/* ===== CSS CUSTOM PROPERTIES ===== */
:root {
    --color-bg-primary: #0a0e1a;
    --color-bg-secondary: #111827;
    --color-bg-tertiary: #1a2235;
    --color-bg-card: #151d2e;
    --color-bg-card-hover: #1c2541;
    --color-bg-elevated: #1e2a40;
    
    --color-gold: #C9A84C;
    --color-gold-light: #F0D078;
    --color-gold-dark: #A07830;
    --color-gold-muted: rgba(201, 168, 76, 0.15);
    --color-gold-glow: rgba(201, 168, 76, 0.3);
    
    --color-text-primary: #F8F6F0;
    --color-text-secondary: #B8BCC8;
    --color-text-muted: #7A8199;
    --color-text-dark: #0a0e1a;
    
    --color-border: rgba(201, 168, 76, 0.12);
    --color-border-hover: rgba(201, 168, 76, 0.3);
    
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-gold: 0 4px 30px rgba(201, 168, 76, 0.2);
    
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== RESET & BASE ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.7;
    overflow-x: hidden;
}

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

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

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

.text-gold {
    color: var(--color-gold);
}

/* ===== PRELOADER ===== */
#preloader {
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: var(--color-bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

#preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader {
    text-align: center;
}

.loader-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    position: relative;
}

.loader-icon::before {
    content: '';
    position: absolute;
    inset: 0;
    border: 3px solid var(--color-bg-tertiary);
    border-top-color: var(--color-gold);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.loader-text {
    font-family: var(--font-heading);
    color: var(--color-gold);
    font-size: 1.1rem;
    letter-spacing: 0.05em;
}

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

/* ===== NAVBAR ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all var(--transition-base);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(10, 14, 26, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
    z-index: 1001;
}

.nav-logo-text {
    letter-spacing: 0.02em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--color-text-secondary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-gold);
}

.nav-cta {
    margin-left: 8px;
    padding: 10px 22px;
    background: var(--color-gold);
    color: var(--color-text-dark);
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav-cta:hover {
    background: var(--color-gold-light);
    color: var(--color-text-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-gold);
}

/* Mobile nav toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    z-index: 1001;
}

.nav-toggle-line {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    border-radius: 2px;
    transition: all var(--transition-base);
    transform-origin: center;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(2) {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== HERO ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--color-bg-primary);
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.35;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(10, 14, 26, 0.95) 0%,
        rgba(10, 14, 26, 0.80) 40%,
        rgba(10, 14, 26, 0.60) 70%,
        rgba(10, 14, 26, 0.75) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    padding: 140px 24px 100px;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: var(--color-gold-muted);
    border: 1px solid var(--color-border);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-gold);
    margin-bottom: 28px;
    letter-spacing: 0.03em;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    color: var(--color-text-primary);
    margin-bottom: 24px;
    max-width: 800px;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--color-text-secondary);
    max-width: 620px;
    line-height: 1.8;
    margin-bottom: 40px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 64px;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 30px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    letter-spacing: 0.02em;
}

.btn-primary {
    background: var(--color-gold);
    color: var(--color-text-dark);
    border: 2px solid var(--color-gold);
}

.btn-primary:hover {
    background: var(--color-gold-light);
    border-color: var(--color-gold-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-gold);
}

.btn-outline {
    background: transparent;
    color: var(--color-text-primary);
    border: 2px solid rgba(248, 246, 240, 0.3);
}

.btn-outline:hover {
    border-color: var(--color-gold);
    color: var(--color-gold);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 10px 22px;
    font-size: 0.85rem;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 40px;
}

.hero-stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.hero-stat-number {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-gold);
    line-height: 1;
}

.hero-stat-label {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.hero-stat-divider {
    width: 1px;
    height: 40px;
    background: var(--color-border);
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--color-text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    animation: float 2s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(6px); }
}

/* ===== SECTION COMMON ===== */
section {
    padding: 100px 0;
}

.section-header {
    margin-bottom: 64px;
}

.section-label {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-gold);
    margin-bottom: 20px;
}

.section-label.justify-center {
    justify-content: center;
}

.label-line {
    flex: 0 0 40px;
    height: 1px;
    background: var(--color-gold);
    opacity: 0.5;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--color-text-primary);
    line-height: 1.2;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--color-text-secondary);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ===== ABOUT ===== */
.about {
    background: var(--color-bg-secondary);
    position: relative;
}

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

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

.about-image-wrapper {
    position: relative;
}

.about-image-main {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-image-main img {
    width: 100%;
    height: 450px;
    object-fit: cover;
}

.about-image-accent {
    position: absolute;
    bottom: -40px;
    right: -40px;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 4px solid var(--color-bg-secondary);
    box-shadow: var(--shadow-md);
}

.about-image-accent img {
    width: 250px;
    height: 200px;
    object-fit: cover;
}

.about-experience-badge {
    position: absolute;
    top: -20px;
    left: -20px;
    background: var(--color-gold);
    color: var(--color-text-dark);
    padding: 20px;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-gold);
    z-index: 2;
}

.about-exp-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 700;
    line-height: 1;
}

.about-exp-text {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-top: 4px;
}

.about-content {
    padding: 20px 0;
}

.about-text {
    color: var(--color-text-secondary);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 20px;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 28px;
    margin-top: 40px;
}

.about-feature {
    display: flex;
    gap: 18px;
    align-items: flex-start;
}

