:root {
  --fundo: #f6f7f9;
  --cartao: #ffffff;
  --texto: #1d2430;
  --suave: #5b6575;
  --destaque: #0b6bcb;
  --borda: #e2e6ec;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--fundo);
  color: var(--texto);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  line-height: 1.6;
}

header {
  background: #10233f;
  color: #fff;
  padding: 40px 16px 32px;
  text-align: center;
}
header h1 { margin: 0; font-size: 2rem; letter-spacing: .5px; }
header p { margin: 6px 0 0; color: #c9d6ea; }

main { max-width: 860px; margin: 0 auto; padding: 24px 16px 40px; }

section {
  background: var(--cartao);
  border: 1px solid var(--borda);
  border-radius: 10px;
  padding: 20px 22px;
  margin-bottom: 18px;
}
section h2 { margin: 0 0 10px; font-size: 1.2rem; }
section h3 { margin: 18px 0 6px; font-size: 1rem; }

ul { padding-left: 20px; margin: 6px 0; }
a { color: var(--destaque); }

.grade { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px 24px; }
.rotulo { color: var(--suave); font-size: .9rem; display: block; }

.botao {
  display: inline-block;
  background: #1f9d55;
  color: #fff;
  text-decoration: none;
  padding: 10px 18px;
  border-radius: 8px;
  font-weight: 600;
  margin-top: 8px;
}

footer {
  text-align: center;
  color: var(--suave);
  font-size: .85rem;
  padding: 0 16px 32px;
}