.signoff {
  --signoff-rule: color-mix(in srgb, var(--text-primary) 24%, transparent);
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: clamp(1.25rem, 4vw, 3.5rem);
  align-items: start;
  padding: clamp(1rem, 4vw, 3rem);
  color: var(--text-primary);
  background: var(--bg-card);
  border: 1px solid var(--signoff-rule);
  border-radius: 0.8rem;
  scroll-margin-top: 6rem;
}

.signoff [hidden] {
  display: none;
}

.signoff-label {
  color: var(--editorial-accent);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.signoff h3 {
  margin-block: 0.4rem 0.8rem;
  font: 400 clamp(1.75rem, 4vw, 3.15rem)/1.06 Georgia, Cambria, serif;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

.signoff-brief > p:not(.signoff-label),
.signoff-fallback,
.signoff-result {
  font-size: 0.88rem;
  line-height: 1.55;
}

.signoff-brief > p:not(.signoff-label),
.signoff-reason,
.signoff-next dd {
  color: var(--text-secondary);
}

.signoff-comparison {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.6rem;
  margin: 1.25rem 0 0;
}

.signoff-comparison > div {
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--signoff-rule);
  border-radius: 0.4rem;
  background: var(--bg-primary);
}

.signoff-comparison > div:last-child {
  border-color: color-mix(in srgb, currentColor 48%, transparent);
}

.signoff dt {
  color: var(--text-secondary);
  font-size: 0.72rem;
  line-height: 1.4;
}

.signoff dd {
  margin: 0.2rem 0 0;
}

.signoff-comparison dd {
  font-weight: 650;
}

.signoff-choices {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.signoff-choices button {
  min-height: 44px;
  min-width: 4.4rem;
  padding: 0.5rem 0.9rem;
  border: 1px solid var(--signoff-rule);
  border-radius: 0.35rem;
  background: var(--bg-primary);
  color: var(--text-primary);
  font: 650 0.84rem/1.2 var(--font-body, system-ui, sans-serif);
  cursor: pointer;
  transition: border-color 180ms ease, background-color 180ms ease;
}

.signoff-choices button:hover {
  border-color: var(--editorial-accent);
}

.signoff-choices button[aria-pressed="true"] {
  border-color: var(--editorial-accent);
  background: var(--editorial-accent);
  color: var(--bg-primary);
}

.signoff :is(button, summary):focus-visible {
  outline: 2px solid var(--editorial-accent);
  outline-offset: 3px;
}

.signoff-result {
  margin-top: 1rem;
  padding: 0.9rem 1rem;
  min-height: 3.3rem;
  border-inline-start: 2px solid var(--editorial-accent);
  background: var(--bg-primary);
}

.signoff-verdict {
  font-weight: 650;
}

.signoff-reason:not(:empty) {
  margin-top: 0.4rem;
}

.signoff-next {
  display: grid;
  gap: 0.7rem;
  margin: 0.8rem 0 0;
  padding-top: 0.8rem;
  border-top: 1px solid var(--signoff-rule);
}

.signoff-next dt {
  color: var(--text-primary);
  font-weight: 650;
}

.signoff-fallback summary {
  color: var(--editorial-accent);
  cursor: pointer;
}

.signoff-fallback p {
  margin: 0.7rem 0 0;
}

@media (max-width: 670px) {
  .signoff {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .signoff-choices button {
    transition: none;
  }
}