/* ブログ一覧専用。通常の記事ページやLP全体のスタイルには影響させない。 */
.blog-index [hidden] {
  display: none !important;
}

.blog-controls {
  display: grid;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
  padding: 1.25rem;
  border: 1px solid #dbe3ee;
  border-radius: 0.75rem;
  background: #f8fafc;
}

.blog-control-label {
  display: block;
  margin-bottom: 0.45rem;
  color: #172b4d;
  font-size: 0.875rem;
  font-weight: 700;
}

.blog-search__row {
  display: flex;
  gap: 0.5rem;
}

.blog-search input[type="search"] {
  min-width: 0;
  flex: 1;
  min-height: 2.75rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid #b8c4d4;
  border-radius: 0.5rem;
  background: #fff;
  color: #172b4d;
  font: inherit;
}

.blog-search input[type="search"]:focus-visible,
.blog-button:focus-visible,
.blog-topic-button:focus-visible {
  outline: 3px solid #93c5fd;
  outline-offset: 2px;
}

.blog-button,
.blog-topic-button {
  min-height: 2.75rem;
  padding: 0.55rem 0.85rem;
  border: 1px solid #9aabc0;
  border-radius: 0.5rem;
  background: #fff;
  color: #17345f;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
}

.blog-button:hover,
.blog-topic-button:hover {
  border-color: #2563eb;
  background: #eff6ff;
}

.blog-button--primary,
.blog-topic-button[aria-pressed="true"] {
  border-color: #1d4ed8;
  background: #1d4ed8;
  color: #fff;
}

.blog-button--primary:hover,
.blog-topic-button[aria-pressed="true"]:hover {
  border-color: #1e40af;
  background: #1e40af;
}

.blog-topic-filter__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.blog-result-count {
  margin: 0;
  min-height: 1.5em;
  color: #475569;
  font-size: 0.875rem;
  font-weight: 600;
}

.blog-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
}

.blog-card {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr);
  gap: 0.9rem;
  min-width: 0;
  padding: 1rem;
  border: 1px solid #dbe3ee;
  border-radius: 0.75rem;
  background: #fff;
  color: inherit;
  text-decoration: none;
  transition: border-color 140ms ease, box-shadow 140ms ease;
}

.blog-card:hover {
  border-color: #93a8c4;
  box-shadow: 0 5px 16px rgb(15 35 65 / 8%);
}

.blog-card:focus-visible {
  outline: 3px solid #93c5fd;
  outline-offset: 2px;
}

.blog-card__media {
  width: 4.5rem;
  height: 4.5rem;
  overflow: hidden;
  border: 1px solid #e2e8f0;
  border-radius: 0.5rem;
  background: #eff4f9;
}

.blog-card__image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.blog-card__content {
  min-width: 0;
}

.blog-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.3rem 0.65rem;
  margin-bottom: 0.35rem;
  color: #64748b;
  font-size: 0.75rem;
}

.blog-card__category {
  color: #1e3a5f;
  font-weight: 700;
}

.blog-card__title {
  margin: 0;
  color: #172b4d;
  font-size: 1rem;
  font-weight: 750;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.blog-card:hover .blog-card__title {
  color: #1d4ed8;
}

.blog-card__description {
  display: -webkit-box;
  overflow: hidden;
  margin: 0.4rem 0 0;
  color: #475569;
  font-size: 0.82rem;
  line-height: 1.55;
  overflow-wrap: anywhere;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.blog-card__topics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.6rem;
}

.blog-card__topic {
  display: inline-flex;
  align-items: center;
  min-height: 1.35rem;
  padding: 0.1rem 0.45rem;
  border: 1px solid #d5e0ed;
  border-radius: 999px;
  background: #f1f5f9;
  color: #334e68;
  font-size: 0.68rem;
  line-height: 1.2;
}

.blog-card__topic--unset {
  color: #64748b;
}

.blog-empty-state {
  margin: 1.5rem 0;
  padding: 1.5rem;
  border: 1px solid #dbe3ee;
  border-radius: 0.75rem;
  background: #f8fafc;
  color: #334155;
  text-align: center;
}

.blog-empty-state p {
  margin: 0 0 1rem;
}

.blog-load-more-wrap {
  display: flex;
  justify-content: center;
  margin-top: 1.5rem;
}

.blog-noscript-note {
  margin: 0 0 1rem;
  color: #475569;
  font-size: 0.875rem;
}

@media (min-width: 720px) {
  .blog-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.125rem;
  }

  .blog-card {
    grid-template-columns: 5rem minmax(0, 1fr);
    gap: 1rem;
    padding: 1.125rem;
  }

  .blog-card__media {
    width: 5rem;
    height: 5rem;
  }
}

@media (max-width: 380px) {
  .blog-card {
    grid-template-columns: 3.75rem minmax(0, 1fr);
    gap: 0.7rem;
    padding: 0.75rem;
  }

  .blog-card__media {
    width: 3.75rem;
    height: 3.75rem;
  }
}