@layer base {
  html { color-scheme: light; }

  body {
    font-family: var(--font-body);
    font-size: var(--step-0);
    color: var(--ink);
    background:
      radial-gradient(60vmax 40vmax at 8% -10%, #fff3b0 0%, transparent 60%),
      linear-gradient(180deg, var(--sky) 0%, #e6f4ff 60%, #f3f9ff 100%);
    background-attachment: fixed;
  }

  h1, h2, h3, h4, .display {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.05;
    letter-spacing: -0.01em;
  }

  h1 { font-size: var(--step-4); }
  h2 { font-size: var(--step-3); }
  h3 { font-size: var(--step-2); }

  p { max-width: var(--measure); }

  a { text-decoration-thickness: 2px; text-underline-offset: 3px; }
  a:hover { color: var(--brick-deep); }

  :focus-visible {
    outline: 3px solid var(--ink);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
  }

  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: 0.01ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: 0.01ms !important;
    }
  }
}