@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Sarabun:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,300;1,400;1,500;1,600;1,700;1,800&display=swap');

:root {
    /* Theme Colors */
    --primary-dark: hsl(215, 60%, 12%);
    --primary-blue: hsl(215, 50%, 18%);
    --primary-light: hsl(215, 40%, 25%);
    --accent-gold: hsl(38, 75%, 52%);
    --accent-gold-hover: hsl(38, 80%, 45%);
    --accent-copper: hsl(18, 70%, 55%);
    --accent-copper-hover: hsl(18, 75%, 48%);
    --steel-gray: hsl(210, 15%, 96%);
    --steel-border: hsl(210, 15%, 85%);
    --card-bg: hsl(0, 0%, 100%);
    --text-main: hsl(215, 30%, 15%);
    --text-muted: hsl(215, 15%, 45%);
    --text-white: hsl(0, 0%, 100%);
    
    /* Layout constants */
    --max-width: 1200px;
    --border-radius: 12px;
    --transition-speed: 0.3s;
    --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    --box-shadow-hover: 0 15px 35px rgba(0, 0, 0, 0.1);
}

/* Base Reset & Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Sarabun', 'Outfit', sans-serif;
    background-color: var(--steel-gray);
    /* Fixed parallax watermark background of the real factory floor */
    background-image: linear-gradient(rgba(248, 250, 252, 0.94) 0%, rgba(248, 250, 252, 0.94) 100%), url('factory_inside_1.jpg');
    background-attachment: fixed;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Layout Utilities */
.container {
    width: 90%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1.5rem 0;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

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

.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

.section {
    padding: 6.5rem 0;
}

.section-dark {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-blue) 100%);
    color: var(--text-white);
}

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

/* Header & Navigation Bar (Cyan-Blue Gradient) */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: linear-gradient(90deg, rgba(11, 34, 64, 0.9) 0%, rgba(23, 66, 118, 0.9) 35%, rgba(0, 136, 204, 0.9) 100%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 88, 179, 0.15);
    border-bottom: 1.5px solid rgba(255, 255, 255, 0.15);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 0;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.logo-img {
    height: 42px;
    width: auto;
    filter: invert(1); /* Inverts white background to black, and black lines to white */
    mix-blend-mode: screen; /* Makes the black background transparent, showing only the white logo lines */
    transition: transform var(--transition-speed) ease;
}

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

.logo-text-block {
    display: flex;
    flex-direction: column;
    color: var(--text-white);
}

.logo-text-block .logo-main {
    font-family: 'Outfit', sans-serif;
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: 0.5px;
    color: var(--text-white);
    line-height: 1.1;
}

.logo-text-block .logo-sub {
    font-size: 0.68rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.85);
    margin-top: 1px;
}

.hero-logo-img {
    height: 80px;
    width: auto;
    mix-blend-mode: multiply; /* Makes the white background transparent, keeping the black logo lines */
}

.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 1.6rem;
}

.nav-item a {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 600;
    font-size: 0.95rem;
    position: relative;
    padding: 0.4rem 0;
}

.nav-item a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 3px;
    background-color: var(--accent-gold);
    transition: width var(--transition-speed) ease;
}

.nav-item a:hover::after,
.nav-item.active a::after {
    width: 100%;
}

.nav-item a:hover {
    color: var(--text-white);
}

.nav-cta {
    background: linear-gradient(135deg, var(--accent-gold) 0%, hsl(38, 80%, 43%) 100%);
    color: var(--primary-dark) !important;
    padding: 0.5rem 1.1rem;
    border-radius: 6px;
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(234, 161, 25, 0.25);
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease !important;
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(234, 161, 25, 0.35);
}

.nav-cta::after {
    display: none !important;
}

/* Language selector */
.lang-selector {
    display: flex;
    gap: 0.4rem;
    align-items: center;
    margin-left: 0.5rem;
    border-left: 1px solid rgba(255,255,255,0.2);
    padding-left: 1rem;
}

