#calculadora-cliques {
  font-family: Roboto, Arial, sans-serif;
  max-width: 760px;
  margin: 20px auto;
  padding: 20px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 6px 18px rgba(0,0,0,0.06);
  border: 1px solid rgba(0,0,0,0.08);
}
#calculadora-cliques h2 {
  font-family: Roboto, Arial, sans-serif;
  font-weight: 700;
  text-align: center;
  margin: 8px 0 14px;
}
.modo-btns {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 14px;
}
.modo-btns button {
  padding: 10px 18px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  font-weight: 700;
}
#btn-mg.ativo, #btn-cliques.ativo { background: #008f7a; color: #fff; }
#btn-mg.inativo, #btn-cliques.inativo { background: #666; color: #fff; }
label { font-weight: 600; display: block; margin-top: 10px; }
input, select {
  width: 100%; padding: 10px; margin-top: 6px;
  border: 1px solid #cfd3d7; border-radius: 8px; background: #f8fafb;
}
.calc-btn {
  width: 100%; margin-top: 16px; background: #008f7a; color: #fff;
  border: none; padding: 12px; border-radius: 10px; font-weight: 700; cursor: pointer;
}
.calc-btn:hover { filter: brightness(0.95); }
.resultado {
  margin-top: 18px; padding: 14px; background: #f4f7f6; border-radius: 10px; font-size: 15px;
}
.whatsapp-btn {
  display: block; margin: 26px auto 0; background: #25D366; color: #fff !important;
  padding: 12px 22px; border-radius: 999px; font-weight: 800; text-align: center; text-decoration: none; max-width: 260px;
}
.whatsapp-btn:hover { filter: brightness(1.05); }
@media (max-width: 520px){ #calculadora-cliques { padding: 16px; } }