* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        .visually-hidden {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #1a2a6c, #b21f1f, #fdbb2d);
            height: 100vh;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            color: white;
        }
        
        .header {
            text-align: center;
            padding: 20px;
            background-color: rgba(0, 0, 0, 0.5);
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        }
        
        h1 {
            font-size: 2.5rem;
            margin-bottom: 10px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
        }
        
        .game-container {
            flex: 1;
            position: relative;
        }
        
        canvas {
            display: block;
            background-color: rgba(0, 0, 0, 0.2);
            border-radius: 8px;
            box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
        }
        
        .controls {
            position: absolute;
            top: 20px;
            left: 20px;
            background-color: rgba(0, 0, 0, 0.6);
            padding: 15px;
            border-radius: 10px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
            z-index: 10;
        }
        
        .controls button {
            background: linear-gradient(to bottom, #4CAF50, #2E8B57);
            color: white;
            border: none;
            padding: 10px 15px;
            margin: 5px;
            border-radius: 5px;
            cursor: pointer;
            font-weight: bold;
            transition: all 0.3s ease;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
        }
        
        .controls button:hover {
            background: linear-gradient(to bottom, #5CBF60, #3E9B67);
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
        }
        
        .controls button:active {
            transform: translateY(1px);
            box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
        }

        .controls button.btn-secondary {
            background: linear-gradient(to bottom, #9b59b6, #8e44ad);
        }

        .controls button.btn-secondary:hover {
            background: linear-gradient(to bottom, #a569bd, #9b59b6);
        }

        .stats .combo-line span#comboDisplay {
            font-weight: bold;
            color: #ffe066;
        }

        .stats.combo-hot .combo-line span#comboDisplay {
            text-shadow: 0 0 8px rgba(255, 224, 102, 0.9);
        }
        
        .color-picker {
            margin: 10px 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
        }
        
        .color-option {
            width: 30px;
            height: 30px;
            margin: 5px;
            border-radius: 50%;
            cursor: pointer;
            border: 2px solid white;
            transition: transform 0.2s ease;
        }
        
        .color-option:hover {
            transform: scale(1.2);
        }
        
        .color-option.selected {
            border: 3px solid yellow;
            box-shadow: 0 0 10px yellow;
        }
        
        .stats {
            position: absolute;
            top: 20px;
            right: 20px;
            background-color: rgba(0, 0, 0, 0.6);
            padding: 15px;
            border-radius: 10px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
            min-width: 150px;
        }
        
        .stats h3 {
            margin-bottom: 10px;
            text-align: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.3);
            padding-bottom: 5px;
        }
        
        .stats p {
            margin: 5px 0;
            font-size: 1.1rem;
        }
        
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.7);
            z-index: 100;
            justify-content: center;
            align-items: center;
        }
        
        .modal-content {
            background: linear-gradient(135deg, #2c3e50, #4ca1af);
            padding: 30px;
            border-radius: 15px;
            text-align: center;
            max-width: 500px;
            box-shadow: 0 0 30px rgba(0, 0, 0, 0.5);
            transform: scale(0.8);
            opacity: 0;
            transition: all 0.3s ease;
        }
        
        .modal.active {
            display: flex;
        }
        
        .modal.active .modal-content {
            transform: scale(1);
            opacity: 1;
        }
        
        .modal h2 {
            margin-bottom: 20px;
            color: white;
            font-size: 2rem;
        }
        
        .modal p {
            margin-bottom: 25px;
            font-size: 1.2rem;
            line-height: 1.5;
        }
        
        .modal button {
            background: linear-gradient(to bottom, #f39c12, #e67e22);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 30px;
            cursor: pointer;
            font-weight: bold;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        }
        
        .modal button:hover {
            background: linear-gradient(to bottom, #f5b041, #eb984e);
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
        }
        
        @media (max-width: 768px) {
            .controls, .stats {
                position: relative;
                top: auto;
                left: auto;
                right: auto;
                margin: 10px auto;
                width: 90%;
            }
            
            .game-container {
                display: flex;
                flex-direction: column;
                align-items: center;
            }
        }