/* ============================================
   AVANT GALLERIE — Design System & Layouts
   Clone layout: Acne Studios
   Brand: Burgundy + Cream + Gold
   ============================================ */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;0,700;1,300;1,400;1,500&family=Inter:wght@300;400;500;600&display=swap');

/* ---------- CSS Variables (Design Tokens) ---------- */
:root {
  /* Brand Colors */
  --color-burgundy: #6B1520;
  --color-burgundy-dark: #4A0E16;
  --color-burgundy-light: #8B2030;
  --color-cream: #F5F0E8;
  --color-cream-dark: #EDE5D8;
  --color-gold: #C4A265;
  --color-gold-light: #D4B87A;

  /* Neutrals */
  --color-black: #1A1A1A;
  --color-white: #FFFFFF;
  --color-gray-100: #F8F7F5;
  --color-gray-200: #EFEFED;
  --color-gray-300: #D4D2CE;
  --color-gray-500: #8A8680;
  --color-gray-700: #4A4843;

  /* Typography */
  --font-display: 'Cormorant Garamond', 'Georgia', serif;
  --font-body: 'Inter', 'Helvetica Neue', Arial, sans-serif;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --space-2xl: 64px;
  --space-3xl: 100px;
  --space-4xl: 140px;

  /* Layout */
  --header-height: 80px;
  --max-width: 1440px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

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

body {
  font-family: var(--font-body);
  color: var(--color-black);
  background-color: var(--color-white);
  line-height: 1.5;
  overflow-x: hidden;
}

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

a:hover {
  opacity: 0.7;
}

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

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

ul, ol {
  list-style: none;
}

/* ---------- Utility ---------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ============================================
   HEADER / NAVIGATION
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--color-burgundy);
  border-bottom: 1px solid var(--color-burgundy-dark);
  height: var(--header-height);
  transition: box-shadow var(--transition-base);
}

.site-header.scrolled {
  box-shadow: 0 2px 12px rgba(74, 14, 22, 0.25);
}

.header-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 100%;
  padding: 0 var(--space-lg);
}

/* Main Nav (Left) */
.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.main-nav a {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.5px;
  color: var(--color-white);
  position: relative;
  padding: 2px 0;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: currentColor;
  transition: width var(--transition-base);
}

.main-nav a:hover {
  opacity: 0.7;
}

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

/* Center Logo */
.header-logo {
  display: flex;
  align-items: center;
  justify-content: center;
}

.header-logo-img {
  height: 55px;
  width: auto;
  object-fit: contain;
  transition: filter var(--transition-base);
}

/* Utility Nav (Right) */
.utility-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-md);
}

.utility-nav a,
.utility-nav button {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 400;
  color: var(--color-white);
  display: flex;
  align-items: center;
  gap: 6px;
}

.utility-nav a:hover,
.utility-nav button:hover {
  opacity: 0.7;
}

.utility-nav svg {
  width: 18px;
  height: 18px;
}

.cart-count {
  font-size: 11px;
  font-weight: 400;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 24px;
  padding: 4px 0;
}

.mobile-menu-toggle span {
  display: block;
  width: 100%;
  height: 1.5px;
  background-color: var(--color-black);
  transition: transform var(--transition-base), opacity var(--transition-fast);
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

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

.mobile-menu-toggle.active span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* Mobile Nav Overlay */
.mobile-nav-overlay {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-white);
  z-index: 999;
  padding: var(--space-xl) var(--space-md);
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.mobile-nav-overlay.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.mobile-nav-overlay a {
  display: block;
  font-size: 24px;
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-gray-200);
  color: var(--color-black);
}

.mobile-nav-overlay a:hover {
  color: var(--color-burgundy);
  opacity: 1;
}

/* ============================================
   HERO SECTION — Split Screen
  /* ---------- HERO ---------- */
.hero-section {
  position: relative;
  width: 100%;
  min-height: calc(100vh - var(--header-height));
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: calc(100vh - var(--header-height));
}

