#blog-post {
  max-width: 800px;
  margin: 0 auto;
  padding: 1rem;
  font-family: "Helvetica Neue", "Helvetica", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Arial", "Yu Gothic", "Meiryo", sans-serif;
}

#blog-post h1 {
  font-size: 2rem;
  margin-bottom: 0.5em;
  font-weight: 550;
}

/* 日付とカテゴリーを横並びに */
#blog-post .post-meta {
  display: flex;
  align-items: center;
  gap: 0.5em;
  font-size: 0.9rem;
  color: #666;
  margin-bottom: 1em;
  flex-wrap: wrap;
    border-bottom: 1px solid #ddd;
  padding-bottom: 0.8em;
  margin-bottom: 1.5em;
}

#blog-post time {
  display: inline-block;
  color: #888;
  margin: 0;
}

/* カテゴリーリスト */
#blog-post .post-categories {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

/* カテゴリーバッジ風リンク */
#blog-post .post-categories a {
  background-color: #f2f2f2;
  padding: 0.1rem 0.3rem;
  border-radius: 9999px;
  font-size: 0.8rem;
  color: #337ab7;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.2s ease-in-out, color 0.2s ease-in-out;
}

#blog-post .post-categories a:hover {
  background-color: #337ab7;
  color: #fff;
  text-decoration: none;
}

#blog-post img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 1em 0;
}

#blog-post .post-content {
  line-height: 1.8;
  font-size: 1rem;
}

#blog-post .post-pdf-viewer {
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  margin-top: 1em;
}

#blog-post .post-pdf-viewer iframe {
  width: 100%;
  height: 60vh;
  border: 1px solid #ccc;
  border-radius: 8px;
  display: block;
  box-sizing: border-box;
}

/* 回り込みを有効にする Froala 対応クラス */
#blog-post .post-content img.fr-fil {
  float: left;
  margin: 0 1em 1em 0;
}

#blog-post .post-content img.fr-fir {
  float: right;
  margin: 0 0 1em 1em;
}

#blog-post .post-content img.fr-fic {
  display: block;
  margin: 1em auto;
}

#blog-post .post-content img {
  max-width: 100%;
  height: auto;
  display: inline-block;
}


/* スマホ（画面幅600px以下）向け調整 */
@media screen and (max-width: 600px) {
  #blog-post {
    padding: 0.8rem 1rem;
  }
  #blog-post h1 {
    font-size: 1.5rem;
  }
  #blog-post .post-content {
    font-size: 0.95rem;
    line-height: 1.6;
  }
  #blog-post .post-pdf-viewer iframe {
    height: 50vh;
  }
}