.lang-flag {
    width: 20px;
    height: 14px;
    object-fit: cover;
    border-radius: 1px;
    border: 1px solid rgba(255,255,255,0.4);
    cursor: pointer;
    transition: transform 0.2s;
}

.lang-flag:hover {
    transform: scale(1.15);
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-white);
    font-size: 1.4rem;
    cursor: pointer;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 1.6rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    border: none;
    font-size: 0.95rem;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-gold) 0%, hsl(38, 80%, 43%) 100%);
    color: var(--primary-dark);
    box-shadow: 0 8px 20px rgba(234, 161, 25, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(234, 161, 25, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--text-white);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.8);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
    box-shadow: none;
}

.btn-outline:hover {
    background: rgba(11, 34, 64, 0.04);
    color: var(--primary-light);
    border-color: var(--primary-light);
    transform: translateY(-2px);
}

.btn-dark {
    background: var(--primary-blue);
    color: var(--text-white);
    box-shadow: 0 8px 20px rgba(10, 25, 47, 0.1);
}

.btn-dark:hover {
    transform: translateY(-2px);
    background: var(--primary-light);
}

.hero-btns {
    display: flex;
    gap: 1.25rem;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

.hero-sky-slider {
    position: relative;
    height: 80vh;
    min-height: 560px;
    width: 100%;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 3.5px solid var(--accent-gold);
    padding-top: 5rem;
}

.hero-slide-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    z-index: 1;
}

.hero-slide-bg.active {
    opacity: 1;
}

.hero-slider-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(11, 34, 64, 0.85) 0%, rgba(11, 34, 64, 0.65) 100%);
    z-index: 2;
}

.hero-slider-container {
    position: relative;
    z-index: 3;
    width: 90%;
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: center;
}

.hero-slider-content {
    max-width: 850px;
    color: var(--text-white);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.hero-slider-content .hero-sky-logo {
    justify-content: center;
    margin-bottom: 1.5rem;
}

.hero-slider-title {
    font-family: 'Sarabun', sans-serif;
    font-size: 1.55rem;
    font-weight: 700;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.95);
    text-shadow: 0 2px 5px rgba(0,0,0,0.6);
    margin-bottom: 1.5rem;
    max-width: 800px;
}

.hero-logo-img.filter-white {
    filter: brightness(0) invert(1);
    mix-blend-mode: normal;
}

/* Interactive Gallery styling */
.hero-gallery {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    width: 100%;
    max-width: 620px;
    animation: fadeInUp 0.8s ease-out;
}

.hero-gallery-main-wrapper {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    border: 5px solid white;
    box-shadow: 0 15px 35px rgba(11, 34, 64, 0.15);
    background: #e2e8f0;
}

.hero-gallery-main {
    width: 100%;
    height: 320px;
    object-fit: cover;
    display: block;
    transition: opacity 0.25s ease-in-out;
}

.carousel-dots {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
}

.carousel-dots .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: all 0.25s ease;
    border: 1px solid rgba(0, 0, 0, 0.15);
}

.carousel-dots .dot:hover {
    background: rgba(255, 255, 255, 0.85);
}

.carousel-dots .dot.active {
    background: var(--accent-gold);
    width: 24px;
    border-radius: 10px;
    border-color: rgba(234, 161, 25, 0.2);
}

.hero-gallery-thumb.active {
    opacity: 1;
    border-color: var(--accent-gold);
    box-shadow: 0 4px 12px rgba(234, 161, 25, 0.25);
    transform: scale(1.02);
}

/* Sub-Hero (For inner pages) */
.sub-hero {
    padding-top: 7.5rem;
    padding-bottom: 3.5rem;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-blue) 100%);
    color: var(--text-white);
    border-bottom: 2px solid var(--accent-gold);
}

.sub-hero-title {
    font-family: 'Outfit', 'Sarabun', sans-serif;
    font-weight: 700;
    font-size: 2rem;
}

.sub-hero-breadcrumbs {
    font-size: 0.85rem;
    opacity: 0.7;
    margin-top: 0.3rem;
}

