:root {
  --navy: #0e2f4a;
  --terra: #a85f34;
  --sand: #ad8562;
  --beige: #e3cfb2;
  --bg: #f8f5ef;
  --fg: #16283a;
  --muted: #5a6774;
  --card: #fffdf9;
  --line: #dcd4c6;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: var(--navy); }

.topo { background: #ffffff; color: var(--navy); border-bottom: 1px solid var(--line); }
.topo-in {
  max-width: 1100px; margin: 0 auto; padding: 14px 16px;
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}
.topo img { height: 90px; width: auto; display: block; }
.menu { display: flex; gap: 6px 16px; flex-wrap: wrap; }
.menu a { color: var(--navy); text-decoration: none; font-size: 15px; opacity: 0.9; }
.menu a:hover, .menu a[aria-current="page"] { opacity: 1; text-decoration: underline; text-underline-offset: 4px; }

main, .faixa { max-width: 1100px; margin: 0 auto; padding: 0 16px; }
.faixa { padding-top: 56px; padding-bottom: 8px; }
.secao { padding: 40px 0; }

.heroi { padding: 56px 0 40px; display: grid; gap: 28px; grid-template-columns: 1fr; align-items: center; }
@media (min-width: 800px) { .heroi { grid-template-columns: 1.2fr 1fr; } }
h1 { font-size: clamp(1.8rem, 4.5vw, 2.6rem); line-height: 1.2; color: var(--navy); margin: 0 0 14px; font-weight: 700; }
h2 { font-size: 1.5rem; color: var(--navy); margin: 0 0 12px; }
h3 { font-size: 1.1rem; color: var(--navy); margin: 0 0 6px; }
p { margin: 0 0 14px; }
.lead { font-size: 1.12rem; color: var(--muted); }
.pequeno { font-size: 0.9rem; color: var(--muted); }

.botoes { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 22px; }
.botao {
  display: inline-block; background: var(--navy); color: #f2f4f6; text-decoration: none;
  padding: 13px 22px; border-radius: 10px; font-weight: 600; text-align: center; border: 1px solid var(--navy);
}
.botao:hover { background: #163f60; }
.botao.secundario { background: transparent; color: var(--navy); }
.botao.secundario:hover { background: #ede6da; }

.capa {
  background: var(--card); border: 1px solid var(--line); border-radius: 16px;
  padding: 28px; text-align: left;
}
.capa .tag { font-size: 13px; color: var(--terra); font-weight: 600; letter-spacing: .04em; text-transform: uppercase; }
.capa .preco { font-size: 1.8rem; font-weight: 700; color: var(--navy); margin: 10px 0 2px; }

.cards { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 700px) { .cards { grid-template-columns: repeat(3, 1fr); } }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 22px; }

.faixa-escura { background: var(--navy); color: #f2f4f6; }
.faixa-escura h2, .faixa-escura h3 { color: #fff; }
.faixa-escura .lead, .faixa-escura .pequeno { color: #d5dde5; }
.faixa-escura .botao { background: #f2f4f6; color: var(--navy); border-color: #f2f4f6; }

ul { padding-left: 20px; margin: 0 0 14px; }
li { margin: 6px 0; }

.rodape { background: #0a2236; color: #cdd6df; margin-top: 56px; }
.rodape-in { max-width: 1100px; margin: 0 auto; padding: 32px 16px; display: grid; gap: 18px; }
@media (min-width: 700px) { .rodape-in { grid-template-columns: 2fr 1fr 1fr; } }
.rodape a { color: #f2f4f6; }
.rodape p { margin: 0; font-size: 14px; }

/* Fundo com tons de papel e folhas de livro suaves */
body {
  background:
    radial-gradient(1000px 560px at 88% -12%, #efe3d0 0%, rgba(239,227,208,0) 62%),
    radial-gradient(860px 480px at -8% 112%, #e6d8c2 0%, rgba(230,216,194,0) 58%),
    var(--bg);
  background-attachment: fixed;
}

.paginas {
  position: relative;
  height: 150px;
  margin: 0 0 18px;
}
.paginas span {
  position: absolute;
  left: 50%;
  top: 8px;
  width: 118px;
  height: 140px;
  margin-left: -59px;
  border: 1px solid var(--line);
  border-radius: 4px 10px 10px 4px;
  background-color: var(--card);
  background-image: repeating-linear-gradient(to bottom, transparent 0 17px, rgba(14,47,74,.09) 17px 18px);
  background-position: 0 12px;
  box-shadow: 0 10px 20px rgba(14,47,74,.10);
  transform-origin: 50% 100%;
  animation: flutua 9s ease-in-out infinite;
}
.paginas span:nth-child(1) { transform: rotate(-14deg) translateX(-46px); background-color: #f3eadb; animation-delay: -2s; }
.paginas span:nth-child(2) { transform: rotate(-5deg) translateX(-14px); background-color: #fbf6ee; animation-delay: -4.5s; }
.paginas span:nth-child(3) { transform: rotate(7deg) translateX(20px); background-color: var(--card); animation-delay: -6.5s; border-top: 3px solid var(--terra); }
@keyframes flutua {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -6px; }
}
@media (prefers-reduced-motion: reduce) {
  .paginas span { animation: none; }
}

/* Destaque suave ao passar o mouse sobre os blocos */
.card, .capa {
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.card:hover, .capa:hover {
  transform: translateY(-4px);
  border-color: var(--sand);
  box-shadow: 0 14px 28px rgba(14,47,74,.12);
}
@media (prefers-reduced-motion: reduce) {
  .card, .capa, .card:hover, .capa:hover { transition: none; transform: none; }
}
@media (hover: none) {
  .card:hover, .capa:hover { transform: none; box-shadow: none; border-color: var(--line); }
}

/* Troca de cor do bloco ao passar o mouse */
.card, .capa {
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease, background-color .25s ease;
}
.card:hover, .capa:hover {
  background: #f3eadb;
  border-color: var(--terra);
}
.card:hover h3, .capa:hover h2 {
  color: var(--terra);
}
.card h3, .capa h2 {
  transition: color .25s ease;
}

/* Cabeçalho fixo no topo e logo 30% maior */
.topo {
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 4px 14px rgba(14,47,74,.06);
}
.topo img { height: 117px; }
@media (max-width: 640px) {
  .topo img { height: 96px; }
}

/* Rodapé: nome da marca maior e as linhas de baixo menores */
.rodape-in > div:first-child p { font-size: 12.5px; margin: 0 0 4px; }
.rodape-in > div:first-child p strong { font-size: 1.35rem; }