/* ============================================
   StarStrong Bearing - Industrial B2B Website
   Design System & Components
   ============================================ */

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

:root {
    /* Brand Colors - Industrial Blue */
    --primary: #0B4F8A;
    --primary-dark: #073459;
    --primary-light: #1a6fc4;
    --primary-lighter: #e8f1fa;
    --accent: #FF6B1A;
    --accent-dark: #e55a0e;
    
    /* Neutrals */
    --dark: #1a1f2e;
    --gray-900: #2d3340;
    --gray-700: #4a5160;
    --gray-500: #7a8294;
    --gray-300: #c5cad4;
    --gray-100: #eef1f5;
    --gray-50: #f7f9fc;
    --white: #ffffff;
    
    /* Semantic */
    --success: #2ba853;
    --bg-section: #f7f9fc;
    --border: #e2e8f0;
    
    /* Typography */
    --font-sans: 'Inter', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    --font-head: 'Poppins', 'Inter', 'Segoe UI', sans-serif;
    
    /* Spacing */
    --container: 1200px;
    --radius: 10px;
    --radius-sm: 6px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow: 0 4px 16px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-sans);
    color: var(--gray-900);
    background: var(--white);
    line-height: 1.7;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-head);
    font-weight: 700;
    line-height: 1.3;
    color: var(--dark);
}

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

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

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

ul { list-style: none; }

/* ---------- Layout Utilities ---------- */
.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

.section { padding: 80px 0; }
.section-sm { padding: 56px 0; }
.section-bg { background: var(--bg-section); }

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 56px;
}

.section-header .eyebrow {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--primary);
    background: var(--primary-lighter);
    padding: 6px 16px;
    border-radius: 30px;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 2.2rem;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.05rem;
    color: var(--gray-500);
}

.grid { display: grid; gap: 28px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    font-family: var(--font-head);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(11,79,138,0.3);
}

.btn-accent {
    background: var(--accent);
    color: var(--white);
    border-color: var(--accent);
}

.btn-accent:hover {
    background: var(--accent-dark);
    border-color: var(--accent-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255,107,26,0.3);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.5);
}

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

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

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

.btn-lg { padding: 16px 40px; font-size: 1rem; }

/* ---------- Top Bar ---------- */
.topbar {
    background: var(--primary-dark);
    color: rgba(255,255,255,0.8);
    font-size: 0.82rem;
    padding: 8px 0;
}

.topbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.topbar-info {
    display: flex;
    gap: 24px;
    align-items: center;
}

.topbar-info span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.topbar-info svg { width: 14px; height: 14px; opacity: 0.7; }

.topbar-links { display: flex; gap: 20px; }
.topbar-links a { color: rgba(255,255,255,0.8); }
.topbar-links a:hover { color: var(--white); }

/* ---------- Header / Navigation ---------- */
.header {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: box-shadow var(--transition);
}

.header.scrolled { box-shadow: var(--shadow); }

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 76px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-mark {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.logo-mark svg { width: 28px; height: 28px; }

.logo-text {
    font-family: var(--font-head);
    font-weight: 800;
    font-size: 1.3rem;
    color: var(--dark);
    line-height: 1.2;
}

.logo-text span { color: var(--primary); }

.logo-sub {
    font-size: 0.7rem;
    color: var(--gray-500);
    font-weight: 400;
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    gap: 4px;
    align-items: center;
}

.nav-menu > li > a {
    display: block;
    padding: 10px 18px;
    font-weight: 600;
    font-size: 0.92rem;
    color: var(--gray-700);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.nav-menu > li > a:hover,
.nav-menu > li > a.active {
    color: var(--primary);
    background: var(--primary-lighter);
}

.nav-cta { margin-left: 12px; }

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    flex-direction: column;
    gap: 5px;
}

.nav-toggle span {
    width: 26px;
    height: 3px;
    background: var(--dark);
    border-radius: 3px;
    transition: all var(--transition);
}

