/* Estudo Claro — página de vendas no design system "Caderno Vivo" (papel, nanquim, marca-texto).
   Mobile primeiro; a partir de 900px o topo vira duas colunas. */
@font-face { font-family: "Inter"; src: url("fonts/Inter-latin.woff2") format("woff2"); font-weight: 400 900; font-display: swap; }
@font-face { font-family: "Kalam"; src: url("fonts/Kalam-700-latin.woff2") format("woff2"); font-weight: 700; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url("fonts/JetBrainsMono-latin.woff2") format("woff2"); font-weight: 400 700; font-display: swap; }

:root {
  --papel: #faf8f5; --pontos: #e4e2dd; --tinta: #18181b; --cinza: #57534e;
  --amarelo: #facc15; --vermelho: #ef4444; --verde: #10b981; --verde-escuro: #047857; --azul: #2563eb;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Inter", system-ui, sans-serif; color: var(--tinta); font-size: 17px; line-height: 1.5;
  background-color: var(--papel);
  background-image: radial-gradient(circle, var(--pontos) 1.2px, transparent 1.6px); background-size: 24px 24px;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
.mao { font-family: "Kalam", cursive; font-weight: 700; color: var(--azul); }
.mono { font-family: "JetBrains Mono", monospace; }
.marca { background: linear-gradient(transparent 55%, rgba(250, 204, 21, 0.9) 55%, rgba(250, 204, 21, 0.9) 92%, transparent 92%); padding: 0 4px; }
.conteiner { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 16px; }
section { padding: 56px 0; }
h1 { font-weight: 900; font-size: clamp(32px, 7.5vw, 54px); line-height: 1.05; letter-spacing: -1.5px; }
h2 { font-weight: 900; font-size: clamp(26px, 5.5vw, 38px); line-height: 1.1; letter-spacing: -1px; margin-bottom: 18px; }
h3 { font-weight: 800; font-size: 20px; line-height: 1.25; }
.rotulo { font-family: "JetBrains Mono", monospace; font-weight: 700; font-size: 13px; letter-spacing: 3px; text-transform: uppercase; margin-bottom: 12px; }
.rotulo::before { content: ""; display: inline-block; width: 32px; height: 4px; background: var(--azul); vertical-align: middle; margin-right: 12px; border-radius: 2px; }

/* barra do topo */
.barra-topo { background: var(--tinta); color: var(--papel); text-align: center; font-size: 13px; padding: 9px 16px; font-weight: 600; }

/* componentes (Soft Neobrutalism) */
.cartao { background: #fff; border: 2px solid var(--tinta); border-radius: 12px; box-shadow: 4px 4px 0 var(--tinta); padding: 20px; }
.selo { display: inline-block; font-family: "JetBrains Mono", monospace; font-weight: 700; font-size: 12px; letter-spacing: 1.5px;
  padding: 6px 12px; border: 2px solid var(--tinta); border-radius: 10px; background: var(--amarelo); box-shadow: 3px 3px 0 var(--tinta); }
.botao {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; text-decoration: none; text-align: center;
  font-weight: 800; font-size: 18px; color: #fff; background: var(--verde); padding: 16px 22px; border: 2px solid var(--tinta);
  border-radius: 12px; box-shadow: 4px 4px 0 var(--tinta); transition: transform 0.08s, box-shadow 0.08s; cursor: pointer; width: 100%;
}
.botao:active { transform: translate(2px, 2px); box-shadow: 2px 2px 0 var(--tinta); }
.botao.secundario { background: #fff; color: var(--tinta); }
.botao[aria-disabled="true"] { background: #d6d3cd; color: var(--cinza); cursor: not-allowed; }
.nota { font-size: 14px; color: var(--cinza); }

/* topo (hero) */
.hero { padding-top: 36px; }
.hero-grade { display: grid; gap: 32px; align-items: center; }
.hero-grade > *, .ofertas > *, .grade-3 > * { min-width: 0; }
.hero .sub { font-size: 18px; margin: 16px 0 20px; max-width: 560px; }
.selo-dados { display: inline-block; font-family: "JetBrains Mono", monospace; font-weight: 700; font-size: 13px; padding: 10px 14px;
  border: 2px solid var(--tinta); border-radius: 12px; background: #fff; box-shadow: 3px 3px 0 var(--tinta); margin-bottom: 22px; }
.hero .acoes { display: grid; gap: 12px; max-width: 420px; }