.hero-panel {
  position: relative;
  overflow: hidden;
  min-height: 500px;
}

.hero-panel img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform 8s ease;
}

.hero-panel:hover img {
  transform: scale(1.03);
}

.hero-panel-link {
  display: none;
}

.hero-panel--woman .hero-panel-link {
  left: var(--space-lg);
}

.hero-panel--man .hero-panel-link {
  left: var(--space-lg);
}

.hero-panel-link:hover {
  opacity: 1;
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* Hero panel bottom labels */
.hero-panel-label {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.9);
  color: var(--color-black);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 400;
  padding: 10px 30px;
  border-radius: 30px;
  letter-spacing: 0.5px;
  z-index: 2;
  transition: background var(--transition-fast);
}

.hero-panel-label:hover {
  background: var(--color-white);
}

/* ============================================
   PRODUCT CATEGORIES — 4-Column Grid
   ============================================ */
.categories-section {
  padding: var(--space-3xl) var(--space-sm) var(--space-2xl);
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.category-card {
  text-align: left;
}

.category-card-label {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-black);
  margin-bottom: var(--space-md);
  display: block;
}

.category-card-label:hover {
  color: var(--color-burgundy);
  opacity: 1;
}

.category-card-image {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background-color: var(--color-gray-100);
}

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

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

/* ============================================
   CAMPAIGN GRID — 5-Column Grid
   ============================================ */
.campaign-section {
  padding: var(--space-2xl) var(--space-sm) var(--space-3xl);
}

.campaign-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
}

.campaign-card {
  display: block;
}

.campaign-card-image {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  margin-bottom: var(--space-md);
}

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

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

.campaign-card-title {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-burgundy);
  margin-bottom: var(--space-sm);
}

.campaign-card-desc {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 400;
  color: var(--color-gray-700);
  line-height: 1.6;
}

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

.newsletter-inner {
  max-width: 680px;
  margin: 0 auto;
  text-align: left;
}

.newsletter-title {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-sm);
}

.newsletter-desc {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 400;
  color: var(--color-cream);
  margin-bottom: var(--space-xl);
}

.newsletter-form {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--color-cream-dark);
}

.newsletter-form input[type="email"] {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font-family: var(--font-body);
  font-size: 14px;
  padding: var(--space-md) 0;
  color: var(--color-cream);
}

.newsletter-form input[type="email"]::placeholder {
  color: var(--color-cream-dark);
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 1px;
}

.newsletter-form button[type="submit"] {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-gold);
  padding: var(--space-md) var(--space-lg);
  transition: color var(--transition-fast);
}

.newsletter-form button[type="submit"]:hover {
  color: var(--color-cream);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  border-top: none;
  background-color: var(--color-burgundy-dark);
  padding: var(--space-2xl) var(--space-sm) 0;
  color: var(--color-cream);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  padding-bottom: var(--space-2xl);
}

.footer-column-title {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-lg);
}

.footer-column ul li {
  margin-bottom: var(--space-sm);
}

.footer-column ul li a {
  font-size: 13px;
  font-weight: 400;
  color: var(--color-cream-dark);
  transition: color var(--transition-fast);
}

.footer-column ul li a:hover {
  color: var(--color-gold);
  opacity: 1;
}

.footer-status {
  font-size: 11px;
  color: var(--color-cream-dark);
  font-style: italic;
}

/* Footer Bottom Bar */
.footer-bottom {
  border-top: 1px solid rgba(245, 240, 232, 0.15);
  padding: var(--space-md) var(--space-sm);
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-copyright {
  font-size: 11px;
  font-weight: 400;
  color: var(--color-cream-dark);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

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

.footer-social a {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-cream);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.footer-social a:hover {
  color: var(--color-gold);
  opacity: 1;
}

