/* ============================================
   CHIAN METAL PRECISION - Main Stylesheet
   Dark Premium Style | Gold Accents
   ============================================ */

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
    --bg-primary: #0d0d12;
    --bg-secondary: #16161e;
    --bg-tertiary: #1e1e2a;
    --bg-card: #1a1a24;
    --bg-hover: #252535;
    --gold: #d4af37;
    --gold-light: #f0d060;
    --gold-dark: #a8862a;
    --text-primary: #e8e8e8;
    --text-secondary: #a0a0a8;
    --text-muted: #6c6c78;
    --border: #2a2a38;
    --border-gold: rgba(212,175,55,0.3);
    --shadow: 0 4px 20px rgba(0,0,0,0.4);
    --shadow-gold: 0 0 20px rgba(212,175,55,0.15);
    --radius: 8px;
    --transition: all 0.3s ease;
    --max-width: 1280px;
}
html { scroll-behavior: smooth; }
body {
    font-family: 'Segoe UI', 'Helvetica Neue', Arial, 'Microsoft YaHei', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    font-size: 15px;
    overflow-x: hidden;
}
a { color: var(--gold); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--gold-light); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
h1,h2,h3,h4,h5,h6 { font-weight: 700; line-height: 1.3; color: var(--text-primary); }
h1 { font-size: 2.2rem; }
h2 { font-size: 1.8rem; }
h3 { font-size: 1.4rem; }
h4 { font-size: 1.15rem; }
p { margin-bottom: 1rem; color: var(--text-secondary); }

/* ===== Container ===== */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }
.section { padding: 70px 0; }
.section-title {
    text-align: center;
    margin-bottom: 50px;
    position: relative;
}
.section-title h2 {
    display: inline-block;
    position: relative;
    padding-bottom: 15px;
}
.section-title h2::after {
    content: '';
    position: absolute;
    bottom: 0; left: 50%;
    transform: translateX(-50%);
    width: 60px; height: 3px;
    background: linear-gradient(90deg, var(--gold-dark), var(--gold), var(--gold-dark));
}
.section-title p { color: var(--text-muted); margin-top: 10px; }

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 12px 32px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    text-align: center;
}
.btn-gold {
    background: linear-gradient(135deg, var(--gold-dark), var(--gold));
    color: #1a1a1a;
    border-color: var(--gold);
}
.btn-gold:hover {
    background: linear-gradient(135deg, var(--gold), var(--gold-light));
    color: #1a1a1a;
    box-shadow: var(--shadow-gold);
    transform: translateY(-2px);
}
.btn-outline {
    background: transparent;
    color: var(--gold);
    border-color: var(--gold);
}
.btn-outline:hover {
    background: var(--gold);
    color: #1a1a1a;
}
.btn-sm { padding: 8px 20px; font-size: 12px; }
.btn-block { display: block; width: 100%; }

/* ===== Header / Navigation ===== */
.header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(13,13,18,0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}
.header.scrolled { box-shadow: var(--shadow); }
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}
.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--gold);
    letter-spacing: 2px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.logo span { color: var(--text-primary); }
.logo-sub { font-size: 0.6rem; color: var(--text-muted); letter-spacing: 3px; display: block; }

.nav { display: flex; align-items: center; gap: 5px; }
.nav a {
    color: var(--text-secondary);
    padding: 8px 14px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 4px;
    position: relative;
}
.nav a:hover, .nav a.active {
    color: var(--gold);
    background: rgba(212,175,55,0.08);
}
.nav-right { display: flex; align-items: center; gap: 15px; }
.lang-switcher {
    position: relative;
}
.lang-switcher select {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    padding: 6px 10px;
    border-radius: 4px;
    font-size: 13px;
    cursor: pointer;
}
.search-box {
    display: flex;
    align-items: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 20px;
    overflow: hidden;
}
.search-box input {
    background: transparent;
    border: none;
    color: var(--text-primary);
    padding: 7px 14px;
    font-size: 13px;
    width: 160px;
    outline: none;
}
.search-box button {
    background: transparent;
    border: none;
    color: var(--gold);
    padding: 7px 12px;
    cursor: pointer;
}

/* Mobile menu toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}
.menu-toggle span {
    width: 25px; height: 2px;
    background: var(--gold);
    transition: var(--transition);
}

