/* ==========================================================================
   NAV — usado por home, o-que-fazemos, a-emcomjunto, blog, varejo
   ========================================================================== */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;height:88px;display:flex;align-items:center;
  transition:background .4s var(--ease),height .4s var(--ease),box-shadow .4s var(--ease),border-color .4s var(--ease);
  border-bottom:1px solid transparent}
.nav.solida{background:rgba(255,255,255,.92);backdrop-filter:blur(16px);height:72px;
  border-bottom-color:var(--n-200);box-shadow:0 1px 24px rgba(3,21,38,.05)}
.nav .shell{display:flex;align-items:center;gap:var(--esp-6);width:100%}
.logo svg{height:44px;width:auto;transition:height .4s var(--ease)}
.nav.solida .logo svg{height:38px}
.nav-links{display:flex;align-items:center;gap:var(--esp-6);margin-left:auto}
.nav-links a{position:relative;font-size:16px;color:#fff;opacity:.82;padding-block:6px;transition:opacity .25s var(--ease),color .4s var(--ease)}
.nav.solida .nav-links a{color:var(--n-900);opacity:.72}
.nav-links a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;background:var(--luminoso-500);transition:right .35s var(--ease)}
.nav-links a:hover{opacity:1}
.nav-links a:hover::after{right:0}
.nav .btn{height:44px;padding-inline:24px;font-size:14px}
.nav-btn{display:none;width:44px;height:44px;border:1px solid rgba(255,255,255,.3);border-radius:var(--r-md);
  margin-left:auto;align-items:center;justify-content:center}
.nav.solida .nav-btn{border-color:var(--n-300)}
.nav-btn i{display:block;width:16px;height:1px;background:#fff;position:relative;transition:background .2s}
.nav.solida .nav-btn i,.nav.solida .nav-btn i::before,.nav.solida .nav-btn i::after{background:var(--n-900)}
.nav-btn i::before,.nav-btn i::after{content:"";position:absolute;left:0;width:16px;height:1px;background:#fff;transition:transform .3s var(--ease)}
.nav-btn i::before{top:-5px} .nav-btn i::after{top:5px}
.nav-btn[aria-expanded="true"] i{background:transparent!important}
.nav-btn[aria-expanded="true"] i::before{transform:translateY(5px) rotate(45deg)}
.nav-btn[aria-expanded="true"] i::after{transform:translateY(-5px) rotate(-45deg)}
.progresso{position:fixed;top:0;left:0;height:2px;width:100%;z-index:110}
.progresso i{display:block;height:100%;width:0;background:var(--luminoso-500)}

/* ---------- Dropdown "Quem assessoramos" (blog, varejo) ----------
   Abre no ponteiro e no foco de teclado, sem JS: :focus-within cobre a
   navegação por Tab. No mobile vira lista recuada. Ao acrescentar mercado
   novo (Varejo, ESG), basta mais um <a> em .nav-sub. */
.nav-item{position:relative;display:flex;align-items:center;gap:7px}
.nav-item>.chev{width:10px;height:10px;flex:none;color:#fff;opacity:.7;
  transition:transform .3s var(--ease),color .4s var(--ease)}
.nav.solida .nav-item>.chev{color:var(--n-900);opacity:.6}
.nav-item:hover>.chev,.nav-item:focus-within>.chev{transform:rotate(180deg);opacity:1}
.nav-sub{position:absolute;top:calc(100% + 14px);left:-16px;min-width:250px;padding:8px;
  background:rgba(3,21,38,.97);backdrop-filter:blur(16px);
  border:1px solid rgba(255,255,255,.14);border-radius:var(--r-md);
  box-shadow:0 20px 44px rgba(3,21,38,.44);
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s}
.nav-item:hover>.nav-sub,.nav-item:focus-within>.nav-sub{opacity:1;visibility:visible;transform:none}
.nav-sub a,.nav.solida .nav-sub a{display:block;padding:11px 14px;border-radius:8px;
  font-size:15px;color:rgba(255,255,255,.86);opacity:1}
.nav-sub a::after{display:none}
.nav-sub a:hover,.nav.solida .nav-sub a:hover{background:rgba(255,255,255,.09);color:#fff}
.nav-sub small{display:block;margin-top:3px;font-size:12px;line-height:1.4;color:var(--n-400)}

@media (max-width:900px){
  .nav{height:72px}
  .nav-links{position:fixed;inset:0;flex-direction:column;align-items:flex-start;justify-content:center;gap:var(--esp-5);
    padding:110px var(--gutter) 48px;height:100dvh;background:rgba(3,21,38,.97);backdrop-filter:blur(20px);
    transform:translateY(-100%);transition:transform .5s var(--suave);margin:0}
  .nav-links.aberto{transform:translateY(0)}
  .nav-links a,.nav.solida .nav-links a{color:#fff;font-size:24px;font-weight:300;opacity:.9}
  .nav-btn{display:flex} .nav .btn{display:none}
  .nav-item{flex-direction:column;align-items:flex-start;gap:0;width:100%}
  .nav-item>.chev{display:none}
  .nav-sub{position:static;min-width:0;opacity:1;visibility:visible;transform:none;
    padding:0 0 0 20px;background:none;border:0;box-shadow:none;backdrop-filter:none}
  .nav-sub a,.nav.solida .nav-sub a{font-size:18px;opacity:.72;padding:10px 0}
  .nav-sub small{display:none}
}