:root {
  --ink: #4A3324;
  --brown: #5C3F25; --brown-soft: #6B5040; --brown-mut: #927866; --brown-pale: #A08A72;
  --gold: #B89556; --gold-hi: #C9A961; --gold-pale: #E5C886;
  --gold-line: rgba(184,149,86,0.45); --gold-hair: rgba(201,169,97,0.28);
  --serif-jp: "Shippori Mincho B1", serif;
  --serif-body: "Noto Serif JP", serif;
  --serif-en: "Cormorant Garamond", serif;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--serif-body); color: var(--ink);
  background: linear-gradient(180deg, #FCF7EF 0%, #FAF1E3 55%, #FBF4E8 100%);
  -webkit-font-smoothing: antialiased; letter-spacing: 0.02em; overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
::selection { background: rgba(201,169,97,0.25); }
.sp-br { display: none; }

.divider { display: flex; align-items: center; justify-content: center; gap: 14px; max-width: 320px; margin: 26px auto; }
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: linear-gradient(90deg, transparent, var(--gold-line)); }
.divider::after { background: linear-gradient(90deg, var(--gold-line), transparent); }

.reveal { opacity: 0; transform: translateY(26px); transition: opacity 1s var(--ease-out), transform 1s var(--ease-out); }
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 0.12s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; } * { animation: none !important; }
}

.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px clamp(24px, 5vw, 72px);
  transition: background 0.45s ease, box-shadow 0.45s ease, padding 0.45s ease;
}
.site-header.is-scrolled {
  padding-top: 14px; padding-bottom: 14px;
  background: rgba(252,247,239,0.82);
  -webkit-backdrop-filter: blur(14px) saturate(1.4); backdrop-filter: blur(14px) saturate(1.4);
  box-shadow: 0 1px 0 var(--gold-hair), 0 12px 40px -24px rgba(107,66,37,0.18);
}
.brand { display: flex; flex-direction: column; line-height: 1; }
.brand-ja { font-family: var(--serif-jp); font-size: 18px; font-weight: 500; letter-spacing: 0.35em; color: #6B4E32; }
.brand-en { font-family: var(--serif-en); font-style: italic; font-size: 10px; letter-spacing: 0.3em; color: var(--gold); margin-top: 6px; }
.site-nav { display: flex; align-items: center; gap: 30px; font-family: var(--serif-jp); font-size: 13px; letter-spacing: 0.2em; color: var(--brown-soft); }
.site-nav a { position: relative; transition: color 0.3s; padding: 4px 0; }
.site-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 0; height: 1px; background: var(--gold); transition: right 0.4s var(--ease-out); }
.site-nav a:hover { color: #A88345; }
.site-nav a:hover::after { right: 0; }

.page-blooms {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background:
    radial-gradient(ellipse 500px 380px at 5% 12%, rgba(244,200,188,0.36) 0%, transparent 60%),
    radial-gradient(ellipse 460px 360px at 95% 14%, rgba(232,175,162,0.32) 0%, transparent 60%),
    radial-gradient(ellipse 520px 380px at 8% 90%, rgba(232,175,162,0.32) 0%, transparent 60%),
    radial-gradient(ellipse 480px 380px at 92% 92%, rgba(244,210,200,0.36) 0%, transparent 60%);
  animation: drift 22s ease-in-out infinite;
}
@keyframes drift { 0%,100% { transform: translate(0,0); } 50% { transform: translate(9px,-7px); } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: none; } }

.page-title { position: relative; z-index: 1; padding: 165px 24px 44px; text-align: center; }
.pt-kicker { font-family: var(--serif-en); font-style: italic; font-size: 13px; letter-spacing: 0.42em; color: var(--gold); margin-bottom: 18px; opacity: 0; animation: fadeUp 1.1s var(--ease-out) 0.1s forwards; }
.pt-title { font-family: var(--serif-jp); font-weight: 500; font-size: clamp(28px, 4vw, 40px); letter-spacing: 0.22em; color: var(--brown); line-height: 1.5; opacity: 0; animation: fadeUp 1.3s var(--ease-out) 0.3s forwards; }
.pt-lede { font-family: var(--serif-jp); font-size: clamp(13px, 1.5vw, 15px); letter-spacing: 0.1em; color: var(--brown-soft); line-height: 2.3; margin-top: 8px; opacity: 0; animation: fadeUp 1.2s var(--ease-out) 0.55s forwards; }
.pt-divider { opacity: 0; animation: fadeUp 1.1s var(--ease-out) 0.45s forwards; }

.wrap { position: relative; z-index: 1; max-width: 820px; margin: 0 auto; padding: 0 clamp(20px, 4vw, 24px) 70px; }

