/* OptimusPy docs — visual continuity banner that mirrors the landing page identity. */

.optimus-banner {
  background: linear-gradient(135deg, #0a0a1a 0%, #1a1a3a 100%);
  border: 1px solid rgba(34, 211, 238, 0.2);
  border-radius: 12px;
  padding: 24px 28px;
  margin-bottom: 32px;
  position: relative;
  overflow: hidden;
}

.optimus-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.18) 0%, transparent 60%);
  pointer-events: none;
}

.optimus-banner::after {
  content: '';
  position: absolute;
  bottom: -50%;
  left: -10%;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(167, 139, 250, 0.18) 0%, transparent 60%);
  pointer-events: none;
}

.optimus-banner h1,
.optimus-banner p,
.optimus-banner a {
  color: #ffffff !important;
  position: relative;
  z-index: 1;
  margin: 0;
}

.optimus-banner h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
  background: linear-gradient(90deg, #22d3ee, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.optimus-banner p {
  color: #cbd5e1 !important;
  font-size: 0.95rem;
  line-height: 1.6;
}

.optimus-banner a.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  color: #22d3ee !important;
  font-weight: 600;
  text-decoration: none;
  font-size: 0.9rem;
}

.optimus-banner a.back-link:hover {
  color: #a78bfa !important;
}

/* Embedded diagrams (User Guide). */

.diagram-frame {
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 8px;
  overflow: hidden;
  margin: 1em 0 0.5em;
}

.diagram-frame iframe {
  display: block;
  width: 100%;
  height: 900px;
  border: 0;
}

@media (max-width: 700px) {
  .diagram-frame iframe {
    height: 640px;
  }
}