/* ============================================
   ATELIER — Fashion E-Commerce
   Design System & Styles
   ============================================ */

/* CSS Variables */
:root {
    /* Colors — Noir Editorial Palette */
    --color-bg: #0F0F0F;
    --color-bg-elevated: #1A1A1A;
    --color-bg-subtle: #2A2A2A;
    --color-text: #E8E4DF;
    --color-text-muted: #9A9590;
    --color-accent: #C8B8A0;
    --color-accent-hover: #D4C4AC;
    --color-border: rgba(232, 228, 223, 0.1);
    
    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    --space-2xl: 6rem;
    --space-3xl: 8rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Layout */
    --container-max: 1400px;
    --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-body);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -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);
}

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

ul {
    list-style: none;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 400;
    line-height: 1.1;
}

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

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.25rem 0;
    transition: background-color var(--transition-base), padding var(--transition-base);
}

.nav.scrolled {
    background-color: rgba(15, 15, 15, 0.95);
    backdrop-filter: blur(20px);
    padding: 0.75rem 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;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    color: var(--color-text);
}

.nav-links {
    display: none;
    gap: 2.5rem;
}

.nav-links a {
    font-size: 0.875rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-accent);
    transition: width var(--transition-base);
}

.nav-links a:hover {
    color: var(--color-text);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.icon-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text);
    transition: color var(--transition-fast);
    position: relative;
}

.icon-btn:hover {
    color: var(--color-accent);
}

.cart-count {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 16px;
    height: 16px;
    background-color: var(--color-accent);
    color: var(--color-bg);
    font-size: 0.625rem;
    font-weight: 600;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.menu-toggle {
    width: 40px;
    height: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.menu-toggle span {
    display: block;
    width: 20px;
    height: 1.5px;
    background-color: var(--color-text);
    transition: transform var(--transition-base), opacity var(--transition-base);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

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

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.7;
}

.hero-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to right,
        rgba(15, 15, 15, 0.95) 0%,
        rgba(15, 15, 15, 0.7) 40%,
        rgba(15, 15, 15, 0.3) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: calc(var(--space-3xl) + 4rem) var(--container-padding) var(--space-2xl);
    width: 100%;
}

.hero-label {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease forwards;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 5.5rem);
    margin-bottom: var(--space-md);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease 0.2s forwards;
}

.hero-title .line {
    display: block;
}

.hero-title .italic {
    font-style: italic;
    color: var(--color-accent);
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    max-width: 480px;
    margin-bottom: var(--space-lg);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease 0.4s forwards;
}

.hero-cta {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease 0.6s forwards;
}

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-xl);
    left: var(--container-padding);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
    color: var(--color-text-muted);
    font-size: 0.625rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    z-index: 1;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background-color: var(--color-text-muted);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { transform: scaleY(1); opacity: 1; }
    50% { transform: scaleY(0.5); opacity: 0.5; }
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    transition: all var(--transition-base);
}

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

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

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

.btn-secondary:hover {
    background-color: var(--color-text);
    color: var(--color-bg);
}

.btn-text {
    padding: 0;
    color: var(--color-accent);
    border-bottom: 1px solid transparent;
}

.btn-text:hover {
    border-bottom-color: var(--color-accent);
}

/* ============================================
   SECTIONS COMMON
   ============================================ */
.section-header {
    margin-bottom: var(--space-xl);
    text-align: center;
}

.section-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: var(--space-sm);
}

.view-all {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 2px;
    transition: color var(--transition-fast), border-color var(--transition-fast);
}

.view-all:hover {
    color: var(--color-text);
    border-color: var(--color-text);
}

/* ============================================
   CATEGORIES SECTION
   ============================================ */
.categories {
    padding: var(--space-3xl) 0;
    background-color: var(--color-bg);
}

.categories-grid {
    display: grid;
    gap: var(--space-md);
    grid-template-columns: 1fr;
}

.category-card {
    position: relative;
    aspect-ratio: 3/4;
    overflow: hidden;
    display: block;
}

.category-card.large {
    aspect-ratio: 1/1;
}

.category-image {
    position: absolute;
    inset: 0;
}

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

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

.category-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-lg);
    background: linear-gradient(to top, rgba(15, 15, 15, 0.9), transparent);
}

.category-content h3 {
    font-size: 1.75rem;
    margin-bottom: var(--space-xs);
}

.category-link {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-accent);
    opacity: 0;
    transform: translateY(10px);
    transition: opacity var(--transition-base), transform var(--transition-base);
}