/* ===== Hero / Banner Slider ===== */
.hero {
    margin-top: 70px;
    position: relative;
    height: 520px;
    overflow: hidden;
}
.hero-slide {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    opacity: 0;
    transition: opacity 1s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.hero-slide.active { opacity: 1; }
.hero-slide::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(13,13,18,0.85), rgba(22,22,30,0.7));
    z-index: 1;
}
.hero-slide img {
    position: absolute;
    inset: 0;
    width: 100%; height: 100%;
    object-fit: cover;
}
.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 0 20px;
}
.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 15px;
    background: linear-gradient(135deg, var(--gold-light), var(--gold), var(--gold-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-content p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
}
.hero-dots {
    position: absolute;
    bottom: 25px; left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 3;
}
.hero-dots span {
    width: 12px; height: 12px;
    border-radius: 50%;
    background: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
}
.hero-dots span.active {
    background: var(--gold);
    width: 30px;
    border-radius: 6px;
}

/* ===== Breadcrumb ===== */
.breadcrumb {
    margin-top: 70px;
    padding: 18px 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}
.breadcrumb-inner {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
}
.breadcrumb-inner a { color: var(--text-secondary); }
.breadcrumb-inner a:hover { color: var(--gold); }
.breadcrumb-inner .sep { color: var(--text-muted); }
.breadcrumb-inner .current { color: var(--gold); }

/* ===== Page Header ===== */
.page-header {
    padding: 60px 0 40px;
    text-align: center;
    background: linear-gradient(180deg, var(--bg-secondary), var(--bg-primary));
}
.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}
.page-header h1::after {
    content: '';
    display: block;
    width: 60px; height: 3px;
    background: var(--gold);
    margin: 15px auto 0;
}
.page-header p { color: var(--text-muted); }

/* ===== Product Grid ===== */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 25px;
}
.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}
.product-card:hover {
    transform: translateY(-5px);
    border-color: var(--border-gold);
    box-shadow: var(--shadow-gold);
}
.product-card-img {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    background: var(--bg-tertiary);
}
.product-card-img img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.product-card:hover .product-card-img img { transform: scale(1.08); }
.product-card-badge {
    position: absolute;
    top: 10px; left: 10px;
    background: var(--gold);
    color: #1a1a1a;
    padding: 3px 10px;
    font-size: 11px;
    font-weight: 700;
    border-radius: 3px;
    text-transform: uppercase;
}
.product-card-body { padding: 18px; }
.product-card-body h3 {
    font-size: 1rem;
    margin-bottom: 8px;
    line-height: 1.4;
}
.product-card-body h3 a { color: var(--text-primary); }
.product-card-body h3 a:hover { color: var(--gold); }
.product-card-category {
    font-size: 12px;
    color: var(--gold);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}
.product-card-price {
    color: var(--gold);
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 12px;
}
.product-card-actions { display: flex; gap: 8px; }

/* ===== Product Detail ===== */
.product-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; padding: 40px 0; }
.product-gallery-main {
    aspect-ratio: 1;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 15px;
}
.product-gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.product-gallery-thumbs { display: flex; gap: 10px; }
.product-gallery-thumbs img {
    width: 70px; height: 70px;
    object-fit: cover;
    border: 2px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
}
.product-gallery-thumbs img:hover, .product-gallery-thumbs img.active {
    border-color: var(--gold);
}
.product-info h1 { font-size: 1.8rem; margin-bottom: 10px; }
.product-info .product-category { color: var(--gold); font-size: 13px; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 15px; }
.product-info .product-price { font-size: 1.5rem; color: var(--gold); font-weight: 700; margin-bottom: 20px; }
.product-specs-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}
.product-specs-table th, .product-specs-table td {
    padding: 10px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}
.product-specs-table th {
    color: var(--gold);
    font-weight: 600;
    width: 40%;
    background: var(--bg-secondary);
}
.product-specs-table td { color: var(--text-secondary); }
.product-share { display: flex; align-items: center; gap: 10px; margin-top: 20px; }
.product-share a {
    width: 36px; height: 36px;
    display: flex; align-items: center; justify-content: center;
    background: var(--bg-tertiary);
    border-radius: 50%;
    color: var(--text-secondary);
    font-size: 14px;
}
.product-share a:hover { background: var(--gold); color: #1a1a1a; }

/* ===== Filters / Sidebar ===== */
.product-layout { display: grid; grid-template-columns: 260px 1fr; gap: 30px; }
.sidebar { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; height: fit-content; }
.sidebar h4 { color: var(--gold); margin-bottom: 15px; font-size: 15px; text-transform: uppercase; letter-spacing: 1px; }
.sidebar ul li { margin-bottom: 8px; }
.sidebar ul li a {
    display: block;
    padding: 8px 12px;
    color: var(--text-secondary);
    border-radius: 4px;
    font-size: 14px;
    transition: var(--transition);
}
.sidebar ul li a:hover, .sidebar ul li a.active {
    background: rgba(212,175,55,0.1);
    color: var(--gold);
}
.filter-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    flex-wrap: wrap;
    gap: 15px;
}
.filter-bar select {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    padding: 8px 14px;
    border-radius: 4px;
    font-size: 13px;
}

