/* Vibe Gênio: linhas novas (Xadrez · Tabuleiro, Matemática · Ilustrada e Clean). Cartões de produto e cabeçalhos de linha. 22/10/2026 */

/* ---------- cabeçalho de linha ---------- */
.linha { position: relative; padding: var(--space-4xl) var(--gutter); background: var(--ink); isolation: isolate; }
.linha-escura-2 { background: var(--ink-2); }
.linha-papel { background: var(--ivory); color: var(--ink); }
.linha-papel::before {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: 0.55;
  background:
    linear-gradient(var(--paper-line) 1px, transparent 1px) 0 0 / 40px 40px,
    linear-gradient(90deg, var(--paper-line) 1px, transparent 1px) 0 0 / 40px 40px;
}
.linha-cab { max-width: var(--max); margin: 0 auto var(--space-2xl); display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: var(--space-xl); }
.linha-cab > div { display: grid; gap: var(--space-md); justify-items: start; }
.linha-cab .h2 { max-width: 16ch; }
.linha-cab > .alterna { display: inline-flex; align-items: center; gap: 2px; }  /* o seletor acima ('> div') empilhava o 'Ver' em coluna */
.linha-papel .eyebrow { color: oklch(0.45 0.1 70); }
.linha-papel .sub { color: var(--ink-dim); }
.linha-nota { max-width: var(--max); margin: var(--space-2xl) auto 0; font-size: 0.9375rem; color: var(--text-dim); max-width: 62ch; margin-left: max(0px, calc((100% - var(--max)) / 2)); }
.linha-papel .linha-nota { color: var(--ink-dim); }

/* atalhos entre as linhas da mesma coleção */
.atalhos { display: flex; flex-wrap: wrap; gap: var(--space-xs); margin-top: var(--space-md); }
.atalhos a { font: 500 0.8125rem/1 var(--sans); letter-spacing: 0.04em; text-decoration: none; padding: 0.65rem 0.95rem; border: 1px solid color-mix(in oklch, currentColor 30%, transparent); border-radius: 2px; transition: border-color 0.25s var(--ease-out), color 0.25s var(--ease-out), background-color 0.25s var(--ease-out); }
.atalhos a:hover { border-color: var(--brass); color: var(--brass); }
.linha-papel .alterna { border-color: var(--paper-line-2); }
.linha-papel .alterna-rotulo { color: var(--ink-dim); }
.linha-papel .alterna button { color: var(--ink-dim); }
.linha-papel .alterna button:hover { color: var(--ink); }
.linha-papel .alterna button[aria-pressed="true"] { background: var(--ink); color: var(--ivory); }

