/*-------------------------------------
  導入事例セクション全体
-------------------------------------*/
.case-top-section {
  background-color: #f9fafb;
  padding: 80px 20px;
}

.case-container {
  max-width: 1200px;
  margin: 0 auto;
}

.case-top-section .case-title {
  font-size: 2rem;
  font-weight: bold;
  text-align: center;
  color: #1f2937;
	margin-bottom:-100px;
}

/*-------------------------------------
  カードグリッドレイアウト
-------------------------------------*/
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr); /* ← 3列に固定 */
  gap: 24px;
}

.case-card {
  display: flex;
  flex-direction: column;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  overflow: hidden;
  background-color: #fff;
  box-sizing: border-box;
}


.case-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

/*-------------------------------------
  サムネイル（画像）
-------------------------------------*/
.case-thumbnail {
  position: relative;
  width: 100%;
  height: 180px;        /* ← 明示的な高さに変更 */
  overflow: hidden;
}

.case-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}


/*-------------------------------------
  カード本文
-------------------------------------*/
.case-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.case-heading {
  font-size: 1rem;
  font-weight: bold;
  margin: 0 0 0.5em 0;
  color: #1f2937;
}

.case-company,
.case-count {
  font-size: 0.875rem;
  color: #4b5563;
  margin: 0;
}

.case-link {
  margin-top: auto;
  font-size: 0.875rem;
  font-weight: 600;
  color: #2563eb;
  text-decoration: none;
}

.case-link:hover {
  text-decoration: underline;
}

/*-------------------------------------
  レスポンシブ対応
-------------------------------------*/
@media (max-width: 1024px) {
  .case-card {
    width: calc(50% - 12px); /* タブレット：2列 */
  }
}

@media (max-width: 640px) {
  .case-card {
    width: 100%; /* スマホ：1列 */
  }
}

/* --------------------------
   画像ホバーアニメーション
--------------------------- */
.case-thumbnail a {
  display: block;
  overflow: hidden;
}

.case-thumbnail a img {
  transition: transform 0.3s ease;
}

.case-thumbnail a:hover img {
  transform: scale(1.05);
}

/* --------------------------
   タイトルホバーアニメーション
--------------------------- */
.case-title-link {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease, text-decoration 0.3s ease;
}

.case-title-link:hover {
  color: #1d4ed8; /* より濃いブルー */
  text-decoration: underline;
}

/* --------------------------
   カード全体ホバー影強調（補足）
--------------------------- */
.case-card {
  transition: box-shadow 0.3s ease;
}

.case-card:hover {
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
}

.case-more-button {
  text-align: center;
  margin-top: 2rem;
}

.case-more-button .button {
  display: inline-block;
  padding: 0.75rem 2rem;
  background-color: #06b6d4; /* シアン系 */
  color: #fff;
  text-decoration: none;
  border-radius: 6px;
  font-weight: bold;
  transition: background-color 0.3s ease;
}

.case-more-button .button:hover {
  background-color: #0891b2;
}