@layer trace.elements {
  :where(:root) {
    --trace-button-color: light-dark(
      var(--trace-primary-darker),
      var(--trace-secondary)
    );
    --trace-button-contrast: light-dark(
      var(--trace-secondary),
      var(--trace-primary-dark)
    );
    --trace-button-outline-color: var(--trace-button-color);
    --trace-button-radius: var(--trace-radius-control);
    --trace-button-font-size: 1rem;
    --trace-button-line-height: 1.5rem;
    --trace-button-padding-block: 0.375rem;
    --trace-button-padding-inline: 0.75rem;
    --trace-button-box-shadow: var(--trace-shadow);
    --trace-button-icon-gap: 0.5em;
  }

  :where(button[type="reset"], input[type="reset"]) {
    --trace-button-color: var(--trace-primary-light);
    --trace-button-contrast: var(--trace-secondary-lighter);
    --trace-button-outline-color: var(--trace-button-color);
  }

  :where(
    button,
    input[type="button"],
    input[type="submit"],
    input[type="reset"]
  ) {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--trace-button-icon-gap);
    box-sizing: border-box;
    padding: var(--trace-button-padding-block)
      var(--trace-button-padding-inline);
    border: 2px solid var(--trace-button-border, var(--trace-button-color));
    border-radius: var(--trace-button-radius);
    background-color: var(--trace-button-bg, var(--trace-button-color));
    color: var(--trace-button-text, var(--trace-button-contrast));
    font-size: var(--trace-button-font-size);
    font-weight: 400;
    line-height: var(--trace-button-line-height);
    text-align: center;
    cursor: pointer;
    transition:
      background-color 200ms ease-in-out,
      color 200ms ease-in-out,
      border-color 200ms ease-in-out,
      box-shadow 200ms ease-in-out,
      transform 200ms ease-in-out;
  }

  :where(
    button:hover:not(:disabled),
    input[type="button"]:hover:not(:disabled),
    input[type="submit"]:hover:not(:disabled),
    input[type="reset"]:hover:not(:disabled)
  ) {
    box-shadow: var(--trace-button-box-shadow);
  }

  :where(
    button:active:not(:disabled),
    input[type="button"]:active:not(:disabled),
    input[type="submit"]:active:not(:disabled),
    input[type="reset"]:active:not(:disabled)
  ) {
    transform: scale(0.95);
    box-shadow: var(--trace-button-box-shadow);
  }

  :where(
    button:focus-visible,
    input[type="button"]:focus-visible,
    input[type="submit"]:focus-visible,
    input[type="reset"]:focus-visible
  ) {
    outline: 2px solid var(--trace-button-outline-color);
    outline-offset: 2px;
    box-shadow: none;
  }

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

  :where(button[aria-busy="true"])::after {
    content: "";
    position: absolute;
    inset: 0;
    margin: auto;
    inline-size: var(--trace-loader-size, 1em);
    block-size: var(--trace-loader-size, 1em);
    border-radius: var(--trace-loader-radius, 2px);
    background-color: var(
      --trace-button-loader-color,
      var(--trace-button-text, var(--trace-button-contrast))
    );
    animation: trace-square-rotate var(--trace-loader-duration, 3s) ease-in-out
      infinite;
    pointer-events: none;
  }

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

  @media (forced-colors: active) {
    :where(
      button:disabled,
      input[type="button"]:disabled,
      input[type="submit"]:disabled,
      input[type="reset"]:disabled
    ) {
      opacity: 1;
      color: GrayText;
      border-color: GrayText;
    }
  }
  :where(button[aria-busy="true"]) {
    position: relative;
    cursor: wait;
    opacity: 1;
    box-shadow: none;
    transform: none;
    color: transparent;
  }

  @media (prefers-reduced-motion: reduce) {
    :where(button[aria-busy="true"])::after {
      animation: none;
    }
  }

  @media (forced-colors: active) {
    :where(button[aria-busy="true"]) {
      forced-color-adjust: none;
      background-color: ButtonFace;
      border-color: ButtonText;
    }

    :where(button[aria-busy="true"])::after {
      background-color: ButtonText;
    }
  }

  :where(button[aria-busy="true"] > *) {
    opacity: 0;
  }
}