/* ==========================================================================
   Avenue 18K — feuille de style principale
   ========================================================================== */

:root {
  --gold: #b8923f;
  --gold-dark: #8a6a2b;
  --gold-light: #e9d9b0;
  --black: #1a1613;
  --bg: #faf7f2;
  --bg-alt: #f1ece2;
  --white: #ffffff;
  --text: #2b2620;
  --muted: #74695a;
  --danger: #b4453a;
  --radius: 2px;
  --shadow: 0 10px 30px rgba(26, 22, 19, 0.08);
  --font-serif: "Playfair Display", Georgia, serif;
  --font-sans: "Jost", "Helvetica Neue", Arial, sans-serif;
  --header-h: 128px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: 1rem; }

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--black);
  margin: 0 0 .5em;
  letter-spacing: .01em;
}

.eyebrow {
  display: block;
  font-size: .75rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold-dark);
  margin-bottom: .6em;
  font-weight: 600;
}

.section {
  padding: 72px 0;
}
.section-alt { background: var(--bg-alt); }

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 44px;
}
.section-head p { color: var(--muted); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 30px;
  border: 1px solid var(--black);
  background: var(--black);
  color: var(--white);
  font-size: .82rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: all .25s ease;
  white-space: nowrap;
}
.btn:hover { background: var(--gold-dark); border-color: var(--gold-dark); }

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

.btn-gold {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--white);
}
.btn-gold:hover { background: var(--gold-dark); border-color: var(--gold-dark); }

.btn-block { width: 100%; }
.btn[disabled] { opacity: .45; cursor: not-allowed; }

/* ============ TOPBAR ============ */
.topbar {
  background: var(--black);
  color: var(--gold-light);
  font-size: .74rem;
  letter-spacing: .04em;
}
.topbar .container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  padding-top: 9px;
  padding-bottom: 9px;
  overflow-x: auto;
  white-space: nowrap;
}
.topbar span { display: inline-flex; align-items: center; gap: 6px; }

/* ============ HEADER ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 247, 242, .96);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--bg-alt);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0;
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--black);
  text-align: center;
  line-height: 1.1;
}
.logo small {
  display: block;
  font-family: var(--font-sans);
  font-size: .58rem;
  letter-spacing: .32em;
  color: var(--gold-dark);
  font-weight: 500;
  margin-top: 2px;
}

.main-nav {
  display: flex;
  gap: 30px;
}
.main-nav a {
  font-size: .82rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--text);
  padding: 6px 0;
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, color .2s ease;
}
.main-nav a:hover,
.main-nav a.active {
  color: var(--gold-dark);
  border-color: var(--gold-dark);
}

.header-icons {
  display: flex;
  align-items: center;
  gap: 20px;
}
.icon-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  color: var(--black);
}
.icon-btn svg { width: 22px; height: 22px; stroke: currentColor; fill: none; }
.cart-count {
  position: absolute;
  top: -8px;
  right: -10px;
  background: var(--gold);
  color: var(--white);
  font-size: .64rem;
  font-weight: 600;
  min-width: 17px;
  height: 17px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 3px;
}

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 6px;
}
.burger span { width: 24px; height: 1.5px; background: var(--black); }

.mobile-nav {
  display: none;
  flex-direction: column;
  border-top: 1px solid var(--bg-alt);
  background: var(--bg);
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  padding: 14px 24px;
  border-bottom: 1px solid var(--bg-alt);
  font-size: .85rem;
  letter-spacing: .06em;
  text-transform: uppercase;
}

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: 78vh;
  display: flex;
  align-items: center;
  background: linear-gradient(120deg, #2a231b, #453a29 55%, #6b562f);
  color: var(--white);
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: url('https://images.unsplash.com/photo-1611591437281-460bfbe1220a?auto=format&fit=crop&w=1600&q=70') center/cover;
  opacity: .38;
  mix-blend-mode: luminosity;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 620px;
  padding: 0 24px;
  margin: 0 auto;
  text-align: center;
}
.hero .eyebrow { color: var(--gold-light); }
.hero h1 {
  color: var(--white);
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1.15;
  margin-bottom: .4em;
}
.hero p {
  color: #ece3d0;
  max-width: 480px;
  margin: 0 auto 2em;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-actions .btn-outline { border-color: var(--white); color: var(--white); }
.hero-actions .btn-outline:hover { background: var(--white); color: var(--black); }

