/**
 * 活用例ページ専用スタイル
 */

/* ========================================
   活用例ヒーロー
   ======================================== */

.case-hero {
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: center;
  padding: var(--spacing-xxl) 0;
  background:
    linear-gradient(135deg, rgba(0, 81, 189, 0.70) 0%, rgba(255, 107, 53, 0.50) 100%),
    url('../images/cases/case-study-hero.jpg') center/cover;
  color: var(--color-white);
  overflow: hidden;
}

/* 個別活用例の背景画像 */
.case-hero.case-a {
  background:
    linear-gradient(135deg, rgba(0, 81, 189, 0.70) 0%, rgba(255, 107, 53, 0.50) 100%),
    url('../images/cases/case-a-hero.jpg') center/cover;
}

.case-hero.case-b {
  background:
    linear-gradient(135deg, rgba(0, 81, 189, 0.70) 0%, rgba(255, 107, 53, 0.50) 100%),
    url('../images/cases/case-b-hero.jpg') center/cover;
}

.case-hero.case-c {
  background:
    linear-gradient(135deg, rgba(0, 81, 189, 0.70) 0%, rgba(255, 107, 53, 0.50) 100%),
    url('../images/cases/case-c-hero.jpg') center/cover;
}

.case-hero.case-d {
  background:
    linear-gradient(135deg, rgba(0, 81, 189, 0.70) 0%, rgba(255, 107, 53, 0.50) 100%),
    url('../images/cases/case-d-hero.jpg') center/cover;
}

.case-hero.case-e {
  background:
    linear-gradient(135deg, rgba(0, 81, 189, 0.70) 0%, rgba(255, 107, 53, 0.50) 100%),
    url('../images/cases/case-e-hero.jpg') center/cover;
}

.case-hero.case-f {
  background:
    linear-gradient(135deg, rgba(0, 81, 189, 0.70) 0%, rgba(255, 107, 53, 0.50) 100%),
    url('../images/cases/case-f-hero.jpg') center/cover;
}

/* ブログ記事の背景画像 */
.case-hero.blog-lead-nurturing {
  background:
    linear-gradient(135deg, rgba(0, 81, 189, 0.70) 0%, rgba(255, 107, 53, 0.50) 100%),
    url('../images/blog/lead-nurturing-basics.jpg') center/cover;
}

.case-hero.blog-dx-first-step {
  background:
    linear-gradient(135deg, rgba(0, 81, 189, 0.70) 0%, rgba(255, 107, 53, 0.50) 100%),
    url('../images/blog/dx-first-step.jpg') center/cover;
}

.case-hero.blog-ai-legacy-system {
  background:
    linear-gradient(135deg, rgba(0, 81, 189, 0.70) 0%, rgba(255, 107, 53, 0.50) 100%),
    url('../images/blog/ai-legacy-system.jpg') center/cover;
}

.case-hero.blog-cobol-ai {
  background:
    linear-gradient(135deg, rgba(0, 81, 189, 0.70) 0%, rgba(255, 107, 53, 0.50) 100%),
    url('../images/blog/cobol-ai-analysis.jpg') center/cover;
}

.case-hero.blog-design-sprint {
  background:
    linear-gradient(135deg, rgba(0, 81, 189, 0.70) 0%, rgba(255, 107, 53, 0.50) 100%),
    url('../images/blog/design-sprint-speed.jpg') center/cover;
}

.case-hero.blog-ai-business {
  background:
    linear-gradient(135deg, rgba(0, 81, 189, 0.70) 0%, rgba(255, 107, 53, 0.50) 100%),
    url('../images/blog/ai-business-integration.jpg') center/cover;
}

.case-hero.blog-saas-website {
  background:
    linear-gradient(135deg, rgba(0, 81, 189, 0.70) 0%, rgba(255, 107, 53, 0.50) 100%),
    url('../images/blog/saas-website-strategy.jpg') center/cover;
}

.case-hero.blog-strategic-focus {
  background:
    linear-gradient(135deg, rgba(0, 81, 189, 0.70) 0%, rgba(255, 107, 53, 0.50) 100%),
    url('../images/blog/strategic-focus.jpg') center/cover;
}

.case-hero-content {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.case-hero h1 {
  font-size: clamp(28px, 4vw, 42px);
  color: var(--color-white);
  margin-bottom: var(--spacing-m);
  line-height: 1.3;
}

.case-hero-company {
  font-size: 20px;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-s);
}

/* ========================================
   導入概要サマリー
   ======================================== */

.case-summary {
  padding: var(--spacing-xl) 0;
  background-color: var(--color-light-gray);
}

.case-summary-box {
  max-width: 900px;
  margin: 0 auto;
  background-color: var(--color-white);
  border-radius: var(--radius-card);
  padding: var(--spacing-l);
  box-shadow: var(--shadow-card);
}

