/* ============================================================
   MUNDO IMPRESSO — O mundo em camadas
   Paleta: preto #0A0A0B · grafite #17181A/#212226 · branco quente
   #F5EFE6 · âmbar #E8A33D / #B97A1F
   Tipografia: Fraunces (display editorial) + Instrument Sans
   ============================================================ */

:root{
  --ink:#0A0A0B;
  --graphite:#17181A;
  --graphite-2:#212226;
  --warm:#F5EFE6;
  --warm-dim:rgba(245,239,230,.62);
  --warm-faint:rgba(245,239,230,.38);
  --amber:#E8A33D;
  --amber-deep:#B97A1F;
  --line:rgba(245,239,230,.12);
  --display:"Fraunces", Georgia, "Times New Roman", serif;
  --sans:"Instrument Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
  --pad:clamp(1.25rem, 4vw, 4rem);
}

*,*::before,*::after{ box-sizing:border-box; margin:0; padding:0 }
html{ scroll-behavior:smooth }
html.lenis, html.lenis body{ height:auto }
.lenis.lenis-smooth{ scroll-behavior:auto !important }

body{
  background:var(--ink);
  color:var(--warm);
  font-family:var(--sans);
  font-size:1rem;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{ display:block; max-width:100% }
a{ color:inherit }

::selection{ background:var(--amber); color:var(--ink) }

/* ---------- utilitários tipográficos ---------- */
.eyebrow{
  font-size:.72rem;
  letter-spacing:.32em;
  text-transform:uppercase;
  color:var(--amber);
  font-weight:600;
}
.amber{ color:var(--amber) }

/* ---------- cabeçalho ---------- */
.site-header{
  position:fixed;
  inset:0 0 auto 0;
  z-index:60;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  padding:1rem var(--pad);
  background:linear-gradient(to bottom, rgba(10,10,11,.85), rgba(10,10,11,0));
  pointer-events:none;
}
.site-header > *{ pointer-events:auto }
.brand{
  display:flex; align-items:center; gap:.75rem;
  text-decoration:none;
}
.brand img{ width:150px; height:150px; border-radius:10px }
.brand-name{
  font-family:var(--display);
  font-size:1.3rem;
  font-weight:500;
  letter-spacing:.01em;
}
.brand-name em{ font-style:italic; color:var(--amber) }
.brand-slogan{
  font-family:var(--display);
  font-style:italic;
  font-weight:300;
  font-size:clamp(.9rem, 1.6vw, 1.05rem);
  color:var(--warm-dim);
}

/* ---------- trilho de camadas (assinatura) ---------- */
.layer-rail{
  position:fixed;
  right:calc(var(--pad) * .5);
  top:50%;
  transform:translateY(-50%);
  z-index:55;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:.8rem;
}
.layer-rail-track{
  width:2px; height:34vh;
  background:var(--line);
  position:relative;
  overflow:hidden;
}
.layer-rail-fill{
  position:absolute; left:0; bottom:0; width:100%; height:0%;
  background:repeating-linear-gradient(to top, var(--amber) 0 3px, transparent 3px 6px);
}
.layer-rail-label{
  writing-mode:vertical-rl;
  font-size:.62rem;
  letter-spacing:.28em;
  text-transform:uppercase;
  color:var(--warm-faint);
  white-space:nowrap;
}
#railLayer{ color:var(--amber) }

/* ---------- hero ---------- */
.hero{
  position:relative;
  min-height:100svh;
  display:grid;
  place-items:center;
  padding:7rem var(--pad) 5rem;
  background:
    radial-gradient(120% 90% at 50% 110%, rgba(232,163,61,.10), transparent 55%),
    linear-gradient(var(--graphite), var(--ink) 70%);
  overflow:hidden;
}
.hero-layers{
  position:absolute; inset:0;
  display:flex; flex-direction:column; justify-content:space-between;
  pointer-events:none;
}
.hero-layers i{
  height:1px; background:var(--line);
  transform-origin:left center;
  transform:scaleX(0);
}
.hero-inner{ position:relative; max-width:60rem; text-align:center }
.hero-eyebrow{ margin-bottom:1.6rem }
.hero-title{
  font-family:var(--display);
  font-weight:400;
  font-size:clamp(2.7rem, 8.5vw, 6.4rem);
  line-height:1.04;
  letter-spacing:-.015em;
}
.hero-title .line{ display:block; overflow:hidden }
.hero-title .line > span{ display:inline-block; transform:translateY(110%) }
.hero-sub{
  margin:2rem auto 0;
  max-width:38rem;
  color:var(--warm-dim);
  font-size:clamp(1rem, 1.7vw, 1.15rem);
  opacity:0;
}
.hero-actions{
  margin-top:2.6rem;
  display:flex; gap:1rem; justify-content:center; flex-wrap:wrap;
  opacity:0;
}