/* ============ TRUST BAR ============ */
.trust-bar {
  background: var(--black);
  color: var(--gold-light);
}
.trust-bar .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding: 28px 24px;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: .78rem;
  letter-spacing: .03em;
}
.trust-item svg { width: 26px; height: 26px; flex-shrink: 0; stroke: var(--gold); fill: none; }

/* ============ CATEGORIES ============ */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.category-card {
  position: relative;
  aspect-ratio: 3/4;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-alt) center/cover;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  text-align: center;
  box-shadow: var(--shadow);
}
.category-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.category-card:hover img { transform: scale(1.06); }
.category-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(20,16,10,.72), rgba(20,16,10,0) 55%);
  z-index: 1;
}
.category-card span {
  position: relative;
  z-index: 2;
  color: var(--white);
  font-family: var(--font-serif);
  font-size: 1.15rem;
  padding: 22px 10px;
  letter-spacing: .02em;
}

/* ============ PRODUCT GRID / CARD ============ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px 22px;
}
.product-card {
  background: var(--white);
  border: 1px solid var(--bg-alt);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow .25s ease, transform .25s ease;
}
.product-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }

.product-thumb {
  position: relative;
  aspect-ratio: 1/1;
  background: var(--bg-alt);
  overflow: hidden;
}
.product-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.product-card:hover .product-thumb img { transform: scale(1.07); }
.product-thumb.img-fallback img,
img.img-fallback { object-fit: contain; background: var(--bg-alt); padding: 14%; }

.product-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 2;
  background: var(--black);
  color: var(--gold-light);
  font-size: .64rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 5px 9px;
}
.product-badge.promo { background: var(--danger); color: var(--white); }
.product-badge.nouveau { background: var(--gold); color: var(--white); }

.quick-add {
  position: absolute;
  right: 10px;
  bottom: 10px;
  z-index: 2;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--white);
  border: 1px solid var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity .2s ease, transform .2s ease;
}
.product-card:hover .quick-add { opacity: 1; transform: translateY(0); }
.quick-add svg { width: 18px; height: 18px; stroke: var(--black); fill: none; }

.product-info { padding: 16px 16px 18px; flex: 1; display: flex; flex-direction: column; }
.product-cat {
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--muted);
  margin-bottom: 4px;
}
.product-name {
  font-family: var(--font-serif);
  font-size: 1.02rem;
  margin-bottom: 6px;
  color: var(--black);
}
.product-name a:hover { color: var(--gold-dark); }
.product-meta { font-size: .74rem; color: var(--muted); margin-bottom: 10px; }
.product-price {
  margin-top: auto;
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-weight: 600;
  color: var(--black);
}
.product-price .old { font-weight: 400; color: var(--muted); text-decoration: line-through; font-size: .84rem; }
.product-price .now.promo { color: var(--danger); }

/* ============ WHY 18K ============ */
.why-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: center;
}
.why-grid img { border-radius: var(--radius); box-shadow: var(--shadow); }
.purity-table { width: 100%; border-collapse: collapse; margin-top: 20px; font-size: .88rem; }
.purity-table th, .purity-table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--bg-alt);
}
.purity-table th { color: var(--muted); font-weight: 500; text-transform: uppercase; font-size: .68rem; letter-spacing: .08em; }
.purity-table tr.highlight td { background: var(--gold-light); font-weight: 600; }

/* ============ TESTIMONIALS ============ */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial {
  background: var(--white);
  padding: 30px 26px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.stars { color: var(--gold); letter-spacing: 2px; margin-bottom: 12px; }
.testimonial p { color: var(--text); font-style: italic; }
.testimonial .author { margin-top: 16px; font-size: .8rem; color: var(--muted); font-style: normal; }

/* ============ INSTAGRAM STRIP ============ */
.insta-strip {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 4px;
}
.insta-strip a { aspect-ratio: 1/1; overflow: hidden; position: relative; }
.insta-strip img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.insta-strip a:hover img { transform: scale(1.08); }

/* ============ NEWSLETTER ============ */
.newsletter {
  background: var(--black);
  color: var(--white);
  text-align: center;
}
.newsletter h2 { color: var(--white); }
.newsletter p { color: var(--gold-light); max-width: 480px; margin: 0 auto 26px; }
.newsletter-form {
  display: flex;
  max-width: 460px;
  margin: 0 auto;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}
.newsletter-form input {
  flex: 1;
  min-width: 220px;
  padding: 14px 16px;
  border: 1px solid rgba(255,255,255,.3);
  background: transparent;
  color: var(--white);
  border-radius: var(--radius);
}
.newsletter-form input::placeholder { color: #cfc4a9; }
.form-msg { margin-top: 14px; font-size: .82rem; color: var(--gold-light); }

