:root{--primary:#2e7d32;--danger:#c62828;--bg:#f4f6f4;--text:#1b1f1c;--muted:#6b756d;--border:#d8ded9;font-family:system-ui,-apple-system,Segoe UI,sans-serif}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0}#app{max-width:640px;margin:0 auto;padding:16px;display:none}#app.visible{display:block}#auth-screen{max-width:360px;margin:15vh auto 0;padding:24px}label{color:var(--muted);margin-top:12px;font-size:14px;display:block}input,select,button{border:1px solid var(--border);border-radius:8px;width:100%;margin-top:4px;padding:10px 12px;font-size:16px}button{background:var(--primary);color:#fff;cursor:pointer;border:none;margin-top:16px;font-weight:600}.error{color:var(--danger);min-height:1.2em;margin-top:8px;font-size:14px}.tabs{gap:8px;margin-bottom:16px;display:flex;overflow-x:auto}.tab{width:auto;color:var(--text);border:1px solid var(--border);white-space:nowrap;background:#fff;margin-top:0;font-weight:500}.tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}.tab.logout{color:var(--muted);background:0 0;border:none;margin-left:auto}.filter-row{flex-wrap:wrap;gap:6px;margin-bottom:8px;display:flex}.chip{border:1px solid var(--border);cursor:pointer;background:#fff;border-radius:999px;padding:6px 10px;font-size:13px}.chip.active{background:var(--primary);color:#fff;border-color:var(--primary)}.card{background:#fff;border-radius:10px;margin:12px 0;padding:16px}.toolbar{margin-bottom:12px}.toolbar button{width:auto;margin-top:0}.checkbox-row{align-items:center;gap:8px;margin-top:12px;display:flex}.checkbox-row input{width:auto;margin-top:0}.checkbox-row label{margin-top:0}.form-actions{gap:8px;margin-top:16px;display:flex}.form-actions button{margin-top:0}button.danger{background:var(--danger)}.small-btn{width:auto;padding:6px 10px;font-size:13px}.receipt-preview{align-items:center;gap:10px;margin-top:8px;display:flex}.receipt-preview img{object-fit:cover;border-radius:6px;width:64px;height:64px}.expense-list{margin:0;padding:0;list-style:none}.expense-row{cursor:pointer;background:#fff;border-radius:10px;justify-content:space-between;align-items:center;gap:12px;margin-bottom:8px;padding:12px 14px;display:flex}.expense-main{flex-direction:column;gap:2px;min-width:0;display:flex}.expense-date{color:var(--muted);font-size:13px}.expense-desc{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-size:13px;overflow:hidden}.expense-side{flex-direction:column;align-items:flex-end;gap:4px;display:flex}.expense-amount{font-weight:700}.expense-payer{color:var(--muted);font-size:12px}.empty{color:var(--muted);text-align:center;padding:20px 0}.expense-card .expense-list{margin-bottom:0}.expense-card .expense-row{margin-bottom:8px}.expense-card .expense-row:last-child{margin-bottom:0}.total-row{cursor:default;border-top:2px solid var(--border);background:0 0;border-radius:0;margin-top:12px;padding-top:14px}.row-left{align-items:center;gap:10px;font-weight:600;display:flex}.row-icon{width:32px;height:32px;color:var(--primary);background:#e3f0e3;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;font-weight:700;display:inline-flex}.total-row .expense-amount{color:var(--primary);font-size:18px}.badge{border-radius:999px;padding:2px 8px;font-size:11px}.badge.pending{color:#8a6d00;background:#fff8e1}.badge.paid{color:var(--primary);background:#e8f5e9}.badge.personal{color:var(--muted);background:#eceff1}.balance-row{border-bottom:1px solid var(--border);justify-content:space-between;padding:8px 0;display:flex}.balance-row:last-child{border-bottom:none}.balance-row .amt.pos{color:var(--primary);font-weight:700}.balance-row .amt.neg{color:var(--danger);font-weight:700}.balance-row .amt.zero{color:var(--muted)}.stat-grid{grid-template-columns:1fr 1fr;gap:12px;display:grid}.stat-tile{background:var(--bg);text-align:center;border-radius:10px;padding:14px}.stat-label{letter-spacing:.03em;text-transform:uppercase;color:var(--muted);margin-bottom:6px;font-size:11px;display:block}.stat-value{color:var(--primary);font-size:20px;font-weight:700;display:block}.bar-chart{gap:8px;display:flex}.bar-chart-yaxis{text-align:right;height:180px;color:var(--muted);white-space:nowrap;flex-direction:column;justify-content:space-between;padding-right:4px;font-size:11px;display:flex}.bar-chart-main{flex:1;min-width:0}.bar-chart-plot{border-bottom:1px solid var(--border);align-items:flex-end;gap:4px;height:180px;padding:0 2px;display:flex}.bar-col{flex:1;justify-content:center;align-items:flex-end;height:100%;display:flex}.bar{background:var(--primary);border-radius:3px 3px 0 0;width:60%;max-width:28px;min-height:2px}.bar-chart-labels{gap:4px;padding:6px 2px 0;display:flex}.bar-chart-labels span{text-align:center;color:var(--muted);flex:1;font-size:11px}.donut-wrap{justify-content:center;margin:12px 0;display:flex}.donut{border-radius:50%;width:180px;height:180px;position:relative}.donut:after{content:"";background:#fff;border-radius:50%;width:60%;height:60%;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.legend{flex-direction:column;gap:6px;display:flex}.legend-row{align-items:center;gap:8px;font-size:14px;display:flex}.legend-swatch{border-radius:3px;flex-shrink:0;width:12px;height:12px}.legend-label{flex:1}.legend-value{color:var(--muted);font-size:13px}.category-row{border-bottom:1px solid var(--border);align-items:center;gap:10px;padding:8px 0;display:flex}.category-row .cat-name{flex:1}.category-row:last-child{border-bottom:none}