* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: Arial, sans-serif; line-height: 1.5; }

/* Cabeçalho */
header {
  display: flex; justify-content: space-between; align-items: center;
  background: #4DB8AC; padding: 10px 20px; color: #fff;
}
.logo { height: 50px; }
.menu ul { display: flex; list-style: none; }
.menu li { margin-left: 20px; }
.menu a { color: #fff; text-decoration: none; font-weight: bold; }
.menu-toggle { display: none; background: none; border: none; color: #fff; font-size: 1.5em; }

/* Banner */
.banner img { width: 100%; height: auto; display: block; }

/* Conteúdo */
.conteudo { text-align: center; padding: 40px 20px; }
.btn-pdf {
  display: inline-block; margin-top: 15px; padding: 12px 25px;
  background: #008cba; color: #fff; text-decoration: none;
  font-weight: bold; border-radius: 6px; transition: 0.3s;
}
.btn-pdf:hover { background: #005f73; }

/* Rodapé */
footer { background: #004466; color: #fff; text-align: center; padding: 15px; }

/* Responsivo */
@media (max-width: 768px) {
  .menu ul { display: none; flex-direction: column; background: #003344; padding: 10px; }
  .menu ul.active { display: flex; }
  .menu-toggle { display: block; }
}