/* HUD específico do jogo */
.hud {
  display: flex;
  gap: 14px;
  align-items: center;
  justify-content: center;
  margin: 6px 0 16px;
  font-weight: 700;
}

.hud .pill {
  background: rgba(0, 0, 0, .05);
  border: 1px solid rgba(0, 0, 0, .1);
  padding: 6px 10px;
  border-radius: 999px;
}

/* Animação de pontuação */
.score-bump { animation: bump .35s ease; }
@keyframes bump {
  0% { transform: scale(1); }
  40% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

/* Board do jogo */
.board-wrap {
  display: flex;
  justify-content: center;
  overflow-x: hidden; /* evita overflow lateral no iOS */
}

.board {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr)); /* evita overflow por largura mínima */
  gap: 4px;
  background: var(--panel);
  padding: 4px;
  border-radius: 12px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, .15);
  user-select: none;
  touch-action: none;
  width: 100%;
  max-width: 560px;          /* largura máxima fixa para tabuleiro */
  box-sizing: border-box;    /* inclui padding no cálculo */
}

.cell {
  aspect-ratio: 1;
  font-size: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, .04);
  border-radius: 8px;
  cursor: pointer;
  transition: transform .1s, background .2s, box-shadow .2s, opacity .18s;
  will-change: transform, opacity;
  min-width: 0; /* impede quebra no grid por emojis largos */
}

.cell:hover {
  transform: scale(1.06);
  background: rgba(0, 0, 0, .08);
}

.cell.selected {
  outline: 2px solid var(--accent);
  box-shadow: 0 0 0 2px var(--accent) inset;
  background: rgba(34, 211, 238, .1);
}

.cell.flash { animation: flash .25s ease; }
@keyframes flash {
  0% { transform: scale(1); }
  50% { transform: scale(1.08); }
  100% { transform: scale(1); }
}

.cell.match { background: rgba(0, 0, 0, .12); }
.cell.vanish { opacity: 0; transform: scale(.85); }

/* Dica */
.hint {
  opacity: .75;
  font-size: 12px;
  text-align: center;
  margin-top: 10px;
}

/* Bloqueia cliques durante resolução */
.busy .cell { pointer-events: none; }

/* Dica visual no iOS: pulso visível e estável */
@keyframes hintPulse {
  0% {
    box-shadow: 0 0 0 0 var(--accent), 0 0 0 rgba(0,0,0,0);
    background: rgba(34, 211, 238, .10); /* ciano claro */
    transform: scale(1);
  }
  100% {
    box-shadow: 0 0 0 3px var(--accent), 0 0 12px rgba(34,211,238,.6);
    background: rgba(34, 211, 238, .18);
    transform: scale(1.04);
  }
}

/* Classe exclusiva da dica (não interfere na seleção do usuário) */
.cell.hinting {
  animation: hintPulse .85s ease-in-out infinite alternate;
  outline: none; /* evitamos depender do outline no iOS */
  will-change: transform, box-shadow, background;
  -webkit-transform: translateZ(0); /* ajuda no repaint do iOS */
}