:root {
  --papel: #F9F8F1;
  --folha: #FFFFFF;
  --tinta: #1C1E15;
  --suave: #6B6F5B;
  --linha: #DCDDD2;
  --azul: #1C1E15;          /* destaques de interface na cor da tinta */
  --neon: #DFFF32;
  --neon-claro: #F2FFC7;
  --neon-escuro: #5C6E00;   /* verde legível sobre o papel (rótulos pequenos) */
  --marca-texto: #DFFF32;
  --caneta: #C2412D;
  --verde: #4A5A00;
  --verde-fundo: #F2FFC7;

  --serifa: "Fraunces", Georgia, "Times New Roman", serif;
  --sans: "Hanken Grotesk", -apple-system, "Segoe UI", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Menlo, monospace;
  --abnt: "Times New Roman", Times, serif;

  --largura: 1180px;
  --gutter: clamp(16px, 4vw, 40px);
  color-scheme: light;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--papel);
  color: var(--tinta);
  font: 17px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}
img { display: block; }
a { color: inherit; }
:focus-visible { outline: 3px solid var(--tinta); outline-offset: 3px; border-radius: 4px; box-shadow: 0 0 0 6px var(--neon); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.suave { color: var(--suave); }

h1, h2, h3 { font-family: var(--serifa); font-weight: 400; font-variation-settings: "SOFT" 50, "WONK" 0; letter-spacing: -0.015em; margin: 0; }
h1 em, h2 em { font-style: italic; font-variation-settings: "SOFT" 100, "WONK" 1; }
h1 { font-size: clamp(42px, 6.2vw, 78px); line-height: 1.02; letter-spacing: -0.025em; }
h2 { font-size: clamp(30px, 3.6vw, 46px); line-height: 1.1; }
h3 { font-size: 23px; line-height: 1.25; }

/* ---------- botões ---------- */
.botao {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 20px; border-radius: 999px; border: 1.5px solid var(--tinta);
  background: var(--tinta); color: var(--papel); font: 600 15px/1 var(--sans);
  text-decoration: none; cursor: pointer; transition: transform .15s ease, background .15s ease;
}
.botao:hover { transform: translateY(-1px); }
.botao:active { transform: translateY(0); }
.botao-grande { padding: 16px 28px; font-size: 17px; }
.botao-contorno { background: transparent; color: var(--tinta); }
.botao-contorno:hover { background: var(--folha); }
.link-discreto { font-weight: 500; text-decoration: none; padding: 8px 6px; }
.link-discreto:hover { text-decoration: underline; text-underline-offset: 4px; }

/* ---------- topo ---------- */
.topo {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px var(--gutter);
  background: color-mix(in srgb, var(--papel) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
}
.marca { display: flex; align-items: center; gap: 10px; text-decoration: none; font: 600 19px var(--serifa); }
.marca img { border-radius: 7px; }
.topo-acoes { display: flex; align-items: center; gap: 14px; }

/* ---------- hero ---------- */
.hero {
  max-width: var(--largura); margin: 0 auto;
  padding: clamp(32px, 6vw, 72px) var(--gutter) clamp(48px, 7vw, 96px);
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.selo {
  display: inline-flex; align-items: center; gap: 8px; margin: 0 0 22px;
  padding: 6px 14px; border: 1px solid var(--linha); border-radius: 999px; background: var(--folha);
  font-size: 14px; font-weight: 500;
}
.ponto { width: 8px; height: 8px; border-radius: 50%; background: #9BC400; box-shadow: 0 0 0 3px #dfff3266; }
.hero-sub { font-size: 19px; color: var(--suave); max-width: 34em; margin: 24px 0 30px; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-nota { font-size: 14px; color: var(--suave); margin: 18px 0 0; }