.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(6px, 6px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(6px, -6px); }

/* ---------- Hero ---------- */
.hero {
    position: relative;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
    color: var(--white);
    overflow: hidden;
    padding: 100px 0 120px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: 
        radial-gradient(circle at 80% 20%, rgba(255,255,255,0.08) 0%, transparent 50%),
        radial-gradient(circle at 20% 80%, rgba(255,107,26,0.1) 0%, transparent 40%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -1px; left: 0; right: 0;
    height: 60px;
    background: var(--white);
    clip-path: polygon(0 100%, 100% 100%, 100% 0, 0 60%);
}

.hero .container {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}

.hero-content h1 {
    color: var(--white);
    font-size: 3rem;
    line-height: 1.15;
    margin-bottom: 20px;
}

.hero-content h1 .highlight {
    color: #FFD15C;
    position: relative;
}

.hero-content .lead {
    font-size: 1.15rem;
    color: rgba(255,255,255,0.85);
    margin-bottom: 32px;
    max-width: 520px;
}

.hero-badges {
    display: flex;
    gap: 24px;
    margin-bottom: 36px;
    flex-wrap: wrap;
}

.hero-badge {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.9);
}

.hero-badge svg { width: 20px; height: 20px; color: #FFD15C; }

.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-stats {
    display: flex;
    gap: 40px;
    margin-top: 48px;
    padding-top: 36px;
    border-top: 1px solid rgba(255,255,255,0.15);
}

.hero-stat .num {
    font-family: var(--font-head);
    font-size: 2rem;
    font-weight: 800;
    color: #FFD15C;
    line-height: 1;
}

.hero-stat .label {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.7);
    margin-top: 4px;
}

/* Hero Visual - Bearing SVG */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-bearing {
    width: 420px;
    height: 420px;
    animation: spin 20s linear infinite;
    filter: drop-shadow(0 20px 60px rgba(0,0,0,0.3));
}

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

.hero-orbit {
    position: absolute;
    border: 1px dashed rgba(255,255,255,0.15);
    border-radius: 50%;
}

.hero-orbit-1 { width: 520px; height: 520px; animation: spin 30s linear infinite; }
.hero-orbit-2 { width: 580px; height: 580px; animation: spin 40s linear infinite reverse; }

/* ---------- Trust Bar ---------- */
.trust-bar {
    background: var(--white);
    padding: 40px 0;
    border-bottom: 1px solid var(--border);
}

.trust-bar .container {
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--gray-700);
}

.trust-item svg { width: 32px; height: 32px; color: var(--primary); }

.trust-item .label {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--dark);
}

.trust-item .sub {
    font-size: 0.8rem;
    color: var(--gray-500);
}

/* ---------- Product Category Cards ---------- */
.cat-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
    cursor: pointer;
}

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

.cat-card-img {
    height: 240px;
    background: linear-gradient(135deg, var(--primary-lighter), var(--gray-50));
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.cat-card-img svg { width: 130px; height: 130px; transition: transform var(--transition); }
.cat-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition); }

.cat-card:hover .cat-card-img svg { transform: scale(1.1) rotate(5deg); }
.cat-card:hover .cat-card-img img { transform: scale(1.06); }

.cat-card-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--accent);
    color: var(--white);
    font-size: 0.72rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 20px;
}

.cat-card-body { padding: 28px; }

.cat-card-body h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
}

.cat-card-body p {
    font-size: 0.92rem;
    color: var(--gray-500);
    margin-bottom: 16px;
}

.cat-card-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.cat-card-features li {
    font-size: 0.78rem;
    color: var(--gray-700);
    background: var(--gray-100);
    padding: 4px 12px;
    border-radius: 20px;
}

.cat-card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--primary);
}

.cat-card-link svg { width: 16px; height: 16px; transition: transform var(--transition); }
.cat-card:hover .cat-card-link svg { transform: translateX(4px); }

