:root {
            --primary-color: #4361ee;
            --secondary-color: #3f37c9;
            --accent-color: #4895ef;
            --danger-color: #f72585;
            --success-color: #4cc9f0;
            --light-color: #f8f9fa;
            --dark-color: #212529;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            user-select: none;
        }
        
        body {
            font-family: 'Roboto', sans-serif;
            background-color: #f5f5f5;
            color: var(--dark-color);
            overflow: hidden;
            touch-action: manipulation;
            height: 100vh;
        }
        
        .container {
            width: 100%;
            max-width: 500px;
            margin: 0 auto;
            height: 100vh;
            display: flex;
            flex-direction: column;
            position: relative;
            background-color: white;
            box-shadow: 0 0 20px rgba(0,0,0,0.1);
        }
        
        /* Connection Status */
        .connection-status {
            padding: 10px 15px;
            background-color: var(--danger-color);
            color: white;
            text-align: center;
            font-weight: 500;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: all 0.3s ease;
        }
        
        .connection-status.connected {
            background-color: var(--success-color);
        }
        
        /* Header */
        .header {
            padding: 15px;
            background-color: var(--primary-color);
            color: white;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            font-weight: 700;
            font-size: 1.2rem;
        }
        
        .score-display {
            background-color: rgba(255,255,255,0.2);
            padding: 5px 15px;
            border-radius: 20px;
            font-weight: 500;
        }
        
        /* Game Area */
        .game-area {
            flex: 1;
            position: relative;
            overflow: hidden;
            background: linear-gradient(to bottom, #48c6ef 0%, #6f86d6 100%);
        }
        
        .bubble {
            position: absolute;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, white, #ffcc00);
            box-shadow: inset 0 -5px 10px rgba(0,0,0,0.2), 0 2px 5px rgba(0,0,0,0.2);
            cursor: pointer;
            transition: transform 0.1s;
        }
        
        .bubble:active {
            transform: scale(0.95);
        }
        
        /* Controls */
        .controls {
            padding: 15px;
            background-color: white;
            display: flex;
            justify-content: space-between;
            border-top: 1px solid #eee;
        }
        
        .btn {
            padding: 10px 20px;
            border: none;
            border-radius: 5px;
            font-weight: 500;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: all 0.2s;
        }
        
        .btn-primary {
            background-color: var(--primary-color);
            color: white;
        }
        
        .btn-primary:hover {
            background-color: var(--secondary-color);
        }
        
        .btn-danger {
            background-color: var(--danger-color);
            color: white;
        }
        
        .btn-danger:hover {
            background-color: #d1145a;
        }
        
        /* Game Over Modal */
        .modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0,0,0,0.7);
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 100;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s;
        }
        
        .modal.active {
            opacity: 1;
            pointer-events: all;
        }
        
        .modal-content {
            background-color: white;
            padding: 25px;
            border-radius: 10px;
            width: 80%;
            max-width: 350px;
            text-align: center;
            transform: translateY(-20px);
            transition: transform 0.3s;
        }
        
        .modal.active .modal-content {
            transform: translateY(0);
        }
        
        .modal h2 {
            margin-bottom: 15px;
            color: var(--primary-color);
        }
        
        .modal p {
            margin-bottom: 20px;
            font-size: 1.1rem;
        }
        
        /* Tutorial */
        .tutorial {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background-color: rgba(255,255,255,0.9);
            padding: 20px;
            border-radius: 10px;
            text-align: center;
            max-width: 80%;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
            z-index: 10;
        }
        
        .tutorial h3 {
            margin-bottom: 10px;
            color: var(--primary-color);
        }
        
        .tutorial p {
            margin-bottom: 15px;
        }
        
        /* Animations */
        @keyframes bubbleFloat {
            0% { transform: translateY(0) rotate(0deg); }
            50% { transform: translateY(-10px) rotate(5deg); }
            100% { transform: translateY(0) rotate(0deg); }
        }
        
        .bubble-float {
            animation: bubbleFloat 3s infinite ease-in-out;
        }