/* ---------- demo: a folha ---------- */
.demo { margin: 0; }
.janela {
  background: #E9E6DE; border: 1px solid var(--linha); border-radius: 14px; overflow: hidden;
  box-shadow: 0 30px 60px -30px #15171C40;
}
.janela-barra {
  display: flex; align-items: center; gap: 12px; padding: 10px 12px;
  background: var(--folha); border-bottom: 1px solid var(--linha);
}
.bolinhas { display: flex; gap: 6px; }
.bolinhas i { width: 10px; height: 10px; border-radius: 50%; background: #D9D5CB; }
.janela-titulo { font-size: 12.5px; color: var(--suave); flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.fita-botao {
  display: inline-flex; align-items: center; gap: 6px; flex-shrink: 0;
  font: 600 12.5px var(--sans); color: var(--tinta); background: var(--papel);
  border: 1px solid var(--linha); border-radius: 7px; padding: 6px 10px; cursor: pointer;
}
.fita-botao img { border-radius: 3px; }
.fita-botao[aria-pressed="true"] { background: var(--neon); border-color: #b9d61c; }
.mesa { padding: clamp(14px, 3vw, 28px); display: flex; justify-content: center; }

.folha {
  --u: calc(var(--fw) / 21);              /* 1 cm na escala da folha */
  --fw: min(100%, 440px);
  position: relative; width: var(--fw); aspect-ratio: 21 / 29.7;
  background: var(--folha); box-shadow: 0 1px 2px #0000001a, 0 12px 28px -14px #0000002e;
  container-type: inline-size; overflow: hidden;
}
.mancha {
  position: absolute; inset: 0;
  padding: 14.3cqw 9.5cqw 9.5cqw 14.3cqw;          /* 3 cm sup/esq, 2 cm dir/inf em 21 cm */
  font-family: var(--abnt); color: #111; font-size: 2.6cqw; line-height: 1.5;
}
.b { margin: 0; transition: all .45s cubic-bezier(.2,.7,.2,1); }

/* estado rascunho */
.num { position: absolute; top: 9.5cqw; right: 9.5cqw; font-size: 2.2cqw; opacity: 0; }
.t1 { font: 700 4cqw/1.2 Arial, Helvetica, sans-serif; color: #2b4f8a; text-align: center; margin: 0 0 1.5cqw -4cqw; }
.txt { font-family: Calibri, Carlito, Arial, sans-serif; font-size: 2.75cqw; line-height: 1.2; text-indent: 0; text-align: left; margin-bottom: 1cqw; }
.cit { font-family: Calibri, Carlito, Arial, sans-serif; font-size: 2.75cqw; line-height: 1.2; text-align: left; margin-bottom: 2cqw; }
.t2 { font: italic 3cqw/1.3 Georgia, serif; margin: 2cqw 0 1cqw 3cqw; }
.fig { height: 17cqw; margin: 2.5cqw 0 1cqw; display: flex; justify-content: center; }
.fig span { width: 44%; border: 1.5px solid #9aa3b5; border-radius: 3px;
  background: repeating-linear-gradient(135deg, #eef1f6 0 6px, #e3e8f0 6px 12px); }
.leg { font-family: Arial, sans-serif; font-size: 2.3cqw; font-style: italic; text-align: left; margin-left: 6cqw; }
.fonte { font-family: Arial, sans-serif; font-size: 2.1cqw; text-align: left; margin-left: 6cqw; color: #555; }

.caneta {
  position: absolute; font: italic 600 3.3cqw/1 "Comic Sans MS", "Bradley Hand", cursive; color: var(--caneta);
  transform: rotate(-6deg); transition: opacity .3s ease;
}
.c1 { top: 22cqw; right: 3cqw; }
.c2 { top: 60cqw; right: 2cqw; transform: rotate(5deg); }

