.installment-options{background:#f8f9fa;border:1px solid #dee2e6;border-radius:8px;padding:20px;margin:20px 0}.installment-options h4{margin:0 0 15px 0;color:#28a745;font-size:18px;font-weight:600}.installment-selection label{display:block;margin:10px 0;padding:10px 15px;background:#fff;border:2px solid #e9ecef;border-radius:6px;cursor:pointer;transition:all 0.3s ease}.installment-selection label:hover{border-color:#28a745;background:#f8fff9}.installment-selection input[type="radio"]{margin-right:10px}.installment-selection input[type="radio"]:checked+span{font-weight:600;color:#28a745}.installment-selection label:has(input:checked){border-color:#28a745}.installment-schedule{margin-top:20px;border-top:1px solid #dee2e6;padding-top:20px}.installment-schedule table{width:100%;border-collapse:collapse}.installment-schedule th,.installment-schedule td{padding:8px;text-align:left;border-bottom:1px solid #ddd}.installment-schedule th{background:#f1f1f1}.installment-info{font-size:14px;line-height:1.6}.installment-info h4{font-size:16px;margin-bottom:10px}.installment-admin-table{width:100%;border-collapse:collapse;margin-top:20px}.installment-admin-table th,.installment-admin-table td{padding:12px;text-align:left;border-bottom:1px solid #ddd}.installment-admin-table th{background:#f1f1f1;font-weight:700}.status-pending{color:#856404;background:#fff3cd;padding:3px 8px;border-radius:3px;font-size:12px}.status-paid{color:#155724;background:#d4edda;padding:3px 8px;border-radius:3px;font-size:12px}.status-overdue{color:#721c24;background:#f8d7da;padding:3px 8px;border-radius:3px;font-size:12px}.mark-paid-btn{background:#28a745;color:#fff;border:none;padding:5px 10px;text-align:center;text-decoration:none;display:inline-block;font-size:12px;margin:4px 2px;cursor:pointer;border-radius:4px}.installment-progress{background:#e0e0e0;border-radius:5px;height:10px;margin-top:5px}.installment-progress-bar{background:#4CAF50;height:100%;border-radius:5px;width:0%}