:root{
  color-scheme:light;
  --page:#f9f9f7; --surface:#fcfcfb; --surface-2:#f2f1ec;
  --ink:#0b0b0b; --ink-2:#52514e; --muted:#898781;
  --hairline:#e1e0d9; --baseline:#c3c2b7; --border:rgba(11,11,11,0.10);
  --accent:#2a78d6; --accent-ink:#ffffff;
  --good:#0ca30c; --good-bg:#e4f6e4;
  --warn:#c98500; --warn-bg:#fff3d6;
  --critical:#d03b3b; --critical-bg:#fbe7e7;
  --div-pos:#2a78d6; --div-neg:#e34948; --div-mid:#e1e0d9;
  --cat-1:#2a78d6; --cat-2:#eb6834; --cat-3:#1baf7a; --cat-4:#c98500;
  --cat-5:#e87ba4; --cat-6:#008300; --cat-7:#4a3aa7; --cat-8:#e34948;
  --cat-other:#a9a79f;
  --font-ui:'IBM Plex Sans',system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-data:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --radius:10px; --radius-sm:6px;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    color-scheme:dark;
    --page:#0d0d0d; --surface:#1a1a19; --surface-2:#232322;
    --ink:#ffffff; --ink-2:#c3c2b7; --muted:#8f8d87;
    --hairline:#2c2c2a; --baseline:#383835; --border:rgba(255,255,255,0.12);
    --accent:#3987e5; --accent-ink:#ffffff;
    --good:#0ca30c; --good-bg:rgba(12,163,12,0.18);
    --warn:#c98500; --warn-bg:rgba(201,133,0,0.20);
    --critical:#e66767; --critical-bg:rgba(230,103,103,0.18);
    --div-pos:#3987e5; --div-neg:#e66767; --div-mid:#383835;
    --cat-1:#3987e5; --cat-2:#d95926; --cat-3:#199e70; --cat-4:#c98500;
    --cat-5:#d55181; --cat-6:#1fae1f; --cat-7:#9085e9; --cat-8:#e66767;
    --cat-other:#6f6d66;
  }
}
:root[data-theme="dark"]{
  color-scheme:dark;
  --page:#0d0d0d; --surface:#1a1a19; --surface-2:#232322;
  --ink:#ffffff; --ink-2:#c3c2b7; --muted:#8f8d87;
  --hairline:#2c2c2a; --baseline:#383835; --border:rgba(255,255,255,0.12);
  --accent:#3987e5; --accent-ink:#ffffff;
  --good:#0ca30c; --good-bg:rgba(12,163,12,0.18);
  --warn:#c98500; --warn-bg:rgba(201,133,0,0.20);
  --critical:#e66767; --critical-bg:rgba(230,103,103,0.18);
  --div-pos:#3987e5; --div-neg:#e66767; --div-mid:#383835;
  --cat-1:#3987e5; --cat-2:#d95926; --cat-3:#199e70; --cat-4:#c98500;
  --cat-5:#d55181; --cat-6:#1fae1f; --cat-7:#9085e9; --cat-8:#e66767;
  --cat-other:#6f6d66;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0; background:var(--page); color:var(--ink);
  font-family:var(--font-ui); font-size:15px; line-height:1.45;
  -webkit-font-smoothing:antialiased;
}
#app{max-width:760px; margin:0 auto; padding:0 0 64px;}
h1,h2,h3{font-weight:600; text-wrap:balance; margin:0;}
button{font-family:inherit; font-size:inherit;}
a{color:var(--accent);}
code{font-family:var(--font-data); background:var(--surface-2); padding:1px 5px; border-radius:4px; font-size:.92em;}
.num{font-family:var(--font-data);}
.tabular{font-variant-numeric:tabular-nums;}
::selection{background:var(--accent); color:var(--accent-ink);}
:focus-visible{outline:2px solid var(--accent); outline-offset:2px; border-radius:4px;}

