/* Cores tiradas da capa e do miolo do livro */
:root {
  color-scheme: dark;
  --fundo: #101418;
  --superficie: #171d24;
  --superficie-2: #1e2731;
  --borda: #2a323b;
  --texto: #e8e6e1;
  --texto-suave: #c9cdd2;
  --muted: #9aa3ad;
  --ambar: #f5a524;
  --ambar-forte: #ffb84d;
  --ambar-escuro: #a15c00;

  --fonte-titulo: "Archivo Narrow", "Arial Narrow", sans-serif;
  --fonte-texto: "Archivo", system-ui, sans-serif;
  --fonte-codigo: "IBM Plex Mono", Consolas, "Courier New", monospace;

  --largura: 1180px;
  --raio: 16px;
  --sombra: 0 30px 60px -20px rgb(0 0 0 / 0.75);
  --largura-livro: clamp(200px, 28vw, 350px);
  --ponto-menu: 880px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 120px;
  scrollbar-width: thin;
  scrollbar-color: var(--ambar-escuro) #0b0f13;
}

body {
  margin: 0;
  overflow-x: clip;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgb(245 165 36 / 0.09), transparent 60%),
    var(--fundo);
  color: var(--texto);
  font-family: var(--fonte-texto);
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* Barra de rolagem na paleta (Chrome, Edge, Firefox usam scrollbar-color acima) */
::-webkit-scrollbar { width: 12px; height: 12px; }
::-webkit-scrollbar-track { background: #0b0f13; }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--ambar-forte), var(--ambar-escuro));
  border-radius: 999px;
  border: 3px solid #0b0f13;
}
::-webkit-scrollbar-thumb:hover { background: linear-gradient(180deg, #ffd27a, var(--ambar)); }
::-webkit-scrollbar-corner { background: #0b0f13; }

img { display: block; max-width: 100%; height: auto; }
a { color: var(--ambar); text-underline-offset: 3px; }
a:hover { color: var(--ambar-forte); }
::selection { background: rgb(245 165 36 / 0.35); color: #fff; }

:focus-visible {
  outline: 3px solid var(--ambar);
  outline-offset: 3px;
  border-radius: 6px;
}

.pular {
  position: absolute;
  left: 16px;
  top: -60px;
  background: var(--ambar);
  color: #101418;
  padding: 10px 16px;
  border-radius: 8px;
  font-weight: 700;
  z-index: 40;
}
.pular:focus { top: 16px; }

h1, h2, h3 { font-family: var(--fonte-titulo); line-height: 1.06; margin: 0; text-wrap: balance; }
p { margin: 0; }

.ponto {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ambar);
  box-shadow: 0 0 0 4px rgb(245 165 36 / 0.18);
}
.ponto.pulsando { animation: pulsar 2s ease-in-out infinite; }
@keyframes pulsar {
  0%, 100% { box-shadow: 0 0 0 0 rgb(245 165 36 / 0.5); }
  50% { box-shadow: 0 0 0 7px rgb(245 165 36 / 0); }
}

/* Faixa de aviso */
.faixa-aviso {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 9px 16px;
  font-family: var(--fonte-codigo);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--texto-suave);
  background: var(--superficie);
  border-bottom: 1px solid var(--borda);
  text-align: center;
}

/* Menu flutuante */
.topo {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: center;
  padding: 14px 16px;
  pointer-events: none;
}

.pilula {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 8px 22px;
  width: min(100%, 960px);
  padding: 8px 8px 8px 22px;
  background: rgb(23 29 36 / 0.78);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border: 1px solid rgb(245 165 36 / 0.18);
  border-radius: 999px;
  box-shadow: 0 12px 40px -12px rgb(0 0 0 / 0.6);
  transition: border-radius 0.35s ease;
}

.marca {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--texto);
  text-decoration: none;
  font-family: var(--fonte-titulo);
  font-weight: 700;
  font-size: 1.1rem;
  white-space: nowrap;
}
.marca:hover { color: var(--texto); }

