/* ── Shared button styles (used on landing + catalog) ── */
.btn-primary {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--black);
  background: var(--gold);
  padding: 0.9rem 2.5rem;
  border: 1px solid var(--gold);
  transition: background 0.3s, color 0.3s;
  cursor: pointer;
}

.btn-primary:hover {
  background: var(--gold-light);
  border-color: var(--gold-light);
}

.btn-secondary {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--cream);
  background: transparent;
  padding: 0.9rem 2rem;
  border: 1px solid rgba(201,168,76,0.4);
  transition: border-color 0.3s, color 0.3s;
}

.btn-secondary:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.btn-ghost {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text-muted);
  padding: 0.9rem 1.5rem;
  transition: color 0.3s;
}

.btn-ghost:hover {
  color: var(--cream);
}

.btn-outline {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--gold);
  padding: 0.6rem 1.25rem;
  border: 1px solid rgba(201,168,76,0.3);
  margin-top: 1.25rem;
  transition: border-color 0.3s, color 0.3s;
}

.btn-outline:hover {
  border-color: var(--gold);
}

/* ── Hero CTA ── */
.hero-cta {
  margin-top: 2.5rem;
}

/* ── Site navigation ── */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 3rem;
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(201,168,76,0.1);
}

.nav-brand {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--cream);
  text-decoration: none;
}

.nav-brand:hover {
  color: var(--gold);
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-link {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.3s;
}

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

/* ── Catalog page hero ── */
.catalog-page {
  min-height: calc(100vh - 60px);
  padding-bottom: 6rem;
}

.catalog-hero {
  text-align: center;
  padding: 5rem 2rem 3rem;
  background: linear-gradient(170deg, #0a0a0a 0%, #141210 60%, #0a0a0a 100%);
}

.catalog-hero h1 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: 1.1;
  color: var(--cream);
  letter-spacing: -0.02em;
  margin: 1.5rem 0 1rem;
}

.catalog-hero h1 em {
  font-style: italic;
  color: var(--gold);
}

.catalog-sub {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 300;
}

/* ── Filter bar ── */
.filter-bar {
  position: sticky;
  top: 60px;
  z-index: 90;
  background: rgba(10,10,10,0.95);
  border-bottom: 1px solid rgba(201,168,76,0.08);
  backdrop-filter: blur(6px);
}

.filter-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  gap: 0;
}

.filter-btn {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text-muted);
  padding: 1.1rem 1.5rem;
  border-bottom: 2px solid transparent;
  transition: color 0.3s, border-color 0.3s;
}

.filter-btn:hover {
  color: var(--cream);
}

.filter-btn--active {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* ── Catalog grid ── */
.catalog-grid-wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 4rem 2rem 0;
}

.catalog-empty {
  text-align: center;
  color: var(--text-muted);
  font-size: 1rem;
  padding: 4rem 0;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
}

.catalog-card {
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(201,168,76,0.12);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.4s, transform 0.3s;
}

.catalog-card:hover {
  border-color: rgba(201,168,76,0.35);
  transform: translateY(-2px);
}

.catalog-card__visual {
  aspect-ratio: 4/3;
  overflow: hidden;
  position: relative;
}

.catalog-card__visual .swatch {
  width: 100%;
  height: 100%;
  position: relative;
}

.catalog-card__info {
  padding: 2rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.catalog-card__name {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  color: var(--cream);
  margin-bottom: 0.75rem;
  line-height: 1.2;
}

.catalog-card__desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  flex: 1;
  margin-bottom: 1.25rem;
}

.catalog-card__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}

.catalog-card__cta {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  opacity: 0;
  transition: opacity 0.3s;
}

.catalog-card:hover .catalog-card__cta {
  opacity: 1;
}

/* ── Product detail page ── */
.product-page {
  padding: 3rem 2rem 6rem;
}

.product-page__inner {
  max-width: 1100px;
  margin: 0 auto;
}

.back-link {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  margin-bottom: 3rem;
  transition: color 0.3s;
}

.back-link:hover {
  color: var(--gold);
}

.product-page__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.product-page__visual {
  position: sticky;
  top: 100px;
}

.product-visual--large {
  aspect-ratio: 1/1;
}

.product-page__name {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.8rem, 4vw, 3rem);
  color: var(--cream);
  line-height: 1.15;
  margin: 1rem 0 1.25rem;
}

.product-page__price {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 400;
  color: var(--gold);
  margin-bottom: 2rem;
}

.product-page__price span {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 300;
  color: var(--text-muted);
  margin-left: 0.25rem;
}

.product-page__desc {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 2rem;
  max-width: 480px;
}

.product-details-block {
  border-top: 1px solid rgba(201,168,76,0.1);
  padding-top: 2rem;
  margin-bottom: 2.5rem;
}

.product-details-block h3 {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
}

.product-details-block p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.8;
}

.product-page__actions {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
  padding-top: 1rem;
}

/* ── 404 page ── */
.notfound-page {
  min-height: 80vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 1.5rem;
  padding: 4rem 2rem;
}

.notfound-page h1 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.5rem, 6vw, 5rem);
  color: var(--cream);
  line-height: 1.1;
}

.notfound-page h1 em {
  font-style: italic;
  color: var(--gold);
}

.notfound-page p {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 360px;
  line-height: 1.7;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .site-nav {
    padding: 1rem 1.5rem;
  }

  .filter-inner {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .filter-inner::-webkit-scrollbar { display: none; }

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

  .product-page__grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .product-page__visual {
    position: static;
  }
}