:root {
  --bg: #f6f3ee;
  --paper: #fffdf9;
  --fg: #1d1b19;
  --muted: #7a736b;
  --line: #e6e0d6;
  --accent: #1d1b19;
  --accent-fg: #fffdf9;
  --rose: #c98b7f;
  --serif: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --latin: "Cormorant Garamond", "Noto Serif JP", serif;
  --sans: "Zen Kaku Gothic New", "Hiragino Sans", "Yu Gothic", system-ui, sans-serif;
  --radius: 14px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #151412; --paper: #1d1c1a; --fg: #efe9e1; --muted: #a39b91;
    --line: #2f2c28; --accent: #efe9e1; --accent-fg: #151412; --rose: #d9a294;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font-family: var(--sans); line-height: 1.7; letter-spacing: .02em;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { max-width: 100%; }
.wrap { max-width: 1280px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 48px); }

/* ---------- top bar ---------- */
.site-header { position: relative; overflow: hidden; }
.site-header::before {
  content: ""; position: absolute; inset: -20% -10% auto auto; width: 60vw; height: 60vw; max-width: 760px; max-height: 760px;
  background: radial-gradient(closest-side, rgba(201, 139, 127, .18), transparent 70%); pointer-events: none;
}
.topbar { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 22px; padding-bottom: 22px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 50%; border: 1px solid var(--fg);
  display: grid; place-items: center; font-family: var(--latin); font-style: italic; font-size: 1.05rem; line-height: 1;
}
.brand-text { font-family: var(--latin); font-size: .95rem; letter-spacing: .28em; }
.nav { display: flex; align-items: center; gap: clamp(14px, 2.4vw, 28px); font-size: .86rem; }
.nav a { text-decoration: none; position: relative; padding: 4px 0; }
.nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: right; transition: transform .3s ease; }
.nav a:hover::after { transform: scaleX(1); transform-origin: left; }
.nav .nav-x { border: 1px solid var(--fg); border-radius: 999px; padding: 6px 16px; }
.nav .nav-x::after { display: none; }
.nav .nav-x:hover { background: var(--fg); color: var(--bg); }

/* ---------- hero ---------- */
.hero {
  position: relative; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: clamp(24px, 5vw, 72px); align-items: center; padding-top: clamp(16px, 4vw, 48px); padding-bottom: clamp(40px, 6vw, 80px);
}
.eyebrow { margin: 0 0 18px; display: flex; align-items: center; gap: 12px; }
.eyebrow span { font-family: var(--latin); font-style: italic; font-size: 1.05rem; letter-spacing: .08em; color: var(--rose); }
.eyebrow::before { content: ""; width: 40px; height: 1px; background: var(--rose); }
h1 {
  margin: 0; font-family: var(--serif); font-weight: 600;
  font-size: clamp(2.2rem, 4.4vw, 4.2rem); line-height: 1.25; letter-spacing: .06em; white-space: nowrap;
}
.lead { margin: 22px 0 0; max-width: 30em; color: var(--muted); font-size: clamp(.9rem, 1.2vw, 1rem); line-height: 2; }
.stats { display: flex; gap: clamp(20px, 4vw, 44px); margin: 30px 0 0; padding: 18px 0 0; border-top: 1px solid var(--line); max-width: 30em; }
.stats div { margin: 0; }
.stats dt { font-size: .72rem; color: var(--muted); letter-spacing: .14em; }
.stats dd { margin: 2px 0 0; font-family: var(--serif); font-size: clamp(1.3rem, 2.2vw, 1.7rem); font-weight: 500; }
.cta {
  display: inline-flex; align-items: center; gap: 14px; margin-top: 30px; padding: 14px 26px;
  background: var(--accent); color: var(--accent-fg); border-radius: 999px; text-decoration: none; font-size: .92rem; letter-spacing: .1em;
  transition: transform .25s ease, box-shadow .25s ease;
}
.cta span { transition: transform .25s ease; }
.cta:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(29, 27, 25, .18); }
.cta:hover span { transform: translateX(4px); }