/* ===== Pagination ===== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 40px;
}
.pagination a, .pagination span {
    padding: 8px 14px;
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-secondary);
    font-size: 14px;
    transition: var(--transition);
}
.pagination a:hover { border-color: var(--gold); color: var(--gold); }
.pagination .current { background: var(--gold); color: #1a1a1a; border-color: var(--gold); font-weight: 600; }

/* ===== Why Choose Us ===== */
.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}
.why-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 30px;
    text-align: center;
    transition: var(--transition);
}
.why-card:hover {
    border-color: var(--border-gold);
    transform: translateY(-3px);
}
.why-icon {
    width: 60px; height: 60px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--gold-dark), var(--gold));
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 24px;
    color: #1a1a1a;
}
.why-card h3 { margin-bottom: 10px; font-size: 1.1rem; }
.why-card p { font-size: 14px; color: var(--text-muted); margin: 0; }

/* ===== Testimonials ===== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 25px;
}
.testimonial-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 30px;
    position: relative;
}
.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 10px; left: 20px;
    font-size: 4rem;
    color: var(--gold);
    opacity: 0.2;
    font-family: Georgia, serif;
    line-height: 1;
}
.testimonial-text {
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: 20px;
    padding-top: 20px;
    font-size: 14px;
}
.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}
.testimonial-avatar {
    width: 45px; height: 45px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gold-dark), var(--gold));
    display: flex; align-items: center; justify-content: center;
    color: #1a1a1a;
    font-weight: 700;
    font-size: 16px;
}
.testimonial-author-info h4 { font-size: 14px; margin-bottom: 2px; }
.testimonial-author-info p { font-size: 12px; color: var(--text-muted); margin: 0; }
.testimonial-stars { color: var(--gold); margin-bottom: 10px; font-size: 14px; }

/* ===== Forms ===== */
.form-group { margin-bottom: 18px; }
.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
}
.form-group label .required { color: var(--gold); }
.form-control {
    width: 100%;
    padding: 11px 15px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 14px;
    transition: var(--transition);
    outline: none;
}
.form-control:focus {
    border-color: var(--gold);
    box-shadow: 0 0 0 3px rgba(212,175,55,0.1);
}
.form-control::placeholder { color: var(--text-muted); }
textarea.form-control { resize: vertical; min-height: 120px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.form-captcha { display: flex; gap: 10px; align-items: center; }
.form-captcha img { height: 42px; border-radius: 4px; cursor: pointer; }
.form-captcha input { flex: 1; }

/* ===== Modal ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(5px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.modal-overlay.active { display: flex; }
.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-gold);
    border-radius: var(--radius);
    width: 100%;
    max-width: 550px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.modal-header {
    padding: 20px 25px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.modal-header h3 { color: var(--gold); font-size: 1.2rem; }
.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 24px;
    cursor: pointer;
    transition: var(--transition);
}
.modal-close:hover { color: var(--gold); }
.modal-body { padding: 25px; }
.modal-product-info {
    background: var(--bg-tertiary);
    padding: 12px 15px;
    border-radius: 4px;
    margin-bottom: 20px;
    font-size: 14px;
    color: var(--gold);
    font-weight: 600;
}

/* ===== Floating Buttons ===== */
.floating-buttons {
    position: fixed;
    right: 20px;
    bottom: 80px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.float-btn {
    width: 76px;
    min-height: 60px;
    padding: 8px 6px;
    border-radius: 30px;
    display: flex; align-items: center; justify-content: center;
    flex-direction: column;
    gap: 3px;
    color: #fff;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow);
    text-decoration: none;
    line-height: 1.2;
    text-align: center;
    box-sizing: border-box;
}
.float-btn .float-icon { font-size: 20px; line-height: 1; }
.float-btn .float-text { font-size: 11px; white-space: nowrap; display: block; }
.float-btn:hover { transform: scale(1.06); color: #fff; }
.float-whatsapp { background: #25D366; }
.float-inquiry { background: linear-gradient(135deg, var(--gold-dark), var(--gold)); color: #1a1a1a; }
.back-to-top {
    position: fixed;
    right: 20px;
    bottom: 20px;
    width: 45px; height: 45px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-gold);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: var(--gold);
    cursor: pointer;
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    font-size: 18px;
}
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--gold); color: #1a1a1a; }

