/* ===================================================================
   Calitoy Muse — Design System
   Luxury evening wear & lingerie. Dark, sensual, editorial.
   Fonts: Cormorant Garamond (display) + Inter (body) + Italiana (accents)
   =================================================================== */

:root {
  /* Backgrounds — layered dark surfaces */
  --bg-base: #0a0908;
  --bg-surface: #14110f;
  --bg-card: #1c1814;
  --bg-elevated: #241e18;

  /* Text */
  --text-primary: #f5f0eb;
  --text-secondary: #c4b8ab;
  --text-muted: #8a7e6f;

  /* Accents — wine, gold, nude */
  --accent: #8b1a3a;
  --accent-light: #b8354f;
  --accent-dim: #5a1024;
  --gold: #c9a96e;
  --gold-dim: #8a7449;
  --nude: #d4b896;
  --rose: #c67b7b;

  /* Lines & borders */
  --line: rgba(201, 169, 110, 0.15);
  --line-strong: rgba(201, 169, 110, 0.3);
  --border: rgba(255, 255, 255, 0.06);

  /* Typography */
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Layout */
  --max-width: 1400px;
  --content-width: 760px;
  --gutter: clamp(20px, 4vw, 60px);

  /* Radius */
  --r-sm: 2px;
  --r-md: 4px;
  --r-lg: 8px;

  /* Transitions */
  --t-fast: 0.2s ease;
  --t-med: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --t-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
}

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

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  overflow-x: hidden;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb { background: var(--bg-elevated); border-radius: 3px; }

/* Selection */
::selection { background: var(--accent); color: var(--text-primary); }

/* Links */
a { color: var(--gold); text-decoration: none; transition: color var(--t-fast); }
a:hover { color: var(--gold-dim); }

/* Images */
img { max-width: 100%; display: block; }

/* ==================== LAYOUT ==================== */

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--gutter); }
.container-narrow { max-width: var(--content-width); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: clamp(60px, 10vw, 120px) 0; }
.section-tight { padding: clamp(40px, 6vw, 80px) 0; }

/* ==================== TYPOGRAPHY ==================== */

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.15; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.5rem, 6vw, 5rem); }
h2 { font-size: clamp(2rem, 4vw, 3.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h4 { font-size: clamp(1.2rem, 2vw, 1.5rem); }

.eyebrow {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
  display: inline-block;
  margin-bottom: 1rem;
}

.eyebrow-line::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--gold);
  vertical-align: middle;
  margin-right: 12px;
}

.display { font-family: var(--font-display); font-size: clamp(3rem, 8vw, 7rem); font-weight: 500; line-height: 1; letter-spacing: -0.03em; }
.italic { font-style: italic; }
.serif { font-family: var(--font-display); }
.mono { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; }
.muted { color: var(--text-muted); }
.center { text-align: center; }
.lead { font-size: clamp(1.1rem, 2vw, 1.35rem); line-height: 1.6; color: var(--text-secondary); font-weight: 300; }

/* ==================== HEADER ==================== */

.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 1.5rem var(--gutter);
  display: flex; align-items: center; justify-content: space-between;
  background: transparent;
  transition: background var(--t-med), padding var(--t-med);
}

.site-header.scrolled {
  background: rgba(10, 9, 8, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 1rem var(--gutter);
  border-bottom: 1px solid var(--line);
}

.logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text-primary);
  text-decoration: none;
}
.logo span { color: var(--gold); }
.logo small { font-family: var(--font-body); font-size: 0.55rem; letter-spacing: 0.3em; text-transform: uppercase; color: var(--text-muted); display: block; }

.nav { display: flex; align-items: center; gap: 2rem; }
.nav a {
  font-size: 0.8rem; font-weight: 500; letter-spacing: 0.05em;
  color: var(--text-secondary); text-decoration: none;
  transition: color var(--t-fast);
  position: relative;
}
.nav a:hover { color: var(--text-primary); }
.nav a::after {
  content: ''; position: absolute; bottom: -4px; left: 0; right: 0;
  height: 1px; background: var(--gold);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--t-med);
}
.nav a:hover::after { transform: scaleX(1); }

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

.cart-btn {
  position: relative; background: none; border: none; cursor: pointer;
  color: var(--text-secondary); transition: color var(--t-fast);
  display: flex; align-items: center; gap: 6px;
  font-family: var(--font-body); font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase;
}
.cart-btn:hover { color: var(--gold); }
.cart-count {
  position: absolute; top: -8px; right: -12px;
  background: var(--accent); color: var(--text-primary);
  width: 18px; height: 18px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.65rem; font-family: var(--font-body); font-weight: 700;
}

