@layer trace.elements {
  :where(:root) {
    --trace-radio-size: 1.25rem;
    --trace-radio-color: light-dark(
      var(--trace-primary),
      var(--trace-secondary)
    );
  }

  :where(input[type="radio"]) {
    appearance: none;
    -webkit-appearance: none;
    position: relative;
    display: inline-block;
    box-sizing: border-box;
    flex-shrink: 0;
    inline-size: var(--trace-radio-size);
    block-size: var(--trace-radio-size);
    margin: 2px;
    padding: 0;
    border: 2px solid var(--trace-radio-color);
    border-radius: 50%;
    background: var(--trace-radio-bg, var(--trace-control-bg));
    vertical-align: middle;
    cursor: pointer;
    transition:
      transform 250ms ease-in-out,
      border-color 250ms ease-in-out;
  }

  :where(input[type="radio"])::before {
    content: "";
    position: absolute;
    inset: -2px;
    box-sizing: border-box;
    border: 2px solid var(--trace-radio-color);
    border-radius: 50%;
    background-color: transparent;
    transition:
      border-color 250ms ease-in-out,
      background-color 250ms ease-in-out,
      transform 250ms ease-in-out;
  }

  :where(input[type="radio"]:checked)::before {
    background-color: var(--trace-radio-color);
    transform: scale(0.6);
  }

  :where(input[type="radio"]:focus-visible) {
    outline: 2px solid var(--trace-radio-color);
    outline-offset: 2px;
  }

  :where(label:has(> input[type="radio"])) {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
  }

  :where(
    input[type="radio"]:active:not(:disabled),
    label:active > input[type="radio"]:not(:disabled)
  ) {
    transform: scale(0.9);
  }

  :where(input[type="radio"]:disabled) {
    opacity: 0.5;
    cursor: not-allowed;
  }

  :where(label:has(> input[type="radio"]:disabled)) {
    cursor: not-allowed;
  }

  :where(label > input[type="radio"]:disabled ~ span) {
    opacity: 0.5;
  }

  @media (prefers-reduced-motion: reduce) {
    :where(input[type="radio"]) {
      transition: none;
      transform: none;
    }

    :where(input[type="radio"])::before {
      transition: none;
      transform: none;
    }

    :where(input[type="radio"]:checked)::before {
      transform: scale(0.6);
    }
  }

  @media (forced-colors: active) {
    :where(input[type="radio"]) {
      appearance: auto;
      -webkit-appearance: auto;
    }

    :where(input[type="radio"])::before {
      content: none;
    }
  }

  :where(input[type="radio"][aria-invalid="true"]) {
    --trace-radio-color: var(--trace-danger);
  }
}