@charset "UTF-8";
/* ==========================================================================
   components.css — ボタン / セクション見出し / カード / サイドバー /
                    記事メタ / 前後記事ナビ
   ========================================================================== */

/* --------------------------------------------------------------------------
   ボタン
   -------------------------------------------------------------------------- */
.btn {
  display: inline-block;
  border: 0;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 16px;
  line-height: 1.5;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: opacity .2s, background-color .2s;
}
.btn:hover { text-decoration: none; opacity: .88; }

/* トップの「お問い合わせ」／contact.html の mailto ボタン */
.btn--cta {
  padding: 12px 24px;
  background: var(--color-cta);
  color: #fff;
}

/* News カードの「Read More」 */
.btn--accent {
  padding: 8px 15px;
  border-radius: 22px;
  background: var(--color-accent);
  color: var(--color-heading);
  font-size: 13px;
}

/* 一覧の「続きを読む」 */
.btn--primary {
  padding: 4px 16px;
  border: 1px solid var(--color-primary-dark);
  border-radius: 2px;
  background: var(--color-primary);
  color: #fff;
  font-size: 12px;
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   セクション見出し（トップページ共通）
   -------------------------------------------------------------------------- */
.section-title {
  margin: 0 0 28px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-rule);
  color: var(--color-heading);
  font-size: 28px;
  line-height: 1.4;
  text-align: center;
}

/* --------------------------------------------------------------------------
   News カード（トップページ）
   -------------------------------------------------------------------------- */
.news-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 30px;
}

.news-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius);
  background: var(--color-bg-card);
  box-shadow: 4px 4px 12px -10px #000;
  overflow: hidden;
}
.news-card__thumb {
  display: block;
  aspect-ratio: 4 / 3;
  background: #eee no-repeat 50% 50% / cover;
}
.news-card__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 15px 20px 20px;
  text-align: center;
}
.news-card__title {
  margin: 0;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-rule);
  font-size: 20px;
  line-height: 1.6;
}
.news-card__title a { color: var(--color-muted); }
.news-card__date {
  margin: 8px 0;
  color: var(--color-muted);
  font-size: 13px;
}
.news-card__date i { margin-right: 5px; }
.news-card__excerpt {
  flex: 1;
  margin-bottom: 15px;
  color: #000;
  font-size: 12px;
}

/* --------------------------------------------------------------------------
   記事一覧（news.html）
   -------------------------------------------------------------------------- */
.post-list > li {
  padding: 29px 0;
  border-bottom: 1px solid var(--color-rule);
}
.post-item { display: grid; grid-template-columns: 259px minmax(0, 1fr); gap: 29px; }

.post-item__thumb {
  position: relative;
  display: block;
  aspect-ratio: 8 / 5;
  border: 1px solid var(--color-border);
  background: #f4f4f4 no-repeat 50% 50% / cover;
}
.post-item__badge {
  position: absolute;
  top: 0; right: 0;
  padding: 3px 10px;
  background: rgba(90, 90, 90, .8);
  color: #fff;
  font-size: 11px;
}
.post-item__title {
  margin: 0;
  padding-bottom: 9px;
  border-bottom: 1px solid var(--color-rule);
  font-size: 18px;
}
.post-item__title a { color: var(--color-text); }
.post-item__date { margin: 8px 0; font-size: 13px; }
.post-item__excerpt { margin-bottom: 16px; font-size: 14px; }
.post-item__more { text-align: right; }

/* --------------------------------------------------------------------------
   サイドバー
   -------------------------------------------------------------------------- */
.sidebar__block + .sidebar__block { margin-top: 32px; }

.sidebar__title {
  position: relative;
  margin: 0 0 13px;
  padding-bottom: 9px;
  border-bottom: 1px solid var(--color-rule-strong);
  font-size: 18px;
}
.sidebar__title::after {
  content: "";
  position: absolute;
  left: 0; bottom: -1px;
  width: 60px;
  border-bottom: 1px solid var(--color-primary);
}

.sidebar-posts > li { padding: 12px 0; border-bottom: 1px solid var(--color-rule); }
.sidebar-post { display: grid; grid-template-columns: 90px minmax(0, 1fr); gap: 14px; }
.sidebar-post__thumb {
  position: relative;
  display: block;
  aspect-ratio: 8 / 5;
  background: #f4f4f4 no-repeat 50% 50% / cover;
}
.sidebar-post__title { margin: 0; font-size: 14px; line-height: 1.5; }
.sidebar-post__title a { color: var(--color-text); }
.sidebar-post__date { color: var(--color-muted); font-size: 12px; }

.sidebar-list a {
  display: block;
  padding: 10px 12px;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-rule);
}
.sidebar-list a:hover { background: #f5f5f5; text-decoration: none; }

/* --------------------------------------------------------------------------
   記事詳細
   -------------------------------------------------------------------------- */
.entry__title {
  margin: 0 0 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-rule);
  font-size: 32px;
}
.entry__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 24px;
  color: var(--color-muted);
  font-size: 13px;
}
.entry__meta i { margin-right: 6px; }

.entry__body > * + * { margin-top: 1.4em; }
.entry__body h2 {
  margin-top: 2em;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-rule);
  font-size: 24px;
}
.entry__body figure { margin: 0; }
.entry__body img { width: 100%; height: auto; }
.entry__body li { margin-left: 1.4em; list-style: disc; }
.entry__body hr { border: 0; border-top: 1px solid var(--color-rule); }

.entry__footer { margin-top: 32px; font-size: 13px; }
.entry__footer .label {
  display: inline-block;
  margin-right: 10px;
  padding: 2px 12px;
  background: #5a5a5a;
  color: #fff;
  font-size: 11px;
}

/* 前後記事ナビ */
.post-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 30px;
  margin-top: 48px;
}
.post-nav__item { position: relative; display: block; }
.post-nav__item--next { grid-column: 2; }
.post-nav__thumb { display: block; aspect-ratio: 16 / 9; background: #f4f4f4 no-repeat 50% 50% / cover; }
.post-nav__label {
  position: absolute;
  top: 0; right: 0;
  padding: 3px 12px;
  background: var(--color-primary);
  color: #fff;
  font-size: 12px;
}
.post-nav__title {
  margin: 0;
  padding: 12px 16px;
  background: #1a1a1a;
  color: #fff;
  font-size: 15px;
}

/* --------------------------------------------------------------------------
   レスポンシブ
   -------------------------------------------------------------------------- */
@media (max-width: 960px) {
  .news-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 768px) {
  .news-cards { grid-template-columns: minmax(0, 1fr); }
  .post-item { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .entry__title { font-size: 24px; }
  .post-nav { grid-template-columns: minmax(0, 1fr); }
  .post-nav__item--next { grid-column: 1; }
}