 <style>

       .tabs {
            display: flex;
            background: #f8f9fa;
            padding: 20px;
            gap: 10px;
        }
        .tab {
            flex: 1;
            padding: 15px;
            border: none;
            background: white;
            border-radius: 10px;
            cursor: pointer;
            font-weight: bold;
            transition: all 0.3s;
        }
        .tab.active {
            background: #667eea;
            color: white;
        }
        .form-content {
            padding: 40px;
        }
        .form-section {
            display: none;
        }
        .form-section.active {
            display: block;
        }
        .form-group {
            margin-bottom: 20px;
        }
         .form-section {
            max-width: 500px;
            margin: 0 auto;
            background: white;
            padding: 25px;
            border-radius: 12px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
        }

        .form-group {
            margin-bottom: 12px;
        }

        label {
            display: block;
            margin-bottom: 4px;
            font-weight: 600;
            font-size: 0.9rem;
            color: #333;
        }

        label .required {
            color: #ff0000;
            font-weight: bold;
        }

        input {
            width: 100%;
            padding: 8px 12px;
            border: 1px solid #ddd;
            border-radius: 6px;
            font-size: 0.95rem;
            transition: border-color 0.3s;
        }

        input:focus {
            outline: none;
            border-color: #008000;
        }

        .row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin-bottom: 12px;
        }
        .total-box {
            background: #C0FFC0;
            padding: 10px;
            border-radius: 10px;
            margin: 10px 0;
            text-align: center;
        }

        .total-box div:first-child {
            font-size: 0.9rem;
            color: #666;
            margin-bottom: 5px;
        }

        .total-box .amount {
            font-size: 1.3rem;
            font-weight: bold;
            color: #008000;
        }

        .btn {
            width: 100%;
            padding: 12px;
            background: linear-gradient(135deg, #008000 0%, #006000 100%);
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s;
            margin-top: 10px;
        }

        .btn:hover {
            background: linear-gradient(135deg, #009000 0%, #007000 100%);
            transform: translateY(-2px);
            box-shadow: 0 4px 10px rgba(0, 128, 0, 0.3);
        }

        @media screen and (max-width: 768px) {
            .row {
                grid-template-columns: 1fr;
            }
        }
    </style>