/* ---------- grade de cartões ---------- */
.grade { max-width: var(--max); margin-inline: auto; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--space-xl) var(--space-lg); }
.grade-clean, .grade-papxadrez, .grade-papmat { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card { display: grid; grid-template-rows: auto 1fr; background: var(--ink-2); border: 1px solid var(--ink-3); }
.linha-escura-2 .card { background: var(--ink); }
.card-fig { position: relative; aspect-ratio: 4 / 5; background: #1d1b19; overflow: hidden; border-bottom: 1px solid var(--ink-3); }
.card-fig img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; transition: opacity 0.45s var(--ease-out), transform 0.9s var(--ease); }
.card:hover .card-fig img { transform: scale(1.025); }
.c-tee { opacity: 0; padding: 0; -webkit-mask-image: radial-gradient(ellipse 62% 64% at 50% 50%, #000 70%, transparent 100%); mask-image: radial-gradient(ellipse 62% 64% at 50% 50%, #000 70%, transparent 100%); }
.c-modelo { opacity: 0; object-fit: cover !important; }
/* Vista dos cartões (data-grade-view no body): "modelo" (padrão: pessoa vestindo a peça), "camiseta" (peça sozinha) ou "estampa" (arte de impressão).
   Sem a imagem da vista pedida, o cartão mostra a estampa. */
body[data-grade-view="camiseta"] .card-fig .c-estampa { opacity: 0; }
body[data-grade-view="camiseta"] .card-fig .c-tee { opacity: 1; }
body[data-grade-view="camiseta"] .card-fig:not(.tem-tee) .c-estampa { opacity: 1; }
body[data-grade-view="modelo"] .card-fig .c-estampa { opacity: 0; }
body[data-grade-view="modelo"] .card-fig.tem-modelo .c-modelo { opacity: 1; }
body[data-grade-view="modelo"] .card-fig:not(.tem-modelo) .c-estampa { opacity: 1; }
body[data-grade-view="modelo"] .card-fig.tem-modelo:hover .c-modelo { transform: none; }
.card-selo { position: absolute; z-index: 2; top: 0.7rem; left: 0.7rem; font: 500 0.6875rem/1 var(--sans); letter-spacing: 0.14em; text-transform: uppercase; padding: 0.45rem 0.6rem; color: var(--brass); background: color-mix(in oklch, var(--ink) 82%, transparent); border: 1px solid color-mix(in oklch, var(--brass) 55%, transparent); }
.card-corpo { padding: var(--space-md) var(--space-md) var(--space-lg); display: grid; align-content: start; gap: var(--space-xs); }
.card-tipo { font: 500 0.6875rem/1 var(--sans); letter-spacing: 0.18em; text-transform: uppercase; color: var(--brass); }
.card-nome { font: 700 clamp(1.25rem, 1.7vw, 1.55rem)/1.15 var(--serif); letter-spacing: -0.005em; text-wrap: balance; }
.card-detalhe { margin-top: var(--space-2xs); font-size: 0.9375rem; color: var(--text); }
.card-detalhe.lances { font-size: 0.875rem; letter-spacing: 0.06em; }
.card-formula { font-family: var(--sans); font-weight: 500; letter-spacing: -0.005em; }
.card-formula sup { font-size: 0.65em; line-height: 0; position: relative; top: -0.2em; }
.card-desc { font-size: 0.875rem; line-height: 1.55; color: var(--text-dim); max-width: 34ch; }
.card-preco { margin: var(--space-xs) 0 var(--space-sm); }
.card-preco strong { font-weight: 500; font-size: 1.0625rem; }
.card .btn { justify-self: start; }
.card-acoes { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-xs); }
.btn-corpo { background: transparent; cursor: pointer; font-family: inherit; }
.btn-corpo .play { width: 0.8rem; height: 0.8rem; fill: currentColor; flex: none; margin-left: 0.15rem; }
.linha-papel .btn-ghost, .matematica .btn-ghost { color: var(--ink); border-color: var(--paper-line-2); }
.linha-papel .btn-ghost:hover, .matematica .btn-ghost:hover { border-color: var(--ink); color: var(--ink); background: color-mix(in oklch, var(--ink) 6%, transparent); }

/* ---------- "Ver no corpo": diálogo com o vídeo da camiseta ---------- */
.corpo-dialog { padding: 0; margin: auto; width: min(860px, 94vw); max-height: 94svh; color: var(--text); background: var(--ink); border: 1px solid var(--ink-3); overflow: auto; }
.corpo-dialog::backdrop { background: rgba(8, 7, 6, 0.86); }
.corpo-caixa { position: relative; display: grid; grid-template-columns: minmax(0, 340px) minmax(0, 1fr); gap: clamp(1.25rem, 3vw, 2.5rem); align-items: center; padding: clamp(1rem, 2.5vw, 2rem); }
.corpo-video { max-width: 340px; max-height: 80svh; margin: 0; }
.corpo-info { display: grid; gap: var(--space-sm); justify-items: start; }
.corpo-info .btn { margin-top: var(--space-xs); }
.corpo-fechar { position: absolute; top: 0.6rem; right: 0.6rem; z-index: 2; display: grid; place-items: center; width: 2.75rem; height: 2.75rem; background: color-mix(in oklch, var(--ink) 80%, transparent); color: var(--text); border: 1px solid var(--ink-3); border-radius: 2px; cursor: pointer; }
.corpo-fechar:hover { border-color: var(--brass); color: var(--brass); }
.corpo-fechar svg { width: 1rem; height: 1rem; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; }
@media (max-width: 700px) {
  .corpo-caixa { grid-template-columns: 1fr; padding-top: 3.5rem; }
  .corpo-video { max-width: min(300px, 70vw); max-height: 62svh; margin-inline: auto; }
  .corpo-info { justify-items: center; text-align: center; }
}