/* estado formatado (ABNT) */
.folha.ok .num { opacity: 1; }
.b.ok.t1 { font: 700 2.7cqw/1.5 var(--abnt); color: #111; text-transform: uppercase; text-align: left; margin: 0 0 3cqw 0; }
.b.ok.txt { font-family: var(--abnt); font-size: 2.6cqw; line-height: 1.5; text-indent: 5.95cqw; text-align: justify; margin-bottom: 0; }
.b.ok.cit { font-family: var(--abnt); font-size: 2.15cqw; line-height: 1.15; text-align: justify; margin: 3cqw 0 3cqw 19cqw; }
.b.ok.t2 { font: 400 2.6cqw/1.5 var(--abnt); text-transform: uppercase; margin: 3cqw 0 1.5cqw 0; }
.b.ok.leg { font: 400 2.15cqw var(--abnt); text-align: center; margin-left: 0; }
.b.ok.fonte { font: 400 2.15cqw var(--abnt); text-align: center; margin-left: 0; color: #111; }
.b.ok.fig { margin-top: 1.5cqw; }
.folha.ok .caneta { opacity: 0; }

.scanner {
  position: absolute; left: 0; right: 0; top: 0; height: 2px; z-index: 3;
  background: var(--marca-texto); box-shadow: 0 0 0 1px #b9d61c88, 0 0 26px 8px #dfff3299;
  opacity: 0; pointer-events: none;
}
.scanner.rodando { opacity: 1; }

.margens { position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity .5s ease .2s; z-index: 2; }
.folha.ok .margens { opacity: 1; }
.margens::before {
  content: ""; position: absolute; top: 14.3cqw; left: 14.3cqw; right: 9.5cqw; bottom: 9.5cqw;
  border: 1px dashed #1c1e1566;
}
.m { position: absolute; font: 600 1.9cqw var(--mono); color: var(--tinta); background: var(--neon); padding: .2cqw 1cqw; border-radius: .6cqw; }
.m-sup { top: 6cqw; left: 50%; transform: translateX(-50%); }
.m-inf { bottom: 3.2cqw; left: 50%; transform: translateX(-50%); }
.m-esq { left: 1cqw; top: 50%; transform: translateY(-50%) rotate(-90deg); }
.m-dir { right: 0; top: 50%; transform: translateY(-50%) rotate(90deg); }

.demo-legenda {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  margin-top: 14px; font-size: 14px; color: var(--suave);
}
.demo-selo {
  font-weight: 600; color: var(--verde); background: var(--verde-fundo); border-radius: 999px; padding: 4px 12px;
  opacity: 0; transform: translateY(4px); transition: all .35s ease;
}
.demo-selo.visivel { opacity: 1; transform: none; }

/* ---------- instituições ---------- */
.instituicoes {
  max-width: var(--largura); margin: 0 auto; padding: 0 var(--gutter) clamp(56px, 8vw, 96px); text-align: center;
}
.instituicoes h2 { font: 500 15px var(--sans); color: var(--suave); letter-spacing: 0; margin-bottom: 18px; }
.instituicoes ul {
  list-style: none; padding: 0; margin: 0 auto; display: flex; flex-wrap: wrap; justify-content: center;
  gap: 10px 34px; max-width: 900px;
}
.instituicoes li { font: 500 clamp(22px, 2.6vw, 30px)/1.2 var(--serifa); color: #3c4048; }
.instituicoes p { font-size: 14px; color: var(--suave); margin: 18px 0 0; }

/* ---------- seção escura ---------- */
.escuro { background: var(--tinta); color: #ECE9E1; padding: clamp(72px, 10vw, 128px) var(--gutter); }
.estreito { max-width: 900px; margin: 0 auto; }
.frase { font-size: clamp(32px, 4.4vw, 56px); line-height: 1.08; color: #fff; }
.dores { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-top: 40px; color: #C9C6BE; font-size: 18px; }
.dores p { margin: 0; }

