/* ============================
   YAMATO HARUMI — Editorial Salon
   Shared Design Tokens & Components
   ============================ */

:root {
  --bg-outer:   #07050a;
  --bg-paper:   #1a120c;
  --bg-card:    #221710;
  --bg-deco:    #2d1f15;
  --bg-accent:  #3a2719;
  --fg:         #f0e3c8;
  --fg-soft:    #d6c4a0;
  --fg-muted:   #a89376;
  --line:       #5a4530;
  --line-soft:  #3d2c1c;
  --accent:     #d4a86a;
  --accent-br:  #ecc88c;
  --accent-dim: #8b6a3f;
  --burgundy:   #6e3640;
  --serif:      'Cormorant Garamond', 'Noto Serif JP', Georgia, serif;
  --serif-display: 'Italiana', 'Cormorant Garamond', serif;
  --serif-sc:   'Cormorant SC', 'Cormorant Garamond', serif;
  --serif-jp:   'Noto Serif JP', serif;
  --sans:       'Noto Sans JP', -apple-system, sans-serif;
  --frame-w:    580px;
  --ease:       cubic-bezier(0.4,0,0.2,1);
  --ease-soft:  cubic-bezier(0.25,0.1,0.25,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  background: var(--bg-outer);
  color: var(--fg);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.85;
  min-height: 100vh;
  background-image:
    radial-gradient(ellipse at top, rgba(108,72,40,0.10), transparent 60%),
    radial-gradient(ellipse at bottom, rgba(58,30,40,0.07), transparent 60%);
}
@media (min-width: 768px) {
  body { padding: 40px 0; }
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }

/* ============================
   PAGE FRAME
   ============================ */
.page-frame {
  max-width: var(--frame-w);
  margin: 0 auto;
  background:
    radial-gradient(ellipse 800px 600px at 30% 0%, rgba(212,168,106,0.04), transparent 70%),
    repeating-linear-gradient(45deg, transparent 0 18px, rgba(212,168,106,0.018) 18px 19px),
    repeating-linear-gradient(-45deg, transparent 0 18px, rgba(212,168,106,0.015) 18px 19px),
    var(--bg-paper);
  position: relative;
  overflow-x: hidden;
  min-height: 100vh;
}
@media (min-width: 768px) {
  .page-frame {
    min-height: auto;
    box-shadow:
      0 0 0 1px var(--line-soft) inset,
      0 0 0 8px var(--bg-paper),
      0 0 0 9px var(--line),
      0 80px 200px rgba(0,0,0,0.9);
  }
}

/* ============================
   ORNAMENT
   ============================ */
.orn { display: flex; align-items: center; justify-content: center; gap: 12px; }
.orn .line { width: 36px; height: 1px; background: linear-gradient(90deg, transparent, var(--accent), transparent); }
.orn .diamond { width: 6px; height: 6px; background: var(--accent); transform: rotate(45deg); }
.orn .dot { width: 4px; height: 4px; background: var(--accent); border-radius: 50%; }

/* ============================
   SUB-PAGE HEADER (for chapter pages)
   ============================ */
.sub-head {
  position: relative;
  padding: 22px 24px 18px;
  border-bottom: 1px solid var(--line-soft);
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(26,18,12,0.5);
}
.back-link {
  font-family: var(--serif);
  font-style: italic;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--accent-br);
  text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 6px;
  transition: color 0.25s var(--ease);
}
.back-link:hover { color: var(--fg); }
.back-link .arrow { font-style: normal; }
.sub-head .brand {
  font-family: var(--serif-sc);
  font-size: 10px;
  letter-spacing: 0.35em;
  color: var(--fg-muted);
  text-transform: uppercase;
}
.sub-head .actions { display: flex; gap: 8px; }
.icon-btn {
  width: 30px; height: 30px;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  border-radius: 50%;
  transition: all 0.2s var(--ease);
  background: var(--bg-card);
}
.icon-btn svg { width: 13px; height: 13px; }
.icon-btn:hover { color: var(--fg); border-color: var(--accent); }