.case-summary-table {
  width: 100%;
  border-collapse: collapse;
}

.case-summary-table tr {
  border-bottom: 1px solid var(--color-border);
}

.case-summary-table tr:last-child {
  border-bottom: none;
}

.case-summary-table th {
  text-align: left;
  padding: var(--spacing-m) var(--spacing-s);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  width: 30%;
  vertical-align: top;
}

.case-summary-table td {
  padding: var(--spacing-m) var(--spacing-s);
  line-height: var(--line-height-body);
}

.case-summary-table td ul {
  list-style: disc;
  padding-left: 20px;
  margin: 0;
}

.case-summary-table td li {
  margin-bottom: var(--spacing-xs);
}

@media (max-width: 767px) {
  .case-summary-table th,
  .case-summary-table td {
    display: block;
    width: 100%;
  }

  .case-summary-table th {
    padding-bottom: var(--spacing-xs);
  }

  .case-summary-table td {
    padding-top: 0;
  }
}

/* ========================================
   お客様の声
   ======================================== */

.case-testimonial {
  padding: var(--spacing-xl) 0;
}

.case-testimonial-box {
  max-width: 900px;
  margin: 0 auto;
  background-color: var(--color-light-gray);
  border-left: 4px solid var(--color-accent);
  padding: var(--spacing-l);
  border-radius: var(--radius-card);
}

.case-testimonial-quote {
  font-size: clamp(18px, 2.5vw, 24px);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  line-height: 1.6;
  margin-bottom: var(--spacing-m);
}

.case-testimonial-author {
  text-align: right;
  color: var(--color-dark-gray);
  font-size: 16px;
}

/* ========================================
   課題・解決策・成果セクション
   ======================================== */

.case-section {
  padding: var(--spacing-xl) 0;
}

.case-section:nth-child(even) {
  background-color: var(--color-light-gray);
}

.case-section-content {
  max-width: 900px;
  margin: 0 auto;
}

.case-section h2 {
  font-size: var(--font-size-h2);
  color: var(--color-primary);
  margin-bottom: var(--spacing-l);
  text-align: center;
}

.case-section h3 {
  font-size: var(--font-size-h3);
  color: var(--color-primary);
  margin-bottom: var(--spacing-m);
  margin-top: var(--spacing-l);
}

.case-section p {
  line-height: var(--line-height-body);
  margin-bottom: var(--spacing-m);
}

.case-section ul {
  list-style: none;
  padding: 0;
}

.case-section ul li {
  padding: var(--spacing-s);
  margin-bottom: var(--spacing-s);
  background-color: var(--color-white);
  border-left: 3px solid var(--color-accent);
  border-radius: 4px;
}

.case-section ul li strong {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

/* ========================================
   成果ハイライト
   ======================================== */

.case-results {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-m);
  margin-top: var(--spacing-l);
}

@media (min-width: 768px) {
  .case-results {
    grid-template-columns: repeat(2, 1fr);
  }
}

.case-result-item {
  background-color: var(--color-white);
  border-radius: var(--radius-card);
  padding: var(--spacing-m);
  box-shadow: var(--shadow-card);
}

.case-result-icon {
  font-size: 32px;
  margin-bottom: var(--spacing-s);
}

.case-result-title {
  font-size: 20px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-s);
}

.case-result-description {
  color: var(--color-dark-gray);
  line-height: var(--line-height-body);
}

/* ========================================
   担当コンサルタント
   ======================================== */

.case-consultant {
  display: flex;
  align-items: center;
  gap: var(--spacing-m);
  padding: var(--spacing-l);
  background-color: var(--color-white);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  margin-top: var(--spacing-l);
}

.case-consultant-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  flex-shrink: 0;
}

.case-consultant-content {
  flex: 1;
}

.case-consultant-name {
  font-size: 18px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.case-consultant-role {
  font-size: 14px;
  color: var(--color-medium-gray);
  margin-bottom: var(--spacing-s);
}

.case-consultant-comment {
  font-size: 15px;
  color: var(--color-dark-gray);
  line-height: var(--line-height-body);
}

@media (max-width: 767px) {
  .case-consultant {
    flex-direction: column;
    text-align: center;
  }
}

/* ========================================
   関連CTA
   ======================================== */

.case-cta {
  padding: var(--spacing-xl) 0;
  background-color: var(--color-white);
  color: var(--color-dark-gray);
  text-align: center;
}

.case-cta h2 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-m);
}

.case-cta-description {
  max-width: 700px;
  margin: 0 auto var(--spacing-l) auto;
  font-size: 18px;
  color: var(--color-dark-gray);
  line-height: var(--line-height-body);
}

.case-cta-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-s);
  align-items: center;
  margin-bottom: var(--spacing-l);
}

@media (min-width: 768px) {
  .case-cta-buttons {
    flex-direction: row;
    justify-content: center;
  }
}

.case-cta-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-s);
  align-items: center;
}

@media (min-width: 768px) {
  .case-cta-links {
    flex-direction: row;
    gap: var(--spacing-l);
  }
}

.case-cta-link {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: underline;
  transition: color var(--transition-fast);
}

.case-cta-link:hover {
  color: var(--color-accent);
}