:root {
  --fundo: #0b0b0b;
  --superficie: #151515;
  --superficie-2: #1d1d1d;
  --borda: #2a2a2a;
  --texto: #f2f2f2;
  --suave: #9b9b9b;
  --cliente: #f2f2f2;
  --cliente-texto: #111;
  --ia: #242424;
  --equipe: #1d3a2c;
  --tela: #0f0f0f;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--fundo);
  color: var(--texto);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.5;
}
a { color: inherit; }
img { max-width: 100%; }

.cabecalho {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px max(16px, calc((100% - 1120px) / 2));
  background: rgba(11, 11, 11, 0.85); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--borda);
}
.marca { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 600; letter-spacing: 0.3em; font-size: 14px; }
.marca img { width: 32px; height: 32px; border-radius: 6px; }
.cabecalho nav { display: flex; gap: 20px; font-size: 14px; }
.cabecalho nav a { text-decoration: none; color: var(--suave); }
.cabecalho nav a:hover { color: var(--texto); }

main > section { padding-left: max(16px, calc((100% - 1120px) / 2)); padding-right: max(16px, calc((100% - 1120px) / 2)); }

.hero { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; padding-top: 72px; padding-bottom: 72px; }
.selo-topo { display: inline-block; margin: 0 0 16px; font-size: 12px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--suave); border: 1px solid var(--borda); border-radius: 99px; padding: 4px 12px; }
.hero h1 { font-size: clamp(36px, 5.5vw, 60px); line-height: 1.05; margin: 0 0 20px; font-weight: 600; letter-spacing: -0.02em; }
.hero h1 em { font-style: normal; color: var(--suave); }
.lead { font-size: 18px; color: #cfcfcf; max-width: 520px; margin: 0 0 28px; }
.acoes { display: flex; gap: 12px; flex-wrap: wrap; }
.botao { display: inline-block; background: var(--texto); color: #111; text-decoration: none; font-weight: 600; border: 1px solid var(--texto); border-radius: 10px; padding: 12px 20px; font-size: 15px; cursor: pointer; font-family: inherit; }
.botao.fantasma { background: transparent; color: var(--texto); border-color: var(--borda); }
.botao.pequeno { padding: 8px 14px; font-size: 13px; }
.garantias { list-style: none; padding: 0; margin: 28px 0 0; display: flex; flex-wrap: wrap; gap: 8px 20px; font-size: 13px; color: var(--suave); }
.garantias li::before { content: '✓ '; color: var(--texto); }

/* Celular */
.celular { width: 100%; max-width: 360px; margin: 0 auto; background: var(--tela); border: 1px solid var(--borda); border-radius: 28px; overflow: hidden; box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6); }
.celular-topo { display: flex; align-items: center; gap: 10px; padding: 14px 16px; background: var(--superficie-2); border-bottom: 1px solid var(--borda); }
.celular-topo b { display: block; font-size: 14px; }
.celular-topo small { color: var(--suave); font-size: 12px; }
.avatar { width: 34px; height: 34px; border-radius: 50%; background: var(--texto); color: #111; display: grid; place-items: center; font-weight: 700; }
.celular-tela { height: 460px; overflow-y: auto; padding: 14px; display: flex; flex-direction: column; gap: 8px; scroll-behavior: smooth; }
.celular.mini .celular-tela { height: auto; }
.msg { max-width: 82%; padding: 7px 10px 16px; border-radius: 10px; font-size: 14px; line-height: 1.4; position: relative; animation: entrar 0.25s ease-out; }
.msg > span { position: absolute; right: 8px; bottom: 2px; font-size: 10px; opacity: 0.55; }
.msg.cliente { align-self: flex-end; background: var(--cliente); color: var(--cliente-texto); border-bottom-right-radius: 2px; }
.msg.ia { align-self: flex-start; background: var(--ia); border-bottom-left-radius: 2px; }
.msg.equipe { align-self: flex-start; background: var(--equipe); border-bottom-left-radius: 2px; }
.msg.local { border: 1px solid var(--borda); padding-bottom: 18px; }
.msg.local small { color: var(--suave); }
.autor { display: block; font-style: normal; font-size: 11px; font-weight: 600; opacity: 0.75; }
@keyframes entrar { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .msg { animation: none; } html { scroll-behavior: auto; } }

.beneficios { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; padding-bottom: 32px; }
.beneficios article { background: var(--superficie); border: 1px solid var(--borda); border-radius: 14px; padding: 20px; }
.beneficios h3 { margin: 0 0 8px; font-size: 16px; }
.beneficios p { margin: 0; color: var(--suave); font-size: 14px; }

.secao { padding-top: 72px; padding-bottom: 24px; }
.secao h2 { font-size: clamp(26px, 3.5vw, 36px); margin: 0 0 8px; letter-spacing: -0.01em; font-weight: 600; }
.sub { color: var(--suave); margin: 0 0 28px; }
.sub small { opacity: 0.7; }

