/* Tema — troque estas variáveis e o formulário inteiro muda de marca. */
:root {
  --fundo: #0a0d14;
  --fundo-2: #111725;
  --cartao: rgba(255, 255, 255, .04);
  --borda: rgba(255, 255, 255, .1);
  --borda-forte: rgba(255, 255, 255, .22);
  --texto: #eef2f8;
  --texto-fraco: #93a0b5;
  --destaque: #6d5ef6;
  /* Tom de apoio do mesmo violeta — a paleta inteira sai de uma cor só. */
  --destaque-2: #9c8cff;
  --ok: #22c55e;
  --erro: #f87171;
  --raio: 14px;
  --transicao: 260ms cubic-bezier(.22, 1, .36, 1);
  --fonte: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

[hidden] { display: none !important; }

/* Honeypot: fora da tela em vez de display:none — robô ignora campo escondido. */
.armadilha {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

html, body { height: 100%; }

body {
  font-family: var(--fonte);
  background: var(--fundo);
  color: var(--texto);
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}

.brilho {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(60vw 60vw at 15% 10%, rgba(109, 94, 246, .16), transparent 60%),
    radial-gradient(50vw 50vw at 85% 85%, rgba(109, 94, 246, .07), transparent 60%),
    linear-gradient(180deg, var(--fundo), var(--fundo-2));
  pointer-events: none;
}

/* ------------------------------------------------------------------ topo */

.topo {
  position: fixed;
  top: 0; left: 0; right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 28px;
  z-index: 5;
}

.marca { font-weight: 700; letter-spacing: -.02em; font-size: 15px; }

.progresso { display: flex; align-items: center; gap: 10px; flex: 0 1 260px; }
.progresso-barra { flex: 1; height: 4px; border-radius: 4px; background: rgba(255, 255, 255, .1); overflow: hidden; }
.progresso-barra i { display: block; height: 100%; width: 0; border-radius: 4px; background: var(--destaque); transition: width var(--transicao); }
.progresso-txt { font-size: 12px; color: var(--texto-fraco); font-variant-numeric: tabular-nums; white-space: nowrap; }

/* Navegação lateral: avançar/voltar sem tirar a mão do mouse. */
.setas {
  position: fixed;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 5;
}
.setas button {
  width: 34px; height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--borda);
  border-radius: 9px;
  background: var(--cartao);
  color: var(--texto-fraco);
  font-size: 15px;
  cursor: pointer;
  transition: color 140ms, border-color 140ms, background 140ms;
}
.setas button:hover:not(:disabled) { color: var(--texto); border-color: var(--borda-forte); background: rgba(255, 255, 255, .08); }
.setas button:disabled { opacity: .35; cursor: default; }

/* ----------------------------------------------------------------- telas */

.palco { position: relative; height: 100dvh; }

.tela {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 88px 28px 40px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px);
  transition: opacity var(--transicao), transform var(--transicao), visibility var(--transicao);
}
.tela.ativa { opacity: 1; visibility: visible; transform: none; }
.tela.saindo { transform: translateY(-14px); }

.conteudo { width: min(620px, 100%); }

.olho {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--texto-fraco);
  margin-bottom: 14px;
}

h1 { font-size: clamp(24px, 3.4vw, 34px); line-height: 1.18; letter-spacing: -.025em; font-weight: 700; text-wrap: balance; }
h2.pergunta { font-size: clamp(22px, 3.6vw, 32px); line-height: 1.2; letter-spacing: -.02em; font-weight: 650; }

.sub { margin-top: 16px; color: var(--texto-fraco); font-size: 16px; line-height: 1.6; }
.numero { font-size: 13px; color: var(--texto-fraco); font-weight: 600; margin-bottom: 10px; }
.ajuda { margin-top: 10px; color: var(--texto-fraco); font-size: 14px; }
.erro { margin-top: 12px; color: var(--erro); font-size: 14px; }
.rodape-nota { margin-top: 20px; font-size: 13px; color: var(--texto-fraco); }

/* ---------------------------------------------------------------- campos */

.campo { margin-top: 26px; }

.campo input,
.campo textarea {
  width: 100%;
  background: transparent;
  border: 0;
  border-bottom: 2px solid var(--borda-forte);
  padding: 12px 2px;
  font: inherit;
  font-size: 22px;
  color: var(--texto);
  transition: border-color var(--transicao);
}
.campo input::placeholder { color: rgba(147, 160, 181, .5); }
.campo input:focus,
.campo textarea:focus { outline: none; border-bottom-color: var(--destaque); }

.opcoes { display: grid; gap: 10px; }

.opcao {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--borda);
  border-radius: var(--raio);
  background: var(--cartao);
  cursor: pointer;
  font-size: 16px;
  text-align: left;
  color: var(--texto);
  transition: border-color 140ms, background 140ms, transform 140ms;
}
.opcao:hover { border-color: var(--borda-forte); transform: translateX(3px); }
.opcao.marcada { border-color: var(--destaque); background: rgba(109, 94, 246, .14); }

.opcao .tecla {
  display: grid;
  place-items: center;
  width: 26px; height: 26px;
  flex: 0 0 26px;
  border: 1px solid var(--borda-forte);
  border-radius: 7px;
  font-size: 12px;
  font-weight: 600;
  color: var(--texto-fraco);
}
.opcao.marcada .tecla { background: var(--destaque); border-color: var(--destaque); color: #fff; }

