/* ===== Reset & Base ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
:root {
    --dark: #0a0e1a;
    --dark-2: #111827;
    --navy: #0f1b2d;
    --gold: #c9a961;
    --gold-light: #e0c98f;
    --gold-dark: #a8893f;
    --white: #ffffff;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-400: #adb5bd;
    --gray-600: #6c757d;
    --gray-800: #343a40;
    --font-serif: 'Playfair Display', 'Noto Serif SC', serif;
    --font-sans: 'Inter', 'Noto Serif SC', -apple-system, sans-serif;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-sans);
    color: var(--gray-800);
    line-height: 1.7;
    overflow-x: hidden;
    background: var(--white);
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== Typography ===== */
.section-label {
    font-family: var(--font-sans);
    font-size: 13px;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--gold);
    font-weight: 600;
    margin-bottom: 12px;
}
.section-label.light { color: var(--gold-light); }
.section-title {
    font-family: var(--font-serif);
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 600;
    color: var(--dark);
    line-height: 1.3;
    margin-bottom: 16px;
}
.section-title.light { color: var(--white); }
.title-divider {
    width: 50px;
    height: 3px;
    background: var(--gold);
    margin-bottom: 24px;
}
.title-divider.center { margin: 0 auto 24px; }
.title-divider.gold { background: var(--gold); }
.section-desc {
    font-size: 16px;
    color: var(--gray-600);
    max-width: 600px;
}
.section-desc.light { color: var(--gray-400); }
.section-header { text-align: center; margin-bottom: 60px; }
.section-header .section-desc { margin: 0 auto; }
.gold-text { color: var(--gold); }

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 14px 36px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1px;
    border-radius: 2px;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    text-align: center;
}
.btn-primary {
    background: var(--gold);
    color: var(--dark);
    border-color: var(--gold);
}
.btn-primary:hover {
    background: var(--gold-dark);
    border-color: var(--gold-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(201, 169, 97, 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(--dark);
    border-color: var(--white);
}
.btn-full { width: 100%; }

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
}
.navbar.scrolled {
    background: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(10px);
    padding: 14px 0;
    box-shadow: 0 4px 30px rgba(0,0,0,0.3);
}
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}
.logo-icon {
    width: 40px; height: 40px;
    background: var(--gold);
    color: var(--dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: 16px;
    border-radius: 2px;
}
.logo-text {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 600;
    color: var(--white);
    letter-spacing: 2px;
}
.navbar.scrolled .logo-text { color: var(--white); }
.nav-menu {
    display: flex;
    gap: 36px;
}
.nav-link {
    color: rgba(255,255,255,0.85);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 1px;
    position: relative;
    transition: var(--transition);
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -6px; left: 0;
    width: 0; height: 2px;
    background: var(--gold);
    transition: var(--transition);
}
.nav-link:hover { color: var(--gold); }
.nav-link:hover::after { width: 100%; }
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}
.nav-toggle span {
    width: 24px; height: 2px;
    background: var(--white);
    transition: var(--transition);
}