/* ---------- Features / Why Choose Us ---------- */
.feature-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 32px;
    border: 1px solid var(--border);
    transition: all var(--transition);
    text-align: center;
}

.feature-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow);
    transform: translateY(-4px);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: var(--primary-lighter);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

.feature-card:hover .feature-icon {
    background: var(--primary);
}

.feature-icon svg { width: 32px; height: 32px; color: var(--primary); transition: color var(--transition); }
.feature-card:hover .feature-icon svg { color: var(--white); }

.feature-card h3 { font-size: 1.1rem; margin-bottom: 10px; }
.feature-card p { font-size: 0.9rem; color: var(--gray-500); }

/* ---------- Process / Steps ---------- */
.process-step {
    text-align: center;
    position: relative;
}

.process-step-num {
    width: 56px;
    height: 56px;
    margin: 0 auto 20px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-head);
    font-size: 1.3rem;
    font-weight: 800;
    position: relative;
    z-index: 2;
}

.process-step::after {
    content: '';
    position: absolute;
    top: 28px;
    right: -50%;
    width: 100%;
    height: 2px;
    background: var(--gray-300);
    z-index: 1;
}

.process-step:last-child::after { display: none; }

.process-step h3 { font-size: 1.05rem; margin-bottom: 8px; }
.process-step p { font-size: 0.88rem; color: var(--gray-500); }

/* ---------- CTA Section ---------- */
.cta-section {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: var(--white);
    text-align: center;
    padding: 72px 0;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(255,255,255,0.06) 0%, transparent 60%);
}

.cta-section .container { position: relative; z-index: 2; }

.cta-section h2 {
    color: var(--white);
    font-size: 2.2rem;
    margin-bottom: 16px;
}

.cta-section p {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.85);
    margin-bottom: 32px;
}

.cta-section .hero-cta { justify-content: center; }

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

.about-visual {
    position: relative;
}

.about-visual-img {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary-lighter), var(--gray-100));
    height: 420px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
}

.about-visual-img svg { width: 80%; height: 80%; }
.about-visual-img img { width: 100%; height: 100%; object-fit: cover; }

.about-experience {
    position: absolute;
    bottom: -24px;
    right: -24px;
    background: var(--accent);
    color: var(--white);
    padding: 24px 32px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.about-experience .num {
    font-family: var(--font-head);
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1;
}

.about-experience .label { font-size: 0.85rem; opacity: 0.9; }

.about-content h2 { font-size: 2rem; margin-bottom: 20px; }

.about-content p {
    color: var(--gray-500);
    margin-bottom: 16px;
}

.about-list {
    margin: 24px 0;
}

.about-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 14px;
    font-size: 0.95rem;
    color: var(--gray-700);
}

.about-list svg {
    width: 22px;
    height: 22px;
    color: var(--success);
    flex-shrink: 0;
    margin-top: 2px;
}

/* ---------- Grid Layouts ---------- */
.cat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.about-preview {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    height: 420px;
    background: linear-gradient(135deg, var(--primary-lighter), var(--gray-100));
}

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

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 12px;
}

.eyebrow {
    display: inline-block;
    color: var(--primary);
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.hero-image img {
    width: 420px;
    height: 420px;
    object-fit: cover;
    border-radius: 50%;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    border: 8px solid rgba(255,255,255,0.1);
}

.feature-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    transition: all var(--transition);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: var(--primary-lighter);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

.feature-card:hover .feature-icon {
    background: var(--primary);
}

.feature-icon svg {
    width: 32px;
    height: 32px;
    color: var(--primary);
    transition: color var(--transition);
}

.feature-card:hover .feature-icon svg { color: var(--white); }

.feature-card h3 { font-size: 1.1rem; margin-bottom: 10px; }
.feature-card p { font-size: 0.9rem; color: var(--gray-500); }