.hero-faces { position: relative; display: grid; grid-template-columns: 1.25fr 1fr; grid-template-rows: auto auto; gap: clamp(10px, 1.4vw, 18px); }
.hf { margin: 0; position: relative; border-radius: var(--radius); overflow: hidden; background: var(--line); box-shadow: 0 24px 48px -24px rgba(60, 40, 30, .35); }
.hf img { display: block; width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 5; }
.hf-1 { grid-row: 1 / span 2; }
.hf-1 img { aspect-ratio: auto; height: 100%; }
.hf-2 { margin-top: 18%; }
.hf figcaption {
  position: absolute; left: 10px; bottom: 10px; padding: 3px 12px; border-radius: 999px;
  background: rgba(255, 253, 249, .82); color: #1d1b19; font-size: .72rem; letter-spacing: .1em; backdrop-filter: blur(6px);
}

/* ---------- toolbar / chips ---------- */
.toolbar {
  position: sticky; top: 0; z-index: 20; margin: 0 calc(-1 * clamp(16px, 4vw, 48px)); padding: 16px clamp(16px, 4vw, 48px) 14px;
  background: color-mix(in srgb, var(--bg) 86%, transparent); backdrop-filter: saturate(1.4) blur(12px); -webkit-backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid var(--line); display: flex; flex-direction: column; gap: 12px;
}
.toolbar-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.section-title { margin: 0; font-family: var(--latin); font-weight: 500; font-style: italic; font-size: 1.7rem; line-height: 1; letter-spacing: .04em; }
.section-title span { font-family: var(--sans); font-style: normal; font-size: .74rem; color: var(--muted); letter-spacing: .14em; margin-left: 14px; }
.count { margin: 0; color: var(--muted); font-size: .8rem; letter-spacing: .06em; }
.filters { display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none; -webkit-overflow-scrolling: touch; }
.filters::-webkit-scrollbar { display: none; }
.chip {
  flex: none; font: inherit; font-size: .86rem; cursor: pointer; letter-spacing: .06em;
  background: transparent; color: var(--fg); border: 1px solid var(--line); border-radius: 999px; padding: 7px 18px;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}
.chip:hover { border-color: var(--fg); }
.chip[aria-pressed="true"] { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
.chip small { font-size: .72rem; opacity: .6; margin-left: 6px; font-variant-numeric: tabular-nums; }
.chip:focus-visible, .btn:focus-visible, .dl:focus-visible, .cta:focus-visible, .thumb-btn:focus-visible { outline: 2px solid var(--rose); outline-offset: 2px; }

/* ---------- grid / cards ---------- */
.grid {
  list-style: none; margin: 22px 0 0; padding: 0;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: clamp(12px, 1.6vw, 22px);
}
.card { display: flex; flex-direction: column; gap: 8px; }
.card .thumb-btn {
  padding: 0; border: 0; background: var(--line); cursor: zoom-in; display: block; width: 100%;
  border-radius: var(--radius); overflow: hidden; position: relative;
}
.card img { display: block; width: 100%; height: auto; transition: transform .6s cubic-bezier(.2, .7, .2, 1); }
.card .thumb-btn::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,.18), transparent 40%); opacity: 0; transition: opacity .3s ease; }
.card:hover img { transform: scale(1.04); }
.card:hover .thumb-btn::after { opacity: 1; }
.card .meta { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 0 2px; }
.card .label { font-size: .76rem; color: var(--muted); letter-spacing: .12em; }
.dl {
  display: inline-flex; align-items: center; gap: 4px; text-decoration: none; font-size: .72rem; letter-spacing: .08em;
  color: var(--fg); border: 1px solid var(--line); border-radius: 999px; padding: 3px 10px 3px 8px; transition: all .2s ease;
}
.dl:hover { background: var(--fg); color: var(--bg); border-color: var(--fg); }

.btn {
  font: inherit; font-size: .86rem; text-decoration: none; cursor: pointer; letter-spacing: .08em;
  display: inline-block; text-align: center; white-space: nowrap;
  background: transparent; color: var(--fg); border: 1px solid var(--fg); border-radius: 999px; padding: 9px 26px;
}
.btn:hover { background: var(--fg); color: var(--bg); }
.btn-primary { background: #fffdf9; color: #1d1b19; border-color: #fffdf9; }
.btn-primary:hover { background: var(--rose); border-color: var(--rose); color: #fff; }
.more-wrap { text-align: center; margin: 32px 0; }
.empty { text-align: center; color: var(--muted); padding: 40px 0; }

