/* استایل Toast حرفه‌ای با رنگ‌های سنگین‌تر */
        #toast {
            position: fixed;
            top: 20px;
            right: 20px;
            z-index: 10000;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        
        .toast-item {
            padding: 20px 25px 20px 15px;
            border-radius: 12px;
            color: white;
            font-weight: 500;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
            display: flex;
            align-items: center;
            width: 400px;
            max-width: 90vw;
            animation: toastSlideIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }
        
        /* رنگ‌های سنگین‌تر برای زمینه toast */
        .toast-success {
            background: linear-gradient(135deg, #0a5040, #1c7d5c);
        }
        
        .toast-error {
            background: linear-gradient(135deg, #8b0000, #cc0000);
        }
        
        .toast-warning {
            background: linear-gradient(135deg, #7c5000, #cc8900);
        }
        
        .toast-info {
            background: linear-gradient(135deg, #004080, #0066cc);
        }
        
        /* Progress Bar در لبه */
        .toast-progress-border {
            position: absolute;
            left: 0;
            top: 0;
            height: 100%;
            width: 6px;
            background: rgba(0, 0, 0, 0.3);
        }
        
        .toast-progress {
            position: absolute;
            left: 0;
            top: 0;
            height: 100%;
            width: 6px;
            animation: toastProgress linear forwards;
        }
        
        .toast-success .toast-progress {
            background: linear-gradient(to bottom, #00b09b, #96c93d);
        }
        
        .toast-error .toast-progress {
            background: linear-gradient(to bottom, #ff416c, #ff4b2b);
        }
        
        .toast-warning .toast-progress {
            background: linear-gradient(to bottom, #ff9966, #ff5e62);
        }
        
        .toast-info .toast-progress {
            background: linear-gradient(to bottom, #4e54c8, #8f94fb);
        }
        
        .toast-content {
            flex: 1;
            padding: 0 15px;
        }
        
        .toast-title {
            font-weight: 700;
            margin-bottom: 8px;
            font-size: 1.15rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .toast-message {
            font-size: 1rem;
            line-height: 1.5;
            color: rgba(255, 255, 255, 0.9);
        }
        
        .toast-icon {
            font-size: 24px;
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.15);
        }
        
        .toast-close-btn {
            background: rgba(255, 255, 255, 0.15);
            border: none;
            color: white;
            font-size: 1.2rem;
            cursor: pointer;
            padding: 5px 10px;
            border-radius: 6px;
            transition: all 0.2s;
            flex-shrink: 0;
        }
        
        .toast-close-btn:hover {
            background: rgba(255, 255, 255, 0.25);
        }
        
        @keyframes toastSlideIn {
            from {
                transform: translateX(100%);
                opacity: 0;
            }
            to {
                transform: translateX(0);
                opacity: 1;
            }
        }
        
        @keyframes toastProgress {
            from {
                height: 100%;
            }
            to {
                height: 0%;
            }
        }