/*
Theme Name: Blockbase child
Version: 1.0.0
Template: blockbase
*/

/* ===============================
   ベース
=============================== */
* { box-sizing: border-box; }
body { margin:0; padding:0; background:#fff; color:#333; font-size:1em; line-height:1.8; overflow-x:hidden; }
a { color:#07d; text-decoration:none; }
a:hover { text-decoration:underline; }
ul { list-style:none; padding-left:15px; }

/* ===============================
   レイアウト共通
=============================== */
.main-layout { display:flex; max-width:1100px; margin:0 auto; padding:20px; gap:30px; }
main { flex:1; min-width:0; }
main article section.containment,
.side-column .side-box {
  background:#fff;
  border:1px solid #999;
  border-radius:12px;
  box-shadow:0 2px 10px rgba(0,0,0,.25);
}
main article section.containment { padding:20px; margin-bottom:20px; }
.side-column { width:220px; flex-shrink:0; }
.side-column .side-box { padding:15px; margin-bottom:20px; }

/* ===============================
   見出し
=============================== */
h1,h2,h3,h4 { font-weight:bold; letter-spacing:1px; }
article h2 { font-size:1.6em; border-bottom:2px solid #07d; padding-bottom:5px; }
h4 { margin-top:5px; }
h3 { position:relative; padding:.3em 1em .1em 40px; }
h3::before, h3::after { position:absolute; content:''; }
h3::before { top:.4em; left:.2em; width:22px; height:22px; background:#607d8b; opacity:.5; z-index:2; }
h3::after { top:.9em; left:.8em; width:15px; height:15px; background:#607d8b; opacity:.5; }

/* ===============================
   ギャラリー共通
=============================== */
.media-gallery,
.media-gallery-nui,
.parent-latest-grid { display:grid; gap:12px; }
.media-gallery { grid-template-columns:repeat(auto-fill,minmax(180px,1fr)); }
.media-gallery-nui { grid-template-columns:repeat(auto-fill,minmax(160px,1fr)); }
.parent-latest-grid {} /* 後述で列数指定 */

.media-item {
  overflow:hidden;
  border-radius:6px;
  background:#eee;
  aspect-ratio:3/2;
  box-shadow:0 4px 14px rgba(0,0,0,.2);
  transition:transform .25s ease, box-shadow .3s ease;
}
.media-gallery-nui .media-item,
.parent-latest .media-item {
  aspect-ratio:1/1;
  border-radius:14px;
  position:relative;
  background:#111;
  box-shadow:0 8px 26px rgba(0,0,0,.25);
}
.media-item img {
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
  transition:transform .45s ease, filter .35s ease;
}
.media-item:hover,
.media-gallery-nui .media-item:hover,
.parent-latest .media-item:hover {
  transform:translateY(-4px);
  box-shadow:0 14px 38px rgba(0,0,0,.45);
}
.media-item:hover img,
.media-gallery-nui .media-item:hover img,
.parent-latest .media-item:hover img {
  transform:scale(1.06);
  filter:contrast(1.12) saturate(1.1);
}
.parent-latest .media-item img {
  filter:contrast(1.05) saturate(1.05);
}

/* ===============================
   レスポンシブ
=============================== */
@media(max-width:899px){
  .main-layout { flex-direction:column; }
  .media-gallery,
  .gallery-responsive { grid-template-columns:repeat(4,1fr); }
  .parent-latest-grid { grid-template-columns:repeat(4,1fr); }
  .media-item { aspect-ratio:1/1; }
  .gallery-responsive .media-item:nth-child(n+5),
  .parent-latest-grid .media-item:nth-child(n+5) { display:none; }

