.omok-wrap{
  max-width:560px;
}

.omok-panel{
  margin-top:36px;
}

.btn-small{
  padding:8px 16px;
  font-size:11px;
}

.omok-divider{
  margin:22px 0;
  font-family:'Orbitron',sans-serif;
  font-size:11px;
  letter-spacing:.3em;
  color:var(--cyan-dim);
}

.join-form{
  display:flex;
  gap:10px;
  justify-content:center;
  flex-wrap:wrap;
}
.join-input{
  width:160px;
  padding:14px 16px;
  background:rgba(63,242,255,0.06);
  border:1px solid rgba(63,242,255,0.35);
  border-radius:2px;
  color:#fff;
  font-family:'Orbitron',sans-serif;
  font-size:16px;
  letter-spacing:.3em;
  text-align:center;
  text-transform:uppercase;
  outline:none;
  transition:border-color .25s, box-shadow .25s;
}
.join-input:focus{
  border-color:var(--cyan);
  box-shadow:0 0 18px rgba(63,242,255,0.4);
}

.room-info{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:14px;
  flex-wrap:wrap;
  margin-bottom:10px;
}
.room-info-label{
  font-family:'Orbitron',sans-serif;
  font-size:11px;
  letter-spacing:.2em;
  color:var(--cyan-dim);
}
.room-code{
  font-family:'Orbitron',sans-serif;
  font-size:22px;
  font-weight:700;
  letter-spacing:.3em;
  color:var(--cyan);
  text-shadow:0 0 12px rgba(63,242,255,0.6);
}

.omok-board{
  display:grid;
  grid-template-columns:repeat(15, 1fr);
  gap:2px;
  max-width:420px;
  margin:26px auto 0;
  background:rgba(63,242,255,0.15);
  border:1px solid rgba(63,242,255,0.3);
  padding:2px;
  border-radius:4px;
  user-select:none;
  touch-action:manipulation;
}

.omok-cell{
  aspect-ratio:1/1;
  display:flex;
  align-items:center;
  justify-content:center;
  background:#070b14;
  cursor:pointer;
}
.omok-cell.disabled{cursor:not-allowed;}

.stone{
  width:78%;
  height:78%;
  border-radius:50%;
  transition:transform .15s ease;
}
.stone.pop{animation:stonePop .18s ease;}
@keyframes stonePop{
  0%{transform:scale(0.4);}
  100%{transform:scale(1);}
}
.stone.black{
  background:radial-gradient(circle at 35% 30%, #7c94a3, #1a2028 75%);
  border:2px solid rgba(200,230,240,0.65);
  box-shadow:0 0 8px rgba(0,0,0,0.7), 0 0 12px rgba(63,242,255,0.4);
}
.stone.white{
  background:radial-gradient(circle at 35% 30%, #ffffff, #cdeffb 75%);
  box-shadow:0 0 10px rgba(255,255,255,0.6);
}

.action-row{
  margin-top:32px;
}

@media (max-width:480px){
  .omok-board{max-width:340px;}
  .join-input{width:130px;font-size:14px;}
}