/* Reset some default styles */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: #000000;
            color: #333;
            padding: 20px;
        }

        /* Navbar styles */
        .navbar {
            background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 50%, #0a0a0a 100%);
            padding: 25px 50px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 2px solid #00ff88;
            box-shadow: 0 0 20px rgba(0, 255, 136, 0.3), 0 8px 32px rgba(0, 0, 0, 0.8);
        }

        .navbar .logo {
            font-size: 32px;
            font-weight: 900;
            color: #00ff88;
            text-shadow: 0 0 20px #00ff88, 0 0 40px #00ff88, 0 0 60px #00ff88;
            letter-spacing: 2px;
            position: relative;
            text-transform: uppercase;
            font-family: 'Courier New', monospace;
            animation: pulse 2s ease-in-out infinite alternate;
        }

        @keyframes pulse {
            0% { 
                text-shadow: 0 0 20px #00ff88, 0 0 40px #00ff88, 0 0 60px #00ff88;
            }
            100% { 
                text-shadow: 0 0 30px #00ff88, 0 0 60px #00ff88, 0 0 90px #00ff88;
            }
        }

        .navbar .logo::after {
            content: '_';
            animation: blink 1s infinite;
        }

        @keyframes blink {
            0%, 50% { opacity: 1; }
            51%, 100% { opacity: 0; }
        }

        .navbar ul {
            list-style: none;
            display: flex;
            gap: 30px;
            margin: 0;
            padding: 0;
        }

        .navbar ul li {
            position: relative;
        }

        .navbar ul li a {
            text-decoration: none;
            color: #ffffff;
            font-weight: 600;
            font-size: 16px;
            padding: 12px 24px;
            border: 2px solid transparent;
            border-radius: 0;
            transition: all 0.3s ease;
            position: relative;
            text-transform: uppercase;
            letter-spacing: 1px;
            font-family: 'Courier New', monospace;
            background: linear-gradient(45deg, #1a1a1a, #2a2a2a);
            clip-path: polygon(10px 0%, 100% 0%, calc(100% - 10px) 100%, 0% 100%);
        }

        .navbar ul li a::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(45deg, #ff0080, #00ff88);
            z-index: -1;
            transition: all 0.3s ease;
            opacity: 0;
        }

        .navbar ul li a:hover::before {
            opacity: 1;
        }

        .navbar ul li a:hover {
            color: #000000;
            transform: translateY(-5px);
            box-shadow: 0 0 30px rgba(255, 0, 128, 0.8), 0 0 60px rgba(0, 255, 136, 0.8);
            text-shadow: none;
        }

        .navbar ul li a::after {
            content: '';
            position: absolute;
            top: -2px;
            left: -2px;
            right: -2px;
            bottom: -2px;
            background: linear-gradient(45deg, #ff0080, #00ff88, #0080ff, #ff0080);
            z-index: -2;
            filter: blur(10px);
            opacity: 0;
            transition: all 0.3s ease;
            clip-path: polygon(10px 0%, 100% 0%, calc(100% - 10px) 100%, 0% 100%);
        }

        .navbar ul li a:hover::after {
            opacity: 1;
            animation: rotate 2s linear infinite;
        }

        @keyframes rotate {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        /* Special effects for active link */
        .navbar ul li a.active {
            background: linear-gradient(45deg, #ff0080, #00ff88);
            color: #000000;
            box-shadow: 0 0 20px rgba(255, 0, 128, 0.5);
            animation: activeGlow 2s ease-in-out infinite alternate;
        }

        @keyframes activeGlow {
            0% { box-shadow: 0 0 20px rgba(255, 0, 128, 0.5); }
            100% { box-shadow: 0 0 40px rgba(255, 0, 128, 0.8), 0 0 80px rgba(0, 255, 136, 0.4); }
        }

        /* Mobile menu toggle */
        .navbar .menu-toggle {
            display: none;
            flex-direction: column;
            cursor: pointer;
            padding: 10px;
        }

        .navbar .menu-toggle span {
            width: 25px;
            height: 3px;
            background: linear-gradient(45deg, #ff0080, #00ff88);
            margin: 3px 0;
            transition: 0.3s;
            box-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
        }

        /* Glitch effect on logo hover */
        .navbar .logo:hover {
            animation: glitch 0.5s;
        }

        @keyframes glitch {
            0%, 100% { transform: translate(0); }
            10% { transform: translate(-2px, -2px); }
            20% { transform: translate(2px, 2px); }
            30% { transform: translate(-2px, 2px); }
            40% { transform: translate(2px, -2px); }
            50% { transform: translate(-2px, -2px); }
            60% { transform: translate(2px, 2px); }
            70% { transform: translate(-2px, 2px); }
            80% { transform: translate(2px, -2px); }
            90% { transform: translate(-2px, -2px); }
        }

