/* ==========================================================
   PORTÃO DO DRAGÃO — navbar (global, fixa no topo)
   links, botão "Agendar sessão", burger + drawer
   ========================================================== */

.nav {
  position: fixed; inset: 0 0 auto; z-index: 20;
  display: flex; align-items: center; gap: clamp(20px, 3vw, 48px);
  padding: calc(14px + env(safe-area-inset-top, 0px)) clamp(16px, 4vw, 56px) 14px;
  background: linear-gradient(to bottom, rgba(5, 3, 4, .78), rgba(5, 3, 4, .35) 60%, transparent);
}
.nav__brand img { height: 62px; width: auto; filter: drop-shadow(0 0 2px rgba(0, 0, 0, .9)) drop-shadow(0 0 10px rgba(224, 38, 43, .45)); transition: filter .4s, transform .4s; }
.nav__brand:hover img { transform: rotate(-3deg) scale(1.05); filter: drop-shadow(0 0 16px rgba(224, 38, 43, .8)); }

.nav__links { display: flex; gap: clamp(18px, 2.6vw, 40px); margin-left: auto; }
.nav__links a {
  position: relative;
  display: grid; justify-items: center;
  padding: 8px 2px 12px;
}
/* ---------- links: sutil ----------
   Hover: o texto clareia e um losango carmesim mínimo surge abaixo.
   A seção atual (scroll-spy, js/nav.js) mantém o losango. */
.nav__links a { color: var(--bone-dim); transition: color .4s ease; }
.nav .t {
  font-size: 12.5px; font-weight: 600; letter-spacing: .22em; text-transform: uppercase;
}
.nav__links a::after {
  content: ""; position: absolute; left: 50%; bottom: 0;
  width: 4px; height: 4px;
  background: var(--crimson);
  box-shadow: 0 0 6px rgba(224, 38, 43, .8);
  opacity: 0;
  transform: translate(-50%, 4px) rotate(45deg);
  transition: opacity .4s ease, transform .4s ease;
}
.nav__links a:hover, .nav__links a:focus-visible, .nav__links a[aria-current="true"] { color: var(--bone); }
.nav__links a:hover::after, .nav__links a:focus-visible::after, .nav__links a[aria-current="true"]::after {
  opacity: 1;
  transform: translate(-50%, 0) rotate(45deg);
}

/* ---------- vaga do botão "Agendar sessão" ----------
   O botão vive no hero (css/hero.css) e rola com ele: não acompanha o visitante.
   No topo da página ele fica no canto da navbar, então a navbar reserva a vaga dele
   (mesmo tamanho que o botão ocupava aqui) para os links não pularem para a direita. */
.nav__vaga { flex: none; width: calc(var(--cta-alt) * 1100 / 395); height: calc(var(--cta-alt) - 36px); }

.nav__burger { display: none; }

/* entrada da navbar (o botão do hero entra junto: ver .nav-in .cta no hero.css) */
.js-intro .nav .nav__brand,
.js-intro .nav .nav__links a,
.js-intro .nav__burger { opacity: 0; }
.nav-in .nav__brand { animation: brand-stamp .9s cubic-bezier(.3, 1.5, .5, 1) both; }
.nav-in .nav__links a,
.nav-in .nav__burger { animation: nav-item .8s cubic-bezier(.2, .7, .2, 1) calc(.25s + var(--i, 0) * .08s) both; }
@keyframes brand-stamp { from { opacity: 0; transform: scale(1.6) rotate(-8deg); filter: blur(4px) } to { opacity: 1 } }
@keyframes nav-item { from { opacity: 0; transform: translateY(-14px) } to { opacity: 1; transform: none } }

/* ---------- drawer mobile ---------- */
.drawer {
  position: fixed; inset: 0; z-index: 15;
  display: grid; align-content: center; justify-items: start; gap: 40px;
  padding: 100px clamp(24px, 8vw, 60px) calc(40px + env(safe-area-inset-bottom, 0px));
  background:
    radial-gradient(ellipse 80% 60% at 100% 0%, rgba(139, 10, 10, .45), transparent 70%),
    rgba(5, 3, 4, .96);
  backdrop-filter: blur(8px);
  animation: drawer-in .45s ease both;
}
.drawer nav { display: grid; gap: 22px; }
.drawer nav a {
  display: flex; align-items: baseline; gap: 16px;
  font-size: clamp(26px, 8vw, 38px); font-weight: 600; letter-spacing: .06em;
  opacity: 0; animation: nav-item .6s ease both;
}
.drawer nav a:nth-child(1) { animation-delay: .08s } .drawer nav a:nth-child(2) { animation-delay: .14s }
.drawer nav a:nth-child(3) { animation-delay: .2s } .drawer nav a:nth-child(4) { animation-delay: .26s }
.drawer nav a:nth-child(5) { animation-delay: .32s }
.drawer nav a { color: var(--bone-dim); transition: color .3s; }
.drawer nav a:hover, .drawer nav a[aria-current="true"] { color: var(--bone); }
.drawer nav a[aria-current="true"]::before {
  content: ""; width: 6px; height: 6px; align-self: center; flex: none;
  background: var(--crimson); rotate: 45deg; margin-left: -22px;
}
@keyframes drawer-in { from { opacity: 0 } }

@media (max-width: 960px) {
  .nav__links, .nav__vaga { display: none; }
  .nav__brand img { height: 48px; }
  .nav__burger {
    display: grid; gap: 7px; margin-left: auto;
    width: 46px; height: 46px; place-content: center;
    background: none; border: 1px solid rgba(224, 38, 43, .45); cursor: pointer;
    clip-path: polygon(6px 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%, 0 6px);
  }
  .nav__burger span { display: block; width: 20px; height: 1.5px; background: var(--bone); transition: transform .35s, width .35s; }
  .nav__burger span:last-child { width: 13px; justify-self: end; }
  .nav__burger[aria-expanded="true"] span:first-child { transform: translateY(4.25px) rotate(45deg); }
  .nav__burger[aria-expanded="true"] span:last-child { width: 20px; transform: translateY(-4.25px) rotate(-45deg); }
}

@media (prefers-reduced-motion: reduce) {
  .js-intro .nav .nav__brand, .js-intro .nav .nav__links a,
  .js-intro .nav__burger { opacity: 1; }
}