.btn{
  display:inline-flex; align-items:center; gap:.6rem;
  padding:.95rem 1.9rem;
  border-radius:999px;
  font-weight:600;
  font-size:.95rem;
  text-decoration:none;
  letter-spacing:.02em;
  transition:transform .25s ease, background .25s ease, color .25s ease, border-color .25s ease;
}
.btn:focus-visible{ outline:2px solid var(--amber); outline-offset:3px }
.btn-amber{
  background:var(--amber); color:var(--ink);
}
.btn-amber:hover{ background:#f2b658; transform:translateY(-2px) }
.btn-ghost{
  border:1px solid var(--line); color:var(--warm);
}
.btn-ghost:hover{ border-color:var(--amber); color:var(--amber); transform:translateY(-2px) }
.btn-lg{ padding:1.15rem 2.4rem; font-size:1.05rem }

.scroll-cue{
  position:absolute; bottom:2rem; left:50%;
  transform:translateX(-50%);
  display:flex; flex-direction:column; align-items:center; gap:.7rem;
}
.scroll-cue-line{
  width:1px; height:52px; background:var(--line);
  position:relative; overflow:hidden;
}
.scroll-cue-line::after{
  content:""; position:absolute; left:0; top:-40%;
  width:100%; height:40%;
  background:var(--amber);
  animation:cue 1.8s ease-in-out infinite;
}
@keyframes cue{ to{ top:110% } }
.scroll-cue-text{
  font-size:.62rem; letter-spacing:.3em; text-transform:uppercase;
  color:var(--warm-faint);
}

/* ---------- cenas (canvas fixado por sticky + ScrollTrigger) ---------- */
.scene{
  position:relative;
  height:420vh;             /* distância de rolagem que “toca” o clipe */
  background:var(--ink);
}
.scene-long{ height:520vh }
.scene-sticky{
  position:sticky;
  top:0;
  height:100svh;
  overflow:hidden;
  display:grid;
}
.scene-canvas{
  position:absolute; inset:0;
  width:100%; height:100%;
  display:block;
}
.scene-shade{
  position:absolute; inset:0;
  background:
    linear-gradient(to top, rgba(10,10,11,.88) 0%, rgba(10,10,11,.25) 34%, rgba(10,10,11,0) 55%),
    linear-gradient(to bottom, rgba(10,10,11,.55), transparent 26%);
  pointer-events:none;
}
.scene-copy{
  position:absolute;
  left:var(--pad);
  right:var(--pad);
  bottom:clamp(3.2rem, 9vh, 6rem);
  max-width:44rem;
}
.scene-eyebrow{ margin-bottom:1rem; opacity:0 }
.scene-title{
  font-family:var(--display);
  font-weight:400;
  font-style:italic;
  font-size:clamp(2.4rem, 6.5vw, 5rem);
  line-height:1.05;
  letter-spacing:-.01em;
  opacity:0;
}
.scene-text{
  margin-top:1.1rem;
  max-width:34rem;
  color:var(--warm-dim);
  font-size:clamp(.95rem, 1.5vw, 1.1rem);
  opacity:0;
}
.scene-hud{
  position:absolute;
  top:5.4rem;
  right:var(--pad);
  display:flex; align-items:center; gap:.7rem;
  font-size:.62rem;
  letter-spacing:.26em;
  text-transform:uppercase;
  color:var(--warm-faint);
}
.hud-layer{ color:var(--amber); min-width:7.5em }
.hud-sep{ width:2.4rem; height:1px; background:var(--line) }

/* cena dupla — clipes lado a lado, sempre */
.duo-grid{
  position:absolute; inset:0;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:2px;
  background:var(--ink);
}
.duo-cell{ position:relative; overflow:hidden }
.duo-cell .scene-canvas{ position:absolute; inset:0 }

