/* === Home page-specific styles ===
   Page: /index.html
   Pairs with: site.css */

header.hero {
  padding: 96px 32px 56px;
  text-align: center;
}
header.hero h1 {
  font-size: clamp(56px, 10vw, 112px);
  font-weight: 400;
  margin: 0 0 14px;
  letter-spacing: 0.01em;
  line-height: 1;
}
header.hero .en-mark {
  display: block;
  font-size: clamp(13px, 1.4vw, 16px);
  opacity: 0.85;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  font-weight: 300;
  margin-bottom: 10px;
}
header.hero .jp-mark {
  display: block;
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(12px, 1.3vw, 15px);
  opacity: 0.75;
  letter-spacing: 0.4em;
  font-weight: 300;
}

/* Centered h2 for home page */
section h2 { text-align: center; }

.intro { text-align: center; max-width: 540px; margin: 0 auto; }
.intro .lang-vn p { font-size: 17px; opacity: 1; }
.intro .lang-en {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px dotted #d8d0c4;
  opacity: 0.78;
}
.intro .lang-en p {
  font-family: 'Geist', system-ui, sans-serif;
  font-style: italic;
  font-size: 13.5px;
  line-height: 1.55;
}
.intro .lang-en::before {
  content: "EN";
  display: block;
  font-size: 10px;
  letter-spacing: 0.22em;
  opacity: 0.75;
  margin-bottom: 12px;
}

/* A-Z navigation grid */
.az-grid {
  display: grid;
  grid-template-columns: repeat(13, 1fr);
  gap: 0;
  max-width: 640px;
  margin: 0 auto;
  border-top: 1px solid #e5dcce;
  border-left: 1px solid #e5dcce;
}
.az-grid a, .az-grid span {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1;
  font-size: 17px;
  letter-spacing: 0.02em;
  text-decoration: none;
  border-right: 1px solid #e5dcce;
  border-bottom: 1px solid #e5dcce;
  transition: background 0.15s, transform 0.22s ease-out;
}
.az-grid a { color: #1f1812; }
.az-grid a:hover {
  background: #1f1812;
  color: #f7f3ec;
  transform: scale(1.04);
}
.az-grid .disabled { opacity: 0.25; cursor: default; }

/* Oil entries list */
/* === New home landing page === */

body.home-page .nav-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  max-width: 760px;
  margin: 0 auto;
  background: #d8d0c4;
  border: 1px solid #d8d0c4;
}

body.home-page .nav-card {
  display: block;
  background: #f7f3ec;
  padding: 40px 32px 32px;
  text-decoration: none;
  transition: background 0.25s, transform 0.22s ease-out;
  position: relative;
}

body.home-page .nav-card:hover {
  background: #f0eadf;
}

body.home-page .nav-card .card-meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  opacity: 0.6;
  margin-bottom: 18px;
}

body.home-page .nav-card .card-title {
  font-size: 28px;
  font-weight: 400;
  margin: 0 0 16px;
  letter-spacing: 0.01em;
  line-height: 1.1;
}

body.home-page .nav-card .card-desc-vn {
  margin: 0 0 8px;
  opacity: 0.92;
  font-size: 16px;
}

body.home-page .nav-card .card-desc-en {
  margin: 0 0 24px;
  opacity: 0.7;
  font-size: 14px;
  font-style: italic;
}

body.home-page .nav-card .card-cta {
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  opacity: 0.85;
}

body.home-page .stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

body.home-page .stat .stat-num {
  font-family: 'EB Garamond', serif;
  font-size: 56px;
  font-weight: 400;
  letter-spacing: -0.005em;
  line-height: 1;
  margin-bottom: 12px;
}

body.home-page .stat .stat-label {
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  opacity: 0.7;
}

body.home-page .glossary-callout {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

body.home-page .glossary-callout h2 {
  margin-bottom: 24px;
}

body.home-page .glossary-callout .glossary-desc-vn {
  font-size: 16px;
  opacity: 0.92;
  margin: 0 0 8px;
}

body.home-page .glossary-callout .glossary-desc-en {
  font-size: 14px;
  opacity: 0.7;
  font-style: italic;
  margin: 0 0 28px;
}

body.home-page .glossary-link {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 12px 28px;
  border: 1px solid #1f1812;
  border-radius: 100px;
  transition: transform 0.22s ease-out, background 0.2s;
}

body.home-page .glossary-link:hover {
  transform: scale(1.05);
  background: rgba(31, 24, 18, 0.04);
}

@media (max-width: 720px) {
  body.home-page .nav-cards {
    grid-template-columns: 1fr;
  }
  body.home-page .nav-card {
    padding: 32px 24px 28px;
  }
  body.home-page .stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px 16px;
  }
  body.home-page .stat .stat-num {
    font-size: 44px;
  }
}

/* Letter groups — collapsible */
.oils-index { max-width: 640px; margin: 0 auto; }

.letter-group { margin-bottom: 0; }

.letter-heading {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  cursor: pointer;
  padding: 28px 0 18px;
  border-top: 1px solid #d8d0c4;
  user-select: none;
  font-weight: 400;
  font-size: 32px;
  letter-spacing: 0.02em;
  margin: 0;
  transition: opacity 0.2s;
}
.letter-heading:hover { opacity: 0.65; }
.letter-heading .count {
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  opacity: 0.55;
  font-weight: 400;
}
.letter-heading::before {
  content: "+";
  display: inline-block;
  margin-right: 14px;
  font-size: 24px;
  opacity: 0.6;
  transition: transform 0.25s;
}
.letter-group.active .letter-heading::before {
  content: "−";
  transform: rotate(0);
}
.letter-group:last-child .letter-heading { border-bottom: 1px solid #d8d0c4; }
.letter-group.active:last-child .letter-heading { border-bottom: none; }

.entries {
  display: none;
  grid-template-columns: 1fr;
  gap: 0;
  margin-bottom: 8px;
}
.letter-group.active .entries { display: grid; }
.letter-group.active:last-child .entries { border-bottom: 1px solid #d8d0c4; }
.entries a {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  padding: 24px 0;
  border-top: 1px solid #e5dcce;
  text-decoration: none;
  transition: transform 0.22s ease-out;
}
.entries a:last-child { border-bottom: 1px solid #e5dcce; }
.entries a:hover { transform: scale(1.02); }
.entries .name { font-size: 22px; }
.entries .botanical {
  font-style: italic;
  font-family: 'Geist', system-ui, sans-serif;
  opacity: 0.78;
  font-size: 13px;
  margin-left: 16px;
}
@media (max-width: 540px) {
  .entries .name { font-size: 18px; }
  .entries .botanical { font-size: 12px; margin-left: 0; display: block; margin-top: 2px; }
}
.entries .arrow {
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  opacity: 0.85;
}

.small-note {
  text-align: center;
  margin: 32px auto 0;
  font-size: 13px;
  opacity: 0.88;
  max-width: 540px;
}
.small-note .en {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  opacity: 0.82;
}

@media (max-width: 540px) {
  .az-grid { grid-template-columns: repeat(7, 1fr); max-width: 100%; }
  .az-grid a, .az-grid span { font-size: 15px; }
  .entries a { grid-template-columns: 1fr; gap: 4px; }
  .entries .botanical { margin-left: 0; }
  .entries .arrow { display: none; }
}