.links {
  display: flex;
  gap: 4px;
  list-style: none;
  margin: 0 auto 0 0;
  padding: 0;
}
.links a {
  display: block;
  padding: 8px 14px;
  border-radius: 999px;
  color: var(--texto-suave);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s ease, background 0.2s ease;
}
.links a:hover { color: var(--texto); background: rgb(255 255 255 / 0.06); }
.links a.ativo { color: #101418; background: var(--ambar); }

.botao.pequeno { min-height: 42px; padding: 0 18px; font-size: 0.95rem; white-space: nowrap; }

/* Botão hambúrguer: três traços que viram um X */
.hamburguer {
  display: none;
  position: relative;
  width: 46px;
  height: 46px;
  flex-shrink: 0;
  margin-left: auto;
  padding: 0;
  border: 1px solid var(--borda);
  border-radius: 50%;
  background: var(--superficie);
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.hamburguer:hover { border-color: var(--ambar); }
.hamburguer span {
  position: absolute;
  left: 13px;
  right: 13px;
  height: 2px;
  border-radius: 2px;
  background: var(--texto);
  transition: transform 0.4s cubic-bezier(0.2, 0.7, 0.2, 1), opacity 0.25s ease, top 0.4s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.hamburguer span:nth-child(1) { top: 16px; }
.hamburguer span:nth-child(2) { top: 22px; background: var(--ambar); }
.hamburguer span:nth-child(3) { top: 28px; }

.hamburguer[aria-expanded="true"] span:nth-child(1) { top: 22px; transform: rotate(45deg); }
.hamburguer[aria-expanded="true"] span:nth-child(2) { opacity: 0; transform: scaleX(0.2); }
.hamburguer[aria-expanded="true"] span:nth-child(3) { top: 22px; transform: rotate(-45deg); }

/* Menu do celular: abre e fecha com altura animada */
.menu-mobile {
  display: none;
  width: 100%;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.5s cubic-bezier(0.2, 0.7, 0.2, 1), opacity 0.3s ease, padding 0.5s ease;
}
.menu-mobile ul { list-style: none; margin: 0; padding: 0; }
.menu-mobile li {
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.menu-mobile a:not(.botao) {
  display: block;
  padding: 14px 6px;
  border-top: 1px solid var(--borda);
  color: var(--texto);
  text-decoration: none;
  font-family: var(--fonte-titulo);
  font-size: 1.45rem;
  font-weight: 700;
}
.menu-mobile a:not(.botao):hover { color: var(--ambar); }
.menu-mobile .botao { width: 100%; margin-top: 14px; }

.pilula.aberta .menu-mobile { max-height: 520px; opacity: 1; padding: 6px 4px 12px; }
.pilula.aberta .menu-mobile li { opacity: 1; transform: none; }
.pilula.aberta .menu-mobile li:nth-child(1) { transition-delay: 0.08s; }
.pilula.aberta .menu-mobile li:nth-child(2) { transition-delay: 0.12s; }
.pilula.aberta .menu-mobile li:nth-child(3) { transition-delay: 0.16s; }
.pilula.aberta .menu-mobile li:nth-child(4) { transition-delay: 0.2s; }
.pilula.aberta .menu-mobile li:nth-child(5) { transition-delay: 0.24s; }

/* Botões */
.botao {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 50px;
  padding: 0 24px;
  border-radius: 999px;
  border: 1px solid var(--borda);
  color: var(--texto);
  text-decoration: none;
  font-weight: 700;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}
.botao:hover { border-color: var(--ambar); color: var(--texto); transform: translateY(-2px); }
.botao.primario {
  background: linear-gradient(180deg, var(--ambar-forte), var(--ambar));
  border-color: transparent;
  color: #101418;
  box-shadow: 0 10px 30px -10px rgb(245 165 36 / 0.6);
}
.botao.primario:hover { color: #101418; box-shadow: 0 14px 36px -10px rgb(245 165 36 / 0.75); }