/* ---------- como funciona ---------- */
.como { max-width: var(--largura); margin: 0 auto; padding: clamp(72px, 10vw, 120px) var(--gutter); }
.como h2 { max-width: 16em; margin-bottom: 44px; }
.passos { list-style: none; counter-reset: passo; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.passos li { counter-increment: passo; border-top: 2px solid var(--tinta); padding-top: 18px; }
.passos li::before { content: counter(passo); display: inline-grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; background: var(--neon); font: 500 24px/1 var(--serifa); color: var(--tinta); margin-bottom: 16px; }
.passos p { color: var(--suave); margin: 10px 0 18px; }
.mini {
  display: flex; flex-direction: column; gap: 8px; padding: 14px; border: 1px solid var(--linha);
  border-radius: 10px; background: var(--folha); font-size: 14px;
}
.mini-linha.forte { font-weight: 600; }
.mini-linha.suave { color: var(--suave); }
.mini-ok { align-self: flex-start; font-weight: 600; color: var(--verde); background: var(--verde-fundo); border-radius: 6px; padding: 3px 8px; }
.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chips b, .chips i { font-style: normal; font-weight: 500; font-size: 13px; padding: 4px 10px; border-radius: 999px; border: 1px solid var(--linha); }
.chips b { background: var(--tinta); color: var(--neon); border-color: var(--tinta); }

/* ---------- privacidade ---------- */
.privacidade {
  max-width: var(--largura); margin: 0 auto; padding: 0 var(--gutter) clamp(72px, 10vw, 120px);
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center;
}
.priv-texto p { color: var(--suave); font-size: 18px; max-width: 32em; }
.contador {
  justify-self: center; display: flex; align-items: center; gap: 18px;
  background: var(--folha); border: 1px solid var(--linha); border-radius: 16px; padding: 22px 28px;
}
.contador-num { font: 400 96px/1 var(--serifa); color: var(--tinta); background: var(--neon); border-radius: 14px; padding: 4px 22px 10px; }
.contador-rotulo { max-width: 11em; font-weight: 500; line-height: 1.35; }

/* ---------- lista ---------- */
.lista {
  max-width: var(--largura); margin: 0 auto; padding: clamp(64px, 9vw, 112px) var(--gutter);
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 80px); align-items: start;
  border-top: 1px solid var(--linha);
}
.lista-intro p { font-size: 18px; max-width: 26em; }
.formulario, .confirmacao, .convite-caixa, .instalar {
  background: var(--folha); border: 1px solid var(--linha); border-radius: 18px; padding: clamp(20px, 3vw, 32px);
}
.campo { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.campo label { font-weight: 600; font-size: 15px; }
input, select {
  font: inherit; font-size: 16px; color: var(--tinta); background: var(--papel);
  border: 1.5px solid var(--linha); border-radius: 10px; padding: 12px 14px; width: 100%;
}
input:focus, select:focus { outline: none; border-color: var(--tinta); box-shadow: 0 0 0 3px #dfff32aa; }
.dupla { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.aceite { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: var(--suave); margin: 4px 0 20px; }
.aceite input { width: 18px; height: 18px; margin-top: 2px; flex-shrink: 0; accent-color: var(--tinta); }
.formulario .botao { width: 100%; }
.form-erro { color: var(--caneta); font-size: 14px; font-weight: 500; margin: 12px 0 0; }
.confirmacao h3 { font-size: 30px; margin-bottom: 10px; }
.confirmacao:focus { outline: none; }

/* ---------- convite ---------- */
.convite { max-width: var(--largura); margin: 0 auto; padding: 0 var(--gutter) clamp(72px, 10vw, 120px); }
.convite-caixa { max-width: 620px; margin: 0 auto; text-align: center; background: var(--tinta); color: #ECE9E1; border-color: var(--tinta); }
.convite-caixa h2 { color: #fff; }
.convite-caixa p { color: #C9C6BE; }
.codigo-form { display: flex; gap: 10px; max-width: 460px; margin: 20px auto 0; }
.codigo-form input {
  font: 600 18px/1 ui-monospace, "SF Mono", Menlo, monospace; letter-spacing: .08em; text-align: center;
  text-transform: uppercase; background: #fff;
}
.codigo-form .botao { background: var(--neon); color: var(--tinta); border-color: var(--neon); white-space: nowrap; }
.convite-caixa .form-erro { color: #F2A99B; }
.convite-caixa.aceito { display: none; }

