.accordion {
  max-width: 1000px;
  margin: 40px auto;
}

.accordion-item {
  border-bottom: 1px solid #e5e5e5;
}

.accordion-item input {
  display: none;
}

.accordion-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 10px;
  font-size: 24px;
  cursor: pointer;
  transition: 0.2s;
}

.accordion-title:hover {
  background: #f5f5f5;
}

.arrow {
  width: 10px;
  height: 10px;
  border-right: 2px solid #000;
  border-bottom: 2px solid #000;
  transform: rotate(45deg);
  transition: 0.3s;
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
  display: flex;
  flex-direction: column;
  padding-left: 20px;
}

.accordion-content a {
  padding: 8px 0;
  text-decoration: none;
  border-bottom: none;
}

.accordion-content a:hover {
}

.accordion-item input:checked ~ .accordion-content {
  max-height: 1000px;
  padding-bottom: 15px;
}

.accordion-item input:checked + .accordion-title .arrow {
  transform: rotate(-135deg);
}