.sub-hero-breadcrumbs span {
    color: var(--accent-gold);
}

/* Trust Bar / Certifications */
.trust-bar {
    background: var(--card-bg);
    border-bottom: 1px solid var(--steel-border);
    padding: 2.2rem 0;
}

.trust-wrapper {
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--card-bg);
    border: 1px solid var(--steel-border);
    padding: 0.9rem 1.6rem;
    border-radius: 10px;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    box-shadow: 0 4px 10px rgba(0,0,0,0.02);
}

.trust-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(11, 34, 64, 0.08);
    border-color: var(--accent-gold);
}

.trust-badge-icon {
    font-size: 1.8rem;
    color: var(--primary-blue);
}

.trust-text {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--primary-blue);
    display: flex;
    flex-direction: column;
}

.trust-text span {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-weight: 500;
    font-family: 'Sarabun', sans-serif;
}

.iso-badge {
    border: 2px solid var(--primary-blue);
    padding: 0.2rem 0.6rem;
    font-weight: 800;
    font-family: 'Outfit', sans-serif;
    border-radius: 4px;
    font-size: 0.85rem;
    color: var(--primary-blue);
    background: rgba(10, 25, 47, 0.01);
}

/* Split Main Container (Home page layout matching reference) */
.split-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 2.5rem;
    padding: 4rem 0;
}

/* Sidebar Columns (Hotline, Delivery, Cert) */
.home-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.8rem;
}

.sidebar-card {
    background: var(--card-bg);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
    border: 1px solid var(--steel-border);
    transition: all var(--transition-speed) ease;
}

.sidebar-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.05);
    border-color: rgba(11, 34, 64, 0.15);
}

.sidebar-card-header {
    padding: 0.85rem 1.25rem;
    font-weight: 800;
    color: var(--primary-blue);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 1px solid var(--steel-border);
    background: #f8fafc;
}

.sidebar-card-body {
    padding: 1.25rem;
    text-align: center;
}

.sidebar-hotline-num {
    font-family: 'Outfit', sans-serif;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--primary-blue);
    margin: 0.4rem 0;
    line-height: 1.2;
}

.sidebar-hotline-desc {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.sidebar-delivery-img {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 0.6rem;
}

.sidebar-delivery-title {
    font-weight: 700;
    font-size: 1rem;
    color: var(--primary-blue);
    margin-bottom: 0.3rem;
}

.sidebar-delivery-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.sidebar-cert-img {
    border: 1px solid var(--steel-border);
    padding: 0.4rem;
    border-radius: 4px;
    background: #f8fafc;
    max-width: 100%;
    margin-bottom: 0.6rem;
}

.sidebar-cert-title {
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--primary-blue);
}

/* Right Content Column */
.main-content-right {
    display: flex;
    flex-direction: column;
}

.company-welcome-title {
    font-size: 1.6rem;
    font-weight: 800;
    color: #0056b3;
    margin-bottom: 1rem;
    position: relative;
    padding-bottom: 0.4rem;
}

.company-welcome-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: #0088cc;
}

.company-welcome-desc {
    font-size: 0.98rem;
    line-height: 1.7;
    color: var(--text-main);
    margin-bottom: 1.2rem;
    text-align: justify;
}

.company-policy-quote {
    background: rgba(11, 34, 64, 0.03);
    border-left: 4px solid var(--accent-gold);
    padding: 0.8rem 1.2rem;
    margin: 1.5rem 0;
    font-size: 1.05rem;
    font-weight: 800;
    color: var(--primary-blue);
    border-radius: 0 6px 6px 0;
}

/* 6-Card Category Grid */
.product-category-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-top: 1rem;
}

.category-card {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    height: 160px;
    box-shadow: var(--box-shadow);
    border: 1.5px solid var(--steel-border);
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--box-shadow-hover);
    border-color: rgba(0, 136, 204, 0.3);
}

.category-card.text-only {
    background: linear-gradient(135deg, #f8fafc 0%, #cbd5e1 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 1rem;
}

.category-card-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: transform 0.5s ease;
}

.category-card:hover .category-card-bg {
    transform: scale(1.08);
}

.category-card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(10, 30, 60, 0.85) 0%, rgba(10, 30, 60, 0.3) 60%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1rem;
    color: var(--text-white);
}

