/* ============================================================
   JOGO DA VELHA
   ============================================================ */

.arena-nav-link-home {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}

.velha-main {
  position: relative;
  z-index: 1;
  max-width: 540px;
  margin: 0 auto;
  padding: 28px 20px 40px;
}

.velha-cabecalho {
  text-align: center;
  margin-bottom: 18px;
}
.velha-titulo {
  font-family: "Poppins", sans-serif;
  font-weight: 800;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 18px 0 0;
  color: #ffffff;
}
.velha-titulo em {
  font-family: "Lora", serif;
  font-style: italic;
  font-weight: 500;
  background: linear-gradient(120deg, #38bdf8, #818cf8);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* CONTROLES */
.velha-controles {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 14px;
}
.velha-modo-grupo,
.velha-dificuldade-grupo {
  display: inline-flex;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 4px;
  gap: 4px;
}
.velha-modo-btn,
.velha-dif-btn {
  font-family: "Poppins", sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  color: #cbc4d9;
  background: transparent;
  border: 0;
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.velha-modo-btn:hover,
.velha-dif-btn:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.04);
}
.velha-modo-btn.ativa,
.velha-dif-btn.ativa {
  background: linear-gradient(120deg, #38bdf8, #818cf8);
  color: #0c0a18;
}

/* PLACAR */
.velha-placar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 12px;
  margin-bottom: 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 12px;
}
.velha-placar-jogador,
.velha-placar-empates {
  text-align: center;
  padding: 8px 12px;
  border-radius: 12px;
  transition: background 0.3s;
}
.velha-placar-jogador.atual {
  background: rgba(255, 255, 255, 0.05);
}
.velha-placar-marca {
  font-family: "Poppins", sans-serif;
  font-size: 1.8rem;
  font-weight: 800;
  line-height: 1;
}
.velha-x .velha-placar-marca { color: #38bdf8; }
.velha-o .velha-placar-marca { color: #fbbf24; }
.velha-placar-nome {
  font-size: 0.78rem;
  color: #aea7c0;
  margin-top: 4px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.velha-placar-rotulo {
  font-size: 0.72rem;
  color: #aea7c0;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.velha-placar-pontos {
  font-family: "Poppins", sans-serif;
  font-size: 1.6rem;
  font-weight: 800;
  color: #ffffff;
  margin-top: 2px;
}
.velha-placar-empates .velha-placar-pontos {
  font-size: 1.2rem;
  color: #cbc4d9;
}

/* ARENA E TABULEIRO */
.velha-arena {
  text-align: center;
}
.velha-status {
  font-family: "Poppins", sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  min-height: 1.4em;
  margin-bottom: 10px;
  transition: color 0.2s;
}
.velha-status.vitoria-x { color: #38bdf8; }
.velha-status.vitoria-o { color: #fbbf24; }
.velha-status.empate    { color: #cbc4d9; }

/* TABULEIRO 3D — perspective + bevel realista. Mobile-friendly */
.velha-tabuleiro {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 10px;
  width: min(320px, 88vw);
  aspect-ratio: 1 / 1;
  margin: 12px auto 22px;
  padding: 14px;
  box-sizing: border-box;
  background:
    linear-gradient(155deg, #1e293b 0%, #0f172a 100%);
  border-radius: 22px;
  /* Moldura 3D + sombra projetada */
  box-shadow:
    0 30px 60px rgba(0,0,0,0.6),
    0 12px 24px rgba(0,0,0,0.4),
    inset 0 2px 0 rgba(255,255,255,0.08),
    inset 0 -3px 8px rgba(0,0,0,0.6),
    inset 0 0 0 1px rgba(255,255,255,0.04);
  /* Inclinação 3D */
  transform: perspective(1200px) rotateX(8deg);
  transform-style: preserve-3d;
  transition: transform 0.4s ease;
}
.velha-tabuleiro:hover {
  transform: perspective(1200px) rotateX(4deg);
}

