@font-face { 
                font-family: 'Ravi-bold'; 
                src: url('fonts/Ravi-Bold.woff') format('woff'), 
                     url('fonts/Ravi-Bold.woff2') format('woff2'); 
                font-weight: bold; 
            }
            
            @font-face { 
                font-family: 'Ravi-re'; 
                src: url('fonts/Ravi-Regular.woff2') format('woff2'), 
                     url('fonts/Ravi-Regular.woff') format('woff'); 
                font-weight: normal; 
            }
            
            * {
                margin: 0;
                padding: 0;
                box-sizing: border-box;
            }
            
            body {
                font-family: 'Ravi-re', 'Vazirmatn', sans-serif;
                background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
                min-height: 100vh;
                display: flex;
                align-items: center;
                justify-content: center;
                padding: 20px;
            }
            
            .error-container {
                max-width: 600px;
                width: 100%;
                background: rgba(255, 255, 255, 0.95);
                backdrop-filter: blur(10px);
                border-radius: 30px;
                padding: 40px 30px;
                box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
                text-align: center;
                animation: slideUp 0.6s ease;
            }
            
            @keyframes slideUp {
                from {
                    opacity: 0;
                    transform: translateY(30px);
                }
                to {
                    opacity: 1;
                    transform: translateY(0);
                }
            }
            
            .error-icon {
                width: 100px;
                height: 100px;
                background: linear-gradient(135deg, #f43f5e 0%, #e11d48 100%);
                border-radius: 50%;
                display: flex;
                align-items: center;
                justify-content: center;
                margin: 0 auto 25px;
                box-shadow: 0 10px 30px rgba(225, 29, 72, 0.4);
            }
            
            .error-icon i {
                font-size: 50px;
                color: white;
            }
            
            .error-title {
                font-family: 'Ravi-bold', sans-serif;
                font-size: 48px;
                background: linear-gradient(135deg, #f43f5e 0%, #e11d48 100%);
                -webkit-background-clip: text;
                -webkit-text-fill-color: transparent;
                background-clip: text;
                margin-bottom: 15px;
                line-height: 1.2;
            }
            
            .error-message {
                font-size: 18px;
                color: #1e293b;
                line-height: 1.8;
                margin-bottom: 30px;
                padding: 0 20px;
            }
            
            .support-badge {
                background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
                padding: 15px 20px;
                border-radius: 50px;
                display: inline-flex;
                align-items: center;
                gap: 12px;
                margin-bottom: 30px;
                border: 2px solid rgba(100, 116, 139, 0.1);
            }
            
            .support-badge i {
                color: #3b82f6;
                font-size: 20px;
            }
            
            .support-badge span {
                color: #1e293b;
                font-size: 16px;
            }
            
            .support-badge a {
                color: #3b82f6;
                text-decoration: none;
                font-weight: bold;
                direction: ltr;
                display: inline-block;
            }
            
            .back-btn {
                background: linear-gradient(135deg, #334155 0%, #1e293b 100%);
                color: white;
                border: none;
                padding: 15px 35px;
                border-radius: 50px;
                font-family: 'Ravi-bold', sans-serif;
                font-size: 16px;
                display: inline-flex;
                align-items: center;
                gap: 10px;
                cursor: pointer;
                transition: all 0.3s ease;
                box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
            }
            
            .back-btn:hover {
                transform: translateY(-3px);
                box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
                background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
            }
            
            .back-btn:active {
                transform: translateY(0);
            }
            
            @media (max-width: 768px) {
                .error-container {
                    padding: 30px 20px;
                }
                
                .error-icon {
                    width: 80px;
                    height: 80px;
                }
                
                .error-icon i {
                    font-size: 40px;
                }
                
                .error-title {
                    font-size: 36px;
                }
                
                .error-message {
                    font-size: 16px;
                    padding: 0 10px;
                }
                
                .support-badge {
                    padding: 12px 15px;
                    flex-wrap: wrap;
                    justify-content: center;
                }
                
                .back-btn {
                    padding: 12px 28px;
                    font-size: 14px;
                }
            }