/* Demonstração */
.cenarios { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.cenarios button { background: transparent; color: var(--suave); border: 1px solid var(--borda); border-radius: 99px; padding: 8px 16px; font-size: 14px; cursor: pointer; font-family: inherit; }
.cenarios button.ativo { background: var(--texto); color: #111; border-color: var(--texto); }
.demo { display: grid; grid-template-columns: 360px 1fr; gap: 40px; align-items: start; }
.bastidores { background: var(--superficie); border: 1px solid var(--borda); border-radius: 14px; padding: 20px 24px; min-height: 200px; }
.bastidores h3 { margin: 0 0 12px; font-size: 12px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--suave); }
.bastidores ol { margin: 0 0 16px; padding-left: 20px; display: flex; flex-direction: column; gap: 10px; font-size: 15px; }
.bastidores li { animation: entrar 0.25s ease-out; }

/* Painel */
.numeros { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 16px; }
.numeros div { background: var(--superficie); border: 1px solid var(--borda); border-radius: 12px; padding: 14px 16px; }
.numeros b { display: block; font-size: 26px; }
.numeros span { color: var(--suave); font-size: 13px; }
.quadro { display: grid; grid-template-columns: repeat(5, minmax(190px, 1fr)); gap: 12px; overflow-x: auto; padding-bottom: 8px; margin-bottom: 12px; }
.coluna { background: var(--superficie); border: 1px solid var(--borda); border-radius: 12px; padding: 4px 10px 10px; display: flex; flex-direction: column; gap: 8px; }
.coluna h3 { display: flex; justify-content: space-between; font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--suave); margin: 12px 4px 4px; }
.coluna .vazio { color: var(--suave); text-align: center; margin: 6px 0; }
.cartao { background: var(--fundo); border: 1px solid var(--borda); border-radius: 8px; padding: 10px; font-size: 13px; display: flex; flex-direction: column; gap: 4px; }
.cartao p { margin: 0; color: #cfcfcf; }
.cartao small { color: var(--suave); font-size: 11px; }
.tag { align-self: flex-start; font-style: normal; font-size: 10px; font-weight: 600; background: var(--equipe); border-radius: 99px; padding: 2px 8px; }
.mover { display: flex; justify-content: flex-end; gap: 4px; }
.mover button { background: var(--superficie-2); color: var(--texto); border: 1px solid var(--borda); border-radius: 6px; width: 28px; height: 24px; cursor: pointer; font-size: 15px; line-height: 1; }
.mover button:disabled { opacity: 0.25; cursor: default; }

/* Como funciona */
.passos { list-style: none; counter-reset: passo; padding: 0; margin: 24px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.passos li { counter-increment: passo; background: var(--superficie); border: 1px solid var(--borda); border-radius: 14px; padding: 20px; }
.passos li::before { content: counter(passo); display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; border: 1px solid var(--borda); margin-bottom: 12px; font-weight: 600; font-size: 14px; }
.passos p { margin: 6px 0 0; color: var(--suave); font-size: 14px; }

/* Planos */
.planos { display: grid; grid-template-columns: repeat(2, minmax(0, 360px)); gap: 16px; }
.plano { background: var(--superficie); border: 1px solid var(--borda); border-radius: 16px; padding: 24px; }
.plano.destaque { border-color: var(--suave); }
.plano h3 { margin: 0; font-size: 14px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--suave); }
.preco { font-size: 40px; font-weight: 600; margin: 8px 0 16px; }
.preco span { font-size: 15px; color: var(--suave); font-weight: 400; }
.plano ul { margin: 0; padding-left: 18px; display: flex; flex-direction: column; gap: 6px; font-size: 15px; }

/* FAQ */
.faq details { border-bottom: 1px solid var(--borda); padding: 14px 0; max-width: 760px; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq p { color: var(--suave); margin: 8px 0 0; }

.rodape { margin-top: 72px; padding: 32px 16px 48px; border-top: 1px solid var(--borda); text-align: center; }
.rodape img { width: 420px; display: block; margin: 0 auto 8px; }
.rodape small { color: var(--suave); }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding-top: 40px; gap: 32px; }
  .beneficios, .passos { grid-template-columns: repeat(2, 1fr); }
  .demo { grid-template-columns: 1fr; gap: 20px; }
  .numeros { grid-template-columns: repeat(2, 1fr); }
  .quadro { grid-template-columns: repeat(5, 72vw); }
}
@media (max-width: 600px) {
  .cabecalho nav { display: none; }
  .beneficios, .passos, .planos { grid-template-columns: 1fr; }
  .celular-tela { height: 420px; }
  .lead { font-size: 16px; }
}