*{margin:0;padding:0;box-sizing:border-box}body{font-family:Courier New,monospace;background:linear-gradient(180deg,#0000fc,#0000a0);min-height:100vh;overflow-x:hidden}.game-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}.game-wrapper{width:100%;max-width:900px;background:#000;border:8px solid #FCFC00;box-shadow:0 0 0 4px #000,0 0 0 8px #fcfc00,8px 8px 0 8px #00000080;padding:24px}.game-header{text-align:center;margin-bottom:24px;border-bottom:4px solid #FCFC00;padding-bottom:16px}.game-title{font-size:48px;color:#fcfc00;text-shadow:4px 4px 0 #FC0000,8px 8px 0 rgba(0,0,0,.5);letter-spacing:4px;margin-bottom:8px}.game-subtitle{font-size:14px;color:#fff;letter-spacing:2px;text-shadow:2px 2px 0 rgba(0,0,0,.8)}.game-menu{text-align:center;padding:48px 24px}.game-controls-info{margin-bottom:48px;padding:24px;background:#1a1a1a;border:4px solid #666;box-shadow:inset 2px 2px #00000080}.controls-title{font-size:24px;color:#fff;margin-bottom:16px;text-shadow:2px 2px 0 rgba(0,0,0,.8)}.controls-text{font-size:16px;color:#ccc;margin-bottom:8px;text-shadow:1px 1px 0 rgba(0,0,0,.8)}.game-button{font-family:Courier New,monospace;font-size:20px;font-weight:700;padding:16px 32px;margin:8px;border:none;cursor:pointer;text-transform:uppercase;letter-spacing:2px;transition:transform .1s;position:relative}.game-button:active{transform:translate(2px,2px)}.game-button:disabled{opacity:.5;cursor:not-allowed}.game-button-start{background:#00fc00;color:#000;border:4px solid #00A000;box-shadow:inset -2px -2px #00a000,inset 2px 2px #80ff80,4px 4px #00000080}.game-button-start:hover:not(:disabled){background:#80ff80}.game-button-secondary{background:#666;color:#fff;border:4px solid #333;box-shadow:inset -2px -2px #333,inset 2px 2px #999,4px 4px #00000080}.game-button-secondary:hover:not(:disabled){background:#888}.game-button-primary{background:#0000fc;color:#fff;border:4px solid #0000A0;box-shadow:inset -2px -2px #0000a0,inset 2px 2px #8080ff,4px 4px #00000080}.game-button-primary:hover:not(:disabled){background:#4040ff}.game-button-danger{background:#fc0000;color:#fff;border:4px solid #A00000;box-shadow:inset -2px -2px #a00000,inset 2px 2px #ff8080,4px 4px #00000080}.game-button-danger:hover:not(:disabled){background:#ff4040}.game-play{position:relative}.game-canvas{width:100%;height:auto;border:4px solid #666;background:#5c94fc;image-rendering:pixelated;image-rendering:-moz-crisp-edges;image-rendering:crisp-edges;box-shadow:inset 2px 2px #00000080}.mobile-controls{display:flex;justify-content:space-between;align-items:center;margin-top:16px;padding:16px;background:#1a1a1a;border:4px solid #666}.mobile-dpad{display:flex;gap:8px}.mobile-button{width:80px;height:80px;font-size:32px;font-weight:700;border:none;cursor:pointer;-moz-user-select:none;user-select:none;-webkit-user-select:none;touch-action:manipulation}.mobile-button-left,.mobile-button-right{background:#666;color:#fff;border:4px solid #333;box-shadow:inset -2px -2px #333,inset 2px 2px #999,4px 4px #00000080}.mobile-button-left:active,.mobile-button-right:active{background:#888;transform:translate(2px,2px);box-shadow:inset -2px -2px #333,inset 2px 2px #999,2px 2px #00000080}.mobile-button-jump{background:#fc0000;color:#fff;border:4px solid #A00000;box-shadow:inset -2px -2px #a00000,inset 2px 2px #ff8080,4px 4px #00000080;font-size:18px}.mobile-button-jump:active{background:#ff4040;transform:translate(2px,2px);box-shadow:inset -2px -2px #a00000,inset 2px 2px #ff8080,2px 2px #00000080}.game-over{text-align:center;padding:48px 24px}.game-over-title{font-size:48px;color:#fc0000;text-shadow:4px 4px 0 #A00000,8px 8px 0 rgba(0,0,0,.5);margin-bottom:24px}.game-over-score{font-size:32px;color:#fcfc00;text-shadow:2px 2px 0 #A0A000,4px 4px 0 rgba(0,0,0,.5);margin-bottom:32px}.game-over-form{max-width:400px;margin:0 auto 32px}.game-input{width:100%;font-family:Courier New,monospace;font-size:18px;padding:12px 16px;margin-bottom:16px;background:#1a1a1a;color:#fff;border:4px solid #666;box-shadow:inset 2px 2px #00000080;text-align:center}.game-input::-moz-placeholder{color:#666}.game-input::placeholder{color:#666}.game-input:focus{outline:none;border-color:#fcfc00}.game-over-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}.leaderboard-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000e6;display:flex;align-items:center;justify-content:center;padding:20px;z-index:1000}.leaderboard-modal{background:#000;border:8px solid #FCFC00;box-shadow:0 0 0 4px #000,0 0 0 8px #fcfc00,8px 8px 0 8px #00000080;padding:24px;max-width:600px;width:100%;max-height:80vh;overflow:hidden;display:flex;flex-direction:column}.leaderboard-title{font-size:32px;color:#fcfc00;text-align:center;text-shadow:3px 3px 0 #A0A000,6px 6px 0 rgba(0,0,0,.5);margin-bottom:24px;letter-spacing:3px}.leaderboard-content{flex:1;overflow-y:auto;margin-bottom:24px;border:4px solid #666;background:#1a1a1a}.leaderboard-table{width:100%;border-collapse:collapse;font-size:18px}.leaderboard-table thead{background:#333;position:sticky;top:0}.leaderboard-table th{color:#fcfc00;padding:12px;text-align:left;border-bottom:4px solid #666;text-shadow:2px 2px 0 rgba(0,0,0,.8)}.leaderboard-table th:last-child{text-align:right}.leaderboard-table td{color:#fff;padding:12px;border-bottom:2px solid #333;text-shadow:1px 1px 0 rgba(0,0,0,.8)}.leaderboard-table td:first-child{color:#fcfc00;font-weight:700}.leaderboard-table td:last-child{text-align:right;color:#fcfc00;font-weight:700}.leaderboard-table tbody tr:hover{background:#2a2a2a}.leaderboard-empty{text-align:center!important;color:#666!important;padding:48px 12px!important;font-size:16px}@media(max-width:768px){.game-wrapper{padding:16px;border-width:4px}.game-title{font-size:32px;text-shadow:3px 3px 0 #FC0000,6px 6px 0 rgba(0,0,0,.5)}.game-subtitle{font-size:12px}.game-button{font-size:16px;padding:12px 24px}.game-over-title{font-size:36px}.game-over-score,.leaderboard-title{font-size:24px}.leaderboard-table{font-size:14px}.leaderboard-table th,.leaderboard-table td{padding:8px}}@media(max-width:480px){.game-container{padding:10px}.game-title{font-size:24px;letter-spacing:2px}.game-subtitle{font-size:10px;letter-spacing:1px}.controls-title{font-size:18px}.controls-text{font-size:14px}.game-button{font-size:14px;padding:10px 20px;margin:4px}.mobile-button{width:60px;height:60px;font-size:24px}.mobile-button-jump{font-size:14px}.game-over-title{font-size:28px}.game-over-score{font-size:20px}.game-over-actions{flex-direction:column}.game-over-actions .game-button{width:100%}}.leaderboard-content::-webkit-scrollbar{width:12px}.leaderboard-content::-webkit-scrollbar-track{background:#000;border-left:2px solid #666}.leaderboard-content::-webkit-scrollbar-thumb{background:#666;border:2px solid #000}.leaderboard-content::-webkit-scrollbar-thumb:hover{background:#888}