/* ============================================================
   Make it Real — base, tipografia e primitivas
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  margin: 0;
  background: var(--ink-900);
  color: var(--paper);
  font-family: var(--f-body);
  font-size: var(--t-body);
  line-height: 1.6;
  font-synthesis-weight: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Textura de mesa de impressão: malha fina, quase invisível.
   É o que separa "fundo preto" de "chão de fábrica". */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.028) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.028) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 120% 90% at 50% 0%, #000 0%, transparent 78%);
}

/* Grão: tira o aspecto "vetor limpo demais" do preto chapado. */
body::after {
  content: "";
  position: fixed;
  /* O grão é um ladrilho de 240px que se repete — não precisa (nem deve)
     cobrir 4x a viewport: isso custa caro para rasterizar. */
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: .03;
  background-repeat: repeat;
  will-change: auto;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)'/%3E%3C/svg%3E");
}

main, header, footer { position: relative; z-index: 1; }

/* --- Títulos ------------------------------------------------ */
h1, h2, h3, h4 {
  font-family: var(--f-display);
  font-weight: 800;
  line-height: .96;
  letter-spacing: -.035em;
  margin: 0;
  text-wrap: balance;
}
h1 { font-size: var(--t-h1); }
h2 { font-size: var(--t-h2); }
h3 { font-size: var(--t-h3); letter-spacing: -.02em; line-height: 1.1; }

p { margin: 0 0 1.1em; text-wrap: pretty; }
p:last-child { margin-bottom: 0; }

a { color: inherit; text-decoration: none; }

strong, b { font-weight: 700; color: #fff; }

ul, ol { margin: 0; padding: 0; list-style: none; }

img, video, svg { display: block; max-width: 100%; }

::selection { background: var(--l-magenta); color: #fff; }

:focus-visible {
  outline: 2px solid var(--l-lime);
  outline-offset: 3px;
  border-radius: 2px;
}

/* --- Primitivas --------------------------------------------- */

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gut);
}

.section { padding-block: var(--sec-y); position: relative; }

/* Etiqueta técnica monoespaçada — o "carimbo de ficha técnica" */
.tag {
  font-family: var(--f-mono);
  font-size: var(--t-label);
  font-weight: 500;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--paper-mute);
  display: inline-flex;
  align-items: center;
  gap: .6em;
}
.tag::before {
  content: "";
  width: 22px;
  height: 3px;
  border-radius: var(--layer-r);
  background: currentColor;
  flex: none;
}
.tag--orange  { color: var(--l-orange); }
.tag--lime    { color: var(--l-lime); }
.tag--green   { color: var(--l-green); }
.tag--magenta { color: var(--l-magenta); }
.tag--blue    { color: var(--l-blue); }

.lead {
  font-size: var(--t-lead);
  line-height: 1.5;
  color: var(--paper-dim);
  max-width: var(--maxw-txt);
}

.mono {
  font-family: var(--f-mono);
  font-size: var(--t-label);
  letter-spacing: .1em;
  text-transform: uppercase;
}

.dim { color: var(--paper-mute); }

/* Cabeçalho de seção padrão */
.sec-head {
  display: grid;
  gap: 1.5rem;
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
}
.sec-head h2 { max-width: 18ch; }
.sec-head .lead { margin-top: .25rem; }

@media (min-width: 900px) {
  .sec-head--split {
    grid-template-columns: 1.05fr .95fr;
    align-items: end;
    gap: clamp(2rem, 5vw, 5rem);
  }
}

/* --- Botões -------------------------------------------------- */
.btn {
  --btn-bg: var(--paper);
  --btn-fg: var(--ink-900);
  display: inline-flex;
  align-items: center;
  gap: .7em;
  padding: 1.05em 1.6em;
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-family: var(--f-mono);
  font-size: var(--t-label);
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  border: 0;
  border-radius: var(--layer-r);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition: transform .35s var(--ease), color .35s var(--ease);
}
/* O preenchimento sobe como uma camada sendo depositada. */
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--l-magenta);
  transform: translateY(101%);
  transition: transform .45s var(--ease);
}
.btn:hover { color: #fff; transform: translateY(-2px); }
.btn:hover::before { transform: translateY(0); }
.btn:active { transform: translateY(0); }

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--paper);
  box-shadow: inset 0 0 0 1px var(--line-2);
}
.btn--ghost::before { background: var(--paper); }
.btn--ghost:hover { color: var(--ink-900); }

/* --- O motivo: barras de camada ------------------------------ */
/* Cada seção abre com uma pilha de barras, como o logotipo. */
.layers {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 74px;
  flex: none;
}
.layers i {
  display: block;
  height: var(--layer-h);
  border-radius: var(--layer-r);
  background: var(--line);
  transform-origin: left center;
  transform: scaleX(var(--w, 1));
  transition: transform .7s var(--ease), background .5s var(--ease);
}
.layers i:nth-child(1) { --w: .42; }
.layers i:nth-child(2) { --w: .70; }
.layers i:nth-child(3) { --w: 1; }
.layers i:nth-child(4) { --w: .82; }
.layers i:nth-child(5) { --w: .52; }

/* --- Régua divisória ----------------------------------------- */
.rule {
  height: 1px;
  background: var(--line);
  border: 0;
  margin: 0;
}

/* --- Revelação por scroll ------------------------------------ */
.rev {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .85s var(--ease), transform .85s var(--ease);
  transition-delay: var(--d, 0ms);
}
.rev.is-in { opacity: 1; transform: none; }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* Pula para o conteúdo */
.skip {
  position: absolute;
  left: 1rem; top: -100px;
  z-index: 999;
  background: var(--l-lime);
  color: var(--ink-900);
  padding: .8rem 1.2rem;
  font-family: var(--f-mono);
  font-size: var(--t-label);
  text-transform: uppercase;
  letter-spacing: .1em;
  border-radius: var(--layer-r);
  transition: top .25s var(--ease);
}
.skip:focus { top: 1rem; }