.menu-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 6px;
}
.menu-toggle span { width: 24px; height: 1px; background: var(--text-primary); transition: var(--t-fast); }
.menu-toggle.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ==================== BUTTONS ==================== */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 32px;
  font-family: var(--font-body); font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.15em; text-transform: uppercase;
  border: none; cursor: pointer; transition: all var(--t-med);
  text-decoration: none; white-space: nowrap;
}

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

.btn-gold {
  background: var(--gold); color: var(--bg-base);
}
.btn-gold:hover { background: var(--gold-dim); transform: translateY(-2px); box-shadow: var(--shadow-md); }

.btn-outline {
  background: transparent; color: var(--text-primary);
  border: 1px solid var(--line-strong);
}
.btn-outline:hover { border-color: var(--gold); color: var(--gold); }

.btn-ghost {
  background: transparent; color: var(--text-secondary);
  padding: 10px 20px; font-size: 0.75rem;
}
.btn-ghost:hover { color: var(--gold); }

.btn-lg { padding: 18px 40px; font-size: 0.85rem; }
.btn-sm { padding: 10px 24px; font-size: 0.7rem; }

/* ==================== HERO ==================== */

.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10,9,8,0.4) 0%, rgba(10,9,8,0.7) 50%, var(--bg-base) 100%);
  z-index: 1;
}

.hero-content {
  position: relative; z-index: 2;
  text-align: center;
  max-width: 800px;
  padding: 0 var(--gutter);
  animation: fadeInUp 1.2s var(--t-slow) both;
}

.hero h1 {
  margin-bottom: 1.5rem;
}

.hero .lead {
  margin-bottom: 2.5rem;
  max-width: 500px;
  margin-left: auto; margin-right: auto;
}

.hero-actions {
  display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap;
}

/* Hero with image background */
.hero-image .hero-bg {
  background: linear-gradient(180deg, rgba(10,9,8,0.3) 0%, rgba(10,9,8,0.5) 40%, rgba(10,9,8,0.9) 80%, var(--bg-base) 100%);
}

/* ==================== ANIMATIONS ==================== */

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.fade-in { animation: fadeIn 1s var(--t-slow) both; }
.fade-up { animation: fadeInUp 0.8s var(--t-slow) both; }
.fade-delay-1 { animation-delay: 0.15s; }
.fade-delay-2 { animation-delay: 0.3s; }
.fade-delay-3 { animation-delay: 0.45s; }
.fade-delay-4 { animation-delay: 0.6s; }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.8s cubic-bezier(0.16,1,0.3,1), transform 0.8s cubic-bezier(0.16,1,0.3,1); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ==================== PRODUCT GRID ==================== */

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: clamp(20px, 3vw, 40px);
}

.product-card {
  background: transparent;
  text-decoration: none;
  color: inherit;
  transition: transform var(--t-med);
}
.product-card:hover { transform: translateY(-6px); }

.product-image {
  position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
  background: var(--bg-card);
  margin-bottom: 1rem;
}
.product-image img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.8s cubic-bezier(0.16,1,0.3,1);
}
.product-card:hover .product-image img { transform: scale(1.05); }

.product-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(10,9,8,0.8) 0%, transparent 40%);
  display: flex; align-items: flex-end; justify-content: center;
  padding: 1.5rem;
  opacity: 0; transition: opacity var(--t-med);
}
.product-card:hover .product-overlay { opacity: 1; }

.product-badge {
  position: absolute; top: 12px; left: 12px;
  background: var(--accent); color: var(--text-primary);
  padding: 4px 12px;
  font-size: 0.6rem; font-weight: 700; letter-spacing: 0.15em; text-transform: uppercase;
  z-index: 2;
}
.product-badge.gold { background: var(--gold); color: var(--bg-base); }

.product-info { padding: 0 4px; }
.product-name {
  font-family: var(--font-display); font-size: 1.1rem; font-weight: 500;
  margin-bottom: 4px; color: var(--text-primary);
}
.product-category {
  font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-muted); margin-bottom: 8px;
}
.product-price {
  font-family: var(--font-body); font-size: 0.95rem; font-weight: 600;
  color: var(--gold);
}
.product-price s { color: var(--text-muted); font-weight: 400; margin-right: 8px; text-decoration: line-through; }

