/* Apresentação (#/apresentacao, js/apresentacao.js) e hub de estudo (#/inicio, js/inicio.js). Tokens de cor em app.css.
   Fundo cinza-grafite; imagem de TC sempre sobre preto (o contraste do exame não depende do tema). */
.hero-acoes { display: flex; gap: 10px 14px; flex-wrap: wrap; align-items: center; }
.hero-acoes .btn { padding: 11px 20px; font-size: 14px; border-radius: 999px; }

/* ================= apresentação ================= */
/* a página passa por baixo do topo de vidro (desktop): o desfoque do topo aparece sobre a imagem */
#page-apresentacao { margin-top: -56px; height: calc(100% + 56px); }
.ap-rolagem { position: relative; height: 420vh; }
.ap-palco { position: sticky; top: 0; height: 100vh; min-height: 620px; overflow: hidden; padding: 56px max(clamp(16px, 5vw, 96px), calc((100% - 1680px) / 2)) 0;
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); align-items: center; gap: 24px;
  background: radial-gradient(ellipse 48% 75% at 74% 48%, #2e2e2e 0%, #1a1a1a 48%, #121212 100%); }
.ap-sobre { margin: 0 0 22px; color: var(--dim); font: 500 12px/1 var(--mono); letter-spacing: .02em; }
.ap-txt h1 { font-size: clamp(42px, 5.4vw, 104px); line-height: .98; letter-spacing: -.045em; font-weight: 650; margin: 0 0 26px; max-width: 11ch; }
.ap-lead { color: var(--muted); font-size: clamp(15px, 1.05vw, 18px); line-height: 1.55; max-width: 46ch; margin: 0 0 30px; }
.ap-prog { display: flex; align-items: center; gap: 12px; margin-top: 44px; color: var(--dim); font: 12px var(--mono); }
.ap-prog span { width: 160px; height: 1px; background: var(--line2); }
.ap-prog i { display: block; height: 100%; background: #fff; transform: scaleX(0); transform-origin: left; }

/* topograma grande, recortado em pé como um busto; o preto da imagem some no fundo (lighten) */
.ap-fig { position: relative; margin: 0 clamp(90px, 11vw, 220px) 0 0; justify-self: end; height: calc(100vh - 56px - 40px); aspect-ratio: 674 / 1288; }
.ap-scout { display: block; width: 100%; height: 100%; mix-blend-mode: lighten;
  -webkit-mask-image: linear-gradient(#000 82%, transparent); mask-image: linear-gradient(#000 82%, transparent); }
/* linha de nível: atravessa o topograma e termina numa etiqueta, como uma anotação */
.ap-linha { position: absolute; left: -10%; right: calc(-1 * clamp(80px, 10vw, 210px)); top: 0; height: 1px; background: rgba(255, 255, 255, .85); will-change: transform; }
.ap-linha::before { content: ''; position: absolute; left: -3px; top: -3px; width: 7px; height: 7px; border-radius: 50%; background: #fff; }
.ap-etq { position: absolute; right: 0; top: 8px; display: flex; flex-direction: column; align-items: flex-end; gap: 2px; white-space: nowrap; font-family: var(--mono); }
.ap-etq b { font: 600 13px var(--mono); color: #fff; }
.ap-etq span { font-size: 11px; color: var(--muted); font-variant-numeric: tabular-nums; }
/* cartão de vidro com o corte axial, sobre a borda esquerda do topograma */
.ap-cartao { position: absolute; right: 58%; bottom: 9%; width: min(380px, 25vw); padding: 12px; display: flex; flex-direction: column; gap: 12px; }
.ap-corte { display: block; flex: none; width: 100%; height: auto; min-height: 0; aspect-ratio: 337 / 253; background: #000; border-radius: 8px; }
.ap-regiao { display: flex; flex-direction: column; gap: 4px; padding: 0 4px; min-height: 86px; }
.ap-regiao b { font-size: 16px; font-weight: 600; letter-spacing: -.01em; }
.ap-regiao p { margin: 0; color: var(--muted); font-size: 12.5px; line-height: 1.5; }
.ap-cartao small { padding: 0 4px 2px; color: var(--dim); font: 11px var(--mono); }
.ap-rolagem.sem-cortes { height: auto; }
.ap-rolagem.sem-cortes .ap-palco { position: static; height: auto; min-height: 0; padding-block: 120px 60px; grid-template-columns: 1fr; }
.ap-rolagem.sem-cortes .ap-fig, .ap-rolagem.sem-cortes .ap-prog { display: none; }

