/* サイト全体の枠：ヘッダーのナビ（大きく開くメニュー）・フッターのサイトマップ・上端の帯・言語の切り替え（K3）
   site.js が全ページに差し込む。ページの HTML に link が無いときは site.js が site-responsive.css の前に読み込む。
   画面幅の切り替えは site-responsive.css の「K3」の区切り */

:root {
  --gnav-h: 4.5rem;
}

/* ---- ヘッダー ---- */
.gnav {
  position: fixed;
  z-index: 80;
  top: 0;
  left: 0;
  width: 100%;
  color: var(--paper);
  font-family: var(--gothic);
  line-height: 1.6;
}
.gnav a { color: inherit; }
.gnav-bar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  width: min(calc(100% - (var(--gutter) * 2)), var(--shell-max));
  min-height: var(--gnav-h);
  margin: 0 auto;
}
/* 地は疑似要素に置く（backdrop-filter を .gnav に付けると、中の固定配置のメニューの基準が変わるため） */
.gnav::before {
  position: absolute;
  z-index: 1;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--gnav-h);
  border-bottom: 1px solid transparent;
  background: linear-gradient(to bottom, rgb(11 7 18 / .94), rgb(11 7 18 / .5) 70%, transparent);
  content: "";
  pointer-events: none;
  transition: background .3s var(--ease), border-color .3s var(--ease);
}
.gnav.is-scrolled::before,
.gnav.is-open::before {
  border-color: var(--line);
  background: rgb(11 7 18 / .93);
  -webkit-backdrop-filter: blur(1.1rem) saturate(1.25);
  backdrop-filter: blur(1.1rem) saturate(1.25);
}
.gnav-brand {
  display: grid;
  flex: none;
  gap: .05rem;
  text-decoration: none;
  line-height: 1.2;
}
.gnav-brand-name {
  font-family: var(--mincho);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: .14em;
  white-space: nowrap;
}
.gnav-brand-sub {
  color: rgb(245 195 75 / .72);
  font-size: .54rem;
  font-weight: 700;
  letter-spacing: .26em;
  white-space: nowrap;
}
.gnav-primary {
  display: flex;
  align-items: center;
  gap: .1rem;
  margin: 0 0 0 auto;
  padding: 0;
  list-style: none;
}
.gnav-primary-link {
  position: relative;
  display: block;
  padding: .55rem .72rem;
  color: rgb(255 246 232 / .84) !important;
  font-size: .76rem;
  letter-spacing: .07em;
  text-decoration: none;
  white-space: nowrap;
  transition: color .2s var(--ease);
}
.gnav-primary-link::after {
  position: absolute;
  right: .72rem;
  bottom: .28rem;
  left: .72rem;
  height: 1px;
  background: var(--gold);
  content: "";
  opacity: .9;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s var(--ease);
}
.gnav-primary-link:hover,
.gnav-primary-link[aria-current="page"] { color: var(--paper) !important; }
.gnav-primary-link:hover::after,
.gnav-primary-link[aria-current="page"]::after { transform: scaleX(1); }
.gnav-primary-link[aria-current="page"] { color: var(--gold) !important; }
.gnav-tools {
  display: flex;
  flex: none;
  align-items: center;
  gap: .55rem;
}
.gnav-primary + .gnav-tools { margin-left: .4rem; }

/* 日本語／English（部品 lang の見た目） */
.gnav .part-lang,
.site-footer .part-lang {
  --part-bg: rgb(11 7 18 / .5);
  --part-line: var(--line);
  --part-fg: rgb(255 246 232 / .7);
  --part-accent: rgb(245 195 75 / .16);
  --part-accent-fg: var(--gold);
  --part-focus: var(--kitsunebi);
  padding: 2px;
}
.gnav .part-lang__button {
  min-height: 1.95rem;
  padding: .15rem .62rem;
  font-size: .66rem;
  letter-spacing: .06em;
}
.gnav .part-lang__button[aria-pressed="true"] { box-shadow: inset 0 0 0 1px rgb(245 195 75 / .45); font-weight: 700; }
.gnav-sound,
.gnav-menu {
  display: inline-flex;
  flex: none;
  align-items: center;
  justify-content: center;
  min-height: 2.35rem;
  border-radius: 999px;
  color: var(--paper);
  font: inherit;
  letter-spacing: .08em;
  cursor: pointer;
