:root {
            --tiktok-black: rgba(0, 0, 0, 1);
            --tiktok-gray: #222222;
            --tiktok-light-gray: #f8f8f8;
            --tiktok-text: #ffffff;
            --tiktok-dark-gray: #222;
            --tiktok-piink: #FFFFFF;
            --tiktok-pink: #FF0050;
            --tiktok-cyan: #00F2EA;
            --tiktok-text: #FFFFFF;
                }
                
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background-color: var(--tiktok-black);
            color: var(--tiktok-text);
            line-height: 1.6;
        }
        
        header {
            background-color: var(--tiktok-black);
            padding: 1rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid #333;
            position: sticky;
            top: 0;
            z-index: 100;
        }
        
        .logo {
            display: flex;
            align-items: center;
            font-size: 1.8rem;
            font-weight: bold;
        }
        
        .logo i {
            color: var(--tiktok-pink);
            margin-right: 10px;
        }
        
        .logo span:last-child {
            color: var(--tiktok-pink);
        }
        
        nav ul {
            display: flex;
            list-style: none;
        }
        
        nav ul li {
            margin-left: 1.5rem;
        }
        
        nav ul li a {
            color: var(--tiktok-text);
            text-decoration: none;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            transition: color 0.3s;
        }
        
        nav ul li a:hover {
            color: var(--tiktok-pink);
        }
        
        nav ul li a i {
            margin-right: 8px;
        }
        
        .cart-icon {
            position: relative;
        }
        
        .cart-count {
            position: absolute;
            top: -8px;
            right: -8px;
            background-color: var(--tiktok-pink);
            color: white;
            border-radius: 50%;
            width: 20px;
            height: 20px;
            display: flex;
            justify-content: center;
            align-items: center;
            font-size: 0.75rem;
            font-weight: bold;
        }
        
        .container {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 1rem;
        }
        
        .user-lookup {
            background-color: var(--tiktok-gray);
            border-radius: 10px;
            padding: 1.5rem;
            margin-bottom: 2rem;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
        }
        
        .user-lookup h2 {
            margin-bottom: 1.5rem;
            color: var(--tiktok-piink);
            display: flex;
            align-items: center;
        }
        
        .user-lookup h2 i {
            margin-right: 10px;
        }
        
        .lookup-form {
            display: flex;
            gap: 10px;
            margin-bottom: 1.5rem;
        }
        
        .lookup-form input {
            flex: 1;
            padding: 12px 15px;
            border: none;
            border-radius: 5px;
            background-color: #333;
            color: var(--tiktok-text);
            font-size: 1rem;
        }
        
        .lookup-form input::placeholder {
            color: var(--tiktok-text-secondary);
        }
        
		.lookup-form button {
			background: linear-gradient(to right, #069ad4, #ff416c) !important;
			color: white;
			border: none;
			border-radius: 5px;
			padding: 14px 30px; /* daha belirgin */
			font-size: 1.1rem;  /* daha büyük yazı */
			font-weight: bold;
			cursor: pointer;
			transition: background-color 0.3s;
			flex-shrink: 0; /* küçülmesini engelle */
		}

        
        .lookup-form button:hover {
            background: linear-gradient(to right, #069ad4, #ff416c) !important;
        }
        
        .user-info {
            display: none;
            background-color: #333;
            border-radius: 10px;
            padding: 1.5rem;
            margin-top: 1.5rem;
        }
        
        .user-info.active {
            display: block;
            animation: fadeIn 0.5s ease;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .user-header {
            display: flex;
            align-items: center;
            margin-bottom: 1.5rem;
            border-bottom: 1px solid #444;
            padding-bottom: 1rem;
        }
        
        .avatar {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background-color: #555;
            margin-right: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }
        
        .avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .avatar-placeholder {
            font-size: 2rem;
            color: #888;
        }
        
        .user-details h3 {
            font-size: 1.5rem;
            margin-bottom: 5px;
        }
        
        .user-details p {
            color: var(--tiktok-text-secondary);
            margin-bottom: 10px;
        }
        
        .user-stats {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
            gap: 15px;
            margin-bottom: 1.5rem;
        }
        
        .stat-card {
            background-color: var(--tiktok-gray);
            border-radius: 8px;
            padding: 15px;
            text-align: center;
        }
        
        .stat-card h4 {
            font-size: 0.9rem;
            color: var(--tiktok-text-secondary);
            margin-bottom: 5px;
        }
        
