body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}


fieldset {
  margin: 0;
  border: 1px solid yellow;
}

label { display: block }
input[type=radio] { accent-color: yellow }

body:has(#mysterious:checked) { text-transform: lowercase }
body:has(#expected:checked) { text-transform: none }
body:has(#unreadable:checked) { text-transform: uppercase }

header { margin-top: 0.5rem }

#logo, #bunny { touch-action: manipulation }

#bunny {
  display: block;
  margin: 0 auto;
}

img { image-rendering: pixelated }

section {
  margin-top: 3em;
  max-width: 23rem;
}

section > * { padding: 0 var(--horizontal-margin) }

h1, h2, h3 { text-align: center }

h2, h3 {
  text-transform: uppercase;
  color: var(--blue);
}

h1 { margin: 1.5rem 0 }

h2 {
  background: var(--blue);
  color: black;
  padding: 0 var(--horizontal-margin);
  margin: 0.5rem 0;
  line-height: 1.25rem;
}

h3 { margin-top: 2rem }

ul { padding-inline-start: 1.5rem }
li { margin-top: 0.5rem }

p.aside {
  color: var(--aside-color);
  margin-top: 1rem;
  padding: 0 1.5rem;
}

p.slow > * {
  display: block;
  text-align: center;
}

em      { color: var(--pink) }
strong  { color: yellow }
small   { color: var(--aside-color) }

a {
  color: inherit;
}

blockquote {
  margin: 1rem 2.5rem;
  color: yellow;
}

a.secret {
  text-decoration: none;
  cursor: text;
  display: inline-block;
  animation: float 12s infinite;
  animation-timing-function: step-end;
}

@keyframes float {
  25% { transform: translateY(1px) }
  50% { transform: translateY( 0px) }
  75% { transform: translateY(-1px) }
}

footer {
  text-align: center;
  margin-top: 4rem;
}