/* assurance-panel — 「安心して施術を受けていただくために」セクションのフルリデザイン
 * 旧: 旧テーマ mod_06 モジュール(青系ベタ塗り帯 + text-white見出し + 3列カード)。
 *     フォント/文字サイズがサイト標準から浮いていた。
 * 新: 上部に写真+オーバーレイの帯見出し、下に3枚の浮き出しカード(写真上部にステップ番号バッジ)。
 *     ブランドカラーとタイポグラフィをサイト標準に統一し、ホバーで持ち上がるインタラクションを付与。 */

.assurance-panel {
  padding: 0;
}

.assurance-panel__intro {
  position: relative;
  min-height: min(34vh, 360px);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.assurance-panel__intro-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-height: none;
  object-fit: cover;
  z-index: 0;
}

.assurance-panel__intro-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,0,0,0.72) 0%, rgba(0,0,0,0.5) 100%);
  z-index: 1;
}

.assurance-panel__intro-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 2rem clamp(1.25rem, 4vw, 3rem);
  max-width: 760px;
}

.assurance-panel__eyebrow {
  font-size: var(--fs-small);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  font-weight: 600;
  margin-bottom: 0.85rem;
}

.assurance-panel__title {
  font-size: var(--fs-h2);
  color: #fff;
  line-height: 1.4;
}

.assurance-panel__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 3vw, 2.25rem);
  margin-top: clamp(-3.5rem, -6vw, -2.5rem);
  position: relative;
  z-index: 3;
  padding-bottom: clamp(3rem, 6vw, 4.5rem);
}

.assurance-panel__card {
  background: #fff;
  border-radius: calc(var(--radius-card) + 6px);
  overflow: hidden;
  box-shadow: 0 20px 48px -20px rgba(0,0,0,0.28);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.assurance-panel__card:hover {
  transform: translateY(-6px);
  box-shadow: 0 28px 60px -18px rgba(0,0,0,0.32);
}

.assurance-panel__card-media {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}

.assurance-panel__card-media img {
  width: 100%;
  height: 100%;
  max-height: none;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.assurance-panel__card:hover .assurance-panel__card-media img {
  transform: scale(1.06);
}

.assurance-panel__step {
  position: absolute;
  top: 1rem;
  left: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-on-primary);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  box-shadow: 0 8px 20px -6px color-mix(in srgb, var(--color-primary) 65%, transparent);
  z-index: 1;
}

.assurance-panel__card-body {
  padding: clamp(1.5rem, 2.5vw, 2rem);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.assurance-panel__tag {
  font-size: var(--fs-small);
  letter-spacing: 0.08em;
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.assurance-panel__card-body h3 {
  font-size: var(--fs-h3);
  color: var(--color-heading-ink);
  margin-bottom: 0.75rem;
}

.assurance-panel__card-body p:not(.assurance-panel__tag) {
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 1.25rem;
  flex: 1;
}

.assurance-panel__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--color-heading-ink);
  padding-bottom: 0.3rem;
  border-bottom: 2px solid var(--color-primary);
  transition: var(--transition);
  align-self: flex-start;
}

.assurance-panel__link svg {
  transition: transform 0.3s ease;
}

.assurance-panel__link:hover {
  color: var(--color-primary);
  opacity: 1;
}

.assurance-panel__link:hover svg {
  transform: translateX(4px);
}

@media (max-width: 900px) {
  .assurance-panel__grid {
    grid-template-columns: 1fr;
    margin-top: -2rem;
  }
  .assurance-panel__intro { min-height: 220px; }
}