/* ===== Cookie Banner ===== */
.cookie-banner {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-gold);
    padding: 15px 20px;
    z-index: 1500;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    transform: translateY(100%);
    transition: transform 0.4s ease;
}
.cookie-banner.visible { transform: translateY(0); }
.cookie-banner p { margin: 0; font-size: 13px; color: var(--text-secondary); flex: 1; min-width: 250px; }
.cookie-buttons { display: flex; gap: 10px; }

/* ===== Footer ===== */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 60px 0 0;
    margin-top: 60px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer-col h4 {
    color: var(--gold);
    margin-bottom: 20px;
    font-size: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.footer-col p { font-size: 13px; color: var(--text-muted); }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
    color: var(--text-secondary);
    font-size: 13px;
    transition: var(--transition);
}
.footer-col ul li a:hover { color: var(--gold); padding-left: 5px; }
.footer-contact-item {
    display: flex;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 13px;
    color: var(--text-secondary);
}
.footer-contact-item .icon { color: var(--gold); min-width: 18px; }
.footer-social { display: flex; gap: 10px; margin-top: 15px; }
.footer-social a {
    width: 36px; height: 36px;
    background: var(--bg-tertiary);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: var(--text-secondary);
    font-size: 14px;
}
.footer-social a:hover { background: var(--gold); color: #1a1a1a; }
.footer-newsletter { margin-top: 15px; }
.footer-newsletter form { display: flex; gap: 8px; }
.footer-newsletter input {
    flex: 1;
    padding: 9px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 13px;
    outline: none;
}
.footer-newsletter button {
    padding: 9px 16px;
    background: var(--gold);
    border: none;
    border-radius: 4px;
    color: #1a1a1a;
    font-weight: 600;
    font-size: 12px;
    cursor: pointer;
}
.footer-bottom {
    border-top: 1px solid var(--border);
    padding: 20px 0;
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
}

/* ===== News ===== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 30px;
}
.news-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}
.news-card:hover { border-color: var(--border-gold); transform: translateY(-3px); }
.news-card-img { height: 200px; overflow: hidden; background: var(--bg-tertiary); }
.news-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.news-card:hover .news-card-img img { transform: scale(1.05); }
.news-card-body { padding: 22px; }
.news-card-meta {
    display: flex;
    gap: 15px;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 10px;
}
.news-card-meta .cat { color: var(--gold); text-transform: uppercase; letter-spacing: 1px; }
.news-card-body h3 { font-size: 1.1rem; margin-bottom: 10px; line-height: 1.4; }
.news-card-body h3 a { color: var(--text-primary); }
.news-card-body h3 a:hover { color: var(--gold); }
.news-card-body p { font-size: 14px; color: var(--text-muted); margin-bottom: 15px; }
.news-detail { max-width: 800px; margin: 0 auto; }
.news-detail-header { text-align: center; margin-bottom: 30px; }
.news-detail-meta { display: flex; justify-content: center; gap: 20px; font-size: 13px; color: var(--text-muted); margin-top: 15px; }
.news-detail-content { font-size: 15px; line-height: 1.8; }
.news-detail-content p { margin-bottom: 1.2rem; color: var(--text-secondary); }
.news-detail-content h2, .news-detail-content h3 { margin: 25px 0 15px; color: var(--gold); }

/* ===== Solutions / Custom / Quality / Howto ===== */
.content-page { max-width: 900px; margin: 0 auto; }
.content-page h2 { color: var(--gold); margin: 30px 0 15px; }
.content-page h3 { margin: 25px 0 12px; }
.content-page ul, .content-page ol { margin: 15px 0; padding-left: 25px; }
.content-page ul li, .content-page ol li {
    color: var(--text-secondary);
    margin-bottom: 8px;
    list-style: disc;
}
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin: 30px 0;
}
.step-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 25px;
    position: relative;
    transition: var(--transition);
}
.step-card:hover { border-color: var(--border-gold); }
.step-number {
    width: 40px; height: 40px;
    background: linear-gradient(135deg, var(--gold-dark), var(--gold));
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: #1a1a1a;
    font-weight: 700;
    font-size: 16px;
    margin-bottom: 15px;
}
.step-card h3 { font-size: 1.05rem; margin-bottom: 8px; }
.step-card p { font-size: 14px; color: var(--text-muted); margin: 0; }

