Checkbox 02

<label class="checkbox-basic">
  <input class="checkbox-basic__input" type="checkbox" />
  <span class="checkbox-basic__text">テキスト</span>
</label>

/* reset */
:where(label).checkbox-basic {
  font: inherit;
  cursor: pointer;
}

:where(input).checkbox-basic__input {
  box-sizing: border-box;
  font: inherit;
  appearance: none;
}

/* snippet */
.checkbox-basic {
  --checkbox-border: #e7e7e7;
  --checkbox-text-color: #364153;
  --checkbox-background: #fff;
  --checkbox-accent: #2b36f5;
  --checkbox-focus-color: var(--checkbox-accent);

  display: inline-flex;
  column-gap: 10px;
  align-items: center;
  font-size: 14px;
  line-height: 1.6;
  color: var(--checkbox-text-color);
}

.checkbox-basic__input {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  cursor: pointer;
  background-color: var(--checkbox-background);
  border: 1px solid var(--checkbox-border);
  border-radius: 4px;

  &:checked {
    background-color: var(--checkbox-accent);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='none'%3E%3Cpath d='M2.5 6l2.5 2.5 4.5-5' stroke='%23fff' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    border-color: var(--checkbox-accent);
  }

  &:focus:not(:focus-visible) {
    outline: none;
  }

  &:focus-visible {
    outline: 2px solid var(--checkbox-focus-color);
    outline-offset: 2px;
  }
}

<div class="checkbox-group">
  <label class="checkbox-group__item">
    <input
      class="checkbox-group__input"
      type="checkbox"
      name="checkbox-group"
      value="option-1"
      checked
    />
    <span class="checkbox-group__text">テキスト1</span>
  </label>
  <label class="checkbox-group__item">
    <input
      class="checkbox-group__input"
      type="checkbox"
      name="checkbox-group"
      value="option-2"
    />
    <span class="checkbox-group__text">テキスト2</span>
  </label>
  <label class="checkbox-group__item">
    <input
      class="checkbox-group__input"
      type="checkbox"
      name="checkbox-group"
      value="option-3"
    />
    <span class="checkbox-group__text">テキスト3</span>
  </label>
</div>

/* reset */
:where(label).checkbox-group__item {
  font: inherit;
  cursor: pointer;
}

:where(input).checkbox-group__input {
  box-sizing: border-box;
  font: inherit;
  appearance: none;
}

/* snippet */
.checkbox-group {
  --checkbox-border: #e7e7e7;
  --checkbox-text-color: #364153;
  --checkbox-background: #fff;
  --checkbox-accent: #2b36f5;
  --checkbox-focus-color: var(--checkbox-accent);

  display: grid;
  row-gap: 12px;
}

.checkbox-group__item {
  display: inline-flex;
  column-gap: 10px;
  align-items: center;
  font-size: 14px;
  line-height: 1.6;
  color: var(--checkbox-text-color);
}

.checkbox-group__input {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  cursor: pointer;
  background-color: var(--checkbox-background);
  border: 1px solid var(--checkbox-border);
  border-radius: 4px;

  &:checked {
    background-color: var(--checkbox-accent);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='none'%3E%3Cpath d='M2.5 6l2.5 2.5 4.5-5' stroke='%23fff' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    border-color: var(--checkbox-accent);
  }

  &:focus:not(:focus-visible) {
    outline: none;
  }

  &:focus-visible {
    outline: 2px solid var(--checkbox-focus-color);
    outline-offset: 2px;
  }
}