.footer-locale {
  font-size: 11px;
  font-weight: 400;
  color: var(--color-cream-dark);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   RESPONSIVE — Tablet (< 1024px)
   ============================================ */
@media (max-width: 1024px) {
  .campaign-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .hero-brand-name {
    font-size: clamp(50px, 10vw, 140px);
  }

  .categories-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }
}

/* ============================================
   RESPONSIVE — Mobile (< 768px)
   ============================================ */
@media (max-width: 768px) {
  :root {
    --header-height: 50px;
  }

  /* Header */
  .main-nav {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .utility-nav .nav-label {
    display: none;
  }

  /* Hero */
  .hero-grid {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-panel {
    min-height: 60vh;
  }

  .hero-brand-overlay {
    position: absolute;
    top: auto;
    bottom: 0;
    left: 50%;
    transform: translate(-50%, 50%);
  }

  .hero-brand-name {
    font-size: clamp(40px, 14vw, 100px);
  }

  /* Hero panel links */
  .hero-panel-link {
    font-size: 11px;
  }

  /* Categories */
  .categories-section {
    padding: var(--space-2xl) var(--space-md);
  }

  .categories-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
  }

  /* Campaign */
  .campaign-section {
    padding: var(--space-xl) var(--space-md);
  }

  .campaign-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
  }

  .campaign-grid .campaign-card:last-child {
    grid-column: 1 / -1;
  }

  /* Footer */
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }

  .footer-bottom-inner {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  /* Newsletter */
  .newsletter-section {
    padding: var(--space-2xl) var(--space-md);
  }
}

/* ============================================
   RESPONSIVE — Small Mobile (< 480px)
   ============================================ */
@media (max-width: 480px) {
  .hero-panel {
    min-height: 50vh;
  }

  .hero-brand-name {
    font-size: clamp(36px, 16vw, 80px);
  }

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

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

  .campaign-grid .campaign-card:last-child {
    grid-column: auto;
  }

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

/* ============================================
   SUB-PAGES — Category / Lookbook
   ============================================ */

/* Category Hero Banner */
.page-hero {
  background-color: var(--color-cream);
  padding: var(--space-2xl) var(--space-lg);
  text-align: center;
}

.page-hero-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 6vw, 72px);
  font-weight: 400;
  font-style: italic;
  color: var(--color-burgundy);
  letter-spacing: 2px;
  margin-bottom: var(--space-sm);
}

.page-hero-subtitle {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 400;
  color: var(--color-gray-700);
  letter-spacing: 0.5px;
}

/* Breadcrumb */
.breadcrumb {
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--color-gray-500);
  letter-spacing: 0.5px;
}

.breadcrumb a {
  color: var(--color-gray-500);
}

.breadcrumb a:hover {
  color: var(--color-burgundy);
  opacity: 1;
}

.breadcrumb span {
  color: var(--color-black);
}

/* Product Grid */
.product-grid-section {
  padding: var(--space-xl) var(--space-lg) var(--space-3xl);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.product-card {
  display: block;
  text-align: left;
}

.product-card-image {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background-color: var(--color-gray-100);
  margin-bottom: var(--space-sm);
}

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

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

.product-card-info {
  padding: var(--space-xs) 0;
}

.product-card-name {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 400;
  color: var(--color-black);
  margin-bottom: 4px;
  line-height: 1.4;
}

.product-card-price {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-burgundy);
}

/* Active Nav State */
.main-nav a.active {
  opacity: 1;
  border-bottom: 1px solid var(--color-gold);
  padding-bottom: 2px;
}

/* Lookbook Grid */
.lookbook-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  padding: var(--space-lg);
}

.lookbook-item {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
}

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

.lookbook-item:hover img {
  transform: scale(1.05);
}

.lookbook-item:nth-child(3n+1) {
  grid-row: span 1;
}

/* Sub-page Responsive */
@media (max-width: 1024px) {
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .lookbook-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
  }
  .lookbook-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2px;
  }
  .page-hero {
    padding: var(--space-xl) var(--space-md);
  }
}