/* ==================== SECTIONS ==================== */

.section-header {
  text-align: center;
  margin-bottom: clamp(40px, 6vw, 80px);
}
.section-header .eyebrow { margin-bottom: 1.5rem; }
.section-header h2 { margin-bottom: 1rem; }
.section-header p { max-width: 500px; margin: 0 auto; color: var(--text-secondary); }

/* Split section */
.split {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(30px, 5vw, 80px); align-items: center;
}
.split-image {
  aspect-ratio: 4/5; overflow: hidden; background: var(--bg-card);
}
.split-image img { width: 100%; height: 100%; object-fit: cover; }

/* ==================== LOOKBOOK ==================== */

.lookbook-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(12px, 2vw, 24px);
}
.look-item {
  overflow: hidden; position: relative;
  background: var(--bg-card);
}
.look-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.8s var(--t-slow); }
.look-item:hover img { transform: scale(1.04); }

.look-tall { grid-row: span 2; }
.look-wide { grid-column: span 2; }
.look-square { grid-column: span 1; }

.lookbook-meta {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 2rem 1.5rem 1.5rem;
  background: linear-gradient(0deg, rgba(10,9,8,0.9) 0%, transparent 100%);
  opacity: 0; transition: opacity var(--t-med);
}
.look-item:hover .lookbook-meta { opacity: 1; }

/* ==================== FORMS ==================== */

.form-group { margin-bottom: 1.5rem; }
.form-label {
  display: block; font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--text-muted); margin-bottom: 0.5rem;
}
.form-input {
  width: 100%; padding: 14px 18px;
  background: var(--bg-card); border: 1px solid var(--border);
  color: var(--text-primary); font-family: var(--font-body); font-size: 0.95rem;
  border-radius: var(--r-sm); outline: none; transition: border-color var(--t-fast);
}
.form-input:focus { border-color: var(--gold); }
.form-input::placeholder { color: var(--text-muted); }

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

.form-inline {
  display: flex; gap: 0;
  max-width: 500px; margin: 0 auto;
}
.form-inline .form-input {
  flex: 1; border-right: none;
}
.form-inline .btn {
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
}

/* ==================== NEWSLETTER ==================== */

.newsletter {
  text-align: center; padding: clamp(60px, 10vw, 120px) 0;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  background: var(--bg-surface);
}
.newsletter h2 { margin-bottom: 1rem; }
.newsletter p { max-width: 450px; margin: 0 auto 2rem; color: var(--text-secondary); }

/* ==================== FOOTER ==================== */

.site-footer {
  padding: clamp(60px, 8vw, 100px) 0 30px;
  border-top: 1px solid var(--line);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: clamp(30px, 5vw, 60px);
  margin-bottom: 60px;
}
.footer-brand .logo { font-size: 1.8rem; margin-bottom: 1rem; }
.footer-brand p { color: var(--text-muted); font-size: 0.9rem; max-width: 300px; }
.footer-col h4 {
  font-family: var(--font-body); font-size: 0.7rem; font-weight: 700;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 1.5rem;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.75rem; }
.footer-col a { color: var(--text-secondary); font-size: 0.85rem; }
.footer-col a:hover { color: var(--gold); }

.footer-social { display: flex; gap: 1rem; margin-top: 1.5rem; }
.footer-social a {
  width: 36px; height: 36px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--line); color: var(--text-muted);
  transition: all var(--t-fast);
}
.footer-social a:hover { border-color: var(--gold); color: var(--gold); }
.footer-social svg { width: 16px; height: 16px; }

.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 2rem; border-top: 1px solid var(--line);
  font-size: 0.75rem; color: var(--text-muted);
}
.footer-bottom a { color: var(--text-muted); }
.footer-bottom a:hover { color: var(--gold); }

/* ==================== BREADCRUMB ==================== */

.breadcrumb {
  padding: 100px 0 20px;
  font-size: 0.75rem; letter-spacing: 0.1em;
  color: var(--text-muted);
}
.breadcrumb a { color: var(--gold-dim); }
.breadcrumb span { margin: 0 8px; opacity: 0.4; }

/* ==================== FILTERS ==================== */

.filters {
  display: flex; gap: 0.5rem; flex-wrap: wrap;
  margin-bottom: 2rem;
}
.filter-pill {
  padding: 8px 18px;
  font-size: 0.75rem; font-weight: 500; letter-spacing: 0.1em;
  background: transparent; border: 1px solid var(--border);
  color: var(--text-secondary); cursor: pointer;
  border-radius: var(--r-sm); transition: all var(--t-fast);
}
.filter-pill:hover { border-color: var(--line-strong); }
.filter-pill.active { background: var(--gold); color: var(--bg-base); border-color: var(--gold); }

