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

body {
  font-family: Arial, sans-serif;
  background-color: #e8f5e9;
  display: flex;
  justify-content: center;
  padding: 40px 20px;
}

.container {
  background-color: #fff;
  max-width: 400px;
  width: 100%;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

h1 {
  color: #2e7d32;
  text-align: center;
  font-size: 1.6rem;
}

.subtitulo {
  text-align: center;
  color: #777;
  margin-bottom: 20px;
  font-size: 0.9rem;
}

#form-imc {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

label {
  font-size: 0.9rem;
  color: #444;
  margin-top: 8px;
}

input {
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 1rem;
}

button {
  margin-top: 20px;
  padding: 12px;
  background-color: #2e7d32;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
}

button:hover {
  background-color: #256428;
}

.resultado {
  margin-top: 25px;
  text-align: center;
  padding: 20px;
  background-color: #f1f8f2;
  border-radius: 8px;
}

.resultado.escondido {
  display: none;
}

#valor-imc {
  font-size: 2.2rem;
  font-weight: bold;
  color: #2e7d32;
  margin: 5px 0;
}

#classificacao-imc {
  color: #555;
  font-weight: bold;
}