*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#f5f7fa;--card:#fff;--border:#e2e8f0;--primary:#4f46e5;--primary-hover:#4338ca;--danger:#dc2626;--text:#1e293b;--muted:#64748b;--radius:8px}body{background:var(--bg);color:var(--text);font-family:system-ui,sans-serif;font-size:15px}.app{max-width:900px;margin:0 auto;padding:24px 16px}header h1{margin-bottom:24px;font-size:1.6rem}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:20px;padding:24px}h2{margin-bottom:16px;font-size:1.05rem;font-weight:600}.expense-form{flex-direction:column;gap:14px;display:flex}.form-row{flex-wrap:wrap;gap:14px;display:flex}.form-group{flex-direction:column;flex:1;gap:4px;min-width:140px;display:flex}label{color:var(--muted);text-transform:uppercase;letter-spacing:.03em;font-size:.82rem;font-weight:500}input,select{border:1px solid var(--border);border-radius:var(--radius);width:100%;color:var(--text);background:#fff;padding:8px 12px;font-size:.95rem;transition:border-color .15s}input:focus,select:focus{border-color:var(--primary);outline:none}.input-error{border-color:var(--danger)!important}.field-error{color:var(--danger);font-size:.78rem}.btn-primary{background:var(--primary);color:#fff;border-radius:var(--radius);cursor:pointer;border:none;align-self:flex-start;padding:10px 20px;font-size:.95rem;font-weight:600;transition:background .15s}.btn-primary:hover:not(:disabled){background:var(--primary-hover)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.list-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px;display:flex}.list-header h2{margin:0}.filter-bar{align-items:center;gap:8px;display:flex}.filter-bar label{color:var(--muted);white-space:nowrap;font-size:.82rem}.filter-bar select{width:auto;min-width:160px}.summary-bar{border:1px solid var(--border);border-radius:var(--radius);background:#f8fafc;margin-bottom:16px;padding:12px 16px}.total{font-size:1rem}.count{color:var(--muted);font-size:.85rem}.category-breakdown{flex-wrap:wrap;gap:8px;margin-top:10px;display:flex}.cat-chip{color:#3730a3;background:#e0e7ff;border-radius:999px;padding:3px 10px;font-size:.8rem}.table-wrapper{overflow-x:auto}.expense-table{border-collapse:collapse;width:100%;font-size:.92rem}.expense-table th{text-align:left;border-bottom:2px solid var(--border);color:var(--muted);text-transform:uppercase;letter-spacing:.04em;padding:8px 12px;font-size:.8rem}.expense-table td{border-bottom:1px solid var(--border);padding:10px 12px}.expense-table tr:last-child td{border-bottom:none}.expense-table tr:hover td{background:#f8fafc}.amount-col{text-align:right;font-variant-numeric:tabular-nums;font-weight:500}.date-col{white-space:nowrap;color:var(--muted)}.desc-col{word-break:break-word;max-width:260px}.badge{color:var(--muted);background:#f1f5f9;border-radius:999px;padding:2px 8px;font-size:.78rem}.error-msg{color:var(--danger);padding:8px 0;font-size:.88rem}.loading-msg{color:var(--muted);padding:8px 0}.empty-msg{color:var(--muted);text-align:center;padding:32px 0}@media (width<=600px){.form-row{flex-direction:column}.list-header{flex-direction:column;align-items:flex-start}}