    background: linear-gradient(135deg, var(--accent-light) 0%, var(--accent-color) 100%);
    box-shadow: var(--shadow-accent);
    transform: translateY(-4px);
}

footer {
    background: var(--steel-gradient);
    color: white;
    padding: 80px 0 24px;
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-col h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 16px;
    margin-bottom: 24px;
    color: white;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.footer-col p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 16px;
    font-size: 14px;
    line-height: 1.7;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 14px;
}

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.7);
    transition: all var(--transition-fast);
    font-size: 14px;
}

.footer-col ul li a:hover {
    color: var(--accent-light);
    padding-left: 6px;
}

.contact-info li {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 24px;
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 13px;
}

.page-header {
    background: var(--steel-gradient);
    color: white;
    padding: 72px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 80%, rgba(199, 123, 48, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(61, 124, 184, 0.12) 0%, transparent 50%);
    pointer-events: none;
}

.page-header h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 48px;
    margin-bottom: 12px;
    font-weight: 700;
    letter-spacing: -0.5px;
    position: relative;
}

.page-header p {
    font-size: 17px;
    opacity: 0.9;
    position: relative;
}

.product-list {
    padding: 60px 0;
}

.product-filter {
    background: linear-gradient(135deg, var(--light-color) 0%, var(--light-secondary) 100%);
    padding: 24px 28px;
    border-radius: 8px;
    margin-bottom: 48px;
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    align-items: center;
    border: 1px solid var(--border-color);
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 12px;
}

.filter-group label {
    font-family: 'Outfit', sans-serif;
    font-weight: 500;
    color: var(--dark-color);
    font-size: 14px;
}

.filter-group select {
    padding: 10px 16px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 14px;
    background-color: white;
    cursor: pointer;
    transition: all var(--transition-fast);
    min-width: 150px;
}

.filter-group select:hover {
    border-color: var(--primary-color);
}

.filter-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.1);
}

.product-detail {
    padding: 60px 0;
}

.product-detail-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.product-gallery {
    position: sticky;
    top: 100px;
}

.main-image {
    background: linear-gradient(135deg, var(--light-color) 0%, var(--light-secondary) 100%);
    border-radius: 8px;
    padding: 40px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 280px;
    position: relative;
    overflow: hidden;
}

.main-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--metallic-shine);
    pointer-events: none;
}

.main-image img {
    max-width: 100%;
    max-height: 400px;
    object-fit: contain;
}

.thumbnail-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.thumbnail {
    background: linear-gradient(135deg, var(--light-color) 0%, var(--light-secondary) 100%);
    border-radius: 6px;
    padding: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition-smooth);
}

.thumbnail:hover,
.thumbnail.active {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.product-info h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 36px;
    margin-bottom: 16px;
    color: var(--dark-color);
    font-weight: 700;
    letter-spacing: -0.5px;
}

.product-standard {
    display: inline-block;
    background: var(--steel-gradient);
    color: white;
    padding: 8px 20px;
    border-radius: 4px;
    font-family: 'Outfit', sans-serif;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 24px;
}

.product-info p {
    color: var(--gray-color);
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 30px;
}

.product-specs {
    background: linear-gradient(135deg, var(--light-color) 0%, var(--light-secondary) 100%);
    border-radius: 8px;
    padding: 28px;
    margin-bottom: 30px;
    border: 1px solid var(--border-color);
}

.product-specs h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--dark-color);
    font-weight: 600;
}

.spec-table {
    width: 100%;
}

.spec-table tr td {
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.spec-table td:first-child {
    font-weight: 500;
    color: var(--dark-color);
    width: 40%;
    font-size: 14px;
}

.spec-table td:last-child {
    color: var(--gray-color);
    font-size: 14px;
}

.available-standards {
    margin-bottom: 30px;
}

.available-standards h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 18px;
    margin-bottom: 16px;
    color: var(--dark-color);
    font-weight: 600;
}

