/* =========================================================
   PRODUCT PAGE — Luxe Dark + Gold
   ========================================================= */

/* =========================================================
   PRODUCT HERO — Compact editorial banner
   ========================================================= */

.product-hero {
  position: relative;
  padding: 170px 0 90px;
  background: var(--bg-base);
  overflow: hidden;
  isolation: isolate;
  border-bottom: 1px solid var(--hair);
}

.product-hero::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-hair) 50%, transparent);
  z-index: 2;
}

.product-hero::after {
  content: '';
  position: absolute;
  bottom: -200px;
  right: -10%;
  width: 540px;
  height: 540px;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.10) 0%, transparent 60%);
  filter: blur(80px);
  z-index: 0;
  pointer-events: none;
}

.product-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.product-hero-bg-img {
  position: absolute;
  top: 0;
  right: 0;
  width: 60%;
  height: 100%;
  object-fit: cover;
  opacity: 0.18;
  filter: grayscale(0.35) contrast(1.15) brightness(0.85);
  mask-image: linear-gradient(90deg, transparent 0%, rgba(0,0,0,0.4) 30%, black 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, rgba(0,0,0,0.4) 30%, black 100%);
}

.product-hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(80% 60% at 0% 100%, rgba(212, 175, 55, 0.06) 0%, transparent 50%),
    linear-gradient(90deg, var(--bg-base) 30%, rgba(7,9,15,0.6) 70%, rgba(7,9,15,0.85) 100%);
  z-index: 0;
  pointer-events: none;
}

.product-hero-content {
  position: relative;
  z-index: 1;
  max-width: 880px;
}

.product-breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.68rem;
  margin-bottom: 56px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.product-breadcrumb a {
  color: var(--text-dim);
  text-decoration: none;
  transition: color var(--t-fast);
  font-weight: 500;
}

.product-breadcrumb a:hover { color: var(--gold); }

.product-breadcrumb span {
  color: var(--text-faint);
  font-weight: 400;
}

.product-breadcrumb span:last-child {
  color: var(--gold);
  font-weight: 500;
}

/* Meta row: "Product Line · 01 / 06" */
.product-hero-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--hair);
  position: relative;
}

.product-hero-meta::before {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 56px;
  height: 1px;
  background: var(--gold);
}

.product-hero-tag {
  font-size: 0.66rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.32em;
  color: var(--gold);
}

.product-hero-index {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-size: 1.05rem;
  color: var(--text-dim);
  letter-spacing: 0.02em;
  margin-left: auto;
}

.product-hero-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2.4rem, 5.4vw, 4.6rem);
  font-weight: 400;
  color: var(--text-bright);
  margin-bottom: 28px;
  letter-spacing: -0.01em;
  line-height: 1.05;
}

.product-hero-title em {
  font-style: italic;
  color: var(--gold);
  font-weight: 300;
  display: inline-block;
}

.product-hero-lede {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-size: clamp(1.1rem, 1.6vw, 1.4rem);
  color: var(--text-muted);
  line-height: 1.6;
  font-weight: 300;
  max-width: 720px;
  letter-spacing: 0.005em;
}

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

.product-detail {
  padding: 120px 0;
  background: var(--bg-base);
  border-top: 1px solid var(--hair);
  position: relative;
}

.product-detail::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-hair) 50%, transparent);
}

.product-detail-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 100px;
  align-items: start;
}

.product-detail-content h2 {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 400;
  color: var(--text-bright);
  margin-bottom: 28px;
  letter-spacing: -0.01em;
  line-height: 1.15;
}
.product-detail-content h2 em { font-style: italic; color: var(--gold); font-weight: 300; }

.product-detail-content > p {
  font-size: 1.02rem;
  color: var(--text-muted);
  line-height: 1.9;
  margin-bottom: 22px;
  font-weight: 300;
}

.product-features {
  margin-top: 64px;
  padding-top: 56px;
  border-top: 1px solid var(--hair);
  position: relative;
}

.product-features::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 0;
  width: 80px;
  height: 1px;
  background: var(--gold);
}

.product-features h3 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--gold);
  margin-bottom: 36px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px 32px;
}

.feature-item {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 4px 0;
}

.feature-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border: 1px solid var(--gold-hair);
  background: var(--gold-softer);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--t);
}

