body {
  background: radial-gradient(circle at top, #001a1f, #000);
  color: #fff;
  font-family: 'Inter', sans-serif;
  text-align: center;
  margin: 0;
  padding: 0;
}

header {
  padding: 20px;
}

.logo {
  color: #8a2be2;
  font-weight: 700;
  font-size: 32px;
}

.highlight {
  color: #00ffcc;
  font-weight: 700;
  font-size: 32px;
}

.sub {
  color: #aaa;
  margin-bottom: 10px;
}

button {
  background: linear-gradient(90deg, #8a2be2, #00ffcc);
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 12px;
  font-size: 15px;
  cursor: pointer;
  transition: 0.2s;
}

button:hover {
  opacity: 0.9;
}

.planos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 25px;
  padding: 30px;
}

.plano {
  border: 1px solid rgba(0,255,255,0.2);
  border-radius: 20px;
  background: rgba(0, 0, 0, 0.4);
  width: 230px;
  padding: 20px;
  box-shadow: 0 0 10px #00ffcc55;
}

.plano h3 {
  color: #00ffcc;
}

.valor {
  font-size: 26px;
  margin: 10px 0;
}

footer {
  font-size: 14px;
  color: #aaa;
  padding: 20px;
}