@media (max-width: 992px) {
    .cat-grid { grid-template-columns: repeat(2, 1fr); }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .process-grid { grid-template-columns: repeat(2, 1fr); }
    .about-preview { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 600px) {
    .cat-grid { grid-template-columns: 1fr; }
    .features-grid { grid-template-columns: 1fr; }
    .process-grid { grid-template-columns: 1fr; }
    .about-image { height: 280px; }
}


/* ---------- Products Page ---------- */
.page-hero {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: var(--white);
    padding: 56px 0;
    text-align: center;
}

.page-hero h1 {
    color: var(--white);
    font-size: 2.5rem;
    margin-bottom: 12px;
}

.page-hero p {
    color: rgba(255,255,255,0.8);
    font-size: 1.05rem;
}

.breadcrumb {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-top: 16px;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.6);
}

.breadcrumb a { color: rgba(255,255,255,0.8); }
.breadcrumb a:hover { color: var(--white); }

/* Product Filter */
.product-filter {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.filter-btn {
    padding: 10px 24px;
    border: 2px solid var(--border);
    background: var(--white);
    border-radius: 30px;
    font-family: var(--font-head);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--gray-700);
    cursor: pointer;
    transition: all var(--transition);
}

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

/* Product Grid */
.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.product-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all var(--transition);
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.product-card.hidden { display: none; }

.product-img {
    height: 220px;
    background: linear-gradient(135deg, var(--primary-lighter), var(--gray-50));
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.product-img svg { width: 110px; height: 110px; transition: transform var(--transition); }
.product-img img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition); }
.product-card:hover .product-img svg { transform: scale(1.08); }
.product-card:hover .product-img img { transform: scale(1.06); }

.product-cat-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--primary);
    color: var(--white);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.product-body { padding: 24px; }

.product-body h3 { font-size: 1.1rem; margin-bottom: 6px; }

.product-code {
    font-size: 0.8rem;
    color: var(--gray-500);
    font-family: 'Courier New', monospace;
    margin-bottom: 12px;
}

.product-specs {
    margin-bottom: 16px;
}

.product-specs li {
    font-size: 0.82rem;
    color: var(--gray-700);
    padding: 3px 0;
    display: flex;
    align-items: center;
    gap: 6px;
}

.product-specs li::before {
    content: '';
    width: 4px;
    height: 4px;
    background: var(--primary);
    border-radius: 50%;
    flex-shrink: 0;
}

.product-inquiry {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.product-inquiry .price-hint {
    font-size: 0.78rem;
    color: var(--gray-500);
}

.product-inquiry .price-hint strong { color: var(--accent); font-size: 0.95rem; }

.btn-inquire {
    background: var(--primary-lighter);
    color: var(--primary);
    padding: 8px 18px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    transition: all var(--transition);
    border: none;
    cursor: pointer;
}

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

/* ---------- About Page: Factory Showcase ---------- */
.factory-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.factory-card {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    background: var(--white);
}

.factory-card-img {
    height: 260px;
    background: linear-gradient(135deg, var(--primary-lighter), var(--gray-100));
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.factory-card-body { padding: 20px; }
.factory-card-body h3 { font-size: 1rem; margin-bottom: 4px; }
.factory-card-body p { font-size: 0.85rem; color: var(--gray-500); }

/* Certifications */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.cert-card {
    background: var(--white);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 20px;
    text-align: center;
    transition: all var(--transition);
}

.cert-card:hover {
    border-color: var(--primary-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.cert-badge {
    width: 72px;
    height: 72px;
    margin: 0 auto 16px;
    background: var(--primary-lighter);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cert-badge svg { width: 36px; height: 36px; color: var(--primary); }

.cert-card h3 { font-size: 1rem; margin-bottom: 4px; }
.cert-card p { font-size: 0.82rem; color: var(--gray-500); }

/* Timeline */
.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: var(--border);
}