        /* Headings */
        h1, h2 {
            color: #ffffff;
            text-align: center;
            margin: 30px 0 20px;
        }

        /* Product Grid */
        .product-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            padding: 10px;
            max-width: 1200px;
            margin: 0 auto;
        }

        /* Product Card */
        .product {
            background: #454545c8;
            border-radius: 10px;
            box-shadow: 0 4px 20px rgb(117, 117, 117);
            padding: 15px;
            text-align: center;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }

        .product:hover {
            transform: translateY(-6px);
            box-shadow: 0 10px 25px rgba(0, 255, 136, 0.3);
        }

        .product img {
            width: 100%;
            height: 150px;
            object-fit: cover;
            border-radius: 8px;
            margin-bottom: 10px;
            background-color: #2a2a2a;
        }

        .product h3 {
            margin: 10px 0;
            color: #00bcd4;
            font-size: 1.2rem;
        }

        .product p {
            margin: 5px 0;
            color: #ffffff;
            font-size: 1rem;
            font-weight: 500;
        }

        .product input[type="number"] {
            padding: 6px;
            font-size: 1rem;
            text-align: center;
            border: 1px solid #ccc;
            border-radius: 5px;
            margin: 10px 0;
            background-color: #2a2a2a;
            color: #ffffff;
        }

        /* Product Button */
        .product button {
            background-color: #ff6b35;
            color: #fff;
            border: none;
            padding: 10px 18px;
            font-size: 0.95rem;
            border-radius: 6px;
            cursor: pointer;
            transition: background-color 0.3s;
            margin: 5px;
        }

        .product button:hover {
            background-color: #e65c2d;
        }

        /* Total Section */
        .total-section {
            max-width: 600px;
            margin: 40px auto;
            background-color: #ffffff;
            padding: 25px;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        }

        .total-section h2 {
            text-align: center;
            color: #0097a7;
            margin-bottom: 20px;
        }

        .summary-items {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .summary-row {
            display: flex;
            justify-content: space-between;
            font-size: 16px;
            padding: 5px 0;
        }

        .summary-total {
            display: flex;
            justify-content: space-between;
            font-size: 18px;
            font-weight: bold;
            margin-top: 15px;
        }

        /* Payment form */
        .payment-form {
            max-width: 500px;
            margin: 40px auto;
            background: white;
            padding: 25px;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .payment-form input {
            padding: 12px;
            font-size: 16px;
            border: 1px solid #aeaaaa;
            border-radius: 8px;
            transition: border-color 0.3s;
        }

        .payment-form input:focus {
            border-color: #00bcd4;
            outline: none;
        }

        .payment-form button {
            background-color: #00bcd4;
            color: white;
            font-size: 18px;
            padding: 12px;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            transition: background-color 0.3s;
        }

        .payment-form button:hover {
            background-color: #0097a7;
        }

        .success-container {
            max-width: 600px;
            margin: 80px auto;
            text-align: center;
            background: #e6fff2;
            padding: 40px;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }

        .success-container h1 {
            color: #28a745;
            font-size: 2rem;
            margin-bottom: 20px;
        }

        .success-container p {
            font-size: 1.1rem;
            margin-bottom: 30px;
        }

        .hidden {
            display: none;
        }

        /* Responsive design */
        @media (max-width: 768px) {
            .navbar {
                padding: 20px 30px;
            }
            
            .navbar .logo {
                font-size: 24px;
            }
            
            .navbar .menu-toggle {
                display: flex;
            }
            
            .navbar ul {
                position: fixed;
                top: 90px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 90px);
                background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 50%, #0a0a0a 100%);
                flex-direction: column;
                justify-content: flex-start;
                align-items: center;
                padding-top: 50px;
                gap: 25px;
                transition: left 0.5s ease;
                border-right: 2px solid #00ff88;
                box-shadow: 0 0 50px rgba(0, 255, 136, 0.3);
            }
            
            .navbar ul.active {
                left: 0;
            }
            
            .navbar ul li a {
                font-size: 18px;
                padding: 15px 40px;
                width: 280px;
                text-align: center;
            }
            
            .navbar .menu-toggle.active span:nth-child(1) {
                transform: rotate(-45deg) translate(-6px, 6px);
            }
            
            .navbar .menu-toggle.active span:nth-child(2) {
                opacity: 0;
            }
            
            .navbar .menu-toggle.active span:nth-child(3) {
                transform: rotate(45deg) translate(-6px, -6px);
            }
        }

        @media (max-width: 600px) {
            .product-grid {
                grid-template-columns: 1fr;
            }

            .payment-form {
                margin: 20px;
            }
        }

        @media (max-width: 480px) {
            .navbar {
                padding: 15px 20px;
            }
            
            .navbar .logo {
                font-size: 20px;
            }
            
            .navbar ul li a {
                width: 250px;
                font-size: 16px;
            }
        }