/* ==========================================================================
   ARTSHIVAYA — topo, menu e abertura
   ========================================================================== */

/* ---------------------------------- topo ---------------------------------- */
.topo {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 60;
  padding: calc(env(safe-area-inset-top) + .7rem) var(--margem) 0;
  pointer-events: none;
  transition: transform .8s var(--suave);
}
.topo--oculto { transform: translateY(-135%); }

.topo__barra {
  position: relative;
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 1rem;
  max-width: var(--largura);
  height: 3.4rem;
  margin: 0 auto;
  padding: 0 .32rem 0 1.15rem;
  border: 1px solid transparent;
  border-radius: 999px;
  transition: background .6s, border-color .6s, box-shadow .6s;
}
.topo--solido .topo__barra {
  background: linear-gradient(140deg, rgba(96, 27, 29, .58), rgba(30, 6, 7, .74));
  border-color: var(--vidro-borda);
  box-shadow: inset 0 1px 0 rgba(255, 236, 200, .14), 0 16px 40px -22px rgba(0, 0, 0, .85);
  -webkit-backdrop-filter: blur(16px) saturate(1.3);
  backdrop-filter: blur(16px) saturate(1.3);
}
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .topo--solido .topo__barra { background: rgba(36, 8, 9, .96); }
}

.topo__marca {
  display: flex;
  align-items: center;
  gap: .6rem;
  margin-right: auto;
  text-decoration: none;
  opacity: 0;
  transform: translateY(6px);
  pointer-events: none;
  transition: opacity .6s, transform .8s var(--suave);
}
.topo--solido .topo__marca { opacity: 1; transform: none; pointer-events: auto; }
.topo__chama { width: 1.05rem; height: 1.58rem; }
.topo__marca .marca-nome { width: 7.4rem; }

.topo__nav, .topo__falar { display: none; }

.topo__menu {
  display: grid;
  place-content: center;
  gap: .42rem;
  width: 2.75rem;
  height: 2.75rem;
  margin-left: auto;
  border-radius: 50%;
  -webkit-tap-highlight-color: transparent;
}
.topo__menu span { display: block; width: 1.5rem; height: 1px; background: var(--ouro-300); transition: width .5s var(--suave); }
.topo__menu span:last-child { width: .95rem; margin-left: auto; }
@media (hover: hover) { .topo__menu:hover span:last-child { width: 1.5rem; } }

.topo__progresso {
  position: absolute;
  left: 1.5rem; right: 1.5rem; bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, var(--ouro-600), var(--ouro-200));
  transform: scaleX(var(--lido, 0));
  transform-origin: left center;
  opacity: 0;
  transition: opacity .6s;
}
.topo--solido .topo__progresso { opacity: .95; }

@media (min-width: 900px) {
  .topo__barra { padding: 0 .4rem 0 1.5rem; height: 3.7rem; }
  .topo__nav { display: flex; gap: 2.3rem; margin-inline: auto; }
  .topo__nav a {
    position: relative;
    padding: .7rem 0;
    font: 400 .68rem/1 var(--inscricao);
    letter-spacing: .22em;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--creme);
  }
  .topo__nav a::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: .25rem;
    height: 1px;
    background: var(--ouro-300);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform .6s var(--suave);
  }
  .topo__nav a:hover::after, .topo__nav a[aria-current="true"]::after { transform: scaleX(1); transform-origin: left; }
  .topo__nav .ponto-novo { position: absolute; top: .3rem; right: -.75rem; margin: 0; }
  .topo__falar { display: inline-flex; }
  .topo__menu { display: none; }
  .topo__marca { margin-right: 0; }
  .topo__marca .marca-nome { width: 8.6rem; }
}

