body {
            margin: 0;
            font-family: Arial, sans-serif;
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            background: #f0f0f0;
        }
        .game-container {
            width: 800px;
            max-width: 95vw;
            background: white;
            border-radius: 8px;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
            padding: 20px;
        }
        .game-header {
            text-align: center;
            margin-bottom: 20px;
        }
        .game-stats {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 20px;
        }
        .game-area {
            height: 400px;
            background: #e6f3ff;
            border-radius: 8px;
            position: relative;
            overflow: hidden;
            cursor: crosshair;
        }
        .balloon {
            position: absolute;
            border-radius: 50%;
            transition: bottom 50ms linear;
        }
        .power-up {
            animation: pulse 1s infinite;
        }
        .click-effect {
            position: absolute;
            width: 16px;
            height: 16px;
            border: 2px solid red;
            border-radius: 50%;
            opacity: 0.5;
            pointer-events: none;
            animation: clickEffect 0.3s forwards;
        }
        .button {
            padding: 10px;
            background: #3b82f6;
            color: white;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            font-weight: bold;
        }
        .button:hover {
            background: #2563eb;
        }
        .start-button {
            display: block;
            width: 100%;
            margin-top: 20px;
        }
        .controls-wrapper {
            position: absolute;
            top: 10px;
            right: 10px;
            z-index: 30;
        }
        .power-up-text {
            color: #22c55e;
            font-weight: bold;
        }
        .pause-overlay {
            position: absolute;
            top: 50px;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            display: none;
            justify-content: center;
            align-items: center;
            z-index: 20;
        }
        .pause-text {
            color: white;
            font-size: 2em;
            font-weight: bold;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
        }
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.1); }
            100% { transform: scale(1); }
        }
        @keyframes clickEffect {
            0% { transform: translate(-50%, -50%) scale(0.5); opacity: 1; }
            100% { transform: translate(-50%, -50%) scale(2); opacity: 0; }
        }