:root{--primary-color: #3b82f6;--primary-dark: #2563eb;--primary-light: #60a5fa;--success-color: #10b981;--danger-color: #ef4444;--warning-color: #f59e0b;--bg-primary: #ffffff;--bg-secondary: #f8fafc;--bg-tertiary: #f1f5f9;--text-primary: #0f172a;--text-secondary: #64748b;--border-color: #e2e8f0;--shadow: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--radius: 10px;--radius-sm: 6px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background-color:var(--bg-secondary);color:var(--text-primary);line-height:1.6}.app{max-width:1200px;margin:0 auto;padding:16px}.header{background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-dark) 100%);padding:20px 24px;border-radius:var(--radius);box-shadow:var(--shadow-md);margin-bottom:20px;display:flex;justify-content:space-between;align-items:center;color:#fff}.header h1{font-size:24px;font-weight:700;color:#fff}.balance{text-align:right}.balance-label{font-size:13px;color:#fff;margin-bottom:4px}.balance-amount{font-size:28px;font-weight:700;color:#fff}.balance-amount.positive{color:#22c55e}.balance-amount.negative{color:#ef4444}.tabs{display:flex;gap:6px;margin-bottom:16px;background:var(--bg-primary);padding:6px;border-radius:var(--radius);box-shadow:var(--shadow)}.tab{flex:1;padding:10px 16px;border:none;background:transparent;color:var(--text-secondary);font-size:14px;font-weight:500;cursor:pointer;border-radius:var(--radius-sm);transition:all .2s}.tab:hover{background:var(--bg-secondary);color:var(--text-primary)}.tab.active{background:var(--primary-color);color:#fff;box-shadow:var(--shadow)}.content{background:var(--bg-primary);padding:24px;border-radius:var(--radius);box-shadow:var(--shadow)}.btn{padding:9px 18px;border:none;border-radius:var(--radius-sm);font-size:14px;font-weight:500;cursor:pointer;transition:all .15s;display:inline-flex;align-items:center;gap:6px;box-shadow:var(--shadow)}.btn:hover{transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn:active{transform:translateY(0)}.btn-primary{background:var(--primary-color);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-success{background:var(--success-color);color:#fff}.btn-success:hover{background:#059669}.btn-danger{background:var(--danger-color);color:#fff}.btn-danger:hover{background:#dc2626}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary)}.btn-secondary:hover{background:var(--border-color)}.btn-small{padding:6px 12px;font-size:13px}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;font-weight:500;color:var(--text-primary)}.form-group input,.form-group select,.form-group textarea{width:100%;padding:10px 12px;border:1px solid var(--border-color);border-radius:8px;font-size:14px;background:var(--bg-primary);color:var(--text-primary)}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb1a}.form-group textarea{resize:vertical;min-height:80px}.form-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:20px}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}.modal{background:var(--bg-primary);border-radius:12px;padding:30px;max-width:500px;width:100%;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-lg)}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.modal-header h2{font-size:24px;margin:0}.modal-close{background:none;border:none;font-size:28px;color:var(--text-secondary);cursor:pointer;padding:0;width:30px;height:30px;display:flex;align-items:center;justify-content:center;border-radius:4px;transition:all .2s}.modal-close:hover{background:var(--bg-tertiary);color:var(--text-primary)}.modal-actions{display:flex;gap:10px;justify-content:space-between;margin-top:20px}.error-message{padding:10px;background:#fee2e2;color:#dc2626;border-radius:8px;margin-bottom:15px;font-size:14px}.transaction-list{display:flex;flex-direction:column;gap:10px}.transaction-item{display:flex;justify-content:space-between;align-items:center;padding:15px;background:var(--bg-secondary);border-radius:8px;border-left:4px solid var(--border-color)}.transaction-item.income{border-left-color:var(--success-color)}.transaction-item.expense{border-left-color:var(--danger-color)}.transaction-info{flex:1}.transaction-date{font-size:12px;color:var(--text-secondary)}.transaction-category{font-size:14px;font-weight:500;color:var(--text-primary);margin:2px 