:root {
  --bg: #f4f5f7; --card: #fff; --text: #1d232b; --muted: #6b7480; --line: #e3e6ea;
  --primary: #1f5f8b; --primary-ink: #fff; --ok: #1e7a46; --ok-bg: #e6f4ec;
  --warn: #9a6200; --warn-bg: #fdf3e0; --bad: #b42318; --bad-bg: #fdecea;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #14171b; --card: #1d2127; --text: #e6e8eb; --muted: #9aa3ad; --line: #2e343c;
    --primary: #4c9ad3; --primary-ink: #0d1116; --ok: #5cc68a; --ok-bg: #16301f;
    --warn: #e7b04d; --warn-bg: #352a12; --bad: #f2776c; --bad-bg: #3a1a17; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
a { color: var(--primary); }
h1 { font-size: 1.6rem; margin: 1.2rem 0 .4rem; }
h2 { font-size: 1.15rem; margin: 0 0 .8rem; }
h3 { font-size: 1rem; margin: 1.2rem 0 .6rem; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 16px; }
main.wrap { padding-bottom: 3rem; }
.top { background: var(--card); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem 1.5rem; padding-top: .7rem; padding-bottom: .7rem; }
.brand { font-weight: 700; text-decoration: none; color: var(--text); }
nav { display: flex; flex-wrap: wrap; gap: .3rem .9rem; align-items: center; flex: 1; }
nav > a { text-decoration: none; color: var(--muted); padding: .2rem 0; border-bottom: 2px solid transparent; }
nav > a.active, nav > a:hover { color: var(--text); border-color: var(--primary); }
.who { margin-left: auto; color: var(--muted); font-size: .88rem; }
.badge { background: var(--bad); color: #fff; border-radius: 9px; padding: 0 .45em; font-size: .75rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 1.1rem 1.2rem; margin: 1rem 0; }
.card.narrow { max-width: 420px; margin: 3rem auto; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 0 1rem; }
.apt { text-decoration: none; color: inherit; display: block; transition: border-color .15s; }
.apt:hover { border-color: var(--primary); }
.apt-head { display: flex; justify-content: space-between; }
.apt h2 { margin: 0; font-size: 1.4rem; }
.big { font-size: 1.9rem; font-weight: 700; margin: .6rem 0 .1rem; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin: 1rem 0; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: .8rem 1rem; }
.stat .label { color: var(--muted); font-size: .85rem; }
.stat .value { font-size: 1.35rem; font-weight: 700; }
.ok { color: var(--ok); } .bad { color: var(--bad); } .warn { color: var(--warn); }
.muted { color: var(--muted); } .small { font-size: .87rem; } .mono { font-family: ui-monospace, Menlo, monospace; }
.row-between { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: .6rem; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .45rem .5rem; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); font-weight: 600; }
td.num, th.num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
td.center { text-align: center; }
tr.dim td { opacity: .6; }
tr.overdue td { background: var(--bad-bg); }
tr.total td { font-weight: 600; border-bottom: 0; }
.scroll { overflow-x: auto; }
.actions { white-space: nowrap; text-align: right; }
.actions form { display: inline; }
.tag { display: inline-block; padding: .05rem .5rem; border-radius: 20px; font-size: .78rem; font-weight: 600; white-space: nowrap; }
.tag.ok { background: var(--ok-bg); color: var(--ok); }
.tag.warn { background: var(--warn-bg); color: var(--warn); }
.tag.bad { background: var(--bad-bg); color: var(--bad); }
.tag.muted { background: var(--bg); color: var(--muted); }
.kind { font-weight: 600; }
.k-czynsz { color: #6941c6; } .k-prad { color: #c27c0e; } .k-gaz { color: #1f6fb2; } .k-woda { color: #0e8a8a; } .k-internet { color: #b4237a; }
.flash { padding: .6rem .9rem; border-radius: 8px; margin: .8rem 0; background: var(--ok-bg); color: var(--ok); }
.flash.warn { background: var(--warn-bg); color: var(--warn); }
.flash.bad { background: var(--bad-bg); color: var(--bad); }
label { display: block; font-size: .87rem; color: var(--muted); margin-bottom: .7rem; }
input, select, textarea { display: block; width: 100%; margin-top: .2rem; padding: .45rem .55rem; font: inherit; color: var(--text);
  background: var(--card); border: 1px solid var(--line); border-radius: 7px; }
input[type=checkbox], input[type=radio] { display: inline; width: auto; margin: 0 .35rem 0 0; }
input[type=file] { padding: .3rem; }
textarea.mono { font-size: .85rem; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1rem; }
.form-grid.four { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.form-grid .full { grid-column: 1 / -1; }
fieldset { border: 1px solid var(--line); border-radius: 8px; padding: .6rem .9rem; margin: 0 0 .8rem; }
legend { color: var(--muted); font-size: .85rem; padding: 0 .3rem; }
label.radio, label.checkbox { color: var(--text); display: flex; align-items: center; flex-wrap: wrap; gap: .3rem; margin-bottom: .5rem; }
.shares { display: flex; gap: 1rem; padding-left: 1.6rem; }
label.inline, form.inline { display: inline-flex; align-items: center; gap: .4rem; margin: 0; }
form.inline select, form.inline input, label.inline input { width: auto; margin: 0; }
input.tiny { width: 70px !important; } input.short { width: 120px; }
.btn { display: inline-block; padding: .45rem .9rem; border: 1px solid var(--line); background: var(--card); color: var(--text);
  border-radius: 7px; font: inherit; cursor: pointer; text-decoration: none; }
.btn:hover { border-color: var(--primary); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: var(--primary-ink); font-weight: 600; }
.btn.small { padding: .2rem .6rem; font-size: .85rem; }
.btn.link { border-color: transparent; background: none; color: var(--bad); }
.bulk { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; margin-top: .8rem; padding: .6rem; background: var(--bg); border-radius: 8px; }
.bulk input { width: auto; margin: 0; }
.upload { display: flex; gap: .8rem; flex-wrap: wrap; align-items: center; }
.upload input { width: auto; flex: 1; min-width: 220px; }
.tabs a { margin-left: .7rem; text-decoration: none; color: var(--muted); }
.tabs a.active { color: var(--text); font-weight: 600; }
.pdfview { padding: 0; overflow: hidden; min-height: 70vh; }
.pdfview iframe { width: 100%; height: 100%; min-height: 70vh; border: 0; }
.pdftext { white-space: pre-wrap; font-size: .75rem; max-height: 320px; overflow: auto; background: var(--bg); padding: .6rem; border-radius: 6px; }
details summary { cursor: pointer; color: var(--muted); margin-top: 1rem; }
table.entry input, table.entry select { min-width: 90px; margin: 0; }
table.entry .file-sm { font-size: .8rem; min-width: 170px; }
code { background: var(--bg); padding: .1rem .3rem; border-radius: 4px; }
@media (max-width: 640px) {
  .form-grid { grid-template-columns: 1fr; }
  .grid2 { grid-template-columns: 1fr; }
  .who { margin-left: 0; width: 100%; }
}