.category-card:hover .category-link {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   PRODUCTS SECTION
   ============================================ */
.products {
    padding: var(--space-3xl) 0;
    background-color: var(--color-bg-elevated);
}

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

.product-card {
    position: relative;
}

.product-image {
    position: relative;
    aspect-ratio: 3/4;
    overflow: hidden;
    background-color: var(--color-bg-subtle);
    margin-bottom: var(--space-sm);
}

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

.product-card:hover .product-image img {
    transform: scale(1.03);
}

.quick-add {
    position: absolute;
    bottom: var(--space-sm);
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background-color: var(--color-bg);
    color: var(--color-text);
    padding: 0.75rem 1.5rem;
    font-size: 0.625rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    opacity: 0;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.product-card:hover .quick-add {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.quick-add:hover {
    background-color: var(--color-accent);
    color: var(--color-bg);
}

.badge {
    position: absolute;
    top: var(--space-sm);
    left: var(--space-sm);
    padding: 0.375rem 0.75rem;
    font-size: 0.625rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.badge.new {
    background-color: var(--color-accent);
    color: var(--color-bg);
}

.badge.limited {
    background-color: var(--color-text);
    color: var(--color-bg);
}

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

.product-name {
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 400;
    margin-bottom: 0.25rem;
    color: var(--color-text);
}

.product-price {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* ============================================
   EDITORIAL SECTION
   ============================================ */
.editorial {
    padding: var(--space-3xl) 0;
    background-color: var(--color-bg);
}

.editorial-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: grid;
    gap: var(--space-xl);
    align-items: center;
}

.editorial-image {
    position: relative;
    aspect-ratio: 4/5;
    overflow: hidden;
}

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

.editorial-content {
    max-width: 500px;
}

.editorial-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--space-md);
}

.editorial-text {
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
    line-height: 1.8;
}

/* ============================================
   VALUES SECTION
   ============================================ */
.values {
    padding: var(--space-3xl) 0;
    background-color: var(--color-bg-elevated);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.values-grid {
    display: grid;
    gap: var(--space-xl);
    text-align: center;
}

.value-item {
    max-width: 300px;
    margin: 0 auto;
}

.value-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
}

.value-item h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-xs);
}

.value-item p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* ============================================
   NEWSLETTER SECTION
   ============================================ */
.newsletter {
    padding: var(--space-3xl) 0;
    background-color: var(--color-bg);
}

.newsletter-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.newsletter h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--space-sm);
}

.newsletter p {
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
}

.newsletter-form {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
    justify-content: center;
}

.newsletter-form input {
    flex: 1;
    min-width: 280px;
    padding: 1rem 1.25rem;
    background-color: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    font-size: 0.875rem;
    transition: border-color var(--transition-fast);
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--color-accent);
}

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

/* ============================================
   FOOTER
   ============================================ */
.footer {
    padding: var(--space-3xl) 0 var(--space-xl);
    background-color: var(--color-bg-elevated);
    border-top: 1px solid var(--color-border);
}

.footer-grid {
    display: grid;
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

.footer-brand .logo {
    display: inline-block;
    margin-bottom: var(--space-md);
}

.footer-brand p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    max-width: 280px;
    margin-bottom: var(--space-md);
    line-height: 1.7;
}

.social-links {
    display: flex;
    gap: var(--space-sm);
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    border: 1px solid var(--color-border);
    transition: all var(--transition-fast);
}

.social-links a:hover {
    color: var(--color-text);
    border-color: var(--color-text);
}

.footer-links h4 {
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

.footer-links li {
    margin-bottom: var(--space-xs);
}

.footer-links a {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.footer-legal {
    display: flex;
    gap: var(--space-md);
}

.footer-legal a:hover {
    color: var(--color-text);
}

/* ============================================
   RESPONSIVE STYLES
   ============================================ */
@media (min-width: 640px) {
    :root {
        --container-padding: 2rem;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) {
    .nav-links {
        display: flex;
    }
    
    .menu-toggle {
        display: none;
    }
    
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .category-card.large {
        grid-column: span 2;
        aspect-ratio: 16/9;
    }
    
    .values-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 2fr repeat(3, 1fr);
    }
    
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

@media (min-width: 1024px) {
    :root {
        --container-padding: 3rem;
    }
    
    .categories-grid {
        grid-template-columns: 2fr 1fr;
        grid-template-rows: repeat(2, 1fr);
    }
    
    .category-card.large {
        grid-row: span 2;
        aspect-ratio: auto;
    }
    
    .products-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .editorial-container {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-3xl);
    }
}

@media (min-width: 1280px) {
    :root {
        --container-padding: 4rem;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}