/* Cada célula responsiva */
.velha-celula {
  position: relative;
  background:
    linear-gradient(155deg, #0f172a 0%, #1e293b 50%, #334155 100%);
  border: 0;
  border-radius: 12px;
  font-family: "Poppins", sans-serif;
  font-size: clamp(2.4rem, 10vw, 4rem);
  font-weight: 800;
  color: transparent;
  cursor: pointer;
  transition: transform 0.18s, box-shadow 0.18s;
  display: flex; align-items: center; justify-content: center;
  /* Profundidade: célula afunda no tabuleiro */
  box-shadow:
    inset 0 4px 8px rgba(0,0,0,0.6),
    inset 0 -2px 4px rgba(255,255,255,0.04),
    inset 2px 0 4px rgba(0,0,0,0.4),
    inset -2px 0 4px rgba(0,0,0,0.4);
  text-shadow:
    0 2px 0 rgba(0,0,0,0.5),
    0 4px 8px rgba(0,0,0,0.6);
}
.velha-celula:not(.preenchida):hover {
  background:
    linear-gradient(155deg, #1e293b 0%, #334155 50%, #475569 100%);
  transform: translateZ(4px);
}
.velha-celula.preenchida { cursor: default; }
/* X e O 3D — letras grandes com profundidade */
.velha-celula.preenchida.x {
  color: #38bdf8;
  text-shadow:
    /* Camadas pra dar profundidade ao X */
    0 1px 0 #0c4a6e,
    0 2px 0 #0c4a6e,
    0 3px 0 #0c4a6e,
    0 4px 0 #0c4a6e,
    0 5px 0 #082f49,
    0 6px 0 #082f49,
    0 8px 12px rgba(0,0,0,0.6),
    0 0 20px rgba(56, 189, 248, 0.5);
}
.velha-celula.preenchida.o {
  color: #fbbf24;
  text-shadow:
    0 1px 0 #92400e,
    0 2px 0 #92400e,
    0 3px 0 #78350f,
    0 4px 0 #78350f,
    0 5px 0 #451a03,
    0 6px 0 #451a03,
    0 8px 12px rgba(0,0,0,0.6),
    0 0 20px rgba(251, 191, 36, 0.5);
}
.velha-celula.vencedora {
  background:
    radial-gradient(circle, rgba(56, 189, 248, 0.3), rgba(56, 189, 248, 0.1)),
    linear-gradient(155deg, #0f172a 0%, #1e293b 100%);
  box-shadow:
    inset 0 4px 8px rgba(0,0,0,0.6),
    inset 0 0 0 2px #38bdf8,
    0 0 30px rgba(56, 189, 248, 0.6);
  animation: velhaPulso 0.7s ease-in-out 3;
}
.velha-celula.vencedora.o {
  background:
    radial-gradient(circle, rgba(251, 191, 36, 0.3), rgba(251, 191, 36, 0.1)),
    linear-gradient(155deg, #0f172a 0%, #1e293b 100%);
  box-shadow:
    inset 0 4px 8px rgba(0,0,0,0.6),
    inset 0 0 0 2px #fbbf24,
    0 0 30px rgba(251, 191, 36, 0.6);
}
@keyframes velhaPulso {
  0%, 100% { transform: translateZ(0) scale(1); }
  50%      { transform: translateZ(20px) scale(1.08); }
}

.velha-linha-vit {
  position: absolute;
  inset: 14px;
  width: calc(100% - 28px);
  height: calc(100% - 28px);
  pointer-events: none;
  z-index: 1;
  opacity: 0;
  transition: opacity 0.3s;
}
.velha-linha-vit.desenhar { opacity: 1; }
.velha-linha-vit line {
  stroke: #38bdf8;
  stroke-width: 6;
  stroke-linecap: round;
  filter: drop-shadow(0 0 8px rgba(56, 189, 248, 0.6));
}
.velha-linha-vit.o line {
  stroke: #fbbf24;
  filter: drop-shadow(0 0 8px rgba(251, 191, 36, 0.6));
}

/* AÇÕES */
.velha-acoes {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}
.arena-btn-fantasma {
  background: transparent;
  color: #cbc4d9;
  border: 1px solid rgba(255, 255, 255, 0.15);
  cursor: pointer;
}
.arena-btn-fantasma:hover {
  border-color: rgba(255, 255, 255, 0.3);
  color: #ffffff;
}

@media (max-width: 540px) {
  .velha-placar { grid-template-columns: 1fr 1fr 1fr; }
  .velha-controles { gap: 8px; }
}