/* ============================================================
   Alvops — camada imersiva
   Depende de css/portfolio.css (tokens). Carregar DEPOIS dele.
   Fonte de verdade dos tokens: DESIGN.md (raiz do repo)
   ============================================================ */

/* ---------- spotlight que segue o cursor ---------- */
#spotlight {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background: radial-gradient(
    520px circle at var(--mx, 50%) var(--my, 0%),
    rgba(var(--accent-rgb), .07),
    transparent 65%
  );
  opacity: 0; transition: opacity .6s var(--ease-out);
}
#spotlight.on { opacity: 1; }
@media (hover: none) { #spotlight { display: none; } }

/* ---------- marca e nav mobile ---------- */
nav .marca {
  font-family: var(--fonte-display); font-weight: 800;
  font-size: 1.05rem; letter-spacing: -.01em; color: var(--texto);
  text-transform: none;
}
nav .marca strong { color: var(--accent); font-weight: 800; }

.nav-toggle {
  display: none; width: 40px; height: 40px; flex: none;
  background: transparent; border: 1px solid var(--linha); border-radius: 6px;
  cursor: pointer; padding: 0; position: relative;
}
.nav-toggle span {
  display: block; width: 16px; height: 1.5px; background: var(--texto);
  margin: 3.5px auto; transition: transform .3s var(--ease-out), opacity .3s;
}
.nav-toggle[aria-expanded="true"] span:first-child { transform: translateY(4.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:last-child { transform: translateY(-4.5px) rotate(-45deg); }

@media (max-width: 760px) {
  nav { position: sticky; flex-wrap: nowrap; }
  .nav-toggle { display: block; }
  nav .links {
    position: fixed; inset: 61px 0 auto 0;
    flex-direction: column; align-items: flex-start; gap: 0;
    background: rgba(var(--fundo-rgb), .98); backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--linha);
    padding: .5rem 1rem 1rem;
    transform: translateY(-8px); opacity: 0; pointer-events: none;
    transition: opacity .25s var(--ease-out), transform .25s var(--ease-out);
  }
  nav .links.is-open { transform: none; opacity: 1; pointer-events: auto; }
  nav .links a {
    display: block; width: 100%; padding: .85rem .25rem;
    font-size: var(--fs-body); border-bottom: 1px solid var(--linha-sutil);
  }
  nav .links a:last-child { border-bottom: 0; }
}

/* ---------- hero imersivo em camadas ---------- */
.hero-imersivo {
  position: relative;
  min-height: 100svh;
  display: flex; flex-direction: column; justify-content: center; align-items: center;
  text-align: center;
  padding: 7rem 1.5rem 4rem;
  overflow: hidden;
  isolation: isolate;
}

/* camada 0: malha de nós (canvas) */
.hero-imersivo .malha {
  position: absolute; inset: 0; z-index: 0;
  width: 100%; height: 100%;
  opacity: .9;
}

/* camada 1: gradiente de profundidade */
.hero-imersivo::before {
  content: ''; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    radial-gradient(ellipse 70% 50% at 50% 42%, rgba(var(--accent-rgb), .10), transparent 70%),
    radial-gradient(ellipse 100% 60% at 50% 100%, rgba(var(--fundo-rgb), .95), transparent 60%);
}

/* camada 2: vinheta que fecha a base */
.hero-imersivo::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 40%; z-index: 2;
  pointer-events: none;
  background: linear-gradient(to bottom, transparent, var(--fundo));
}

.hero-imersivo > .conteudo { position: relative; z-index: 3; max-width: 860px; }

/* selo de produto principal */
.selo-produto {
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: var(--fonte-mono); font-size: var(--fs-micro);
  text-transform: uppercase; letter-spacing: .16em; color: var(--accent);
  background: rgba(var(--accent-rgb), .06);
  border: 1px solid rgba(var(--accent-rgb), .22);
  border-radius: 100px; padding: .4rem .85rem;
  backdrop-filter: blur(4px);
}
.selo-produto::before {
  content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 0 0 rgba(var(--accent-rgb), .7);
  animation: pulso 2.6s var(--ease-out) infinite;
}
@keyframes pulso {
  0%   { box-shadow: 0 0 0 0 rgba(var(--accent-rgb), .55); }
  70%  { box-shadow: 0 0 0 9px rgba(var(--accent-rgb), 0); }
  100% { box-shadow: 0 0 0 0 rgba(var(--accent-rgb), 0); }
}

