:root {
    /* Color Palette */
    --color-primary: #1A202C; /* Deep Slate/Navy */
    --color-secondary: #2D3748;
    --color-accent: #C59B5F; /* Soft Gold/Bronze */
    --color-accent-hover: #A37F4C;
    --color-light: #F7FAFC;
    --color-white: #FFFFFF;
    --color-text-main: #2D3748;
    --color-text-muted: #718096;
    
    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing & Layout */
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --border-radius: 8px;
    --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    --box-shadow-hover: 0 15px 40px rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--color-text-main);
    background-color: var(--color-light);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-primary);
    line-height: 1.2;
    margin-bottom: 1rem;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-padding {
    padding: 6rem 0;
}

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

.bg-light {
    background-color: var(--color-white);
}

/* Typography Utilities */
.subtitle {
    display: block;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 4px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.875rem;
    cursor: pointer;
    border: 2px solid transparent;
}

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

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

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

.btn-outline:hover {
    background-color: var(--color-white);
    color: var(--color-primary);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1rem;
}

/* Header & Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition);
}

header.scrolled {
    background-color: var(--color-white);
    padding: 1rem 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

header.scrolled .logo a,
header.scrolled .nav-links a {
    color: var(--color-primary);
}

header.scrolled .mobile-menu-btn span {
    background-color: var(--color-primary);
}

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

.logo a {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-white);
}

.logo span {
    color: var(--color-accent);
    font-style: italic;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    color: var(--color-white);
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: var(--transition);
}

.nav-links a:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 30px;
    height: 2px;
    background-color: var(--color-white);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.05);
    animation: slowZoom 20s infinite alternate;
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(26, 32, 44, 0.9) 0%, rgba(26, 32, 44, 0.4) 100%);
}

.hero-content {
    max-width: 800px;
}

.hero-content h1 {
    color: var(--color-white);
    font-size: 4.5rem;
    margin-bottom: 1.5rem;
}

.hero-content h1 span {
    color: var(--color-accent);
    font-style: italic;
}

.hero-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    max-width: 600px;
}

.hero-btns {
    display: flex;
    gap: 1.5rem;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.about-text p {
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.stats {
    display: flex;
    gap: 3rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.stat-item h3 {
    font-size: 2rem;
    color: var(--color-accent);
    margin-bottom: 0.25rem;
}

.stat-item p {
    font-size: 0.9rem;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
    margin-bottom: 0;
}

.image-wrapper {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.image-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    box-shadow: inset 0 0 0 1px rgba(0,0,0,0.1);
    border-radius: var(--border-radius);
    pointer-events: none;
}

.image-wrapper img {
    transition: transform 0.5s ease;
}

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

/* Process Section */
.section-header {
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.section-header h2 {
    font-size: 2.5rem;
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

/* Keep the five manufacturing stages in one row on desktop. */
.manufacturing-process-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0.85rem;
    align-items: stretch;
}

.manufacturing-process-grid .card-image {
    height: 160px;
}

.manufacturing-process-grid .card-content {
    padding: 1.25rem;
}

.manufacturing-process-grid .card-content h3 {
    font-size: 1.05rem;
    margin-bottom: 0.75rem;
}

.manufacturing-process-grid .card-content p {
    font-size: 0.85rem;
    line-height: 1.55;
}

.process-card {
    background-color: var(--color-light);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.process-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--box-shadow-hover);
}

.card-image {
    height: 200px;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.process-card:hover .card-image img {
    transform: scale(1.1);
}

.card-content {
    padding: 2rem;
}

.card-content h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.card-content p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

/* CTA Section */
.cta {
    background-color: var(--color-primary);
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(197, 155, 95, 0.1) 0%, rgba(255,255,255,0) 70%);
    border-radius: 50%;
}

.cta h2 {
    color: var(--color-white);
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.cta p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
}

/* Footer */
footer {
    background-color: #11151d;
    color: rgba(255, 255, 255, 0.7);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand h3 {
    color: var(--color-white);
    font-family: var(--font-heading);
    margin-bottom: 1rem;
}

