@layer reset, base;

@layer base {
  html {
    --green: #86C232;
    --blue: #4448AC;
    --white: oklch(100% 0 none);
    --black: oklch(0% 0 none);
    --canvas-mix: var(--black);
    --text-mix: var(--white);
    --canvas: Canvas;
    --text: CanvasText;
    --title: var(--green);

    --body-font: 'Roboto Flex', Verdana, sans-serif;
    --title-font: 'Teko', Verdana, sans-serif;

    accent-color: var(--green);
    background-color: var(--canvas);
    background-image:
      linear-gradient(
        to top right,
        var(--canvas) 25%,
        transparent
      ),
      url('/img/eagle.png'),
      url('/img/cyber.jpg');
    background-blend-mode: multiply, soft-light, normal;
    background-size: cover, 20em, cover;
    background-attachment: fixed, scroll, fixed;
    color: var(--text);
    color-scheme: dark;
    font-family: var(--body-font);

    @supports (color: color-mix(in oklch, white, light-dark(white, black))) {
      --canvas: color-mix(in oklch, var(--blue), var(--canvas-mix) 75%);
      --text: color-mix(in oklch, var(--blue), var(--text-mix) 75%);
    }
  }

  body {
    --step-0: clamp(1.125rem, 1.0815rem + 0.2174vi, 1.25rem);
    --step-1: clamp(1.6875rem, 1.5497rem + 0.6891vi, 2.0838rem);
    --step-2: clamp(2.5313rem, 2.2035rem + 1.6389vi, 3.4736rem);
    --step-3: clamp(3.7969rem, 3.1034rem + 3.4672vi, 5.7905rem);
    --step-4: clamp(5.6953rem, 4.3188rem + 6.8826vi, 9.6528rem);

    --text-small: var(--step-0);
    --text-normal: var(--step-1);
    --text-large: var(--step-2);
    --text-xlarge: var(--step-3);
    --gap: clamp(2cqi, 0.5lh, 5cqi);
    font-size: var(--text-normal);
    font-weight: 100;
    padding: var(--gap);
  }

  .h1,
  h1, h2, h3, h4 {
    color: var(--title);
    font-family: var(--title-font);
    line-height: 1;
    margin: unset;
    text-wrap: balance;

    &:not(:first-child) {
      margin-block-start: 1rlh;
    }
  }

  h1, h2 { font-size: var(--text-large); }
  .h1 { font-size: var(--text-xlarge); }
  h3, h4 { font-size: var(--text-normal); }

  a:any-link {
    color: inherit;
    text-decoration: underline;
    text-decoration-color: var(--green);
    text-decoration-thickness: 0.1em;
    text-underline-offset: 0.2em;
  }

  a:focus-visible,
  a:hover,
  a:active {
    text-decoration-style: wavy;
  }

  button {
    background-color: var(--green);
    color: var(--canvas);
    font-family: var(--title-font);
    padding: 0 1em;

    &:focus-visible,
    &:hover,
    &:active {
      font-style: italic;
      outline-color: var(--green);
    }
  }

  :focus-visible {
    outline: medium dashed;
    outline-offset: 2px;
  }

  [method="dialog"] {
    margin-block-start: var(--gap);
  }

  small {
    font-size: var(--text-small);
  }
}

@layer reset {
  * { box-sizing: border-box; }
  html { block-size: 100%; }

  body {
    margin: unset;
    min-block-size: 100%;
  }

  picture { display: contents; }
  img { display: block; }

  img,
  svg {
    max-inline-size: 100%;
    block-size: auto;
  }

  input,
  button,
  textarea,
  select {
    font: inherit;
  }

  [aria-expanded=true] {
    box-shadow: 0 0 3em var(--green);
  }

  p:empty {
    display: none;
  }

  dialog {
    background: var(--canvas);
    color: var(--text);
  }
}