/* ---- topbar ---- */
.topbar{
  position:sticky; top:0; z-index:20; background:var(--page);
  border-bottom:1px solid var(--hairline); padding:12px 18px 0;
}
.topbar-inner{max-width:760px; margin:0 auto;}
.brand-row{display:flex; align-items:center; justify-content:space-between; gap:10px; flex-wrap:wrap; padding-bottom:10px;}
.brand{display:flex; align-items:center; gap:8px; font-size:15px; font-weight:600;}
.brand .mark{font-size:18px;}
.readonly-chip{
  font-size:11px; font-weight:600; letter-spacing:.03em; text-transform:uppercase;
  color:var(--warn); background:var(--warn-bg); border-radius:999px; padding:3px 9px;
}

.tabs{display:flex; gap:4px; overflow-x:auto; padding:2px 0 0; scrollbar-width:none;}
.tabs::-webkit-scrollbar{display:none;}
.tab-btn{
  appearance:none; border:none; background:none; cursor:pointer;
  padding:10px 4px 12px; margin-right:18px; font-size:14px; font-weight:500;
  color:var(--muted); white-space:nowrap; border-bottom:2px solid transparent;
}
.tab-btn.active{color:var(--ink); border-bottom-color:var(--accent); font-weight:600;}
.tab-btn:hover{color:var(--ink);}

/* ---- generic layout ---- */
.section{padding:20px 18px 0;}
.section-head{display:flex; align-items:center; justify-content:space-between; gap:12px; margin-bottom:12px;}
.section-title{font-size:16px; font-weight:600;}
.section-sub{font-size:13px; color:var(--muted); margin-top:2px;}
.card{
  background:var(--surface); border:1px solid var(--hairline); border-radius:var(--radius);
  padding:16px;
}
.card + .card{margin-top:12px;}
.stack{display:flex; flex-direction:column; gap:12px;}
.row{display:flex; gap:10px; align-items:center;}
.row.wrap{flex-wrap:wrap;}
.spacer{flex:1;}

/* ---- buttons & inputs ---- */
.btn{
  appearance:none; border:1px solid var(--hairline); background:var(--surface); color:var(--ink);
  border-radius:var(--radius-sm); padding:9px 14px; font-size:13.5px; font-weight:500;
  cursor:pointer; display:inline-flex; align-items:center; gap:6px; line-height:1.2;
}
.btn:hover{border-color:var(--baseline);}
.btn:disabled{opacity:.5; cursor:not-allowed;}
.btn-primary{background:var(--accent); border-color:var(--accent); color:var(--accent-ink);}
.btn-primary:hover{filter:brightness(1.06);}
.btn-ghost{border-color:transparent; background:transparent;}
.btn-ghost:hover{background:var(--surface-2);}
.btn-danger{color:var(--critical);}
.btn-sm{padding:6px 10px; font-size:12.5px;}
.btn-block{width:100%; justify-content:center;}
.icon-btn{padding:6px 8px;}

label{display:block; font-size:12.5px; font-weight:600; color:var(--ink-2); margin-bottom:5px;}
input[type=text],input[type=number],input[type=date],input[type=file],select,textarea{
  width:100%; background:var(--surface); color:var(--ink); border:1px solid var(--hairline);
  border-radius:var(--radius-sm); padding:9px 10px; font-size:14px; font-family:inherit;
}
input.num-input{font-family:var(--font-data);}
input:focus,select:focus,textarea:focus{border-color:var(--accent);}
textarea{font-family:var(--font-data); font-size:12.5px; min-height:150px; resize:vertical; line-height:1.5;}
.field{margin-bottom:12px;}
.field:last-child{margin-bottom:0;}
.field-grid{display:grid; grid-template-columns:1fr 1fr; gap:12px;}

