:root {
  --fundo: #f7f5f2;
  --cartao: #ffffff;
  --texto: #1f1d1a;
  --suave: #6b665f;
  --borda: #e3ded6;
  --marca: #5b3fd6;
  --marca-escura: #4630a8;
  --erro: #b42318;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--fundo);
  color: var(--texto);
  font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
main { max-width: 680px; margin: 0 auto; padding: 32px 16px 64px; }
.marca { font-weight: 700; letter-spacing: .02em; color: var(--marca); font-size: 14px; text-transform: uppercase; }
h1 { font-size: 28px; line-height: 1.2; margin: 8px 0 12px; }
.intro { color: var(--suave); margin: 0 0 24px; }
.tempo { display: inline-block; background: #ece8ff; color: var(--marca-escura); border-radius: 999px; padding: 2px 10px; font-size: 13px; font-weight: 600; }
form { display: grid; gap: 16px; }
fieldset {
  border: 1px solid var(--borda); border-radius: 12px; background: var(--cartao);
  padding: 18px 18px 16px; margin: 0;
}
legend, .rotulo { font-weight: 600; padding: 0; margin-bottom: 10px; display: block; float: left; width: 100%; }
legend + * { clear: both; }
.obrig { color: var(--marca); }
.ajuda { color: var(--suave); font-size: 14px; margin: -6px 0 10px; }
input[type=text], input[type=email], textarea {
  width: 100%; border: 1px solid var(--borda); border-radius: 8px; padding: 10px 12px;
  font: inherit; background: #fff; color: inherit;
}
textarea { min-height: 96px; resize: vertical; }
input:focus, textarea:focus { outline: 2px solid var(--marca); outline-offset: 1px; border-color: var(--marca); }
.opcoes { display: grid; gap: 8px; }
.opcoes label { display: flex; gap: 10px; align-items: flex-start; cursor: pointer; }
.opcoes input { margin-top: 4px; accent-color: var(--marca); }
.escala { display: flex; gap: 6px; flex-wrap: wrap; }
.escala label { flex: 1 0 40px; text-align: center; border: 1px solid var(--borda); border-radius: 8px; padding: 8px 0; cursor: pointer; }
.escala input { position: absolute; opacity: 0; pointer-events: none; }
.escala input:checked + span { color: #fff; }
.escala label:has(input:checked) { background: var(--marca); border-color: var(--marca); color: #fff; }
.escala-legenda { display: flex; justify-content: space-between; color: var(--suave); font-size: 13px; margin-top: 6px; }
button {
  background: var(--marca); color: #fff; border: 0; border-radius: 10px; padding: 14px 20px;
  font: inherit; font-weight: 700; cursor: pointer;
}
button:hover { background: var(--marca-escura); }
button[disabled] { opacity: .6; cursor: wait; }
.erro { color: var(--erro); font-size: 14px; }
.campo-erro { border-color: var(--erro) !important; }
.rodape { color: var(--suave); font-size: 13px; text-align: center; margin-top: 8px; }
.oculto { position: absolute; left: -9999px; }