/* ============ FOOTER ============ */
.site-footer {
  background: #14100c;
  color: #c9beac;
  font-size: .86rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding: 64px 0 32px;
}
.footer-grid h4 {
  color: var(--gold-light);
  font-family: var(--font-sans);
  text-transform: uppercase;
  font-size: .74rem;
  letter-spacing: .12em;
  margin-bottom: 18px;
}
.footer-grid li { margin-bottom: 10px; }
.footer-grid a:hover { color: var(--white); }
.footer-brand .logo { color: var(--white); text-align: left; }
.footer-brand p { max-width: 280px; margin: 16px 0 20px; color: #a89c86; }
.footer-social { display: flex; gap: 14px; }
.footer-social a {
  width: 36px; height: 36px; border: 1px solid #3a3226;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
}
.footer-social svg { width: 16px; height: 16px; stroke: currentColor; fill: none; }
.payment-icons { display: flex; gap: 10px; margin-top: 14px; flex-wrap: wrap; }
.payment-icons span {
  font-size: .68rem; border: 1px solid #3a3226; padding: 5px 9px; border-radius: 3px; color: #a89c86;
}
.footer-bottom {
  border-top: 1px solid #2a2318;
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: .76rem;
  color: #8a7f6b;
}
.footer-bottom a:hover { color: var(--white); }

/* ============ BREADCRUMB ============ */
.breadcrumb {
  padding: 18px 0;
  font-size: .78rem;
  color: var(--muted);
  letter-spacing: .02em;
}
.breadcrumb a:hover { color: var(--gold-dark); }

/* ============ PAGE HEADER (boutique) ============ */
.page-banner {
  padding: 46px 0 30px;
  text-align: center;
  background: var(--bg-alt);
}

/* ============ SHOP LAYOUT ============ */
.shop-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 40px;
  align-items: start;
}
.filters {
  position: sticky;
  top: calc(var(--header-h) + 20px);
  background: var(--white);
  border: 1px solid var(--bg-alt);
  padding: 22px;
  border-radius: var(--radius);
}
.filters h4 {
  font-family: var(--font-sans);
  font-size: .74rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--muted);
  margin: 22px 0 12px;
}
.filters h4:first-child { margin-top: 0; }
.filter-option {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .86rem;
  padding: 6px 0;
  cursor: pointer;
}
.filter-option input { accent-color: var(--gold-dark); }
.filters .btn { margin-top: 18px; }

.shop-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}
.shop-toolbar select {
  padding: 10px 14px;
  border: 1px solid var(--bg-alt);
  background: var(--white);
  border-radius: var(--radius);
}
.results-count { font-size: .84rem; color: var(--muted); }
.empty-state { text-align: center; padding: 60px 20px; color: var(--muted); }

/* ============ PRODUCT DETAIL ============ */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}
.product-gallery { display: flex; flex-direction: column; gap: 12px; }
.product-gallery-main {
  aspect-ratio: 1/1;
  background: var(--bg-alt);
  border-radius: var(--radius);
  overflow: hidden;
}
.product-gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.product-gallery-thumbs { display: flex; gap: 10px; }
.product-gallery-thumbs img {
  width: 76px;
  height: 76px;
  object-fit: cover;
  border-radius: var(--radius);
  cursor: pointer;
  border: 2px solid transparent;
  opacity: .6;
  transition: opacity .2s ease, border-color .2s ease;
  background: var(--bg-alt);
}
.product-gallery-thumbs img:hover { opacity: .85; }
.product-gallery-thumbs img.active { opacity: 1; border-color: var(--gold); }
.product-detail-info .eyebrow { margin-bottom: 8px; }
.pd-price { font-size: 1.7rem; font-weight: 600; margin: 14px 0; display: flex; align-items: baseline; gap: 12px; }
.pd-price .old { font-size: 1.1rem; font-weight: 400; color: var(--muted); text-decoration: line-through; }
.pd-desc { color: var(--muted); margin-bottom: 22px; }
.pd-specs { width: 100%; border-collapse: collapse; margin-bottom: 26px; }
.pd-specs td { padding: 8px 0; border-bottom: 1px solid var(--bg-alt); font-size: .88rem; }
.pd-specs td:first-child { color: var(--muted); width: 40%; }

