/* AirTake · base comum das páginas (tokens, tipografia, topo, botões, rodapé) */
:root {
  --pagina: #efede8;
  --papel: #f8f6f1;
  --tinta: #15130f;
  --tinta-2: #4a463e;
  --tinta-3: #7b766b;
  --fio: #15130f14;
  --fio-forte: #15130f26;
  --bronze: #9a6a35;
  --bronze-claro: #ebd5b1;
  --noite: #171511;
  --ok: #3f7a4a;
  --vidro: #ffffff26;
  --vidro-forte: #ffffff3d;
  --vidro-borda: #ffffff59;
  --vidro-blur: blur(22px) saturate(1.35);
  --serifa: "Newsreader", "Iowan Old Style", Georgia, serif;
  --sans: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --f-hero: clamp(46px, min(6vw, 10vh), 116px);
  --f-h2: clamp(34px, 3.7vw, 62px);
  --f-lead: clamp(16px, 1.16vw, 18.5px);
  --gutter: clamp(20px, 3.6vw, 56px);
  --largura: 1328px;
  --r-card: 28px;
  --r-pilula: 999px;
  --ease: cubic-bezier(.22, 1, .36, 1);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--pagina); color: var(--tinta); font-family: var(--sans); font-size: 16px; line-height: 1.55; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
img, video, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
.wrap { max-width: var(--largura); margin: 0 auto; padding: 0 var(--gutter); }
em.acento { font-style: italic; color: var(--bronze); }
.rotulo { font-family: var(--mono); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; }

/* marca */
.marca { display: inline-flex; align-items: center; gap: 9px; font-family: var(--serifa); font-size: 23px; letter-spacing: -0.015em; white-space: nowrap; }
.marca svg { width: 22px; height: 22px; flex: none; }
.marca em { font-style: italic; }

/* topo */
header.topo { position: absolute; inset: 0 0 auto 0; z-index: 30; }
.topo .wrap { display: flex; align-items: center; height: 88px; gap: 36px; }
.topo nav { display: flex; gap: 30px; font-size: 14.5px; }
.topo nav a { opacity: .85; transition: opacity .3s; }
.topo nav a:hover { opacity: 1; }
.topo .acoes { margin-left: auto; display: flex; gap: 8px; align-items: center; }
.topo.claro { color: #fff; }
.topo.escuro { position: relative; color: var(--tinta); border-bottom: 1px solid var(--fio); }

/* botões */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 9px; height: 50px; padding: 0 26px; border-radius: var(--r-pilula); font: 500 15px/1 var(--sans); border: 0; cursor: pointer; white-space: nowrap; transition: transform .45s var(--ease), background .3s, opacity .3s; }
.btn:hover { transform: translateY(-1px); }
.btn .seta { transition: transform .45s var(--ease); }
.btn:hover .seta { transform: translateX(3px); }
.btn-tinta { background: var(--tinta); color: #fff; }
.btn-branco { background: #fff; color: var(--tinta); }
.btn-vidro { background: var(--vidro-forte); color: #fff; border: 1px solid var(--vidro-borda); backdrop-filter: var(--vidro-blur); -webkit-backdrop-filter: var(--vidro-blur); }
.btn[disabled] { opacity: .35; cursor: not-allowed; transform: none; }
.link-seta { display: inline-flex; gap: 8px; align-items: center; font-weight: 500; border-bottom: 1px solid currentColor; padding-bottom: 3px; }

/* rodapé */
footer.rodape { padding: 72px 0 40px; font-size: 14px; color: var(--tinta-2); }
.rodape .grade { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 30px; }
.rodape h6 { margin: 0 0 12px; font-size: 13px; color: var(--tinta); font-weight: 600; }
.rodape ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.rodape .base { margin-top: 56px; padding-top: 22px; border-top: 1px solid var(--fio-forte); display: flex; justify-content: space-between; gap: 12px 24px; flex-wrap: wrap; font-size: 12.5px; color: var(--tinta-3); }

/* revelar ao rolar */
.rv { opacity: 0; transform: translateY(22px); transition: opacity 1s var(--ease), transform 1s var(--ease); }
.rv.on { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .rv { opacity: 1; transform: none; } html { scroll-behavior: auto; } }

@media (max-width: 900px) {
  .topo nav { display: none; }
  .rodape .grade { grid-template-columns: 1fr 1fr; }
  .rodape .grade > :first-child { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  .topo .wrap { height: 72px; gap: 12px; }
  .marca { font-size: 20px; }
  .btn { height: 48px; padding: 0 20px; }
}