.feature-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-gold-muted);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

.about-feature h4,
.service-card h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 6px;
}

.about-feature p,
.service-card p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ===== PRODUCTS ===== */
.products {
    background: var(--color-bg-primary);
    position: relative;
}

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

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

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

.product-card:hover {
    transform: translateY(-6px);
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-lg), 0 0 40px rgba(201, 168, 76, 0.08);
}

.product-image {
    position: relative;
    overflow: hidden;
    height: 220px;
}

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

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

.product-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    background: var(--color-gold);
    color: var(--color-text-dark);
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.product-info {
    padding: 24px;
}

.product-info h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 10px;
}

.product-info > p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}

.product-features {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 20px;
}

.product-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.product-features li::before {
    content: '';
    flex-shrink: 0;
    width: 5px;
    height: 5px;
    background: var(--color-gold);
    border-radius: 50%;
}

/* ===== SERVICES ===== */
.services {
    background: var(--color-bg-secondary);
    position: relative;
}

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

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

.service-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 36px 28px;
    text-align: center;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-gold-dark), var(--color-gold-light));
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-md);
}

.service-icon-wrap {
    margin-bottom: 24px;
}

.service-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-gold-muted);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.service-card:hover .service-icon {
    background: var(--color-gold);
    border-color: var(--color-gold);
}

.service-card:hover .service-icon svg {
    stroke: var(--color-text-dark);
}

.service-icon svg {
    transition: stroke var(--transition-base);
}

.service-card p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ===== GALLERY ===== */
.gallery {
    background: var(--color-bg-primary);
    position: relative;
}

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

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 4/3;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(10, 14, 26, 0.85) 0%, transparent 60%);
    display: flex;
    align-items: flex-end;
    padding: 24px;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay span {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

/* ===== CONTACT ===== */
.contact {
    background: var(--color-bg-secondary);
    position: relative;
}

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

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.contact-text {
    font-size: 1rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.contact-item {
    display: flex;
    gap: 18px;
    align-items: flex-start;
}

.contact-icon {
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-gold-muted);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

.contact-item-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.contact-item-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
}

.contact-item-value {
    font-size: 1rem;
    color: var(--color-text-primary);
    line-height: 1.6;
}

.contact-link {
    color: var(--color-gold);
    transition: color var(--transition-fast);
}

.contact-link:hover {
    color: var(--color-gold-light);
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 44px;
}

.form-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 28px;
}

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

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
    outline: none;
}

.form-input::placeholder {
    color: var(--color-text-muted);
}

.form-input:focus {
    border-color: var(--color-gold);
    box-shadow: 0 0 0 3px rgba(201, 168, 76, 0.1);
    background: var(--color-bg-elevated);
}

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

.form-success {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 48px 24px;
    gap: 16px;
}

.form-success.show {
    display: flex;
}

.form-success h4 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    color: var(--color-text-primary);
}

.form-success p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

/* ===== MAP ===== */
.map-section {
    padding: 0;
    background: var(--color-bg-primary);
}

.map-container {
    height: 400px;
    filter: saturate(0.6) brightness(0.8) contrast(1.1);
    transition: filter var(--transition-base);
}

.map-container:hover {
    filter: saturate(0.8) brightness(0.85) contrast(1.05);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--color-bg-primary);
    border-top: 1px solid var(--color-border);
    padding: 80px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    padding-bottom: 60px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 18px;
}

.footer-desc {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    max-width: 280px;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 20px;
}

.footer-links ul,
.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

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

.footer-contact li {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    font-size: 0.88rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.footer-contact-link {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.footer-contact-link:hover {
    color: var(--color-gold);
}

.footer-bottom {
    border-top: 1px solid var(--color-border);
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-bottom p {
    font-size: 0.82rem;
    color: var(--color-text-muted);
}

/* ===== BACK TO TOP ===== */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    background: var(--color-gold);
    color: var(--color-text-dark);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-gold);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--color-gold-light);
    transform: translateY(-3px);
}

/* ===== SCROLL REVEAL ===== */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
    }
    
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .about-grid {
        gap: 48px;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    section {
        padding: 72px 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--color-bg-secondary);
        flex-direction: column;
        align-items: flex-start;
        padding: 100px 32px 40px;
        gap: 4px;
        transition: right var(--transition-base);
        border-left: 1px solid var(--color-border);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.open {
        right: 0;
    }
    
    .nav-link {
        width: 100%;
        padding: 14px 0;
        font-size: 1rem;
        border-bottom: 1px solid var(--color-border);
    }
    
    .nav-cta {
        margin-left: 0;
        margin-top: 16px;
        text-align: center;
        width: 100%;
        justify-content: center;
    }
    
    .hero-content {
        padding: 120px 24px 80px;
    }
    
    .hero-stats {
        gap: 24px;
    }
    
    .hero-stat-number {
        font-size: 1.5rem;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .about-image-accent {
        right: 20px;
        bottom: -20px;
    }
    
    .about-experience-badge {
        left: 10px;
        top: -10px;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .contact-form-wrapper {
        padding: 28px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-scroll {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero-stats {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }
    
    .hero-stat-divider {
        display: none;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .about-image-main img {
        height: 300px;
    }
}

/* Mobile overlay */
.nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10, 14, 26, 0.7);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.nav-overlay.active {
    opacity: 1;
    visibility: visible;
}