/* ---------- galeria ---------- */
.gallery{
  position:relative;
  padding:clamp(5rem, 12vh, 9rem) var(--pad);
  background:linear-gradient(var(--ink), var(--graphite) 30%, var(--ink));
}
.gallery-head{ max-width:46rem; margin-bottom:3.5rem }
.gallery-title{
  font-family:var(--display);
  font-weight:400;
  font-size:clamp(2.2rem, 5vw, 3.8rem);
  line-height:1.08;
  margin-top:1rem;
}
.gallery-sub{ margin-top:1rem; color:var(--warm-dim) }
.gallery-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(min(21rem,100%), 1fr));
  gap:1.6rem;
}
.g-item{
  position:relative;
  border-radius:14px;
  overflow:hidden;
  background:var(--graphite-2);
  opacity:0;
  transform:translateY(34px);
  transition:opacity .8s ease, transform .8s ease;
}
.g-item.in{ opacity:1; transform:none }
.g-item img{
  width:100%; aspect-ratio:26/15; object-fit:cover;
  transition:transform .7s ease;
}
.g-item:hover img{ transform:scale(1.04) }
.g-item figcaption{
  position:absolute; inset:auto 0 0 0;
  padding:2.4rem 1.2rem 1rem;
  background:linear-gradient(to top, rgba(10,10,11,.92), transparent);
  display:flex; flex-direction:column; gap:.15rem;
}
.g-num{
  font-family:var(--display); font-style:italic;
  font-size:1.15rem;
}
.g-cap{ font-size:.82rem; color:var(--warm-dim) }

/* ---------- CTA final ---------- */
.cta{
  position:relative;
  padding:clamp(6rem, 16vh, 11rem) var(--pad);
  text-align:center;
  background:
    radial-gradient(90% 80% at 50% 0%, rgba(232,163,61,.12), transparent 60%),
    var(--graphite);
  overflow:hidden;
}
.cta-layers{
  position:absolute; inset:auto 0 0 0; height:38%;
  display:flex; flex-direction:column; justify-content:space-between;
  pointer-events:none; opacity:.6;
}
.cta-layers i{ height:1px; background:var(--line) }
.cta-inner{ position:relative; max-width:46rem; margin:0 auto }
.cta-title{
  font-family:var(--display);
  font-weight:400;
  font-size:clamp(2.4rem, 6vw, 4.6rem);
  line-height:1.08;
  margin-top:1.2rem;
}
.cta-text{ margin:1.4rem auto 2.4rem; max-width:34rem; color:var(--warm-dim) }
.cta-hint{ margin-top:1.2rem; font-size:.8rem; color:var(--warm-faint) }

/* ---------- rodapé ---------- */
.site-footer{
  padding:2.6rem var(--pad) 3rem;
  border-top:1px solid var(--line);
  display:flex; flex-wrap:wrap; gap:1.4rem;
  align-items:center; justify-content:space-between;
  background:var(--ink);
}
.foot-brand{
  display:flex; align-items:center; gap:.7rem;
  font-family:var(--display); font-style:italic;
  color:var(--warm-dim); font-size:.95rem;
}
.foot-brand img{ border-radius:8px }
.foot-nav{ display:flex; flex-wrap:wrap; gap:1.4rem }
.foot-nav a{
  font-size:.8rem; letter-spacing:.14em; text-transform:uppercase;
  color:var(--warm-dim); text-decoration:none;
}
.foot-nav a:hover{ color:var(--amber) }
.foot-note{ font-size:.78rem; color:var(--warm-faint); width:100% }

/* ---------- responsivo ---------- */
@media (max-width:760px){
  .brand-slogan{ display:none }
  .layer-rail{ right:.4rem }
  .layer-rail-track{ height:24vh }
  .scene{ height:320vh }
  .scene-long{ height:400vh }
  .scene-hud{ top:4.6rem; right:var(--pad) }
  .hud-sep{ display:none }
  .hud-file{ display:none }
  .scene-copy{ bottom:2.6rem }
  .duo-grid{ grid-template-columns:1fr 1fr }  /* lado a lado também no mobile */
  .site-footer{ flex-direction:column; align-items:flex-start }
}

/* ---------- movimento reduzido ---------- */
@media (prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto }
  .scroll-cue-line::after{ animation:none }
  .hero-title .line > span{ transform:none }
  .hero-sub,.hero-actions,.scene-eyebrow,.scene-title,.scene-text{ opacity:1 }
  .g-item{ opacity:1; transform:none; transition:none }
}