/* ============================================
   PAGE-SPECIFIC SHARED STYLES
   For product details, story, journal, faq, referral
   ============================================ */

/* Chinese typography */
html[lang="zh"] body { font-family: 'Noto Sans SC', 'Inter Tight', sans-serif; }
html[lang="zh"] .display, html[lang="zh"] h1, html[lang="zh"] h2, html[lang="zh"] h3, html[lang="zh"] h4 {
  font-family: 'Noto Serif SC', 'Fraunces', serif; font-weight: 300;
}

/* ============ PRODUCT DETAIL ============ */
.pdp {
  padding: 130px 56px 100px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.pdp-gallery { position: sticky; top: 130px; }
.pdp-main-img {
  aspect-ratio: 4/5;
  background: var(--bg-deep);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
  margin-bottom: 16px;
}
.pdp-main-img img { width: 100%; height: 100%; object-fit: cover; }
.pdp-main-img .badge {
  position: absolute; top: 24px; right: 24px;
  background: var(--paper); padding: 8px 14px; border-radius: 100px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--burgundy);
}
.pdp-thumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.pdp-thumb {
  aspect-ratio: 1;
  background: var(--bg-deep);
  border-radius: 2px;
  cursor: pointer;
  border: 2px solid transparent;
  overflow: hidden;
}
.pdp-thumb.active { border-color: var(--ink); }
.pdp-thumb img { width: 100%; height: 100%; object-fit: cover; }

.pdp-info .breadcrumb {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 24px;
}
.pdp-info .breadcrumb a { color: var(--muted); text-decoration: none; }
.pdp-info .breadcrumb a:hover { color: var(--ink); }
.pdp-info .index {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--clay); margin-bottom: 20px;
}
.pdp-info h1 {
  font-family: 'Fraunces', serif; font-weight: 200;
  font-size: clamp(40px, 5vw, 72px); line-height: 0.95;
  letter-spacing: -0.025em; margin-bottom: 16px;
}
.pdp-info h1 em { font-style: italic; color: var(--burgundy); font-weight: 300; }
.pdp-info .tagline {
  font-family: 'Fraunces', serif; font-style: italic;
  font-size: 22px; color: var(--clay); margin-bottom: 36px;
}

.pdp-rating {
  display: flex; align-items: center; gap: 12px; margin-bottom: 36px;
  padding-bottom: 28px; border-bottom: 1px solid var(--line);
}
.pdp-rating .stars { color: var(--clay); letter-spacing: 0.1em; }
.pdp-rating .count { font-family: 'JetBrains Mono', monospace; font-size: 12px; color: var(--muted); letter-spacing: 0.1em; text-transform: uppercase; }

.pdp-key-claims { list-style: none; margin-bottom: 36px; }
.pdp-key-claims li {
  padding: 18px 0; border-bottom: 1px solid var(--line);
  font-size: 15px; color: var(--ink-soft);
  display: grid; grid-template-columns: auto 1fr auto;
  gap: 16px; align-items: start;
}
.pdp-key-claims li .num {
  font-family: 'JetBrains Mono', monospace; font-size: 10px;
  color: var(--clay); letter-spacing: 0.1em; margin-top: 2px;
}
.pdp-key-claims li .pct {
  font-family: 'Fraunces', serif; font-style: italic;
  color: var(--burgundy); font-size: 18px;
}

.pdp-price-row {
  display: flex; align-items: baseline; gap: 24px;
  margin-bottom: 28px; padding: 24px 0;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.pdp-price {
  font-family: 'Fraunces', serif; font-size: 36px; font-weight: 300; color: var(--ink);
}
.pdp-volume {
  font-family: 'JetBrains Mono', monospace; font-size: 11px;
  letter-spacing: 0.15em; text-transform: uppercase; color: var(--muted);
}

.pdp-actions { display: flex; gap: 12px; margin-bottom: 40px; }
.pdp-actions .btn { flex: 1; justify-content: center; }

