.pf-controls form {
  display: grid;
  gap: 16px;
}

.pf-inputs {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.pf-inputs label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1 1 320px;
  min-width: 240px;
  font-size: 0.95rem;
}

.pf-inputs textarea {
  min-height: 88px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  resize: vertical;
}

.pf-hint {
  color: var(--text-muted, #555);
  font-size: 0.9rem;
  margin: -4px 0 4px;
}

.pf-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

#pf-error {
  color: #b00020;
  font-size: 0.9rem;
  min-height: 1.2rem;
}

.pf-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 20px;
}

@media (max-width: 980px) {
  .pf-grid {
    grid-template-columns: 1fr;
  }
}

.pf-kv {
  display: grid;
  grid-template-columns: 10rem auto;
  gap: 4px 10px;
  align-items: baseline;
  margin-bottom: 12px;
}

.pf-kv strong {
  font-weight: 600;
}

.pf-mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  word-break: break-word;
}

#pf-terms {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
  font-variant-numeric: tabular-nums;
}

#pf-terms th,
#pf-terms td {
  border: 1px solid var(--border-color, #d1d5db);
  padding: 0.45rem 0.5rem;
  text-align: left;
}

#pf-steps {
  display: grid;
  gap: 6px;
  padding-left: 1.25rem;
}

#pf-steps li {
  line-height: 1.5;
}

.pf-latex {
  margin-top: 12px;
  background: var(--surface-100, #f5f7fb);
  border-radius: 8px;
  padding: 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  word-break: break-word;
}

#pf-examples {
  display: grid;
  gap: 6px;
  padding: 0;
  margin: 0;
  list-style: none;
}

#pf-examples li button {
  width: 100%;
  text-align: left;
}

#pf-teacher {
  display: grid;
  gap: 6px;
}

#pf-teacher[hidden] {
  display: none;
}

#pf-teacher-list {
  display: grid;
  gap: 6px;
  padding-left: 1.25rem;
}

.pf-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.pf-actions button[data-shared="true"] {
  border-color: var(--accent-500, #2563eb);
  color: var(--accent-600, #1d4ed8);
}

.pf-related-fallback {
  list-style: disc;
  padding-left: 1.25rem;
  display: grid;
  gap: 6px;
  margin: 12px 0 0;
}