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h1{font-size:2rem;margin-bottom:1rem;color:#ef5350}.error-container p{font-size:1.1rem;color:#666;margin-bottom:2rem}.error-actions{display:flex;gap:1rem;justify-content:center}.error-actions button{padding:.75rem 1.5rem;background:#4caf50;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:1rem}.error-actions button:hover{background:#45a049}.loading{text-align:center;padding:3rem;font-size:1.1rem;color:#666}.bystrokabel-credentials-section{background:#fff;border:1px solid #e0e0e0;border-radius:8px;padding:2rem;margin-top:2rem}.bystrokabel-credentials-section h2{font-size:1.5rem;margin-bottom:1.5rem;color:#444}.credentials-form{display:flex;flex-direction:column;gap:1.5rem}.credentials-form .form-group{display:flex;flex-direction:column;gap:.5rem}.credentials-form label{font-weight:500;color:#333;font-size:.9rem}.credentials-form input[type=text],.credentials-form input[type=password]{padding:.75rem;border:1px solid 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#0000000d}.transaction-main{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.transaction-type{font-weight:500;color:#1a1a1a;font-size:15px}.transaction-amount{font-size:18px;font-weight:600}.transaction-amount.positive{color:#10b981}.transaction-amount.negative{color:#ef4444}.transaction-details{display:flex;flex-direction:column;gap:4px}.transaction-description{color:#666;font-size:14px}.transaction-meta{display:flex;gap:16px;font-size:12px;color:#9ca3af}.invoices-list{display:flex;flex-direction:column;gap:16px}.invoice-item{padding:20px;border:1px solid #e5e7eb;border-radius:8px;background:#f9fafb;transition:all .2s}.invoice-item:hover{border-color:#d1d5db;background:#fff;box-shadow:0 2px 4px #0000000d}.invoice-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.invoice-number{font-size:16px;font-weight:600;color:#1a1a1a}.status-badge{padding:4px 12px;border-radius:12px;font-size:12px;font-weight:500}.status-badge.status-pending{background:#fef3c7;color:#92400e}.status-badge.status-paid{background:#d1fae5;color:#065f46}.status-badge.status-cancelled{background:#fee2e2;color:#991b1b}.status-badge.status-debt{background:#fecaca;color:#7f1d1d}.invoice-details{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}.invoice-row{display:flex;justify-content:space-between;font-size:14px}.invoice-label{color:#666}.invoice-value{color:#1a1a1a;font-weight:500}.invoice-actions{display:flex;gap:12px;padding-top:16px;border-top:1px solid #e5e7eb}.btn-sm{padding:8px 16px;font-size:13px}.btn{padding:10px 20px;border:none;border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s;display:inline-flex;align-items:center;gap:6px;text-decoration:none}.btn-primary{background:#2563eb;color:#fff}.btn-primary:hover{background:#1d4ed8}.btn-secondary{background:#fff;color:#374151;border:1px solid #d1d5db}.btn-secondary:hover{background:#f9fafb;border-color:#9ca3af}.btn:disabled{opacity:.5;cursor:not-allowed}.error-message{padding:12px 16px;background:#fee2e2;color:#991b1b;border-radius:6px;margin-bottom:16px;font-size:14px}.loading{text-align:center;padding:60px 20px;color:#666;font-size:16px}:root{color-scheme:light}a{color:inherit}h1,h2,h3{margin:0 0 1rem}.page-heading{margin-bottom:1rem}.placeholder-text{color:#6b7280}table{width:100%;border-collapse:collapse}table thead{background:#f0f2f8}table th,table td{padding:.75rem;border-bottom:1px solid #e5e7eb;text-align:left}table tbody tr:hover{background:#f9fafb}