:root {
  --verde: #1b9e5a;
  --verde-escuro: #157f48;
  --texto: #1a1a1a;
  --texto-suave: #555;
  --borda: #e5e7eb;
  --bg-suave: #f7f8fa;
  --amarelo-soft: #fff7d6;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--texto);
  background: #fff;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--verde); text-decoration: none; }
a:hover { text-decoration: underline; }

header.topo {
  background: var(--verde);
  color: #fff;
  padding: 18px 20px;
}
header.topo .wrap {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
header.topo a { color: #fff; }
header.topo .logo {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.01em;
}
header.topo nav a {
  margin-left: 16px;
  font-size: 14px;
  opacity: 0.92;
}
header.topo nav a:hover { opacity: 1; }

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 20px 80px;
}

h1 {
  font-size: 28px;
  line-height: 1.25;
  margin: 0 0 4px;
  letter-spacing: -0.015em;
}
h2 {
  font-size: 20px;
  margin: 32px 0 8px;
  letter-spacing: -0.01em;
}
h3 { font-size: 17px; margin: 24px 0 6px; }

p { margin: 0 0 12px; }

.atualizado {
  color: var(--texto-suave);
  font-size: 14px;
  margin-bottom: 24px;
}

ul {
  padding-left: 20px;
  margin: 0 0 14px;
}
li { margin-bottom: 4px; }

.nota {
  background: var(--amarelo-soft);
  border-radius: 8px;
  padding: 14px 16px;
  font-size: 14px;
  color: #5a4a00;
  margin: 24px 0;
}

.card {
  background: var(--bg-suave);
  border: 1px solid var(--borda);
  border-radius: 12px;
  padding: 20px;
  margin: 16px 0;
}
.card h2 { margin-top: 0; }

.btn {
  display: inline-block;
  background: var(--verde);
  color: #fff;
  padding: 12px 20px;
  border-radius: 8px;
  font-weight: 600;
  margin-top: 8px;
}
.btn:hover { background: var(--verde-escuro); text-decoration: none; }

footer {
  border-top: 1px solid var(--borda);
  padding: 24px 20px;
  text-align: center;
  font-size: 13px;
  color: var(--texto-suave);
}
footer a { color: var(--texto-suave); margin: 0 10px; }

@media (max-width: 540px) {
  h1 { font-size: 24px; }
  h2 { font-size: 18px; }
  header.topo nav a { margin-left: 12px; }
}