/* OBC24 use-case landing page release: deeper landingpage sections and internal link cards */
.usecase-detail-section .section-head,
.usecase-guardrails .section-head {
  max-width: 840px;
}

.usecase-matrix {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 26px;
}

.usecase-mini-card,
.usecase-link-card,
.check-card,
.related-card {
  position: relative;
  border: 1px solid rgba(148, 163, 184, 0.18);
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.84), rgba(2, 6, 23, 0.74));
  border-radius: 24px;
  box-shadow: 0 18px 52px rgba(2, 6, 23, 0.26);
}

.usecase-mini-card {
  padding: 22px;
  min-height: 100%;
}

.usecase-mini-card::before,
.usecase-link-card::before,
.check-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background: radial-gradient(circle at 18% 0%, rgba(59, 130, 246, 0.16), transparent 34%);
}

.usecase-mini-card h3,
.usecase-link-card h3,
.check-card h3,
.related-card h3 {
  margin-top: 0;
  margin-bottom: 10px;
}

.usecase-mini-card p,
.usecase-link-card p,
.check-card p,
.related-card p {
  margin-bottom: 0;
}

.usecase-link-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 26px;
}

.usecase-link-card {
  padding: 26px;
  overflow: hidden;
}

.usecase-link-card .icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 14px;
  border-radius: 16px;
  background: rgba(59, 130, 246, 0.13);
  border: 1px solid rgba(96, 165, 250, 0.28);
}

.usecase-link-card h3 a,
.related-links a {
  color: inherit;
  text-decoration: none;
}

.usecase-link-card h3 a:hover,
.related-links a:hover {
  color: var(--accent, #60a5fa);
}

.check-card,
.related-card {
  padding: 26px;
}

.check-list,
.related-links {
  list-style: none;
  padding: 0;
  margin: 14px 0 0;
  display: grid;
  gap: 10px;
}

.check-list li,
.related-links li {
  position: relative;
  padding-left: 28px;
  color: rgba(226, 232, 240, 0.88);
}

.check-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: #22c55e;
  font-weight: 800;
}

.related-links li::before {
  content: '→';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent, #60a5fa);
  font-weight: 800;
}

.usecase-guardrails .split {
  align-items: stretch;
}

.usecase-guardrails .check-card,
.related-card {
  height: 100%;
}

@media (max-width: 1040px) {
  .usecase-matrix {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .usecase-link-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .usecase-matrix {
    grid-template-columns: 1fr;
  }
  .usecase-mini-card,
  .usecase-link-card,
  .check-card,
  .related-card {
    padding: 20px;
    border-radius: 20px;
  }
}