*{box-sizing:border-box;margin:0;padding:0}body{background:#f0f0f0;min-height:100vh;font-family:Segoe UI,Arial,sans-serif;overflow:hidden}.game-wrapper{flex-direction:column;height:100vh;display:flex;overflow:hidden}.game-header{color:#ecf0f1;z-index:300;background:#1a252f;flex-wrap:wrap;flex-shrink:0;align-items:center;gap:8px;padding:8px 16px;display:flex;box-shadow:0 2px 8px #00000073}.game-header h1{letter-spacing:3px;text-transform:uppercase;color:#f1c40f;margin-right:8px;font-size:1.25rem;font-weight:800}.header-group{border-left:1px solid #ffffff1f;align-items:center;gap:4px;padding:0 6px;display:flex}.btn-tool{color:#ecf0f1;cursor:pointer;white-space:nowrap;background:#ffffff14;border:1px solid #ffffff2e;border-radius:6px;padding:5px 10px;font-size:.78rem;transition:background .15s,border-color .15s}.btn-tool:hover{background:#ffffff2e}.btn-tool.active{color:#1a252f;background:#f1c40f;border-color:#f1c40f;font-weight:700}.btn-tool.danger{color:#ff8a80;background:#e74c3c40;border-color:#e74c3c}.btn-tool.danger:hover{background:#e74c3c73}.btn-reset{color:#fff;cursor:pointer;white-space:nowrap;background:#e74c3c;border:none;border-radius:6px;padding:5px 14px;font-size:.82rem;transition:background .2s}.btn-reset:hover{background:#c0392b}.board-container{background-color:#e8e8e8;background-image:linear-gradient(#b4b4b440 1px,#0000 1px),linear-gradient(90deg,#b4b4b440 1px,#0000 1px),none;background-position:0 0,0 0,0 0;background-repeat:repeat,repeat,repeat;background-size:50px 50px;background-attachment:scroll,scroll,scroll;background-origin:padding-box,padding-box,padding-box;background-clip:border-box,border-box,border-box;flex:1;position:relative;overflow:hidden}.board-container.draw-mode{cursor:crosshair}.draw-hint{color:#fff;pointer-events:none;z-index:210;white-space:nowrap;background:#141414bf;border-radius:20px;padding:8px 18px;font-size:.82rem;position:absolute;bottom:16px;left:50%;transform:translate(-50%)}.rotation-panel{z-index:150;background:#ffffffed;border-radius:10px;min-width:200px;max-height:80vh;padding:10px 12px;position:absolute;top:50%;right:12px;overflow-y:auto;transform:translateY(-50%);box-shadow:0 2px 14px #00000029}.rotation-panel p{color:#555;text-transform:uppercase;letter-spacing:1px;margin-bottom:6px;font-size:.72rem;font-weight:700}.rot-row{align-items:center;gap:5px;margin-bottom:5px;display:flex}.piece-dot{border-radius:3px;flex-shrink:0;width:12px;height:12px}.piece-name{color:#333;white-space:nowrap;text-overflow:ellipsis;flex:1;font-size:.72rem;overflow:hidden}.rot-row button{cursor:pointer;background:#f5f5f5;border:1px solid #ccc;border-radius:4px;flex-shrink:0;padding:2px 7px;font-size:.8rem;transition:background .12s}.rot-row button:hover{background:#ddd}.figure-library{z-index:250;background:#fffffff7;border-radius:12px;min-width:320px;padding:14px 16px;position:absolute;top:60px;left:50%;transform:translate(-50%);box-shadow:0 4px 24px #00000038}.lib-header{color:#333;justify-content:space-between;align-items:center;margin-bottom:12px;font-size:.9rem;font-weight:700;display:flex}.lib-close{cursor:pointer;color:#888;background:0 0;border:none;border-radius:4px;padding:2px 6px;font-size:1rem}.lib-close:hover{color:#333;background:#eee}.lib-grid{grid-template-columns:repeat(4,1fr);gap:8px;display:grid}.lib-item{cursor:pointer;background:#f7f7f7;border:2px solid #0000;border-radius:8px;flex-direction:column;align-items:center;gap:4px;padding:10px 6px;transition:border-color .15s,background .15s;display:flex}.lib-item:hover{background:#eef;border-color:#aac}.lib-item.active{background:#ebf5fb;border-color:#3498db}.lib-emoji{font-size:1.6rem;line-height:1}.lib-label{color:#555;font-size:.7rem}