/* recursos: três cartões de vidro sobre reconstruções 3D em tons de cinza */
.ap-mais { position: relative; overflow: hidden; padding: clamp(80px, 10vw, 160px) 0; background: #121212; }
.ap-fundo { position: absolute; inset: 0; display: grid; grid-template-columns: repeat(3, 1fr); opacity: .32; }
.ap-fundo span { background: #000 center/cover no-repeat; filter: grayscale(1) contrast(1.1); }
.ap-fundo::after { content: ''; position: absolute; inset: 0; background: linear-gradient(#121212, transparent 35%, transparent 65%, #121212), radial-gradient(ellipse 60% 80% at 50% 50%, transparent, #121212); }
.ap-mais-in { position: relative; max-width: 1680px; margin: 0 auto; padding: 0 clamp(16px, 5vw, 96px); }
.ap-mais h2 { font-size: clamp(28px, 3vw, 52px); line-height: 1.05; letter-spacing: -.035em; font-weight: 650; margin: 0 0 32px; max-width: 18ch; }
.ap-recursos { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-bottom: 36px; }
.ap-recurso { padding: 26px 26px 30px; }
.ap-recurso b { display: block; font-size: 18px; font-weight: 600; letter-spacing: -.015em; margin-bottom: 10px; }
.ap-recurso p { margin: 0; color: #c4c4c4; font-size: 14px; line-height: 1.55; }
#page-apresentacao .rodape { max-width: 1680px; margin-inline: auto; padding-inline: clamp(16px, 5vw, 96px); }

/* ================= início (hub) ================= */
.inicio-corpo { max-width: 1760px; margin: 0 auto; padding: 36px clamp(16px, 4vw, 64px) 0; }
.hub-topo { display: flex; justify-content: space-between; align-items: flex-end; gap: 20px; flex-wrap: wrap; margin-bottom: 26px; }
.hub-topo h1 { margin: 0 0 6px; font-size: clamp(28px, 2.6vw, 42px); letter-spacing: -.035em; font-weight: 650; }
.hub-topo p { margin: 0; }

.stats { list-style: none; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin: 0; padding: 0; }
.stats li { display: flex; flex-direction: column; gap: 4px; padding: 18px 20px; border-radius: 14px; background: var(--panel); border: 1px solid var(--line); }
.stats b { font-size: clamp(26px, 2.2vw, 36px); font-weight: 600; letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.stats span { color: var(--muted); font-size: 13px; }
.stat-barra { display: block; height: 3px; margin-top: 8px; border-radius: 3px; background: var(--line2); overflow: hidden; }
.stat-barra i { display: block; height: 100%; background: #fff; }

.hub-grade { display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, 420px); gap: 20px 56px; align-items: start; }
.hub-lateral { position: sticky; top: 16px; }
.hub-lateral .area-grid { grid-template-columns: 1fr; }

.bloco { margin-top: 40px; }
.bloco h2 { margin: 0 0 4px; font-size: 19px; font-weight: 600; letter-spacing: -.3px; }
.bloco > p.muted { margin: 0 0 16px; line-height: 1.5; max-width: 68ch; }

