/* ============================================================
   COLLECTION GATEWAY — Full-width editorial chapter sections
   ============================================================ */

/* Hero */
.collection-hero {
  position: relative;
  height: 70vh;
  min-height: 500px;
  display: flex;
  align-items: flex-end;
  padding-bottom: 5rem;
  overflow: hidden;
}
.collection-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center 30%;
  transform: scale(1.05);
  transition: transform 8s ease;
}
.collection-hero:hover .collection-hero-bg { transform: scale(1); }
.collection-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(44,44,44,0.2) 0%, rgba(44,44,44,0.65) 100%);
}
.collection-hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  text-align: center;
  color: var(--ivory);
  padding: 0 2rem;
}
.collection-hero-overline {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
}
.collection-hero-title {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 7vw, 6rem);
  font-weight: 300;
  color: var(--ivory);
  margin: 0 0 1.2rem;
  line-height: 1;
}
.collection-hero-sub {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 300;
  font-style: italic;
  color: rgba(245,240,235,0.85);
  line-height: 1.7;
}

/* Diamond Origin Bar */
.diamond-origin-bar {
  background: var(--ivory);
  border-bottom: 1px solid var(--stone);
  padding: 1.5rem 2rem;
}
.diamond-origin-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}
.diamond-origin-label {
  font-family: var(--font-sans);
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--taupe);
}
.diamond-origin-toggle {
  display: flex;
  gap: 0;
  border: 1px solid var(--stone);
}
.origin-btn {
  background: transparent;
  border: none;
  padding: 0.8rem 2rem;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  transition: all 0.3s ease;
  min-width: 160px;
}
.origin-btn-title {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--taupe);
  transition: color 0.3s;
}
.origin-btn-sub {
  font-family: var(--font-serif);
  font-size: 0.75rem;
  font-style: italic;
  color: var(--taupe);
  opacity: 0.7;
  transition: color 0.3s;
}
.origin-btn.active {
  background: var(--olive);
}
.origin-btn.active .origin-btn-title {
  color: var(--ivory);
}
.origin-btn.active .origin-btn-sub {
  color: rgba(245,240,235,0.8);
  opacity: 1;
}
.origin-btn:not(.active):hover {
  background: var(--stone);
}
.diamond-origin-note {
  font-family: var(--font-serif);
  font-size: 0.8rem;
  font-style: italic;
  color: var(--taupe);
  opacity: 0.7;
}

/* Gold Rate Bar */
.gold-rate-bar {
  background: var(--olive);
  padding: 0.9rem 2rem;
}
.gold-rate-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.gold-rate-label {
  font-family: var(--font-sans);
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: rgba(245,240,235,0.7);
}
.gold-rate-value {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--ivory);
  font-style: italic;
}
.gold-rate-note {
  font-family: var(--font-sans);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(245,240,235,0.6);
}

