opencode/packages/console/app/src/routes/[...404].css

[data-page="not-found"] {
  --color-text: hsl(224, 10%, 10%);
  --color-text-secondary: hsl(224, 7%, 46%);
  --color-text-dimmed: hsl(224, 6%, 63%);
  --color-text-inverted: hsl(0, 0%, 100%);

  --color-border: hsl(224, 6%, 77%);
}

[data-page="not-found"] {
  @media (prefers-color-scheme: dark) {
    --color-text: hsl(0, 0%, 100%);
    --color-text-secondary: hsl(224, 6%, 66%);
    --color-text-dimmed: hsl(224, 7%, 46%);
    --color-text-inverted: hsl(224, 10%, 10%);

    --color-border: hsl(224, 6%, 36%);
  }
}

[data-page="not-found"] {
  --padding: 3rem;
  --vertical-padding: 1.5rem;
  --heading-font-size: 1.375rem;

  @media (max-width: 30rem) {
    --padding: 1rem;
    --vertical-padding: 0.75rem;
    --heading-font-size: 1rem;
  }

  font-family: var(--font-mono);
  color: var(--color-text);
  padding: calc(var(--padding) + 1rem);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;

  a {
    color: var(--color-text);
    text-decoration: underline;
    text-underline-offset: var(--space-0-75);
    text-decoration-thickness: 1px;
  }

  [data-component="content"] {
    max-width: 40rem;
    width: 100%;
    border: 1px solid var(--color-border);
  }

  [data-component="top"] {
    padding: var(--padding);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: calc(var(--vertical-padding) / 2);
    text-align: center;

    [data-slot="logo-link"] {
      text-decoration: none;
    }

    img {
      height: auto;
      width: clamp(200px, 85vw, 400px);
    }

    [data-slot="logo dark"] {
      display: none;
    }

    @media (prefers-color-scheme: dark) {
      [data-slot="logo light"] {
        display: none;
      }
      [data-slot="logo dark"] {
        display: block;
      }
    }

    [data-slot="title"] {
      line-height: 1.25;
      font-weight: 500;
      text-align: center;
      font-size: var(--heading-font-size);
      color: var(--color-text);
      text-transform: uppercase;
      margin: 0;
    }
  }

  [data-component="actions"] {
    border-top: 1px solid var(--color-border);
    display: flex;

    [data-slot="action"] {
      flex: 1;
      text-align: center;
      line-height: 1.4;
      padding: var(--vertical-padding) 1rem;
      text-transform: uppercase;
      font-size: 1rem;

      a {
        display: block;
        width: 100%;
        height: 100%;
        color: var(--color-text);
        text-decoration: underline;
        text-underline-offset: var(--space-0-75);
        text-decoration-thickness: 1px;
      }
    }

    [data-slot="action"] + [data-slot="action"] {
      border-left: 1px solid var(--color-border);
    }

    @media (max-width: 40rem) {
      flex-direction: column;

      [data-slot="action"] + [data-slot="action"] {
        border-left: none;
        border-top: 1px solid var(--color-border);
      }
    }
  }
}