/* h1 com revelação palavra por palavra */
.hero-imersivo h1 {
  font-size: clamp(2rem, 6.2vw, 4rem);
  line-height: 1.08; letter-spacing: -.03em; font-weight: 700;
  margin: 1.5rem auto 0; max-width: 18ch;
}
.hero-imersivo h1 em { color: var(--accent); font-style: normal; }
.palavra { display: inline-block; overflow: hidden; vertical-align: top; }
.palavra > span {
  display: inline-block;
  transform: translateY(105%) rotate(2deg);
  opacity: 0;
  transition: transform .85s var(--ease-out), opacity .85s var(--ease-out);
  transition-delay: calc(var(--i, 0) * 65ms + 250ms);
}
.pronto .palavra > span { transform: none; opacity: 1; }

.hero-imersivo .sub {
  max-width: 54ch; margin: 1.5rem auto 0;
  color: var(--secundario, var(--texto-fraco));
  font-size: var(--fs-lead); line-height: 1.6;
  opacity: 0; transform: translateY(14px);
  transition: opacity .9s var(--ease-out) .85s, transform .9s var(--ease-out) .85s;
}
.pronto .hero-imersivo .sub { opacity: 1; transform: none; }

.hero-imersivo .cta {
  margin-top: 2.25rem; display: flex; gap: .85rem; justify-content: center; flex-wrap: wrap;
  opacity: 0; transform: translateY(14px);
  transition: opacity .9s var(--ease-out) 1.05s, transform .9s var(--ease-out) 1.05s;
}
.pronto .hero-imersivo .cta { opacity: 1; transform: none; }

/* botão primário com brilho que percorre */
.btn.primario { position: relative; overflow: hidden; }
.btn.primario::after {
  content: ''; position: absolute; top: 0; bottom: 0; width: 45%;
  left: -60%; pointer-events: none;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,.35), transparent);
  transition: left .55s var(--ease-out);
}
.btn.primario:hover::after { left: 115%; }

/* indicador de rolagem */
.rolar {
  position: absolute; bottom: 1.75rem; left: 50%; transform: translateX(-50%); z-index: 3;
  font-family: var(--fonte-mono); font-size: var(--fs-micro);
  text-transform: uppercase; letter-spacing: .18em; color: var(--texto-fraco);
  display: flex; flex-direction: column; align-items: center; gap: .5rem;
  opacity: 0; animation: surge .8s var(--ease-out) 1.6s forwards;
}
.rolar i {
  display: block; width: 1px; height: 32px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: desce 2.2s var(--ease-out) infinite;
}
@keyframes surge { to { opacity: 1; } }
@keyframes desce {
  0%   { transform: scaleY(0); transform-origin: top; opacity: 0; }
  40%  { transform: scaleY(1); transform-origin: top; opacity: 1; }
  100% { transform: scaleY(1); transform-origin: bottom; opacity: 0; }
}

/* ---------- revelação de texto em blocos ---------- */
.revela-linha {
  display: block; overflow: hidden;
  padding-bottom: .12em; margin-bottom: -.12em;
}
.revela-linha > span {
  display: block; transform: translateY(100%); opacity: 0;
  transition: transform .8s var(--ease-out), opacity .8s var(--ease-out);
  transition-delay: calc(var(--d, 0) * 90ms);
}
.revela-linha.is-visible > span { transform: none; opacity: 1; }

