@charset "UTF-8";
/*-----------------------------------------------------
/////header.css/////
  ※仮デザイン（参考デモ準拠）。
  最終的なレイアウト・ロゴ・背景・装飾は制作者が別途判断する。
  ヘッダーの変更はこのファイルと inc/header.php の site-header ブロックだけで完結する。
  ナビ開閉の動作は js/ui.js（#g-nav / .ks-nav-toggle / .is-open）に依存する。
-----------------------------------------------------*/
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--header-bg);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(8, 47, 98, 0.06);
}
.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  width: min(1440px, calc(100% - var(--gutter) * 2));
  height: var(--header-h);
  margin-inline: auto;
}

/*-----------------------------------------------------
***brand（仮ロゴ：CSSのマーク＋テキスト）***
-----------------------------------------------------*/
.site-brand {
  flex: 0 0 auto;
}
.site-brand a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--c-ink);
  text-decoration: none;
}
/* 城西大学ロゴ左のアイコン（img/logo-josai.png から切り出し。元画像が小さいため原寸の高さ36pxで表示） */
.site-brand__mark {
  flex: none;
  display: block;
  width: auto;
  height: 36px;
}
.site-brand__text {
  display: grid;
  gap: 4px;
  line-height: 1;
}
.site-brand__text small {
  font-size: var(--fs-xxs);
  font-weight: var(--fw-bold);
  letter-spacing: 0.14em;
}
.site-brand__text b {
  font-size: 22px;
  font-weight: var(--fw-black);
  letter-spacing: 0.05em;
}

/*-----------------------------------------------------
***global nav（PC）***
-----------------------------------------------------*/
.site-nav {
  height: 100%;
  margin-left: auto;
}
.site-nav__list {
  display: flex;
  height: 100%;
}
.site-nav__list a {
  position: relative;
  display: grid;
  place-content: center;
  height: 100%;
  padding: 0 18px;
  color: var(--c-ink);
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  line-height: 1.2;
}
.site-nav__list .jp {
  font-size: 15px;
  font-weight: var(--fw-bold);
}
.site-nav__list .en {
  margin-top: 5px;
  color: var(--c-text-muted);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.site-nav__list a::after {
  content: "";
  position: absolute;
  left: 26%;
  right: 26%;
  bottom: 14px;
  height: 3px;
  border-radius: 9px;
  background: var(--c-accent);
  transform: scaleX(0);
  transition: transform var(--dur);
}
.site-nav__list a:hover::after,
.site-nav__list a[aria-current]::after {
  transform: scaleX(1);
}
.ks-nav-toggle {
  display: none;
}
@media (max-width: 1180px) {
  .site-nav__list a {
    padding: 0 11px;
  }
  .site-nav__list .jp {
    font-size: 14px;
  }
}

/*-----------------------------------------------------
***global nav（SP・タブレット：開閉式）***
  JS無効時は開閉せず、ヘッダー下に全項目を並べる
-----------------------------------------------------*/
@media (max-width: 991px) {
  .site-header__inner {
    flex-wrap: wrap;
    height: auto;
    min-height: var(--header-h);
  }
  .site-brand__text b {
    font-size: 19px;
  }
  .site-nav {
    width: 100%;
    height: auto;
  }
  .site-nav__list {
    flex-wrap: wrap;
    justify-content: center;
    height: auto;
    padding-bottom: var(--space-2);
  }
  .site-nav__list a {
    padding: var(--space-2) 10px;
  }
  .site-nav__list .en {
    display: none;
  }
  .site-nav__list a::after {
    bottom: 2px;
  }

  /* JS有効時 */
  .js .site-header__inner {
    flex-wrap: nowrap;
    height: var(--header-h);
  }
  .js .site-nav {
    width: auto;
  }
  .js .ks-nav-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    height: 44px;
    padding: 0 14px;
    border: 0;
    border-radius: 12px;
    background: var(--c-surface-muted);
    color: var(--c-ink);
    font-size: 13px;
    font-weight: var(--fw-bold);
  }
  .ks-nav-toggle__icon {
    position: relative;
    width: 20px;
    height: 14px;
  }
  .ks-nav-toggle__icon span {
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    border-radius: 2px;
    background: currentColor;
    transition: transform var(--dur), opacity var(--dur);
  }
  .ks-nav-toggle__icon span:nth-child(1) { top: 0; }
  .ks-nav-toggle__icon span:nth-child(2) { top: 6px; }
  .ks-nav-toggle__icon span:nth-child(3) { top: 12px; }
  .site-nav.is-open .ks-nav-toggle__icon span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .site-nav.is-open .ks-nav-toggle__icon span:nth-child(2) { opacity: 0; }
  .site-nav.is-open .ks-nav-toggle__icon span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

  .js .site-nav__list {
    display: block;
    visibility: hidden;
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity 0.28s ease, transform 0.28s ease, visibility 0s linear 0.28s;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    padding: var(--space-2) var(--gutter) var(--space-5);
    background: var(--c-surface);
    border-top: 1px solid var(--c-line);
    box-shadow: 0 18px 28px rgba(8, 47, 98, 0.12);
  }
  .js .site-nav.is-open .site-nav__list {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
    transition: opacity 0.28s ease, transform 0.28s ease, visibility 0s;
  }
  @media (prefers-reduced-motion: reduce) {
    .js .site-nav__list,
    .js .site-nav.is-open .site-nav__list {
      transition: none;
    }
  }
  .js .site-nav__list a {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 14px var(--space-2);
    border-bottom: 1px solid var(--c-line);
    text-align: left;
  }
  .js .site-nav__list .jp {
    font-size: var(--fs-base);
  }
  .js .site-nav__list .en {
    display: inline;
    margin-top: 0;
  }
  .js .site-nav__list a::after {
    display: none;
  }
  .js .site-nav__list a[aria-current] {
    color: var(--c-accent-text);
  }
}
@media (max-width: 760px) {
  .site-brand__mark {
    height: 32px;
  }
  .site-brand__text b {
    font-size: 18px;
  }
}