/* SVG figures preserved from source notes. Two background variants. */
figure.diagram {
  margin: 1.75em 0;
  border-radius: 10px;
  padding: 1.5em !important;
  overflow-x: auto;
  text-align: center;
  border: 1px solid rgba(255,255,255,0.08);
}
figure.diagram svg { max-width: 100%; height: auto; display: inline-block; }
figure.diagram figcaption {
  margin-top: 0.85em; color: #b8b09a; font-size: 0.88em; font-style: italic;
}
figure.diagram-dark  { background: #16140f; }
figure.diagram-light { background: #fbf7ee; }
figure.diagram-light figcaption { color: #6b6357; }
figure.diagram .svg-title  { font-family: ui-sans-serif, system-ui, sans-serif; font-size: 13px; font-weight: 600; }
figure.diagram .svg-sub    { font-family: ui-sans-serif, system-ui, sans-serif; font-size: 11px; }
figure.diagram .svg-mono   { font-family: ui-monospace, "JetBrains Mono", monospace; font-size: 11px; }
figure.diagram-dark text   { fill: #ece6d4; }

/* Rapid Recall callout, distinctive teal */
.md-typeset .tip:not(details) { border-left: 4px solid #50b4b4; }

/* Mermaid diagrams larger and on a panel */
.mermaid {
  background: #1a1a1f; border: 1px solid #2b2b35; border-radius: 8px;
  padding: 1em; margin: 1.25em 0; text-align: center;
}
.mermaid svg { max-width: 100% !important; height: auto !important; min-height: 200px; }

/* Heading hierarchy + tables polish */
.md-typeset h2 { margin-top: 2em; padding-top: 0.5em; border-top: 1px solid rgba(255,255,255,0.06); }
.md-typeset h3 { margin-top: 1.5em; }
.md-typeset code { background: rgba(255,255,255,0.07); }
.md-typeset table:not([class]) { border: 1px solid rgba(255,255,255,0.1); }
.md-typeset table:not([class]) th { background: rgba(80,180,180,0.08); }
.md-grid { max-width: 1300px; }