/* ── Case Study Section ── */
.case-study {
  background-color: #fbfbfd;
  padding: var(--space-2xl) var(--space-md);
}

.case-study__inner {
  width: 100%;
  max-width: 24rem;
  margin: 0 auto;
  text-align: center;
}

.case-study__title {
  font-size: clamp(1.5rem, 5.5vw, 2.125rem);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.03em;
  color: var(--color-text);
  margin-bottom: var(--space-lg);
}

.case-study__description {
  font-size: 1.0625rem;
  font-weight: 400;
  line-height: 1.65;
  letter-spacing: -0.01em;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
}

/* ── Cards ── */
.case-study__cards {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.case-study__card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  text-align: left;
  background-color: #ffffff;
  border-radius: 28px;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.06);
  transition:
    transform 0.35s ease,
    box-shadow 0.35s ease;
}

.case-study__card-media {
  width: 100%;
  height: 340px;
  flex: 0 0 auto;
  overflow: hidden;
  border-radius: 20px 20px 0 0;
}

.case-study__card-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  border-radius: 20px 20px 0 0;
  transition: transform 0.3s ease;
}

.case-study__card-body {
  padding: var(--space-md) var(--space-md) var(--space-lg);
}

.case-study__card-title {
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.case-study__card-meta {
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--color-cta);
  margin-bottom: 0.5rem;
}

.case-study__card-badge {
  font-size: 0.8125rem;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: #64748b;
  margin-bottom: var(--space-sm);
}

.case-study__card-desc {
  font-size: 0.9375rem;
  font-weight: 400;
  line-height: 1.6;
  letter-spacing: -0.01em;
  color: var(--color-text-secondary);
}

@media (hover: hover) {
  .case-study__card:hover {
    transform: translateY(-8px);
    box-shadow: 0 28px 60px rgba(0, 0, 0, 0.1);
  }

  .case-study__card:hover .case-study__card-image {
    transform: scale(1.03);
  }
}

/* ── Notice ── */
.case-study__notice {
  margin-top: var(--space-xl);
  font-size: 0.8125rem;
  font-weight: 400;
  line-height: 1.65;
  letter-spacing: -0.01em;
  color: var(--color-text-secondary);
}

/* ── Tablet ── */
@media (min-width: 48rem) {
  .case-study {
    padding: calc(var(--space-2xl) + 1rem) var(--space-lg) var(--space-2xl);
  }

  .case-study__inner {
    max-width: 56rem;
  }

  .case-study__title {
    margin-bottom: var(--space-xl);
  }

  .case-study__description {
    font-size: 1.1875rem;
    max-width: 40rem;
    margin-inline: auto;
    margin-bottom: calc(var(--space-xl) + 0.5rem);
  }

  .case-study__cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

  .case-study__card-body {
    padding: var(--space-md) var(--space-md) var(--space-lg);
  }

  .case-study__card-title {
    font-size: 1.1875rem;
  }

  .case-study__card-desc {
    font-size: 1rem;
  }

  .case-study__notice {
    margin-top: calc(var(--space-xl) + 0.5rem);
    font-size: 0.875rem;
  }
}

/* ── Desktop ── */
@media (min-width: 64rem) {
  .case-study__inner {
    max-width: 72rem;
  }

  .case-study__cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .case-study__card,
  .case-study__card-image {
    transition: none;
  }
}