.login-container{max-width:400px;margin:12rem auto;padding:2rem;border:1px solid #ccc;border-radius:8px;background-color:#fff;box-shadow:0 4px 6px #0000001a}.login-form .form-group{margin-bottom:1.5rem}.login-form label{display:block;margin-bottom:.5rem;font-weight:700}.login-form input{width:100%;padding:.75rem;border:1px solid #ccc;border-radius:4px;box-sizing:border-box}.login-form button{width:100%;padding:.75rem;border:none;background-color:#007bff;color:#fff;font-size:1rem;border-radius:4px;cursor:pointer}.login-form button:disabled{background-color:#aaa}.error{color:#dc3545;font-size:.875rem;margin-top:.25rem}.general-error{margin-bottom:1rem;text-align:center}.invoice-table th,.invoice-table td{padding:.75rem;text-align:left;border-bottom:1px solid #ddd}.invoice-table th{background-color:#f2f2f2}.download-btn{padding:.5rem 1rem;border:none;background-color:#28a745;color:#fff;border-radius:4px;cursor:pointer}.download-btn:hover{background-color:#218838}.date-filters{display:flex;gap:1rem;align-items:center}.filter-group label{font-size:.8rem;color:#6c757d;margin-bottom:.25rem}.filter-group input[type=date]{padding:.5rem;border:1px solid #ccc;border-radius:4px;font-family:inherit}.table-wrapper{overflow-x:auto}.error-message{color:#dc3545;text-align:center;padding:1rem;background-color:#f8d7da;border:1px solid #f5c6cb;border-radius:4px}.no-data{text-align:center;padding:2rem;color:#6c757d;font-style:italic}.download-icon-btn{background:none;border:none;color:#007bff;cursor:pointer;padding:.5rem;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:background-color .2s}.download-icon-btn:hover{background-color:#e9ecef}.download-icon-btn svg{width:20px;height:20px}.invoice-container{background-color:#fff;padding:2rem;border-radius:8px;box-shadow:0 4px 6px #0000001a}.invoice-table{width:100%;border-collapse:collapse;margin-top:1rem}.invoice-table th,.invoice-table td{padding:.75rem 1rem;text-align:left;border-bottom:1px solid #ddd;white-space:nowrap}.invoice-table th{background-color:#f8f9fa;font-weight:600}.invoice-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem;flex-wrap:wrap;gap:1rem}.filters-container{display:flex;gap:1rem;align-items:flex-end}.filter-group{display:flex;flex-direction:column}.filter-group label{font-size:.8rem;color:#6c757d;margin-bottom:.25rem;font-weight:500}.filter-group input[type=date],.filter-group input[type=text],.filter-group select{padding:.5rem;border:1px solid #ccc;border-radius:4px;font-family:inherit;font-size:.9rem;background-color:#fff;height:38px;box-sizing:border-box}#search{min-width:220px}.invoice-table{width:100%;min-width:1000px;border-collapse:collapse;margin-top:1rem}.navbar{display:flex;justify-content:space-between;align-items:center;padding:1rem 2rem;background-color:#fff;box-shadow:0 2px 4px #0000000d;border-bottom:1px solid #e9ecef}.nav-logo a{display:flex;align-items:center}.nav-controls{display:flex;align-items:center;gap:1.5rem}.nav-controls .nav-link{text-decoration:none;color:#007bff;font-weight:500;transition:color .2s}.nav-controls .nav-link:hover{color:#0056b3;text-decoration:underline}.user-greeting{font-style:italic;color:#6c757d}.login-link{padding:.5rem 1rem;border:1px solid #007bff;border-radius:4px;text-decoration:none;color:#007bff;font-weight:500;transition:all .2s ease-in-out}.login-link:hover{background-color:#007bff;color:#fff}.logout-btn{padding:.5rem 1rem;border:none;background-color:#dc3545;color:#fff;border-radius:4px;cursor:pointer;font-weight:500;transition:background-color .2s}.logout-btn:hover{background-color:#c82333}.not-found-container{display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;height:60vh}.not-found-container h1{font-size:6rem;margin:0;color:#dc3545}.not-found-container h2{font-size:2rem;margin-top:.5rem}.not-found-container p{font-size:1rem;color:#6c757d}.home-link{margin-top:1.5rem;padding:.75rem 1.5rem;background-color:#007bff;color:#fff;text-decoration:none;border-radius:5px;font-weight:700;transition:background-color .2s}.home-link:hover{background-color:#0056b3}.container{margin:2rem auto;padding:1rem}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;margin:0;background-color:#f4f7f6;color:#333}