/* ============================================================
   Shared chrome — nav + footer
   ============================================================ */

/* ——— TOP NAV ——— */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(237, 229, 211, 0.88);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--rule);
}
.nav-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 40px;
  padding: 18px var(--gutter);
}
.nav-brand {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  color: var(--sumi);
}
.brand-mark {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  color: var(--sumi);
}
.brand-text { line-height: 1.15; }
.brand-ja { font-family: var(--serif); font-weight: 500; font-size: 18px; letter-spacing: 0.14em; }
.brand-en { font-family: var(--sans); font-size: 9px; letter-spacing: 0.32em; color: var(--muted); margin-top: 2px; text-transform: uppercase; }

.nav-list {
  display: flex;
  gap: 0;
  justify-self: center;
  flex-wrap: wrap;
}
.nav-item {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  padding: 6px 14px;
  line-height: 1.1;
  position: relative;
}
.nav-item + .nav-item::before {
  content: "";
  position: absolute; left: 0; top: 50%;
  transform: translateY(-50%);
  width: 1px; height: 14px;
  background: var(--rule);
}
.nav-ja { font-family: var(--serif); font-size: 13px; letter-spacing: 0.14em; }
.nav-en { font-family: var(--sans); font-size: 8px; letter-spacing: 0.28em; color: var(--muted); margin-top: 3px; }
.nav-item.is-current .nav-ja { color: var(--hinoki-2); }
.nav-item.is-current .nav-en { color: var(--hinoki-2); }
.nav-item:hover .nav-ja { color: var(--hinoki-2); }

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif);
  font-size: 13px;
  letter-spacing: 0.16em;
  padding: 10px 18px;
  border: 1px solid var(--sumi);
  background: var(--sumi);
  color: var(--kinari);
  transition: background 0.25s ease, color 0.25s ease;
}
.nav-cta:hover { background: transparent; color: var(--sumi); }

@media (max-width: 980px) {
  .nav-list { display: none; }
  .nav-inner { grid-template-columns: auto 1fr auto; }
}

/* ——— FOOTER ——— */
.site-footer {
  background: var(--sumi);
  color: var(--kinari);
  padding: 96px 0 48px;
  margin-top: 120px;
  background-image:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='320' height='320'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' seed='3'/><feColorMatrix values='0 0 0 0 0.95 0 0 0 0 0.90 0 0 0 0 0.80 0 0 0 0.04 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  grid-template-areas:
    "brand tagline"
    "grid grid"
    "meta meta";
  gap: 48px 80px;
}
.footer-brand { grid-area: brand; display: flex; gap: 16px; align-items: flex-start; color: var(--kinari); }
.footer-brand .brand-ja { font-size: 24px; }
.footer-brand .brand-en { color: rgba(237,229,211,0.55); }
.footer-tagline {
  grid-area: tagline;
  font-family: var(--serif);
  font-size: 20px;
  line-height: 2;
  letter-spacing: 0.1em;
  align-self: center;
}
.footer-grid {
  grid-area: grid;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  padding-top: 48px;
  border-top: 1px solid rgba(237,229,211,0.22);
}
.footer-grid .f-head {
  font-family: var(--sans);
  font-size: 10px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--hinoki-3);
  margin-bottom: 16px;
}
.footer-grid p { font-size: 13px; line-height: 2; color: rgba(237,229,211,0.82); margin-bottom: 10px; }

.footer-meta {
  grid-area: meta;
  display: flex;
  justify-content: space-between;
  padding-top: 40px;
  border-top: 1px solid rgba(237,229,211,0.22);
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(237,229,211,0.55);
}

@media (max-width: 860px) {
  .footer-inner { grid-template-columns: 1fr; grid-template-areas: "brand" "tagline" "grid" "meta"; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-meta { flex-direction: column; gap: 8px; }
}