.checkbox {
  display: inline-flex;
  align-items: center;
  cursor: pointer;
}

.checkbox input[type="checkbox"] {
  opacity: 0;
  position: absolute;
}

.checkbox .checkmark {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 20px;
  height: 20px;
  border: 1px solid #ccc;
  border-radius: 50%;
  transition: background-color 0.2s ease;
}

.checkbox input[type="checkbox"]:checked + .checkmark {
  background-color: #0078d4;
  border-color: #0078d4;
}

.checkbox input[type="checkbox"]:checked + .checkmark:after {
  content: "";
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #fff;
  transition: transform 0.2s ease;
  transform: scale(1);
}

.checkbox .checkmark:after {
  content: "";
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: transparent;
  transform: scale(0);
  transition: transform 0.2s ease;
}