/* ---- searchable category combobox ---- */
.combo{position:relative;}
.combo-menu{
  position:absolute; left:0; right:0; top:calc(100% + 4px); z-index:40;
  background:var(--surface); border:1px solid var(--hairline); border-radius:var(--radius-sm);
  box-shadow:0 8px 24px rgba(0,0,0,.16); max-height:240px; overflow-y:auto; padding:4px;
}
.combo-option{
  display:flex; align-items:center; gap:8px; padding:7px 9px; border-radius:5px;
  font-size:13.5px; color:var(--ink); cursor:pointer;
}
.combo-option:hover,.combo-option.active{background:var(--surface-2);}
.combo-swatch{width:9px; height:9px; border-radius:50%; flex:none;}
.combo-label{overflow:hidden; text-overflow:ellipsis; white-space:nowrap;}
.combo-empty{padding:9px; font-size:13px; color:var(--muted);}
.hint{font-size:12px; color:var(--muted); margin-top:5px;}
.chip-select{display:flex; gap:6px; flex-wrap:wrap;}
.chip-opt{
  border:1px solid var(--hairline); background:var(--surface); border-radius:999px;
  padding:6px 12px; font-size:13px; cursor:pointer; color:var(--ink-2);
}
.chip-opt.active{background:var(--accent); border-color:var(--accent); color:var(--accent-ink); font-weight:600;}

/* ---- ledger list ---- */
.empty{
  text-align:center; padding:36px 20px; color:var(--muted); font-size:13.5px;
  border:1px dashed var(--hairline); border-radius:var(--radius);
}
.txn-list{display:flex; flex-direction:column; gap:1px; background:var(--hairline); border:1px solid var(--hairline); border-radius:var(--radius); overflow:hidden;}
.txn-row{background:var(--surface); padding:12px 14px; display:flex; gap:12px; align-items:center; cursor:pointer;}
.txn-row:hover{background:var(--surface-2);}
.txn-cat-dot{width:9px; height:9px; border-radius:50%; flex:none;}
.txn-main{flex:1; min-width:0;}
.txn-desc{font-size:14px; font-weight:500; white-space:nowrap; overflow:hidden; text-overflow:ellipsis;}
.txn-meta{font-size:12px; color:var(--muted); margin-top:2px; display:flex; gap:6px; flex-wrap:wrap;}
.txn-amount{font-family:var(--font-data); font-size:14px; font-weight:600; text-align:right; flex:none;}
.txn-share{font-size:11px; color:var(--muted); text-align:right; margin-top:2px; font-family:var(--font-data);}
.month-group + .month-group{margin-top:22px;}
.month-heading{
  display:flex; align-items:baseline; justify-content:space-between; gap:4px 12px; flex-wrap:wrap;
  font-size:12px; font-weight:600; text-transform:uppercase; letter-spacing:.04em;
  color:var(--muted); margin-bottom:8px;
}
.month-name{flex:none;}
.month-total{margin-left:auto;}
.member-totals,.month-total{display:inline-flex; gap:2px 14px; flex-wrap:wrap; text-transform:none; letter-spacing:0;}
.mt-part{font-size:12px; font-weight:600; color:var(--ink-2); white-space:nowrap;}
.mt-name{font-weight:500; color:var(--muted);}
.month-empty{font-size:13px; color:var(--muted); padding:4px 2px 2px;}

/* ---- form panel ---- */
.form-panel{border:1px solid var(--hairline); background:var(--surface); border-radius:var(--radius); padding:16px; margin-bottom:14px;}
.form-panel h3{font-size:14.5px; margin-bottom:14px;}

/* ---- badges / toasts ---- */
.badge{font-size:11px; font-weight:600; border-radius:999px; padding:2px 8px; letter-spacing:.02em;}
.badge-cat{background:var(--surface-2); color:var(--ink-2);}
.toast{
  position:fixed; left:50%; bottom:20px; transform:translateX(-50%); z-index:60;
  background:var(--ink); color:var(--page); padding:11px 16px; border-radius:999px;
  font-size:13px; box-shadow:0 6px 24px rgba(0,0,0,.25); max-width:90vw;
}
:root:not([data-theme="light"]) .toast{background:var(--surface-2); color:var(--ink); border:1px solid var(--hairline);}
.toast.warn{background:var(--warn-bg); color:#7a5200; border:1px solid var(--warn);}
.toast.error{background:var(--critical-bg); color:var(--critical); border:1px solid var(--critical);}
.banner{
  display:flex; gap:10px; align-items:flex-start; padding:11px 14px; border-radius:var(--radius-sm);
  font-size:13px; background:var(--warn-bg); color:#7a5200; border:1px solid var(--warn); margin:14px 18px 0;
}
:root:not([data-theme="light"]) .banner{color:var(--warn);}