/* ============================
   CHAPTER PAGE HERO
   ============================ */
.chapter-hero {
  position: relative;
  height: 280px;
  overflow: hidden;
  border-bottom: 1px solid var(--accent-dim);
}
.chapter-hero img {
  width: 100%; height: 100%; object-fit: cover;
  filter: brightness(0.7) saturate(1.05);
}
.chapter-hero::after {
  content: '';
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, transparent 30%, rgba(26,18,12,0.95) 100%),
    repeating-linear-gradient(0deg, transparent 0 12px, rgba(0,0,0,0.05) 12px 13px);
}
.chapter-hero .label {
  position: absolute; bottom: 28px; left: 0; right: 0;
  text-align: center; z-index: 2;
  padding: 0 24px;
}
.chapter-hero .kicker {
  font-family: var(--serif);
  font-style: italic;
  font-size: 11px;
  letter-spacing: 0.4em;
  color: var(--accent-br);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.chapter-hero h1 {
  font-family: var(--serif-display);
  font-weight: 400;
  font-size: 36px;
  letter-spacing: 0.08em;
  color: var(--fg);
  line-height: 1.1;
  text-shadow: 0 4px 20px rgba(0,0,0,0.7);
}
.chapter-hero .ja {
  font-family: var(--serif-jp);
  font-size: 11px;
  color: var(--accent-br);
  letter-spacing: 0.3em;
  margin-top: 8px;
}

/* ============================
   CHAPTER BODY
   ============================ */
.chapter-body { padding: 36px 28px 60px; }
.chapter-body .lead {
  font-family: var(--serif);
  font-style: italic;
  font-size: 15px;
  color: var(--fg-soft);
  text-align: center;
  margin-bottom: 32px;
  line-height: 1.85;
}

.section {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  margin-bottom: 16px;
  padding: 22px 24px;
  background-image:
    repeating-linear-gradient(135deg, transparent 0 24px, rgba(212,168,106,0.022) 24px 25px),
    repeating-linear-gradient(45deg, transparent 0 24px, rgba(212,168,106,0.016) 24px 25px);
  position: relative;
}
.section::before, .section::after {
  content: '';
  position: absolute; left: 8px; right: 8px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-dim), transparent);
}
.section::before { top: -1px; }
.section::after { bottom: -1px; }
.section.feature {
  background: linear-gradient(135deg, rgba(110,54,64,0.16), rgba(212,168,106,0.04)), var(--bg-card);
  border-color: var(--accent);
}
.section .section-num {
  font-family: var(--serif);
  font-style: italic;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.section h2 {
  font-family: var(--serif-display);
  font-weight: 400;
  font-size: 24px;
  letter-spacing: 0.05em;
  color: var(--fg);
  margin-bottom: 4px;
  line-height: 1.2;
}
.section .en {
  font-family: var(--serif);
  font-style: italic;
  font-size: 13px;
  color: var(--accent-br);
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}
.section h3 {
  font-family: var(--serif-jp);
  font-size: 15px;
  font-weight: 500;
  color: var(--accent-br);
  margin: 18px 0 8px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--line-soft);
}
.section p {
  color: var(--fg-soft);
  font-size: 14px;
  line-height: 1.95;
  margin-bottom: 10px;
}
.section strong { color: var(--fg); font-weight: 500; }
.section ul, .section ol {
  list-style: none; padding-left: 0;
  margin: 10px 0;
}
.section li {
  position: relative;
  padding-left: 24px;
  font-size: 14px;
  color: var(--fg-soft);
  margin-bottom: 8px;
  line-height: 1.85;
}
.section ul li::before {
  content: '◆';
  position: absolute; left: 0; top: 6px;
  color: var(--accent);
  font-size: 9px;
}
.section ol { counter-reset: step; }
.section ol li::before {
  counter-increment: step;
  content: counter(step, upper-roman);
  position: absolute; left: 0; top: 0;
  font-family: var(--serif);
  font-style: italic;
  color: var(--accent);
  font-size: 13px;
  letter-spacing: 0.05em;
}
.section .callout {
  background: rgba(212,168,106,0.05);
  border-left: 2px solid var(--accent);
  padding: 14px 16px;
  margin: 16px 0;
  font-family: var(--serif-jp);
  font-size: 13.5px;
  color: var(--fg-soft);
}
.section .callout .label {
  font-family: var(--serif);
  font-style: italic;
  font-size: 10px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
  display: block;
}

/* Table */
.editorial-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-family: var(--serif-jp);
  font-size: 13.5px;
}
.editorial-table thead th {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  text-align: left;
  padding: 12px 8px;
  border-bottom: 1px solid var(--accent-dim);
}
.editorial-table tbody td {
  padding: 12px 8px;
  border-bottom: 1px dashed var(--line-soft);
  color: var(--fg-soft);
  vertical-align: top;
}
.editorial-table tbody tr:last-child td { border-bottom: none; }
.editorial-table .price {
  font-family: var(--serif);
  text-align: right;
  color: var(--accent-br);
  white-space: nowrap;
  letter-spacing: 0.04em;
  font-size: 14px;
}