.standards-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.standard-item {
    background: var(--steel-gradient);
    color: white;
    padding: 10px 18px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 500;
}

.product-detail-bottom {
    margin-top: 64px;
}

.tabs {
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 40px;
}

.tab-list {
    display: flex;
    gap: 0;
    list-style: none;
}

.tab-btn {
    padding: 18px 28px;
    background: none;
    border: none;
    font-family: 'Outfit', sans-serif;
    font-size: 15px;
    font-weight: 500;
    color: var(--gray-color);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all var(--transition-fast);
    position: relative;
}

.tab-btn::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-color);
    transform: scaleX(0);
    transition: transform var(--transition-smooth);
}

.tab-btn:hover {
    color: var(--dark-color);
}

.tab-btn:hover::after,
.tab-btn.active::after {
    transform: scaleX(1);
}

.tab-btn.active {
    color: var(--dark-color);
    font-weight: 600;
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.tab-content.active {
    display: block;
}

.application-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}

.application-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 20px;
    background: linear-gradient(135deg, var(--light-color) 0%, var(--light-secondary) 100%);
    border-radius: 6px;
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.application-item:hover {
    transform: translateX(4px);
    border-color: var(--primary-light);
}

.application-item span {
    color: var(--dark-color);
    font-weight: 500;
    font-size: 14px;
}

.contact-page {
    padding: 80px 0;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
}

.contact-info-block {
    margin-bottom: 44px;
}

.contact-info-block h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--dark-color);
    font-weight: 600;
}

.contact-detail {
    display: flex;
    gap: 18px;
    margin-bottom: 28px;
}

.contact-detail-icon {
    width: 52px;
    height: 52px;
    background: var(--steel-gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 20px;
    box-shadow: var(--shadow-sm);
}

.contact-detail-text h4 {
    font-family: 'Outfit', sans-serif;
    font-size: 15px;
    margin-bottom: 6px;
    color: var(--dark-color);
    font-weight: 600;
}

.contact-detail-text p,
.contact-detail-text a {
    color: var(--gray-color);
    font-size: 14px;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.social-link {
    width: 44px;
    height: 44px;
    background: var(--steel-gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-smooth);
    font-size: 18px;
}

.social-link:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.contact-form {
    background: linear-gradient(135deg, var(--light-color) 0%, var(--light-secondary) 100%);
    padding: 40px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.contact-form h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 24px;
    margin-bottom: 32px;
    color: var(--dark-color);
    font-weight: 600;
}

.form-group {
    margin-bottom: 22px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-family: 'Outfit', sans-serif;
    font-weight: 500;
    color: var(--dark-color);
    font-size: 14px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 15px;
    font-family: 'Source Sans 3', sans-serif;
    background-color: white;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.08);
}

.form-group textarea {
    min-height: 140px;
    resize: vertical;
}

.breadcrumb {
    background-color: var(--light-color);
    padding: 16px 0;
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb ol {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.breadcrumb li::after {
    content: '/';
    margin-left: 8px;
    color: var(--gray-light);
    font-size: 13px;
}

.breadcrumb li:last-child::after {
    display: none;
}

.breadcrumb a {
    color: var(--gray-color);
    font-size: 14px;
    transition: color var(--transition-fast);
}

.breadcrumb a:hover {
    color: var(--primary-color);
}

.breadcrumb li:last-child {
    color: var(--primary-color);
    font-weight: 500;
    font-size: 14px;
}

@media (max-width: 992px) {
    .hero h1 {
        font-size: 42px;
    }
    
    .hero {
        padding: 80px 0;
    }
    
    section {
        padding: 80px 0;
    }
    
    .section-title {
        font-size: 36px;
    }
    
    .about-content,
    .product-detail-container,
    .contact-container,
    .footer-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .product-gallery {
        position: static;
    }
    
    .main-image {
        font-size: 180px;
        padding: 30px;
    }
}

@media (max-width: 768px) {
    .header-top .container {
        flex-direction: column;
        text-align: center;
    }
    