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
}
.faq-question {
    padding: 18px 22px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--text-primary);
    transition: var(--transition);
}
.faq-question:hover { color: var(--gold); background: var(--bg-hover); }
.faq-question .toggle { color: var(--gold); font-size: 20px; transition: transform 0.3s; }
.faq-item.active .faq-question .toggle { transform: rotate(45deg); }
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}
.faq-item.active .faq-answer { max-height: 500px; }
.faq-answer-inner { padding: 0 22px 20px; color: var(--text-secondary); font-size: 14px; }

/* ===== Contact ===== */
.contact-layout { display: grid; grid-template-columns: 1fr 1.2fr; gap: 40px; }
.contact-info-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 30px;
}
.contact-info-item {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
    align-items: flex-start;
}
.contact-info-icon {
    width: 45px; height: 45px;
    background: rgba(212,175,55,0.1);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: var(--gold);
    font-size: 18px;
    flex-shrink: 0;
}
.contact-info-item h4 { font-size: 14px; margin-bottom: 4px; color: var(--text-primary); }
.contact-info-item p { font-size: 13px; color: var(--text-muted); margin: 0; }
.contact-map { margin-top: 30px; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); }

/* ===== About ===== */
.about-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
    margin-bottom: 50px;
}
.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin: 40px 0;
}
.stat-card {
    text-align: center;
    padding: 25px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.stat-number {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--gold);
    margin-bottom: 5px;
}
.stat-label { font-size: 13px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }
.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
}
.cert-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 25px;
    text-align: center;
    transition: var(--transition);
}
.cert-card:hover { border-color: var(--border-gold); }
.cert-icon { font-size: 36px; color: var(--gold); margin-bottom: 12px; }
.cert-card h4 { font-size: 14px; margin-bottom: 5px; }
.cert-card p { font-size: 12px; color: var(--text-muted); margin: 0; }

/* ===== 404 ===== */
.error-page {
    text-align: center;
    padding: 100px 20px;
    min-height: 60vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.error-code {
    font-size: 8rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--gold-light), var(--gold-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
    margin-bottom: 20px;
}
.error-page h1 { margin-bottom: 15px; }
.error-page p { color: var(--text-muted); margin-bottom: 30px; }

/* ===== Alert Messages ===== */
.alert {
    padding: 12px 18px;
    border-radius: var(--radius);
    margin-bottom: 15px;
    font-size: 14px;
}
.alert-success { background: rgba(40,167,69,0.15); border: 1px solid rgba(40,167,69,0.3); color: #4caf50; }
.alert-error { background: rgba(220,53,69,0.15); border: 1px solid rgba(220,53,69,0.3); color: #f44336; }
.alert-info { background: rgba(33,150,243,0.15); border: 1px solid rgba(33,150,243,0.3); color: #2196f3; }

/* ===== Lazy Load ===== */
img.lazy { opacity: 0; transition: opacity 0.4s; }
img.lazy.loaded { opacity: 1; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .product-detail, .about-hero, .contact-layout { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .about-stats { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .menu-toggle { display: flex; }
    .nav {
        position: fixed;
        top: 70px; left: -100%;
        width: 280px;
        height: calc(100vh - 70px);
        background: var(--bg-secondary);
        flex-direction: column;
        padding: 20px;
        gap: 5px;
        transition: left 0.3s ease;
        overflow-y: auto;
        border-right: 1px solid var(--border);
    }
    .nav.open { left: 0; }
    .nav a { width: 100%; padding: 12px 15px; }
    .search-box { display: none; }
    .hero { height: 400px; }
    .hero-content h1 { font-size: 2rem; }
    .hero-content p { font-size: 1rem; }
    .section { padding: 45px 0; }
    h1 { font-size: 1.8rem; }
    h2 { font-size: 1.5rem; }
    .product-layout { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
    .about-stats { grid-template-columns: repeat(2, 1fr); }
    .page-header h1 { font-size: 1.8rem; }
    .floating-buttons { right: 12px; bottom: 70px; }
    .float-btn { padding: 6px 4px; width: 66px; min-height: 52px; border-radius: 26px; }
    .float-btn .float-icon { font-size: 18px; }
    .float-btn .float-text { font-size: 10px; }
}
@media (max-width: 480px) {
    .hero { height: 320px; }
    .hero-content h1 { font-size: 1.5rem; }
    .product-grid { grid-template-columns: 1fr; }
    .about-stats { grid-template-columns: 1fr 1fr; }
    .btn { padding: 10px 24px; font-size: 13px; }
}