@charset "utf-8";
/* CSS Document */
/*
===========================================
  3カラム画像リンクセクション
===========================================
*/

.three-column-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  width: 100%;
}

.column-link {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  text-decoration: none;
}

.column-link img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

/* ホバー時に画像を拡大 */
.column-link:hover img {
  transform: scale(1.1);
}

/* オーバーレイ */
.column-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s ease;
}

.column-link:hover .column-overlay {
  background: rgba(0, 0, 0, 0.5);
}

/* タイトル */
.column-title {
  color: #fff;
  font-size: 32px;
  font-weight: bold;
  letter-spacing: 0.1em;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
  margin: 0;
  font-family: 'Montserrat', sans-serif;
}

/* ========== レスポンシブ対応 - スマホ ========== */
@media screen and (max-width: 768px) {
  .three-column-links {
    grid-template-columns: 1fr;
  }
  
  .column-link {
    aspect-ratio: 21 / 9;
  }
  
  .column-title {
    font-size: 24px;
  }
}