  transition: border-color .2s var(--ease), background .2s var(--ease), color .2s var(--ease);
}
.gnav-sound {
  padding: .3rem .72rem;
  border: 1px solid var(--line);
  background: rgb(11 7 18 / .45);
  font-size: .66rem;
}
.gnav-sound:hover { border-color: rgb(255 246 232 / .4); }
.gnav-sound[aria-pressed="true"] { border-color: rgb(143 216 255 / .6); color: var(--kitsunebi); }
.gnav-menu {
  gap: .6rem;
  padding: .35rem 1rem .35rem .85rem;
  border: 1px solid rgb(245 195 75 / .6);
  background: linear-gradient(135deg, rgb(245 195 75 / .14), rgb(143 216 255 / .05));
  font-size: .74rem;
  font-weight: 700;
}
.gnav-menu:hover { border-color: var(--lantern); background: linear-gradient(135deg, rgb(245 195 75 / .26), rgb(143 216 255 / .1)); }
.gnav-menu-lines { position: relative; display: block; width: .95rem; height: .5rem; }
.gnav-menu-lines i {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transition: transform .3s var(--ease), top .3s var(--ease);
}
.gnav-menu-lines i:first-child { top: 0; }
.gnav-menu-lines i:last-child { top: calc(100% - 1px); }
.gnav.is-open .gnav-menu-lines i:first-child { top: calc(50% - .5px); transform: rotate(45deg); }
.gnav.is-open .gnav-menu-lines i:last-child { top: calc(50% - .5px); transform: rotate(-45deg); }
.gnav-menu-close,
.gnav.is-open .gnav-menu-open { display: none; }
.gnav.is-open .gnav-menu-close { display: inline; }

/* ---- 大きく開くメニュー ---- */
.gnav-backdrop {
  position: fixed;
  z-index: 0;
  inset: 0;
  background: rgb(6 3 10 / .6);
  opacity: 0;
  transition: opacity .28s var(--ease);
}
.gnav-panel {
  position: fixed;
  z-index: 1;
  top: calc(var(--site-banner-offset, 0px) + var(--gnav-h));
  right: 0;
  left: 0;
  max-height: calc(100vh - var(--gnav-h) - var(--site-banner-offset, 0px));
  max-height: calc(100dvh - var(--gnav-h) - var(--site-banner-offset, 0px));
  overflow-y: auto;
  overscroll-behavior: contain;
  border-bottom: 1px solid rgb(245 195 75 / .26);
  background:
    radial-gradient(ellipse at 88% 0%, rgb(143 216 255 / .08), transparent 42%),
    radial-gradient(ellipse at 6% 100%, rgb(232 68 58 / .09), transparent 46%),
    linear-gradient(180deg, rgb(26 14 20 / .985), rgb(11 7 18 / .985));
  box-shadow: 0 2.2rem 4rem rgb(0 0 0 / .5);
  opacity: 0;
  transform: translateY(-.5rem);
  transition: opacity .28s var(--ease), transform .28s var(--ease);
}
.gnav-panel[hidden],
.gnav-backdrop[hidden] { display: none; }
.gnav.is-open .gnav-panel { opacity: 1; transform: none; }
.gnav.is-open .gnav-backdrop { opacity: 1; }
html.gnav-open { overflow: hidden; }
.gnav-panel-inner {
  width: min(calc(100% - (var(--gutter) * 2)), var(--shell-max));
  margin: 0 auto;
  padding: 2.4rem 0 1.8rem;
}
.gnav-groups {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 2rem 1.9rem;
}
.gnav-group-title,
.footer-map-group-title {
  display: flex;
  align-items: baseline;
  gap: .6rem;
  margin: 0;
  color: var(--gold);
  font-family: var(--mincho);
  font-weight: 700;
  letter-spacing: .12em;
}
.gnav-group-title {
  margin-bottom: .8rem;
  padding-bottom: .7rem;
  border-bottom: 1px solid rgb(245 195 75 / .22);
  font-size: .95rem;
}
.gnav-group-no,
.footer-map-group-no {
  color: rgb(245 195 75 / .55);
  font-family: var(--gothic);
  font-size: .6rem;
  letter-spacing: .16em;
}
.gnav-list,
.footer-map-list {
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
}
.gnav-list { gap: .1rem; }
.gnav-link {
  display: grid;
  gap: .08rem;
  margin: 0 -.6rem;
  padding: .48rem .6rem;
  border-radius: .3rem;
  text-decoration: none;