/* ---------------------------------- menu ---------------------------------- */
.menu {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100dvh;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--creme);
  overflow: hidden;
}
.menu::backdrop { background: rgba(12, 3, 3, .5); }
.menu__dentro {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  gap: 1.9rem;
  padding: calc(env(safe-area-inset-top) + .95rem) var(--margem) calc(env(safe-area-inset-bottom) + 1.5rem);
  background:
    radial-gradient(110% 60% at 100% 0%, rgba(140, 40, 42, .5), transparent 60%),
    linear-gradient(165deg, rgba(48, 11, 12, .985), rgba(18, 4, 5, .99));
  overflow-y: auto;
}
.menu[open] .menu__dentro { animation: menu-entra .75s var(--suave) both; }
.menu__fechar { align-self: flex-end; }
.menu__lista { display: grid; margin-top: auto; }
.menu__lista a {
  display: flex;
  align-items: baseline;
  gap: 1.1rem;
  padding: .5rem 0 .65rem;
  border-bottom: 1px solid var(--linha);
  font: 400 clamp(2.3rem, 11vw, 3.3rem)/1.08 var(--serifa);
  text-decoration: none;
  color: var(--creme);
  -webkit-tap-highlight-color: transparent;
}
.menu__lista a small { font: 400 .64rem/1 var(--inscricao); letter-spacing: .22em; color: var(--ouro-400); }
.menu__lista a .selo { align-self: center; margin-left: auto; }
.menu[open] .menu__lista a { animation: subir .95s var(--suave) both; }
.menu[open] .menu__lista a:nth-child(1) { animation-delay: .12s; }
.menu[open] .menu__lista a:nth-child(2) { animation-delay: .19s; }
.menu[open] .menu__lista a:nth-child(3) { animation-delay: .26s; }
.menu[open] .menu__lista a:nth-child(4) { animation-delay: .33s; }
.menu__atalhos { display: grid; gap: .9rem; }
.menu[open] .menu__atalhos, .menu[open] .menu__dentro > .botao { animation: subir .95s var(--suave) .42s both; }
@keyframes menu-entra {
  from { opacity: 0; clip-path: circle(0% at calc(100% - 2.6rem) 2.6rem); }
  to { opacity: 1; clip-path: circle(150% at calc(100% - 2.6rem) 2.6rem); }
}
@media (min-width: 900px) { .menu { display: none !important; } }

/* -------------------------------- abertura -------------------------------- */
.intro { position: relative; z-index: 0; }
.intro__palco { position: relative; overflow: clip; isolation: isolate; }

.intro__fundo {
  position: absolute;
  inset: 0 0 auto 0;
  height: 100lvh;
  z-index: 0;
  overflow: clip;
}
/* o clarão quente do fogo, respirando devagar */
.intro__fundo::before {
  content: "";
  position: absolute;
  left: 50%; top: 46svh;
  width: 130vmin;
  aspect-ratio: 1;
  translate: -50% -50%;
  background: radial-gradient(closest-side, rgba(255, 140, 50, .24), rgba(176, 37, 38, .14) 46%, transparent 72%);
  animation: respirar 5.5s ease-in-out infinite;
}
.intro__foto { position: absolute; margin: 0; }
.intro__foto img { width: 100%; height: 100%; object-fit: cover; }

.intro__foto--abertura {
  top: 15svh;
  left: 50%;
  height: 76svh;
  aspect-ratio: 933 / 1400;
  translate: -50% 0;
  -webkit-mask-image: linear-gradient(to bottom, transparent 1%, #000 14%, #000 60%, transparent 96%);
  mask-image: linear-gradient(to bottom, transparent 1%, #000 14%, #000 60%, transparent 96%);
}
.js .intro__foto--abertura img {
  opacity: 0;
  scale: 1.08;
  transition: opacity 2.4s ease .1s, scale 3.6s var(--suave) .1s;
}
.js .intro__foto--abertura img.ok { opacity: 1; scale: 1; }

.intro__foto--ato { display: none; }

.intro__veu {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to bottom, rgba(20, 4, 5, .74) 0%, rgba(20, 4, 5, 0) 21%),
    linear-gradient(to top, rgba(20, 4, 5, .98) 0%, rgba(20, 4, 5, .88) 15%, rgba(20, 4, 5, .42) 33%, rgba(20, 4, 5, 0) 52%);
}
.intro__brasas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.intro__conteudo {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  min-height: 100svh;
  padding: calc(env(safe-area-inset-top) + 1.25rem) var(--margem) calc(env(safe-area-inset-bottom) + 1rem);
  text-align: center;
}

.intro__marca { display: grid; justify-items: center; gap: .68rem; width: 100%; }
.intro__chama {
  position: relative;
  display: block;
  width: clamp(2rem, 9.2vw, 2.7rem);
  aspect-ratio: 180 / 270;
}
.intro__chama svg { position: relative; width: 100%; height: 100%; overflow: visible; transform-origin: 50% 100%; animation: tremular 3.6s ease-in-out infinite; }
.intro__chama::before {
  content: "";
  position: absolute;
  inset: -70% -110%;
  background: radial-gradient(closest-side, rgba(255, 176, 84, .5), transparent 72%);
  animation: respirar 3.6s ease-in-out infinite;
}
.intro__nome { width: min(82vw, 24rem); }
.intro__lema {
  margin-right: -.34em;
  font: 400 clamp(.58rem, 2.5vw, .74rem)/1.2 var(--inscricao);
  letter-spacing: .34em;
  text-transform: uppercase;
  color: var(--creme);
}

