*{margin:0;padding:0;box-sizing:border-box}body{background:#0d0d1a;display:flex;justify-content:center;align-items:center;min-height:100vh;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;color:#e0d8c8;overflow:hidden}#app{position:relative}#game-canvas{display:block;border:2px solid #3a3050;border-radius:4px;background:#16213e}#hud{position:absolute;top:0;left:0;right:0;z-index:10;pointer-events:none}#top-bar{display:flex;gap:10px;padding:6px 12px;background:#0a0a16e0;border-bottom:2px solid #3a3050;align-items:center;font-size:13px;pointer-events:auto}#top-bar span{padding:4px 10px;background:#3a305066;border-radius:4px;white-space:nowrap}#top-bar button{padding:4px 14px;background:#4a3a60;color:#e0d8c8;border:1px solid #6a5a80;border-radius:4px;cursor:pointer;font-size:13px;transition:background .15s}#top-bar button:hover{background:#6a5a80}#top-bar button:active{background:#8a7aa0}#wave-over{text-align:center;padding:4px;font-size:14px;color:#c8b060;background:#0a0a16b3;min-height:22px}.panel{position:absolute;background:#100c1cf0;border:2px solid #4a3a60;border-radius:6px;padding:10px;z-index:20;min-width:200px;font-size:13px}.panel-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;font-weight:700;font-size:14px;color:#c8b060}.close-btn{background:none;border:none;color:#a09080;cursor:pointer;font-size:16px;padding:2px 6px}.close-btn:hover{color:#e0d8c8}#tower-panel{right:10px;top:50px}#tower-panel-level{margin-bottom:4px;color:#a090c0}#tower-panel-xp-bar{height:8px;background:#3a305080;border-radius:4px;margin-bottom:8px;overflow:hidden}#tower-panel-xp-fill{height:100%;background:linear-gradient(90deg,#6a4ac0,#8a6ae0);border-radius:4px;transition:width .3s}#tower-panel-stats{margin-bottom:8px;line-height:1.6;color:#c8c0b8}.panel-actions{display:flex;gap:6px}.panel-actions button{flex:1;padding:6px 10px;border:1px solid #4a3a60;border-radius:4px;background:#2a2040;color:#e0d8c8;cursor:pointer;font-size:12px;transition:background .15s}.panel-actions button:hover{background:#4a3a60}.panel-actions button:disabled{opacity:.4;cursor:not-allowed}#build-menu{left:50%;top:50%;transform:translate(-50%,-50%);min-width:280px}#build-options{display:flex;flex-direction:column;gap:6px}.build-option{display:flex;justify-content:space-between;align-items:center;padding:8px 10px;background:#2a204099;border:1px solid #4a3a60;border-radius:4px;cursor:pointer;transition:background .15s}.build-option:hover{background:#4a3a60b3}.build-option.disabled{opacity:.4;cursor:not-allowed}.build-option .name{font-weight:700}.build-option .cost{color:#c8a040}#overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;justify-content:center;align-items:center;background:#05050fd9;z-index:30}.overlay-content{text-align:center;max-width:450px}.overlay-content h2{font-size:36px;color:#c8b060;margin-bottom:12px}.overlay-content p{font-size:16px;color:#c8c0b8;margin-bottom:20px;line-height:1.5}.overlay-content button{padding:10px 32px;font-size:16px;background:#4a3a60;color:#e0d8c8;border:2px solid #6a5a80;border-radius:6px;cursor:pointer}.overlay-content button:hover{background:#6a5a80}#difficulty-options{display:flex;gap:8px;justify-content:center;margin:10px 0 6px}.diff-btn{padding:8px 20px;background:#2a2040;color:#a090c0;border:2px solid #4a3a60;border-radius:6px;cursor:pointer;font-size:14px;transition:background .15s,color .15s,border-color .15s}.diff-btn:hover{background:#3a2a50;color:#e0d8c8}.diff-btn.selected{background:#4a3a60;color:#e0d8c8;border-color:#8a7aa0}.diff-label{font-size:14px;color:#a090c0;margin-bottom:4px}.diff-desc{font-size:12px!important;color:#a09080!important;margin-bottom:12px!important;min-height:18px}.hidden{display:none!important}#map-selector{margin:10px 0}#map-selector select{padding:6px 12px;font-size:14px;background:#2a2040;color:#e0d8c8;border:2px solid #4a3a60;border-radius:4px;cursor:pointer}#map-selector select:focus{outline:none;border-color:#8a7aa0}#name-prompt{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;justify-content:center;align-items:center;background:#05050feb;z-index:40}#name-prompt .prompt-content{background:#100c1cf5;border:2px solid #6a5a80;border-radius:8px;padding:24px;text-align:center;max-width:350px}#name-prompt h3{font-size:20px;color:#c8b060;margin-bottom:12px}#name-prompt input{width:100%;padding:8px 12px;font-size:16px;background:#1a1030;color:#e0d8c8;border:2px solid #4a3a60;border-radius:4px;margin-bottom:12px;outline:none}#name-prompt input:focus{border-color:#8a7aa0}#name-prompt button{padding:8px 24px;font-size:15px;background:#4a3a60;color:#e0d8c8;border:2px solid #6a5a80;border-radius:4px;cursor:pointer}#name-prompt button:hover{background:#6a5a80}#leaderboard{margin-top:12px;text-align:left}#leaderboard h4{font-size:14px;color:#a090c0;margin-bottom:8px;text-align:center}#leaderboard table{width:100%;border-collapse:collapse;font-size:12px}#leaderboard th,#leaderboard td{padding:4px 8px;border-bottom:1px solid rgba(74,58,96,.4)}#leaderboard th{color:#a090c0;text-align:left}#leaderboard td{color:#c8c0b8}#leaderboard .rank{color:#c8b060;font-weight:700}