.qty-stepper {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--bg-alt);
  border-radius: var(--radius);
}
.qty-stepper button {
  width: 40px; height: 44px; background: none; border: none; font-size: 1.1rem;
}
.qty-stepper input {
  width: 44px; text-align: center; border: none; border-left: 1px solid var(--bg-alt);
  border-right: 1px solid var(--bg-alt); height: 44px;
}
.pd-actions { display: flex; gap: 14px; align-items: center; margin: 22px 0; flex-wrap: wrap; }

.accordion-item { border-bottom: 1px solid var(--bg-alt); }
.accordion-trigger {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: none;
  border: none;
  padding: 16px 0;
  font-size: .9rem;
  font-weight: 500;
  text-align: left;
}
.accordion-trigger .plus { transition: transform .2s ease; font-size: 1.2rem; color: var(--gold-dark); }
.accordion-item.open .plus { transform: rotate(45deg); }
.accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height .25s ease;
  color: var(--muted);
  font-size: .88rem;
}
.accordion-item.open .accordion-panel { padding-bottom: 16px; }

.related-title { margin-top: 80px; }

/* ============ CART PAGE ============ */
.cart-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 40px;
  align-items: start;
}
.cart-table { width: 100%; border-collapse: collapse; }
.cart-table th {
  text-align: left;
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--muted);
  padding-bottom: 14px;
  border-bottom: 1px solid var(--bg-alt);
}
.cart-table td {
  padding: 18px 10px;
  border-bottom: 1px solid var(--bg-alt);
  vertical-align: middle;
}
.cart-row-product { display: flex; gap: 14px; align-items: center; }
.cart-row-product img { width: 74px; height: 74px; object-fit: cover; border-radius: var(--radius); background: var(--bg-alt); }
.cart-row-name { font-family: var(--font-serif); font-size: 1rem; }
.cart-remove { color: var(--danger); font-size: .78rem; margin-top: 6px; display: inline-block; }

.cart-summary {
  background: var(--bg-alt);
  padding: 28px;
  border-radius: var(--radius);
  position: sticky;
  top: calc(var(--header-h) + 20px);
}
.summary-row { display: flex; justify-content: space-between; margin-bottom: 12px; font-size: .92rem; }
.summary-row.total { font-weight: 700; font-size: 1.1rem; border-top: 1px solid #ddd2b8; padding-top: 14px; margin-top: 14px; }
.progress-track { height: 6px; background: #e6ddc7; border-radius: 4px; overflow: hidden; margin: 14px 0 8px; }
.progress-fill { height: 100%; background: var(--gold); transition: width .3s ease; }
.progress-note { font-size: .78rem; color: var(--muted); margin-bottom: 18px; }

/* ============ CONTACT / FAQ ============ */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}
.contact-form .field { margin-bottom: 18px; }
.contact-form label { display: block; font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin-bottom: 6px; }
.contact-form input, .contact-form select, .contact-form textarea {
  width: 100%;
  padding: 13px 14px;
  border: 1px solid var(--bg-alt);
  border-radius: var(--radius);
  background: var(--white);
}
.contact-form textarea { resize: vertical; min-height: 130px; }
.contact-info-block { margin-bottom: 30px; }
.contact-info-block h3 { margin-bottom: 8px; }
.contact-info-block p { color: var(--muted); }

/* ============ EMPTY / MISC ============ */
.text-center { text-align: center; }
.mt-40 { margin-top: 40px; }

/* ============ RESPONSIVE ============ */
@media (max-width: 980px) {
  .main-nav { display: none; }
  .burger { display: flex; }
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid, .product-detail, .cart-layout, .contact-layout { grid-template-columns: 1fr; gap: 32px; }
  .shop-layout { grid-template-columns: 1fr; }
  .filters { position: static; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .insta-strip { grid-template-columns: repeat(3, 1fr); }
  .trust-bar .container { grid-template-columns: repeat(2, 1fr); }
  .cart-summary { position: static; }
}
@media (max-width: 560px) {
  .products-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .section { padding: 48px 0; }
  .footer-grid { grid-template-columns: 1fr; padding: 48px 0 24px; }
  .hero { min-height: 92vh; }
  .topbar .container { gap: 20px; justify-content: flex-start; }
  .cart-row-product img { width: 56px; height: 56px; }
}