.intro__chamada { display: flex; flex-direction: column; align-items: center; gap: .95rem; width: 100%; }
.intro__descricao {
  font: italic 400 clamp(1.6rem, 7.3vw, 2.7rem)/1.06 var(--serifa);
  color: var(--creme);
  text-shadow: 0 2px 24px rgba(20, 4, 5, .7);
}
.intro__descricao em {
  background: var(--ouro-metal);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  padding-right: .08em;
}

/* os três caminhos, numa única cápsula de vidro */
.intro__caminhos {
  display: grid;
  grid-template-columns: 1fr 1fr 1.28fr;
  gap: .15rem;
  width: min(100%, 26rem);
  padding: .28rem;
  border-radius: 999px;
  border: 1px solid var(--vidro-borda);
  background: linear-gradient(140deg, rgba(120, 33, 36, .42), rgba(40, 9, 10, .62));
  box-shadow: inset 0 1px 0 rgba(255, 236, 200, .16), 0 18px 40px -18px rgba(0, 0, 0, .8);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  backdrop-filter: blur(14px) saturate(1.3);
}
.intro__caminhos a {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 2.9rem;
  padding: 0 .3rem;
  border-radius: 999px;
  font: 400 clamp(.6rem, 2.8vw, .72rem)/1 var(--inscricao);
  letter-spacing: .15em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--creme);
  transition: background .5s, color .4s;
  -webkit-tap-highlight-color: transparent;
}
.intro__caminhos a:first-child {
  color: #2a0809;
  background: var(--ouro-metal);
  background-size: 200% 100%;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .5);
}
.intro__caminhos a .ponto-novo { position: absolute; top: .52rem; right: .62rem; margin: 0; }
@media (hover: hover) {
  .intro__caminhos a:not(:first-child):hover { background: rgba(227, 187, 114, .16); color: var(--ouro-200); }
}

.intro__role {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: .45rem;
  padding: .25rem 1rem 0;
  font: 400 .56rem/1 var(--inscricao);
  letter-spacing: .32em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--areia);
  -webkit-tap-highlight-color: transparent;
}
.intro__role span { margin-right: -.32em; }
.intro__role i {
  width: 1px;
  height: 1.5rem;
  background: linear-gradient(var(--ouro-300), transparent);
  transform-origin: top;
  animation: descer 2.4s var(--vai-volta) infinite;
}

/* entrada da abertura: a chama acende, o nome se abre, o resto sobe */
.js .intro__chama { animation: acender 1.7s var(--suave) .15s both; }
.js .intro__nome { animation: abrir-nome 1.8s var(--suave) .5s both; }
.js .intro__nome .marca-nome { animation: brilho 9s ease-in-out 2.6s infinite; }
.js .intro__lema { animation: espalhar 1.7s var(--suave) .95s both; }
.js .intro__descricao { animation: subir 1.4s var(--suave) 1.2s both; }
.js .intro__caminhos { animation: subir 1.4s var(--suave) 1.36s both; }
.js .intro__role { animation: subir 1.4s var(--suave) 1.62s both; }

@keyframes acender {
  0% { opacity: 0; transform: translateY(.8rem) scale(.5); filter: blur(8px) brightness(2.2); }
  55% { opacity: 1; filter: blur(0) brightness(1.5); }
  100% { opacity: 1; transform: none; filter: none; }
}
@keyframes abrir-nome {
  0% { opacity: 0; clip-path: inset(0 50% 0 50%); transform: scale(1.07); }
  100% { opacity: 1; clip-path: inset(0 0 0 0); transform: none; }
}
@keyframes espalhar {
  0% { opacity: 0; letter-spacing: .72em; }
  100% { opacity: 1; letter-spacing: .34em; }
}
@keyframes subir {
  from { opacity: 0; transform: translateY(1.3rem); }
  to { opacity: 1; transform: none; }
}
@keyframes brilho {
  0%, 72% { background-position: 0% 50%; }
  100% { background-position: 100% 50%; }
}
@keyframes tremular {
  0%, 100% { transform: scale(1, 1) skewX(0deg); }
  22% { transform: scale(.985, 1.03) skewX(-1.2deg); }
  47% { transform: scale(1.01, .985) skewX(.9deg); }
  71% { transform: scale(.99, 1.022) skewX(-.6deg); }
}
@keyframes respirar {
  0%, 100% { opacity: .72; }
  50% { opacity: 1; }
}
@keyframes descer {
  0% { transform: scaleY(0); transform-origin: top; }
  45% { transform: scaleY(1); transform-origin: top; }
  55% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* atos (arte · autenticidade · movimento) — versão simples, sem cena fixa */
.intro__atos {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 2.6rem;
  padding: 3.5rem var(--margem) 1rem;
  text-align: center;
}
.ato { display: grid; justify-items: center; gap: .55rem; }
.ato__palavra { font: italic 400 clamp(3rem, 15vw, 5rem)/.95 var(--serifa); color: var(--creme); }
.ato__texto { max-width: 20rem; font: 500 1.22rem/1.36 var(--serifa); color: var(--areia); }

