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input:disabled{background-color:#f0f0f0;cursor:not-allowed}.checkbox-group{display:flex;flex-direction:column;gap:.5rem}.checkbox-group label{display:flex;align-items:center;gap:.75rem;font-weight:600;cursor:pointer}.checkbox-group input[type=checkbox]{width:1.2rem;height:1.2rem;cursor:pointer;accent-color:var(--primary-color)}.fee-breakdown{font-size:.9rem;color:var(--secondary-color);margin-left:2.2rem;margin-top:.25rem}.total-display{background-color:#f0f9ff;border:1px solid #bfdbfe;border-radius:4px;padding:1rem;margin-top:.5rem}.total-display .amount{font-weight:700;font-size:1.1rem;color:var(--primary-color)}.total-display .breakdown{font-size:.9rem;color:var(--secondary-color);margin-top:.5rem}.error-message{background-color:#fee2e2;border:1px solid #fecaca;color:#991b1b;padding:.75rem;border-radius:4px;font-size:.95rem}.success-message{background-color:#dcfce7;border:1px solid #bbf7d0;color:#166534;padding:.75rem;border-radius:4px;font-size:.95rem}.btn{padding:.75rem 1.5rem;border:none;border-radius:4px;font-weight:600;font-size:1rem;cursor:pointer;transition:all .3s ease;font-family:inherit}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover:not(:disabled){background-color:#1e40af;box-shadow:0 2px 8px #2563eb4d}.btn-primary:disabled{background-color:#cbd5e1;cursor:not-allowed}.btn.full-width{width:100%}@media (max-width: 768px){.container{padding:1rem}.header-content h1{font-size:1.8rem}.payment-form-container{grid-template-columns:1fr}.tabs{flex-wrap:wrap}.form-row{grid-template-columns:1fr}.invoice-table{font-size:.9rem}.invoice-table th,.invoice-table td{padding:.75rem}}.invoice-section{margin-bottom:2.5rem}.invoice-section h3{color:var(--primary-color);margin-bottom:1rem;font-size:1.2rem}.invoice-table-wrapper{overflow-x:auto;border-radius:4px;border:1px solid var(--border-color)}.invoice-table{width:100%;border-collapse:collapse;background-color:#fff}.invoice-table thead{background-color:#f0f9ff;border-bottom:2px solid var(--border-color)}.invoice-table th{padding:1rem;text-align:left;font-weight:600;color:var(--primary-color);font-size:.95rem}.invoice-table td{padding:1rem;border-bottom:1px solid var(--border-color)}.invoice-table tbody tr:hover{background-color:#f8fafc}.invoice-table .invoice-number{font-weight:600;color:var(--primary-color)}.invoice-table .amount{font-weight:600;color:var(--success-color)}.invoice-table .paid-row{background-color:#f0fdf4}.empty-message{text-align:center;color:var(--secondary-color);padding:2rem;font-style:italic}.loading{text-align:center;padding:2rem;color:var(--secondary-color)}.btn-delete{background-color:var(--error-color);color:#fff}.btn-delete:hover:not(:disabled){background-color:#dc2626}.btn-small{padding:.4rem .8rem;font-size:.85rem}.btn-secondary{background-color:var(--secondary-color);color:#fff}.btn-secondary:hover:not(:disabled){background-color:#475569;box-shadow:0 2px 8px #64748b4d}.btn-danger{background-color:var(--error-color);color:#fff}.btn-danger:hover:not(:disabled){background-color:#dc2626}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.modal-dialog{background-color:#fff;padding:2rem;border-radius:8px;box-shadow:0 4px 12px #00000026;width:92%;max-width:700px}.modal-dialog h3{color:var(--primary-color);margin-bottom:1rem}.modal-dialog p{color:var(--secondary-color);margin-bottom:1.5rem}.modal-buttons{display:flex;gap:1rem}.modal-buttons .btn{flex:1}@media print{.header,.back-btn,.no-print,nav,header,footer,button:not(.print-btn){display:none!important}button{display:none!important}.payment-success{display:block!important;visibility:visible!important;position:relative!important;margin:0 auto!important;padding:10px!important;page-break-inside:avoid;max-width:800px}.payment-success>div{page-break-inside:avoid}body{background:#fff!important;margin:0!important;padding:0!important}.payment-success h2{font-size:1.5rem!important;margin-bottom:.5rem!important}.payment-success h3{font-size:1.2rem!important;margin-bottom:.75rem!important;padding-bottom:.5rem!important}.payment-success>div:first-child>div:first-child{font-size:2.5rem!important;margin-bottom:.5rem!important}.payment-success>div:nth-child(2){padding:1rem!important;margin-bottom:0!important}table thead th,table tbody td,.payment-success div[style*="display: flex"]{padding:.25rem 0!important;font-size:.9rem!important}.payment-success div[style*="backgroundColor: #d1ecf1"]{margin-top:.75rem!important;padding:.5rem!important;font-size:.85rem!important}.payment-success h2,.payment-success h3{color:#000!important}.payment-success p{margin:0!important}}