    .header-contact {
        justify-content: center;
    }
    
    nav ul {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-lg);
        gap: 4px;
    }
    
    nav ul.active {
        display: flex;
    }
    
    nav a {
        padding: 14px 18px;
        border-bottom: 1px solid var(--border-color);
        border-radius: 0;
    }
    
    nav a::after {
        display: none;
    }
    
    nav a:hover,
    nav a.active {
        border-bottom-color: var(--border-color);
        background-color: var(--light-color);
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero {
        padding: 60px 0;
    }
    
    .hero h1 {
        font-size: 32px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .section-subtitle {
        font-size: 15px;
        margin-bottom: 40px;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .categories-grid,
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .page-header h1 {
        font-size: 32px;
    }
    
    .product-filter {
        flex-direction: column;
        align-items: stretch;
        padding: 20px;
    }
    
    .filter-group {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-group select {
        min-width: 100%;
    }
    
    .tab-list {
        flex-wrap: wrap;
    }
    
    .tab-btn {
        padding: 14px 20px;
        font-size: 14px;
    }
    
    .contact-form {
        padding: 28px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .header-top {
        font-size: 12px;
        padding: 8px 0;
    }
    
    .header-contact {
        gap: 16px;
    }
    
    .logo {
        font-size: 18px;
    }
    
    .logo img {
        max-height: 66px;
    }
    
    .hero {
        padding: 48px 0;
    }
    
    .hero h1 {
        font-size: 28px;
    }
    
    .main-image {
        font-size: 120px;
        padding: 24px;
    }
    
    .product-info h1 {
        font-size: 24px;
    }
    
    .contact-form {
        padding: 24px;
    }
    
    .footer-content {
        gap: 32px;
    }
}

/* News Section Styles */
/* ============================================
   NEWS SECTION - Industrial Editorial Design
   ============================================ */

/* News List */
.news-list {
    padding: 60px 0;
    background: linear-gradient(180deg, var(--light-color) 0%, #ffffff 100%);
}

/* Article Title Section */
.article-title-section {
    padding: 40px 0 20px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.article-title-section h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 36px;
    font-weight: 700;
    color: var(--dark-color);
    line-height: 1.3;
    letter-spacing: -0.3px;
    margin-bottom: 16px;
}

.article-date {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: 'Outfit', sans-serif;
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-color);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.article-date::before {
    content: '🗓';
    font-size: 14px;
}

/* Industrial Grid Pattern */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    padding: 0 0 60px;
}

/* News Cards */
.news-card {
    background: white;
    border-radius: 0;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    position: relative;
}

/* Industrial corner brackets */
.news-card::after {
    content: '';
    position: absolute;
    bottom: 12px;
    right: 12px;
    width: 24px;
    height: 24px;
    border-right: 2px solid var(--border-color);
    border-bottom: 2px solid var(--border-color);
    transition: all 0.3s ease;
    opacity: 0.5;
}

.news-card::before {
    content: '';
    position: absolute;
    top: 12px;
    left: 12px;
    width: 24px;
    height: 24px;
    border-left: 2px solid var(--border-color);
    border-top: 2px solid var(--border-color);
    transition: all 0.3s ease;
    opacity: 0.5;
    z-index: 2;
    pointer-events: none;
}

.news-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl), 0 0 0 1px var(--primary-light);
}

.news-card:hover::before,
.news-card:hover::after {
    width: 32px;
    height: 32px;
    border-color: var(--accent-color);
    opacity: 1;
}

.news-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

/* News Image with Industrial Overlay */
.news-image {
    height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--light-color) 0%, var(--light-secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.news-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 60%, rgba(21, 28, 36, 0.1) 100%);
    pointer-events: none;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.news-card:hover .news-image img {
    transform: scale(1.08);
}

/* Industrial Placeholder Icon */
.news-image-placeholder {
    width: 80px;
    height: 80px;
    background: var(--steel-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    box-shadow: 0 4px 20px rgba(30, 58, 95, 0.3);
}

