* {
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
  margin: 0;
  padding: 0;
}

body {
  background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
  color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 10px;
}

.container {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  padding: 25px;
  width: 100%;
  max-width: 500px;
  text-align: center;
  box-shadow: 0 0 25px rgba(0,0,0,0.4);
  backdrop-filter: blur(10px);
}

h1 {
  font-size: 2rem;
  margin-bottom: 8px;
  color: #00ffb3;
}

.subtitle {
  font-size: 1rem;
  color: #bfeee1;
  margin-bottom: 20px;
}

label {
  display: block;
  text-align: left;
  margin-top: 15px;
  font-weight: 500;
  font-size: 1rem;
}

input, select {
  width: 100%;
  padding: 14px 12px;
  margin-top: 8px;
  border-radius: 12px;
  border: none;
  outline: none;
  background-color: rgba(34,45,38,0.9);
  color: #fff;
  font-size: 1rem;
}

select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23ffffff' viewBox='0 0 24 24'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  cursor: pointer;
}

input:hover, select:hover {
  background-color: rgba(34,45,38,1);
}

button {
  width: 100%;
  margin-top: 20px;
  padding: 16px;
  border: none;
  border-radius: 14px;
  background: #00ffb3;
  color: #0f2027;
  font-weight: bold;
  font-size: 1.2rem;
  cursor: pointer;
  transition: 0.3s;
}

button:hover {
  background: #00d48b;
}

.resultado {
  margin-top: 25px;
  font-size: 1.15rem;
  line-height: 1.6;
  background: rgba(255,255,255,0.1);
  border-radius: 14px;
  padding: 18px;
}

.highlight {
  color: #00ffb3;
  font-weight: bold;
}

.footer {
  margin-top: 20px;
  font-size: 0.85rem;
  color: #bfeee1;
}

/* Link do arco recomendado */
.btn-link {
  display: inline-block;
  margin-top: 15px;
  padding: 10px 18px;
  background-color: transparent;
  color: #00ffb3; /* mesma cor do h1 */
  border: 2px solid #00ffb3;
  border-radius: 10px;
  font-weight: bold;
  text-decoration: none;
  transition: 0.3s;
}

.btn-link:hover {
  background-color: #00ffb3;
  color: #0f2027;
}

/* Responsividade */
@media (max-width: 600px) {
  h1 {
    font-size: 1.6rem;
  }

  .subtitle {
    font-size: 0.9rem;
  }

  input, select {
    padding: 16px 12px;
    font-size: 1.1rem;
  }

  button {
    padding: 18px;
    font-size: 1.15rem;
  }

  .resultado {
    font-size: 1.05rem;
    padding: 15px;
  }

  .container {
    padding: 20px;
  }
}