:root {
  --fundo: #f6f1e9;
  --papel: #fffdf8;
  --tinta: #1f2a2e;
  --suave: #6b7478;
  --linha: #e4dccf;
  --x: #e2574c;
  --o: #2a7f8f;
  --destaque: #f6c56b;
  --sombra: 0 1px 0 rgba(31, 42, 46, .04), 0 12px 32px -14px rgba(31, 42, 46, .28);
}
@media (prefers-color-scheme: dark) {
  :root {
    --fundo: #14191b;
    --papel: #1c2326;
    --tinta: #eef2f2;
    --suave: #98a3a6;
    --linha: #2f393c;
    --x: #ff7a6e;
    --o: #5cc6d6;
    --destaque: #f6c56b;
    --sombra: 0 1px 0 rgba(0, 0, 0, .2), 0 12px 32px -14px rgba(0, 0, 0, .7);
  }
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  min-height: 100svh;
  background: var(--fundo);
  color: var(--tinta);
  font-family: ui-rounded, "SF Pro Rounded", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-tap-highlight-color: transparent;
}
.topo {
  max-width: 560px;
  margin: 0 auto;
  padding: calc(22px + env(safe-area-inset-top)) 16px 6px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: #234e52;
  display: grid;
  place-items: center;
  box-shadow: var(--sombra);
  flex-shrink: 0;
}
.topo h1 { font-size: 20px; letter-spacing: -.2px; }
.topo p { font-size: 13px; color: var(--suave); }
main {
  max-width: 560px;
  margin: 0 auto;
  padding: 10px 16px 8px;
}
.abas {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  padding: 5px;
  border-radius: 16px;
  background: var(--papel);
  border: 1px solid var(--linha);
  margin-bottom: 14px;
}
.abas button {
  border: 0;
  background: transparent;
  color: var(--suave);
  font: inherit;
  font-weight: 700;
  font-size: 15px;
  padding: 11px 8px;
  border-radius: 12px;
  cursor: pointer;
}
.abas button[aria-selected="true"] {
  background: var(--tinta);
  color: var(--fundo);
}
.cartao {
  background: var(--papel);
  border: 1px solid var(--linha);
  border-radius: 22px;
  padding: 16px;
  box-shadow: var(--sombra);
}
[hidden] { display: none !important; }
.opcoes { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.chip {
  border: 1px solid var(--linha);
  background: transparent;
  color: var(--tinta);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: 999px;
  cursor: pointer;
}
.chip[aria-pressed="true"] {
  background: var(--tinta);
  color: var(--fundo);
  border-color: var(--tinta);
}
.placar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 14px;
}
.placar div {
  border-radius: 14px;
  padding: 10px 6px;
  text-align: center;
  background: var(--fundo);
  border: 2px solid transparent;
}
.placar div.vez { border-color: var(--destaque); }
.placar span { display: block; font-size: 12px; color: var(--suave); font-weight: 600; }
.placar strong { font-size: 24px; font-variant-numeric: tabular-nums; }
.placar .px strong { color: var(--x); }
.placar .po strong { color: var(--o); }
.status {
  text-align: center;
  font-weight: 700;
  font-size: 16px;
  min-height: 24px;
  margin-bottom: 12px;
}
.tabuleiro {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  aspect-ratio: 1;
  max-width: 420px;
  margin: 0 auto;
}
.casa {
  border: 0;
  border-radius: 18px;
  background: var(--fundo);
  cursor: pointer;
  display: grid;
  place-items: center;
  font-size: clamp(28px, 9vw, 42px);
  font-weight: 800;
  transition: transform .12s, background .2s;
}
.casa:hover:not(:disabled) { background: color-mix(in srgb, var(--fundo) 80%, var(--destaque)); }
.casa:active:not(:disabled) { transform: scale(.96); }
.casa:disabled { cursor: default; }
.casa.x { color: var(--x); }
.casa.o { color: var(--o); }
.casa.ganha { box-shadow: inset 0 0 0 2px var(--destaque); }
.acoes { display: flex; gap: 10px; margin-top: 16px; }
.btn {
  flex: 1;
  border: 0;
  border-radius: 14px;
  padding: 12px 10px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  background: var(--tinta);
  color: var(--fundo);
}
.btn.sec {
  background: transparent;
  color: var(--tinta);
  border: 1px solid var(--linha);
}
.mem-topo {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 14px;
  font-weight: 700;
}
.mem-topo small { color: var(--suave); font-weight: 600; }
.grade {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.carta {
  aspect-ratio: 1;
  border: 0;
  border-radius: 16px;
  background: transparent;
  perspective: 700px;
  cursor: pointer;
  padding: 0;
}
.giro {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform .35s;
}
.carta.is-open .giro,
.carta.is-match .giro { transform: rotateY(180deg); }
.face {
  position: absolute;
  inset: 0;
  border-radius: 16px;
  display: grid;
  place-items: center;
  backface-visibility: hidden;
  box-shadow: var(--sombra);
}
.verso { background: #234e52; }
.verso::after {
  content: "?";
  color: #f6c56b;
  font-size: 22px;
  font-weight: 800;
}
.frente {
  background: var(--papel);
  border: 1px solid var(--linha);
  transform: rotateY(180deg);
  font-size: clamp(22px, 7vw, 34px);
}
.carta.is-match .frente { box-shadow: inset 0 0 0 2px var(--destaque); }
.rodape {
  max-width: 560px;
  margin: 0 auto;
  padding: 18px 16px calc(24px + env(safe-area-inset-bottom));
  text-align: center;
  color: var(--suave);
  font-size: 13px;
  line-height: 1.45;
}
.festa {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 20;
}
.festa i {
  position: absolute;
  top: -10px;
  width: 8px;
  height: 12px;
  border-radius: 2px;
  animation: fall 2.1s linear forwards;
}
@keyframes fall {
  to { transform: translateY(110vh) rotate(540deg); opacity: .2; }
}