  transition: background .2s var(--ease);
}
.gnav-link:hover,
.gnav-link:focus-visible { background: rgb(245 195 75 / .08); }
.gnav-link-name {
  font-size: .9rem;
  font-weight: 700;
  letter-spacing: .04em;
  transition: color .2s var(--ease);
}
.gnav-link:hover .gnav-link-name { color: var(--lantern); }
.gnav-link[aria-current="page"] .gnav-link-name { color: var(--gold); }
.gnav-link[aria-current="page"] .gnav-link-name::before {
  display: inline-block;
  width: .3rem;
  height: .3rem;
  margin: 0 .45rem .15rem 0;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 .5rem var(--gold);
  content: "";
  vertical-align: middle;
}
.gnav-link-note {
  color: var(--muted);
  font-size: .7rem;
  letter-spacing: .02em;
  line-height: 1.55;
}
.gnav-link-tag {
  display: inline-block;
  margin-left: .45rem;
  padding: 0 .42rem;
  border: 1px solid rgb(255 178 94 / .6);
  border-radius: 999px;
  color: var(--lantern);
  font-size: .6rem;
  font-weight: 700;
  letter-spacing: .08em;
  line-height: 1.6;
  vertical-align: .12em;
}
.gnav-panel-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .8rem 1.4rem;
  margin-top: 2.2rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .74rem;
}
.gnav-home {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  color: var(--paper) !important;
  font-weight: 700;
  letter-spacing: .06em;
  text-decoration: none;
}
.gnav-home[aria-current="page"] { color: var(--gold) !important; }
.gnav-panel-foot .gnav-panel-lang { display: none; }
.gnav-panel-note { margin: 0 0 0 auto; }
.gnav-list li:has(> .is-feature) { grid-column: 1 / -1; }

/* ---- フッターのサイトマップ ---- */
.site-footer.has-footer-map {
  display: block;
  padding: clamp(3rem, 6vw, 4.5rem) max(var(--gutter), calc((100% - var(--shell-max)) / 2)) 2rem;
  border-top: 1px solid rgb(245 195 75 / .16);
  background: var(--night);
  color: var(--muted);
  font-size: .75rem;
  line-height: 1.75;
}
.footer-map {
  padding-bottom: 2rem;
  border-bottom: 1px solid rgb(245 195 75 / .16);
}
.footer-map-brand {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}
.site-footer .footer-map-name {
  color: var(--paper);
  font-family: var(--mincho);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-decoration: none;
  transition: color .25s var(--ease);
}
.site-footer .footer-map-name:hover,
.site-footer .footer-map-name:focus-visible { color: var(--lantern); }
.site-footer.has-footer-map .footer-map-sub {
  margin: .55rem 0 0;
  color: rgb(245 195 75 / .66);
  font-size: .56rem;
  font-weight: 700;
  letter-spacing: .2em;
  line-height: 1.7;
}
.footer-map-groups {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1.8rem 1.5rem;
}
.site-footer.has-footer-map .footer-map-group-title {
  margin: 0 0 .75rem;
  padding-bottom: .75rem;
  border-bottom: 1px solid rgb(245 195 75 / .16);
  color: var(--gold);
  font-size: .95rem;
  font-weight: 400;
  letter-spacing: .08em;
}
.footer-map-group-no { display: none; }
.footer-map-list { display: block; }
.site-footer .footer-map-link {
  display: block;
  padding-block: .6rem;
  color: rgb(255 246 232 / .74);
  font-size: .9rem;
  letter-spacing: .03em;
  text-decoration: none;
  transition: color .25s var(--ease);
}
.site-footer .footer-map-link .gnav-link-name { font: inherit; letter-spacing: inherit; }
.site-footer .footer-map-link:hover,
.site-footer .footer-map-link:focus-visible { color: var(--lantern); }
.site-footer .footer-map-link[aria-current="page"] { color: var(--gold); }
.site-footer .footer-map-link .gnav-link-tag { display: none; }
