:root{--primary-color: #011b33;--secondary-color: #3bb75e;--light-color: #f4f4f4;--dark-color: #333;--success-color: #28a745;--warning-color: #ffc107;--danger-color: #dc3545;--max-width: 1200px;--border-radius: 4px;--box-shadow: 0 2px 10px rgba(0, 0, 0, .1);--transition: all .3s ease}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.6;background-color:#f8f9fa;color:var(--dark-color)}a{text-decoration:none;color:var(--primary-color)}ul{list-style:none}img{width:100%}.app-container{display:flex;flex-direction:column;min-height:100vh}.app-header{background-color:var(--primary-color);color:#fff;padding:1rem 0;text-align:center}.app-header h1{margin:0;font-size:1.8rem}.app-main{flex:1;width:100%;max-width:var(--max-width);margin:0 auto;padding:2rem 1rem}.app-footer{background-color:var(--primary-color);color:#fff;text-align:center;padding:1rem 0;margin-top:auto}.payment-options{display:flex;flex-direction:column;gap:2rem;margin-bottom:2rem}.payment-options h2{text-align:center;margin-bottom:1rem;color:var(--primary-color)}.payment-card{background-color:#fff;border-radius:var(--border-radius);box-shadow:var(--box-shadow);padding:1.5rem;display:flex;flex-direction:column;gap:1rem}.payment-card h3{color:var(--primary-color)}.payment-button-container{width:100%}.payment-button{background-color:var(--secondary-color);color:#fff;border:none;padding:.8rem 1.5rem;border-radius:var(--border-radius);cursor:pointer;font-size:1rem;font-weight:600;transition:var(--transition);width:100%}.payment-button:hover{background-color:#2a9849}.payment-button:disabled{background-color:#ccc;cursor:not-allowed}.payment-form{display:flex;flex-direction:column;gap:1rem}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-group label{font-weight:600;color:var(--dark-color)}.form-group input{padding:.8rem;border:1px solid #ddd;border-radius:var(--border-radius);font-size:1rem}.payment-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;opacity:0;visibility:hidden;transition:opacity .3s ease}.payment-modal-overlay.active{opacity:1;visibility:visible}.payment-modal-overlay.closing{opacity:0}.payment-modal{background-color:#fff;border-radius:8px;width:90%;max-width:500px;box-shadow:0 5px 15px #0000004d;display:flex;flex-direction:column;overflow:hidden;animation:modalFadeIn .3s}@keyframes modalFadeIn{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.payment-modal-header{display:flex;align-items:center;justify-content:space-between;padding:1rem;background-color:var(--primary-color);color:#fff}.payment-modal-header h2{margin:0;font-size:1.5rem}.close-button{background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer}.payment-modal-body{padding:1.5rem}.payment-details{display:flex;flex-direction:column;gap:1.5rem}.amount-display{text-align:center;font-size:2.5rem;font-weight:700;color:var(--primary-color)}.payment-modal-footer{padding:1rem;background-color:#f8f9fa;display:flex;flex-direction:column;align-items:center;gap:1rem}.secure-payment-note{font-size:.9rem;color:#666}.payment-options-img{max-width:250px}.transaction-section{margin-top:2rem}.toggle-history-button{background-color:var(--primary-color);color:#fff;border:none;padding:.8rem 1.5rem;border-radius:var(--border-radius);cursor:pointer;font-size:1rem;margin-bottom:1.5rem;transition:var(--transition)}.toggle-history-button:hover{background-color:#02304f}.transaction-history h2{margin-bottom:1rem;color:var(--primary-color)}.transaction-table-container{overflow-x:auto;margin-bottom:1.5rem}.transaction-table{width:100%;border-collapse:collapse}.transaction-table th,.transaction-table td{padding:.8rem;text-align:left;border-bottom:1px solid #ddd}.transaction-table th{background-color:#f2f2f2;font-weight:600}.transaction-table tr:hover{background-color:#f9f9f9}.status-badge{padding:.3rem .6rem;border-radius:20px;font-size:.8rem;font-weight:600;text-transform:capitalize}.status-success{background-color:#e6f7ed;color:var(--success-color)}.status-failed{background-color:#fbeaea;color:var(--danger-color)}.status-pending{background-color:#fff8e6;color:var(--warning-color)}.pagination{display:flex;align-items:center;justify-content:center;gap:1rem}.pagination button{background-color:var(--primary-color);color:#fff;border:none;padding:.5rem 1rem;border-radius:var(--border-radius);cursor:pointer;transition:var(--transition)}.pagination button:hover{background-color:#02304f}.pagination button:disabled{background-color:#ccc;cursor:not-allowed}.page-info{font-weight:600}.callback-container{max-width:600px;margin:2rem auto;padding:2rem;background-color:#fff;border-radius:8px;box-shadow:var(--box-shadow);text-align:center}.callback-container h2{margin-bottom:1rem;color:var(--primary-color)}.callback-container.success h2{color:var(--success-color)}.callback-container.error h2{color:var(--danger-color)}.transaction-details{text-align:left;margin:1.5rem 0;padding:1rem;background-color:#f9f9f9;border-radius:var(--border-radius)}.transaction-details p{margin-bottom:.5rem}.callback-container button{background-color:var(--primary-color);color:#fff;border:none;padding:.8rem 1.5rem;border-radius:var(--border-radius);cursor:pointer;font-size:1rem;transition:var(--transition)}.callback-container button:hover{background-color:#02304f}@media (min-width: 768px){.payment-options{flex-direction:row;flex-wrap:wrap}.payment-card{flex:1;min-width:300px}.app-header h1{font-size:2.2rem}}.loading{text-align:center;padding:1rem;color:#666}.error-message{color:var(--danger-color);background-color:#fbeaea;padding:.8rem;border-radius:var(--border-radius);margin-bottom:1rem}.no-transactions{text-align:center;padding:2rem;color:#666}