/* Critical CSS */
        body {
            font-family: 'Inter', system-ui, -apple-system, sans-serif;
            background-color: #f8fafc;
            -webkit-font-smoothing: antialiased;
            margin: 0;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        
        .container {
            max-width: 800px;
            width: 100%;
            background: white;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            padding: 30px;
            text-align: center;
        }
        
        h1 {
            color: #2c3e50;
            margin-bottom: 10px;
        }
        
        p {
            color: #7f8c8d;
            margin-bottom: 30px;
            line-height: 1.6;
        }
        
        .link-btn {
            display: inline-block;
            background: linear-gradient(135deg, #3498db, #2980b9);
            color: white;
            text-decoration: none;
            padding: 14px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 18px;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        
        .link-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 20px rgba(52, 152, 219, 0.4);
            background: linear-gradient(135deg, #2980b9, #3498db);
        }
        
        .link-btn:active {
            transform: translateY(1px);
        }
        
        .features {
            display: flex;
            justify-content: space-around;
            margin-top: 40px;
            flex-wrap: wrap;
        }
        
        .feature {
            flex: 1;
            min-width: 200px;
            margin: 10px;
            padding: 20px;
            background: #f8f9fa;
            border-radius: 8px;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
        }
        
        .feature h3 {
            color: #2c3e50;
            margin-bottom: 10px;
        }
        
        .feature p {
            color: #7f8c8d;
            font-size: 14px;
            margin-bottom: 0;
        }
        
        
        /* Loading spinner */
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        .spinner {
            border: 4px solid rgba(0,0,0,0.1);
            border-radius: 50%;
            border-top: 4px solid #8cc152;
            width: 40px;
            height: 40px;
            animation: spin 1s linear infinite;
        }
        
        /* Input focus styles */
        .input-field:focus {
            border-color: #3b82f6;
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
            outline: none;
        }
        
        /* Button hover effects */
        .btn-primary:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
        }
        
        /* Card hover effects */
        .product-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
        }
        
        /* Modal styles */
        .gift-modal {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0,0,0,0.7);
            z-index: 9999;
            display: none;
            overflow-y: auto;
        }
        
        /* Toast notification */
        .toast {
            transition: all 0.3s ease;
            transform: translateY(20px);
            opacity: 0;
        }
        
        .toast.show {
            transform: translateY(0);
            opacity: 1;
        }
        
        /* Floating label pattern */
        .floating-label-group {
            position: relative;
        }
        
        .floating-label {
            position: absolute;
            pointer-events: none;
            left: 12px;
            top: 11px;
            transition: all 0.2s ease;
            background: white;
            padding: 0 4px;
        }
        
        .floating-input:focus ~ .floating-label,
        .floating-input:not(:placeholder-shown) ~ .floating-label {
            top: -8px;
            font-size: 0.75rem;
            color: #3b82f6;
        }
        
        /* Performance optimizations */
        .will-change-transform {
            will-change: transform;
        }
        
        /* Print styles */
        @media print {
            .no-print {
                display: none !important;
            }
        }