/* Layout comum */
.heroi, .secao, .faixa-numeros, .rodape-colunas, .rodape-grande, .direitos {
  width: min(100% - 32px, var(--largura));
  margin-inline: auto;
}

.rotulo {
  font-family: var(--fonte-codigo);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ambar);
  margin-bottom: 14px;
}

main { scroll-margin-top: 120px; }
.secao { padding: clamp(64px, 10vw, 120px) 0 0; scroll-margin-top: 110px; }
.secao > h2 { font-size: clamp(2.2rem, 1.4rem + 3vw, 3.4rem); margin-bottom: 36px; }
.intro { color: var(--muted); max-width: 60ch; margin: -18px 0 36px; font-size: 1.05rem; }

/* Herói */
.heroi {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 4vw, 48px);
  align-items: center;
  padding: clamp(40px, 8vw, 90px) 0 clamp(40px, 6vw, 70px);
}
@media (min-width: 900px) {
  .heroi { grid-template-columns: 1.05fr 0.95fr; }
}

.selo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--fonte-codigo);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--texto-suave);
  border: 1px solid var(--borda);
  border-radius: 999px;
  padding: 7px 14px;
  margin-bottom: 26px;
  background: var(--superficie);
}

.heroi h1 {
  font-size: clamp(3.1rem, 1.6rem + 6vw, 6rem);
  font-weight: 700;
  letter-spacing: -0.01em;
}
.destaque {
  background: linear-gradient(120deg, var(--ambar-forte), var(--ambar) 60%, #e08a00);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.subtitulo {
  margin-top: 20px;
  font-family: var(--fonte-titulo);
  font-size: clamp(1.3rem, 1rem + 0.9vw, 1.7rem);
  color: var(--texto-suave);
}

.lead { margin-top: 16px; color: var(--muted); max-width: 46ch; }

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 26px 0 0;
}
.chips li {
  padding: 7px 13px;
  font-size: 0.88rem;
  color: var(--texto-suave);
  background: var(--superficie);
  border: 1px solid var(--borda);
  border-radius: 999px;
}

.botoes { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }

/* Livro 3D */
.cena {
  position: relative;
  display: grid;
  place-items: center;
  min-height: clamp(380px, 52vw, 560px);
  perspective: 1600px;
}

.livro {
  position: relative;
  width: var(--largura-livro);
  aspect-ratio: 454 / 652;
  transform-style: preserve-3d;
  transform: rotateY(-24deg) rotateX(4deg);
  transition: transform 0.9s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.cena:hover .livro { transform: rotateY(-14deg) rotateX(2deg); }

.capa {
  position: absolute;
  inset: 0;
  transform: translateZ(20px);
  border-radius: 3px 8px 8px 3px;
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgb(255 255 255 / 0.06);
  background: #0b0f13;
}
.capa img { width: 100%; height: 100%; object-fit: cover; }
.capa::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgb(255 255 255 / 0.16) 0%, transparent 38%, transparent 70%, rgb(0 0 0 / 0.18) 100%);
  pointer-events: none;
}

.lombada {
  position: absolute;
  top: 0;
  left: 0;
  width: 40px;
  height: 100%;
  transform-origin: left center;
  transform: translateZ(-20px) rotateY(-90deg);
  display: grid;
  place-items: center;
  background: linear-gradient(90deg, #07090c, #151b22 60%, #0b0f13);
  border-left: 1px solid rgb(245 165 36 / 0.35);
}
.lombada span {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-family: var(--fonte-codigo);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--ambar);
  white-space: nowrap;
}

.sombra {
  position: absolute;
  bottom: 2%;
  left: 50%;
  width: 78%;
  height: 40px;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, rgb(0 0 0 / 0.75), transparent);
  filter: blur(6px);
}