/* versão papel (Clean) */
.linha-papel .card { background: #fbfaf6; border-color: var(--paper-line-2); }
.linha-papel .card-fig { background: var(--ivory-2); border-bottom-color: var(--paper-line-2); }
.linha-papel .card-tipo { color: oklch(0.45 0.1 70); }
.linha-papel .card-detalhe { color: var(--ink); }
.linha-papel .card-desc { color: var(--ink-dim); }
.linha-papel .card-preco strong { color: var(--ink); }
.linha-papel .btn-primary { background: var(--ink); color: var(--ivory); }
.linha-papel .btn-primary:hover { background: var(--ink-3); }
.linha-papel .card-selo { color: var(--ink); background: color-mix(in oklch, var(--ivory) 88%, transparent); border-color: var(--ink-dim); }

/* ---------- seção clássica (as três primeiras peças de Matemática) ---------- */
.matematica .selo-linha { margin-top: var(--space-xs); }
.matematica .card-selo { position: static; display: inline-block; color: var(--ink); background: transparent; border-color: var(--ink-dim); }

@media (max-width: 1100px) {
  .grade { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grade-clean, .grade-papxadrez, .grade-papmat { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  .linha { padding-block: var(--space-3xl); }
  .grade, .grade-clean, .grade-papxadrez, .grade-papmat { grid-template-columns: minmax(0, 1fr); max-width: 440px; }
  .linha-cab .h2 { max-width: none; }
}
@media (prefers-reduced-motion: reduce) {
  .card-fig img { transition-duration: 0.001ms !important; }
}

/* ---------- vídeo de 10 s dos modelos (página Xadrez) ---------- */
.vv-grid { max-width: var(--max); margin-inline: auto; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 380px); gap: var(--space-2xl); align-items: center; }
.vv-video { width: 100%; aspect-ratio: 9 / 16; max-height: 78vh; object-fit: cover; background: #000; border: 1px solid var(--ink-3); justify-self: end; }
@media (max-width: 820px) {
  .vv-grid { grid-template-columns: minmax(0, 1fr); }
  .vv-video { justify-self: center; max-width: 340px; }
}

/* ---------- Problemas de xadrez (28/10/2026): filtro por tamanho do mate e solução sob demanda ---------- */
.filtro-mate { display: flex; width: fit-content; max-width: var(--max); margin: calc(var(--space-md) * -1) auto var(--space-xl) max(0px, calc((100% - var(--max)) / 2)); }
.solucao { margin-top: var(--space-xs); border-top: 1px solid var(--ink-3); padding-top: var(--space-xs); }
.solucao summary { cursor: pointer; list-style: none; font: 500 0.8125rem/1.2 var(--sans); letter-spacing: 0.08em; text-transform: uppercase; color: var(--brass); padding: 0.55rem 0; min-height: 2.5rem; display: flex; align-items: center; gap: 0.5rem; }
.solucao summary::-webkit-details-marker { display: none; }
.solucao summary::after { content: "+"; font-size: 1.1rem; line-height: 1; margin-left: auto; transition: transform 0.25s var(--ease-out); }
.solucao[open] summary::after { transform: rotate(45deg); }
.solucao summary:hover { color: var(--text); }
.solucao summary:focus-visible { outline: 2px solid var(--brass); outline-offset: 2px; }
.solucao-chave { font-size: 0.9375rem; color: var(--text); }
.solucao-chave strong { font-weight: 700; letter-spacing: 0.03em; }
.solucao-linha { margin-top: 0.15rem; font-size: 0.875rem; letter-spacing: 0.04em; color: var(--text-dim); }
.grade-problemas .card[hidden] { display: none; }
@media (max-width: 560px) {
  .filtro-mate { width: 100%; margin-inline: 0; }
}

/* Novidades: prévias aprovadas, com a camiseta inteira preservada. */
.novidades { scroll-margin-top: 5rem; }
.grade-novidades { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grade-novas_xadrez { grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 900px; }
.grade-nova_matematica { grid-template-columns: minmax(0, 1fr); max-width: 440px; }
.novidades .card-fig { aspect-ratio: 2 / 3; }
.novidades .card-selo { position: absolute; display: inline-block; z-index: 2; color: var(--text); background: var(--ink); border-color: var(--brass); }
.novidades .card-formula { overflow-wrap: anywhere; }
@media (max-width: 1100px) { .grade-novidades { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .grade-novidades, .grade-novas_xadrez { grid-template-columns: minmax(0, 1fr); } }