/* ------------------------- abertura como cena fixa ------------------------- */
.js .intro--cena {
  --p: 0;
  --fora: clamp(0, calc(var(--p) / .12), 1);
  --some: clamp(0, calc((var(--p) - .09) / .1), 1);
  height: 400svh;
}
/* o último ato não se apaga: ele sobe com a página, e um degradê costura a emenda */
.js .intro--cena::after {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 100%;
  height: 34svh;
  background: linear-gradient(to bottom, var(--vinho-950), rgba(20, 4, 5, 0));
  pointer-events: none;
}
.js .intro--cena .intro__palco { position: sticky; top: 0; height: 100lvh; }
.js .intro--cena .intro__conteudo { position: absolute; inset: 0 0 auto 0; height: 100svh; min-height: 0; }
.js .intro--cena[data-fase]:not([data-fase="abertura"]) .intro__conteudo { visibility: hidden; pointer-events: none; }

.js .intro--cena .intro__marca {
  opacity: calc(1 - var(--fora));
  transform: translate3d(0, calc(var(--fora) * -7svh), 0);
}
.js .intro--cena .intro__chamada {
  opacity: calc(1 - var(--fora) * 1.5);
  transform: translate3d(0, calc(var(--fora) * 4svh), 0);
}
.js .intro--cena .intro__foto--abertura {
  opacity: calc(1 - var(--some));
  scale: calc(1 + var(--p) * 1.15);
  will-change: opacity, scale;
}
.js .intro--cena .intro__fundo::before { opacity: calc(1 - var(--some)); animation: none; }

/* cada ato tem a sua janela na rolagem: entra entre a e b, sai entre c e d */
.js .intro--cena [data-ato] {
  --entra: clamp(0, calc((var(--p) - var(--a)) / (var(--b) - var(--a))), 1);
  --sai: clamp(0, calc((var(--p) - var(--c)) / (var(--d) - var(--c))), 1);
  --vivo: calc(var(--entra) - var(--sai));
}
.js .intro--cena [data-ato="1"] { --a: .11; --b: .21; --c: .34; --d: .41; }
.js .intro--cena [data-ato="2"] { --a: .38; --b: .48; --c: .61; --d: .68; }
.js .intro--cena [data-ato="3"] { --a: .65; --b: .76; --c: 2; --d: 3; }

.js .intro--cena .intro__foto--ato {
  display: block;
  inset: 0;
  opacity: var(--vivo);
  will-change: opacity;
}
.js .intro--cena .intro__foto--ato img {
  scale: calc(1.16 - var(--entra) * .1 - var(--sai) * .03);
  will-change: scale;
}

.js .intro--cena .intro__atos {
  position: absolute;
  inset: 0 0 auto 0;
  height: 100svh;
  z-index: 3;
  display: block;
  padding: 0;
  pointer-events: none;
}
.js .intro--cena .ato {
  position: absolute;
  inset: 0;
  align-content: end;
  justify-items: start;
  gap: .7rem;
  padding: 0 var(--margem) calc(env(safe-area-inset-bottom) + 12svh);
  text-align: left;
  opacity: var(--vivo);
}
.js .intro--cena .ato__palavra {
  margin-left: -.04em;
  font-size: clamp(6rem, 40vw, 13rem);
  line-height: .82;
  letter-spacing: -.035em;
  text-shadow: 0 6px 40px rgba(20, 4, 5, .55);
  transform: translate3d(0, calc((1 - var(--entra)) * 4rem - var(--sai) * 3rem), 0);
}
.js .intro--cena .ato__palavra--longa { font-size: clamp(3.1rem, 15.4vw, 8rem); line-height: .95; }
.js .intro--cena .ato__palavra--media { font-size: clamp(3.8rem, 20.5vw, 10rem); line-height: .9; }
.js .intro--cena .ato__texto {
  max-width: 18rem;
  font-size: 1.28rem;
  color: var(--creme);
  opacity: clamp(0, calc(var(--entra) * 2.4 - 1.4), 1);
  transform: translate3d(0, calc((1 - var(--entra)) * 1.6rem), 0);
}

