/* =============================================
   登場人物索引 — character-index.css
   国語辞典世界観
   ============================================= */

:root {
  --clr-paper:      #f4eed8;
  --clr-paper-dk:   #ede4c6;
  --clr-paper-deep: #d9cfa8;
  --clr-ink:        #1a1209;
  --clr-ink-mid:    #3d2f1a;
  --clr-ink-light:  #6b5740;
  --clr-vermilion:  #c0392b;
  --clr-cobalt:     #1a4a7a;
  --clr-gold:       #a07c3a;
  --clr-rule:       #b8a880;
  --clr-rule-lt:    #d4c490;
  --clr-muted:      #8a7055;

  --band-w: clamp(2.5rem, 5vw, 4rem);
  --pad:    clamp(1rem, 4vw, 3rem);

  --font-m: 'Shippori Mincho','Noto Serif JP','Yu Mincho',serif;
  --font-e: 'Libre Baskerville','IM Fell English',Georgia,serif;
  --ease:   cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-m);
  background: var(--clr-paper);
  color: var(--clr-ink);
  min-height: 100svh;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
}

/* ─── 横罫線テクスチャ ─── */
.paper-lines {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image: repeating-linear-gradient(
    to bottom, transparent 0, transparent 27px,
    rgba(139,110,60,0.07) 27px, rgba(139,110,60,0.07) 28px
  );
}

/* ─── 右端の装飾帯 ─── */
.side-band {
  position: fixed; top: 0; right: 0; z-index: 50;
  width: var(--band-w); height: 100svh;
  background: var(--clr-ink);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 0.5rem; writing-mode: vertical-rl;
}
.band-text { color: var(--clr-paper); font-size: clamp(0.9rem,1.5vw,1.1rem); letter-spacing: 0.2em; opacity: 0.9; }
.band-rule { display: block; width: 1px; height: clamp(3rem,8vw,6rem); background: var(--clr-rule); opacity: 0.5; }
.band-text-en { color: var(--clr-gold); font-family: var(--font-e); font-size: clamp(0.65rem,1vw,0.8rem); letter-spacing: 0.3em; }

/* ─── ヘッダー ─── */
header {
  position: sticky; top: 0; z-index: 100;
  background: var(--clr-ink);
  border-bottom: 3px solid var(--clr-vermilion);
  padding: clamp(0.55rem,1.5vw,0.85rem) var(--pad);
  padding-right: calc(var(--pad) + var(--band-w));
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
  box-shadow: 0 3px 14px rgba(0,0,0,0.28);
}
.header-center { text-align: center; }
.edition-label {
  font-family: var(--font-e);
  font-size: clamp(0.5rem,0.9vw,0.6rem);
  color: var(--clr-gold);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: 0.2rem;
}
.header-center h1 {
  font-size: clamp(0.95rem,2.5vw,1.3rem);
  font-weight: 800;
  color: var(--clr-paper);
  letter-spacing: 0.2em;
  line-height: 1.3;
}
.header-center h1 rt {
  font-size: 0.45em;
  color: rgba(240,232,204,0.55);
  font-weight: 400;
}
.home-btn {
  font-size: clamp(0.6rem,1.1vw,0.7rem);
  color: var(--clr-rule);
  text-decoration: none;
  border: 1px solid var(--clr-rule);
  border-radius: 2rem;
  padding: 0.28em 0.75em;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
  letter-spacing: 0.06em;
}
.home-btn:hover { background: var(--clr-rule); color: var(--clr-ink); }

/* ─── メイン ─── */
main {
  position: relative; z-index: 1; flex: 1;
  max-width: 64rem; margin: 0 auto;
  padding: clamp(1.5rem,4vw,3rem) var(--pad) clamp(2rem,6vw,4rem);
  padding-right: calc(var(--pad) + var(--band-w));
  width: 100%;
}

.page-desc {
  font-size: clamp(0.78rem,1.5vw,0.9rem);
  color: var(--clr-ink-mid);
  line-height: 2;
  letter-spacing: 0.06em;
  margin-bottom: clamp(1.5rem,4vw,2.5rem);
  padding-bottom: clamp(1rem,3vw,1.5rem);
  border-bottom: 1px solid var(--clr-rule);
  overflow-wrap: anywhere;
}

/* ─── キャラクターグリッド ─── */
.char-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 22rem), 1fr));
  gap: 1.5rem;
}

/* ─── キャラクターカード ─── */
.char-card {
  border: 1px solid var(--clr-rule);
  border-top: 3px solid var(--clr-gold);
  background: var(--clr-paper);
  transition: border-top-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
  min-width: 0;
}
.char-card:hover {
  border-top-color: var(--clr-vermilion);
  box-shadow: 3px 3px 0 var(--clr-rule-lt);
}

