.container input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

.container {
  display: block;
  position: relative;
  cursor: pointer;
  user-select: none;
}

.checkmark {
  position: relative;
  top: 0;
  left: 0;
  height: 32px;
  width: 32px;
  background-color: #b87333;
  border: 2px solid #8b5a2b;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.3) inset;
  transition: all 0.3s ease;
}

.checkmark:before {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  right: 2px;
  bottom: 2px;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.1) 2px,
    rgba(0, 0, 0, 0.1) 4px
  );
}

.container input:checked ~ .checkmark {
  background-color: #ffcc66;
  border-color: #ffaa00;
  box-shadow:
    0 0 10px #ffcc66,
    0 0 0 1px rgba(0, 0, 0, 0.2) inset;
}

.container input:checked ~ .checkmark:after {
  content: "";
  position: absolute;
  top: 6px;
  left: 6px;
  right: 6px;
  bottom: 6px;
  background: rgba(255, 255, 255, 0.7);
  box-shadow: 0 0 8px rgba(255, 255, 255, 0.5) inset;
}

.container:hover .checkmark {
  background-color: #cd853f;
}

.container:hover input:checked ~ .checkmark {
  background-color: #ffd700;
  box-shadow:
    0 0 15px #ffd700,
    0 0 0 1px rgba(0, 0, 0, 0.2) inset;
}