/* Custom Styles & Animations */
        @import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Roboto:wght@300;400;700&display=swap');

        :root {
            --neon-blue: #00f3ff;
            --neon-pink: #ff00ff;
            --neon-green: #00ff9d;
            --lane-height: 60px;
        }

        body {
            font-family: 'Roboto', sans-serif;
            background-color: #0f172a;
            color: #e2e8f0;
            overflow-x: hidden;
            touch-action: manipulation;
            user-select: none;
            -webkit-user-select: none;
        }

        h1, h2, .digital-font {
            font-family: 'Orbitron', sans-serif;
        }

        /* Track Styles */
        .track-container {
            background: repeating-linear-gradient(
                90deg,
                #1e293b,
                #1e293b 40px,
                #253349 40px,
                #253349 80px
            );
            position: relative;
            overflow: hidden;
            border-right: 5px solid #fbbf24; /* Finish line */
            box-shadow: inset 0 0 20px #000;
        }

        .lane {
            height: var(--lane-height);
            border-bottom: 2px dashed #475569;
            position: relative;
            display: flex;
            align-items: center;
        }

        .lane:last-child {
            border-bottom: none;
        }

        /* Car Element */
        .car {
            position: absolute;
            left: 0;
            transition: transform 0.1s linear; 
            filter: drop-shadow(2px 4px 6px rgba(0,0,0,0.5));
            z-index: 10;
            width: 80px; 
            display: flex;
            justify-content: center;
            align-items: center;
        }
        
        .finish-flag {
            position: absolute;
            right: 0;
            top: 0;
            bottom: 0;
            width: 20px;
            background-image: linear-gradient(45deg, #000 25%, transparent 25%), 
                              linear-gradient(-45deg, #000 25%, transparent 25%), 
                              linear-gradient(45deg, transparent 75%, #000 75%), 
                              linear-gradient(-45deg, transparent 75%, #000 75%);
            background-size: 20px 20px;
            background-color: #fff;
            opacity: 0.3;
            z-index: 1;
        }

        .chip-btn {
            transition: all 0.2s;
            user-select: none;
        }
        .chip-btn:active {
            transform: scale(0.95);
        }

        .winner-glow {
            animation: pulse-gold 1s infinite;
        }

        @keyframes pulse-gold {
            0% { box-shadow: 0 0 0 0 rgba(251, 191, 36, 0.7); }
            70% { box-shadow: 0 0 0 10px rgba(251, 191, 36, 0); }
            100% { box-shadow: 0 0 0 0 rgba(251, 191, 36, 0); }
        }

        .modal-overlay {
            position: fixed;
            top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(0,0,0,0.85);
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 50;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s;
        }
        .modal-overlay.active {
            opacity: 1;
            pointer-events: all;
        }

        #confetti-canvas {
            position: fixed;
            top: 0; left: 0;
            width: 100%; height: 100%;
            pointer-events: none;
            z-index: 60;
        }

        /* --- NEW ANIMATIONS FOR MENU --- */
        @keyframes float-car {
            0%, 100% { transform: translateY(0px) rotate(0deg); }
            50% { transform: translateY(-8px) rotate(1deg); }
        }
        .animate-float {
            animation: float-car 3s ease-in-out infinite;
        }

        /* Nitro Button Animation */
        @keyframes nitro-shake {
            0% { transform: translate(1px, 1px) rotate(0deg) scale(1.05); }
            10% { transform: translate(-1px, -2px) rotate(-1deg) scale(1.05); }
            20% { transform: translate(-3px, 0px) rotate(1deg) scale(1.05); }
            30% { transform: translate(3px, 2px) rotate(0deg) scale(1.05); }
            40% { transform: translate(1px, -1px) rotate(1deg) scale(1.05); }
            50% { transform: translate(-1px, 2px) rotate(-1deg) scale(1.05); }
            60% { transform: translate(-3px, 1px) rotate(0deg) scale(1.05); }
            70% { transform: translate(3px, 1px) rotate(-1deg) scale(1.05); }
            80% { transform: translate(-1px, -1px) rotate(1deg) scale(1.05); }
            90% { transform: translate(1px, 2px) rotate(0deg) scale(1.05); }
            100% { transform: translate(1px, -2px) rotate(-1deg) scale(1.05); }
        }

        .nitro-btn {
            position: relative;
            background: linear-gradient(135deg, #ff4d00, #ff0055);
            transition: all 0.3s ease;
            box-shadow: 0 5px 15px rgba(0,0,0,0.5), inset 0 2px 0 rgba(255,255,255,0.3);
            text-shadow: 1px 1px 0px rgba(0,0,0,0.3);
            overflow: visible;
        }

        .nitro-btn::before {
            content: '';
            position: absolute;
            top: -5px; left: -5px; right: -5px; bottom: -5px;
            background: linear-gradient(45deg, #ff0000, #ffae00, #ffff00, #ff0000);
            background-size: 400%;
            z-index: -1;
            filter: blur(15px);
            opacity: 0;
            transition: opacity 0.3s ease;
            border-radius: 9999px;
            animation: glowing 20s linear infinite;
        }

        .nitro-btn:hover {
            animation: nitro-shake 0.5s infinite;
            background: linear-gradient(135deg, #ff6a00, #ff0055);
            letter-spacing: 0.1em;
        }

        .nitro-btn:hover::before {
            opacity: 1;
        }

        @keyframes glowing {
            0% { background-position: 0 0; }
            50% { background-position: 400% 0; }
            100% { background-position: 0 0; }
        }

        @media (max-width: 768px) {
            :root { --lane-height: 50px; }
            .car { width: 60px; }
        }