.timeline-item {
    display: flex;
    align-items: center;
    margin-bottom: 40px;
    position: relative;
}

.timeline-item:nth-child(even) { flex-direction: row-reverse; }

.timeline-item:nth-child(even) .timeline-content { text-align: right; }

.timeline-dot {
    width: 16px;
    height: 16px;
    background: var(--accent);
    border: 4px solid var(--white);
    box-shadow: 0 0 0 2px var(--accent);
    border-radius: 50%;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.timeline-content {
    width: 45%;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

.timeline-year {
    font-family: var(--font-head);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 4px;
}

.timeline-content h3 { font-size: 1rem; margin-bottom: 6px; }
.timeline-content p { font-size: 0.85rem; color: var(--gray-500); }

/* ---------- Contact Page ---------- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
    align-items: start;
}

.contact-info-card {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.contact-info-card h2 {
    color: var(--white);
    font-size: 1.6rem;
    margin-bottom: 8px;
}

.contact-info-card > p {
    color: rgba(255,255,255,0.75);
    font-size: 0.92rem;
    margin-bottom: 32px;
}

.contact-detail {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
    align-items: flex-start;
}

.contact-detail-icon {
    width: 44px;
    height: 44px;
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-detail-icon svg { width: 22px; height: 22px; color: #FFD15C; }

.contact-detail .label { font-size: 0.78rem; color: rgba(255,255,255,0.6); text-transform: uppercase; letter-spacing: 1px; }
.contact-detail .value { font-size: 0.95rem; color: var(--white); font-weight: 500; margin-top: 2px; }

.contact-social {
    display: flex;
    gap: 12px;
    margin-top: 32px;
    padding-top: 28px;
    border-top: 1px solid rgba(255,255,255,0.15);
}

.contact-social a {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: all var(--transition);
}

.contact-social a:hover { background: var(--accent); }
.contact-social svg { width: 20px; height: 20px; }

/* Inquiry Form */
.inquiry-form {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow);
}

.inquiry-form h2 {
    font-size: 1.6rem;
    margin-bottom: 8px;
}

.inquiry-form > p {
    color: var(--gray-500);
    font-size: 0.92rem;
    margin-bottom: 28px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group { margin-bottom: 20px; }

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 6px;
}

.form-group label .req { color: var(--accent); }

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.92rem;
    color: var(--dark);
    transition: border-color var(--transition);
    background: var(--white);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-light);
}

textarea.form-control { resize: vertical; min-height: 120px; }

select.form-control { cursor: pointer; }

.form-submit {
    width: 100%;
    justify-content: center;
    margin-top: 8px;
}

.form-success {
    display: none;
    background: #e8f8ee;
    border: 1px solid #b7e6c5;
    border-radius: var(--radius);
    padding: 16px 20px;
    margin-bottom: 20px;
    color: var(--success);
    font-size: 0.9rem;
    align-items: center;
    gap: 10px;
}

.form-success.show { display: flex; }
.form-success svg { width: 22px; height: 22px; flex-shrink: 0; }

/* ---------- Footer ---------- */
.footer {
    background: var(--dark);
    color: rgba(255,255,255,0.7);
    padding: 64px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    margin-bottom: 48px;
}

.footer-brand .logo-text { color: var(--white); }
.footer-brand .logo-text span { color: #4a9eff; }
.footer-brand .logo-sub { color: rgba(255,255,255,0.5); }

.footer-brand p {
    font-size: 0.88rem;
    color: rgba(255,255,255,0.55);
    margin: 20px 0;
    line-height: 1.8;
}

.footer-social { display: flex; gap: 10px; }

.footer-social a {
    width: 36px;
    height: 36px;
    background: rgba(255,255,255,0.08);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.7);
    transition: all var(--transition);
}

.footer-social a:hover { background: var(--primary); color: var(--white); }
.footer-social svg { width: 18px; height: 18px; }