/* ---------- seção sticky: narrativa do produto ---------- */
.narrativa {
  position: relative;
  display: grid; grid-template-columns: 1fr 1fr; gap: 3rem;
  align-items: start;
  padding-top: 4rem;
}
.narrativa .trilha { display: flex; flex-direction: column; gap: 38vh; padding: 30vh 0 28vh; }
.narrativa .etapa-texto {
  opacity: .28; transition: opacity .5s var(--ease-out), transform .5s var(--ease-out);
  transform: translateY(6px);
}
.narrativa .etapa-texto.ativa { opacity: 1; transform: none; }
.narrativa .etapa-texto .passo {
  font-family: var(--fonte-mono); font-size: var(--fs-micro); color: var(--accent);
  text-transform: uppercase; letter-spacing: .16em; display: block; margin-bottom: .6rem;
}
.narrativa .etapa-texto h3 {
  font-size: clamp(1.3rem, 3vw, 1.75rem); margin: 0 0 .75rem; letter-spacing: -.02em;
}
.narrativa .etapa-texto p {
  margin: 0; color: var(--texto-fraco); font-size: var(--fs-body); line-height: 1.65; max-width: 42ch;
}

/* painel fixo do fluxo */
.narrativa .painel {
  /* altura sempre cabe na tela (desconta o menu fixo) e fica centralizada no espaço visível */
  --painel-h: min(320px, calc(100vh - 9rem));
  position: sticky; top: calc(4rem + (100vh - 4rem - var(--painel-h)) / 2);
  height: var(--painel-h);
  width: 100%; max-width: 480px; justify-self: end;
  margin-top: 0; margin-bottom: 2rem;
  background: var(--superficie);
  border: 1px solid var(--linha); border-radius: 12px;
  overflow: hidden; isolation: isolate;
  box-shadow: 0 24px 64px -32px rgba(0,0,0,.8);
}
.narrativa .painel::before {
  content: ''; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background:
    linear-gradient(rgba(var(--accent-rgb), .045) 1px, transparent 1px) 0 0 / 100% 34px,
    linear-gradient(90deg, rgba(var(--accent-rgb), .045) 1px, transparent 1px) 0 0 / 34px 100%;
  mask-image: radial-gradient(ellipse 75% 75% at 50% 45%, #000, transparent 75%);
}
.narrativa .painel .quadro {
  position: absolute; inset: 0; z-index: 1;
  display: flex; flex-direction: column; justify-content: center; gap: .6rem;
  padding: 1.25rem 1.4rem;
  opacity: 0; transform: translateY(12px) scale(.985);
  transition: opacity .55s var(--ease-out), transform .55s var(--ease-out);
  pointer-events: none;
}
.narrativa .painel .quadro.ativo { opacity: 1; transform: none; pointer-events: auto; }

/* linha de log do painel */
.log-linha {
  display: flex; align-items: flex-start; gap: .65rem;
  font-family: var(--fonte-mono); font-size: var(--fs-mini);
  background: var(--superficie-2); border: 1px solid var(--linha-sutil);
  border-radius: 6px; padding: .6rem .75rem; color: var(--texto-fraco);
  opacity: 0; transform: translateX(-8px);
  transition: opacity .45s var(--ease-out), transform .45s var(--ease-out);
  transition-delay: calc(var(--l, 0) * 110ms);
}
.quadro.ativo .log-linha { opacity: 1; transform: none; }
.log-linha b { color: var(--texto); font-weight: 600; }
.log-linha .marca-t { color: var(--accent); flex: none; }
.log-linha.ok { border-color: rgba(79,191,127,.28); }
.log-linha.ok .marca-t { color: var(--verde); }

@media (max-width: 860px) {
  .narrativa { grid-template-columns: 1fr; gap: 1.5rem; }
  .narrativa .painel { position: relative; top: 0; transform: none; order: -1; height: auto; min-height: 240px; max-width: none; aspect-ratio: auto; margin-top: 0; }
  .narrativa .trilha { gap: 2.5rem; padding: 1.5rem 0 0; }
  .narrativa .etapa-texto { opacity: 1; transform: none; }
}

