*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;background:linear-gradient(135deg,#0f0c29,#1a1040,#0f0c29);color:#e8e0f0;min-height:100vh}
.container{max-width:900px;margin:0 auto;padding:24px 24px 40px}
.lobby-w{display:flex;flex-direction:column;gap:20px}.lobby{background:rgba(255,255,255,0.10);min-width:280px}.lobby-r{background:rgba(255,255,255,0.03);border:1px solid rgba(167,139,250,0.1);border-radius:16px;padding:20px;min-width:200px}.lobby-r h3{font-size:15px;color:#c9b09c;margin-bottom:12px}.open-item{display:flex;justify-content:space-between;align-items:center;padding:8px 10px;border-radius:8px;cursor:pointer;transition:.15s;margin-bottom:4px;font-size:14px}.open-item:hover{background:rgba(167,139,250,0.08)}.open-item .oc{color:#7dd3fc;font-family:monospace;font-weight:600}.open-item .ot{color:#9890b8;font-size:12px}.open-empty{font-size:13px;color:#9890b8;padding:8px 0}.aiskin{background:rgba(250,204,21,0.06);border:1px solid rgba(250,204,21,0.2);border-radius:10px;padding:10px 14px;cursor:pointer;transition:.15s;margin-top:12px;flex-shrink:0;font-size:14px;color:#facc15}.aiskin:hover{background:rgba(250,204,21,0.12)}.aiskin .sm{font-size:11px;color:rgba(250,204,21,0.5)}.lobby{background:rgba(255,255,255,0.07);border:1px solid rgba(167,139,250,0.15);border-radius:16px;padding:24px}
.lobby h2{font-size:18px;margin-bottom:16px;color:#c9b09c}
.gtypes{display:flex;flex-direction:column;gap:6px;margin-bottom:20px}
.gtype{padding:12px 20px;border:1px solid rgba(167,139,250,0.2);border-radius:10px;cursor:pointer;font-size:15px;background:transparent;color:#e8e0f0;transition:.2s;font-family:inherit;outline:none}
.gtype:hover{border-color:#a78bfa}.gtype.sel:hover{border-color:#7dd3fc!important}
.gtype.sel{border-color:#7dd3fc!important;background:rgba(125,211,252,0.18)!important;box-shadow:0 0 12px rgba(125,211,252,0.3)!important;color:#fff!important}
.gtype-row.sel{border-color:#7dd3fc!important;background:rgba(125,211,252,0.18)!important;box-shadow:0 0 12px rgba(125,211,252,0.3)!important;color:#fff!important}
.gtype-disabled{opacity:0.45;cursor:default!important}

/* Difficulty slider */
#diffSlider{appearance:none;-webkit-appearance:none;background:rgba(167,139,250,0.25);border-radius:3px;outline:none}
#diffSlider::-webkit-slider-thumb{-webkit-appearance:none;width:14px;height:14px;border-radius:50%;background:#a78bfa;cursor:pointer;border:2px solid rgba(255,255,255,0.3)}
#diffSlider::-moz-range-thumb{width:14px;height:14px;border-radius:50%;background:#a78bfa;cursor:pointer;border:2px solid rgba(255,255,255,0.3)}

@media (max-width: 700px) {
  .container{padding:8px 4px 20px}
  .game-header h2{font-size:16px}
  .game-header .room-hint{font-size:11px}
  .hint-toggles{flex-wrap:wrap;gap:8px;font-size:11px}
  .status-bar{flex-direction:column;align-items:center;gap:4px}
  .turn-box{font-size:13px;padding:6px 10px;min-width:120px}
  .timers{font-size:10px;gap:8px}
  .board-wrap{max-width:100vw;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .board{max-width:100vw}
  .game-layout{flex-direction:column!important}
  .game-layout .chat-panel{max-height:250px}
  .game-layout .game-board-zone{min-width:0!important;width:100%!important;max-width:100vw!important}
  .game-layout.domino-layout .board-wrap{max-width:100vw!important;overflow-x:auto!important}
  .win-box{padding:20px;max-width:90vw}
  .win-box h2{font-size:18px}
  .lobby{padding:12px}
  .lobby h2{font-size:15px}
  .gtype{padding:10px 14px;font-size:13px}
  .btn{padding:8px 14px;font-size:13px}
  .join-row input{font-size:16px;padding:8px 10px}
  .acts{justify-content:center}
  .score-box .sc{font-size:18px}
  .chat-msg{font-size:12px;max-width:90%}
