body {
  background-image: radial-gradient(
    circle at center,
    rgba(217, 165, 32, 0.12) 0%,
    rgba(217, 165, 32, 0.06) 30%,
    rgba(217, 165, 32, 0.02) 70%,
    black 100%
  );
}

html,
body {
  overflow-x: hidden;
}
/* ===== Reset básico ===== */
* {
  box-sizing: border-box;
}

/* Reset essencial do form */
form {
  padding: 5%;
  font-size: 0.875rem;
  box-sizing: border-box;
}

form * {
  box-sizing: border-box;
}

/* Labels */
label {
  color: #fff;
  font-weight: 500;
}

/* Inputs, select e textarea (base) */
input,
select,
textarea {
  width: 100%;
  max-width: 600px;
  background-color: #060606;
  border: 2px solid rgba(255, 255, 255, 0.18);
  border-radius: 0.3em;
  padding: 0.6em;
  color: #fff;
  margin-top: 0.4em;
}

/* Placeholder */
input::placeholder,
textarea::placeholder {
  color: #8b8b8b;
}

/* Campo 1: nome + telefone */
#campo-1 {
  display: flex;
  gap: 1em;
}

#campo-1 div {
  flex: 1;
}

/* Campos 2 */
#campos-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5em;
  margin-top: 1.5em;
}

/* Select */
select {
  background-color: rgba(0, 0, 0, 0.75);
  cursor: pointer;
}

/* Mensagem */
#mensagem {
  min-height: 140px;
  resize: vertical;
}

/* Botão */
form button {
  width: 100%;
  background-color: #d9a520;
  color: #000;
  border: none;
  border-radius: 0.4em;
  padding: 0.9em;
  margin-top: 1.5em;
  font-weight: 600;
  cursor: pointer;
}

form button:hover {
  opacity: 0.9;
}

/* Texto de aviso */
form p {
  color: #9ca3af;
  font-size: 0.75rem;
  margin-top: 0.6em;
  text-align: center;
}

/* ========================= */
/* RESPONSIVIDADE */
/* ========================= */

/* Mobile pequeno */
@media (max-width: 480px) {
  #campo-1 {
    flex-direction: column;
  }

  form {
    padding: 6%;
  }
}

/* Tablet */
@media (min-width: 481px) and (max-width: 768px) {
  #campo-1 {
    flex-direction: column;
  }
}

/* Notebook */
@media (min-width: 769px) and (max-width: 1024px) {
  form {
    padding: 4%;
  }
}

/* Desktop grande */
@media (min-width: 1025px) {
  form {
    padding: 3%;
  }
}