/* ===================================
   Wellsilk Garment - Main Stylesheet
   Modern, Minimalist, Luxury
   =================================== */

/* CSS Variables */
:root {
    /* Colors */
    --color-primary: #de2420;
    --color-primary-dark: #b81d1a;
    --color-text: #1a1a1a;
    --color-text-light: #666666;
    --color-text-muted: #999999;
    --color-background: #ffffff;
    --color-background-alt: #f8f8f8;
    --color-background-dark: #1a1a1a;
    --color-border: #e5e5e5;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;
    --spacing-3xl: 8rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);

    /* Container */
    --container-max: 1200px;
    --container-padding: 1.5rem;
}

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

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

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

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

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 500;
    line-height: 1.2;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.section-intro {
    font-size: 1.125rem;
    color: var(--color-text-light);
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-size: 0.9375rem;
    font-weight: 500;
    letter-spacing: 0.025em;
    border-radius: 0;
    transition: all var(--transition-base);
    text-transform: uppercase;
}

.btn-primary {
    background-color: var(--color-primary);
    color: #ffffff;
}

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

.btn-outline {
    border: 1px solid var(--color-border);
    color: var(--color-text);
    background: transparent;
}

.btn-outline:hover {
    border-color: var(--color-text);
    background-color: var(--color-text);
    color: #ffffff;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: transparent;
    transition: all var(--transition-base);
    padding: var(--spacing-md) 0;
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-sm) 0;
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo .logo {
    height: 40px;
    width: auto;
    transition: all var(--transition-base);
}

.navbar.scrolled .nav-logo .logo {
    height: 32px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: #ffffff;
    transition: color var(--transition-fast);
}

.navbar.scrolled .nav-link {
    color: var(--color-text);
}

.nav-link:hover {
    color: var(--color-primary);
}

.nav-cta {
    padding: 0.625rem 1.25rem;
    background-color: var(--color-primary);
    color: #ffffff !important;
}

.nav-cta:hover {
    background-color: var(--color-primary-dark);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 5px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: #ffffff;
    transition: all var(--transition-fast);
}

.navbar.scrolled .nav-toggle span {
    background-color: var(--color-text);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: url('../images/facility/Factory-20230420-03.jpg') center/cover no-repeat;
    text-align: center;
    color: #ffffff;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.5) 0%,
        rgba(0, 0, 0, 0.4) 50%,
        rgba(0, 0, 0, 0.6) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    padding: var(--spacing-lg);
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    font-weight: 300;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
}

/* Trust Indicators */
.trust-indicators {
    background-color: var(--color-background-dark);
    color: #ffffff;
    padding: var(--spacing-xl) 0;
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    text-align: center;
}

.trust-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.trust-number {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 500;
}

.trust-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Section Styling */
.section {
    padding: var(--spacing-3xl) 0;
}

.section:nth-child(even) {
    background-color: var(--color-background-alt);
}

/* Capabilities Section */
.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.capability-card {
    background-color: var(--color-background);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.capability-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.capability-card.featured {
    border-color: var(--color-primary);
    position: relative;
}

.capability-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--spacing-md);
}

.capability-icon svg {
    width: 100%;
    height: 100%;
    stroke: var(--color-primary);
}

.capability-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.capability-badge {
    display: inline-block;
    background-color: var(--color-primary);
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.25rem 0.75rem;
    margin-bottom: var(--spacing-md);
}

.capability-card ul {
    margin-bottom: var(--spacing-lg);
}

.capability-card li {
    position: relative;
    padding-left: 1.25rem;
    margin-bottom: 0.5rem;
    font-size: 0.9375rem;
    color: var(--color-text-light);
}

.capability-card li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.625rem;
    width: 6px;
    height: 6px;
    background-color: var(--color-primary);
    border-radius: 50%;
}

.capability-learn-more {
    width: 100%;
    margin-top: auto;
}

/* Clients Section */
.clients-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.client-image {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
    cursor: pointer;
}

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

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

.client-name {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-sm);
    background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
    color: #ffffff;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.notable-section {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.notable-text {
    font-size: 1.125rem;
    font-style: italic;
    color: var(--color-text-light);
}

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

.process-timeline::before {
    content: '';
    position: absolute;
    left: 24px;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--color-border);
}

.process-step {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.process-step:last-child {
    margin-bottom: 0;
}

.step-number {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary);
    color: #ffffff;
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 500;
    position: relative;
    z-index: 1;
}

.step-content h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.step-content p {
    color: var(--color-text-light);
}

/* Gallery Section */
.gallery-tabs {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.gallery-tab {
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid var(--color-border);
    background: transparent;
    transition: all var(--transition-fast);
}

.gallery-tab:hover,
.gallery-tab.active {
    background-color: var(--color-text);
    color: #ffffff;
    border-color: var(--color-text);
}

.gallery-grid {
    display: none;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-sm);
}

.gallery-grid.active {
    display: grid;
}

.gallery-item {
    aspect-ratio: 1;
    overflow: hidden;
    cursor: pointer;
}