/* ===== Hero ===== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.hero-bg {
    position: absolute;
    inset: 0;
    background: url('https://images.unsplash.com/photo-1577803645773-f96470509666?w=1920&q=80') center/cover no-repeat;
    transform: scale(1.05);
    animation: heroZoom 20s ease-in-out infinite alternate;
}
@keyframes heroZoom {
    from { transform: scale(1.05); }
    to { transform: scale(1.15); }
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10,14,26,0.85) 0%, rgba(15,27,45,0.7) 50%, rgba(10,14,26,0.9) 100%);
}
.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    padding: 0 24px;
}
.hero-subtitle {
    font-size: 12px;
    letter-spacing: 6px;
    color: var(--gold);
    text-transform: uppercase;
    margin-bottom: 24px;
    font-weight: 600;
}
.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(36px, 6vw, 64px);
    font-weight: 600;
    color: var(--white);
    line-height: 1.2;
    margin-bottom: 24px;
}
.hero-desc {
    font-size: 17px;
    color: rgba(255,255,255,0.75);
    margin-bottom: 40px;
    line-height: 1.8;
}
.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}
.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: rgba(255,255,255,0.5);
    font-size: 11px;
    letter-spacing: 3px;
    z-index: 2;
}
.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--gold), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.5); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* ===== Fade In Animations ===== */
.fade-in { opacity: 0; transform: translateY(30px); animation: fadeInUp 1s ease forwards; }
.fade-in.delay-1 { animation-delay: 0.2s; }
.fade-in.delay-2 { animation-delay: 0.4s; }
.fade-in.delay-3 { animation-delay: 0.6s; }
@keyframes fadeInUp {
    to { opacity: 1; transform: translateY(0); }
}
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== About ===== */
.about { padding: 120px 0; background: var(--white); }
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.about-image {
    position: relative;
    border-radius: 4px;
    overflow: hidden;
}
.about-image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: 4px;
}
.about-image-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--dark);
    color: var(--white);
    padding: 24px 32px;
    border-radius: 4px;
    text-align: center;
    box-shadow: 0 20px 50px rgba(0,0,0,0.2);
}
.badge-number {
    display: block;
    font-family: var(--font-serif);
    font-size: 36px;
    font-weight: 700;
    color: var(--gold);
    line-height: 1;
}
.badge-text {
    font-size: 12px;
    letter-spacing: 2px;
    color: var(--gray-400);
    margin-top: 6px;
    display: block;
}
.about-text {
    font-size: 15px;
    color: var(--gray-600);
    margin-bottom: 16px;
    line-height: 1.9;
}
.about-features {
    margin-top: 32px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}
.feature-icon {
    color: var(--gold);
    font-size: 14px;
    margin-top: 4px;
    flex-shrink: 0;
}
.feature-item h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 2px;
}
.feature-item p {
    font-size: 13px;
    color: var(--gray-600);
}

/* ===== Products ===== */
.products { padding: 120px 0; background: var(--gray-100); }
.product-categories {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.category-card {
    background: var(--white);
    border-radius: 4px;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}
.category-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.12);
}
.category-image {
    position: relative;
    height: 240px;
    overflow: hidden;
}
.category-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.category-card:hover .category-image img {
    transform: scale(1.1);
}
.category-overlay {
    position: absolute;
    inset: 0;
    background: rgba(10,14,26,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}
.category-card:hover .category-overlay { opacity: 1; }
.category-link {
    color: var(--gold);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1px;
    border-bottom: 1px solid var(--gold);
    padding-bottom: 4px;
}
.category-info { padding: 24px; }
.category-info h3 {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 8px;
}
.category-info p {
    font-size: 13px;
    color: var(--gray-600);
}

/* ===== Advantages ===== */
.advantages {
    padding: 120px 0;
    background: var(--dark);
    position: relative;
}
.advantages::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: url('https://images.unsplash.com/photo-1511499767150-a48a237f0083?w=1920&q=80') center/cover fixed;
    opacity: 0.05;
}
.advantages .container { position: relative; z-index: 1; }
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.advantage-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(201,169,97,0.15);
    border-radius: 4px;
    padding: 40px 32px;
    transition: var(--transition);
}
.advantage-card:hover {
    background: rgba(201,169,97,0.08);
    border-color: rgba(201,169,97,0.4);
    transform: translateY(-5px);
}
.advantage-number {
    font-family: var(--font-serif);
    font-size: 42px;
    font-weight: 700;
    color: var(--gold);
    opacity: 0.6;
    margin-bottom: 16px;
    line-height: 1;
}
.advantage-card h3 {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 12px;
}
.advantage-card p {
    font-size: 14px;
    color: var(--gray-400);
    line-height: 1.8;
}

/* ===== Stats ===== */
.stats {
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}
.stats-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--navy) 0%, var(--dark) 100%);
}
.stats .container { position: relative; z-index: 1; }
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}
.stat-number {
    font-family: var(--font-serif);
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 700;
    color: var(--gold);
    line-height: 1;
    margin-bottom: 10px;
}
.stat-label {
    font-size: 14px;
    color: var(--gray-400);
    letter-spacing: 1px;
}

