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

body {
  background-color: #030712;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: system-ui, sans-serif;
}

main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.conteudo {
  width: 100%;
  max-width: 32rem;
}

.voltar {
  display: block;
  margin-bottom: 2rem;
  color: #d1d5db;
  font-size: 0.75rem;
  text-decoration: none;
  transition: color 0.2s;
}

.voltar:hover {
  color: #facc15;
}

h1 {
  display: flex;
  flex-direction: column;
  font-size: 2.25rem;
  font-weight: 900;
  color: #fff;
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

h1 span {
  color: #facc15;
}

.descricao {
  color: #d1d5db;
  font-size: 0.75rem;
  margin-bottom: 2.5rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  color: #d1d5db;
  font-size: 0.75rem;
  text-transform: uppercase;
}

input {
  width: 100%;
  padding: 0.75rem 1rem;
  margin-bottom: 1.5rem;
  color: #fff;
  font-size: 1.125rem;
  background: transparent;
  border: 1px solid #374151;
  outline: none;
  transition: border-color 0.2s;
}

input:focus {
  border-color: #facc15;
}

button {
  width: 100%;
  padding: 1rem;
  margin-bottom: 2rem;
  color: #000;
  font-weight: 900;
  font-size: 1rem;
  background-color: #facc15;
  border: none;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color 0.2s;
}

button:hover {
  background-color: #fde047;
}

.resultado {
  display: flex;
  min-height: 6rem;
  padding: 1.5rem;
  text-align: center;
  color: #d1d5db;
  border: 1px solid #374151;
  align-items: center;
  justify-content: center;
}

.resultado.abaixo{
  border: solid #1e3a5f;
}

.resultado.normal{
  border: solid #14532d;
}

.resultado.acima{
  border: solid #713f12;
}

.resultado.obesidade1{
  border: solid #7f1d1d;
}

.resultado.obeidade2{
  border: solid #6b0f0f;
}

.resultado.obesidade3{
  border: solid #450a0a;
}

footer {
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

footer p {
  color: #d1d5db;
  font-size: 0.75rem;
  text-align: center;
  padding: 1rem;
}