.instalar h2 { margin-bottom: 24px; }
.instalar:focus { outline: none; }
.instalar-grade { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-bottom: 20px; }
.instalar-col h3 { margin-bottom: 14px; }
.instalar-col ol { padding-left: 22px; margin: 16px 0 0; color: var(--suave); }
.instalar-col li { margin-bottom: 6px; }

/* ---------- perguntas ---------- */
.perguntas { max-width: 820px; margin: 0 auto; padding: 0 var(--gutter) clamp(72px, 10vw, 120px); }
.perguntas h2 { margin-bottom: 24px; }
details { border-top: 1px solid var(--linha); padding: 18px 0; }
details:last-of-type { border-bottom: 1px solid var(--linha); }
summary { cursor: pointer; font: 500 21px/1.35 var(--serifa); list-style: none; display: flex; justify-content: space-between; gap: 16px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; font-family: var(--sans); font-weight: 400; color: var(--suave); transition: transform .2s ease; }
details[open] summary::after { transform: rotate(45deg); }
details p { color: var(--suave); margin: 10px 0 0; max-width: 40em; }

/* ---------- rodapé ---------- */
.rodape {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  padding: 28px var(--gutter); border-top: 1px solid var(--linha); font-size: 14px; color: var(--suave);
}
.marca-rodape { font-size: 16px; color: var(--tinta); }

/* ---------- celular ---------- */
@media (max-width: 900px) {
  .hero, .lista, .privacidade { grid-template-columns: minmax(0, 1fr); }
  .passos, .dores, .instalar-grade { grid-template-columns: minmax(0, 1fr); }
  .contador { justify-self: start; }
}
@media (max-width: 520px) {
  .topo .link-discreto { display: none; }
  .dupla { grid-template-columns: 1fr; gap: 0; }
  .codigo-form { flex-direction: column; }
  .hero-ctas .botao { flex: 1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .b, .margens, .caneta, .demo-selo, .botao { transition: none; }
}


/* ---------- personalidade: marca-texto neon ---------- */
.grifo {
  background-image: linear-gradient(transparent 58%, var(--neon) 58%, var(--neon) 92%, transparent 92%);
  background-repeat: no-repeat; background-size: 0% 100%;
  -webkit-box-decoration-break: clone; box-decoration-break: clone; padding: 0 .06em;
}
.escuro .grifo { color: var(--tinta); background-image: linear-gradient(transparent 8%, var(--neon) 8%, var(--neon) 96%, transparent 96%);
  animation: none; background-size: 100% 100%; }
@keyframes grifar { to { background-size: 100% 100%; } }
.grifo.ativo { animation: grifar 1s cubic-bezier(.6,0,.2,1) .25s forwards; }
.sobrelinha { display: block; font: 500 14px/1 var(--mono); color: var(--neon-escuro); margin-bottom: 18px; letter-spacing: 0; }
.escuro .sobrelinha { color: var(--neon); }
.botao-neon { background: var(--neon); color: var(--tinta); border-color: var(--neon); }
.botao-neon:hover { background: #d3f51c; }
.selo { border-color: #c9e35a; background: var(--neon-claro); }
.escuro { background: var(--tinta); }
.instituicoes li { font-style: italic; font-variation-settings: "SOFT" 100, "WONK" 1; color: #4a4d3e; }
.janela { box-shadow: 0 40px 80px -40px #1c1e1559, 0 0 0 6px #dfff3226; }
@media (prefers-reduced-motion: reduce) { .grifo { animation: none; background-size: 100% 100%; } }