details {
  --border-color-open: #02DFBF;
  border: 1px solid #02DFBF;
  padding: 1rem 1rem 0;
  margin-bottom: 0.5rem;
  font-weight: normal;
  border-radius: 5px;
  transition: border .2s;
  background: #022B36;
  
  &:hover,
  &[open] {
    border-color: var(--border-color-open);
  }

  &[open] {
    padding: 1rem;
  }

  summary {
    transition: all 0.3s;
    user-select: none;
    cursor: pointer;
    font-weight: bold;
    margin: -1rem -1rem 0;
    padding: 1rem;
    border-bottom: 1px solid transparent;
    position: relative;
    opacity: 0.74;
    
    &:hover {
      opacity: 1;
    }
    
    &::marker {
      content: none;
    }
    
    &::before {
      content: '\203A';
      position: absolute;
      right: 1rem;
      transform: translateY(-0.5rem) rotate(0deg);
      color: #6e7fa7;
      font-size: 1.6rem;
      transition: transform .3s;
    }
    
    [open] & {
      margin-bottom: 1rem;
      border-bottom: 1px solid var(--border-color-open);
      opacity: 1;

      &::before {
        transform: translateY(-0.3rem) rotate(90deg);
      }
    }
  }
}