.works-header{
  text-align: center;
}
/* フィルターボタン */
.works-filters {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  margin: 16px 0;
}
.filter-btn {
  padding: 6px 12px;
  background: #f1f1f1;
  border: 1px solid #ddd;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.filter-btn:hover {
  background: #e5e5e5;
}
.filter-btn.active {
  background: #333;
  color: #fff;
}

/* グリッドレイアウト */
.works-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr); /* PC */
  gap: 40px 20px;
  margin: 30px auto 0;
  width: 94%;
  max-width: 1100px;
}
@media (max-width: 768px) {
  .works-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 400px) {
  .works-grid {
    grid-template-columns: 1fr;
    max-width: 450px;
  }
}

/* カード */
.works-card {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 3px 8px rgba(0,0,0,0.1);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s, box-shadow 0.3s, opacity 0.3s;
  opacity: 1;
}
.works-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 14px rgba(0,0,0,0.15);
}

/* fade アニメーション用 */
.works-card.hidden {
  opacity: 0;
  pointer-events: none;
  transform: scale(0.97);
  transition: opacity 0.3s, transform 0.3s;
}

/* サムネイル */
.works-card-thumb {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}
.works-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* カード本文 */
.works-card-body {
  padding: 15px 20px;
}
.works-card-title {
  font-size: 1.0rem;
  margin: 0 0 10px;
}
.works-card-meta {
  margin-top: 8px;
  font-size: 0.80rem;
  text-align: center;
}
.works-card-cat {
  background: #173daa;
  color: #fff;
  padding: 3px 10px;
  border-radius: 10px;
  font-size: 0.75rem;
  display: inline-block;
}

/* ページネーション */
.works-pagination {
  margin: 24px 0;
  text-align: center;
}
.works-pagination .page-btn {
  margin: 0 4px;
  padding: 6px 10px;
  border: 1px solid #ccc;
  background: #fff;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.works-pagination .page-btn:hover {
  background: #f0f0f0;
}
.works-pagination .page-btn.active {
  background: #333;
  color: #fff;
  border-color: #333;
}