.spoiler {
  margin: 24px 0 0;
}

.spoiler-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  color: var(--navy);
  text-transform: uppercase;
  font-size: var(--meta);
}

.spoiler-toggle::after {
  content: "▾";
  transition: transform 200ms ease;
}

.spoiler[open] .spoiler-toggle::after {
  transform: rotate(180deg);
}

.spoiler-panel {
  display: block;
  max-height: 0;
  overflow: hidden;
  padding: 0;
  opacity: 0;
  color: var(--muted);
  max-width: 72ch;
  transition: max-height 200ms ease, opacity 200ms ease, padding 200ms ease;
}

.spoiler[open] .spoiler-panel {
  max-height: 80em;
  padding: 16px 0 8px;
  opacity: 1;
}

.spoiler-panel h3 {
  color: var(--navy);
  font-size: 18px;
  text-transform: uppercase;
  margin-top: 1.4em;
}