:root{
  --bg:#f4f6fa; --surface:#ffffff; --surface2:#eef2f8; --text:#1b2333; --muted:#5d6779; --line:#dde3ec;
  --brand:#1F3864; --brand2:#2E75B6; --brand-soft:#ddebf7;
  --inc:#1b7f3b; --inc-soft:#e3f3e8; --exp:#c0392b; --exp-soft:#fbe7e5; --warn:#a15c00; --warn-soft:#fff2d6;
  --radius:14px; --shadow:0 1px 2px rgba(16,24,40,.06),0 2px 8px rgba(16,24,40,.05);
  --nav-h:64px;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#0f141c; --surface:#18202b; --surface2:#212b38; --text:#e7ecf3; --muted:#9aa6b8; --line:#2c3746;
    --brand:#8fb3ff; --brand2:#6ea8ff; --brand-soft:#1f2d45;
    --inc:#4cc77a; --inc-soft:#16301f; --exp:#ff7b6e; --exp-soft:#3a1d1a; --warn:#ffbf5a; --warn-soft:#3a2c12;
    --shadow:none; color-scheme:dark;
  }
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:15px/1.45 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
a{color:var(--brand2)}
h1{font-size:1.35rem;margin:.2rem 0 1rem}
h2{font-size:1.05rem;margin:0 0 .75rem}
.muted{color:var(--muted)} .small{font-size:.85rem}
.ic{width:22px;height:22px;flex:none}
.wrap{max-width:1080px;margin:0 auto;padding:16px 16px calc(var(--nav-h) + 32px + env(safe-area-inset-bottom))}
.no-nav .wrap{padding-bottom:32px}

/* top bar */
.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:12px;padding:10px 16px;padding-top:calc(10px + env(safe-area-inset-top));background:var(--brand);color:#fff}
@media (prefers-color-scheme:dark){.topbar{background:#152238}}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:700;font-size:1.05rem;min-width:0}
.brand img{border-radius:7px}
.brand span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topnav{display:none;margin-left:auto;gap:2px;align-items:center}
.topnav a,.topnav .linkbtn{color:#dfe8f7;text-decoration:none;padding:7px 10px;border-radius:8px;font-size:.92rem}
.topnav a.on,.topnav a:hover,.topnav .linkbtn:hover{background:rgba(255,255,255,.14);color:#fff}
.more-btn{margin-left:auto;color:#fff;display:flex;padding:6px;border-radius:8px}
.more-btn.on{background:rgba(255,255,255,.16)}
.inline{display:inline;margin:0}
.linkbtn{background:none;border:0;font:inherit;cursor:pointer}

/* bottom nav */
.bottomnav{position:fixed;left:0;right:0;bottom:0;z-index:30;display:flex;justify-content:space-around;align-items:flex-end;
  background:var(--surface);border-top:1px solid var(--line);padding:6px 4px calc(6px + env(safe-area-inset-bottom));height:calc(var(--nav-h) + env(safe-area-inset-bottom))}
.bottomnav a{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;color:var(--muted);text-decoration:none;font-size:.72rem;padding:4px 0}
.bottomnav a.on{color:var(--brand2);font-weight:600}
.bottomnav a.fab{position:relative;top:-14px}
.bottomnav a.fab .ic{width:28px;height:28px;background:var(--brand2);color:#fff;border-radius:50%;padding:12px;box-sizing:content-box;box-shadow:0 4px 12px rgba(46,117,182,.4)}
@media (min-width:900px){
  .topnav{display:flex} .more-btn{display:none} .bottomnav{display:none}
  .wrap{padding-bottom:40px}
}

/* cards & layout */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);margin-bottom:16px}
.grid{display:grid;gap:12px}
.kpis{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-bottom:16px}
@media (min-width:700px){.kpis{grid-template-columns:repeat(4,minmax(0,1fr))}.two{grid-template-columns:1fr 1fr}}
.kpi{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:12px 14px;box-shadow:var(--shadow);min-width:0}
.kpi .lbl{font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.kpi .val{font-size:1.25rem;font-weight:700;margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-variant-numeric:tabular-nums}
.kpi .cur{font-size:.75rem;color:var(--muted);font-weight:600;margin-right:3px}
.pos{color:var(--inc)} .neg{color:var(--exp)}
.row{display:flex;align-items:center;gap:10px}
.between{justify-content:space-between}
.wrapflex{flex-wrap:wrap}
.right{text-align:right}
.headrow{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.headrow h1{margin:0}