.feature-item:hover .feature-icon {
  border-color: var(--gold);
  background: var(--gold-soft);
  box-shadow: var(--glow-gold-sm);
}

.feature-icon svg {
  width: 18px;
  height: 18px;
  color: var(--gold);
}

.feature-item strong {
  display: block;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 6px;
  letter-spacing: 0.01em;
}

.feature-item span {
  display: block;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.75;
  font-weight: 300;
}

/* =========================================================
   SIDEBAR
   ========================================================= */

.product-detail-image {
  position: relative;
  border-radius: 2px;
  overflow: hidden;
  isolation: isolate;
  aspect-ratio: 4 / 5;
  background: var(--bg-elev);
}

.product-detail-image::before,
.product-detail-image::after {
  content: '';
  position: absolute;
  width: 52px;
  height: 52px;
  border: 1px solid var(--gold);
  z-index: 2;
  pointer-events: none;
}
.product-detail-image::before {
  top: -1px; left: -1px;
  border-right: none; border-bottom: none;
}
.product-detail-image::after {
  bottom: -1px; right: -1px;
  border-left: none; border-top: none;
}

.product-detail-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: grayscale(0.05) contrast(1.08) brightness(0.95);
  transition: filter var(--t-slow), transform var(--t-slow);
}

.product-detail-image:hover img {
  filter: grayscale(0) contrast(1.1) brightness(1);
  transform: scale(1.04);
}

/* Ambient glow halo behind product image */
.product-detail-sidebar {
  position: sticky;
  top: 120px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.product-detail-sidebar::before {
  content: '';
  position: absolute;
  inset: -40px;
  background: radial-gradient(circle at 50% 30%, rgba(212, 175, 55, 0.14) 0%, transparent 55%);
  filter: blur(60px);
  z-index: -1;
  pointer-events: none;
}

.product-specs {
  background: var(--bg-elev);
  border: 1px solid var(--hair);
  border-radius: 2px;
  padding: 32px 30px;
  position: relative;
}

.product-specs::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 60px; height: 1px;
  background: var(--gold);
}

.product-specs h3 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--gold);
  margin-bottom: 22px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
}

.product-specs ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.product-specs li {
  font-size: 0.9rem;
  color: var(--text);
  padding-left: 22px;
  position: relative;
  font-weight: 300;
  letter-spacing: 0.01em;
  line-height: 1.6;
}

.product-specs li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 1px;
  background: var(--gold);
}

/* =========================================================
   CTA
   ========================================================= */

.product-cta {
  position: relative;
  padding: 120px 0;
  background: var(--bg-deep);
  border-top: 1px solid var(--hair);
  overflow: hidden;
}

.product-cta::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-hair) 50%, transparent);
}

.product-cta::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.10) 0%, transparent 60%);
  filter: blur(80px);
  pointer-events: none;
}

.product-cta-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.product-cta h2 {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(1.8rem, 3.2vw, 2.8rem);
  font-weight: 400;
  color: var(--text-bright);
  margin-bottom: 18px;
  letter-spacing: -0.01em;
  line-height: 1.1;
}
.product-cta h2 em { font-style: italic; color: var(--gold); font-weight: 300; }

.product-cta p {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 40px;
  line-height: 1.85;
  font-weight: 300;
  max-width: 540px;
  margin-left: auto; margin-right: auto;
}

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

@media (max-width: 1024px) {
  .product-detail-grid { grid-template-columns: 1fr; gap: 64px; }
  .product-detail-sidebar { position: static; }
}

@media (max-width: 768px) {
  .product-hero { padding: 110px 0 60px; }
  .product-hero::before { left: 16px; }
  .product-hero-bg-img { width: 100%; opacity: 0.08; }
  .product-hero-content { width: 100%; }
  .product-hero-title { font-size: 2.1rem; line-height: 1.1; }
  .product-hero-lede { font-size: 1rem; }
  .product-breadcrumb {
    margin-bottom: 28px;
    flex-wrap: wrap;
    gap: 6px;
    font-size: 0.64rem;
    letter-spacing: 0.18em;
  }
  .product-hero-meta {
    margin-bottom: 22px;
    padding-bottom: 16px;
    flex-wrap: wrap;
    gap: 8px 14px;
  }
  .product-hero-tag { font-size: 0.6rem; letter-spacing: 0.28em; }
  .product-hero-index { font-size: 0.9rem; margin-left: 0; }