  .media-gallery-toggle {
    display:flex;
    position:fixed;
    left:16px;
    bottom:calc(env(safe-area-inset-bottom,0px)+16px) ;
    width:52px;
    height:52px;
    border-radius:50%;
    background:#466688;
    color:#fff;
    font-size:26px;
    align-items:center;
    justify-content:center;
    border:none;
    cursor:pointer;
    z-index:2147483647;
  }
	  button.media-gallery-toggle {
    position: fixed !important;
    inset: auto !important;
    left: 16px !important;
    bottom: calc(env(safe-area-inset-bottom, 0px) + 16px) !important;
  }
  .media-gallery-sidebar {
    position:fixed;
    inset:0 auto 0 0;
    width:80vw;
    max-width:320px;
    height:100dvh;
    padding:20px 16px;
    background:#fff;
    overflow-y:auto;
    transform:translateX(-100%);
    transition:transform .3s ease;
    z-index:2147483646;
    box-shadow:4px 0 20px rgba(0,0,0,.35);
  }
  .media-gallery-sidebar.is-open { transform:translateX(0); }
  .media-gallery-overlay { position:fixed; inset:0; background:rgba(0,0,0,.4); display:none; z-index:10000; }
  .media-gallery-overlay.is-open { display:block; }
}

@media(min-width:900px){
  .media-gallery-toggle { display:none!important; }
  .media-gallery-page { display:flex; gap:32px; max-width:1200px; margin:0 auto; padding:0 24px; align-items:flex-start; }
  .media-gallery-sidebar { width:260px; flex-shrink:0; position:sticky; top:20px; max-height:calc(100vh - 40px); overflow-y:auto; }
  .media-gallery-content { flex:1; min-width:0; }
  .parent-latest-grid { grid-template-columns:repeat(6,1fr); }
}

/* ===============================
   「全て見る」「一覧に戻る」
=============================== */
.media-gallery-viewall a,
.media-gallery-back .button {
  display:inline-block;
  background:#466688;
  color:#fff;
  border-radius:6px;
  text-decoration:none;
  font-weight:400;
  font-size:12px;
  padding:7px 14px;
  transition:all .25s ease;
}
.media-gallery-viewall a:hover,
.media-gallery-back .button:hover { background:#334466; }
.media-gallery-viewall { text-align:right; margin-top:8px; }

/* ===============================
   Lightbox
=============================== */
.media-lightbox-overlay {
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.85);
  display:none;
  align-items:center;
  justify-content:center;
  z-index:99999;
}
.media-lightbox-overlay.is-open { display:flex; }
.media-lightbox-image {
  max-width:90vw;
  max-height:90vh;
  border-radius:6px;
  box-shadow:0 10px 40px rgba(0,0,0,.6);
}

/* ===============================
   ページネーション
=============================== */
.media-gallery-pagination { text-align:center; margin-top:20px; }
.media-gallery-pagination ul { display:inline-flex; padding:0; }
.media-gallery-pagination li { margin:0 5px; }
.media-gallery-pagination a {
  padding:6px 10px;
  border:1px solid #999;
  border-radius:4px;
  color:#333;
}
.media-gallery-pagination .current {
  background:#466688;
  color:#fff;
  border-color:#466688;
}

/* ===============================
   補助
=============================== */
.new-image { color:#EE2244; font-weight:bold; margin-left:1px; }
.media-gallery-category-title { display:flex; align-items:center; gap:8px; margin-bottom:1em; }
html { scroll-behavior:smooth; }

/* ===============================
   ギャラリー目次
=============================== */
.media-gallery-toc {
  display:table;
  margin:0 auto 2.5rem;
  padding:1rem 1.5rem;
  background:#f4f4f4;
  border:1px solid #ddd;
  border-radius:8px;
}
.media-gallery-toc ul {
  margin:0; padding:0; list-style:none; display:flex; flex-wrap:wrap; gap:.5rem 1.25rem;
}
@media(max-width:600px){
  .media-gallery-toc ul { display:block; }
  .media-gallery-toc li { margin-bottom:.25rem; }
  .media-gallery-toc a { display:block; padding:.5rem .25rem; }
}

/* ===============================
   親カテゴリギャラリー補助
=============================== */
.parent-latest .parent-gallery-block { margin-bottom:30px; }
.parent-latest .gallery-category-title { font-size:1.35em; letter-spacing:.06em; margin-bottom:18px; opacity:.85; }
.parent-latest .media-gallery-more { margin-top:14px; text-align:right; }
.parent-latest .media-gallery-more a {
  font-size:13px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:#466688;
  border-bottom:1px solid transparent;
  padding-bottom:2px;
  transition:color .2s ease, border-color .2s ease;
}
.parent-latest .media-gallery-more a:hover { color:#222; border-color:#222; }