.news-image-placeholder::before {
    content: '⚡';
    font-size: 36px;
    color: var(--accent-light);
}

.news-image-placeholder::after {
    content: '';
    position: absolute;
    inset: -4px;
    border: 2px dashed var(--border-color);
    border-radius: 50%;
    animation: rotate 20s linear infinite;
}

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

/* News Content */
.news-content {
    padding: 28px 32px 32px;
    position: relative;
}

/* Industrial Date Badge */
.news-date {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: 'Outfit', sans-serif;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--accent-color);
    text-transform: uppercase;
    margin-bottom: 14px;
    padding: 6px 12px;
    background: linear-gradient(135deg, rgba(199, 123, 48, 0.1) 0%, rgba(199, 123, 48, 0.05) 100%);
    border-left: 3px solid var(--accent-color);
}

.news-date::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--accent-color);
    border-radius: 50%;
}

.news-content h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 20px;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 12px;
    line-height: 1.35;
    transition: color 0.3s ease;
}

.news-card:hover .news-content h3 {
    color: var(--primary-color);
}

.news-content p {
    font-size: 14px;
    color: var(--gray-color);
    line-height: 1.75;
    margin-bottom: 18px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Read More Link */
.read-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: 'Outfit', sans-serif;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary-color);
    letter-spacing: 0.3px;
    transition: all 0.3s ease;
}

.read-more::after {
    content: '→';
    transition: transform 0.3s ease;
}

.news-card:hover .read-more {
    color: var(--accent-color);
}

.news-card:hover .read-more::after {
    transform: translateX(4px);
}

/* ============================================
   NEWS DETAIL PAGE - Industrial Editorial
   ============================================ */

.news-detail {
    padding: 40px 0 60px;
    background: linear-gradient(180deg, var(--light-color) 0%, #ffffff 200px);
}

.article-detail {
    max-width: 840px;
    margin: 0 auto;
}

/* Article Cover */
.article-cover {
    margin: 0 0 50px;
    position: relative;
    overflow: hidden;
}

.article-cover::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color), var(--primary-color));
    z-index: 2;
}

.article-cover::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(180deg, transparent, rgba(21, 28, 36, 0.05));
    pointer-events: none;
}

.article-cover img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 0;
    box-shadow: var(--shadow-xl);
}

/* Article Body - Editorial Reading Experience */
.article-body {
    font-size: 17px;
    line-height: 1.85;
    color: var(--dark-color);
    padding: 0 40px;
}

/* Article Summary */
.article-summary {
    margin-bottom: 40px;
    padding: 28px 32px;
    background: linear-gradient(135deg, var(--light-color) 0%, var(--light-secondary) 100%);
    border-left: 4px solid var(--accent-color);
    border-radius: 0 8px 8px 0;
}

.article-summary p {
    margin: 0;
    font-size: 18px;
    font-weight: 500;
    color: var(--dark-color);
    line-height: 1.7;
}

.article-content::first-letter {
    font-size: 56px;
    font-weight: 700;
    float: left;
    line-height: 1;
    margin: 8px 16px 0 0;
    color: var(--primary-color);
    font-family: 'Outfit', sans-serif;
}

.article-body p {
    margin-bottom: 28px;
}

.article-body h2 {
    font-family: 'Outfit', sans-serif;
    font-size: 32px;
    font-weight: 700;
    color: var(--dark-color);
    margin: 56px 0 24px;
    padding-bottom: 12px;
    border-bottom: 3px solid var(--accent-color);
    display: inline-block;
}

.article-body h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 24px;
    font-weight: 600;
    color: var(--dark-color);
    margin: 40px 0 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.article-body h3::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 2px;
    transform: rotate(45deg);
}

.article-body ul,
.article-body ol {
    margin: 28px 0;
    padding-left: 0;
    list-style: none;
}

.article-body li {
    margin-bottom: 14px;
    padding-left: 28px;
    position: relative;
}