/* ---------- card de produto em destaque ---------- */
.produto-destaque {
  position: relative; overflow: hidden;
  background: var(--superficie); border: 1px solid var(--linha);
  border-radius: 12px; padding: clamp(1.5rem, 4vw, 2.5rem);
  display: grid; grid-template-columns: 1.3fr 1fr; gap: 2rem; align-items: center;
}
.produto-destaque::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(ellipse 60% 100% at 100% 0%, rgba(var(--accent-rgb), .09), transparent 65%);
}
.produto-destaque > * { position: relative; }
.produto-destaque h3 { font-size: clamp(1.4rem, 3.4vw, 2rem); margin: .75rem 0 .85rem; letter-spacing: -.025em; }
.produto-destaque p { color: var(--texto-fraco); font-size: var(--fs-body); line-height: 1.65; margin: 0 0 1.25rem; }
.lista-check { list-style: none; margin: 0 0 1.5rem; padding: 0; display: grid; gap: .6rem; }
.lista-check li {
  display: flex; align-items: flex-start; gap: .6rem;
  font-size: var(--fs-sm); color: var(--texto-fraco); line-height: 1.5;
}
.lista-check li::before {
  content: '→'; color: var(--accent); font-family: var(--fonte-mono); flex: none; line-height: 1.5;
}
@media (max-width: 760px) { .produto-destaque { grid-template-columns: 1fr; gap: 1.5rem; } }

/* ---------- contador animado ---------- */
.numero strong[data-conta] { font-variant-numeric: tabular-nums; }

/* ---------- card com borda que acende no hover (tilt suave) ---------- */
.card-i {
  position: relative; background: var(--superficie);
  border: 1px solid var(--linha); border-radius: 8px; padding: 1.5rem;
  text-decoration: none; display: block; overflow: hidden;
  transition: transform .35s var(--ease-out), border-color .3s, box-shadow .3s;
  will-change: transform;
}
.card-i::before {
  content: ''; position: absolute; inset: 0; opacity: 0; pointer-events: none;
  background: radial-gradient(
    320px circle at var(--cx, 50%) var(--cy, 0%),
    rgba(var(--accent-rgb), .12), transparent 70%
  );
  transition: opacity .35s ease;
}
.card-i:hover, .card-i:focus-visible {
  border-color: var(--accent);
  box-shadow: var(--shadow-accent-forte);
  transform: translateY(-3px);
  outline: none;
}
.card-i:hover::before { opacity: 1; }
.card-i > * { position: relative; }
.card-i h3 { margin: 0 0 .5rem; font-size: var(--fs-body); font-weight: 700; }
.card-i p { margin: 0; color: var(--texto-fraco); font-size: var(--fs-sm); line-height: 1.55; }

/* ---------- divisor com brilho ---------- */
.divisor {
  height: 1px; border: 0; margin: 4rem 0 0;
  background: linear-gradient(90deg, transparent, var(--linha) 20%, var(--linha) 80%, transparent);
  position: relative;
}
.divisor::after {
  content: ''; position: absolute; left: 50%; top: -1px; width: 90px; height: 3px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at center, rgba(var(--accent-rgb), .55), transparent 70%);
}

/* ---------- respeito a redução de movimento ---------- */
@media (prefers-reduced-motion: reduce) {
  .palavra > span,
  .revela-linha > span,
  .hero-imersivo .sub,
  .hero-imersivo .cta { transform: none !important; opacity: 1 !important; transition: none !important; }
  .narrativa .etapa-texto { opacity: 1 !important; }
  .narrativa .painel .quadro { position: relative; opacity: 1; transform: none; }
  .narrativa .painel { aspect-ratio: auto; height: auto; }
  .log-linha { opacity: 1 !important; transform: none !important; }
  .rolar i, .selo-produto::before { animation: none; }
  .hero-imersivo .malha { display: none; }
}


/* ---------- quem somos ---------- */
@media (max-width: 760px) {
  .quem-grid { grid-template-columns: 1fr !important; gap: 1.5rem !important; }
}

/* ---------- âncoras sob o nav sticky ---------- */
section[id], header[id] { scroll-margin-top: 72px; }