/* automovel.org — sistema visual "sinalização"
   Azul auto-estrada + verde itinerário. Fontes de sistema (desempenho). */
:root{
  --azul:#14477C; --azul-escuro:#0C2C4E; --azul-claro:#EAF1F8;
  --verde:#0B7A53; --papel:#F4F7FA; --branco:#FFFFFF;
  --tinta:#16212D; --cinza:#5A6876; --linha:#D7E0E9;
  --raio:14px; --max:1080px;
  --fonte:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
body{font-family:var(--fonte);color:var(--tinta);background:var(--papel);line-height:1.65;font-size:1.0625rem}
img,svg{max-width:100%;height:auto}
a{color:var(--azul);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:3px solid var(--verde);outline-offset:2px;border-radius:4px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}

/* Cabeçalho */
.topo{background:var(--azul-escuro);color:#fff;position:sticky;top:0;z-index:50;border-bottom:3px solid var(--verde)}
.topo .wrap{display:flex;align-items:center;justify-content:space-between;min-height:60px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.2rem;letter-spacing:-.02em;color:#fff}
.logo:hover{text-decoration:none}
.logo .marca{background:#fff;color:var(--azul-escuro);border-radius:6px;padding:2px 8px;font-size:.8rem;letter-spacing:.06em}
.nav{display:flex;gap:4px;flex-wrap:wrap}
.nav a{color:#fff;padding:8px 12px;border-radius:8px;font-size:.95rem;font-weight:600}
.nav a:hover,.nav a[aria-current="page"]{background:var(--azul);text-decoration:none}
.menu-btn{display:none;background:none;border:2px solid #fff;color:#fff;border-radius:8px;padding:6px 12px;font:inherit;font-weight:700;cursor:pointer}
@media (max-width:860px){
  .menu-btn{display:block}
  .nav{display:none;width:100%;flex-direction:column;padding:8px 0}
  .nav.aberto{display:flex}
  .topo .wrap{flex-wrap:wrap}
}

/* Herói */
.heroi{background:linear-gradient(160deg,var(--azul-escuro),var(--azul));color:#fff;padding:56px 0 64px}
.heroi h1{font-size:clamp(2rem,5vw,3.1rem);font-weight:800;letter-spacing:-.03em;line-height:1.12;max-width:22ch}
.heroi p{margin-top:16px;max-width:58ch;font-size:1.125rem;color:#D9E5F1}
.heroi .acoes{margin-top:28px;display:flex;gap:12px;flex-wrap:wrap}
.botao{display:inline-block;background:var(--verde);color:#fff;font-weight:700;padding:12px 22px;border-radius:10px;border:0;font:inherit;cursor:pointer}
.botao:hover{background:#095F41;text-decoration:none}
.botao.claro{background:#fff;color:var(--azul-escuro)}
.botao.claro:hover{background:var(--azul-claro)}

/* Rótulo de secção (marco quilométrico) */
.rotulo{display:flex;align-items:center;gap:10px;text-transform:uppercase;letter-spacing:.14em;font-size:.78rem;font-weight:700;color:var(--azul)}
.rotulo::before{content:"";width:26px;height:3px;background:var(--verde);border-radius:2px}

/* Painéis de sinalização (assinatura) */
.paineis{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;margin-top:24px}
.painel{position:relative;display:block;background:var(--azul);color:#fff;border-radius:var(--raio);padding:22px 20px;box-shadow:inset 0 0 0 2px rgba(255,255,255,.85),inset 0 0 0 6px var(--azul)}
.painel:hover{background:var(--azul-escuro);text-decoration:none;box-shadow:inset 0 0 0 2px #fff,inset 0 0 0 6px var(--azul-escuro)}
.painel h3{font-size:1.15rem;font-weight:800;letter-spacing:-.01em;padding-right:26px}
.painel p{margin-top:6px;font-size:.92rem;color:#CFE0F0}
.painel::after{content:"›";position:absolute;top:18px;right:18px;font-size:1.5rem;font-weight:800;color:#fff}

/* Conteúdo */
.seccao{padding:48px 0}
.seccao.alt{background:var(--branco);border-top:1px solid var(--linha);border-bottom:1px solid var(--linha)}
h2{font-size:1.6rem;font-weight:800;letter-spacing:-.02em;margin:32px 0 12px}
.rotulo+h2{margin-top:10px}
h3{font-size:1.2rem;font-weight:700;margin:24px 0 8px}
.artigo p{margin:12px 0;max-width:70ch}
.artigo ul,.artigo ol{margin:12px 0 12px 24px;max-width:68ch}
.artigo li{margin:6px 0}
.artigo table{border-collapse:collapse;width:100%;margin:16px 0;background:#fff;border-radius:10px;overflow:hidden;font-size:.98rem}
.artigo th,.artigo td{border:1px solid var(--linha);padding:10px 12px;text-align:left}
.artigo th{background:var(--azul-claro);font-weight:700}
.nota{background:var(--azul-claro);border-left:4px solid var(--azul);border-radius:0 10px 10px 0;padding:14px 16px;margin:20px 0;max-width:70ch}
.migalhas{font-size:.85rem;color:var(--cinza);padding:16px 0 0}
.migalhas a{color:var(--cinza)}
.migalhas span{color:var(--tinta);font-weight:600}

/* FAQ */
details{background:#fff;border:1px solid var(--linha);border-radius:10px;margin:10px 0;max-width:72ch}
summary{cursor:pointer;font-weight:700;padding:14px 16px;list-style:none;display:flex;justify-content:space-between;gap:12px}
summary::after{content:"+";color:var(--verde);font-weight:800}
details[open] summary::after{content:"–"}
details .resposta{padding:0 16px 14px;color:var(--tinta)}

/* Ligações relacionadas */
.relacionados{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px;margin-top:16px}
.relacionados a{background:#fff;border:1px solid var(--linha);border-radius:10px;padding:12px 14px;font-weight:600}
.relacionados a:hover{border-color:var(--azul);text-decoration:none}

/* Simulador */
.form{background:#fff;border:1px solid var(--linha);border-radius:var(--raio);padding:24px;max-width:560px;margin:20px 0}
.form label{display:block;font-weight:700;font-size:.95rem;margin:14px 0 4px}
.form input,.form select{width:100%;padding:10px 12px;border:1px solid var(--linha);border-radius:8px;font:inherit;background:var(--papel)}
.form .botao{margin-top:18px}
#resultado{margin-top:18px;font-weight:700;color:var(--azul-escuro)}
#resultado strong{color:var(--verde);font-size:1.3rem}

/* Rodapé */
.rodape{background:var(--azul-escuro);color:#C7D6E5;margin-top:56px;padding:48px 0 32px;font-size:.92rem}
.rodape h4{color:#fff;font-size:.85rem;text-transform:uppercase;letter-spacing:.1em;margin-bottom:10px}
.rodape a{color:#C7D6E5;display:block;padding:3px 0}
.rodape .grelha{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:28px}
.rodape .legal{margin-top:36px;padding-top:18px;border-top:1px solid rgba(255,255,255,.15);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}