/* YALEM AUTOMOTIVE SYSTEMS — design system (etapa 1, ajuste 1)
   Preto e branco dominam. O azul é a única luz e marca só o que está vivo (o campo). O logo nunca brilha. */
:root{
  color-scheme:dark;
  --bg:#000; --fg:#fff; --fg-2:#9aa3b2; --line-2:#2a2f3a;
  --blue:#3d7bff; --glow:rgba(61,123,255,.30); --glow-soft:rgba(61,123,255,.10);
  --ok:#34c77b; --err:#ff5c5c; --warn:#f2b84b;           /* só estados funcionais */
  --font:"Inter","Segoe UI",system-ui,-apple-system,sans-serif;
  --breathe:3.8s;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--bg);color:var(--fg)}
body{font-family:var(--font);-webkit-font-smoothing:antialiased;min-height:100svh;display:flex;flex-direction:column;
  padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}
a{color:inherit}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px}

.top{display:flex;justify-content:center;padding:clamp(28px,6vh,56px) 24px 0}
.mark{display:block;width:clamp(200px,24vw,250px)}
.mark img{display:block;width:100%;height:auto}

/* Conteúdo centralizado na vertical, um único eixo, ritmo de 8px */
.stage{flex:1;display:flex;flex-direction:column;justify-content:center;width:100%;max-width:760px;
  margin:0 auto;padding:40px 24px 64px;text-align:center}
h1{margin:0;font-weight:600;font-size:clamp(1.7rem,4.6vw,2.7rem);line-height:1.15;letter-spacing:-.025em}
h1 span{display:block;text-wrap:balance}
.lead{margin:24px 0 0;color:var(--fg-2);font-size:clamp(1rem,2.3vw,1.125rem);line-height:1.5}
.lead span{display:block;text-wrap:balance}

.ask{margin-top:56px;text-align:left}
.ask-label{display:block;margin:0 0 12px 4px;font-size:.78rem;font-weight:600;letter-spacing:.16em;color:var(--fg-2)}
.field{display:flex;gap:8px;padding:8px;border:1px solid var(--line-2);border-radius:16px;background:var(--bg);
  animation:breathe var(--breathe) ease-in-out infinite;transition:border-color .2s}
.field:focus-within{animation:none;border-color:var(--blue);box-shadow:0 0 0 1px var(--blue),0 0 28px var(--glow)}
.field input{flex:1;min-width:0;padding:14px 12px;border:0;outline:0;background:transparent;color:var(--fg);
  font:inherit;font-size:clamp(1.05rem,3vw,1.3rem)}
.go{flex:none;padding:0 20px;border:0;border-radius:10px;background:var(--fg);color:#000;
  font:inherit;font-size:.8rem;font-weight:700;letter-spacing:.12em;cursor:pointer;transition:box-shadow .2s}
.go:hover{box-shadow:0 0 18px var(--glow)}

.roles{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:40px}
.btn{display:inline-block;padding:14px 26px;border:1px solid var(--line-2);border-radius:10px;text-decoration:none;
  font-size:.8rem;font-weight:700;letter-spacing:.14em;transition:border-color .2s,box-shadow .2s}
.btn:hover{border-color:var(--blue);box-shadow:0 0 18px var(--glow-soft)}
.btn.solid{background:var(--fg);color:#000;border-color:var(--fg)}

/* Pulso reutilizável: aplicar .is-live apenas em estados reais (ex.: aguardando respostas) */
.is-live{animation:breathe var(--breathe) ease-in-out infinite}
@keyframes breathe{0%,100%{border-color:var(--line-2);box-shadow:0 0 0 0 transparent}
  50%{border-color:#2f4f9a;box-shadow:0 0 26px 0 var(--glow-soft)}}

@media (max-width:480px){.field{flex-direction:column}.go{padding:14px}.ask{margin-top:40px}}
@media (prefers-reduced-motion:reduce){.field,.is-live{animation:none}}