.char-link {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  padding: 1.25rem;
  gap: 0.85rem;
  position: relative;
  height: 100%;
}

.char-num {
  font-family: var(--font-e);
  font-size: clamp(0.55rem,0.9vw,0.65rem);
  color: var(--clr-rule);
  letter-spacing: 0.15em;
}

/* 写真 */
.char-photo-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 3/4;
  overflow: hidden;
  background: var(--clr-paper-dk);
}
.char-photo {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
  transition: transform 0.5s var(--ease), filter 0.4s;
  filter: brightness(0.97) saturate(0.95);
}
.char-card:hover .char-photo {
  transform: scale(1.04);
  filter: brightness(1) saturate(1.05);
}

/* フレームのコーナー装飾 */
.char-photo-frame {
  position: absolute; inset: 8px; pointer-events: none;
}
.frame-corner {
  position: absolute;
  width: 14px; height: 14px;
  border-color: var(--clr-gold);
  border-style: solid;
  opacity: 0.7;
  transition: opacity 0.2s, border-color 0.2s;
}
.char-card:hover .frame-corner { opacity: 1; border-color: var(--clr-vermilion); }
.tl { top: 0; left: 0;   border-width: 2px 0 0 2px; }
.tr { top: 0; right: 0;  border-width: 2px 2px 0 0; }
.bl { bottom: 0; left: 0;  border-width: 0 0 2px 2px; }
.br { bottom: 0; right: 0; border-width: 0 2px 2px 0; }

/* 情報エリア */
.char-info {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-width: 0;
}

.char-name {
  font-size: clamp(1.1rem,2.5vw,1.4rem);
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--clr-ink);
  line-height: 1.3;
  overflow-wrap: anywhere;
  transition: color 0.2s;
}
.char-name rt {
  font-size: 0.42em;
  color: var(--clr-ink-light);
  font-weight: 400;
  letter-spacing: 0.12em;
}
.char-card:hover .char-name { color: var(--clr-vermilion); }

.char-name-en {
  font-family: var(--font-e);
  font-style: italic;
  font-size: clamp(0.65rem,1.2vw,0.78rem);
  color: var(--clr-muted);
  letter-spacing: 0.15em;
  margin-top: -0.3rem;
}

/* データ */
.char-data { display: flex; flex-direction: column; gap: 0.2rem; }
.char-data-row {
  display: flex;
  gap: 0.6rem;
  font-size: clamp(0.7rem,1.3vw,0.8rem);
  border-bottom: 1px dotted var(--clr-rule-lt);
  padding-bottom: 0.2rem;
  min-width: 0;
}
.char-data-row dt { color: var(--clr-gold); letter-spacing: 0.1em; width: 3em; flex-shrink: 0; }
.char-data-row dd { color: var(--clr-ink-mid); overflow-wrap: anywhere; }

.char-quote {
  font-size: clamp(0.68rem,1.2vw,0.78rem);
  color: var(--clr-ink-light);
  line-height: 1.85;
  letter-spacing: 0.06em;
  border-left: 2px solid var(--clr-rule);
  padding-left: 0.6rem;
  font-style: italic;
  overflow-wrap: anywhere;
}

.char-arrow {
  align-self: flex-end;
  font-family: var(--font-e);
  font-size: clamp(0.8rem,1.3vw,1rem);
  color: var(--clr-rule);
  transition: color 0.2s, transform 0.2s var(--ease);
}
.char-card:hover .char-arrow { color: var(--clr-vermilion); transform: translateX(4px); }

/* ─── フッター ─── */
footer {
  position: relative; z-index: 1;
  text-align: center;
  padding: 1.25rem;
  border-top: 1px solid var(--clr-rule-lt);
  padding-right: calc(1.25rem + var(--band-w));
}
.footer-text {
  font-family: var(--font-e);
  font-style: italic;
  font-size: clamp(0.58rem,1vw,0.68rem);
  color: var(--clr-muted);
  letter-spacing: 0.1em;
}

/* ─── レスポンシブ ─── */
@media (max-width: 480px) {
  :root { --band-w: 0px; }
  .side-band { display: none; }
  header { grid-template-columns: 1fr; gap: 0.25rem; text-align: center; }
  .home-btn { justify-self: start; }
  .char-grid { grid-template-columns: 1fr; }
}

/* ─── Focus ─── */
:focus-visible { outline: 2px solid var(--clr-cobalt); outline-offset: 2px; }

/* ─── Reduced Motion ─── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}