.cartao-flutuante {
  position: absolute;
  top: 8%;
  right: 0;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: rgb(23 29 36 / 0.85);
  border: 1px solid var(--borda);
  border-radius: 14px;
  box-shadow: var(--sombra);
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.3;
}
.cartao-flutuante small { color: var(--muted); font-family: var(--fonte-codigo); font-weight: 400; font-size: 0.78rem; }
.cartao-flutuante .ok {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: #98c379;
  color: #101418;
  font-weight: 800;
}

/* Números */
.faixa-numeros {
  border: 1px solid var(--borda);
  border-radius: var(--raio);
  background: var(--superficie);
  padding: 26px clamp(18px, 4vw, 40px);
  margin-top: 8px;
}
.faixa-numeros dl {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin: 0;
}
@media (min-width: 720px) {
  .faixa-numeros dl { grid-template-columns: repeat(4, 1fr); }
}
.faixa-numeros dt { font-size: 0.85rem; color: var(--muted); }
.faixa-numeros dd {
  margin: 4px 0 0;
  font-family: var(--fonte-titulo);
  font-size: clamp(1.9rem, 1.4rem + 1.6vw, 2.6rem);
  font-weight: 700;
  color: var(--ambar);
}

/* Cards */
.grade-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}
@media (min-width: 760px) {
  .grade-3 { grid-template-columns: repeat(3, 1fr); }
}

.cartao {
  position: relative;
  padding: 30px;
  background: linear-gradient(180deg, var(--superficie-2), var(--superficie));
  border: 1px solid var(--borda);
  border-radius: var(--raio);
  transition: border-color 0.25s ease, transform 0.25s ease;
}
.cartao:hover { border-color: var(--ambar-escuro); transform: translateY(-4px); }
.cartao h3 { font-size: 1.55rem; margin-bottom: 10px; }
.cartao p { color: var(--muted); }

.numero {
  display: inline-block;
  font-family: var(--fonte-codigo);
  font-size: 0.85rem;
  color: var(--ambar);
  margin-bottom: 16px;
}

/* Janela de código Java */
.janela-codigo {
  margin: 48px 0 0;
  background: #0b0f13;
  border: 1px solid var(--borda);
  border-radius: var(--raio);
  box-shadow: var(--sombra);
  overflow: hidden;
}
.janela-barra {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  background: var(--superficie);
  border-bottom: 1px solid var(--borda);
}
.bolinhas { display: inline-flex; gap: 7px; }
.bolinhas i { width: 11px; height: 11px; border-radius: 50%; background: #3b4550; }
.bolinhas i:nth-child(1) { background: #ff5f57; }
.bolinhas i:nth-child(2) { background: #febc2e; }
.bolinhas i:nth-child(3) { background: #28c840; }
.arquivo { font-family: var(--fonte-codigo); font-size: 0.85rem; color: var(--muted); }
.janela-codigo pre {
  margin: 0;
  padding: 22px 24px 16px;
  overflow-x: auto;
  font-family: var(--fonte-codigo);
  font-size: clamp(0.85rem, 0.8rem + 0.25vw, 0.97rem);
  line-height: 1.65;
}
.janela-codigo code.hljs { background: transparent; padding: 0; }
.saida {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 24px 18px;
  border-top: 1px solid var(--borda);
  font-family: var(--fonte-codigo);
  font-size: 0.9rem;
}
.saida .prompt { color: var(--muted); }
.saida .resultado { color: #98c379; }

/* Partes */
.partes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
@media (min-width: 760px) {
  .partes { grid-template-columns: repeat(2, 1fr); }
}