.category-card-icon {
    font-size: 1.6rem;
    color: var(--accent-gold);
    margin-bottom: 0.4rem;
}

.category-card-title {
    font-weight: 700;
    font-size: 0.98rem;
}

/* Sections titles general */
.section-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    display: block;
    width: 50px;
    height: 4px;
    background-color: var(--accent-gold);
    margin: 0.6rem auto 0 auto;
    border-radius: 2px;
}

.section-title-left {
    text-align: left;
}

.section-title-left::after {
    margin: 0.6rem 0 0 0;
}

.section-subtitle {
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 2.5rem auto;
    font-size: 1rem;
}

.section-subtitle-left {
    margin: 0 0 2.5rem 0;
    text-align: left;
}

/* Cards generic */
.card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 2rem 1.5rem;
    box-shadow: var(--box-shadow);
    transition: all var(--transition-speed) ease;
    border: 1px solid var(--steel-border);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--box-shadow-hover);
    border-color: rgba(234, 161, 25, 0.3);
}

.card-icon {
    font-size: 2.2rem;
    color: var(--accent-gold);
    margin-bottom: 1.2rem;
}

.card-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
}

.card-text {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Timeline Flow (Process page) */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 4px;
    background: var(--steel-border);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    width: 50%;
    padding: 1.5rem;
    box-sizing: border-box;
}

.timeline-item:nth-child(odd) {
    left: 0;
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
    text-align: left;
}

.timeline-badge {
    position: absolute;
    top: 1.5rem;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary-blue);
    border: 4px solid var(--steel-gray);
    color: var(--text-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-family: 'Outfit', sans-serif;
    font-size: 1rem;
    z-index: 5;
}

.timeline-item:nth-child(odd) .timeline-badge {
    right: -18px;
}

.timeline-item:nth-child(even) .timeline-badge {
    left: -18px;
}

.timeline-content {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    border: 1px solid var(--steel-border);
}

.timeline-step {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    color: var(--accent-gold);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.3rem;
}

.timeline-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
}

.timeline-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Portfolio Filter Grid */
.filter-container {
    display: flex;
    justify-content: center;
    gap: 0.8rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1.25rem;
    border: 1px solid var(--steel-border);
    background: var(--card-bg);
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all var(--transition-speed) ease;
}

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

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.8rem;
}

.portfolio-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    border: 1px solid var(--steel-border);
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.portfolio-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--box-shadow-hover);
}

.portfolio-img {
    height: 220px;
    background-size: cover;
    background-position: center;
    position: relative;
}

.portfolio-img-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    padding: 0.4rem 0.8rem;
    background: rgba(10, 25, 47, 0.75);
    color: var(--text-white);
    font-size: 0.75rem;
    font-weight: 600;
    border-top-right-radius: 6px;
}

.portfolio-content {
    padding: 1.25rem;
}

.portfolio-material {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.3rem;
}

.portfolio-material.brass { color: var(--accent-gold); }
.portfolio-material.steel { color: var(--primary-blue); }
.portfolio-material.copper { color: var(--accent-copper); }

.portfolio-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
}

.portfolio-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.nda-notice {
    background: rgba(10, 25, 47, 0.02);
    border-left: 4px solid var(--accent-gold);
    padding: 1.2rem;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    margin-top: 3.5rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Quality Assurance Details */
.qc-badge {
    background: linear-gradient(135deg, rgba(234, 161, 25, 0.08) 0%, rgba(234, 161, 25, 0.01) 100%);
    border: 1.5px solid var(--accent-gold);
    padding: 2rem;
    border-radius: var(--border-radius);
    margin-bottom: 2.5rem;
}

.qc-badge-title {
    font-size: 1.45rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 0.8rem;
}

.qc-badge-quote {
    font-style: italic;
    font-size: 1.2rem;
    color: var(--accent-gold);
    font-weight: 700;
    margin-bottom: 0.8rem;
}