/* ---- charts ---- */
.chart-card{padding:16px;}
.chart-title{font-size:13.5px; font-weight:600; margin-bottom:2px;}
.chart-sub{font-size:12px; color:var(--muted); margin-bottom:14px;}
.barlist{display:flex; flex-direction:column; gap:9px;}
.bar-row{display:grid; grid-template-columns:126px 1fr auto; gap:10px; align-items:center; position:relative;}
.bar-label{font-size:12.5px; color:var(--ink-2); white-space:nowrap; overflow:hidden; text-overflow:ellipsis;}
.bar-track{height:20px; background:var(--surface-2); border-radius:4px; overflow:hidden; position:relative;}
.bar-fill{height:100%; border-radius:4px; min-width:3px;}
.bar-value{font-family:var(--font-data); font-size:12px; text-align:right; min-width:64px; color:var(--ink-2);}
.colchart{display:flex; align-items:flex-end; gap:8px; height:150px; padding-top:8px; position:relative; border-bottom:1px solid var(--baseline);}
.colchart .gridline{position:absolute; left:0; right:0; border-top:1px solid var(--hairline);}
.colchart .gridline .glabel{position:absolute; left:0; top:-8px; font-size:10px; color:var(--muted); font-family:var(--font-data); background:var(--surface); padding-right:4px;}
.col-item{flex:1; display:flex; flex-direction:column; align-items:center; justify-content:flex-end; height:100%; min-width:0; position:relative;}
.col-track{width:100%; max-width:26px; display:flex; align-items:flex-end; height:100%;}
.col-fill{width:100%; background:var(--accent); border-radius:4px 4px 0 0; min-height:2px;}
.col-label{font-size:10.5px; color:var(--muted); margin-top:6px; white-space:nowrap;}
.chart-tooltip{
  position:fixed; z-index:80; background:var(--ink); color:var(--page); font-size:12px;
  padding:6px 9px; border-radius:6px; pointer-events:none; white-space:nowrap; opacity:0; transition:opacity .08s;
  font-family:var(--font-data);
}
:root:not([data-theme="light"]) .chart-tooltip{background:var(--surface-2); color:var(--ink); border:1px solid var(--hairline);}
.chart-tooltip.show{opacity:1;}
.linechart-wrap{width:100%;}
.linechart-wrap svg{width:100%; height:auto; display:block; overflow:visible;}
.axis-range{display:flex; justify-content:space-between; font-size:11px; color:var(--muted); font-family:var(--font-data); margin-top:4px;}
.legend{display:flex; gap:14px; flex-wrap:wrap; margin-top:12px; font-size:12px; color:var(--ink-2);}
.legend-item{display:flex; align-items:center; gap:6px;}
.legend-swatch{width:9px; height:9px; border-radius:2px;}