.partes li {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 20px 22px;
  background: var(--superficie);
  border: 1px solid var(--borda);
  border-radius: 14px;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.partes li:hover { border-color: var(--ambar-escuro); background: var(--superficie-2); }
.parte-num {
  flex-shrink: 0;
  font-family: var(--fonte-codigo);
  font-weight: 600;
  color: #101418;
  background: var(--ambar);
  border-radius: 8px;
  padding: 4px 8px;
  font-size: 0.85rem;
}
.partes h3 { font-size: 1.3rem; }
.partes p { color: var(--muted); font-size: 0.92rem; margin-top: 4px; }

/* Autor */
.autor {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
  padding: clamp(20px, 4vw, 40px) 0;
}
@media (min-width: 820px) {
  .autor { grid-template-columns: 0.8fr 1.2fr; }
}
.contracapa {
  margin: 0;
  max-width: 300px;
  justify-self: center;
  border-radius: 6px 12px 12px 6px;
  overflow: hidden;
  box-shadow: var(--sombra);
  transform: rotate(-3deg);
  transition: transform 0.5s ease;
}
.contracapa:hover { transform: rotate(0deg); }
.contracapa img { width: 100%; height: auto; }

.autor-texto h2 { font-size: clamp(2.2rem, 1.4rem + 2.6vw, 3.2rem); margin-bottom: 16px; }
.autor-texto p { color: var(--muted); margin-bottom: 24px; max-width: 56ch; }

/* Compra: chamada e formas de compra */
.chamada {
  padding: clamp(28px, 5vw, 56px);
  border-radius: 22px;
  background:
    radial-gradient(600px 300px at 100% 0%, rgb(245 165 36 / 0.22), transparent 70%),
    linear-gradient(180deg, var(--superficie-2), var(--superficie));
  border: 1px solid rgb(245 165 36 / 0.25);
}
.chamada h2 { font-size: clamp(2.2rem, 1.4rem + 2.6vw, 3.4rem); margin-bottom: 12px; }
.chamada p:not(.rotulo) { color: var(--muted); max-width: 52ch; }

.lojas {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 18px;
}
@media (min-width: 760px) {
  .lojas { grid-template-columns: repeat(2, 1fr); }
}
.loja {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px;
  background: var(--superficie);
  border: 1px solid var(--borda);
  border-radius: var(--raio);
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.loja:hover { border-color: var(--ambar-escuro); transform: translateY(-3px); }
.loja h3 { font-size: 1.45rem; }
.loja p { color: var(--muted); font-size: 0.95rem; flex-grow: 1; }
.loja .botao { align-self: flex-start; }
.em-breve {
  align-self: flex-start;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px dashed var(--borda);
  color: var(--muted);
  font-family: var(--fonte-codigo);
  font-size: 0.85rem;
}

/* Perguntas frequentes */
.faq { display: grid; gap: 10px; max-width: 860px; }
.faq details {
  background: var(--superficie);
  border: 1px solid var(--borda);
  border-radius: 14px;
  transition: border-color 0.2s ease;
}
.faq details[open] { border-color: var(--ambar-escuro); }
.faq summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 18px 56px 18px 22px;
  font-family: var(--fonte-titulo);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.3;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgb(245 165 36 / 0.14);
  color: var(--ambar);
  font-family: var(--fonte-codigo);
  font-size: 1.1rem;
  transition: transform 0.3s ease, background 0.3s ease;
}
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); background: var(--ambar); color: #101418; }
.faq details p {
  padding: 0 22px 20px;
  color: var(--muted);
  animation: abrir 0.35s ease;
}
.faq details p a { color: var(--ambar); }
@keyframes abrir {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}

