/* Case pages */

.case-eyebrow {
  margin-bottom: var(--spacing-xs);
  color: var(--color-secondary);
  font-size: var(--font-size-sm);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.case-detail-hero {
  padding: var(--spacing-md) 0 var(--spacing-xxl);
  background: var(--color-white);
  color: var(--color-text);
  overflow: hidden;
}

.case-detail-hero h1 {
  color: var(--color-primary);
}

.case-index-section {
  padding-top: var(--spacing-xxl);
}

.case-card-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-xl);
}

.case-card-grid--start {
  justify-content: flex-start;
}

.case-card-grid--two .case-card {
  flex: 0 1 calc((100% - var(--spacing-xl)) / 2);
}

.case-card {
  flex: 0 1 calc((100% - 2 * var(--spacing-xl)) / 3);
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.case-card__link {
  flex: 1;
  display: flex;
  flex-direction: column;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-white);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.case-card__link:hover {
  color: var(--color-text);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.case-card__image {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-bg);
}

.case-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.case-card__link:hover .case-card__image img {
  transform: scale(1.04);
}

.case-card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: var(--spacing-lg);
}

.case-card__company {
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
  font-size: var(--font-size-sm);
  font-weight: 700;
}

.case-card__body h3 {
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
  font-size: var(--font-size-xl);
  line-height: var(--line-height-relaxed);
}

.case-card__more {
  display: inline-flex;
  gap: 1.25rem;
  align-items: center;
  margin: auto 0 0;
  padding-top: var(--spacing-lg);
  color: var(--color-primary);
  font-weight: 700;
  font-size: var(--font-size-lg);
  letter-spacing: 0;
}

.case-card__arrow {
  display: inline-block;
  width: 1.65rem;
  height: 0.67rem;
  background-image: url("../images/case/common/arrow_blue.svg");
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  transition: transform var(--transition-fast);
}

.case-card__link:hover .case-card__more {
  color: var(--color-secondary);
}

.case-card__link:hover .case-card__arrow {
  transform: translateX(0.35rem);
}

.case-pagination {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  margin-top: var(--spacing-xl);
}

.case-pagination__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.75rem;
  height: 2.75rem;
  padding: 0 0.75rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-white);
  color: var(--color-primary);
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.case-pagination__button:hover,
.case-pagination__button.active {
  border-color: var(--color-secondary);
  background: var(--color-secondary);
  color: var(--color-white);
}

.case-detail-hero {
  padding-bottom: var(--spacing-xl);
}

.case-back-link {
  display: inline-flex;
  gap: 0.7rem;
  align-items: center;
  margin-bottom: var(--spacing-xl);
  color: var(--color-primary);
  font-weight: 700;
}

.case-back-link:hover {
  color: var(--color-secondary);
}

.case-back-link__arrow {
  width: 1.4rem;
  height: 0.58rem;
  transform: scaleX(-1);
}

.case-back-link:hover .case-back-link__arrow {
  transform: scaleX(-1) translateX(0.25rem);
}

.case-detail-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 560px);
  gap: var(--spacing-xl);
  align-items: center;
  min-width: 0;
}

.case-detail-hero__label {
  display: inline-block;
  margin-bottom: var(--spacing-sm);
  padding: 0.28rem 0.75rem;
  border: 1px solid #cfe5f2;
  border-radius: var(--radius-sm);
  background: #f4fbff;
  color: var(--color-primary);
  font-size: var(--font-size-sm);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.case-detail-hero__company {
  margin-bottom: var(--spacing-sm);
  color: var(--color-secondary);
  font-size: clamp(1.45rem, 2.1vw, 1.9rem);
  font-weight: 700;
  line-height: 1.45;
}

.case-detail-hero__text h1 {
  margin-bottom: var(--spacing-md);
  font-size: clamp(1.55rem, 2.35vw, 2.2rem);
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.case-detail-hero__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.case-detail-hero__image img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.container--case {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.case-overview {
  margin-bottom: var(--spacing-xxl);
}

.case-profile-card {
  position: relative;
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 0;
  align-items: stretch;
  margin-bottom: var(--spacing-xl);
  padding: 0;
  border: 1px solid #d9e5ec;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #ffffff 0%, #f7fbfd 100%);
  box-shadow: 0 10px 28px rgba(0, 64, 119, 0.08);
  overflow: hidden;
}

