.tracking-header {
            background-color: #273171;
            color: white;
            padding: 10px 20px;
            font-weight: bold;
        }
        .tracking-header a {
            color: white;
            text-decoration: none;
        }
        #awbNoInput {
            width: 100%; /* Set width to 100% for responsiveness */
            max-width: 400px; /* Max width for larger screens */
            height: 50px;
        }
        .status {
            color: green;
            font-weight: bold;
            font-size: 1.5rem;
        }
        /* Timeline */
        .timeline {
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: relative;
            padding: 20px 0;
        }
        .timeline::before {
            content: '';
            position: absolute;
            top: 34%;
            left: 5%;
            height: 4px;
            background-color: #8bc34a;
            z-index: 0;
            width: var(--timeline-width, 0%);
            transition: width 0.5s ease-in-out;
        }
        .timeline-step {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            width: 100%;
            max-width: 150px;
            margin-bottom: 15px;
            position: relative;
            z-index: 1;
        }
        .timeline-step i {
            background-color: #e0e0e0;
            color: white;
            padding: 10px;
            border-radius: 50%;
            font-size: 1.5rem;
        }
        .timeline-step.active i {
            background-color: #45a049;
        }
        /* Scrollbar for Shipment History Table */
        .shipment-history-container {
            max-height: 300px;
            overflow-y: auto;
            border: 1px solid #ddd;
        }
        #Del {
            display: none;
        }

        /* Preloader */
        #preloader {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(255, 255, 255, 0.7) url('https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/img/spinner.svg') no-repeat center center;
            z-index: 9999;
            display: none;
        }

        @media (max-width: 768px) {
            .timeline {
                flex-direction: column;
                align-items: center;
            }
            .timeline::before {
                display: none;
            }
            #awbNoInput {
                max-width: 100%; /* Full width on small screens */
            }
            .shipment-history-container {
                max-height: 200px;
            }
            .btn {
                width: 100%; /* Make the button full width on small screens */
            }
        }