/* ============================================================
 * B2.1 spike — math render-check page. Remove with the demo route.
 * ============================================================ */

.math-demo {
  max-width: 760px;
  margin: 0 auto;
  padding: 24px 18px 60px;
}
.math-demo h1 {
  font-family: var(--font-display);
  font-size: 32px;
  color: var(--hot);
  -webkit-text-stroke: 1.5px var(--line);
  margin: 0 0 8px;
}
.math-demo p {
  color: var(--ink);
  font-size: 16px;
  margin: 0 0 10px;
}
.math-demo-note {
  font-size: 14px;
  color: var(--ink-soft);
  background: var(--paper);
  border: 2px dashed var(--ink-soft);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-bottom: 20px;
}

.math-demo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border: 2px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.math-demo-head {
  background: var(--ultra-soft);
  color: var(--ultra);
  font-family: var(--font-mono-display);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 800;
  padding: 10px 14px;
}
.math-demo-src {
  background: var(--cream);
  font-family: var(--font-mono-display), "SF Mono", monospace;
  font-size: 14px;
  color: var(--ink);
  padding: 12px 14px;
  word-break: break-word;
  display: flex;
  align-items: center;
}
.math-demo-out {
  background: var(--paper);
  padding: 12px 14px;
  display: flex;
  align-items: center;
  /* MathML inherits this; a real math font keeps fractions/operators sharp. */
  font-family: "STIX Two Math", "Latin Modern Math", "Cambria Math", math, serif;
  font-size: 22px;
  color: var(--ink);
}
.math-demo-out math {
  font-size: inherit;
}
.math-demo-fail {
  font-family: var(--font-body);
  font-size: 13px;
  color: #c0392b;
  background: #ffe0e0;
}

.math-demo-h2 {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--ultra);
  margin: 32px 0 8px;
}
.math-demo-templates {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.math-demo-templates li {
  background: var(--cream);
  border: 2px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
}
.math-demo-templates code,
.math-demo-note code {
  font-family: var(--font-mono-display), monospace;
  font-size: 13px;
}