/* ---- import ---- */
.dropzone{
  border:1.5px dashed var(--hairline); border-radius:var(--radius); padding:28px 16px;
  text-align:center; color:var(--muted); font-size:13.5px; transition:border-color .12s, background .12s;
}
.dropzone.dragover{border-color:var(--accent); background:color-mix(in srgb, var(--accent) 8%, var(--surface));}
.map-grid{display:grid; grid-template-columns:1fr 1fr; gap:12px;}
.preview-table-wrap{overflow-x:auto; border:1px solid var(--hairline); border-radius:var(--radius-sm);}
table.preview{border-collapse:collapse; width:100%; font-size:12.5px;}
table.preview th{text-align:left; padding:7px 10px; background:var(--surface-2); color:var(--ink-2); font-weight:600; white-space:nowrap; position:sticky; top:0;}
table.preview td{padding:7px 10px; border-top:1px solid var(--hairline); white-space:nowrap; font-family:var(--font-data);}
table.preview td.desc{font-family:var(--font-ui); white-space:normal; min-width:140px;}
tr.needs-review td{background:var(--warn-bg);}
table.preview tbody tr{cursor:pointer;}
table.preview tbody tr:hover td{background:var(--surface-2);}
tr.needs-review:hover td{background:var(--warn-bg);}
table.preview td.preview-row-actions{width:1%; white-space:nowrap;}
table.preview td.preview-row-actions .btn{padding:4px 7px; font-size:13px; line-height:1;}
table.preview tfoot td{padding:8px 10px; background:var(--surface-2); font-weight:600;}
table.preview tr.preview-total-row td{border-top:2px solid var(--baseline);}
table.preview tr.preview-total-row td:first-child{text-transform:uppercase; letter-spacing:.03em; font-size:11px; color:var(--ink-2); font-family:var(--font-ui);}
table.preview tr.preview-member-row td{border-top:1px solid var(--hairline); font-weight:500; color:var(--ink-2);}
table.preview tr.preview-member-row td:first-child{text-transform:none; letter-spacing:0; font-size:12px;}
.row-tag{
  display:inline-block; margin-left:6px; padding:1px 6px; border-radius:999px; font-size:10px;
  font-weight:600; letter-spacing:.02em; text-transform:uppercase; background:var(--surface-2); color:var(--muted);
  font-family:var(--font-ui); vertical-align:middle;
}

/* ---- settings ---- */
.list-edit{display:flex; flex-direction:column; gap:6px;}
.list-edit-row{display:flex; align-items:center; gap:8px; background:var(--surface); border:1px solid var(--hairline); border-radius:var(--radius-sm); padding:7px 10px;}
.list-edit-row input{border:none; background:none; padding:2px 0; flex:1;}
.list-edit-row input:focus{outline:none;}
.cat-swatch{width:11px; height:11px; border-radius:50%; flex:none;}

footer.foot{padding:28px 18px 0; font-size:11.5px; color:var(--muted); text-align:center;}

@media (max-width:600px){
  /* 16px input text keeps iOS Safari from zooming in on focus */
  input[type=text],input[type=number],input[type=date],input[type=file],select,textarea{font-size:16px;}
  .section{padding:16px 14px 0;}
  .card{padding:14px;}
  .topbar{padding:10px 14px 0;}
  .field-grid{grid-template-columns:1fr;}
  .map-grid{grid-template-columns:1fr;}
  .btn{padding:10px 14px;}
  .btn-sm{padding:8px 11px;}
  .tab-btn{margin-right:14px; padding:10px 2px 12px;}
  .bar-row{grid-template-columns:96px 1fr auto; gap:8px;}
  .bar-value{min-width:52px;}
  .txn-row{padding:11px 12px; gap:10px;}
  .txn-meta{font-size:11.5px; gap:4px 6px;}
  .txn-amount{font-size:13.5px;}
  .txn-share{white-space:normal; max-width:15ch;}
  footer.foot{padding-left:14px; padding-right:14px;}
}
@media (max-width:380px){
  .brand{font-size:14px;}
  .bar-row{grid-template-columns:1fr; gap:3px;}
  .bar-label{grid-column:1;}
  .bar-value{grid-column:1; text-align:left; min-width:0;}
  .bar-track{grid-column:1;}
}

/* ---- login screen ---- */
.login-wrap{
  min-height:100vh; display:flex; align-items:center; justify-content:center; padding:24px;
}
.login-card{
  width:100%; max-width:340px; background:var(--surface); border:1px solid var(--hairline);
  border-radius:var(--radius); padding:28px 24px;
}
.login-brand{display:flex; align-items:center; gap:8px; font-weight:600; font-size:16px; margin-bottom:6px;}
.login-sub{font-size:13px; color:var(--muted); margin-bottom:20px;}
.login-error{font-size:13px; color:var(--critical); margin-top:10px; min-height:1em;}