zapupenec/diary_app

.container {
  --border: 2px;
  --size: 24px;
  --radius: 6px;
  font-size: 18px;
  font-weight: 300;
  line-height: 18px;
  color: var(--text);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  user-select: none;
  cursor: pointer;
  position: relative;
  padding: var(--border);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  clip: rect(0 0 0 0);
  overflow: hidden;
}

/* not checked */
.checkbox {
  position: relative;
  width: calc(var(--size) - var(--border));
  height: calc(var(--size) - var(--border));
  background: var(--background);
  border-radius: var(--radius);
}

.checkbox::before {
  content: '';
  display: block;
  position: absolute;
  z-index: -1;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  margin: calc(-1 * var(--border));
  background: var(--button-grey);
  border-radius: calc(var(--radius) + var(--border));
  -webkit-box-shadow: var(--shadow);
  -moz-box-shadow: var(--shadow);
  box-shadow: var(--shadow);
}

.checkbox.invalid::before {
  background: var(--error);
}

.input:hover + .checkbox::before,
.input:focus + .checkbox::before {
  background: var(--text);
}

/* checked */
.input:checked + .checkbox {
  background: no-repeat center / contain url('assets/icons/check.svg'), var(--button);
}

.input:checked + .checkbox::before {
  background: var(--button);
}

.input:hover:checked + .checkbox::before,
.input:focus:checked + .checkbox::before {
  background: var(--text);
}

/* disabled */
.input:disabled + .checkbox {
  background: rgba(0, 0, 0, 0.1);
  cursor: default;
  pointer-events: none;
}

.input:disabled:checked + .checkbox {
  background: no-repeat center url('assets/icons/check.svg'), rgba(0, 0, 0, 0.1);
  cursor: default;
  pointer-events: none;
}

.input:disabled + .checkbox::before,
.input:disabled:checked + .checkbox::before {
  background: rgba(0, 0, 0, 0.1);
  cursor: default;
  pointer-events: none;
}

@media (max-width: 1023px) {
  .container {
    --size: 16px;
    --radius: 4px;
    font-size: 12px;
    line-height: 12px;
    gap: 10px;
  }
}