/* Editorial Chapter Sections */
.chapter-section {
  display: block;
}
.chapter-editorial-link {
  display: block;
  text-decoration: none;
  color: inherit;
}
.chapter-editorial {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 75vh;
}
.chapter-editorial--reverse {
  direction: rtl;
}
.chapter-editorial--reverse > * {
  direction: ltr;
}
.chapter-editorial-image-wrap {
  position: relative;
  overflow: hidden;
}
.chapter-editorial-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
  transition: transform 0.8s ease;
}
.chapter-editorial-link:hover .chapter-editorial-image {
  transform: scale(1.04);
}
.chapter-editorial-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(44,44,44,0.15), transparent);
  pointer-events: none;
}
.chapter-editorial-overlay--dark {
  background: linear-gradient(to right, rgba(10,10,10,0.5), rgba(10,10,10,0.3));
}
.chapter-editorial-content {
  background: var(--ivory);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 5rem 6rem;
  position: relative;
}
.chapter-editorial-content--light {
  background: #0e0e0e;
}
.chapter-editorial-number {
  font-family: var(--font-sans);
  font-size: 0.6rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.2rem;
}
.chapter-editorial-name {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 4vw, 4rem);
  font-weight: 300;
  color: var(--charcoal);
  margin: 0 0 0.5rem;
  line-height: 1;
}
.chapter-editorial-content--light .chapter-editorial-name {
  color: var(--ivory);
}
.chapter-editorial-arabic {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-style: italic;
  color: var(--gold);
  margin-bottom: 0.3rem;
}
.chapter-editorial-tagline {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--taupe);
  margin-bottom: 2rem;
}
.chapter-editorial-content--light .chapter-editorial-tagline {
  color: rgba(245,240,235,0.5);
}
.chapter-editorial-desc {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 300;
  line-height: 1.9;
  color: var(--taupe);
  max-width: 400px;
  margin-bottom: 2.5rem;
}
.chapter-editorial-content--light .chapter-editorial-desc {
  color: rgba(245,240,235,0.7);
}
.chapter-editorial-cta {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--charcoal);
  border-bottom: 1px solid var(--gold);
  padding-bottom: 0.3rem;
  display: inline-block;
  transition: color 0.3s, border-color 0.3s;
}
.chapter-editorial-link:hover .chapter-editorial-cta {
  color: var(--gold);
}
.chapter-editorial-cta--light {
  color: var(--ivory);
  border-bottom-color: var(--gold);
}
.chapter-editorial-link:hover .chapter-editorial-cta--light {
  color: var(--gold);
}
.chapter-coming-soon-pill {
  display: inline-block;
  margin-top: 1.5rem;
  padding: 0.4rem 1.2rem;
  border: 1px solid rgba(245,240,235,0.3);
  font-family: var(--font-sans);
  font-size: 0.55rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: rgba(245,240,235,0.6);
}

/* Trust Section */
.trust-section {
  background: var(--stone);
  padding: 5rem 0;
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 3rem;
  text-align: center;
}
.trust-icon {
  font-size: 1rem;
  color: var(--gold);
  margin-bottom: 1rem;
}
.trust-item h4 {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--charcoal);
  margin-bottom: 0.8rem;
}
.trust-item p {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-style: italic;
  color: var(--taupe);
  line-height: 1.7;
}

/* Bespoke CTA Section */
.bespoke-cta-section {
  background: var(--ivory);
  padding: 7rem 0;
  text-align: center;
}
.bespoke-cta-inner {
  max-width: 650px;
  margin: 0 auto;
}
.bespoke-cta-inner h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 300;
  color: var(--charcoal);
  margin: 1rem 0 1.5rem;
}
.bespoke-cta-inner p {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-style: italic;
  color: var(--taupe);
  line-height: 1.9;
  margin-bottom: 2.5rem;
}
.bespoke-cta-actions {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-block;
  padding: 1rem 2.5rem;
  background: var(--charcoal);
  color: var(--ivory);
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  text-decoration: none;
  transition: background 0.3s, color 0.3s;
}
.btn-primary:hover {
  background: var(--gold);
  color: var(--ivory);
}
.btn-secondary {
  display: inline-block;
  padding: 1rem 2.5rem;
  border: 1px solid var(--charcoal);
  color: var(--charcoal);
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  text-decoration: none;
  transition: all 0.3s;
}
.btn-secondary:hover {
  background: var(--charcoal);
  color: var(--ivory);
}

/* Responsive */
@media (max-width: 1024px) {
  .chapter-editorial {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  .chapter-editorial-image-wrap {
    height: 55vw;
    min-height: 320px;
  }
  .chapter-editorial--reverse {
    direction: ltr;
  }
  .chapter-editorial-content {
    padding: 4rem 3rem;
  }
  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 640px) {
  .collection-hero { height: 60vh; }
  .diamond-origin-inner { gap: 1rem; }
  .origin-btn { min-width: 130px; padding: 0.7rem 1rem; }
  .diamond-origin-note { display: none; }
  .gold-rate-note { display: none; }
  .chapter-editorial-content { padding: 3rem 2rem; }
  .trust-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .bespoke-cta-actions { flex-direction: column; align-items: center; }
}