body {
  font-family: "Helvetica Neue", "Hiragino Sans", "Noto Sans JP", sans-serif;
  margin: 0;
  padding: 0;
  background: #f9fdfd;
  color: #333;
  line-height: 1.8;
}

/* ヘッダー */
.header {
  background: #008080;
  padding: 12px 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo img {
  height: 50px;
}

.nav-menu {
  list-style: none;
  display: flex;
  gap: 20px;
  margin: 0;
  padding: 0;
}

.nav-menu li a {
  color: #fff;
  text-decoration: none;
  font-weight: bold;
  transition: opacity 0.3s ease;
}

.nav-menu li a:hover {
  opacity: 0.7;
}


.note-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.note-row {
  display: flex;
  border: 1px solid #ddd;
  border-radius: 6px;
  padding: 12px 16px;
  margin-bottom: 12px;
  background: #fff;
  align-items: center;
}

.note-label {
  flex: 0 0 120px;
  font-weight: bold;
  color: #008080;
  font-size: 0.95rem;
  text-align: right;
}

.note-content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.note-date {
  display: block;
  font-size: 0.85rem;
  color: #888;
  margin-bottom: 4px;
}

.note-content a {
  color: #333;
  font-weight: 600;
  text-decoration: none;
}

.note-content a:hover {
  color: #d87c5a;
}



/* ✅ レスポンシブ対応：スマホでは1〜2列に */
@media screen and (max-width: 600px) {
  .blog-list {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    padding: 20px;
    gap: 12px;
  }

  .blog-card h3 {
    font-size: 0.75rem;
    padding: 6px;
  }
}

/* フッター */
.footer {
  background: #008080;
  color: #fff;
  text-align: center;
  padding: 20px;
  margin-top: 60px;
}

.footer p {
  margin: 5px 0;
}