.footer-col h4 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 20px;
}

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

.footer-links a {
    color: rgba(255,255,255,0.55);
    font-size: 0.88rem;
    transition: color var(--transition);
}

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

.footer-contact li {
    display: flex;
    gap: 10px;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.55);
    margin-bottom: 14px;
    align-items: flex-start;
}

.footer-contact svg { width: 18px; height: 18px; color: rgba(255,255,255,0.4); flex-shrink: 0; margin-top: 3px; }

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.82rem;
    color: rgba(255,255,255,0.4);
}

.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: var(--white); }

/* WhatsApp Float */
.whatsapp-float {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 56px;
    height: 56px;
    background: #25d366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 20px rgba(37,211,102,0.4);
    z-index: 999;
    transition: all var(--transition);
    animation: pulse 2s infinite;
}

.whatsapp-float:hover { transform: scale(1.1); }
.whatsapp-float svg { width: 30px; height: 30px; color: var(--white); }

@keyframes pulse {
    0% { box-shadow: 0 6px 20px rgba(37,211,102,0.4), 0 0 0 0 rgba(37,211,102,0.3); }
    70% { box-shadow: 0 6px 20px rgba(37,211,102,0.4), 0 0 0 16px rgba(37,211,102,0); }
    100% { box-shadow: 0 6px 20px rgba(37,211,102,0.4), 0 0 0 0 rgba(37,211,102,0); }
}

/* ---------- Animations ---------- */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 992px) {
    .hero .container { grid-template-columns: 1fr; text-align: center; }
    .hero-visual { display: none; }
    .hero-content .lead { margin-left: auto; margin-right: auto; }
    .hero-badges, .hero-cta, .hero-stats { justify-content: center; }
    .about-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .product-grid { grid-template-columns: repeat(2, 1fr); }
    .factory-grid { grid-template-columns: repeat(2, 1fr); }
    .cert-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .topbar { display: none; }
    .nav-menu {
        position: fixed;
        top: 76px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-lg);
        gap: 0;
        transform: translateY(-200%);
        transition: transform var(--transition);
        max-height: calc(100vh - 76px);
        overflow-y: auto;
    }
    .nav-menu.active { transform: translateY(0); }
    .nav-menu > li { width: 100%; }
    .nav-menu > li > a { padding: 14px; border-radius: 0; border-bottom: 1px solid var(--border); }
    .nav-cta { margin: 16px 0 0; width: 100%; }
    .nav-cta .btn { width: 100%; justify-content: center; }
    .nav-toggle { display: flex; }

    .hero-content h1 { font-size: 2.2rem; }
    .hero-stats { gap: 24px; }
    .hero-stat .num { font-size: 1.5rem; }

    .section { padding: 56px 0; }
    .section-header h2 { font-size: 1.7rem; }

    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .product-grid { grid-template-columns: 1fr; }
    .factory-grid { grid-template-columns: 1fr; }
    .cert-grid { grid-template-columns: 1fr 1fr; }

    .form-row { grid-template-columns: 1fr; }
    .process-step::after { display: none; }
    
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }

    .timeline::before { left: 20px; }
    .timeline-item { flex-direction: row !important; padding-left: 50px; }
    .timeline-item:nth-child(even) .timeline-content { text-align: left; }
    .timeline-dot { left: 20px; }
    .timeline-content { width: 100%; }

    .about-experience { right: 0; bottom: -16px; padding: 16px 24px; }
    .about-experience .num { font-size: 2rem; }
}

@media (max-width: 480px) {
    .hero-content h1 { font-size: 1.8rem; }
    .hero-cta { flex-direction: column; }
    .hero-cta .btn { width: 100%; justify-content: center; }
    .cert-grid { grid-template-columns: 1fr; }
    .trust-bar .container { flex-direction: column; }
    .inquiry-form, .contact-info-card { padding: 24px; }
}