/* 全体設定 */
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
               Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: #f9f9f9;
  color: #222;
}

/* レイアウト */
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 20px;
}

/* タイトル */
.hero {
  text-align: center;
  margin-bottom: 40px;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 8px;
}

.subtitle {
  color: #666;
  font-size: 1.1rem;
}

/* 自己紹介 */
.about {
  text-align: center;
  margin-bottom: 60px;
  line-height: 1.7;
}

/* プロダクト */
.products h2 {
  text-align: center;
  margin-bottom: 24px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
}

/* プロダクトカード */
.product-card {
  background: #fff;
  border-radius: 12px;
  padding: 16px;
  text-align: center;
  text-decoration: none;
  color: inherit;
  max-width: 280px;
  margin: 0 auto;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  transition: transform 0.2s, box-shadow 0.2s;
}

.product-card p {
  font-size: 0.9rem;
  line-height: 1.5;
  color: #444;
}


.product-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 12px;
}

.product-card span {
  font-weight: 600;
}

/* hover */
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.12);
}