.pdp-section {
  padding-top: 40px;
  border-top: 1px solid var(--line);
  margin-bottom: 40px;
}
.pdp-section h3 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--clay); margin-bottom: 20px; font-weight: 500;
}
.pdp-section p, .pdp-section li {
  font-size: 15px; color: var(--ink-soft); line-height: 1.7;
}
.pdp-section ul { list-style: none; }
.pdp-section ul li {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  display: flex; gap: 14px;
}
.pdp-section ul li::before {
  content: '◦'; color: var(--clay); flex-shrink: 0;
}

.pdp-howto {
  background: var(--paper); padding: 40px;
  border-radius: 4px;
}
.pdp-howto h3 { color: var(--clay); }
.pdp-howto ol { padding-left: 0; list-style: none; counter-reset: step; }
.pdp-howto ol li {
  counter-increment: step;
  padding: 14px 0 14px 48px;
  position: relative;
  border-bottom: 1px solid var(--line);
}
.pdp-howto ol li:last-child { border: none; }
.pdp-howto ol li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute; left: 0; top: 14px;
  font-family: 'Fraunces', serif; font-style: italic;
  color: var(--clay); font-size: 14px;
}

@media (max-width: 1024px) {
  .pdp { grid-template-columns: 1fr; gap: 40px; padding: 110px 24px 60px; }
  .pdp-gallery { position: relative; top: 0; }
}

/* ============ STORY PAGE ============ */
.story-section {
  padding: 100px 56px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.story-section.alt { background: var(--paper); }
.story-section.image-left .image { order: -1; }
.story-section .image {
  aspect-ratio: 4/5;
  background-size: cover;
  background-position: center;
  border-radius: 4px;
  box-shadow: var(--shadow);
}
.story-section .text .chapter {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--clay); margin-bottom: 24px;
}
.story-section .text h2 {
  font-family: 'Fraunces', serif; font-weight: 200;
  font-size: clamp(40px, 5vw, 72px); line-height: 1; letter-spacing: -0.025em;
  margin-bottom: 28px;
}
.story-section .text h2 em { font-style: italic; color: var(--burgundy); font-weight: 300; }
.story-section .text p {
  font-size: 17px; color: var(--ink-soft); line-height: 1.7;
  margin-bottom: 18px;
}

@media (max-width: 1024px) {
  .story-section { grid-template-columns: 1fr; gap: 40px; padding: 60px 24px; }
  .story-section.image-left .image { order: 0; }
}

/* ============ JOURNAL / FAQ ============ */
.journal-grid {
  padding: 80px 56px 120px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.journal-card {
  background: var(--paper); border-radius: 4px; overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform 0.4s;
  text-decoration: none;
  color: inherit;
}
.journal-card:hover { transform: translateY(-4px); }
.journal-card .img {
  aspect-ratio: 4/3;
  background-size: cover;
  background-position: center;
  background-color: var(--bg-deep);
}
.journal-card .info { padding: 28px; flex: 1; display: flex; flex-direction: column; }
.journal-card .category {
  font-family: 'JetBrains Mono', monospace; font-size: 10px;
  letter-spacing: 0.25em; text-transform: uppercase; color: var(--clay);
  margin-bottom: 14px;
}
.journal-card h3 {
  font-family: 'Fraunces', serif; font-weight: 300;
  font-size: 24px; line-height: 1.2; margin-bottom: 14px;
  letter-spacing: -0.015em;
}
.journal-card p {
  font-size: 14px; color: var(--ink-soft); line-height: 1.6;
  margin-bottom: 20px; flex: 1;
}
.journal-card .meta {
  font-family: 'JetBrains Mono', monospace; font-size: 10px;
  letter-spacing: 0.15em; text-transform: uppercase; color: var(--muted);
  padding-top: 16px; border-top: 1px solid var(--line);
}