.equipment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3.5rem;
}

.equipment-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 0;
    border: 1px solid var(--steel-border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(11, 34, 64, 0.02);
    transition: all var(--transition-speed) ease;
}

.equipment-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(11, 34, 64, 0.06);
    border-color: var(--accent-gold);
}

.equipment-img-wrapper {
    height: 180px;
    overflow: hidden;
    border-bottom: 1px solid var(--steel-border);
}

.equipment-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    cursor: zoom-in;
    transition: transform 0.5s ease;
}

.equipment-card:hover .equipment-img-wrapper img {
    transform: scale(1.05);
}

.equipment-info {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.equipment-name {
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--primary-blue);
    margin-bottom: 0.2rem;
}

.equipment-desc {
    font-size: 0.85rem;
    color: var(--text-main);
    line-height: 1.6;
    text-align: justify;
}

/* Contact Details & Forms */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3.5rem;
}

.contact-card {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    border: 1px solid var(--steel-border);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 2rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.8rem;
}

.contact-info-block {
    display: flex;
    gap: 1rem;
}

.contact-info-icon {
    font-size: 1.6rem;
    color: var(--accent-gold);
}

.contact-info-content h4 {
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 0.2rem;
}

.contact-info-content p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.contact-map {
    height: 350px;
    background: #e2e8f0;
    border-radius: var(--border-radius);
    border: 1px solid var(--steel-border);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.contact-map-canvas {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e1 100%);
}

.contact-map-marker {
    position: absolute;
    width: 18px;
    height: 18px;
    background: var(--accent-gold);
    border: 3px solid white;
    border-radius: 50%;
    z-index: 5;
    box-shadow: 0 0 10px rgba(0,0,0,0.3);
}

.contact-map-marker::after {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    width: 22px;
    height: 22px;
    border: 2px solid var(--accent-gold);
    border-radius: 50%;
    animation: ripple 1.5s infinite;
}

.contact-map-label {
    position: absolute;
    background: rgba(10, 25, 47, 0.95);
    color: var(--text-white);
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    font-size: 0.72rem;
    font-weight: 600;
    top: calc(50% - 38px);
    z-index: 5;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

/* RFQ form style */
.rfq-form-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    box-shadow: var(--box-shadow);
    border: 1px solid var(--steel-border);
}

.form-group-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    margin-bottom: 1.25rem;
}

.form-group {
    margin-bottom: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-group label {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--primary-blue);
}

.form-control {
    padding: 0.75rem 1.1rem;
    border: 1.5px solid var(--steel-border);
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.9rem;
    outline: none;
    transition: all var(--transition-speed) ease;
}

.form-control:focus {
    border-color: var(--accent-gold);
    box-shadow: 0 0 0 3px rgba(234, 161, 25, 0.12);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

/* File Upload drag wrapper */
.file-upload-wrapper {
    position: relative;
    border: 2px dashed var(--steel-border);
    border-radius: var(--border-radius);
    padding: 1.25rem;
    text-align: center;
    background: rgba(10, 25, 47, 0.005);
    transition: all var(--transition-speed) ease;
    cursor: pointer;
}

.file-upload-wrapper:hover {
    border-color: var(--accent-gold);
    background: rgba(234, 161, 25, 0.01);
}

.file-upload-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.file-upload-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-muted);
}

.file-upload-icon {
    font-size: 1.8rem;
    color: var(--primary-blue);
}

.file-upload-text {
    font-weight: 600;
    font-size: 0.85rem;
}

.file-upload-hint {
    font-size: 0.72rem;
}

/* Footer layout details */
footer {
    background: var(--primary-dark);
    color: var(--text-white);
    padding: 4.5rem 0 2rem 0;
    border-top: 2px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 2.5rem;
    margin-bottom: 3.5rem;
}

.footer-about .logo {
    margin-bottom: 1.25rem;
}

.footer-about p {
    color: rgba(255, 255, 255, 0.65);
    font-size: 0.85rem;
    margin-bottom: 1.25rem;
}