/* Sub-page footer / navigation */
.page-nav {
  margin: 32px 24px 16px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 10px;
}
.page-nav a {
  padding: 14px;
  border: 1px solid var(--accent-dim);
  background: var(--bg-card);
  font-family: var(--serif);
  font-style: italic;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-br);
  text-align: center;
  transition: all 0.25s var(--ease);
}
.page-nav a:hover { background: var(--bg-accent); color: var(--fg); border-color: var(--accent); }
.page-nav .next { text-align: right; }
.page-nav .prev { text-align: left; }

/* Signature */
.signature {
  margin: 32px 28px;
  padding: 22px;
  text-align: center;
  background: var(--bg-card);
  border: 1px solid var(--accent-dim);
  background-image: repeating-linear-gradient(45deg, transparent 0 12px, rgba(212,168,106,0.025) 12px 13px);
  position: relative;
}
.signature::before, .signature::after {
  content: '';
  position: absolute; left: 50%; transform: translateX(-50%);
  width: 50%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}
.signature::before { top: 6px; }
.signature::after { bottom: 6px; }
.signature-mark {
  font-family: var(--serif-display);
  font-size: 17px;
  letter-spacing: 0.18em;
  color: var(--accent-br);
}
.signature-sub {
  font-family: var(--serif-sc);
  font-size: 10px;
  letter-spacing: 0.4em;
  color: var(--fg-muted);
  text-transform: uppercase;
  margin-top: 6px;
}

/* ============================
   PLATE (Tipped-In Print) — 装幀本の図版風
   ============================ */
.plate {
  margin: 28px -4px 32px;
  padding: 18px;
  background:
    repeating-linear-gradient(45deg, transparent 0 14px, rgba(212,168,106,0.025) 14px 15px),
    var(--bg-deco);
  border: 1px solid var(--accent-dim);
  position: relative;
  text-align: center;
}
.plate::before {
  content: '';
  position: absolute;
  top: 6px; left: 6px; right: 6px; bottom: 6px;
  border: 1px solid var(--line-soft);
  pointer-events: none;
}
.plate-num {
  font-family: var(--serif);
  font-style: italic;
  font-size: 10px;
  letter-spacing: 0.35em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 4px;
}
.plate-title {
  font-family: var(--serif-display);
  font-size: 20px;
  letter-spacing: 0.06em;
  color: var(--fg);
  margin-bottom: 14px;
  line-height: 1.2;
}
.plate-orn {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  margin-bottom: 14px;
}
.plate-orn .line { width: 24px; height: 1px; background: linear-gradient(90deg, transparent, var(--accent), transparent); }
.plate-orn .diamond { width: 5px; height: 5px; background: var(--accent); transform: rotate(45deg); }

.plate-frame {
  background: #ffffff;
  padding: 10px;
  border: 1px solid var(--accent);
  display: inline-block;
  max-width: 100%;
  cursor: zoom-in;
  transition: transform 0.3s var(--ease);
  position: relative;
}
.plate-frame:hover { transform: translateY(-2px); }
.plate-frame::after {
  content: '⤢';
  position: absolute;
  top: 8px; right: 8px;
  width: 24px; height: 24px;
  background: rgba(8,5,3,0.7);
  color: var(--accent);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px;
  opacity: 0;
  transition: opacity 0.25s var(--ease);
}
.plate-frame:hover::after { opacity: 1; }
.plate-frame img {
  width: 100%; height: auto; display: block;
  max-width: 480px;
}
.plate-caption {
  font-family: var(--serif);
  font-style: italic;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--fg-muted);
  margin-top: 14px;
  text-transform: uppercase;
}
.plate-caption .open {
  color: var(--accent);
  border-bottom: 1px solid var(--accent-dim);
  padding-bottom: 1px;
  margin-left: 6px;
  cursor: pointer;
  transition: color 0.2s var(--ease);
}
.plate-caption .open:hover { color: var(--accent-br); border-color: var(--accent); }

/* Reference link (テキストリンクのみ) */
.ref-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 6px 0;
  padding: 8px 14px;
  background: transparent;
  border: 1px solid var(--accent-dim);
  font-family: var(--serif);
  font-style: italic;
  font-size: 12px;
  letter-spacing: 0.15em;
  color: var(--accent-br);
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.25s var(--ease);
}
.ref-link:hover { background: rgba(212,168,106,0.08); border-color: var(--accent); color: var(--fg); }
.ref-link .arrow { font-style: normal; }

