/* ============================================================
   cases.css — 事例記事ページ 共通スタイル
   ============================================================ */

/* ── ヒーロー ── */
.case-hero {
  padding: 120px 0 64px;
  position: relative;
  overflow: hidden;
  background: #fff;
}
.case-hero-accent {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  opacity: 0.12;
}
.case-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--color-gray-400);
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.case-breadcrumb a { color: var(--color-cyan); text-decoration: none; }
.case-breadcrumb a:hover { text-decoration: underline; }
.case-category-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 50px;
  margin-bottom: 20px;
  letter-spacing: 0.04em;
}
.case-category-badge.cyan  { background: rgba(0,194,224,0.12);  color: var(--color-cyan); }
.case-category-badge.green { background: rgba(91,189,78,0.12);   color: var(--color-green); }
.case-category-badge.orange{ background: rgba(232,130,12,0.12);  color: var(--color-orange); }
.case-category-badge.yellow{ background: rgba(245,200,0,0.15);   color: #b8950a; }

.case-hero-title {
  font-size: clamp(1.5rem, 3.5vw, 2.4rem);
  font-weight: 900;
  line-height: 1.3;
  color: var(--color-black);
  margin-bottom: 20px;
  max-width: 820px;
}
.case-hero-lead {
  font-size: 1rem;
  color: var(--color-gray-600);
  line-height: 1.9;
  max-width: 720px;
  margin-bottom: 36px;
}

/* ── 概要 3カラム ── */
.case-overview {
  padding: 48px 0;
  background: var(--color-gray-50);
  border-top: 1px solid var(--color-gray-200);
  border-bottom: 1px solid var(--color-gray-200);
}
.case-overview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}
@media (max-width: 768px) {
  .case-overview-grid { grid-template-columns: 1fr; }
  .case-overview-item { border-right: none !important; border-bottom: 1px solid var(--color-gray-200); }
  .case-overview-item:last-child { border-bottom: none; }
}
.case-overview-item {
  padding: 24px 32px;
  border-right: 1px solid var(--color-gray-200);
}
.case-overview-item:last-child { border-right: none; }
.case-overview-item .ov-label {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-gray-400);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}
.case-overview-item .ov-value {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-black);
  line-height: 1.6;
}

/* ── 数値インパクト ── */
.case-metrics-section { padding: 64px 0; }
.case-metrics-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 20px;
  margin-top: 40px;
}
.case-metric-box {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  box-shadow: var(--shadow);
}
.case-metric-box .m-num {
  font-family: 'Inter', sans-serif;
  font-size: 2.6rem;
  font-weight: 900;
  line-height: 1;
  margin-bottom: 8px;
}
.case-metric-box .m-num.cyan   { color: var(--color-cyan); }
.case-metric-box .m-num.green  { color: var(--color-green); }
.case-metric-box .m-num.orange { color: var(--color-orange); }
.case-metric-box .m-num.yellow { color: #b8950a; }
.case-metric-box .m-label { font-size: 0.82rem; color: var(--color-gray-600); line-height: 1.5; }

/* ── 本文エリア ── */
.case-body-section {
  padding: 72px 0;
  background: #fff;
}
.case-body-grid {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 48px;
  align-items: start;
}
@media (max-width: 900px) {
  .case-body-grid { grid-template-columns: 1fr; }
}
.case-article h2 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-black);
  margin: 40px 0 16px;
  padding-left: 14px;
  border-left: 4px solid var(--color-cyan);
}
.case-article h2:first-child { margin-top: 0; }
.case-article h2.green  { border-left-color: var(--color-green); }
.case-article h2.orange { border-left-color: var(--color-orange); }
.case-article h2.yellow { border-left-color: var(--color-yellow); }
.case-article p {
  font-size: 0.95rem;
  color: var(--color-gray-700);
  line-height: 1.95;
  margin-bottom: 18px;
}
.case-article ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}
.case-article ul li {
  font-size: 0.9rem;
  color: var(--color-gray-700);
  display: flex;
  align-items: flex-start;
  gap: 10px;
  line-height: 1.7;
}
.case-article ul li::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-cyan);
  flex-shrink: 0;
  margin-top: 7px;
}
.case-article ul.green  li::before { background: var(--color-green); }
.case-article ul.orange li::before { background: var(--color-orange); }
.case-article ul.yellow li::before { background: var(--color-yellow); }

