/* Cabeçalho fixo, rodapé e botão flutuante do WhatsApp. */

.cabecalho{
  position:fixed;
  left:0; right:0; top:0;
  z-index:40;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:max(14px, calc(env(safe-area-inset-top, 0px) + 12px)) max(var(--margem), env(safe-area-inset-right, 0px)) 14px max(var(--margem), env(safe-area-inset-left, 0px));
  background:linear-gradient(to bottom, rgba(10,10,10,.94) 0%, rgba(10,10,10,.78) 72%, rgba(10,10,10,0) 100%);
}

.marca{
  display:flex;
  align-items:center;
  gap:10px;
  min-width:0;
  min-height:40px;
  text-decoration:none;
  font-family:var(--fonte-titulo);
  font-weight:800;
  font-size:20px;
  letter-spacing:.04em;
}
.marca img{ width:30px; height:30px; flex-shrink:0; }

.nav{
  display:flex;
  align-items:center;
  gap:clamp(14px, 2.4vw, 32px);
  flex-shrink:0;
}
.nav a:not(.pilula){
  font-family:var(--fonte-mono);
  font-size:12.5px;
  letter-spacing:.1em;
  text-transform:uppercase;
  text-decoration:none;
  opacity:.82;
  padding:10px 0;
  transition:opacity .3s var(--ease);
}
.nav a:not(.pilula):hover{ opacity:1; }
.nav .pilula{ color:#0a0a0a; -webkit-text-fill-color:#0a0a0a; }

/* Rodapé */
.rodape{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:14px;
  padding:72px var(--margem) max(96px, calc(env(safe-area-inset-bottom, 0px) + 88px));
  border-top:1px solid var(--rule);
  text-align:center;
}
.rodape img{ width:44px; height:44px; opacity:.9; }
.rodape-nome{
  font-family:var(--fonte-titulo);
  font-weight:800;
  font-size:22px;
  letter-spacing:.04em;
  text-transform:uppercase;
}
.rodape-links{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:8px 28px;
}
.rodape-links a{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  font-family:var(--fonte-mono);
  font-size:13px;
  letter-spacing:.08em;
  text-transform:uppercase;
  text-decoration:none;
  color:var(--fg-soft);
  transition:color .3s var(--ease);
}
.rodape-links a:hover{ color:var(--fg); }
.rodape-direitos{
  font-family:var(--fonte-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--fg-faint);
}

/* Botão flutuante do WhatsApp */
.whats-flutuante{
  position:fixed;
  right:max(16px, calc(env(safe-area-inset-right, 0px) + 12px));
  bottom:max(16px, calc(env(safe-area-inset-bottom, 0px) + 12px));
  z-index:45;
  display:grid;
  place-items:center;
  width:56px;
  height:56px;
  border-radius:50%;
  background:var(--accent);
  color:#0a0a0a;
  box-shadow:0 6px 24px rgba(0,0,0,.45);
  transition:transform .4s var(--ease);
}
.whats-flutuante:hover,.whats-flutuante:focus-visible{ transform:translateY(-3px); }

@media (max-width:720px){
  .nav a:not(.pilula){ display:none; }
  .marca{ font-size:18px; }
  .nav .pilula{ min-height:38px; padding:0 16px; font-size:12px; }
}

@media (max-width:420px){
  .marca span{ font-size:16px; }
  .nav .pilula{ min-height:36px; padding:0 14px; }
  .whats-flutuante{ width:52px; height:52px; }
}