/* フォント・全体設定 */
body {
  font-family: 'Noto Sans JP', sans-serif;
  margin: 0;
  padding: 0;
  background: #fdfdfd;
  color: #333;
  line-height: 1.7;
}

/* ヘッダー */
header {
  background: #fff;
  border-bottom: 1px solid #ddd;
  padding: 1rem;
  text-align: center;
}
header .logo {
  width: 120px;
  margin-bottom: 0.5rem;
}
header h1 {
  margin: 0.5rem 0 0.2rem;
  font-size: 1.4rem;
  color: #222;
}
header p {
  font-size: 0.9rem;
  color: #666;
}
nav a {
  margin: 0 0.5rem;
  color: #007acc;
  text-decoration: none;
  font-size: 0.9rem;
}

/* メイン領域 */
main {
  max-width: 800px;
  margin: 2rem auto;
  padding: 0 1rem;
}

/* カード風セクション */
.card {
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.05);
  padding: 1.5rem;
  margin-bottom: 2rem;
}
.card h2, .card h3, .card h4 {
  color: #444;
  margin-top: 0;
}

/* 投稿リストカード */
.post-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.post-card {
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 1rem;
  background: #fff;
  text-decoration: none;
  color: inherit;
  transition: 0.2s ease;
}
.post-card:hover {
  background: #f5f5f5;
}
.post-card h3 {
  margin: 0;
  font-size: 1.1rem;
}
.post-card p {
  font-size: 0.9rem;
  color: #555;
}
.post-card span {
  display: inline-block;
  margin-top: 0.5rem;
  color: #007acc;
  font-size: 0.85rem;
}

/* 日付ごとの投稿表示 */
.daily-post {
  border-top: 1px dashed #ccc;
  padding: 1rem 0;
}
.daily-post h4 {
  margin-bottom: 0.3rem;
  font-size: 1rem;
  color: #222;
}
.daily-post p {
  margin: 0.2rem 0 1rem;
}

/* コメント欄 */
.comment-box {
  margin-top: 0.5rem;
}
.comment-box input,
.comment-box textarea {
  width: 100%;
  padding: 0.5rem;
  margin-bottom: 0.4rem;
  border: 1px solid #ccc;
  border-radius: 5px;
  font-family: inherit;
}
.comment-box button {
  background: #007acc;
  color: #fff;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  cursor: pointer;
}
.comment-box button:hover {
  background: #005fa3;
}
.comment-list {
  list-style: none;
  padding: 0;
  margin-top: 0.8rem;
}
.comment-list li {
  padding: 0.4rem 0;
  border-bottom: 1px solid #eee;
  font-size: 0.9rem;
}

/* 広告枠 */
.ad-slot {
  margin: 2rem 0;
  text-align: center;
}

/* フッター */
footer {
  text-align: center;
  font-size: 0.8rem;
  color: #888;
  margin: 3rem 0 1rem;
}
footer img.qr {
  width: 100px;
  margin-top: 1rem;
}

/* レスポンシブ */
@media screen and (max-width: 600px) {
  header h1 {
    font-size: 1.2rem;
  }
  .card {
    padding: 1rem;
  }
  .post-card h3 {
    font-size: 1rem;
  }
}