:root {
  --ink: #16181d;
  --muted: #6b7280;
  --line: #e5e7eb;
  --paper: #ffffff;
  --fundo: #f7f7f8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--fundo);
  color: var(--ink);
  font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

a { color: inherit; }

.topo {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.marca { font-weight: 600; font-size: 18px; text-decoration: none; }

.zap {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 14px;
  text-decoration: none;
}

/* Scroll-snap keeps the carousel moving with no script on the page. */
.carrossel {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  gap: 8px;
  background: var(--paper);
}

.carrossel .slide {
  position: relative;
  flex: 0 0 100%;
  scroll-snap-align: center;
}

.carrossel img {
  display: block;
  width: 100%;
  height: clamp(180px, 34vw, 420px);
  object-fit: cover;
}

.carrossel .chamada {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0;
  padding: 24px 20px 16px;
  color: #fff;
  font-size: clamp(16px, 2.4vw, 26px);
  font-weight: 600;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.65));
}

.conteudo { max-width: 1120px; margin: 0 auto; padding: 32px 20px 64px; }

h1 { font-size: clamp(22px, 3vw, 30px); margin: 0 0 6px; }

.linha { margin: 0 0 28px; color: var(--muted); }

.grade {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 20px;
}

.cartao {
  display: block;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px;
  text-decoration: none;
}

.cartao h2 { font-size: 15px; margin: 14px 0 8px; font-weight: 600; }

.foto, .sem-foto {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  border-radius: 10px;
  background: var(--fundo);
}

.sem-foto {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
  padding: 12px;
}

.preco { margin: 0; font-size: 20px; font-weight: 650; }

.parcela { margin: 4px 0 0; font-size: 13px; color: var(--muted); }

.produto .voltar { font-size: 14px; color: var(--muted); text-decoration: none; }

.detalhe {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-top: 20px;
}

@media (min-width: 760px) {
  .detalhe { grid-template-columns: 1fr 1fr; align-items: start; }
}

.foto-grande {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 16px;
}

.dados .descricao { color: var(--muted); }

.comprar {
  display: inline-flex;
  align-items: center;
  height: 48px;
  margin-top: 20px;
  padding: 0 28px;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  font-weight: 500;
  text-decoration: none;
}

.ficha { margin-top: 44px; }

.ficha h2 { font-size: 17px; }

.ficha dl {
  display: grid;
  gap: 0;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  margin: 0;
}

.ficha dl > div {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  padding: 12px 16px;
  border-top: 1px solid var(--line);
}

.ficha dl > div:first-child { border-top: 0; }

@media (min-width: 620px) {
  .ficha dl > div { grid-template-columns: 240px 1fr; gap: 16px; }
}

.ficha dt { color: var(--muted); font-size: 14px; }

.ficha dd { margin: 0; font-size: 14px; }

.manual { font-size: 14px; }

.vazio { color: var(--muted); }

.rodape {
  padding: 28px 20px 48px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

.rodape p { margin: 4px 0; }

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f3f4f6;
    --muted: #9ca3af;
    --line: #2a2d34;
    --paper: #16181d;
    --fundo: #0e0f12;
  }
  .comprar { background: #fff; color: #111; }
}