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

body {
  font-family: Arial, Helvetica, sans-serif;
  background: #f5f7fb;
  color: #1d2636;
}

html {
  scroll-behavior: smooth;
}

.topo {
  background: #0b1220;
  color: white;
  position: sticky;
  top: 0;
  z-index: 10;
}

.menu {
  max-width: 1100px;
  margin: auto;
  padding: 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.menu h1 {
  color: #38bdf8;
  font-size: 24px;
}

.menu ul {
  display: flex;
  gap: 16px;
  list-style: none;
}

.menu a {
  color: white;
  text-decoration: none;
  font-weight: 600;
}

#btn-menu {
  display: none;
  background: none;
  border: none;
  color: white;
  font-size: 28px;
}

.hero {
  min-height: 76vh;
  background:
    linear-gradient(135deg, rgba(15, 23, 42, 0.94), rgba(3, 105, 161, 0.88)),
    url("https://images.unsplash.com/photo-1558494949-ef010cbdcc31?auto=format&fit=crop&w=1600&q=80");
  background-position: center;
  background-size: cover;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 20px;
}

.hero h2 {
  font-size: 48px;
  margin-bottom: 16px;
}

.hero p {
  font-size: 20px;
  margin-bottom: 28px;
  max-width: 760px;
}

.selo {
  display: inline-block;
  margin-bottom: 18px;
  padding: 8px 14px;
  border: 1px solid rgba(255,255,255,0.35);
  border-radius: 999px;
  color: #d9f99d;
  font-size: 14px;
  font-weight: bold;
  text-transform: uppercase;
}

.acoes {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.botao, form button {
  background: #38bdf8;
  color: #0b1220;
  padding: 14px 22px;
  border-radius: 8px;
  text-decoration: none;
  border: none;
  font-weight: bold;
  cursor: pointer;
}

.botao:hover, form button:hover {
  background: #7dd3fc;
}

.botao.secundario {
  background: transparent;
  color: white;
  border: 1px solid rgba(255,255,255,0.5);
}

.botao.secundario:hover {
  background: rgba(255,255,255,0.12);
}

.secao {
  max-width: 1100px;
  margin: auto;
  padding: 70px 20px;
  text-align: center;
}

.secao h2 {
  font-size: 32px;
  margin-bottom: 30px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.cards.tres {
  grid-template-columns: repeat(3, 1fr);
}

.card {
  background: white;
  padding: 28px;
  border-radius: 8px;
  box-shadow: 0 8px 22px rgba(0,0,0,0.08);
  border-top: 4px solid #38bdf8;
}

.card h3 {
  color: #0369a1;
  margin-bottom: 12px;
}

.backup {
  max-width: 100%;
  background: #ecfdf5;
  text-align: left;
}

.backup .botao {
  display: inline-block;
  margin-top: 22px;
}

.etiqueta {
  display: inline-block;
  margin-bottom: 14px;
  color: #166534;
  font-weight: bold;
  text-transform: uppercase;
  font-size: 14px;
}

.backup-painel {
  background: white;
  border-radius: 8px;
  padding: 28px;
  box-shadow: 0 8px 22px rgba(0,0,0,0.08);
  border-left: 5px solid #22c55e;
}

.backup-painel h3 {
  color: #166534;
  margin-bottom: 16px;
}

.backup-painel ul {
  display: grid;
  gap: 12px;
  padding-left: 20px;
}

.backup-painel li {
  line-height: 1.5;
}

.backup-planos {
  max-width: 1100px;
  margin: 30px auto 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.backup-planos div {
  background: #0f172a;
  color: white;
  padding: 22px;
  border-radius: 8px;
}

.backup-planos strong {
  color: #86efac;
  display: block;
  margin-bottom: 10px;
}

.backup-planos p {
  line-height: 1.5;
}

.destaque {
  max-width: 100%;
  background: #e0f2fe;
}

.conteudo-duplo {
  max-width: 1100px;
  margin: auto;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 34px;
  text-align: left;
  align-items: center;
}

.conteudo-duplo h2 {
  margin-bottom: 18px;
}

.conteudo-duplo p {
  font-size: 17px;
  line-height: 1.6;
}

.lista-beneficios {
  display: grid;
  gap: 12px;
}

.lista-beneficios p,
.faixas div {
  background: white;
  border-radius: 8px;
  padding: 18px;
  box-shadow: 0 8px 22px rgba(0,0,0,0.07);
}

.faixas {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  text-align: left;
}

.faixas h3 {
  color: #166534;
  margin-bottom: 10px;
}

.planos {
  padding-top: 30px;
}

.plano span {
  display: inline-block;
  margin-bottom: 12px;
  color: #166534;
  font-weight: bold;
}

.plano.principal {
  border-top-color: #22c55e;
  transform: translateY(-8px);
}

.escura {
  background: #0f172a;
  color: white;
  max-width: 100%;
}

.escura p {
  max-width: 850px;
  margin: auto;
  font-size: 18px;
  line-height: 1.6;
}

.chamada {
  max-width: 1100px;
  margin: 40px auto 0;
  padding: 28px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  background: #166534;
  color: white;
  border-radius: 8px;
}

.chamada p {
  margin-top: 8px;
  line-height: 1.5;
}

.contato-info {
  margin: -14px 0 24px;
  font-size: 18px;
}

form {
  max-width: 520px;
  margin: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

input, textarea {
  padding: 14px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  font-size: 16px;
}

textarea {
  min-height: 120px;
}

footer {
  background: #0b1220;
  color: white;
  text-align: center;
  padding: 22px;
}

.whatsapp-fixo {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 20;
  background: #22c55e;
  color: white;
  padding: 13px 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: bold;
  box-shadow: 0 10px 28px rgba(0,0,0,0.22);
}

@media (max-width: 800px) {
  #btn-menu {
    display: block;
  }

  .menu ul {
    display: none;
    position: absolute;
    top: 68px;
    right: 18px;
    background: #0b1220;
    padding: 20px;
    border-radius: 8px;
    flex-direction: column;
  }

  .menu ul.ativo {
    display: flex;
  }

  .cards,
  .cards.tres,
  .faixas,
  .conteudo-duplo,
  .backup-planos {
    grid-template-columns: 1fr;
  }

  .hero h2 {
    font-size: 30px;
  }

  .hero p {
    font-size: 18px;
  }

  .plano.principal {
    transform: none;
  }

  .chamada {
    margin: 24px 16px 0;
    flex-direction: column;
    align-items: flex-start;
  }

  .whatsapp-fixo {
    right: 12px;
    bottom: 12px;
  }
}