.site-footer .footer-map-index {
  display: inline-flex;
  align-items: center;
  gap: .8rem;
  color: var(--muted);
  font-size: .78rem;
}
.footer-map-index > [aria-hidden] { transition: transform .25s var(--ease); }
.footer-map-index:hover > [aria-hidden],
.footer-map-index:focus-visible > [aria-hidden] { transform: translateX(.15em); }
.site-footer.has-footer-map .footer-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: .4rem 2rem;
  padding-top: 1.4rem;
}
.site-footer.has-footer-map .footer-meta p {
  margin: 0;
  color: var(--muted);
  font-size: .72rem;
}
.site-footer.has-footer-map .footer-meta p:first-child { flex: 1 1 26rem; }

/* ---- 上端の帯（配信中・誕生日と周年・英語が無いページの断り） ---- */
.site-banners {
  position: relative;
  z-index: 81;
}
.site-banners[hidden] { display: none; }
.site-banner {
  --part-banner-bg: transparent;
  --part-banner-fg: var(--paper);
  --part-banner-pad: 0;
  --part-focus: var(--kitsunebi);
  position: relative;
  border-bottom: 1px solid rgb(245 195 75 / .28);
  background:
    radial-gradient(ellipse at 50% 0%, rgb(245 195 75 / .16), transparent 60%),
    linear-gradient(90deg, #1f0f19, #3B2038 50%, #1f0f19);
  color: var(--paper);
  font-family: var(--gothic);
}
.site-banner[hidden] { display: none; }
.site-banner-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: .3rem .9rem;
  width: min(calc(100% - (var(--gutter) * 2)), var(--shell-max));
  margin: 0 auto !important;
  padding: .6rem 2.6rem;
  font-size: .82rem;
  line-height: 1.6;
  text-align: center;
}
.site-banner-text { letter-spacing: .04em; }
.site-banner-mark {
  display: inline-block;
  width: .52rem;
  height: .66rem;
  border-radius: 58% 42% 58% 42% / 68% 68% 32% 32%;
  background: radial-gradient(ellipse at 48% 64%, #effaff 0 14%, var(--kitsunebi) 34%, #4D8DFF 76%);
  box-shadow: 0 0 .7rem var(--kitsunebi);
  transform: rotate(12deg);
}
.site-banner-link {
  display: inline-flex;
  align-items: center;
  min-height: 1.9rem;
  padding: .12rem .85rem;
  border: 1px solid rgb(245 195 75 / .72);
  border-radius: 999px;
  color: var(--gold) !important;
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-decoration: none;
  white-space: nowrap;
  gap: .3rem;
  transition: background .2s var(--ease), color .2s var(--ease);
}
.site-banner-link:hover { color: var(--night) !important; background: var(--gold); }
.site-banner .part-date-banner__close { color: rgb(255 246 232 / .72); }
.site-banner .part-date-banner__close:hover { color: var(--paper); }
.site-banner--live {
  border-color: rgb(232 68 58 / .5);
  background:
    radial-gradient(ellipse at 50% 0%, rgb(232 68 58 / .3), transparent 62%),
    linear-gradient(90deg, #22080f, #4a1220 50%, #22080f);
}
.site-banner-live {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .06rem .6rem;
  border-radius: 999px;
  color: #fff;
  background: var(--hi);
  font-size: .62rem;
  font-weight: 800;
  letter-spacing: .18em;
}
.site-banner-live::before {
  width: .38rem;
  height: .38rem;
  border-radius: 50%;
  background: #fff;
  content: "";
  animation: site-banner-pulse 1.6s ease-in-out infinite;
}
@keyframes site-banner-pulse { 50% { opacity: .25; } }
.site-banner--lang {
  border-color: rgb(143 216 255 / .3);
  background: linear-gradient(90deg, #0d1020, #182238 50%, #0d1020);
}
.site-banner--lang .site-banner-inner { font-size: .78rem; }
.site-banner-en { color: var(--muted); font-size: .74rem; }
.site-banner-en a { color: var(--kitsunebi); text-underline-offset: .2em; }