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

html, body {
  height: 100%;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: #1a3a3a;
  background: linear-gradient(135deg, #e6f7f5 0%, #c9efe9 100%);
}

main {
  text-align: center;
  padding: 2rem;
}

.turtle {
  font-size: 5rem;
  line-height: 1;
  margin-bottom: 1rem;
}

h1 {
  font-size: 3rem;
  margin: 0 0 0.5rem;
}

p {
  font-size: 1.125rem;
  opacity: 0.8;
  margin: 0;
}