        .stat-card p {
            font-size: 1.4rem;
            font-weight: bold;
            color: var(--tiktok-pink);
        }
        
        .user-bio {
            background-color: var(--tiktok-gray);
            border-radius: 8px;
            padding: 15px;
            margin-bottom: 1.5rem;
        }
        
        .user-bio p {
            line-height: 1.6;
        }
        
        .cart-container {
            background-color: var(--tiktok-gray);
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
        }
        
        .cart-header {
            padding: 1.5rem;
            background: linear-gradient(to right, #069ad4, #ff416c);
            border-bottom: 1px solid #333;
        }
        
        .cart-header h2 {
            margin-bottom: 0.5rem;
        }
        
        .cart-header p {
            color: var(--tiktok-text-secondary);
        }
        
        .cart-items {
            padding: 1.5rem;
            min-height: 200px;
        }
        
        .empty-cart {
            text-align: center;
            padding: 50px 20px;
            color: var(--tiktok-text-secondary);
        }
        
        .cart-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
            border-bottom: 1px solid #333;
        }
        
        .cart-item-details h4 {
            margin-bottom: 5px;
        }
        
        .cart-item-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .quantity-btn {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            border: none;
            background-color: #333;
            color: white;
            font-weight: bold;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .quantity-btn:hover {
            background-color: #444;
        }
        
        .remove-item {
            background: none;
            border: none;
            color: var(--tiktok-text-secondary);
            cursor: pointer;
            margin-left: 10px;
        }
        
        .remove-item:hover {
            color: var(--tiktok-pink);
        }
        
        .cart-total {
            display: flex;
            justify-content: space-between;
            padding: 1.5rem;
            font-size: 1.2rem;
            font-weight: bold;
            border-top: 1px solid #333;
            border-bottom: 1px solid #333;
        }
        
        .tiktok-username {
            padding: 1.5rem;
        }
        
        .tiktok-username label {
            display: block;
            margin-bottom: 8px;
        }
        
        .tiktok-username input {
            width: 100%;
            padding: 12px 15px;
            border: none;
            border-radius: 5px;
            background-color: #333;
            color: var(--tiktok-text);
            font-size: 1rem;
        }
        
        .checkout-btn {
            display: block;
            width: calc(100% - 3rem);
            margin: 1.5rem;
            padding: 15px;
            background: linear-gradient(to right, #069ad4, #ff416c);
            color: white;
            border: none;
            border-radius: 5px;
            font-size: 1.1rem;
            font-weight: bold;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        
        .checkout-btn:hover {
            background: linear-gradient(to right, #069ad4, #ff416c);
        }
        
        .checkout-btn:disabled {
            background-color: #555;
            cursor: not-allowed;
        }
        
        footer {
            background-color: var(--tiktok-black);
            padding: 3rem 0 2rem;
            border-top: 1px solid #333;
            margin-top: 2rem;
        }
        
        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        
        .footer-column h3 {
            color: var(--tiktok-pink);
            margin-bottom: 1rem;
            font-size: 1.2rem;
        }
        
        .footer-column ul {
            list-style: none;
        }
        
        .footer-column ul li {
            margin-bottom: 0.5rem;
        }
        
        .footer-column ul li a {
            color: var(--tiktok-text-secondary);
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-column ul li a:hover {
            color: var(--tiktok-pink);
        }
        
        .copyright {
            text-align: center;
            padding-top: 2rem;
            color: var(--tiktok-text-secondary);
            font-size: 0.9rem;
        }
        
        .loading {
            display: flex;
            justify-content: center;
            padding: 20px;
        }
        
        .spinner {
            width: 40px;
            height: 40px;
            border: 4px solid rgba(255, 255, 255, 0.3);
            border-radius: 50%;
            border-top-color: var(--tiktok-pink);
            animation: spin 1s linear infinite;
        }
        
        @keyframes spin {
            to { transform: rotate(360deg); }
        }
        
        .error-message {
            background-color: #ff3b30;
            color: white;
            padding: 15px;
            border-radius: 5px;
            margin-bottom: 20px;
            text-align: center;
        }
        
        @media (max-width: 768px) {
            header {
                flex-direction: column;
                text-align: center;
                padding: 1rem;
            }
            
            nav ul {
                margin-top: 1rem;
                justify-content: center;
            }
            
            .lookup-form {
                flex-direction: column;
            }
            
            .user-stats {
                grid-template-columns: 1fr 1fr;
            }
        }