.footer-title {
    font-family: 'Outfit', sans-serif;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--accent-gold);
    margin-bottom: 1.25rem;
    letter-spacing: 0.5px;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.65);
    font-size: 0.85rem;
    transition: color var(--transition-speed) ease, padding-left var(--transition-speed) ease;
}

.footer-links a:hover {
    color: var(--accent-gold);
    padding-left: 4px;
}

.footer-contact-item {
    display: flex;
    gap: 0.7rem;
    margin-bottom: 0.8rem;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.65);
}

.footer-contact-icon {
    color: var(--accent-gold);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 1.8rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    color: rgba(255, 255, 255, 0.45);
    font-size: 0.78rem;
}

/* Animations declarations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes ripple {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(2);
        opacity: 0;
    }
}

/* Responsive Media Queries */
@media (max-width: 992px) {
    html {
        font-size: 15px;
    }
    
    .split-layout {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .home-sidebar {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .sidebar-card {
        flex: 1 1 240px;
        max-width: 320px;
    }

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

    .contact-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-card {
        padding: 1.75rem;
        gap: 1.5rem;
    }
    
    .contact-map {
        height: 260px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
    
    .timeline::before {
        left: 18px;
    }
    
    .timeline-item {
        width: 100%;
        padding-left: 45px;
        padding-right: 0;
        left: 0 !important;
        text-align: left !important;
    }
    
    .timeline-badge {
        left: 0 !important;
        right: auto !important;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--primary-dark);
        padding: 1.5rem;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        gap: 1.25rem;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .hero-sky-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .hero-sky-logo {
        justify-content: center;
    }
    
    .hero-factory-container {
        justify-content: center;
    }
    
    .hero-slogan-title {
        font-size: 1.95rem;
    }
    
    .form-group-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
}

@media (max-width: 480px) {
    .product-category-grid {
        grid-template-columns: 1fr;
    }
    
    .home-sidebar {
        flex-direction: column;
        align-items: center;
    }
    
    .sidebar-card {
        width: 100%;
        max-width: 100%;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

.sidebar-cert-click {
    transition: transform var(--transition-speed) ease, background var(--transition-speed) ease;
}

.sidebar-cert-click:hover {
    transform: translateY(-3px);
    background: rgba(22, 163, 74, 0.03);
}

.sidebar-cert-click:hover .sidebar-cert-doc-img {
    transform: scale(1.03);
}

/* Trust Item Interactivity */
.trust-item {
    cursor: pointer;
    transition: transform var(--transition-speed) ease, background var(--transition-speed) ease;
    padding: 0.5rem 0.8rem;
    border-radius: 6px;
}

.trust-item:hover {
    transform: translateY(-2px);
    background: rgba(0, 88, 179, 0.05);
}

/* Trust Modal Overlay */
.trust-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(10, 25, 47, 0.85);
    backdrop-filter: blur(10px);
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.trust-modal.active {
    display: flex;
    opacity: 1;
}

/* Trust Modal Content Box */
.trust-modal-content {
    background: white;
    width: 90%;
    max-width: 580px;
    padding: 3rem 2.5rem;
    border-radius: 16px;
    border: 3px solid var(--accent-gold);
    position: relative;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
    animation: zoomIn 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.trust-modal-close {
    position: absolute;
    top: 1rem;
    right: 1.25rem;
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-muted);
    cursor: pointer;
    line-height: 1;
    transition: color 0.2s;
}

.trust-modal-close:hover {
    color: #dc2626;
}

@keyframes zoomIn {
    from {
        transform: scale(0.92);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.wcu-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(11, 34, 64, 0.08) !important;
    border-color: var(--accent-gold) !important;
}

/* Z-Pattern alternating process steps layout */
.process-step-container {
    display: flex;
    flex-direction: column;
    margin-top: 3.5rem;
}

.process-step-row {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 4.5rem;
    align-items: center;
    margin-bottom: 5.5rem;
}

.process-step-row.reverse {
    grid-template-columns: 0.85fr 1.15fr;
}

.process-step-row.reverse .process-step-card {
    order: 2;
}

.process-step-row.reverse .process-step-img-wrapper {
    order: 1;
}

.process-step-card {
    background: var(--card-bg);
    border: 1px solid var(--steel-border);
    padding: 2.2rem;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(11, 34, 64, 0.03);
    position: relative;
    transition: all var(--transition-speed) ease;
}

