@charset "UTF-8";
/* ============================================================
   frame.css（2026リニューアル）
   mother.dwt の外枠：ヘッダー／左カラム／SNS／フッター／スマホの予約帯
   ※ index.css の全体ルール（p 中央揃え・ul 横並び等）を打ち消すため、すべてクラスで指定する
============================================================ */

/* ---------- ヘッダー ---------- */
.bz-header {
  position: relative; display: flex; justify-content: space-between; align-items: flex-end; gap: 24px;
  padding: 20px 28px 14px; background: var(--bz-beige);
}
/* ヘッダー下の線：ページを開くと左から右へ走る */
.bz-header::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--bz-ink);
  transform-origin: left center; animation: bz-line-run 1.2s cubic-bezier(.6, 0, .2, 1) .15s both;
}
@keyframes bz-line-run { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@media (prefers-reduced-motion: reduce) { .bz-header::after { animation: none; } }
.bz-logo { display: block; flex: none; }
.bz-logo img { display: block; width: 280px; height: auto; }
.bz-nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 6px 22px; }
.bz-nav a:link, .bz-nav a:visited {
  padding: 4px 0; border-bottom: 2px solid transparent;
  font-size: 12.5px; font-weight: 500; letter-spacing: 0; color: var(--bz-ink);
}
.bz-nav a:hover { border-bottom-color: var(--bz-accent); opacity: 1; }
.bz-menu-toggle { display: none; position: absolute; opacity: 0; pointer-events: none; }
.bz-menu-button { display: none; }
/* キーボードで操作したとき、メニューボタンに枠を出す */
.bz-menu-toggle:focus-visible + .bz-menu-button { outline: 2px solid var(--bz-ink); outline-offset: 4px; }

/* ---------- 3カラム（PC）：左カラム｜本文｜SNS ----------
   --bz-main-left：画面の左端から本文の左端までの距離（トップでチラシとタイトルを画面の中央に置く計算に使う）
   ＝ 左右の余白28 ＋ 左カラム210 ＋ 間40 */
:root { --bz-main-left: 278px; }
.bz-layout {
  display: grid; grid-template-columns: 210px minmax(0, 1fr) 30px;
  grid-template-areas: "side main sns"; gap: 0 40px; align-items: start;
  padding: 22px 28px 48px;
}
.bz-main { grid-area: main; min-width: 0; }
.bz-main img { max-width: 100%; height: auto; }
.bz-main iframe, .bz-main video { max-width: 100%; }
.bz-side { grid-area: side; }
.bz-sns { grid-area: sns; }

/* ---------- 左カラム ---------- */
.bz-side p, .bz-footer p, .bz-spbar p { margin: 0; text-align: left; letter-spacing: 0; }
.bz-side > * + * { margin-top: 28px; }
.bz-side__block p { font-size: 11.5px; line-height: 1.6; }
.bz-side a:link, .bz-side a:visited { font-weight: 500; letter-spacing: 0; }

.bz-tour { display: flex; align-items: flex-end; gap: 12px; }
.bz-tour img { display: block; width: 92px; height: auto; box-shadow: 0 2px 6px rgba(0, 0, 0, .12); }
.bz-tour p a:link, .bz-tour p a:visited { border-bottom: 1px solid var(--bz-sub); }

.bz-guest { padding: 6px 0; }
.bz-side .bz-guest__who { font-size: 12px; font-weight: 700; }
.bz-side .bz-guest__what { font-size: 12px; font-weight: 500; line-height: 1.5; }
.bz-side .bz-guest__when { margin-top: 2px; font-size: 11px; line-height: 1.5; color: var(--bz-sub); }

.bz-list { display: block; margin: 0; padding: 0; list-style: none; }
.bz-list li { margin: 0; padding: 4px 0; font-size: 12px; list-style: none; }
.bz-list a::after { content: " →"; color: var(--bz-sub); }

.bz-banner img { display: block; max-width: 100%; height: auto; margin: 0 auto; }
/* 画像のないバナー（外部サイトへの文字リンク） */
.bz-side a.bz-banner-link:link, .bz-side a.bz-banner-link:visited {
  display: flex; justify-content: space-between; padding: 10px 12px;
  border: 1px solid var(--bz-rule); font-size: 12px; color: var(--bz-ink);
}
.bz-side a.bz-banner-link::after { content: "↗"; color: var(--bz-sub); }
.bz-side a.bz-banner-link:hover { border-color: var(--bz-accent); opacity: 1; }

/* 後援会（黒地のブロック）と研究生募集 */
.bz-join > * + * { margin-top: 10px; }
.bz-support { padding: 18px 18px 16px; background: var(--bz-ink); }
.bz-support p { color: var(--bz-beige); }
.bz-support .bz-support__label { font-size: 10px; letter-spacing: .2em; opacity: .6; }
.bz-support .bz-support__title { margin: 2px 0 8px; font-size: 15px; font-weight: 900; line-height: 1.35; letter-spacing: -.02em; }
.bz-support .bz-support__text { font-size: 11.5px; line-height: 1.7; opacity: .88; }
.bz-support a.bz-support__button:link, .bz-support a.bz-support__button:visited {
  display: block; margin-top: 12px; padding: 9px 6px; background: var(--bz-beige); color: var(--bz-ink);
  font-size: 12.5px; font-weight: 700; text-align: center;
}
.bz-support a.bz-support__button:hover { background: var(--bz-accent); opacity: 1; }