/* サイドバー */
.case-sidebar { position: sticky; top: 100px; }
.case-info-box {
  background: var(--color-gray-50);
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 1px solid var(--color-gray-200);
  margin-bottom: 24px;
}
.case-info-box h4 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-gray-400);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}
.case-info-row {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.case-info-item { font-size: 0.85rem; color: var(--color-gray-700); line-height: 1.6; }
.case-info-item strong { display: block; font-size: 0.75rem; color: var(--color-gray-400); font-weight: 600; margin-bottom: 2px; }
.case-tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}
.case-tech-tag {
  background: #fff;
  border: 1px solid var(--color-gray-200);
  color: var(--color-gray-700);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 6px;
}

/* ── 関連事例 ── */
.case-related-section {
  padding: 64px 0;
  background: var(--color-gray-50);
}
.case-related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 32px;
}
@media (max-width: 768px) { .case-related-grid { grid-template-columns: 1fr; } }
.case-related-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
  transition: transform var(--transition), box-shadow var(--transition);
  display: block;
  border-top: 3px solid var(--color-cyan);
}
.case-related-card.green  { border-top-color: var(--color-green); }
.case-related-card.orange { border-top-color: var(--color-orange); }
.case-related-card.yellow { border-top-color: var(--color-yellow); }
.case-related-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.case-related-card .rc-cat { font-size: 0.72rem; font-weight: 700; color: var(--color-cyan); margin-bottom: 8px; }
.case-related-card.green  .rc-cat { color: var(--color-green); }
.case-related-card.orange .rc-cat { color: var(--color-orange); }
.case-related-card.yellow .rc-cat { color: #b8950a; }
.case-related-card h4 { font-size: 0.9rem; font-weight: 700; line-height: 1.5; color: var(--color-black); }

/* ── 一覧ページ ── */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}
.cases-card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  display: block;
  transition: transform var(--transition), box-shadow var(--transition);
  border-top: 4px solid var(--color-cyan);
}
.cases-card.green  { border-top-color: var(--color-green); }
.cases-card.orange { border-top-color: var(--color-orange); }
.cases-card.yellow { border-top-color: var(--color-yellow); }
.cases-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.cases-card-body { padding: 28px; }
.cases-card .cc-cat {
  font-size: 0.72rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-cyan);
}
.cases-card.green  .cc-cat { color: var(--color-green); }
.cases-card.orange .cc-cat { color: var(--color-orange); }
.cases-card.yellow .cc-cat { color: #b8950a; }
.cases-card h3 { font-size: 0.95rem; font-weight: 700; line-height: 1.5; color: var(--color-black); margin-bottom: 10px; }
.cases-card p  { font-size: 0.82rem; color: var(--color-gray-600); line-height: 1.7; margin-bottom: 16px; }
.cases-card-metrics {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  border-top: 1px solid var(--color-gray-100);
  padding-top: 16px;
}
.cases-card-metrics .cm { text-align: center; }
.cases-card-metrics .cm strong {
  display: block;
  font-family: 'Inter', sans-serif;
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--color-cyan);
}
.cases-card.green  .cases-card-metrics .cm strong { color: var(--color-green); }
.cases-card.orange .cases-card-metrics .cm strong { color: var(--color-orange); }
.cases-card.yellow .cases-card-metrics .cm strong { color: #b8950a; }
.cases-card-metrics .cm span { font-size: 0.68rem; color: var(--color-gray-500); }

/* フィルタータブ */
.cases-filter {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}
.cases-filter-btn {
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  border: 2px solid var(--color-gray-200);
  background: #fff;
  color: var(--color-gray-600);
  cursor: pointer;
  transition: all var(--transition);
}
.cases-filter-btn:hover,
.cases-filter-btn.active { border-color: var(--color-cyan); color: var(--color-cyan); background: rgba(0,194,224,0.06); }

/* ── cases ページ CTA ボタン小型化 ── */
.sp-cta-actions .btn {
  padding: 8px 20px;
  font-size: 0.82rem;
  min-width: unset;
}