:root {
  --line: #e6e6e9; --muted: #6b7280; --in: #0a7d34; --bg: #fafafa; --accent: #111;
  --warn: #9a6700; --bad: #b42318; --good: #0a7d34;
}
* { box-sizing: border-box; }
body { font: 15px/1.5 system-ui, -apple-system, sans-serif; margin: 0; background: var(--bg); color: #111; }
a { color: inherit; }
.topnav { display: flex; align-items: center; gap: .25rem; padding: .6rem 1.5rem; background: #fff;
  border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; }
.topnav .brand { font-weight: 700; letter-spacing: -.02em; margin-right: 1rem; }
.topnav a { text-decoration: none; color: var(--muted); padding: .35rem .7rem; border-radius: 7px; font-weight: 500; }
.topnav a:hover { background: #f3f3f5; color: #111; }
.topnav a.active { background: #111; color: #fff; }
.topnav .sp { flex: 1; }
main { max-width: 64rem; margin: 0 auto; padding: 1.5rem; }
h1 { font-size: 1.25rem; letter-spacing: -.02em; margin: 0 0 .25rem; }
.sub { color: var(--muted); font-size: .85rem; margin: 0 0 1.25rem; }
select, input { font: inherit; padding: .4rem .55rem; border: 1px solid var(--line); border-radius: 7px; background: #fff; }
button { font: inherit; padding: .45rem .8rem; border: 1px solid var(--line); border-radius: 8px; background: #fff; cursor: pointer; }
button.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
button.sm { padding: .25rem .5rem; font-size: .8rem; }
.kpis { display: grid; grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.card { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 1.1rem 1.2rem; }
.card .label { color: var(--muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; }
.card .val { font-size: 1.6rem; font-weight: 600; margin-top: .25rem; font-variant-numeric: tabular-nums; }
.card .note { color: var(--muted); font-size: .82rem; margin-top: .3rem; }
.card.alert { border-color: #f3c2bd; background: #fff7f6; }
.bar { height: 9px; background: #eee; border-radius: 999px; overflow: hidden; margin-top: .6rem; }
.bar > span { display: block; height: 100%; background: var(--good); }
.bar.warn > span { background: var(--warn); }
.bar.bad > span { background: var(--bad); }
table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
th, td { text-align: left; padding: .6rem .8rem; border-bottom: 1px solid var(--line); }
th { font-size: .75rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tr:last-child td { border-bottom: 0; }
.pos { color: var(--bad); } /* over budget / money out */
.neg { color: var(--good); }
.money-in { color: var(--in); }
.row-actions { display: flex; gap: .5rem; }
.toolbar { display: flex; align-items: center; gap: .75rem; margin-bottom: 1rem; flex-wrap: wrap; }
.toolbar .sp { flex: 1; }
.chip { display: inline-block; font-size: .72rem; padding: .12rem .5rem; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); }
.toast { position: fixed; bottom: 1rem; left: 50%; transform: translateX(-50%); background: #111; color: #fff; padding: .6rem 1rem; border-radius: 8px; opacity: 0; transition: opacity .2s; z-index: 50; }
.toast.show { opacity: 1; }

/* ---- Mobile (iPhone-class, <=640px) ---- */
@media (max-width: 640px) {
  html { -webkit-text-size-adjust: 100%; }
  main { padding: 1rem; }
  h1 { font-size: 1.1rem; }
  /* Nav scrolls horizontally instead of wrapping into a tall block */
  .topnav { flex-wrap: nowrap; overflow-x: auto; gap: .1rem; padding: .5rem .75rem; scrollbar-width: none; }
  .topnav::-webkit-scrollbar { display: none; }
  .topnav .brand { margin-right: .5rem; }
  .topnav a { padding: .3rem .55rem; white-space: nowrap; }
  /* Wide data tables scroll horizontally rather than overflowing the page */
  table { display: block; overflow-x: auto; white-space: nowrap; -webkit-overflow-scrolling: touch; }
  /* KPI cards stack one per row */
  .kpis { grid-template-columns: 1fr; gap: .75rem; }
  .card { padding: .9rem 1rem; }
  .card .val { font-size: 1.35rem; }
  /* Toolbars: controls grow to fill the row, then wrap */
  .toolbar { gap: .5rem; }
  .toolbar input, .toolbar select { flex: 1 1 8rem; min-width: 0; }
  button { padding: .5rem .8rem; }
}