/* vitrine (carrossel com rolagem nativa) */
.vitrine { position: relative; }
.trilho { display: flex; gap: 16px; overflow-x: auto; scroll-snap-type: x mandatory; padding: 6px 4px 18px; scrollbar-width: none; }
.trilho::-webkit-scrollbar { display: none; }
.trilho figure { flex: 0 0 72%; max-width: 300px; scroll-snap-align: center; }
.trilho img { border: 2px solid var(--tinta); border-radius: 12px; box-shadow: 4px 4px 0 var(--tinta); aspect-ratio: 9 / 16; object-fit: cover; background: var(--papel); }
.trilho figcaption { font-size: 14px; margin-top: 10px; text-align: center; color: var(--cinza); }
.pontos { display: flex; justify-content: center; gap: 8px; }
.pontos button { width: 10px; height: 10px; border-radius: 50%; border: 2px solid var(--tinta); background: #fff; cursor: pointer; padding: 0; }
.pontos button[aria-current="true"] { background: var(--tinta); }

/* números da análise */
.numeros { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.numeros .cartao { padding: 16px; }
.numeros strong { display: block; font-weight: 900; font-size: 32px; letter-spacing: -1px; }
.numeros span { font-size: 14px; color: var(--cinza); }

/* quiz */
.abas { display: flex; gap: 10px; margin-bottom: 16px; flex-wrap: wrap; }
.abas button { font: 700 15px "Inter", sans-serif; padding: 10px 14px; border: 2px solid var(--tinta); border-radius: 10px; background: #fff; cursor: pointer; }
.abas button[aria-selected="true"] { background: var(--amarelo); box-shadow: 3px 3px 0 var(--tinta); }
.quiz .pergunta { font-weight: 800; font-size: 19px; margin-bottom: 14px; }
.opcoes { display: grid; gap: 10px; }
.opcoes button { text-align: left; font: 600 16px "Inter", sans-serif; padding: 14px; border: 2px solid var(--tinta); border-radius: 10px; background: #fff; cursor: pointer; }
.opcoes button.certa { background: #d1fae5; border-color: var(--verde-escuro); }
.opcoes button.errada { background: #fee2e2; border-color: var(--vermelho); }
.explicacao { margin-top: 14px; padding: 14px; border-left: 4px solid var(--azul); background: #eff6ff; border-radius: 6px; }
[hidden] { display: none !important; }

/* pilares, para quem é */
.grade-3 { display: grid; gap: 18px; }
.lista-check { list-style: none; display: grid; gap: 10px; }
.lista-check li { padding-left: 34px; position: relative; }
.lista-check li::before { content: "✓"; position: absolute; left: 0; top: -1px; width: 24px; height: 24px; border-radius: 50%;
  background: var(--verde); color: #fff; font-weight: 900; display: grid; place-items: center; font-size: 14px; }

/* ofertas */
.ofertas { display: grid; gap: 22px; align-items: stretch; }
.oferta { display: flex; flex-direction: column; gap: 14px; position: relative; }
.oferta.destaque { border-width: 3px; box-shadow: 6px 6px 0 var(--tinta); background: #fffbea; }
.oferta .etiqueta { position: absolute; top: -14px; right: 16px; }
.oferta .capa { width: 110px; border: 2px solid var(--tinta); border-radius: 8px; }
.oferta .cabeca { display: flex; gap: 14px; align-items: center; }
.preco { font-weight: 900; font-size: 40px; letter-spacing: -1px; line-height: 1; }
.preco small { font-size: 16px; font-weight: 700; letter-spacing: 0; }
.preco-antigo { text-decoration: line-through; color: var(--cinza); font-weight: 700; }
.oferta ul { list-style: none; display: grid; gap: 6px; font-size: 15px; }
.oferta ul li::before { content: "• "; color: var(--azul); font-weight: 900; }
.oferta .botao { margin-top: auto; }

/* perguntas frequentes */
.faq { display: grid; gap: 12px; max-width: 760px; }
.faq details { background: #fff; border: 2px solid var(--tinta); border-radius: 12px; padding: 16px 18px; }
.faq summary { font-weight: 800; cursor: pointer; list-style: none; }
.faq summary::after { content: "+"; float: right; font-weight: 900; }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin-top: 10px; }

/* rodapé */
footer { border-top: 2px solid var(--tinta); padding: 32px 0 48px; font-size: 14px; color: var(--cinza); }
footer .linhas { display: grid; gap: 8px; }

@media (min-width: 700px) {
  .numeros { grid-template-columns: repeat(4, 1fr); }
  .grade-3 { grid-template-columns: repeat(3, 1fr); }
  .ofertas { grid-template-columns: repeat(3, 1fr); }
  .trilho figure { flex-basis: 260px; }
}
@media (min-width: 900px) {
  section { padding: 72px 0; }
  .hero-grade { grid-template-columns: 1.1fr 0.9fr; }
  .botao { width: auto; }
  .hero .acoes { grid-template-columns: auto auto; max-width: none; justify-content: start; }
}
html, body { overflow-x: hidden; }