:root {
  --azul-escuro: #020617;
  --azul-principal: #1e40af;
  --azul-secundario: #1d4ed8;
  --cinza-texto: #374151;
  --cinza-claro: #e5e7eb;
}

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: #f9fafb;
  color: #1f2937;
}

section {
  max-width: 1200px;
  margin: auto;
  padding: 50px 20px;
}

section h2 {
  font-size: 1.9rem;
  margin-bottom: 40px;
  color: #0f172a;
}

footer {
  background: #020617;
  color: #9ca3af;
  text-align: center;
  padding: 40px 20px;
  font-size: 0.85rem;
}
 /* ===== WHATSAPP FLUTUANTE ===== */
.whatsapp-float {
  position: fixed;
  bottom: 22px;
  right: 22px;
  width: 60px;
  height: 60px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 25px rgba(0,0,0,0.25);
  z-index: 1000;
  animation: pulse 2.5s infinite;
}

.whatsapp-float img {
  width: 32px;
  height: 32px;
}