  .chat-input{font-size:12px;padding:6px 10px}
}
@media (max-width: 480px) {
  .container{padding:4px 2px 16px}
  .game-header h2{font-size:14px}
  .hint-toggles{font-size:10px;gap:4px}
}
.acts{display:flex;gap:12px;flex-wrap:wrap}
.btn{padding:10px 20px;border:none;border-radius:10px;font-size:14px;font-weight:600;cursor:pointer;background:linear-gradient(135deg,#7c3aed,#6366f1);color:#fff;font-family:inherit;transition:.2s;outline:none}
.btn:hover{transform:translateY(-1px)}
.btn2{background:transparent;border:1px solid rgba(167,139,250,0.4);color:#a78bfa}
.btn2:hover{background:rgba(167,139,250,0.1)}
.join-row{display:flex;gap:8px;margin-top:16px;align-items:center}
.join-row input{flex:1;padding:10px 14px;background:rgba(0,0,0,0.3);border:1px solid rgba(167,139,250,0.2);border-radius:10px;color:#e8e0f0;font-size:18px;text-align:center;letter-spacing:4px;font-family:monospace;text-transform:uppercase;outline:none}
.room-info{background:rgba(125,211,252,0.1);border:1px solid rgba(125,211,252,0.2);border-radius:12px;padding:16px;margin-top:16px;text-align:center;display:none}
.room-info.on{display:block}
.room-info .code{font-size:28px;font-weight:700;color:#7dd3fc;letter-spacing:4px;font-family:monospace}
.room-info .hint{font-size:13px;color:#9890b8;margin-top:4px}
.game-area{display:none;margin-top:0}
.game-area.on{display:block}
.game-header{text-align:center;margin-bottom:16px}
.game-header h2{font-size:20px;font-weight:600;color:#e8e0f0}
.game-header .room-hint{font-size:12px;color:#9890b8;margin-top:2px}
.game-header .room-hint span{color:#7dd3fc;font-family:monospace}.hint-toggles{display:flex;gap:16px;justify-content:center;margin-top:6px;font-size:12px;color:#9890b8}.hint-toggles label{cursor:pointer;display:flex;align-items:center;gap:4px}.hint-toggles input{margin:0}
.status-bar{display:flex;justify-content:space-between;align-items:center;padding:8px 0;margin-bottom:8px;flex-wrap:wrap;gap:8px}
.turn-box{font-size:15px;padding:8px 14px;border-radius:8px;text-align:center;min-width:160px}
.turn-you{background:rgba(125,211,252,0.15);color:#7dd3fc;animation:blinkTurn 1s ease-in-out infinite alternate}
.turn-opp{background:rgba(255,255,255,0.05);color:#9890b8}
@keyframes blinkTurn{from{opacity:0.5}to{opacity:1}}
.pdot{display:inline-block;width:16px;height:16px;border-radius:50%;vertical-align:middle;margin-right:6px}
.score-box{text-align:center;font-size:14px;color:#9890b8}
.score-box .sc{font-size:22px;font-weight:700;color:#e8e0f0}
.timers{display:flex;gap:16px;font-size:11px;color:#9890b8;flex-wrap:wrap;justify-content:center}
.timers span{color:#a78bfa;font-family:monospace}
.board-wrap{text-align:center}
.board{display:inline-block;border:2px solid rgba(167,139,250,0.3);border-radius:4px;line-height:0;position:relative}.board-rev{background:rgba(0,0,0,0.15)}
.brow{display:flex}
.cell{display:inline-table;position:relative;vertical-align:top;cursor:default;transition:background .15s}
.cell.ok{cursor:pointer;box-shadow:inset 0 0 0 3px rgba(125,211,252,0.6)}
.cell.ok:hover{background:rgba(125,211,252,0.15)}
.cell.pick{box-shadow:inset 0 0 0 3px #facc15}
.back-link{text-align:center;padding:10px 0}
.back-link a{color:#a78bfa;text-decoration:none;font-size:14px}
.back-link a:hover{text-decoration:underline}
.footer{text-align:center;padding:20px;border-top:1px solid rgba(255,255,255,0.06)}
.footer a{color:#9890b8;text-decoration:none;margin:0 10px;font-size:13px}
.footer a:hover{color:#a78bfa}
.win-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,0.7);z-index:10;align-items:center;justify-content:center}
.win-overlay.on{display:flex}