/* ---------------------------------------------------------------- botões */

.acoes { display: flex; align-items: center; gap: 14px; margin-top: 30px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 13px 22px;
  border: 0;
  border-radius: var(--raio);
  background: linear-gradient(135deg, var(--destaque), #8b7cff);
  color: #fff;
  font: inherit;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(109, 94, 246, .3);
  transition: transform 140ms, box-shadow 140ms, opacity 140ms;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 12px 30px rgba(109, 94, 246, .4); }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }
.btn-grande { margin-top: 30px; padding: 16px 28px; font-size: 17px; }
.btn kbd { font: inherit; font-size: 12px; opacity: .7; background: rgba(0, 0, 0, .2); padding: 2px 7px; border-radius: 6px; }

.btn-voltar, .btn-fantasma {
  background: none;
  border: 0;
  color: var(--texto-fraco);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
  padding: 8px;
}
.btn-voltar:hover, .btn-fantasma:hover { color: var(--texto); }

/* ------------------------------------------------------------------ chat */

.chat {
  width: min(620px, 100%);
  height: min(78dvh, 720px);
  display: flex;
  flex-direction: column;
  background: var(--cartao);
  border: 1px solid var(--borda);
  border-radius: 20px;
  overflow: hidden;
  backdrop-filter: blur(12px);
}

.chat-topo {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--borda);
}
.chat-topo strong { display: block; font-size: 15px; }
.chat-topo .btn-fantasma { margin-left: auto; }
.chat-status { font-size: 12px; color: var(--ok); }

.avatar {
  display: grid;
  place-items: center;
  width: 38px; height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--destaque), var(--destaque-2));
  font-weight: 700;
}

.chat-mensagens {
  flex: 1;
  overflow-y: auto;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  scroll-behavior: smooth;
}

.msg {
  max-width: 82%;
  padding: 11px 15px;
  border-radius: 16px;
  font-size: 15px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
  animation: entra 220ms cubic-bezier(.22, 1, .36, 1);
}
.msg.ia { align-self: flex-start; background: rgba(255, 255, 255, .07); border-bottom-left-radius: 5px; }
.msg.lead { align-self: flex-end; background: linear-gradient(135deg, var(--destaque), #8b7cff); border-bottom-right-radius: 5px; }

@keyframes entra { from { opacity: 0; transform: translateY(8px); } }

.digitando { display: flex; gap: 4px; align-self: flex-start; padding: 14px 16px; background: rgba(255, 255, 255, .07); border-radius: 16px; border-bottom-left-radius: 5px; }
.digitando i { width: 6px; height: 6px; border-radius: 50%; background: var(--texto-fraco); animation: pula 1.2s infinite; }
.digitando i:nth-child(2) { animation-delay: .15s; }
.digitando i:nth-child(3) { animation-delay: .3s; }
@keyframes pula { 0%, 60%, 100% { opacity: .3; transform: translateY(0); } 30% { opacity: 1; transform: translateY(-4px); } }

.chat-envio { display: flex; gap: 10px; align-items: flex-end; padding: 12px; border-top: 1px solid var(--borda); }
.chat-envio textarea {
  flex: 1;
  resize: none;
  max-height: 120px;
  background: rgba(255, 255, 255, .05);
  border: 1px solid var(--borda);
  border-radius: 12px;
  padding: 11px 14px;
  font: inherit;
  font-size: 15px;
  color: var(--texto);
}
.chat-envio textarea:focus { outline: none; border-color: var(--destaque); }

.btn-enviar {
  display: grid;
  place-items: center;
  width: 42px; height: 42px;
  flex: 0 0 42px;
  border: 0;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--destaque), #8b7cff);
  color: #fff;
  cursor: pointer;
  transition: opacity 140ms;
}
.btn-enviar:disabled { opacity: .4; cursor: not-allowed; }

/* ------------------------------------------------------------------- fim */

.selo {
  display: grid;
  place-items: center;
  width: 60px; height: 60px;
  border-radius: 50%;
  background: rgba(34, 197, 94, .16);
  color: var(--ok);
  font-size: 28px;
  margin-bottom: 22px;
}

.resumo { margin-top: 24px; display: grid; gap: 8px; }
.resumo div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 15px;
  background: var(--cartao);
  border: 1px solid var(--borda);
  border-radius: 10px;
  font-size: 14px;
}
.resumo span { color: var(--texto-fraco); }
.resumo b { font-weight: 600; text-align: right; }
#fim-cta { margin-top: 26px; }

/* -------------------------------------------------------------- mobile */

@media (max-width: 640px) {
  .topo { padding: 14px 18px; }
  .marca { font-size: 13px; white-space: nowrap; }
  .progresso { flex: 1 1 auto; }
  .tela { padding: 76px 18px 24px; align-items: flex-start; }
  .conteudo { padding-top: 8px; }
  .campo input { font-size: 18px; }
  .chat { height: calc(100dvh - 108px); border-radius: 16px; }
  .btn kbd { display: none; }
  .acoes { position: sticky; bottom: 0; }
  .setas { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, .tela { transition: none !important; animation: none !important; }
}