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

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

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.about-content .section-title {
    text-align: left;
}

.about-content p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-light);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.value-item h4 {
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.value-item p {
    font-size: 0.875rem;
    margin-bottom: 0;
}

.about-image {
    aspect-ratio: 4/5;
    overflow: hidden;
}

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

/* Contact Section */
.contact {
    background-color: var(--color-background-alt);
}

.contact-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-2xl);
}

.contact-form {
    background-color: var(--color-background);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    font-size: 1rem;
    font-family: inherit;
    border: 1px solid var(--color-border);
    background-color: var(--color-background);
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-text);
}

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

.btn-submit {
    width: 100%;
    padding: 1rem;
}

.contact-info {
    align-self: start;
}

.contact-card {
    background-color: var(--color-background);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
}

.contact-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
}

.contact-item {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.contact-item svg {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    stroke: var(--color-primary);
}

.contact-item a {
    color: var(--color-text);
}

.contact-item a:hover {
    color: var(--color-primary);
}

.contact-item p {
    font-size: 0.9375rem;
    margin-bottom: 0.25rem;
}

/* Footer */
.footer {
    background-color: var(--color-background-dark);
    color: #ffffff;
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    height: 36px;
    width: auto;
    margin-bottom: var(--spacing-md);
    filter: brightness(0) invert(1);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-primary);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-md);
}

.footer-links ul li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: #ffffff;
}

.footer-contact p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
    margin-bottom: 0.25rem;
}

.footer-note {
    font-style: italic;
    margin-top: var(--spacing-sm) !important;
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    background-color: var(--color-text);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

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

.back-to-top svg {
    width: 24px;
    height: 24px;
}

/* Lightbox */
.lightbox {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-content {
    max-width: 90vw;
    max-height: 90vh;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
}

.lightbox-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 48px;
    height: 48px;
    color: #ffffff;
    font-size: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity var(--transition-fast);
}

.lightbox-close:hover {
    opacity: 0.7;
}

.lightbox-prev,
.lightbox-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity var(--transition-fast);
}

.lightbox-prev:hover,
.lightbox-next:hover {
    opacity: 0.7;
}

.lightbox-prev {
    left: 1rem;
}

.lightbox-next {
    right: 1rem;
}

.lightbox-prev svg,
.lightbox-next svg {
    width: 32px;
    height: 32px;
}

/* Modals */
.modal {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 1500;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: var(--color-background);
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    padding: var(--spacing-xl);
    position: relative;
    transform: translateY(20px);
    transition: transform var(--transition-base);
}

.modal.active .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 32px;
    height: 32px;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity var(--transition-fast);
}

.modal-close:hover {
    opacity: 0.7;
}

.modal-content h2 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
    padding-right: 2rem;
}

.modal-content h3 {
    font-size: 1.125rem;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.modal-content p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.modal-content ul {
    margin-bottom: var(--spacing-md);
}

.modal-content li {
    position: relative;
    padding-left: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--color-text-light);
}

.modal-content li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.625rem;
    width: 6px;
    height: 6px;
    background-color: var(--color-primary);
    border-radius: 50%;
}

.modal-content li strong {
    color: var(--color-text);
}

/* Success Modal */
.modal-success-content {
    text-align: center;
    padding: var(--spacing-2xl);
}

.success-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
}

.success-icon svg {
    width: 100%;
    height: 100%;
    stroke: #22c55e;
}

.modal-success-content h2 {
    padding-right: 0;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-on-scroll {
    opacity: 0;
}

.animate-on-scroll.animated {
    animation: fadeInUp 0.6s ease forwards;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .capabilities-grid {
        grid-template-columns: 1fr;
        max-width: 600px;
        margin: 0 auto;
    }

    .clients-gallery {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .about-image {
        order: -1;
        aspect-ratio: 16/9;
    }

    .about-content .section-title {
        text-align: center;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .contact-info {
        order: -1;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }

    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    :root {
        --container-padding: 1rem;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background-color: var(--color-background);
        flex-direction: column;
        padding: 5rem var(--spacing-lg) var(--spacing-lg);
        transition: right var(--transition-base);
        box-shadow: var(--shadow-xl);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-link {
        color: var(--color-text);
        font-size: 1rem;
    }

    .nav-toggle {
        display: flex;
        z-index: 1001;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .trust-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .process-timeline::before {
        left: 20px;
    }

    .step-number {
        width: 42px;
        height: 42px;
        font-size: 1rem;
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .values-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .section {
        padding: var(--spacing-2xl) 0;
    }

    .clients-gallery {
        grid-template-columns: 1fr;
    }

    .gallery-tabs {
        flex-direction: column;
        align-items: stretch;
    }

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

    .lightbox-prev,
    .lightbox-next {
        display: none;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .back-to-top,
    .modal,
    .lightbox {
        display: none;
    }

    .hero {
        min-height: auto;
        padding: 2rem 0;
    }

    .section {
        padding: 1rem 0;
    }
}