.process-step-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 40px rgba(11, 34, 64, 0.08);
    border-color: var(--accent-gold);
}

.process-step-badge {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-gold) 0%, hsl(38, 80%, 43%) 100%);
    color: var(--primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    margin-bottom: 1.25rem;
    box-shadow: 0 6px 15px rgba(234, 161, 25, 0.2);
}

.process-step-label {
    font-family: 'Outfit', sans-serif;
    font-weight: 800;
    color: var(--text-muted);
    font-size: 0.85rem;
    letter-spacing: 2px;
    display: block;
    margin-bottom: 0.4rem;
}

.process-step-title {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--primary-blue);
    margin-bottom: 0.8rem;
}

.process-step-desc {
    font-size: 0.88rem;
    color: var(--text-main);
    line-height: 1.7;
    text-align: justify;
}

.process-step-img-wrapper {
    border-radius: 12px;
    overflow: hidden;
    border: 5px solid white;
    box-shadow: var(--box-shadow);
    height: 280px;
}

.process-step-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}

.process-step-img-wrapper:hover img {
    transform: scale(1.05);
}

@media (max-width: 768px) {
    .process-step-row, .process-step-row.reverse {
        grid-template-columns: 1fr;
        gap: 2.2rem;
        margin-bottom: 4rem;
    }
    .process-step-row.reverse .process-step-card {
        order: 1;
    }
    .process-step-row.reverse .process-step-img-wrapper {
        order: 2;
    }
    .process-step-img-wrapper {
        height: 220px;
    }
}
/* Customer Hero Slider styling */
.customer-hero-slider {
    position: relative;
    height: 380px;
    width: 100%;
    overflow: hidden;
}

.cust-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.8s ease-in-out, visibility 0.8s ease-in-out;
    z-index: 1;
}

.cust-slide.active {
    opacity: 1;
    visibility: visible;
    z-index: 2;
}

.cust-slide-content {
    text-align: center;
    color: white;
    max-width: 800px;
    padding: 0 2rem;
    z-index: 5;
    transform: translateY(20px);
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.cust-slide.active .cust-slide-content {
    transform: translateY(0);
}

.cust-slide-logo-wrapper {
    background: #ffffff;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem auto;
    padding: 1rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    border: 3px solid rgba(255,255,255,0.8);
}

.cust-slide-logo-wrapper img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.cust-slide-name {
    font-size: 1.4rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 0.8rem;
    letter-spacing: 1px;
    text-shadow: 0 2px 8px rgba(0,0,0,0.4);
}

.cust-slide-desc {
    font-size: 0.95rem;
    color: rgba(255,255,255,0.9);
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

/* Arrows */
.cust-slide-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.1);
    color: #ffffff;
    border: 1px solid rgba(255,255,255,0.2);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.cust-slide-arrow:hover {
    background: var(--accent-gold);
    border-color: var(--accent-gold);
    transform: translateY(-50%) scale(1.05);
}

.cust-slide-arrow.prev {
    left: 2rem;
}

.cust-slide-arrow.next {
    right: 2rem;
}

/* Dots indicator */
.cust-slide-dots {
    position: absolute;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.6rem;
    z-index: 10;
}

.cust-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: all 0.3s ease;
}

.cust-dot.active {
    background: var(--accent-gold);
    width: 25px;
    border-radius: 10px;
}

@media (max-width: 768px) {
    .cust-slide-name {
        font-size: 1.1rem;
    }
    .cust-slide-desc {
        font-size: 0.85rem;
    }
    .cust-slide-logo-wrapper {
        width: 100px;
        height: 100px;
        margin-bottom: 1rem;
    }
    .cust-slide-arrow {
        width: 40px;
        height: 40px;
    }
    .cust-slide-arrow.prev {
        left: 1rem;
    }
    .cust-slide-arrow.next {
        right: 1rem;
    }
}