/* Reset básico */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, Helvetica, sans-serif;
}

/* Corpo da página */
body {
  min-height: 100vh;
  background: linear-gradient(135deg, #530566, #8809a1);

  display: flex;
  flex-direction: column;
}

/* Cabeçalho */
header {
  padding: 20px;
  text-align: center;
  color: white;
}

/* Conteúdo principal */
main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Container */
.container {
  background: white;
  padding: 30px;
  width: 100%;
  max-width: 400px;

  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

/* Formulário */
form {
  display: flex;
  flex-direction: column;
}

label {
  margin-top: 15px;
  margin-bottom: 5px;
}

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

button {
  margin-top: 20px;
  padding: 12px;

  border: none;
  border-radius: 8px;
  background: #4facfe;
  color: white;
  font-size: 16px;

  cursor: pointer;
}

button:hover {
  background: #00c6ff;
}

/* Mensagem */
#mensagem {
  margin-top: 15px;
  margin-bottom: 20px;
  padding: 8px;
  border-radius: 6px;
  text-align: center;
  font-weight: bold;

  display: none; /* escondido por padrão */
}



/* Rodapé */
footer {
  text-align: center;
  padding: 10px;
  color: white;
}
.erro {
  color: red;
  font-size: 14px;
  height: 16px;
}

input.invalido {
  border: 2px solid red;
}

button:disabled {
  background: #ccc;
  cursor: not-allowed;
}

.item-contato {
  display: flex;
  justify-content: space-between;
  align-items: center;

  margin-top: 10px;
  padding: 10px;

  background: #f5f5f5;
  border-radius: 6px;
}

.item-contato button {
  margin: 0;
  padding: 6px 10px;
  font-size: 14px;
  background: #ff4d4d;
}

.item-contato button:hover {
  background: #e60000;
}

h3 {
  margin-top: 25px;
  margin-bottom: 10px;
  text-align: center;
  color: #333;
}