0}.transaction-description{font-size:13px;color:var(--text-secondary)}.transaction-amount{font-size:18px;font-weight:700;margin-right:10px}.transaction-amount.income{color:var(--success-color)}.transaction-amount.expense{color:var(--danger-color)}.transaction-actions{display:flex;gap:5px}.category-tree{display:flex;flex-direction:column;gap:5px}.category-item{display:flex;justify-content:space-between;align-items:center;padding:12px 15px;background:var(--bg-secondary);border-radius:8px}.category-item.child{margin-left:30px;background:var(--bg-tertiary)}.category-info{flex:1}.category-name{font-weight:500;color:var(--text-primary)}.category-type{font-size:12px;color:var(--text-secondary);margin-left:10px}.category-type.income{color:var(--success-color)}.category-type.expense{color:var(--danger-color)}.category-actions{display:flex;gap:5px}.report-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;margin-bottom:30px}.report-card{background:var(--bg-secondary);padding:20px;border-radius:8px;border-left:4px solid var(--primary-color)}.report-card.income{border-left-color:var(--success-color)}.report-card.expense{border-left-color:var(--danger-color)}.report-label{font-size:14px;color:var(--text-secondary);margin-bottom:8px}.report-value{font-size:28px;font-weight:700;color:var(--text-primary)}.report-value.income{color:var(--success-color)}.report-value.expense{color:var(--danger-color)}.filters{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:15px;margin-bottom:20px;padding:20px;background:var(--bg-secondary);border-radius:8px}.empty-state{text-align:center;padding:60px 20px;color:var(--text-secondary)}.empty-state h3{margin-bottom:10px;font-size:20px}.loading{text-align:center;padding:40px;color:var(--text-secondary)}.transactions-table-container{overflow-x:auto;margin-top:20px}.transactions-table{width:100%;border-collapse:collapse;background:var(--bg-primary)}.transactions-table thead{background:var(--bg-secondary)}.transactions-table th{padding:12px 15px;text-align:left;font-weight:600;color:var(--text-secondary);font-size:13px;text-transform:uppercase;letter-spacing:.5px;border-bottom:2px solid var(--border-color)}.transactions-table td{padding:12px 15px;border-bottom:1px solid var(--border-color);font-size:14px}.transactions-table tbody tr:hover{background:var(--bg-secondary)}.transactions-table .amount{font-weight:600;white-space:nowrap}.transactions-table .amount.income{color:var(--success-color)}.transactions-table .amount.expense{color:var(--danger-color)}.transactions-table .balance{color:var(--text-secondary);white-space:nowrap}.transactions-table .table-actions{display:flex;gap:5px}.badge{display:inline-block;padding:4px 8px;border-radius:4px;font-size:12px;font-weight:500;white-space:nowrap}.badge.income{background:#d1fae5;color:#065f46}.badge.expense{background:#fee2e2;color:#991b1b}.settings-section{max-width:800px}.settings-section h3{font-size:18px;font-weight:600;color:var(--text-primary);margin-bottom:8px}.backup-actions{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;margin-bottom:20px}.backup-card{background:var(--bg-secondary);padding:24px;border-radius:var(--radius);border:1px solid var(--border-color);text-align:center;transition:all .2s}.backup-card:hover{border-color:var(--primary-color);box-shadow:var(--shadow-md);transform:translateY(-2px)}.backup-icon{font-size:48px;margin-bottom:12px}.backup-card h4{font-size:16px;font-weight:600;color:var(--text-primary);margin-bottom:8px}.backup-card p{font-size:14px;color:var(--text-secondary);margin-bottom:16px}.warning-box{background:#fef3c7;border:1px solid #fbbf24;border-radius:var(--radius-sm);padding:16px;color:#92400e;font-size:14px;line-height:1.5}.warning-box strong{display:block;margin-bottom:4px}.message{padding:12px 16px;border-radius:var(--radius-sm);margin-bottom:20px;font-size:14px;font-weight:500}.message.success{background:#d1fae5;color:#065f46;border:1px solid #6ee7b7}.message.error{background:#fee2e2;color:#991b1b;border:1px solid #fca5a5}@media (max-width: 768px){.app{padding:10px}.header{flex-direction:column;gap:16px;text-align:center}.header>div:first-child p{display:none}.balance{text-align:center}.tabs{flex-wrap:wrap}.tab{flex:1 1 45%}.content{padding:16px}.filters{grid-template-columns:1fr}.transaction-item{flex-direction:column;align-items:flex-start;gap:10px}.transaction-actions{width:100%;justify-content:flex-end}.transactions-table-container{overflow-x:auto}.transactions-table{font-size:12px}.transactions-table th,.transactions-table td{padding:8px 10px}.modal-actions{flex-direction:column}.modal-actions button{width:100%}.backup-actions{grid-template-columns:1fr}}