:root {
  --fundo: #f7f7f5;
  --texto: #1d1d1b;
  --suave: #5f5f5a;
  --destaque: #2f6f4f;
}

@media (prefers-color-scheme: dark) {
  :root {
    --fundo: #161615;
    --texto: #ededea;
    --suave: #a3a39e;
    --destaque: #7cc49d;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 16px;
  background: var(--fundo);
  color: var(--texto);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

main {
  max-width: 560px;
}

h1 {
  font-size: clamp(2.5rem, 8vw, 4rem);
  margin: 0 0 8px;
  letter-spacing: -0.02em;
}

p {
  color: var(--suave);
  font-size: 1.125rem;
  line-height: 1.5;
}

.selo {
  display: inline-block;
  padding: 4px 12px;
  border: 1px solid var(--destaque);
  border-radius: 999px;
  color: var(--destaque);
  font-size: 0.875rem;
}

a {
  color: var(--destaque);
  text-decoration: none;
  font-weight: 600;
}

a:hover {
  text-decoration: underline;
}