body, html {
            margin: 0;
            padding: 0;
            width: 100%;
            height: 100%;
            overflow: hidden;
            background-color: #0ea5e9;
            touch-action: none;
            user-select: none;
            -webkit-user-select: none;
        }
        
        #game-canvas {
            display: block;
            width: 100%;
            height: 100%;
            position: absolute;
            top: 0;
            left: 0;
            z-index: 1;
        }

        .ui-layer {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 10;
            pointer-events: none;
        }

        .interactive {
            pointer-events: auto;
            cursor: pointer;
        }

        .fruit-btn {
            transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            backdrop-filter: blur(8px);
        }
        .fruit-btn.active {
            border-color: #fde047;
            transform: scale(1.15) translateY(-5px);
            box-shadow: 0 10px 25px rgba(253, 224, 71, 0.4);
            background-color: rgba(255, 255, 255, 0.25);
        }
        .fruit-btn.locked {
            opacity: 0.45;
            filter: grayscale(0.55);
        }
        .fruit-btn.next-buy {
            opacity: 1;
            filter: none;
            box-shadow: 0 0 0 2px rgba(253, 224, 71, 0.45);
        }

        @keyframes popScore {
            0% { transform: translate(-50%, 0) scale(0.5); opacity: 0; }
            50% { transform: translate(-50%, -30px) scale(1.3); opacity: 1; }
            100% { transform: translate(-50%, -60px) scale(1); opacity: 0; }
        }
        .floating-score {
            position: absolute;
            color: #fde047;
            font-weight: 900;
            font-size: 2.5rem;
            text-shadow: 2px 2px 0 #000, -1px -1px 0 #000, 1px -1px 0 #000, -1px 1px 0 #000, 0 0 10px rgba(250,204,21,0.8);
            animation: popScore 1s ease-out forwards;
            pointer-events: none;
            z-index: 20;
        }

        #wind-arrow {
            transition: transform 0.5s ease-in-out;
        }