body {
            font-family: 'Courier New', monospace;
            max-width: 800px;
            margin: 20px auto;
            padding: 20px;
            background-color: #1a1a1a;
            color: #00ff00;
        }
        
        h2 {
            color: #00ffff;
            border-bottom: 2px solid #00ffff;
            padding-bottom: 10px;
        }
        
        pre {
            background-color: #0a0a0a;
            padding: 15px;
            border-radius: 5px;
            border: 1px solid #00ff00;
        }
        
        button {
            background-color: #003300;
            color: #00ff00;
            border: 2px solid #00ff00;
            padding: 10px 20px;
            margin: 5px;
            cursor: pointer;
            font-family: 'Courier New', monospace;
            font-size: 14px;
            transition: all 0.3s;
        }
        
        button:hover {
            background-color: #00ff00;
            color: #000;
        }
        
        button:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }
        
        main {
            border: 2px solid #00ff00;
            padding: 15px;
            margin: 20px 0;
            min-height: 200px;
            max-height: 400px;
            overflow-y: auto;
            background-color: #0a0a0a;
            display: none;
        }
        
        main {
            display: block;
        }
        
        .attack-message {
            color: #ff6600;
            font-weight: bold;
            padding: 10px;
            background-color: #0a0a0a;
            border-left: 3px solid #ff6600;
            margin: 10px 0;
        }
        
        .victory {
            color: #00ff00;
            font-size: 1.3em;
            font-weight: bold;
            animation: blink 1s infinite;
        }
        
        .defeat {
            color: #ff0000;
            font-size: 1.3em;
            font-weight: bold;
        }
        
        .round {
            color: #ffff00;
            font-weight: bold;
            margin-top: 15px;
        }
        
        @keyframes blink {
            0%, 50%, 100% { opacity: 1; }
            25%, 75% { opacity: 0.5; }
        }
        
        .stats-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin: 20px 0;
        }
        
        .stat-box {
            background-color: #0a0a0a;
            padding: 15px;
            border: 1px solid #00ff00;
            border-radius: 5px;
        }
        
        .enemy-level {
            color: #ff6600;
            font-weight: bold;
        }

        @media (max-width: 640px) {
            body {
                margin: 0;
                padding: 14px;
            }

            pre {
                overflow-x: auto;
            }

            .stats-container {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            button {
                width: 100%;
                padding: 12px 14px;
            }
        }