normalize.css

@layer normalize {
  *,
  :before,
  ::after {
    box-sizing: border-box;
  }

  * {
    scrollbar-width: thin;
  }

  :where(html) {
    --_page-bg-color: var(--surface-default);

    accent-color: var(--primary);
    background-color: var(--_page-bg-color);
    block-size: 100%;
    caret-color: var(--primary);
    color: var(--text-color-2);
    font-family: var(--font-sans);
    interpolate-size: allow-keywords;
    line-height: var(--font-lineheight-4);

    /* https://kilianvalkhof.com/2022/css-html/your-css-reset-needs-text-size-adjust-probably/ */
    -moz-text-size-adjust: none;
    -webkit-text-size-adjust: none;
    text-size-adjust: none;

    @media (--motionOK) {
      scroll-behavior: smooth;
    }
  }

  :where(body) {
    -moz-osx-font-smoothing: grayscale;
    -webkit-font-smoothing: antialiased;
    container-type: inline-size;
    font-size: 16px;
    font-synthesis: style;
    font-weight: 400;
    inline-size: 100%;
    margin: 0;
    min-block-size: 100%;
    min-inline-size: 320px;
    position: relative;
    text-rendering: optimizeLegibility;
  }

  /* TODO */
  :where(:not(dialog, popover)) {
    margin: 0;
  }

  :where(:not(fieldset, progress, meter)) {
    background-origin: border-box;
    background-repeat: no-repeat;
    border-style: solid;
    border-width: 0;
  }

  :where(fieldset) {
    border: var(--field-border-width) solid var(--field-border-color);
    border-radius: var(--field-border-radius);
    padding: var(--size-3);
    display: grid;
    gap: var(--size-3);
  }

  :where(input, button, textarea),
  :where(input[type="file"])::-webkit-file-upload-button {
    color: inherit;
    font-size: inherit;
    font: inherit;
    letter-spacing: inherit;
  }

  :where(input):-webkit-autofill,
  :where(input):-webkit-autofill:hover,
  :where(input):-webkit-autofill:focus,
  :where(textarea):-webkit-autofill,
  :where(textarea):-webkit-autofill:hover,
  :where(textarea):-webkit-autofill:focus,
  :where(select):-webkit-autofill,
  :where(select):-webkit-autofill:hover,
  :where(select):-webkit-autofill:focus,
  :where(input):autofill,
  :where(input):autofill:hover,
  :where(input):autofill:focus,
  :where(textarea):autofill,
  :where(textarea):autofill:hover,
  :where(textarea):autofill:focus,
  :where(select):autofill,
  :where(select):autofill:hover,
  :where(select):autofill:focus {
    -webkit-text-fill-color: var(--text-color-2);
    -webkit-box-shadow: 0 0 0px 1e5px var(--well-1) inset;
    transition: background-color 5000s ease-in-out 0s;
  }

  ::placeholder {
    color: var(--text-color-2);
  }

  ::-moz-placeholder {
    opacity: 1;
  }

  :focus-visible {
    /* Inverts the --_page-bg-color */
    --_focus-visible-color: rgb(
      from var(--_page-bg-color) calc(255 - r) calc(255 - g) calc(255 - b)
    );

    border-radius: var(--border-radius, 0px);
    outline: 2px solid var(--_focus-visible-color);
    outline-offset: 2px;
  }

  @media (--motionOK) {
    :where(:focus-visible) {
      transition: outline-offset 145ms var(--ease-2);
    }
    :where(:not(:active):focus-visible) {
      transition-duration: 0.15s;
    }
  }

  :where(:not(:active):focus-visible) {
    outline-offset: var(--outline-offset, 0px);
  }

  :where(
    a[href],
    area,
    button,
    input:not(
        [type="text"],
        [type="email"],
        [type="number"],
        [type="password"],
        [type=""],
        [type="tel"],
        [type="url"]
      ),
    label[for],
    select,
    summary
  ) {
    cursor: pointer;
  }

  :where(
    a[href],
    area,
    button,
    [role="button"],
    input,
    label[for],
    select,
    summary,
    textarea,
    [tabindex]:not([tabindex*="-"])
  ) {
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
  }

  :where(img, svg, video, canvas, audio, iframe, embed, object) {
    display: block;
  }

  :where(img, svg, video) {
    block-size: auto;
    max-inline-size: 100%;
  }

  :where(svg:not([width])) {
    inline-size: var(--size-7);
  }

  :where(dt:not(:first-of-type)) {
    margin-block-start: var(--size-5);
  }

  :where(figure) {
    display: grid;
    gap: var(--size-2);
    place-items: center;
  }

  :target {
    scroll-margin-block-start: 2rem;
  }
}