/* ミニマムブログ 公開側。色は :root の CSS 変数（プチテーマ）で決まる */
:root {
  --bg: #f4f5f7; --surface: #fff; --text: #222831; --muted: #69707a; --border: #d8dde3;
  --accent: #1d5f8f; --accent-dark: #154766; --heading: #1d5f8f; --header-bg: #fff; --header-text: #222831;
  --heading-font: sans-serif; --max: 1180px;
}
* { box-sizing: border-box; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text); line-height: 1.7;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", YuGothic, Meiryo, sans-serif;
}
a { color: var(--accent); text-underline-offset: .18em; text-decoration-thickness: 1px; }
a:hover, a:focus { color: var(--accent-dark); }
img { max-width: 100%; height: auto; vertical-align: middle; }
h1, h2, h3, .site-title { font-family: var(--heading-font); }

/* ヘッダー */
.site-header { background: var(--header-bg); color: var(--header-text); border-bottom: 1px solid var(--border); }
.site-header a { color: var(--header-text); }
.site-header-inner, .site-footer-inner, .site-layout { max-width: var(--max); margin: 0 auto; padding: 0 1rem; }
.site-header-inner { padding-top: 1rem; padding-bottom: 1rem; }
.site-branding { display: flex; flex-wrap: wrap; align-items: baseline; gap: .25rem 1rem; }
.site-title { margin: 0; font-size: 1.4rem; font-weight: 700; line-height: 1.2; }
.site-title a { text-decoration: none; }
.site-description { margin: 0; font-size: .85rem; opacity: .75; }
.site-nav { margin-left: auto; display: flex; gap: 1rem; font-size: .9rem; }
.site-nav a { text-decoration: none; opacity: .85; }
.site-nav a:hover { opacity: 1; text-decoration: underline; }
.header-widget-area { margin-top: .75rem; }

/* 3 カラム（左・本文・右）。参考サイトと同じ 2:3:2 */
.site-layout {
  display: grid; gap: .75rem; padding-top: 1.25rem;
  grid-template-columns: minmax(0, 2fr) minmax(0, 3fr) minmax(0, 2fr);
  grid-template-areas: "left main right";
}
.content-column { grid-area: main; min-width: 0; }
.left-sidebar { grid-area: left; min-width: 0; }
.right-sidebar { grid-area: right; min-width: 0; }
.left-sidebar:empty, .right-sidebar:empty { display: none; }
@media (max-width: 1024px) {
  .site-layout.no-right { grid-template-columns: minmax(0, 1fr); grid-template-areas: "main" "left"; }
}
.sidebar-column, .widget-area { overflow-wrap: anywhere; }

/* 片側のサイドバーが空のときは詰める（PC） */
@media (min-width: 1025px) {
  .site-layout.no-left { grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); grid-template-areas: "main right"; }
  .site-layout.no-right { grid-template-columns: minmax(0, 2fr) minmax(0, 3fr); grid-template-areas: "left main"; }
  .site-layout.no-left.no-right { grid-template-columns: minmax(0, 760px); grid-template-areas: "main"; justify-content: center; }
}
/* タブレット：本文＋右、左は下へ */
@media (max-width: 1024px) {
  .site-layout { grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); grid-template-areas: "main right" "left right"; }
}
/* スマホ：1 カラム。本文を最初に */
@media (max-width: 720px) {
  .site-layout { grid-template-columns: minmax(0, 1fr); grid-template-areas: "main" "right" "left"; padding: .75rem .5rem 0; gap: .5rem; }
  .site-header-inner { padding: .75rem .75rem; }
  .site-nav { margin-left: 0; width: 100%; }
  .site-title { font-size: 1.2rem; }
}

/* 箱 */
.widget, .entry-card, .entry, .box, .content-top-widget-area .widget {
  background: var(--surface); border: 1px solid var(--border); border-radius: 6px;
}
.widget { padding: .75rem; margin-bottom: .75rem; }
.widget-title { margin: 0 0 .5rem; font-size: 1rem; color: var(--heading); border-bottom: 2px solid var(--heading); padding-bottom: .25rem; }
.w-list { margin: 0; padding-left: 1.1rem; font-size: .9rem; }
.w-list li { margin: .25rem 0; }
.w-search { display: flex; gap: .25rem; }
.w-search input { flex: 1; min-width: 0; padding: .4rem; border: 1px solid var(--border); border-radius: 4px; background: var(--bg); color: var(--text); }
.w-search button { padding: .4rem .7rem; border: 0; border-radius: 4px; background: var(--accent); color: #fff; }