.faq-section { padding: 80px 56px 120px; }
.faq-list { max-width: 900px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--line);
}
.faq-q {
  padding: 32px 0; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
  gap: 32px; transition: color 0.3s;
}
.faq-q:hover { color: var(--clay); }
.faq-q h3 {
  font-family: 'Fraunces', serif; font-weight: 300;
  font-size: 24px; line-height: 1.3; letter-spacing: -0.01em;
  flex: 1;
}
.faq-q .toggle {
  flex-shrink: 0;
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid var(--ink);
  display: flex; align-items: center; justify-content: center;
  font-family: 'JetBrains Mono', monospace; font-size: 18px;
  transition: all 0.4s;
}
.faq-item.open .faq-q .toggle {
  background: var(--ink); color: var(--paper); transform: rotate(45deg);
}
.faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height 0.5s cubic-bezier(.6,0,.2,1);
}
.faq-item.open .faq-a { max-height: 500px; }
.faq-a-inner {
  padding-bottom: 32px; padding-right: 80px;
  font-size: 16px; color: var(--ink-soft); line-height: 1.7;
}

@media (max-width: 1024px) {
  .journal-grid { grid-template-columns: 1fr; padding: 60px 24px; }
  .faq-section { padding: 60px 24px; }
  .faq-q h3 { font-size: 18px; }
  .faq-a-inner { padding-right: 0; }
}

/* ============ REFERRAL ============ */
.referral {
  padding: 80px 56px 120px;
  max-width: 800px; margin: 0 auto;
}
.ref-card {
  background: var(--paper); padding: 56px 48px;
  border-radius: 4px; text-align: center;
  box-shadow: var(--shadow);
  margin-bottom: 32px;
}
.ref-card .chapter {
  font-family: 'JetBrains Mono', monospace; font-size: 11px;
  letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--clay); margin-bottom: 24px;
}
.ref-card h2 {
  font-family: 'Fraunces', serif; font-weight: 300;
  font-size: clamp(36px, 5vw, 64px); line-height: 1;
  letter-spacing: -0.025em; margin-bottom: 24px;
}
.ref-card h2 em { font-style: italic; color: var(--burgundy); }
.ref-card p { color: var(--ink-soft); margin-bottom: 32px; line-height: 1.6; }

.ref-link-box {
  display: flex; gap: 8px;
  background: var(--bg); padding: 8px;
  border-radius: 100px;
  margin-bottom: 16px;
}
.ref-link-box input {
  flex: 1; background: none; border: none;
  padding: 14px 22px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px; letter-spacing: 0.05em;
  color: var(--ink); outline: none;
}
.ref-link-box button {
  background: var(--ink); color: var(--paper);
  border: none; padding: 14px 24px; border-radius: 100px;
  font-family: inherit; font-size: 11px;
  letter-spacing: 0.15em; text-transform: uppercase; cursor: pointer;
}
.ref-share { display: flex; gap: 12px; justify-content: center; margin-top: 24px; }
.ref-share a {
  width: 44px; height: 44px;
  border-radius: 50%; background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  text-decoration: none; color: var(--ink);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; letter-spacing: 0.1em;
  transition: background 0.3s;
}
.ref-share a:hover { background: var(--ink); color: var(--paper); }

.ref-stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  background: var(--paper); padding: 32px; border-radius: 4px;
}
.ref-stat { text-align: center; }
.ref-stat .num {
  font-family: 'Fraunces', serif; font-weight: 300;
  font-size: 40px; color: var(--burgundy);
  letter-spacing: -0.02em; line-height: 1;
  margin-bottom: 8px;
}
.ref-stat .label {
  font-family: 'JetBrains Mono', monospace; font-size: 10px;
  letter-spacing: 0.2em; text-transform: uppercase; color: var(--muted);
}

@media (max-width: 720px) {
  .referral { padding: 60px 20px; }
  .ref-card { padding: 36px 24px; }
  .ref-link-box { flex-direction: column; border-radius: 12px; }
  .ref-link-box button { border-radius: 100px; }
}