@layer base {
  :root {
    --font-family-main: "Roboto Mono", monospace;
    --font-family-heading: "Roboto Mono", monospace;

    --font-color-dark: #0c0c0c;
    --font-color-light: #d1d5db;
    --font-color-link: #0000ee;

    --font-size-base: 1rem;
    --font-size-scale: 1.2;
    --font-size-h1: calc(var(--font-size-h2) * var(--font-size-scale) * 1.2);
    --font-size-h2: calc(var(--font-size-h3) * var(--font-size-scale));
    --font-size-h3: calc(var(--font-size-h4) * var(--font-size-scale));
    --font-size-h4: calc(var(--font-size-h5) * var(--font-size-scale));
    --font-size-h5: calc(var(--font-size-h6) * var(--font-size-scale));
    --font-size-h6: var(--font-size-base);
    --font-size-small: calc(var(--font-size-base) / var(--font-size-scale));

    --color-background-light: ;
    --color-background-dark: #121826;
  }

  html {
    box-sizing: border-box;
  }

  *,
  *::before,
  *::after {
    box-sizing: inherit;
    margin: 0;
    padding: 0;
  }

  body {
    font-family: var(--font-family-main);
    font-size: var(--font-size-base);
    color: var(--font-color-light);
    background-color: var(--color-background-dark);
    line-height: 1.5;
  }

  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    font-family: var(--font-family-heading);
    font-weight: 700;
  }

  h1 {
    font-size: var(--font-size-h1);
  }

  h2 {
    font-size: var(--font-size-h2);
  }

  h3 {
    font-size: var(--font-size-h3);
  }

  h4 {
    font-size: var(--font-size-h4);
  }

  h5 {
    font-size: var(--font-size-h5);
  }

  h6 {
    font-size: var(--font-size-h6);
  }

  a {
    color: var(--font-color-link);
    text-decoration: underline;
  }

  a:hover {
    text-decoration: none;
  }

  img {
    max-width: 100%;
    display: block;
  }

  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
  }

  /* h/t Scott O'Hara https://css-tricks.com/inclusively-hidden/ */
  .sr-only:not(:focus):not(:active) {
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    height: 1px;
    overflow: hidden;
    position: absolute;
    white-space: nowrap;
    width: 1px;
  }
}

.outer-container {
  min-height: 100vh;
  max-width: 48rem;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
}

.inner-container {
  padding: 4rem 1rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.header-name {
  color: #fff;
  text-transform: uppercase;
  margin-bottom: 64px;
  font-size: var(--font-size-h2);
}

.paragraph {
  margin-bottom: 32px;
}

.footer {
  margin-top: 64px;
  display: flex;
  justify-content: space-between;
  gap: 32px;
}

.links {
  list-style: none;
  display: flex;
  align-content: center;
  gap: 16px;
}

.link-icon {
  height: 24px;
  fill: rgb(209, 213, 219);
  transition: fill 0.2s;
}

.link-icon:hover {
  fill: #fff;
}

.farewell {
  border: 2px solid var(--font-color-light);
  border-radius: 100px;
  padding: 1rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-content: center;
  align-items: center;
  gap: 0.5rem;
}

.farewell h2 {
  text-align: center;
  font-size: var(--font-size-h5);
}

.farewell a {
  color: var(--font-color-light);
}

@media (max-width: 420px) {
  .header-name {
    font-size: var(--font-size-h3);
  }

  .footer p {
    font-size: var(--font-size-small);
  }

  .link-icon {
    height: 18px;
  }
}