.bz-side a.bz-recruit:link, .bz-side a.bz-recruit:visited {
  display: flex; justify-content: space-between; align-items: center; gap: 8px;
  padding: 12px 14px; border: 1.5px solid var(--bz-ink); color: var(--bz-ink);
}
.bz-side a.bz-recruit:hover { border-color: var(--bz-accent); opacity: 1; }
.bz-recruit b { display: block; font-size: 13px; font-weight: 900; line-height: 1.4; }
.bz-recruit small { display: block; font-size: 10.5px; font-weight: 400; color: var(--bz-sub); }
.bz-side a.bz-recruit-sub:link, .bz-side a.bz-recruit-sub:visited {
  display: inline-block; font-size: 11px; color: var(--bz-sub); border-bottom: 1px solid var(--bz-rule);
}

/* ---------- SNS（右端の縦並び） ---------- */
.bz-sns { display: flex; flex-direction: column; align-items: center; gap: 12px; padding-top: 6px; }
.bz-sns a { display: block; }
.bz-sns img { display: block; width: 26px; height: 26px; }
/* 「FOLLOW US」：横書きの英字を90度回して縦に置く */
.bz-sns p { margin: 8px 0 0; writing-mode: vertical-rl; font-size: 10px; font-weight: 700; letter-spacing: .2em; color: var(--bz-sub); text-align: left; white-space: nowrap; }

/* ---------- フッター ---------- */
.bz-footer {
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 20px 28px; background: var(--bz-paper);
}
.bz-app { display: flex; align-items: center; gap: 12px; }
.bz-app img { display: block; width: 44px; height: 44px; }
.bz-footer .bz-app p { font-size: 11.5px; line-height: 1.6; }
.bz-app b { font-size: 13px; }
.bz-footer .bz-copy { font-size: 11px; color: var(--bz-sub); }

/* ---------- スマホの予約帯（PCでは出さない） ---------- */
.bz-spbar { display: none; }

/* ============================================================
   901〜1200px：小さめのノートPC（左カラムと余白を細くして、本文の幅を確保する）
============================================================ */
@media screen and (min-width: 901px) and (max-width: 1200px) {
  .bz-header { padding: 16px 20px 12px; }
  .bz-logo img { width: 230px; }
  .bz-nav { gap: 6px 16px; }
  :root { --bz-main-left: 228px; } /* 20 ＋ 180 ＋ 28 */
  .bz-layout { grid-template-columns: 180px minmax(0, 1fr) 26px; gap: 0 28px; padding: 18px 20px 40px; }
  .bz-support { padding: 16px 14px 14px; }
  .bz-support .bz-support__title { font-size: 14px; }
}

/* ============================================================
   900px以下：タブレット・スマホ
============================================================ */
@media screen and (max-width: 900px) {
  .bz-header {
    position: sticky; top: 0; z-index: 20; align-items: center;
    padding: 12px 16px;
  }
  .bz-logo img { width: 190px; }
  .bz-menu-toggle { display: block; }
  .bz-menu-button {
    display: flex; flex-direction: column; align-items: center; gap: 4px;
    font-size: 9.5px; font-weight: 700; letter-spacing: 0; cursor: pointer;
  }
  .bz-menu-button span { display: block; width: 24px; height: 2px; background: var(--bz-ink); }
  .bz-nav {
    display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; gap: 0;
    padding: 4px 16px 16px; background: var(--bz-beige); border-bottom: 1px solid var(--bz-rule);
  }
  .bz-menu-toggle:checked ~ .bz-nav { display: flex; }
  .bz-nav a:link, .bz-nav a:visited { padding: 12px 0; border-bottom: 1px solid var(--bz-rule); font-size: 15px; }

  .bz-layout { grid-template-columns: minmax(0, 1fr); grid-template-areas: "main" "side" "sns"; padding: 20px 16px 28px; }
  .bz-side { margin-top: 40px; }
  .bz-side > * + * { margin-top: 34px; }
  .bz-heading { font-size: 15px; }
  .bz-side__block p { font-size: 13.5px; }
  .bz-tour img { width: 120px; }
  .bz-side .bz-guest__who, .bz-side .bz-guest__what { font-size: 13.5px; }
  .bz-side .bz-guest__when { font-size: 12px; }
  .bz-list li { padding: 4px 0; font-size: 13.5px; }
  .bz-support { padding: 22px 20px 20px; }
  .bz-support .bz-support__title { font-size: 20px; }
  .bz-support .bz-support__text { font-size: 13px; }
  .bz-support a.bz-support__button:link, .bz-support a.bz-support__button:visited { padding: 13px 6px; font-size: 14px; }
  .bz-recruit b { font-size: 15px; }

  .bz-sns {
    flex-direction: row; flex-wrap: wrap; justify-content: center; gap: 20px;
    margin-top: 36px; padding-top: 22px; border-top: 1px solid var(--bz-rule);
  }
  .bz-sns img { width: 30px; height: 30px; }
  .bz-sns p { width: 100%; margin: 0; writing-mode: horizontal-tb; text-align: center; }

  .bz-footer { flex-direction: column; align-items: flex-start; padding: 20px 16px 24px; }

  .bz-spbar {
    display: flex; position: sticky; bottom: 0; z-index: 20; align-items: center; justify-content: space-between; gap: 10px;
    padding: 10px 16px; background: var(--bz-ink); color: var(--bz-beige);
  }
  .bz-spbar p { color: var(--bz-beige); line-height: 1.4; }
  .bz-spbar small { display: block; font-size: 11px; opacity: .75; }
  .bz-spbar b { font-size: 13px; }
  .bz-spbar a:link, .bz-spbar a:visited {
    flex: none; padding: 10px 14px; background: var(--bz-beige); color: var(--bz-ink);
    font-size: 13px; font-weight: 700; letter-spacing: 0; white-space: nowrap;
  }
}