:root {
  --bg: #f6f7f4; --card: #ffffff; --texto: #1d2420; --suave: #5b665f;
  --verde: #1f6b3a; --verde-claro: #e3f1e7; --borda: #d5dbd6;
  --erro: #b3261e; --erro-bg: #fdecea; --aviso-bg: #fff6df; --aviso-borda: #e5c669;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #131815; --card: #1c231f; --texto: #e8ece9; --suave: #9fada4;
    --verde: #5fc283; --verde-claro: #213a2a; --borda: #34403a;
    --erro: #ff8a80; --erro-bg: #3a1f1d; --aviso-bg: #3a331c; --aviso-borda: #8a7432;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #131815; --card: #1c231f; --texto: #e8ece9; --suave: #9fada4;
  --verde: #5fc283; --verde-claro: #213a2a; --borda: #34403a;
  --erro: #ff8a80; --erro-bg: #3a1f1d; --aviso-bg: #3a331c; --aviso-borda: #8a7432;
  color-scheme: dark;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--texto);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
.topo { position: sticky; top: 0; background: var(--card); border-bottom: 1px solid var(--borda); z-index: 5; }
.topo-in { max-width: 760px; margin: 0 auto; padding: 12px 16px; display: flex; justify-content: space-between; gap: 12px; align-items: center; }
.topo-dir { display: flex; align-items: center; gap: 10px; }
.tema { padding: 4px 12px; font-size: 13px; background: transparent; color: var(--verde); border: 1px solid var(--borda); border-radius: 999px; }
.anonimo { background: var(--verde-claro); color: var(--verde); font-size: 13px; font-weight: 600; padding: 2px 10px; border-radius: 999px; }
.barra { height: 4px; background: var(--borda); }
.barra-in { height: 100%; background: var(--verde); width: 0; transition: width .25s; }
.miolo { max-width: 760px; margin: 0 auto; padding: 20px 16px 40px; }
.rodape { max-width: 760px; margin: 0 auto; padding: 0 16px 32px; color: var(--suave); font-size: 13px; text-align: center; }
h1 { font-size: 22px; margin: 0 0 8px; }
h2 { font-size: 19px; margin: 0 0 4px; }
h2.sub { font-size: 16px; margin: 16px 0 6px; }
.como { margin: 0 0 8px; padding-left: 20px; }
.como ul { margin: 4px 0 0; padding-left: 20px; }
.como li { margin-bottom: 6px; }
.passo { color: var(--suave); font-size: 14px; margin: 0 0 16px; }
.card { background: var(--card); border: 1px solid var(--borda); border-radius: 12px; padding: 16px; margin: 0 0 14px; }
.card.erro { border-color: var(--erro); background: var(--erro-bg); }
.aviso { background: var(--aviso-bg); border: 1px solid var(--aviso-borda); border-radius: 12px; padding: 12px 16px; margin: 0 0 14px; }
.msg-erro { background: var(--erro-bg); color: var(--erro); border-radius: 8px; padding: 10px 14px; margin: 0 0 14px; font-weight: 600; }
fieldset { border: 0; margin: 0; padding: 0; min-width: 0; }
legend { padding: 0; font-weight: 600; margin-bottom: 10px; }
.num { color: var(--suave); font-weight: 400; margin-right: 4px; }
.legenda { color: var(--suave); font-size: 13px; margin: 0 0 14px; }
.escala { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; }
.enps { display: grid; grid-template-columns: repeat(11, 1fr); gap: 4px; }
.opc { position: relative; }
.opc input { position: absolute; opacity: 0; inset: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.opc span { display: block; text-align: center; padding: 10px 0; border: 1px solid var(--borda); border-radius: 8px; font-weight: 600; background: var(--bg); }
.opc input:checked + span { background: var(--verde); color: #fff; border-color: var(--verde); }
.opc input:focus-visible + span { outline: 3px solid var(--verde); outline-offset: 2px; }
.extremos { display: flex; justify-content: space-between; color: var(--suave); font-size: 12px; margin-top: 4px; }
.na { margin-top: 8px; font-size: 14px; color: var(--suave); }
.na label { display: inline-flex; gap: 8px; align-items: center; cursor: pointer; }
.lista label { display: flex; gap: 10px; align-items: flex-start; padding: 8px 0; cursor: pointer; }
.lista input { margin-top: 4px; width: 18px; height: 18px; flex: none; }
.lista input:disabled + span { color: var(--suave); }
textarea, input[type="text"] { width: 100%; font: inherit; color: inherit; background: var(--bg); border: 1px solid var(--borda); border-radius: 8px; padding: 10px; }
textarea { min-height: 96px; resize: vertical; }
.contador { color: var(--suave); font-size: 13px; margin-top: 6px; }
.acoes { display: flex; justify-content: space-between; gap: 12px; margin-top: 20px; }
button { font: inherit; font-weight: 600; padding: 12px 22px; border-radius: 10px; border: 1px solid var(--verde); cursor: pointer; }
button.prim { background: var(--verde); color: #fff; }
button.sec { background: transparent; color: var(--verde); }
button:disabled { opacity: .55; cursor: default; }
button:focus-visible, a:focus-visible { outline: 3px solid var(--verde); outline-offset: 2px; }
a { color: var(--verde); }
@media (max-width: 520px) {
  .enps { grid-template-columns: repeat(6, 1fr); }
  .opc span { padding: 12px 0; }
}

:root[data-theme="dark"] button.prim { color: #0e1a12; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) button.prim { color: #0e1a12; } }
:root[data-theme="dark"] .opc input:checked + span { color: #0e1a12; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .opc input:checked + span { color: #0e1a12; } }