/* ==================== PRODUCT DETAIL ==================== */

.product-detail {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(30px, 5vw, 80px);
  padding-top: 80px;
}
.product-gallery {
  display: flex; flex-direction: column; gap: 1rem;
}
.product-gallery-main {
  aspect-ratio: 3/4; overflow: hidden; background: var(--bg-card);
}
.product-gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.product-thumbs {
  display: flex; gap: 0.75rem;
}
.product-thumb {
  width: 80px; aspect-ratio: 3/4; overflow: hidden;
  border: 1px solid var(--border); cursor: pointer;
  transition: border-color var(--t-fast);
}
.product-thumb.active { border-color: var(--gold); }
.product-thumb img { width: 100%; height: 100%; object-fit: cover; }

.product-info-detail h1 { margin-bottom: 0.5rem; }
.product-info-detail .product-price { font-size: 1.5rem; margin-bottom: 1.5rem; }
.product-info-detail .product-description { color: var(--text-secondary); margin-bottom: 2rem; line-height: 1.8; }

.size-selector {
  display: flex; gap: 0.5rem; margin-bottom: 2rem;
}
.size-btn {
  min-width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); background: transparent;
  color: var(--text-secondary); cursor: pointer;
  font-family: var(--font-body); font-size: 0.8rem; font-weight: 500;
  transition: all var(--t-fast);
}
.size-btn:hover { border-color: var(--line-strong); }
.size-btn.active { border-color: var(--gold); color: var(--gold); }
.size-btn:disabled { opacity: 0.3; cursor: not-allowed; }

.product-actions { display: flex; gap: 1rem; margin-bottom: 2rem; }
.qty-selector {
  display: flex; align-items: center;
  border: 1px solid var(--border);
}
.qty-selector button {
  width: 44px; height: 50px; background: transparent; border: none;
  color: var(--text-secondary); cursor: pointer; font-size: 1.2rem;
}
.qty-selector input {
  width: 50px; height: 50px; text-align: center;
  background: transparent; border: none; border-left: 1px solid var(--border);
  border-right: 1px solid var(--border); color: var(--text-primary);
  font-family: var(--font-body); font-size: 0.9rem;
}

.product-details-list {
  border-top: 1px solid var(--line);
  padding-top: 2rem; margin-top: 2rem;
}
.product-details-list dt {
  font-size: 0.7rem; font-weight: 600; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--text-muted);
  margin-bottom: 0.4rem; margin-top: 1rem;
}
.product-details-list dd { color: var(--text-secondary); font-size: 0.9rem; }
.product-details-list dt:first-child { margin-top: 0; }

/* ==================== UTILITY ==================== */

.divider {
  width: 60px; height: 1px; background: var(--gold);
  margin: 2rem auto;
}

.tag {
  display: inline-block;
  font-family: var(--font-mono); font-size: 0.65rem;
  padding: 3px 10px; border: 1px solid var(--line);
  border-radius: var(--r-sm); color: var(--gold-dim);
  letter-spacing: 0.1em; text-transform: uppercase;
}

.affiliate-disclosure {
  font-size: 0.7rem; color: var(--text-muted); margin-top: 1rem;
  text-align: center; opacity: 0.6;
}

/* ==================== RESPONSIVE ==================== */

@media (max-width: 960px) {
  .split { grid-template-columns: 1fr; }
  .product-detail { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: span 2; }
}

@media (max-width: 720px) {
  .nav { display: none; }
  .menu-toggle { display: flex; }
  .nav.mobile-open {
    display: flex; flex-direction: column;
    position: absolute; top: 70px; left: var(--gutter); right: var(--gutter);
    background: var(--bg-surface); padding: 1.5rem;
    border: 1px solid var(--line); border-radius: var(--r-md);
    gap: 1rem; z-index: 999;
  }
  .nav.mobile-open a { padding: 0.5rem 0; }
  .nav.mobile-open a::after { display: none; }

  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand { grid-column: span 1; }
  .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }

  .lookbook-grid { grid-template-columns: repeat(6, 1fr); }
  .look-wide { grid-column: span 6; }
  .look-tall { grid-row: span 1; }

  .product-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .hero { min-height: 90vh; }
}

@media (max-width: 480px) {
  .product-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
}

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