.expr-stage {
  font-family: var(--mono);
  font-size: 1.35rem;
  font-weight: 650;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background:
    linear-gradient(160deg, color-mix(in srgb, var(--accent) 7%, var(--surface)), var(--surface) 55%);
  text-align: center;
  word-break: break-word;
  margin-bottom: 0.75rem;
}

.step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-family: var(--mono);
  font-size: 0.88rem;
}
.step-list li {
  padding: 0.4rem 0.55rem;
  border-radius: 8px;
  background: var(--surface2);
  border: 1px solid var(--line);
  color: var(--muted);
}
.step-list li strong {
  color: var(--ink);
  font-weight: 650;
}

.rewrite-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.rewrite-btn {
  text-align: left;
  font-family: var(--mono);
  font-size: 0.88rem;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
}
.rewrite-btn:hover {
  border-color: var(--accent);
}
.rewrite-btn .law {
  display: block;
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 0.2rem;
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.law-ref {
  display: grid;
  gap: 0.4rem;
  margin-top: 0.5rem;
}
.law-chip {
  font-family: var(--mono);
  font-size: 0.82rem;
  padding: 0.4rem 0.55rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--muted);
}
.law-chip strong {
  color: var(--ink);
}

.quiz-choices {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin: 0.5rem 0;
}
.quiz-choices label {
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
  font-family: var(--mono);
  font-size: 0.88rem;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  cursor: pointer;
}
.quiz-choices label:has(input:checked) {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}

.bl-meta {
  margin: 0.45rem 0 0;
  font-size: 0.88rem;
  color: var(--muted);
}

.bl-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 0.75rem;
}