.case-profile-card__logo {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 168px;
  padding: var(--spacing-lg);
  border-right: 1px solid #d9e5ec;
  background: var(--color-white);
  min-width: 0;
}

.case-profile-card__logo img {
  width: auto;
  min-width: 0;
  max-width: 100%;
  object-fit: contain;
}

.case-profile {
  display: grid;
  align-content: center;
  margin: 0;
  padding: var(--spacing-lg);
}

.case-profile__row {
  display: grid;
  grid-template-columns: 9.5em 1fr;
  gap: var(--spacing-lg);
  padding: 1rem 0;
  border-bottom: 1px solid #d9e5ec;
}

.case-profile__row:last-child {
  border-bottom: 0;
}

.case-profile dt {
  align-self: start;
  width: fit-content;
  padding: 0.28rem 0.7rem;
  border: 1px solid #cfe5f2;
  border-radius: var(--radius-sm);
  background: #f4fbff;
  color: var(--color-primary);
  font-size: var(--font-size-sm);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.4;
}

.case-profile dd {
  margin: 0;
  color: var(--color-text);
  font-weight: 500;
  line-height: var(--line-height-relaxed);
}

.case-summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--spacing-md);
  min-width: 0;
}

.case-summary-item {
  min-width: 0;
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  background: var(--color-info);
}

.case-summary-item h2 {
  display: inline-flex;
  gap: 0.65rem;
  align-items: center;
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
  font-size: var(--font-size-xl);
}

.case-summary-item h2 i {
  color: var(--color-secondary);
  font-size: 0.9em;
}

.case-summary-item ul {
  display: grid;
  gap: var(--spacing-xs);
  margin: 0;
  padding: 0;
}

.case-summary-item li {
  position: relative;
  padding-left: 1.1rem;
  color: var(--color-text);
  line-height: var(--line-height-relaxed);
  overflow-wrap: anywhere;
}

.case-summary-item li::before {
  content: "";
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--color-secondary);
}

.case-lead {
  margin-bottom: var(--spacing-xxl);
}

.case-lead p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
  font-size: var(--font-size-base);
  line-height: var(--line-height-max);
}

.case-section-title {
  position: relative;
  margin: calc(var(--spacing-xxl) * 1.35) 0 var(--spacing-lg);
  padding-left: var(--spacing-md);
  color: var(--color-primary);
  font-size: clamp(1.35rem, 2.2vw, 1.75rem);
}

.case-section-title::before {
  content: "";
  position: absolute;
  top: 0.15em;
  bottom: 0.15em;
  left: 0;
  width: 6px;
  background: var(--color-secondary);
}

.case-qa__item {
  margin-bottom: calc(var(--spacing-xxl) * 1.5);
}

.case-qa__q {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  margin-bottom: var(--spacing-lg);
  color: var(--color-primary);
  font-size: var(--font-size-lg);
  font-weight: 700;
  line-height: var(--line-height-relaxed);
}

.case-qa__q::before {
  content: "";
  display: block;
  flex: 0 0 clamp(24px, 4vw, 42px);
  height: 1px;
  background: currentColor;
}

.case-qa__a {
  padding-left: 0;
}

.case-qa__a p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
  line-height: var(--line-height-max);
}

.case-qa__method-list {
  margin: 0 0 var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-md) var(--spacing-sm);
  border-left: 3px solid var(--color-secondary);
  background: var(--color-info);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.case-qa__method-list dt {
  margin-top: var(--spacing-md);
  color: var(--color-primary);
  font-size: var(--font-size-sm);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.case-qa__method-list dt:first-child {
  margin-top: 0;
}

.case-qa__method-list dd {
  margin: 0.3rem 0 0;
  color: var(--color-text);
  line-height: var(--line-height-max);
}

.case-qa__compare-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs) var(--spacing-lg);
  list-style: none;
  margin: var(--spacing-sm) 0 var(--spacing-md);
  padding: 0;
  color: var(--color-text);
}

.case-qa__a strong,
.case-lead strong {
  color: var(--color-text);
  font-weight: 700;
}

.case-article-image-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--spacing-md);
  align-items: start;
  margin: var(--spacing-xl) 0 var(--spacing-xxl);
}