.article-body li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 8px;
    height: 8px;
    background: var(--steel-gradient);
    border-radius: 2px;
}

.article-body blockquote {
    margin: 40px 0;
    padding: 32px 40px;
    background: linear-gradient(135deg, var(--light-color) 0%, var(--light-secondary) 100%);
    border-left: 4px solid var(--accent-color);
    border-radius: 0 8px 8px 0;
    font-style: italic;
    color: var(--gray-color);
    position: relative;
}

.article-body blockquote::before {
    content: '"';
    position: absolute;
    top: 10px;
    left: 16px;
    font-size: 64px;
    font-family: Georgia, serif;
    color: var(--accent-color);
    opacity: 0.3;
    line-height: 1;
}

/* Article Footer */
.article-footer {
    margin-top: 64px;
    padding: 40px;
    text-align: center;
    background: linear-gradient(135deg, var(--light-color) 0%, var(--light-secondary) 100%);
    border-top: 4px solid var(--primary-color);
    position: relative;
}

.article-footer::before {
    content: '';
    position: absolute;
    top: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--accent-color);
}

/* ============================================
   RESPONSIVE NEWS STYLES
   ============================================ */

@media (max-width: 1024px) {
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .article-title-section {
        padding: 30px 20px 15px;
    }
    
    .article-title-section h1 {
        font-size: 26px;
    }
    
    .article-date {
        font-size: 12px;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    /* Hide corner brackets on mobile */
    .news-card::before,
    .news-card::after {
        display: none;
    }
    
    .news-content {
        padding: 20px 24px 24px;
    }
    
    .news-content h3 {
        font-size: 18px;
    }
    
    .article-cover {
        margin: 0 0 28px;
    }
    
    .article-body {
        padding: 0 20px;
        font-size: 16px;
        line-height: 1.75;
    }
    
    .article-summary {
        margin-bottom: 32px;
        padding: 20px 24px;
    }
    
    .article-summary p {
        font-size: 16px;
    }
    
    /* Disable drop-cap on mobile */
    .article-content::first-letter {
        font-size: inherit;
        float: none;
        margin: 0;
        color: inherit;
    }
    
    .article-body h2 {
        font-size: 24px;
        margin: 40px 0 20px;
    }
    
    .article-body h3 {
        font-size: 20px;
    }
    
    .article-footer {
        margin-top: 48px;
        padding: 32px 20px;
    }
    
    .pagination-wrapper {
        padding: 8px;
        gap: 4px;
    }
    
    .pagination-btn {
        min-width: 36px;
        height: 36px;
        padding: 0 12px;
        font-size: 13px;
    }
}

/* Category Filter Styles */
.category-filter {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.filter-label {
    font-family: 'Outfit', sans-serif;
    font-size: 14px;
    font-weight: 600;
    color: var(--dark-color);
    letter-spacing: 0.3px;
}

.category-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.category-tag {
    display: inline-flex;
    align-items: center;
    padding: 10px 20px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: 'Outfit', sans-serif;
    font-size: 14px;
    font-weight: 500;
    color: var(--dark-color);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.category-tag:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.category-tag.active {
    background: var(--steel-gradient);
    color: white;
    border-color: transparent;
}

/* Pagination Styles */
.pagination {
    margin-top: 48px;
    text-align: center;
}

.pagination-wrapper {
    display: inline-flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 12px;
    background: var(--light-color);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.pagination-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 14px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: 'Outfit', sans-serif;
    font-size: 14px;
    font-weight: 500;
    color: var(--dark-color);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.pagination-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.pagination-btn.active {
    background: var(--steel-gradient);
    color: white;
    border-color: transparent;
}

.pagination-btn.disabled {
    background: var(--light-secondary);
    color: var(--gray-light);
    cursor: not-allowed;
    pointer-events: none;
}

.pagination-info {
    margin-top: 16px;
    font-size: 13px;
    color: var(--gray-color);
}