/* ---------- tips / rules ---------- */
.tips, .rules { margin: 64px 0 24px; padding: 28px clamp(20px, 3vw, 36px); background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); }
.rules { margin-top: 0; margin-bottom: 56px; }
.tips h2, .rules h2, .info-dialog h2 { margin: 0 0 12px; font-family: var(--serif); font-weight: 600; font-size: 1.2rem; letter-spacing: .06em; }
.tips ul, .rules ul { margin: 0 0 12px; padding-left: 1.2em; }
.tips ul { margin-bottom: 0; }
.rules .note { margin: 0; color: var(--muted); font-size: .88rem; word-break: break-all; }

.site-footer { border-top: 1px solid var(--line); padding: 28px 0 40px; color: var(--muted); font-size: .84rem; letter-spacing: .06em; }
.site-footer a { text-decoration: none; border-bottom: 1px solid var(--line); }

/* ---------- lightbox ---------- */
.lightbox { position: fixed; inset: 0; z-index: 100; background: rgba(18, 16, 14, .92); display: flex; align-items: center; justify-content: center; }
.lightbox[hidden] { display: none; }
.lb-figure { margin: 0; max-width: 92vw; max-height: 94vh; display: flex; flex-direction: column; align-items: center; gap: 14px; }
.lb-figure img { max-width: 92vw; max-height: calc(94vh - 64px); width: auto; height: auto; object-fit: contain; border-radius: 10px; }
.lb-figure figcaption { display: flex; align-items: center; gap: 16px; color: #eee; font-size: .86rem; letter-spacing: .06em; }
.lb-btn { position: absolute; background: rgba(255, 255, 255, .1); color: #fff; border: 0; cursor: pointer; width: 46px; height: 46px; border-radius: 50%; font-size: 1.6rem; line-height: 1; backdrop-filter: blur(6px); }
.lb-btn:hover { background: rgba(255, 255, 255, .24); }
.lb-close { top: 14px; right: 14px; }
.lb-prev { left: 14px; top: 50%; transform: translateY(-50%); }
.lb-next { right: 14px; top: 50%; transform: translateY(-50%); }

/* ---------- dialog ---------- */
.info-dialog { max-width: 560px; width: calc(100% - 32px); padding: 28px 28px 22px; border: 1px solid var(--line); border-radius: 18px; background: var(--paper); color: inherit; box-shadow: 0 30px 80px -20px rgba(0,0,0,.35); }
.info-dialog::backdrop { background: rgba(20, 16, 12, .5); backdrop-filter: blur(3px); }
.info-dialog h2 { padding-right: 32px; }
.info-dialog ul { margin: 0 0 12px; padding-left: 1.2em; }
.info-dialog .note { margin: 0; font-size: .88rem; word-break: break-all; opacity: .8; }
.dlg-close { position: absolute; top: 10px; right: 12px; font-size: 1.6rem; line-height: 1; background: none; border: 0; color: inherit; cursor: pointer; padding: 4px 8px; }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; }
  .hero-faces { max-width: 520px; }
}
@media (max-width: 560px) {
  .topbar { padding-top: 16px; padding-bottom: 12px; }
  .brand-text { display: none; }
  .nav { gap: 12px; font-size: .78rem; }
  .nav .nav-x { padding: 5px 12px; }
  .hero { padding-top: 8px; gap: 22px; padding-bottom: 36px; }
  .eyebrow { margin-bottom: 12px; }
  .lead { margin-top: 14px; line-height: 1.9; }
  .stats { margin-top: 20px; padding-top: 14px; }
  .cta { margin-top: 22px; padding: 12px 22px; }
  .hero-faces { grid-template-columns: 1.3fr 1fr; gap: 8px; }
  .hf { border-radius: 12px; }
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 10px; }
  .section-title { font-size: 1.45rem; }
  .section-title span { display: none; }
  .chip { padding: 6px 14px; font-size: .82rem; }
  .card .label { font-size: .7rem; letter-spacing: .06em; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }