body {
        min-height: 100vh;
        display: flex;
        flex-direction: column;
        }

        main {
            flex: 1;
        }

          /* order track css */
        
        .track-section {
            background-color: #ffffff;
            padding: 40px 0;
        }

        .track-card {
            background: #ffffff;
            border-radius: 16px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
            padding: 40px;
        }

        .track-card h1 {
            font-size: 1.9rem;
            font-weight: 700;
            text-align: center;
            margin-bottom: 30px;
            color: #1a1a1a;
        }

        .form-label-custom {
            font-size: 0.875rem;
            font-weight: 600;
            color: #374151;
            margin-bottom: 6px;
        }

        .form-control-custom {
            border: 2px solid #d1d5db;
            border-radius: 10px;
            padding: 12px 16px;
            font-size: 0.95rem;
            transition: border-color 0.3s;
            width: 100%;
        }

        .form-control-custom:focus {
            outline: none;
            border-color: #ec4899;
            box-shadow: 0 0 0 3px rgba(236, 72, 153, 0.15);
        }

        .btn-track {
            background: linear-gradient(to right, #ec4899, #ef4444);
            border: none;
            border-radius: 10px;
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            padding: 13px;
            width: 100%;
            transition: all 0.3s;
        }

        .btn-track:hover {
            background: linear-gradient(to right, #db2777, #dc2626);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 15px rgba(236, 72, 153, 0.4);
        }

        /* WhatsApp Button */
        .whatsapp-btn {
            position: fixed;
            bottom: 24px;
            right: 24px;
            background-color: #25d366;
            color: white;
            width: 55px;
            height: 55px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            box-shadow: 0 4px 15px rgba(37, 211, 102, 0.5);
            text-decoration: none;
            z-index: 999;
            transition: transform 0.3s;
        }

        .whatsapp-btn:hover {
            transform: scale(1.1);
            color: white;
        }

        @media (max-width: 576px) {
            .track-card {
                padding: 24px 18px;
            }

            .track-card h1 {
                font-size: 1.5rem;
            }
        }