/* ===== 会報「岩つばめ」一覧 ===== */
.page-content {
  width: 100%;
  max-width: 960px;
  margin: 0 auto; /* 中央揃え */
  padding: 1rem;
}

/* 画面が広いときは幅を80%に */
@media screen and (min-width: 1024px) {
  .page-content {
    width: 80%;
    max-width: none; /* 上限を解除して、80%優先 */
  }
}


/* 検索ボタン */
.search-bar {
  text-align: left;
}

.btn-search {
  background-color: #fff;
  color: #0055cc;
  border: 1px solid #0055cc;  /* 枠線を追加 */
  border-radius: 6px;
  padding: 0.6rem 1.2rem;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s ease;
}



/* 会報リスト */
.issue-list-section {
  padding: 1rem 2rem 3rem;
}

.issue-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.5rem 1.5rem;
  margin-top: 1rem;
}

.issue-list li {
  list-style: none;
  padding: 0.4rem 0;
}

.issue-list a {
  color: #0055cc;
  text-decoration: none;
  display: inline-block;
  transition: color 0.2s;
}

.issue-list a:hover {
  color: #003f99;
  text-decoration: underline;
}

/* スマホ対応 */
@media (max-width: 600px) {
  .page-header {
    margin: 1rem;
  }
  .search-bar {
    text-align: center;
    margin: 1rem;
  }
  .issue-list {
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  }
}