  .feature-grid { grid-template-columns: 1fr; gap: 24px; }
  .product-detail { padding: 64px 0; }
  .product-detail-grid { gap: 48px; }
  .product-detail-content h2 { font-size: 1.7rem; }
  .product-detail-content > p { font-size: 0.96rem; }
  .product-features { margin-top: 40px; padding-top: 32px; }
  .feature-icon { width: 38px; height: 38px; }
  .product-detail-image::before,
  .product-detail-image::after { width: 36px; height: 36px; }
  .product-specs { padding: 24px 22px; }
  .product-cta { padding: 70px 0; }
  .product-cta h2 { font-size: 1.7rem; }
  .product-cta p { font-size: 0.96rem; margin-bottom: 32px; }
}

@media (max-width: 480px) {
  .product-hero { padding: 100px 0 50px; }
  .product-hero-title { font-size: 1.8rem; }
  .product-hero-lede { font-size: 0.94rem; }
  .product-detail { padding: 56px 0; }
  .product-detail-content h2 { font-size: 1.5rem; }
  .feature-item { gap: 14px; }
  .feature-icon { width: 34px; height: 34px; }
  .feature-icon svg { width: 16px; height: 16px; }
  .product-specs { padding: 22px 18px; }
  .product-cta h2 { font-size: 1.55rem; }
}

/* Mobile polish shared with the main site */
@media (max-width: 768px) {
  .product-hero,
  .product-detail,
  .product-cta {
    overflow: hidden;
  }

  .product-hero-content,
  .product-detail-content,
  .product-cta-inner {
    max-width: min(560px, calc(100vw - 44px));
    margin-left: auto;
    margin-right: auto;
    min-width: 0;
  }

  .product-hero-content,
  .product-cta-inner {
    text-align: center;
  }

  .product-breadcrumb {
    justify-content: center;
    line-height: 1.5;
    letter-spacing: 0.12em;
  }

  .product-hero-meta {
    justify-content: center;
    border-bottom-color: var(--hair-strong);
  }

  .product-hero-meta::before {
    left: 50%;
    transform: translateX(-50%);
  }

  .product-hero-title,
  .product-detail-content h2,
  .product-cta h2 {
    max-width: min(520px, calc(100vw - 44px));
    margin-left: auto;
    margin-right: auto;
    line-height: 1.08;
    text-wrap: balance;
    overflow-wrap: break-word;
  }

  .product-hero-lede,
  .product-detail-content > p,
  .product-cta p {
    max-width: min(520px, calc(100vw - 44px));
    margin-left: auto;
    margin-right: auto;
    line-height: 1.72;
  }

  .product-detail-grid {
    min-width: 0;
  }

  .product-features {
    max-width: min(520px, calc(100vw - 44px));
    margin-left: auto;
    margin-right: auto;
  }

  .feature-item {
    align-items: flex-start;
  }

  .feature-item h3,
  .product-specs h3 {
    letter-spacing: 0.16em;
    line-height: 1.4;
  }

  .feature-item p,
  .product-specs li {
    font-size: 0.88rem;
    line-height: 1.68;
  }

  .product-detail-sidebar {
    max-width: min(520px, calc(100vw - 44px));
    margin-left: auto;
    margin-right: auto;
    width: 100%;
  }

  .product-detail-image {
    aspect-ratio: 4 / 3;
  }

  .product-specs {
    text-align: left;
  }

  .product-cta .btn,
  .product-cta .btn-primary {
    width: min(100%, 360px);
  }
}

@media (max-width: 480px) {
  .product-hero {
    padding: 88px 0 46px;
  }

  .product-breadcrumb {
    font-size: 0.56rem;
    letter-spacing: 0.1em;
    margin-bottom: 22px;
  }

  .product-hero-tag {
    font-size: 0.55rem;
    letter-spacing: 0.14em;
  }

  .product-hero-title {
    font-size: 1.72rem;
  }

  .product-detail-content h2 {
    font-size: 1.42rem;
  }

  .product-detail,
  .product-cta {
    padding: 54px 0;
  }

  .product-features {
    margin-top: 34px;
    padding-top: 28px;
  }

  .product-specs {
    padding: 22px 18px;
  }
}