/* period nav */
.periodnav{display:flex;align-items:center;gap:6px}
.periodform{margin:0}
.periodnav input[type=month],.periodnav select{padding:8px 10px;min-width:150px}
.iconbtn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:10px;background:var(--surface);border:1px solid var(--line);color:var(--text);text-decoration:none}

/* forms */
label{display:block;font-size:.86rem;color:var(--muted);font-weight:600}
input,select,textarea{display:block;width:100%;margin-top:5px;padding:11px 12px;font:inherit;font-size:16px;color:var(--text);background:var(--surface);border:1px solid var(--line);border-radius:10px}
input:focus,select:focus,textarea:focus{outline:2px solid var(--brand2);outline-offset:0;border-color:transparent}
.check{display:flex;align-items:center;gap:8px;font-weight:500;color:var(--text)}
.check input{width:auto;margin:0}
.stack{display:grid;gap:14px}
.fields2{display:grid;gap:14px}
@media (min-width:600px){.fields2{grid-template-columns:1fr 1fr}}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 18px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--text);font:inherit;font-weight:600;text-decoration:none;cursor:pointer}
.btn-primary{background:var(--brand2);border-color:var(--brand2);color:#fff}
.btn-danger{background:transparent;border-color:var(--exp);color:var(--exp)}
.btn-sm{padding:7px 12px;font-size:.88rem}
.btn-block{width:100%}
.btnrow{display:flex;gap:10px;flex-wrap:wrap}
.btnrow .btn{flex:1}

/* type toggle */
.seg{display:grid;grid-template-columns:1fr 1fr;background:var(--surface2);border-radius:12px;padding:4px;gap:4px}
.seg input{position:absolute;opacity:0;pointer-events:none}
.seg label{margin:0;text-align:center;padding:10px;border-radius:9px;cursor:pointer;color:var(--muted);font-size:.95rem}
.seg label:has(input[value=expense]:checked),.seg label.sel-expense{background:var(--exp);color:#fff}
.seg label:has(input[value=income]:checked),.seg label.sel-income{background:var(--inc);color:#fff}
.amount-input{font-size:2rem !important;font-weight:700;text-align:center;padding:14px !important;font-variant-numeric:tabular-nums}
.curtag{text-align:center;color:var(--muted);font-weight:600;font-size:.85rem;margin-top:6px}

/* flash */
.flash{padding:11px 14px;border-radius:10px;margin-bottom:12px;font-weight:500;border:1px solid transparent}
.flash-ok{background:var(--inc-soft);color:var(--inc);border-color:color-mix(in srgb,var(--inc) 30%,transparent)}
.flash-err{background:var(--exp-soft);color:var(--exp);border-color:color-mix(in srgb,var(--exp) 30%,transparent)}
.flash-warn{background:var(--warn-soft);color:var(--warn);border-color:color-mix(in srgb,var(--warn) 30%,transparent)}

/* auth */
.auth{max-width:420px;margin:8vh auto 0;padding:24px}
.authlogo{display:block;margin:0 auto 8px;border-radius:14px}
.auth h1{text-align:center}

/* transaction list */
.txlist{list-style:none;margin:0;padding:0}
.txday{font-size:.8rem;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;padding:14px 4px 6px}
.tx{display:flex;align-items:center;gap:12px;padding:11px 12px;background:var(--surface);border:1px solid var(--line);border-radius:12px;margin-bottom:6px;text-decoration:none;color:var(--text)}
.tx:hover{border-color:var(--brand2)}
.tx .dot{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;flex:none;font-size:.9rem}
.tx .dot.income{background:var(--inc-soft);color:var(--inc)}
.tx .dot.expense{background:var(--exp-soft);color:var(--exp)}
.tx .mid{flex:1;min-width:0}
.tx .t1{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tx .t2{font-size:.82rem;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tx .amt{font-weight:700;white-space:nowrap;font-variant-numeric:tabular-nums}
.empty{text-align:center;color:var(--muted);padding:28px 10px}