.mini-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 12px; }
.mini-case { display: flex; align-items: stretch; overflow: hidden; background: var(--panel); border: 1px solid var(--line);
  border-radius: 12px; color: var(--text); transition: border-color .15s ease, background-color .15s ease; }
.mini-case:hover, .mini-case:focus-visible { border-color: var(--line2); background: var(--panel2); }
.mini-thumb { flex: 0 0 132px; background: #000 center/cover no-repeat; filter: grayscale(1) contrast(1.05); transition: filter .35s ease; }
.mini-case:hover .mini-thumb, .mini-case:focus-visible .mini-thumb { filter: none; }
.mini-body { display: flex; flex-direction: column; justify-content: center; gap: 4px; padding: 14px 16px; min-width: 0; }
.mini-body b { font-size: 14.5px; font-weight: 600; line-height: 1.3; }
.mini-body small { color: var(--muted); font-size: 12px; }

/* áreas: lista de leitura (nome · nº de casos · descrição) */
.area-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(420px, 1fr)); column-gap: 32px; border-top: 1px solid var(--line); }
.area { display: grid; grid-template-columns: 1fr auto; gap: 2px 12px; padding: 12px 2px; border-bottom: 1px solid var(--line); color: var(--text); }
.area b { font-weight: 600; font-size: 14px; }
.area em { font-style: normal; color: var(--dim); font-size: 12px; font-variant-numeric: tabular-nums; }
.area small { grid-column: 1 / -1; color: var(--muted); font-size: 12.5px; line-height: 1.45; }
.area:hover b, .area:focus-visible b { text-decoration: underline; text-underline-offset: 4px; }

.passos { margin: 10px 0 0; padding-left: 20px; display: flex; flex-direction: column; gap: 8px; max-width: 72ch;
  color: var(--muted); font-size: 13.5px; line-height: 1.55; }
.passos li::marker { color: var(--dim); font-variant-numeric: tabular-nums; }
.passos b { color: var(--text); font-weight: 600; }

.nota { margin: 48px 0 0; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12.5px; line-height: 1.6; max-width: 80ch; }
.aviso-erro { padding: 16px; border-radius: 8px; border: 1px solid rgba(255, 92, 122, .45); background: rgba(255, 92, 122, .08); }

@media (max-width: 1180px) {
  .hub-grade { grid-template-columns: 1fr; }
  .hub-lateral { position: static; }
  .hub-lateral .area-grid { grid-template-columns: repeat(auto-fill, minmax(360px, 1fr)); }
  .ap-recursos { grid-template-columns: 1fr; max-width: 620px; }
}
/* até 900px quem rola é a janela (app.css): a apresentação não passa por baixo do topo e o sticky gruda nele */
@media (max-width: 900px) {
  #page-apresentacao { margin-top: 0; height: auto; }
  .ap-palco { top: var(--topo, 0px); height: calc(100svh - var(--topo, 0px)); min-height: 0; padding-top: 20px;
    grid-template-columns: 1fr; grid-template-rows: auto minmax(0, 1fr); align-items: start; gap: 12px; }
  .ap-sobre, .ap-lead, .ap-prog, .ap-regiao p { display: none; }
  .ap-txt h1 { font-size: 34px; max-width: none; margin-bottom: 14px; }
  .ap-fig { height: 100%; margin-right: 64px; }
  .ap-linha { right: -64px; }
  .ap-cartao { width: min(250px, 58vw); right: 52%; bottom: 12%; padding: 8px; gap: 8px; }
  .ap-regiao { min-height: 0; }
}
@media (max-width: 760px) {
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mini-thumb { flex-basis: 96px; }
  .area-grid, .hub-lateral .area-grid { grid-template-columns: 1fr; }
}

/* contraste AA: o cartão passa sobre o abdome e as mãos (claros) do topograma */
.ap-cartao { background: rgba(18, 18, 18, .82); }
.ap-cartao .ap-regiao p, .ap-cartao small { color: #c4c4c4; }