/* XO Game Overlay - clean & modern */
#xoOverlay {
  position: fixed;
  inset: 0;
  display: none;
  z-index: 999999;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

#xoOverlay .xo-card{
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%,-50%);
  width: min(420px, calc(100vw - 22px));
  border-radius: 18px;
  background: rgba(255,255,255,.92);
  box-shadow: 0 12px 50px rgba(0,0,0,.35);
  overflow: hidden;
  border: 1px solid rgba(0,0,0,.08);
}

#xoOverlay .xo-head{
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  background: linear-gradient(180deg, rgba(255,255,255,.95), rgba(245,245,245,.9));
  border-bottom: 1px solid rgba(0,0,0,.06);
}

#xoOverlay .xo-title{
  font-weight: 800;
  font-size: 14px;
  color: #111;
  display: flex;
  align-items: center;
  gap: 8px;
}

#xoOverlay .xo-status{
  padding: 0 16px 12px 16px;
  font-size: 13px;
  color: #222;
}

#xoOverlay .xo-players{
  padding: 10px 16px 0 16px;
  font-size: 12px;
  color: #333;
  display: flex;
  justify-content: space-between;
  gap: 10px;
}

#xoOverlay .xo-grid{
  padding: 14px 16px 16px 16px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

#xoOverlay .xo-cell{
  aspect-ratio: 1 / 1;
  border-radius: 14px;
  background: #fff;
  border: 1px solid rgba(0,0,0,.08);
  box-shadow: 0 6px 18px rgba(0,0,0,.08);
  cursor: pointer;
  display: grid;
  place-items: center;
  font-size: 38px;
  font-weight: 900;
  color: #111;
  user-select: none;
  transition: transform .08s ease, box-shadow .08s ease;
}

#xoOverlay .xo-cell:hover{
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(0,0,0,.12);
}

#xoOverlay .xo-cell.disabled{
  cursor: not-allowed;
  opacity: .65;
}

#xoOverlay .xo-foot{
  padding: 12px 16px 16px 16px;
  display: flex;
  gap: 8px;
  justify-content: space-between;
  border-top: 1px solid rgba(0,0,0,.06);
  background: rgba(250,250,250,.8);
}

#xoOverlay .xo-btn{
  border: 0;
  border-radius: 12px;
  padding: 10px 12px;
  font-weight: 800;
  font-size: 12px;
  cursor: pointer;
}

#xoOverlay .xo-btn.primary{ background:#111; color:#fff; }
#xoOverlay .xo-btn.danger{ background:#d9534f; color:#fff; }
#xoOverlay .xo-btn.light{ background:#fff; color:#111; border:1px solid rgba(0,0,0,.12); }

#xoOverlay .xo-close{
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid rgba(0,0,0,.12);
  cursor: pointer;
  display: grid;
  place-items: center;
  font-weight: 900;
  color: #111;
}