/* 記事カード（一覧） */
.entry-card { margin-bottom: .75rem; overflow: hidden; }
.entry-card-thumb { display: block; background: #000; text-align: center; }
.entry-card-thumb img { width: 100%; max-height: 520px; object-fit: contain; }
.entry-card .entry-title { margin: .6rem .8rem .2rem; font-size: 1.05rem; line-height: 1.5; }
.entry-card .entry-title a { color: var(--heading); text-decoration: none; }
.entry-card .entry-title a:hover { text-decoration: underline; }
.entry-meta { margin: 0 .8rem .7rem; font-size: .8rem; color: var(--muted); display: flex; flex-wrap: wrap; gap: .25rem .4rem; align-items: center; }

.tag { display: inline-block; padding: .05rem .5rem; border: 1px solid var(--border); border-radius: 999px; font-size: .78rem; text-decoration: none; color: var(--accent); background: var(--surface); }
.tag small { margin-left: .25rem; color: var(--muted); }
.tag:hover { border-color: var(--accent); }
.tag-list { display: flex; flex-wrap: wrap; gap: .3rem; }

/* 記事ページ */
.entry { padding: 1rem; }
.entry > .entry-title { margin: 0 0 .25rem; font-size: 1.35rem; line-height: 1.45; color: var(--heading); }
.entry > .entry-meta { margin: 0 0 .75rem; }
.entry-content .entry-image { margin: 0 0 1rem; text-align: center; }
.entry-content .entry-image img { width: 100%; }
.entry-comment { white-space: normal; }
.entry-tags { margin-top: 1rem; display: flex; flex-wrap: wrap; gap: .3rem; }
.below-post-widget-area { margin-top: .75rem; }

.page-title { font-size: 1.15rem; margin: 0 0 .75rem; color: var(--heading); }
/* 中央カラムは 1 枚の枠にまとめ、記事・ウィジェットを区切らずにつなげる */
.content-column { background: var(--surface); border: 1px solid var(--border); border-radius: 6px; overflow: hidden; align-self: start; }
.content-column .widget, .content-column .entry-card, .content-column .entry, .content-column .box {
  border: 0; border-radius: 0; margin: 0; background: transparent;
}
.content-column .widget-area { margin: 0; }
.content-column .page-title { margin: 0; padding: .75rem 1rem; }
.content-column .pager { margin: 0; padding: .75rem 1rem; }

.box { padding: 1rem; }
.empty { padding: 2rem 1rem; text-align: center; color: var(--muted); }
.notice { padding: .5rem .75rem; border-radius: 4px; background: #fff7d6; color: #5c4800; }
.notice.ok { background: #e3f6e8; color: #1d5b2c; }
.notice.err { background: #fde5e5; color: #8a1c1c; }

/* ページ送り */
.pager { display: flex; justify-content: space-between; align-items: center; gap: .5rem; margin: 1rem 0; }
.pager a { padding: .5rem 1rem; border: 1px solid var(--border); border-radius: 4px; background: var(--surface); text-decoration: none; }
.pager-pos { color: var(--muted); font-size: .85rem; }
.pager-next { margin-left: auto; }

/* お問い合わせ */
.contact-form label { display: block; margin-bottom: .9rem; font-weight: 600; font-size: .9rem; }
.contact-form input, .contact-form textarea {
  display: block; width: 100%; margin-top: .25rem; padding: .6rem; font: inherit; font-weight: normal;
  border: 1px solid var(--border); border-radius: 4px; background: var(--bg); color: var(--text);
}
.req { font-size: .7rem; background: #c0392b; color: #fff; padding: 0 .35rem; border-radius: 3px; margin-left: .25rem; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.btn { display: inline-block; padding: .6rem 1.6rem; font: inherit; border: 0; border-radius: 4px; background: var(--accent); color: #fff; cursor: pointer; }
.btn:hover { background: var(--accent-dark); }

/* フッター */
.site-footer { margin-top: 2rem; background: var(--header-bg); color: var(--header-text); border-top: 1px solid var(--border); }
.site-footer a { color: var(--header-text); }
.site-footer-inner { padding-top: 1rem; padding-bottom: 1rem; }
.footer-widget-area .widget { background: transparent; border: 0; padding: 0; }
.copyright { margin: .5rem 0 0; font-size: .8rem; opacity: .7; text-align: center; }