/* telas baixas: compacta a marca para não encostar no fogo */
@media (max-height: 700px) {
  .intro__marca { gap: .45rem; }
  .intro__chama { width: 1.7rem; }
  .intro__nome { width: min(70vw, 20rem); }
  .intro__chamada { gap: .7rem; }
  .intro__descricao { font-size: clamp(1.45rem, 6.6vw, 2.2rem); }
}

/* ------------------------------ telas largas ------------------------------ */
@media (min-width: 900px) {
  .intro__fundo::before { left: 72%; top: 50%; width: 110vh; }
  .intro__foto--abertura {
    top: 50%;
    left: auto;
    right: max(-3vw, calc(50vw - 47rem));
    height: 108vh;
    translate: 0 -50%;
    -webkit-mask-image: linear-gradient(to bottom, transparent, #000 13%, #000 83%, transparent), linear-gradient(to right, transparent, #000 17%, #000 88%, transparent);
    -webkit-mask-composite: source-in;
    mask-image: linear-gradient(to bottom, transparent, #000 13%, #000 83%, transparent), linear-gradient(to right, transparent, #000 17%, #000 88%, transparent);
    mask-composite: intersect;
  }
  .intro__veu {
    background:
      linear-gradient(to right, rgba(20, 4, 5, .92) 0%, rgba(20, 4, 5, .6) 36%, rgba(20, 4, 5, 0) 60%),
      linear-gradient(to top, rgba(20, 4, 5, .9) 0%, rgba(20, 4, 5, 0) 26%);
  }
  .intro__conteudo {
    align-items: flex-start;
    justify-content: center;
    gap: clamp(2rem, 5vh, 3.4rem);
    padding-inline: max(var(--margem), calc(50vw - 36rem));
    text-align: left;
  }
  .intro__marca { justify-items: start; gap: 1.2rem; width: min(46vw, 40rem); }
  .intro__chama { width: clamp(2.8rem, 4.4vw, 4rem); margin-left: .6rem; }
  .intro__nome { width: 100%; }
  .intro__lema { margin: 0 0 0 .7rem; font-size: clamp(.72rem, .95vw, .9rem); letter-spacing: .42em; }
  .intro__chamada { align-items: flex-start; gap: 1.5rem; width: min(46vw, 34rem); padding-left: .7rem; }
  .intro__descricao { font-size: clamp(2.4rem, 3.7vw, 3.8rem); }
  .intro__caminhos a { min-height: 3.2rem; font-size: .72rem; letter-spacing: .18em; }
  .intro__role { flex-direction: row; gap: 1rem; padding: .6rem 0 0; }
  .intro__role i { width: 2.6rem; height: 1px; background: linear-gradient(90deg, var(--ouro-300), transparent); animation: none; }
  @keyframes espalhar {
    0% { opacity: 0; letter-spacing: .9em; }
    100% { opacity: 1; letter-spacing: .42em; }
  }

  .js .intro--cena .intro__foto--ato {
    inset: auto;
    top: 50%;
    right: max(7vw, calc(50vw - 33rem));
    height: 78vh;
    aspect-ratio: 2 / 3;
    translate: 0 calc(-50% + (1 - var(--entra)) * 5vh - var(--sai) * 5vh);
    border-radius: 999px 999px 18px 18px;
    overflow: hidden;
    box-shadow: 0 0 0 1px var(--linha), 0 50px 90px -40px rgba(0, 0, 0, .9);
  }
  .js .intro--cena .ato {
    align-content: center;
    gap: 1.1rem;
    padding: 0 max(var(--margem), calc(50vw - 36rem));
  }
  .js .intro--cena .ato__palavra { font-size: clamp(9rem, 19vw, 20rem); }
  .js .intro--cena .ato__palavra--longa { font-size: clamp(5rem, 9.6vw, 10.5rem); }
  .js .intro--cena .ato__palavra--media { font-size: clamp(6rem, 12.5vw, 13rem); }
  .js .intro--cena .ato__texto { max-width: 24rem; font-size: 1.6rem; }
}

@media (prefers-reduced-motion: reduce) {
  .js .intro__chama, .js .intro__nome, .js .intro__lema, .js .intro__descricao, .js .intro__caminhos, .js .intro__role { animation: none; opacity: 1; }
  .js .intro__foto--abertura img { opacity: 1; scale: 1; }
}