.case-article-image {
  margin: 0;
  border-radius: var(--radius-lg);
}

.case-article-image img {
  display: block;
  width: 100%;
  aspect-ratio: 1200 / 630;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}


.case-figcaption {
  padding: 0.55rem var(--spacing-sm);
  color: #6e8a99;
  font-size: var(--font-size-sm);
  text-align: center;
  line-height: var(--line-height-relaxed);
}

.case-image-group {
  margin: var(--spacing-xl) 0 var(--spacing-xxl);
}

.case-image-group .case-article-image-grid {
  margin: 0 0 var(--spacing-xs);
}

.case-image-group .case-figcaption {
  padding-top: 0.3rem;
}

.case-article-image--wide {
  margin: var(--spacing-xl) 0 var(--spacing-xxl);
}

.case-article-image--wide img {
  aspect-ratio: auto;
  height: auto;
}

.case-article-image-grid--small img {
  aspect-ratio: 4 / 3;
}

/* 縦長画像：高さ基準で表示し、幅は自動（中央寄せ） */
.case-article-image--portrait {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.case-article-image--portrait img {
  width: auto;
  max-width: 100%;
  max-height: 500px;
}

.case-data-caption {
  color: var(--color-primary);
  font-weight: 700;
}

.case-data-caption--first {
  margin-top: var(--spacing-lg);
}

.case-data-caption--second {
  margin-top: var(--spacing-xl);
}

.case-data-table {
  width: 100%;
  margin: var(--spacing-sm) 0 var(--spacing-lg);
  border-collapse: collapse;
  font-size: var(--font-size-sm);
  overflow-x: auto;
}

.case-data-table th,
.case-data-table td {
  padding: 0.85rem;
  border: 1px solid var(--color-border);
  text-align: center;
  vertical-align: middle;
}

.case-data-table th {
  background: var(--color-primary);
  color: var(--color-white);
  font-weight: 700;
}

.case-data-table td:first-child {
  text-align: left;
  font-weight: 700;
}

.case-data-table .highlight-row {
  background: var(--color-info);
}

@media (max-width: 1024px) {
  .case-card {
    flex-basis: calc(50% - var(--spacing-xl) / 2);
  }

  .case-detail-hero__grid,
  .case-profile-card {
    grid-template-columns: 1fr;
  }

  .case-profile-card__logo {
    border-right: 0;
    border-bottom: 1px solid #d9e5ec;
  }

  .case-profile-card__logo img {
    max-width: min(480px, 100%);
  }
}

@media (max-width: 768px) {
  .case-detail-hero {
    padding-top: var(--spacing-sm);
  }

  .case-card-grid,
  .case-toc ol {
    flex-direction: column;
    align-items: center;
  }

  .case-card {
    flex-basis: 100%;
    max-width: 480px;
  }

  .case-card__body {
    padding: var(--spacing-md);
  }

  .case-summary-grid {
    grid-template-columns: 1fr;
  }

  .case-summary-item li {
    word-break: break-all;
  }

  .case-detail-hero__text,
  .case-detail-hero__image,
  .case-profile-card,
  .case-profile-card__logo,
  .case-profile {
    width: 100%;
    max-width: calc(100vw - 2rem);
    min-width: 0;
  }

  .case-detail-hero__text h1 {
    width: 100%;
    max-width: calc(100vw - 2rem);
    font-size: 1.5rem;
    overflow-wrap: anywhere;
    word-break: break-all;
    white-space: normal;
  }

  .case-detail-hero__company {
    width: 100%;
    max-width: calc(100vw - 2rem);
    font-size: 1.35rem;
    overflow-wrap: anywhere;
  }

  .case-profile-card__logo img {
    width: 100%;
    max-width: min(260px, 100%);
  }

  .case-profile__row {
    grid-template-columns: 1fr;
    gap: var(--spacing-xs);
  }

  .case-qa__q {
    gap: var(--spacing-sm);
    font-size: var(--font-size-base);
  }

  .case-qa__q::before {
    flex-basis: 18px;
  }

  .case-data-table {
    display: block;
    white-space: nowrap;
  }

  .case-article-image-grid {
    grid-template-columns: 1fr;
  }
}