.win-box{background:#1a1040;border:1px solid #7dd3fc;border-radius:16px;padding:32px;text-align:center}
.win-box h2{font-size:24px;margin-bottom:12px}
.conn-dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:6px;vertical-align:middle}
.conn-dot.ok{background:#22c55e}.conn-dot.warn{background:#f59e0b}.conn-dot.err{background:#ef4444}
.game-layout{display:flex;gap:16px}.game-layout.domino-layout{flex-direction:column;align-items:center}.game-layout.domino-layout .chat-panel{max-width:900px;width:100%;min-height:250px;max-height:400px}.game-layout.domino-layout .game-board-zone{width:100%!important;max-width:none!important;min-width:0!important}
.game-layout.domino-layout .board{overflow:visible;min-width:600px}
.game-layout.domino-layout .board-wrap{overflow-x:auto;max-width:100%;padding:8px}
.board-dom{min-width:0;max-width:100vw}
@media(max-width:400px){.board-dom svg{width:28px!important;height:56px!important}}
.game-layout.domino-layout{flex-direction:column!important}@media(max-width:700px){.game-layout{flex-direction:column}.game-board-zone{min-width:320px;min-height:320px}}@media(min-width:701px){.game-layout{flex-direction:row;align-items:stretch}.game-layout .game-board-zone{flex:0 0 auto;align-self:flex-start;min-width:320px;min-height:320px}.game-layout .chat-panel{flex:1 1 0;min-width:200px;align-self:stretch;max-height:100%}}.chat-panel{margin-top:0;background:rgba(255,255,255,0.03);border:1px solid rgba(167,139,250,0.12);border-radius:12px;padding:12px;display:flex;flex-direction:column;overflow:hidden}.chat-head{font-size:13px;color:#9890b8;margin-bottom:8px;flex-shrink:0}.chat-msgs{flex:1;overflow-y:auto;min-height:0;padding:4px 0}.chat-msg{max-width:80%;padding:6px 10px;border-radius:10px;font-size:13px;line-height:1.4;word-break:break-word}.chat-msg.p1{background:rgba(167,139,250,0.15);align-self:flex-start;color:#e8e0f0;border-bottom-left-radius:2px}.chat-msg.p2{background:rgba(125,211,252,0.12);align-self:flex-end;color:#e8e0f0;border-bottom-right-radius:2px}.chat-msg .meta{font-size:10px;color:#9890b8;margin-top:3px}.chat-msg .meta .who{color:#7dd3fc;font-weight:600}.chat-input-row{clear:both;width:100%;display:flex;gap:8px;margin-top:12px;flex-shrink:0}.chat-input{flex:1;padding:8px 12px;border:1px solid rgba(167,139,250,0.2);border-radius:8px;background:rgba(255,255,255,0.10);color:#e8e0f0;font-size:13px;outline:none;font-family:inherit}.chat-input:focus{border-color:#7dd3fc}.chat-btn{padding:8px 14px;border:none;border-radius:8px;background:rgba(125,211,252,0.15);color:#7dd3fc;cursor:pointer;font-size:16px;font-weight:600;transition:.15s}.chat-btn:hover{background:rgba(125,211,252,0.25)}

/* Cell grid lines */
.cell{border:1px solid rgba(167,139,250,0.15)}
.csrc{background:rgba(167,139,250,0.08)}
.cdst{background:rgba(125,211,252,0.12)}
.ok{background:rgba(34,197,94,0.2)!important;cursor:pointer}
.pick{background:rgba(250,204,21,0.18)!important}
.no-src .csrc{background:transparent}
/* Chess/checkers alternating squares */
.board-ch .csrc,.board-chk .csrc{background:rgba(60,40,100,0.45)}
.board-ch .cell:not(.csrc),.board-chk .cell:not(.csrc){background:rgba(255,255,255,0.10)}
.board-chk .cell.ok{box-shadow:inset 0 0 0 3px rgba(34,197,94,0.8),0 0 12px rgba(34,197,94,0.3)}
.board-chk .cell.pick{box-shadow:inset 0 0 0 3px #facc15,0 0 12px rgba(250,204,21,0.4)}
/* Reversi grid */
.board-rev .cell{border:1px solid rgba(100,200,255,0.2)}
.board-rev .csrc{background:rgba(0,100,50,0.1)}
.open-item-postponed{padding:8px 12px;background:rgba(250,204,21,0.1);border:1px dashed rgba(250,204,21,0.3);border-radius:6px;cursor:pointer;margin-bottom:4px;transition:.2s}.open-item-postponed:hover{background:rgba(250,204,21,0.2)}