/* Cloud Sandbox Phase 4 visual-system additions */

.visual-hero {
  border-bottom: 1px solid var(--line);
}

.visual-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(18rem, 1.05fr);
  gap: var(--space-xl);
  align-items: center;
}

.visual-hero-copy {
  display: grid;
  gap: var(--space-m);
}

.visual-frame,
.editorial-image-frame,
.diagram-frame,
.topic-visual {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) * 1.15);
  background:
    radial-gradient(circle at 20% 10%, rgba(139, 211, 255, 0.11), transparent 20rem),
    var(--ink-soft);
  box-shadow: 0 1.6rem 5rem var(--shadow);
}

.visual-frame img,
.editorial-image-frame img,
.diagram-frame img,
.topic-visual img {
  display: block;
  width: 100%;
  height: auto;
}

.editorial-image-frame {
  padding: 0.75rem;
}

.editorial-image-frame figcaption,
.diagram-frame figcaption {
  margin-top: 0.75rem;
  color: var(--paper-muted);
  font-family: var(--font-mono);
  font-size: var(--step--1);
}

.diagram-frame {
  padding: 1rem;
}

.diagram-frame img {
  border-radius: 0.85rem;
}

.topic-visual {
  padding: 1rem;
}

.visual-cluster {
  display: grid;
  gap: 1rem;
}

.visual-caption-card {
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: rgba(16, 16, 24, 0.66);
}

.visual-caption-card span {
  color: var(--warning-gold);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.visual-caption-card strong {
  display: block;
  margin-top: 0.35rem;
  line-height: 1.2;
}

.brand-stamp {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.brand-stamp::before {
  content: "";
  width: 1.65rem;
  height: 1.65rem;
  border-radius: 50%;
  background: var(--cloud-blue);
  box-shadow: 0 0 0 0.35rem rgba(139, 211, 255, 0.12);
}

.visual-rule {
  height: 1px;
  margin-block: var(--space-l);
  background: linear-gradient(90deg, transparent, var(--line-strong), transparent);
}

@media (max-width: 860px) {
  .visual-hero-grid {
    grid-template-columns: 1fr;
  }
}