.nav { position: absolute; inset: 0 0 auto; z-index: 50; height: var(--nav-h); border-bottom: 1px solid var(--line); }
.nav__inner { display: flex; align-items: center; justify-content: center; height: 100%; padding: 0 var(--frame); }
.nav__logo { width: 92px; height: 38px; display: flex; align-items: center; flex: none; }
.nav__logo img { width: 100%; height: 100%; object-fit: contain; } /* PNG com fundo transparente: a logo centralizada fica sobre a fita índigo */

.nav__links { display: flex; align-items: center; gap: 6px; }
.nav__link {
  display: inline-flex; align-items: center; gap: 7px; padding: 8px 12px;
  background: none; border: 0; cursor: pointer;
  font-size: 15px; font-weight: 500; color: var(--ink); transition: opacity .15s;
}
.nav__link:hover { opacity: .6; }
.nav__chev { width: 9px; height: 9px; transition: transform .2s; }
.nav__link.is-open .nav__chev { transform: rotate(180deg); }

.nav__cta { display: flex; gap: 8px; margin-left: auto; }
.nav__cta { align-items: center; }
.nav__cta .btn { height: 38px; padding: 0 18px; font-size: 14.5px; font-weight: 600; }
/* fica sobre a fita índigo: branco com texto da marca para não sumir */
.nav__cta .btn--primary { background: #fff; color: var(--brand-500); }
.nav__cta .btn--primary:hover { background: var(--brand-50); }

/* ===== Dropdown que muda de forma ===== */
.dd { position: absolute; top: calc(var(--nav-h) - 6px); left: 0; pointer-events: none; perspective: 2000px; }
.dd--morph { transition: transform .3s cubic-bezier(.4, 0, .2, 1); }
.dd__bg {
  position: relative; overflow: hidden; background: #fff; border-radius: 8px; box-shadow: var(--shadow);
  opacity: 0; transform: rotateX(-15deg); transform-origin: 50% -50px; transition: opacity .25s, transform .25s;
}
.dd--morph .dd__bg { transition: opacity .25s, transform .25s, width .3s cubic-bezier(.4, 0, .2, 1), height .3s cubic-bezier(.4, 0, .2, 1); }
.dd__arrow { position: absolute; top: -6px; left: 0; z-index: 1; width: 12px; height: 12px; background: #fff; border-radius: 3px 0 0 0; opacity: 0; transition: opacity .25s; }
.dd--morph .dd__arrow { transition: opacity .25s, transform .3s cubic-bezier(.4, 0, .2, 1); }
.dd.open { pointer-events: auto; }
.dd.open .dd__bg { opacity: 1; transform: none; }
.dd.open .dd__arrow { opacity: 1; }
.dd__panel { position: absolute; top: 0; left: 0; display: grid; gap: 20px; padding: 26px; opacity: 0; pointer-events: none; transition: opacity .25s, transform .3s cubic-bezier(.4, 0, .2, 1); }
.dd__panel.from-left { transform: translateX(-80px); }
.dd__panel.from-right { transform: translateX(80px); }
.dd__panel.active { opacity: 1; pointer-events: auto; transform: none; }
.dd__title { display: block; margin-bottom: 10px; font-size: 12px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.dd__entry { display: flex; gap: 12px; padding: 9px 10px; margin: 0 -10px; border-radius: 8px; transition: background .15s; }
.dd__entry:hover { background: var(--tint); }
.dd__entry b { display: block; font-size: 15px; font-weight: 500; color: var(--ink); }
.dd__entry small { font-size: 13px; color: var(--ink-2); }
.dd__dot { width: 10px; height: 10px; margin-top: 5px; flex: none; border-radius: 3px; }

/* ===== Mobile ===== */
.nav__burger { display: none; position: relative; width: 40px; height: 40px; border: 0; background: none; cursor: pointer; }
.nav__burger span { position: absolute; left: 11px; width: 18px; height: 2px; border-radius: 2px; background: #fff; transition: transform .25s, top .25s, background .2s; }
.nav__burger span:first-child { top: 15px; }
.nav__burger span:last-child { top: 23px; }
.nav--open .nav__burger span:first-child { top: 19px; transform: rotate(45deg); }
.nav--open .nav__burger span:last-child { top: 19px; transform: rotate(-45deg); }
.nav--open .nav__burger span { background: var(--ink); } /* com o painel branco aberto, o X fica escuro */

.msheet { display: none; }

/* Tablet e celular: links e CTA somem, entra o hambúrguer */
@media (max-width: 960px) {
  .nav__links, .dd { display: none; }
  .nav--open { background: #fff; }

  .msheet {
    display: block; position: fixed; top: var(--nav-h); left: 0; right: 0; bottom: 0;
    padding: 8px 16px 32px; overflow-y: auto; background: #fff;
    opacity: 0; visibility: hidden; transform: translateY(-8px); transition: opacity .2s, transform .2s, visibility .2s;
  }
  .nav--open .msheet { opacity: 1; visibility: visible; transform: none; }
  .msheet__group { border-bottom: 1px solid var(--line); }
  .msheet__group summary, .msheet__link {
    display: flex; justify-content: space-between; align-items: center; padding: 16px 0;
    font-size: 17px; font-weight: 500; color: var(--ink); cursor: pointer; list-style: none;
  }
  .msheet__group summary::-webkit-details-marker { display: none; }
  .msheet__group summary::after { content: ""; width: 7px; height: 7px; margin-right: 4px; border: solid var(--ink-2); border-width: 0 1.6px 1.6px 0; transform: rotate(45deg); transition: transform .2s; }
  .msheet__group[open] summary::after { transform: rotate(-135deg); }
  .msheet__group .dd__entry { margin: 0 0 4px; }
  .msheet__group[open] { padding-bottom: 10px; }
  .msheet__link { border-bottom: 1px solid var(--line); }
  .msheet__cta { display: grid; gap: 10px; margin-top: 24px; }
}
@media (min-width: 761px) and (max-width: 960px) {
  .msheet { padding-left: calc(var(--frame) + 13px); padding-right: calc(var(--frame) + 13px); }
}
/* Celular: header mais baixo e logo menor */
@media (max-width: 760px) {
  :root { --nav-h: 60px; }
  .nav__inner { padding: 0 16px; }
  .nav__logo { width: 80px; height: 32px; }
}