details {
  border-radius: 3px;
  border: 1px solid var(--border-color);
  display: inline-block;
  width: 100%;
  margin: 1px 0px;
}

summary::before {
  content: "❯ ";
  justify-self: center;
  align-self: baseline;
  font-size: 14px;
  transform: rotate(0deg) translateX(0px);
  transition-property: transform;
  transition-duration: 0.2s;
}

details[open] summary::before {
  display: inline-block;
  transform: rotate(90deg) translateX(0px);
}

summary {
  background: var(--main-color-lighten);
  color: var(--white-color);
  font-weight: bold;
  cursor: pointer;
  user-select: none;
  display: grid;
  grid-template-columns: 25px 1fr;
}

summary:empty:after {
  content: "spoiler";
}

details > div {
  padding: 5px;
}