1/* Hide the default checkbox */
2.container input {
3  position: absolute;
4  opacity: 0;
5  cursor: pointer;
6  height: 0;
7  width: 0;
8  display: none;
9}
10
11.container {
12  --size: 50px;
13  width: var(--size);
14  display: block;
15  height: var(--size);
16  background-color: #191A1E;
17  border-radius: 100%;
18  cursor: pointer;
19  padding: 5px;
20  box-shadow: 1.5px 1.5px 3px #0e0e0e, -1.5px -1.5px 3px rgb(95 94 94 / 25%), inset 0px 0px 0px #0e0e0e, inset 0px -0px 0px #5f5e5e;
21}
22
23.container .checkmark {
24  width: 100%;
25  height: 100%;
26  border-radius: 50%;
27  box-shadow: 1.5px 1.5px 3px #0e0e0e, -1.5px -1.5px 3px rgb(95 94 94 / 25%), inset 0px 0px 0px #0e0e0e, inset 0px -0px 0px #5f5e5e;
28  transition: all ease 0.3s;
29  padding: 8px;
30}
31
32.container .checkmark svg {
33  opacity: 0;
34  transition: all ease 0.3s;
35}
36
37.container input:checked + .checkmark {
38  box-shadow: 0px 0px 0px #0e0e0e, 0px 0px 0px rgb(95 94 94 / 25%), inset 1.5px 1.5px 3px #0e0e0e, inset -1.5px -1.5px 3px #5f5e5e;
39}
40
41.container input:checked + .checkmark svg {
42  opacity: 1;
43}