/* Rodapé */
.rodape {
  margin-top: clamp(72px, 10vw, 120px);
  border-top: 1px solid var(--borda);
  background: #0b0f13;
  padding: clamp(40px, 6vw, 64px) 0 36px;
  overflow: hidden;
}
.rodape-grande {
  margin-bottom: 36px;
  font-family: var(--fonte-titulo);
  font-weight: 700;
  font-size: clamp(2.8rem, 1rem + 7.4vw, 8.5rem);
  line-height: 0.92;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: transparent;
  -webkit-text-stroke: 1px rgb(245 165 36 / 0.35);
  background: linear-gradient(180deg, rgb(245 165 36 / 0.25), transparent 85%);
  -webkit-background-clip: text;
  background-clip: text;
  user-select: none;
}
.rodape-colunas {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.rodape-colunas a {
  display: block;
  color: var(--texto-suave);
  text-decoration: none;
  padding: 3px 0;
}
.rodape-colunas a:hover { color: var(--ambar); }
.rodape-colunas .rotulo { margin-bottom: 12px; }
.direitos {
  margin-top: 44px;
  padding-top: 22px;
  border-top: 1px solid var(--borda);
  color: var(--muted);
  font-size: 0.88rem;
}

/* Entrada suave */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visivel { opacity: 1; transform: none; }
.faq details.reveal { transform: translateY(12px); }
.faq details.reveal.visivel { transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .reveal { opacity: 1; transform: none; }
}

/* Celular e telas menores: menu hambúrguer */
@media (max-width: 880px) {
  .links, .botao-topo { display: none; }
  .hamburguer { display: block; }
  .menu-mobile { display: block; }
  .pilula {
    flex-wrap: wrap;
    padding: 8px 8px 8px 20px;
    border-radius: 26px;
  }
  .pilula.aberta { border-radius: 24px; }
}

@media (max-width: 520px) {
  .topo { padding: 10px 10px; }
  .faixa-aviso { display: none; }
  .botoes .botao, .chamada .botao { flex: 1 1 100%; }
  .rodape-colunas { grid-template-columns: 1fr; }
  .cartao-flutuante { right: 2%; top: 2%; }
  .cena { min-height: 360px; }
  .faq summary { font-size: 1.1rem; }
}

/* Ficha técnica do livro */
.ficha {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
}
.ficha li {
  padding: 14px 16px;
  background: var(--superficie);
  border: 1px solid var(--borda);
  border-radius: 12px;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.4;
}
.ficha strong {
  display: block;
  font-family: var(--fonte-titulo);
  font-size: 1.7rem;
  color: var(--ambar);
  line-height: 1.1;
}
@media (max-width: 520px) {
  .ficha { grid-template-columns: 1fr; }
}

/* Preço, compra e compra direta */
.preco-linha {
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.95rem;
}
.preco-linha strong {
  font-family: var(--fonte-titulo);
  font-size: 1.5rem;
  color: var(--ambar);
  margin-right: 4px;
}

.chamada {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.chamada > div:first-child { flex: 1 1 380px; }

.preco-card {
  flex: 0 1 340px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 26px;
  background: rgb(11 15 19 / 0.75);
  border: 1px solid rgb(245 165 36 / 0.3);
  border-radius: 18px;
  text-align: center;
}
.preco-valor {
  font-family: var(--fonte-titulo);
  font-size: clamp(2.8rem, 2rem + 3vw, 3.8rem);
  font-weight: 700;
  line-height: 1;
  color: var(--ambar);
}
.preco-detalhe { color: var(--muted); font-size: 0.92rem; margin-bottom: 12px; }
.botao.grande { min-height: 56px; font-size: 1.05rem; width: 100%; }
.preco-selos { margin-top: 10px; color: var(--texto-suave); font-size: 0.85rem; }

.sub-compra { margin-top: 56px; font-size: clamp(1.6rem, 1.2rem + 1.4vw, 2.2rem); }
.sub-texto { margin: 8px 0 20px; color: var(--muted); max-width: 60ch; }

.lojas { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); margin-top: 0; }
.loja .botao { align-self: flex-start; }

@media (max-width: 520px) {
  .preco-card { flex-basis: 100%; }
  .sub-compra { margin-top: 40px; }
}

/* Rodapé com três colunas */
.rodape-colunas { grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }
.rodape-colunas a { overflow-wrap: anywhere; }

.preco-selos { text-wrap: balance; }