:root {
  --bg: #f6f7f9; --panel: #fff; --text: #1d2330; --muted: #6b7280; --line: #e3e6eb;
  --accent: #2563eb; --good: #15803d; --bad: #b91c1c; --warn: #b45309;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #14171c; --panel: #1d2128; --text: #e6e8ec; --muted: #9aa3b0; --line: #2d333d;
          --accent: #6ea0ff; --good: #4ade80; --bad: #f87171; --warn: #fbbf24; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.4 system-ui, sans-serif; }
a { color: var(--accent); }
h1 { font-size: 1.3rem; margin: 0 0 .75rem; }
h2 { font-size: 1.05rem; margin: 1.25rem 0 .5rem; }
.muted { color: var(--muted); }
.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.good { color: var(--good); } .bad { color: var(--bad); }

.top { position: sticky; top: 0; z-index: 5; background: var(--panel); border-bottom: 1px solid var(--line); padding: .5rem 1rem; }
#nav { display: flex; gap: .25rem; flex-wrap: wrap; margin-bottom: .5rem; }
#nav a { padding: .3rem .7rem; border-radius: 6px; text-decoration: none; color: var(--text); }
#nav a.active { background: var(--accent); color: #fff; }
#quick { display: flex; flex-wrap: wrap; gap: .4rem; align-items: center; }
#quick .seg { display: flex; border: 1px solid var(--line); border-radius: 6px; overflow: hidden; }
#quick .seg button { border: 0; border-radius: 0; background: none; }
#quick .seg button.on { background: var(--accent); color: #fff; }
#quick input[name=amount] { width: 8rem; }
#quick input[name=description], #quick input[name=notes] { flex: 1 1 10rem; min-width: 8rem; }

main { max-width: 1100px; margin: 0 auto; padding: 1rem; }
input, select, button, textarea { font: inherit; color: var(--text); background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: .35rem .5rem; }
button { cursor: pointer; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.danger { color: var(--bad); }
button.link { border: 0; background: none; color: var(--accent); padding: .1rem .3rem; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: .9rem 1rem; margin-bottom: 1rem; overflow-x: auto; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: .75rem; margin-bottom: 1rem; }
.cards .card { margin: 0; }
.cards .label { color: var(--muted); font-size: .8rem; }
.cards .value { font-size: 1.35rem; font-weight: 600; font-variant-numeric: tabular-nums; }
.bar { height: 8px; background: var(--line); border-radius: 4px; overflow: hidden; }
.bar > i { display: block; height: 100%; background: var(--accent); }
.bar.over > i { background: var(--bad); }
.filters { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: .75rem; align-items: center; }
.tabs { display: flex; gap: .25rem; flex-wrap: wrap; margin-bottom: .75rem; }
.tabs a { padding: .3rem .7rem; border-radius: 6px; border: 1px solid var(--line); text-decoration: none; color: var(--text); background: var(--panel); }
.tabs a.active { background: var(--accent); border-color: var(--accent); color: #fff; }

table { width: 100%; border-collapse: collapse; }
th, td { padding: .35rem .5rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: middle; }
th { font-size: .78rem; color: var(--muted); font-weight: 600; }
td input, td select { width: 100%; min-width: 5rem; }
tr.archived td { color: var(--muted); }
.actions { white-space: nowrap; text-align: right; }

.tree ul { list-style: none; margin: 0; padding-left: 1.25rem; }
.tree > ul { padding-left: 0; }
.tree li > div { display: flex; gap: .5rem; align-items: center; padding: .2rem 0; border-bottom: 1px solid var(--line); }
.tree .name { flex: 1; }
.dot { display: inline-block; width: .7rem; height: .7rem; border-radius: 50%; margin-right: .4rem; }

svg.chart { width: 100%; height: auto; display: block; }
svg.chart text { fill: var(--text); font-size: 12px; }
svg.chart .axis { stroke: var(--line); }
svg.chart .muted { fill: var(--muted); }
svg.chart [data-drill] { cursor: pointer; }
.legend { display: flex; flex-wrap: wrap; gap: .75rem; font-size: .85rem; margin-top: .5rem; }

dialog { border: 1px solid var(--line); border-radius: 10px; background: var(--panel); color: var(--text); padding: 1rem; width: min(26rem, 94vw); }
dialog::backdrop { background: rgba(0,0,0,.4); }
dialog label { display: block; margin-bottom: .6rem; font-size: .85rem; color: var(--muted); }
dialog label input, dialog label select, dialog label textarea { display: block; width: 100%; margin-top: .15rem; color: var(--text); }
dialog label.check { display: flex; gap: .5rem; align-items: center; }
dialog label.check input { width: auto; margin: 0; }
dialog .row { display: flex; justify-content: flex-end; gap: .5rem; margin-top: 1rem; }
#toast { position: fixed; bottom: 1rem; left: 50%; transform: translateX(-50%); background: var(--text); color: var(--bg);
         padding: .5rem 1rem; border-radius: 8px; opacity: 0; pointer-events: none; transition: opacity .2s; z-index: 20; }
#toast.show { opacity: 1; } #toast.err { background: var(--bad); color: #fff; }

@media (max-width: 640px) {
  main { padding: .6rem; }
  th, td { padding: .3rem .3rem; }
  .hide-sm { display: none; }
}

body.login main { max-width: 22rem; padding-top: 12vh; }
body.login form { display: flex; flex-direction: column; gap: .75rem; }
body.login h1 { margin: 0; }
body.login label { display: block; font-size: .85rem; color: var(--muted); }
body.login input { display: block; width: 100%; margin-top: .15rem; }
body.login .bad { margin: 0; }
#nav .signout { margin-left: auto; }