/* ===== Testimonials ===== */
.testimonials { padding: 120px 0; background: var(--white); }
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.testimonial-card {
    background: var(--gray-100);
    border-radius: 4px;
    padding: 36px 32px;
    transition: var(--transition);
    border-left: 3px solid var(--gold);
}
.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.1);
}
.testimonial-stars {
    color: var(--gold);
    font-size: 16px;
    margin-bottom: 16px;
    letter-spacing: 2px;
}
.testimonial-text {
    font-size: 14px;
    color: var(--gray-600);
    line-height: 1.9;
    margin-bottom: 24px;
    font-style: italic;
}
.testimonial-author {
    display: flex;
    align-items: center;
    gap: 14px;
}
.author-avatar {
    width: 48px; height: 48px;
    border-radius: 50%;
    background: var(--gold);
    color: var(--dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    flex-shrink: 0;
}
.testimonial-author h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--dark);
}
.testimonial-author p {
    font-size: 12px;
    color: var(--gray-600);
}

/* ===== Contact ===== */
.contact { padding: 120px 0; background: var(--gray-100); }
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}
.contact-desc {
    font-size: 15px;
    color: var(--gray-600);
    margin-bottom: 32px;
    line-height: 1.9;
}
.contact-items {
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.contact-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}
.contact-icon {
    width: 44px; height: 44px;
    background: var(--gold);
    color: var(--dark);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    font-size: 18px;
    flex-shrink: 0;
}
.contact-item h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 4px;
}
.contact-item p {
    font-size: 14px;
    color: var(--gray-600);
}
.contact-form-wrap {
    background: var(--white);
    padding: 48px 40px;
    border-radius: 4px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
}
.contact-form h3 {
    font-family: var(--font-serif);
    font-size: 24px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 8px;
}
.contact-form > p {
    font-size: 13px;
    color: var(--gray-600);
    margin-bottom: 28px;
}
.form-group { margin-bottom: 18px; }
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid var(--gray-200);
    border-radius: 2px;
    font-size: 14px;
    font-family: var(--font-sans);
    color: var(--dark);
    transition: var(--transition);
    background: var(--white);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--gold);
    box-shadow: 0 0 0 3px rgba(201,169,97,0.1);
}
.form-group textarea { resize: vertical; }

/* ===== Footer ===== */
.footer {
    background: var(--dark);
    padding: 70px 0 0;
    color: var(--gray-400);
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 50px;
}
.footer-brand p {
    font-size: 13px;
    line-height: 1.9;
    margin-top: 16px;
}
.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}
.footer-logo .logo-text { color: var(--white); }
.footer-links h4,
.footer-contact h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 20px;
}
.footer-links ul li { margin-bottom: 10px; }
.footer-links a {
    font-size: 13px;
    color: var(--gray-400);
    transition: var(--transition);
}
.footer-links a:hover { color: var(--gold); padding-left: 4px; }
.footer-contact p {
    font-size: 13px;
    margin-bottom: 12px;
    line-height: 1.6;
}
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}
.footer-bottom p {
    font-size: 12px;
    color: var(--gray-600);
}
#icpNumber a { color: var(--gray-600); transition: var(--transition); }
#icpNumber a:hover { color: var(--gold); }

/* ===== Back to Top ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px; height: 48px;
    background: var(--gold);
    color: var(--dark);
    border: none;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: 0 4px 20px rgba(201,169,97,0.4);
}
.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}
.back-to-top:hover {
    background: var(--gold-dark);
    transform: translateY(-3px);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .product-categories { grid-template-columns: repeat(2, 1fr); }
    .advantages-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0; right: -100%;
        width: 70%;
        height: 100vh;
        background: var(--dark);
        flex-direction: column;
        padding: 80px 30px 30px;
        gap: 24px;
        transition: right 0.4s ease;
    }
    .nav-menu.active { right: 0; }
    .nav-toggle { display: flex; }
    .nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .nav-toggle.active span:nth-child(2) { opacity: 0; }
    .nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
    .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
    .about-image img { height: 350px; }
    .about-image-badge { bottom: -10px; right: 10px; padding: 16px 24px; }
    .product-categories { grid-template-columns: 1fr; }
    .advantages-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 30px 20px; }
    .testimonials-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .hide-mobile { display: none; }
    .hero-desc { font-size: 15px; }
    .section-header { margin-bottom: 40px; }
    .about, .products, .advantages, .testimonials, .contact { padding: 80px 0; }
    .contact-form-wrap { padding: 32px 24px; }
}