/* LINE panel */
.line-panel {
  position: relative;
  padding: clamp(36px, 5vw, 52px) clamp(22px, 4vw, 44px);
  background: linear-gradient(135deg, rgba(255,250,240,0.95) 0%, rgba(244,210,200,0.32) 100%);
  border: 1px solid rgba(184,149,86,0.5);
  border-radius: 8px;
  box-shadow: 0 28px 60px -28px rgba(184,149,86,0.32);
  overflow: hidden;
  margin-bottom: 22px;
  text-align: center;
}
.line-panel .bloom {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 260px 200px at 5% 0%, rgba(244,200,188,0.42) 0%, transparent 65%),
    radial-gradient(ellipse 260px 200px at 100% 100%, rgba(232,175,162,0.38) 0%, transparent 65%);
}
.line-inner { position: relative; }
.line-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 58px; height: 58px; border-radius: 50%;
  background: #06C755; color: #FFF; margin-bottom: 18px;
  box-shadow: 0 12px 28px -10px rgba(6,199,85,0.5);
}
.line-kicker { font-family: var(--serif-en); font-style: italic; font-size: 12px; letter-spacing: 0.32em; color: var(--gold); margin-bottom: 10px; }
.line-panel h2 { font-family: var(--serif-jp); font-weight: 500; font-size: clamp(19px, 2.2vw, 24px); letter-spacing: 0.16em; color: var(--brown); line-height: 1.7; margin-bottom: 14px; }
.line-panel p.desc { font-size: clamp(12.5px, 1.4vw, 13.5px); letter-spacing: 0.04em; color: var(--brown-soft); line-height: 2; margin-bottom: 30px; }
.btn-line {
  display: inline-flex; align-items: center; gap: 12px;
  padding: clamp(14px, 2vw, 18px) clamp(28px, 5vw, 44px);
  background: #06C755; color: #FFF;
  font-family: var(--serif-jp);
  font-size: clamp(13px, 1.5vw, 15px); letter-spacing: 0.22em;
  border-radius: 999px;
  box-shadow: 0 14px 30px -10px rgba(6,199,85,0.55);
  transition: background 0.35s, transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out);
  position: relative; overflow: hidden;
}
.btn-line::before { content: ""; position: absolute; top: 0; left: -80%; width: 60%; height: 100%; background: linear-gradient(105deg, transparent, rgba(255,255,255,0.3), transparent); transform: skewX(-20deg); transition: left 0.7s var(--ease-out); }
.btn-line:hover { background: #05B04B; transform: translateY(-2px); box-shadow: 0 18px 40px -10px rgba(6,199,85,0.7); }
.btn-line:hover::before { left: 120%; }
.line-note { margin-top: 20px; font-size: 10.5px; letter-spacing: 0.16em; color: var(--brown-pale); }

/* notes */
.notes-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-bottom: 22px; }
.note-card {
  padding: clamp(22px, 3vw, 28px);
  background: rgba(255,251,244,0.75);
  border: 1px solid rgba(201,169,97,0.3);
  border-radius: 6px;
  transition: transform 0.45s var(--ease-out), box-shadow 0.45s var(--ease-out);
}
.note-card:hover { transform: translateY(-3px); box-shadow: 0 16px 34px -18px rgba(184,149,86,0.28); }
.note-tag { font-family: var(--serif-en); font-style: italic; font-size: 11px; letter-spacing: 0.3em; color: var(--gold); margin-bottom: 8px; }
.note-card h4 { font-family: var(--serif-jp); font-weight: 500; font-size: 14.5px; letter-spacing: 0.14em; color: var(--brown); margin-bottom: 12px; }
.note-card p { font-size: 12.5px; letter-spacing: 0.04em; color: var(--brown-soft); line-height: 2; }
.note-card a { color: #A88345; border-bottom: 1px solid var(--gold-hi); transition: color 0.3s; }
.note-card a:hover { color: #6B4225; }

.disclaimer {
  padding: 20px 24px;
  background: rgba(244,210,200,0.18);
  border: 1px solid rgba(201,169,97,0.3);
  border-radius: 6px;
}
.disclaimer p { font-size: 12px; letter-spacing: 0.04em; color: var(--brown-soft); line-height: 2; }

.back-row { text-align: center; margin-top: 40px; }
.link-underline {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--serif-jp); font-size: 12.5px; letter-spacing: 0.16em; color: #A88345;
  padding-bottom: 5px; border-bottom: 1px solid var(--gold-hi);
  transition: color 0.3s, border-color 0.3s;
}
.link-underline:hover { color: #6B4225; border-color: #6B4225; }

.site-footer { position: relative; z-index: 1; padding: 60px 24px 40px; border-top: 1px solid rgba(201,169,97,0.28); background: linear-gradient(180deg, transparent 0%, rgba(248,232,215,0.45) 100%); text-align: center; }
.footer-brand-ja { font-family: var(--serif-jp); font-weight: 500; font-size: 18px; letter-spacing: 0.35em; color: var(--brown); margin-bottom: 8px; }
.footer-brand-en { font-family: var(--serif-en); font-style: italic; font-size: 11px; letter-spacing: 0.35em; color: var(--gold); margin-bottom: 24px; }
.footer-copy { font-size: 11px; letter-spacing: 0.15em; color: var(--brown-pale); }

@media (max-width: 760px) {
  .sp-br { display: initial; }
  .site-header { padding: 14px 16px; flex-wrap: wrap; gap: 12px 18px; }
  .site-nav { gap: 16px; font-size: 11px; letter-spacing: 0.13em; flex-wrap: wrap; }
  .page-title { padding-top: 150px; }
  .notes-grid { grid-template-columns: 1fr; gap: 16px; }
  h1, h2, h3, h4 { text-wrap: balance; line-break: strict; }
  p { line-break: strict; }
}

/* Phase 2A: inline style extraction */
.arrow-serif-lg { font-family:serif; font-size:18px; }
.arrow-serif { font-family:serif; }