/* ===========================================================================
   醸誌 KAMOSHI — Header / Footer template parts
   出典: design_handoff_kamoshi_site/醸誌 トップページ.html の NAV / FOOTER ブロック
   template-parts/site-header.php ・ template-parts/site-footer.php で使用
   =========================================================================== */

/* ── NAV ───────────────────────────────────────────── */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px var(--gutter);
  background: rgba(252,251,251,0.86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-washi);
}
.nav-logo { height: 30px; }
.nav-right { display: flex; align-items: center; gap: var(--space-6); }
.nav-links { display: flex; gap: var(--space-6); list-style: none; align-items: center; }
.nav-links a {
  font-family: var(--font-body); font-size: var(--fs-small);
  letter-spacing: 0.06em; color: var(--sumi); text-decoration: none;
  transition: color var(--dur-base) var(--ease-out);
}
.nav-links a:hover { color: var(--accent); }
.nav-links li.current-menu-item > a,
.nav-links a[aria-current="page"] { color: var(--accent); }
.nav-search-wrap { position: relative; }
.nav-search {
  display: grid; place-items: center; width: 38px; height: 38px;
  color: var(--ai-mid); border: 1px solid var(--line-washi);
  border-radius: var(--radius-pill); background: transparent;
  cursor: pointer; transition: background var(--dur-base) var(--ease-out);
}
.nav-search:hover { background: var(--sora-soft); }
.nav-search svg { width: 17px; height: 17px; stroke-width: 1.5; }
.nav-search-form {
  position: absolute; top: calc(100% + 10px); right: 0; z-index: 95;
  display: none; align-items: center;
  background: var(--shiro); border: 1px solid var(--line-washi); border-radius: var(--radius-md);
  box-shadow: var(--shadow-md); padding: 4px;
}
.nav-search-wrap.is-open .nav-search-form { display: flex; }
.nav-search-form input {
  width: 220px; max-width: 60vw; border: none; outline: none; background: transparent;
  font-family: var(--font-body); font-size: var(--fs-small); color: var(--sumi); padding: 8px 10px;
}
.nav-cta {
  font-family: var(--font-body); font-size: var(--fs-small);
  letter-spacing: 0.1em; color: #fff !important;
  background: var(--spot); padding: 9px 22px; border-radius: var(--radius-sm);
  text-decoration: none; transition: background var(--dur-base) var(--ease-out);
}
.nav-cta:hover { background: var(--spot-hover); }

/* ── ハンバーガー（モバイル用） ───────────────────── */
.nav-toggle {
  display: none; width: 38px; height: 38px; place-items: center;
  border: 1px solid var(--line-washi); border-radius: var(--radius-pill);
  background: transparent; cursor: pointer; padding: 0;
}
.nav-toggle svg { width: 18px; height: 18px; stroke-width: 1.6; color: var(--ai-mid); }
.nav-toggle .icon-close { display: none; }

@media (max-width: 900px) {
  .nav-toggle { display: grid; order: -1; }

  .nav-links {
    position: absolute; top: 100%; left: 0; right: 0; height: calc(100vh - 59px); z-index: 90;
    background: var(--shiro);
    flex-direction: column; align-items: flex-start;
    padding: clamp(28px, 6vw, 44px) var(--gutter);
    gap: var(--space-6);
    opacity: 0; visibility: hidden; transform: translateY(-8px); pointer-events: none;
    transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out), visibility var(--dur-base);
  }
  .nav-links a { font-family: var(--font-heading); font-size: var(--fs-h4); }

  body.nav-open .nav-links {
    opacity: 1; visibility: visible; transform: translateY(0); pointer-events: auto;
  }
  body.nav-open .nav-toggle .icon-menu { display: none; }
  body.nav-open .nav-toggle .icon-close { display: grid; place-items: center; }
  body.nav-open { overflow: hidden; }
}

/* ── FOOTER ────────────────────────────────────────── */
.site-footer { background: #0c1d39; color: var(--sora); padding: clamp(48px, 6vw, 72px) 0 32px; }
.footer-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 40px; padding-bottom: var(--space-7); border-bottom: 1px solid var(--border-ink); margin-bottom: var(--space-6); flex-wrap: wrap; }
.footer-logo { height: 34px; filter: invert(1) brightness(1.6); }
.footer-tag { display: block; margin-top: 14px; font-family: var(--font-latin); font-style: italic; font-size: var(--fs-caption); letter-spacing: 0.24em; color: var(--mizu-asagi); }
.footer-nav { position: static; display: flex; gap: clamp(40px, 6vw, 72px); }
.footer-nav h4 { font-family: var(--font-latin); font-size: var(--fs-caption); font-weight: var(--fw-semibold); letter-spacing: 0.22em; text-transform: uppercase; color: var(--ukiyo-blue); margin-bottom: 16px; }
.footer-nav ul { list-style: none; display: flex; flex-direction: column; gap: 11px; }
.footer-nav a { font-size: var(--fs-small); color: rgba(186,215,217,0.92); text-decoration: none; letter-spacing: 0.04em; transition: color var(--dur-base) var(--ease-out); }
.footer-nav a:hover { color: var(--shiro); }
.footer-bottom { display: flex; justify-content: space-between; gap: 16px; font-family: var(--font-latin); font-size: var(--fs-caption); letter-spacing: 0.1em; color: rgba(186,215,217,0.55); flex-wrap: wrap; }

@media (max-width: 560px) {
  .footer-top { flex-direction: column; }
}