/* bars */
.bar{height:8px;background:var(--surface2);border-radius:99px;overflow:hidden;margin-top:6px}
.bar > i{display:block;height:100%;background:var(--brand2);border-radius:99px}
.bar > i.over{background:var(--exp)} .bar > i.near{background:#d68a00} .bar > i.ok{background:var(--inc)}
.brow{padding:9px 0;border-bottom:1px solid var(--line)}
.brow:last-child{border-bottom:0}
.brow .row{font-size:.92rem}
.brow .name{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:600}
.brow .nums{color:var(--muted);font-size:.85rem;white-space:nowrap;font-variant-numeric:tabular-nums}

/* tables */
.tablewrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:12px;background:var(--surface)}
table{border-collapse:collapse;width:100%;font-size:.86rem;font-variant-numeric:tabular-nums}
th,td{padding:8px 10px;border-bottom:1px solid var(--line);white-space:nowrap;text-align:right}
th:first-child,td:first-child{text-align:left;position:sticky;left:0;background:var(--surface);z-index:1;max-width:190px;overflow:hidden;text-overflow:ellipsis}
thead th{background:var(--surface2);font-weight:700;color:var(--muted);position:sticky;top:0}
thead th:first-child{background:var(--surface2);z-index:2}
tr.sec td{background:var(--brand-soft);color:var(--brand);font-weight:700;text-align:left}
tr.sec td:first-child{background:var(--brand-soft)}
tr.tot td{font-weight:700}
tr.tot-inc td,tr.tot-inc td:first-child{background:var(--inc-soft)}
tr.tot-exp td,tr.tot-exp td:first-child{background:var(--exp-soft)}
tr.other td:first-child{font-style:italic;color:var(--muted)}
td.zero{color:var(--muted)}
.status{display:inline-block;padding:2px 9px;border-radius:99px;font-size:.78rem;font-weight:700}
.st-over{background:var(--exp-soft);color:var(--exp)} .st-near{background:var(--warn-soft);color:var(--warn)} .st-ok{background:var(--inc-soft);color:var(--inc)} .st-none{background:var(--surface2);color:var(--muted)}

/* chart */
.chartscroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.chart svg{width:100%;min-width:540px;max-width:780px;height:auto;display:block;margin:0 auto}
.chart .axis{stroke:var(--line)} .chart text{fill:var(--muted);font-size:15px}
.chart .b-inc{fill:var(--inc)} .chart .b-exp{fill:var(--exp)} .chart .netline{stroke:var(--brand2);fill:none;stroke-width:2.5} .chart .netdot{fill:var(--brand2)}
.legend{display:flex;gap:16px;flex-wrap:wrap;font-size:.84rem;color:var(--muted);margin-top:8px}
.legend i{display:inline-block;width:11px;height:11px;border-radius:3px;margin-right:6px;vertical-align:-1px}

/* filters */
.filters{display:grid;gap:10px;grid-template-columns:1fr 1fr}
.filters .full{grid-column:1/-1}
@media (min-width:800px){.filters{grid-template-columns:170px 140px 1fr 1fr auto}.filters .full{grid-column:auto}}
.filters label{margin:0}

/* menu */
.menu{padding:6px}
.menu a,.menu button{display:flex;align-items:center;gap:14px;padding:14px 12px;color:var(--text);text-decoration:none;border-radius:10px;width:100%;background:none;border:0;font:inherit;cursor:pointer;text-align:left}
.menu a:hover,.menu button:hover{background:var(--surface2)}
.menu form{margin:0}
.menu .ic{color:var(--brand2)}

/* categories editor */
.catrow{display:grid;grid-template-columns:1fr 120px;gap:8px;align-items:end;padding:10px 0;border-bottom:1px solid var(--line)}
.catrow:last-child{border-bottom:0}
.catrow .acts{grid-column:1/-1;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.catrow input{margin-top:0}
.catrow.archived{opacity:.6}
@media (min-width:760px){.catrow{grid-template-columns:1fr 150px 80px auto}.catrow .acts{grid-column:auto}}
.tag{display:inline-block;font-size:.72rem;padding:1px 8px;border-radius:99px;background:var(--surface2);color:var(--muted);font-weight:600}
details summary{cursor:pointer;font-weight:600;color:var(--brand2);padding:6px 0}
.d-block{display:block}

@media (prefers-color-scheme:dark){
  .btn-primary,.bottomnav a.fab .ic{background:#2E75B6;border-color:#2E75B6;color:#fff}
  .seg label:has(input:checked),.seg label.sel-expense,.seg label.sel-income{color:#0f141c}
}
.toggle-empty{margin:8px 0 0}