.footer-brand span {
    color: var(--color-accent);
    font-style: italic;
}

.footer-links h4, .footer-contact h4 {
    color: var(--color-white);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.footer-links ul li {
    margin-bottom: 0.75rem;
}

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

.footer-contact p {
    margin-bottom: 0.75rem;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.875rem;
}

/* Animations & Micro-interactions */
@keyframes slowZoom {
    0% { transform: scale(1); }
    100% { transform: scale(1.1); }
}

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.is-visible {
    opacity: 1;
    transform: translate(0);
}

/* Responsive Design */
@media (max-width: 992px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .manufacturing-process-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
    
    .hero-content h1 {
        font-size: 3.5rem;
    }
}

@media (max-width: 768px) {
    .manufacturing-process-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-content h1 {
        font-size: 2.8rem;
    }
    
    .hero-btns {
        flex-direction: column;
        gap: 1rem;
    }
    
    .hero-btns .btn {
        width: 100%;
        text-align: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* Contact Page Styles */
.page-header {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 10rem 0 6rem;
    position: relative;
}

.page-header h1 {
    color: var(--color-white);
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.page-header h1 span {
    color: var(--color-accent);
    font-style: italic;
}

.page-header p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
    max-width: 600px;
    margin: 0 auto;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
}

.contact-info h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.contact-info p {
    color: var(--color-text-muted);
    margin-bottom: 2.5rem;
}

.info-block {
    margin-bottom: 2rem;
}

.info-block h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--color-primary);
}

.info-block p {
    color: var(--color-text-muted);
    margin-bottom: 0;
    line-height: 1.8;
}

.info-block a {
    color: var(--color-accent);
}

.info-block a:hover {
    text-decoration: underline;
}

.contact-form-container {
    background: var(--color-white);
    padding: 3rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--color-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1px solid #E2E8F0;
    border-radius: 4px;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text-main);
    transition: var(--transition);
    background-color: var(--color-light);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(197, 155, 95, 0.1);
}

@media (max-width: 992px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
}



@media (max-width: 480px) {
    .manufacturing-process-grid {
        grid-template-columns: 1fr;
    }
}
/* Gallery Page */
.nav-links a.active::after { width: 100%; }

.gallery-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 3rem;
}

.filter-btn {
    padding: 0.6rem 1.5rem;
    border: 1px solid #E2E8F0;
    border-radius: 999px;
    background: var(--color-white);
    color: var(--color-primary);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

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

.filter-btn:focus-visible,
.lightbox-close:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 2px; }

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.5rem;
}

.gallery-item {
    background: var(--color-light);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    cursor: zoom-in;
}

.gallery-item[hidden] { display: none; }

.gallery-item img {
    width: 100%;
    aspect-ratio: 4 / 5;
    object-fit: cover;
    background: #E2E8F0;
    transition: transform 0.4s ease;
}

.gallery-item:hover img { transform: scale(1.04); }
.gallery-item { overflow: hidden; }

.gallery-item figcaption {
    padding: 1rem 1.25rem 1.25rem;
    background: var(--color-white);
    position: relative;
}

.gallery-item figcaption strong {
    display: block;
    color: var(--color-primary);
    font-size: 1rem;
}

.gallery-item figcaption span {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.gallery-empty {
    text-align: center;
    color: var(--color-text-muted);
    margin-top: 2rem;
}

.lightbox {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(17, 21, 29, 0.92);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.lightbox[hidden] { display: none; }

.lightbox img {
    max-width: 100%;
    max-height: 80vh;
    border-radius: var(--border-radius);
}

.lightbox-caption {
    color: rgba(255, 255, 255, 0.85);
    margin-top: 1rem;
    text-align: center;
}

.lightbox-close {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    background: none;
    border: none;
    color: var(--color-white);
    font-size: 2.5rem;
    line-height: 1;
    cursor: pointer;
}

@media (prefers-reduced-motion: reduce) {
    .gallery-item img { transition: none; }
}

/* Mobile menu open state */
@media (max-width: 768px) {
    .nav-links.open {
        display: flex;
        flex-direction: column;
        gap: 1rem;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        padding: 1.5rem 2rem;
        background: var(--color-primary);
    }
}