/* ============================
   LIGHTBOX
   ============================ */
.lightbox {
  position: fixed; inset: 0;
  background: rgba(8,5,3,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity 0.4s var(--ease);
  z-index: 200;
  padding: 32px;
}
.lightbox.open { opacity: 1; pointer-events: auto; }
.lightbox-inner {
  position: relative;
  max-width: min(1200px, 92vw);
  max-height: 90vh;
  display: flex; flex-direction: column; align-items: center;
  gap: 14px;
}
.lightbox-frame {
  background: #ffffff;
  padding: 14px;
  border: 1px solid var(--accent);
  box-shadow: 0 60px 160px rgba(0,0,0,0.7);
  position: relative;
  max-width: 100%;
  max-height: calc(90vh - 80px);
}
.lightbox-frame::before, .lightbox-frame::after {
  content: '';
  position: absolute;
  width: 20px; height: 20px;
  border: 1px solid var(--accent);
}
.lightbox-frame::before { top: -6px; left: -6px; border-right: none; border-bottom: none; }
.lightbox-frame::after  { bottom: -6px; right: -6px; border-left: none; border-top: none; }
.lightbox-frame img {
  display: block;
  max-width: 100%;
  max-height: calc(90vh - 110px);
  width: auto; height: auto;
}
.lightbox-caption {
  font-family: var(--serif);
  font-style: italic;
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--accent-br);
  text-transform: uppercase;
  text-align: center;
}
.lightbox-close {
  position: absolute;
  top: -16px; right: -16px;
  width: 36px; height: 36px;
  background: var(--bg-card);
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  font-family: var(--serif);
  font-size: 18px;
  z-index: 2;
}
.lightbox-close:hover { color: var(--fg); background: var(--bg-accent); }
body.lb-open { overflow: hidden; }

/* ============================
   SEARCH / CONCIERGE OVERLAY (kept as overlays — not chapter content)
   ============================ */
.scrim {
  position: fixed; inset: 0;
  background: rgba(8,5,3,0.78);
  backdrop-filter: blur(10px);
  opacity: 0; pointer-events: none;
  transition: opacity 0.3s var(--ease);
  z-index: 90;
}
.scrim.open { opacity: 1; pointer-events: auto; }
.overlay-panel {
  position: fixed; top: 0; left: 50%; transform: translate(-50%, -100%);
  width: min(560px, 94vw);
  background: var(--bg-card);
  border: 1px solid var(--accent-dim);
  border-top: none;
  padding: 48px 32px 32px;
  z-index: 100;
  max-height: 88vh; overflow-y: auto;
  transition: transform 0.4s var(--ease-soft);
}
.overlay-panel.open { transform: translate(-50%, 0); }
.overlay-panel .close { position: absolute; top: 12px; right: 12px; }
.overlay-panel .kicker { font-family: var(--serif); font-style: italic; font-size: 11px; letter-spacing: 0.3em; color: var(--accent); text-transform: uppercase; margin-bottom: 8px; }
.overlay-panel h3 { font-family: var(--serif-display); font-size: 24px; font-weight: 400; letter-spacing: 0.05em; color: var(--fg); margin-bottom: 16px; }
.overlay-panel input[type="text"] {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
  font-family: var(--serif-jp);
  font-size: 18px;
  color: var(--fg);
  outline: none;
  transition: border-color 0.25s var(--ease);
}
.overlay-panel input[type="text"]:focus { border-color: var(--accent); }
.overlay-panel input[type="text"]::placeholder { color: var(--fg-muted); font-style: italic; }
.overlay-panel .body { padding-top: 16px; }
.overlay-panel .body p { font-family: var(--serif-jp); color: var(--fg-soft); font-size: 14px; line-height: 1.85; }
.overlay-panel .line-info { border-top: 1px dashed var(--accent-dim); padding-top: 18px; margin-top: 18px; }
.overlay-panel .line-info .label { font-family: var(--serif); font-style: italic; font-size: 10px; letter-spacing: 0.25em; text-transform: uppercase; color: var(--accent); margin-bottom: 6px; display: block; }
.overlay-panel .line-info a { color: var(--fg); border-bottom: 1px solid var(--accent); padding-bottom: 2px; }