:root {
  --bg: #14161a;
  --panel: #1b1e24;
  --panel-2: #22262e;
  --line: #2e333c;
  --text: #e6e9ef;
  --dim: #99a1b0;
  --faint: #6b7280;
  --accent: #6ea8fe;
  --warm: #f0b357;
  --hot: #e8705f;
  --good: #5dc98a;
  --kept: #b48ce8;
  --radius: 8px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f7f9; --panel: #ffffff; --panel-2: #f0f2f5; --line: #dfe3e9;
    --text: #1a1d23; --dim: #5b6472; --faint: #8b93a1; --accent: #2f6fd0;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg); color: var(--text);
  font: 14px/1.5 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
h2, h3 { margin: 0 0 .5rem; font-weight: 600; }
h3 { font-size: .95rem; }
a { color: var(--accent); }

/* ── topbar ─────────────────────────────────────────────────────── */
.topbar {
  display: flex; align-items: center; gap: 1.5rem;
  padding: .6rem 1rem; background: var(--panel);
  border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 20;
}
.brand { display: flex; align-items: center; gap: .5rem; font-weight: 650; }
.logo { color: var(--accent); font-size: 1.2rem; }
.readonly-badge {
  font-size: .68rem; font-weight: 600; letter-spacing: .04em; text-transform: uppercase;
  color: var(--warm); border: 1px solid var(--warm); border-radius: 999px;
  padding: .1rem .5rem; opacity: .9;
}
.tabs { display: flex; gap: .15rem; flex: 1; }
.tab {
  background: none; border: 0; color: var(--dim); padding: .4rem .75rem;
  border-radius: var(--radius); cursor: pointer; font: inherit;
}
.tab:hover { background: var(--panel-2); color: var(--text); }
.tab.active { background: var(--panel-2); color: var(--text); font-weight: 600; }
.topbar-right { display: flex; align-items: center; gap: .6rem; }
.source-badge { font-size: .78rem; color: var(--dim); }

/* ── buttons ────────────────────────────────────────────────────── */
.btn {
  background: var(--panel-2); color: var(--text); border: 1px solid var(--line);
  border-radius: var(--radius); padding: .38rem .75rem; cursor: pointer; font: inherit;
}
.btn:hover:not(:disabled) { border-color: var(--accent); }
.btn:disabled { opacity: .4; cursor: not-allowed; }
.btn.small { padding: .22rem .5rem; font-size: .82rem; }
.btn.ghost { background: none; }
.btn.danger:not(:disabled) { color: var(--hot); border-color: var(--hot); }

/* ── layout ─────────────────────────────────────────────────────── */
main { padding: 1rem; max-width: 1800px; margin: 0 auto; }
.view { display: none; }
.view.active { display: block; }
.card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: .9rem; margin-bottom: 1rem;
}
.hint { color: var(--dim); font-size: .82rem; margin: .1rem 0 .7rem; }

/* ── dashboard ──────────────────────────────────────────────────── */
.split-hero {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden; margin-bottom: 1rem;
}
.split-cell { background: var(--panel); padding: 1rem 1.1rem; }
.split-cell .label {
  font-size: .7rem; letter-spacing: .07em; text-transform: uppercase; color: var(--faint);
}
.split-cell .value { font-size: 1.9rem; font-weight: 650; margin-top: .2rem; }
.split-cell .sub { font-size: .78rem; color: var(--dim); }
.split-cell.kept .value { color: var(--kept); }
.split-cell.available .value { color: var(--good); }

.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: .6rem; margin-bottom: 1rem; }
.tile { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: .7rem .8rem; }
.tile .label { font-size: .7rem; letter-spacing: .06em; text-transform: uppercase; color: var(--faint); }
.tile .value { font-size: 1.2rem; font-weight: 600; margin-top: .15rem; }
.tile .sub { font-size: .75rem; color: var(--dim); }

.chart-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.card.wide { grid-column: 1 / -1; }
.chart { min-height: 40px; }

.bar-row { display: grid; grid-template-columns: 150px 1fr 90px; gap: .5rem; align-items: center; margin-bottom: .3rem; font-size: .82rem; }
.bar-track { background: var(--panel-2); border-radius: 3px; height: 15px; overflow: hidden; display: flex; }
.bar-fill { height: 100%; background: var(--accent); }
.bar-fill.never { background: var(--warm); }
.bar-fill.kept { background: var(--kept); }
.bar-num { text-align: right; color: var(--dim); font-variant-numeric: tabular-nums; }
.bar-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.stack { display: flex; height: 30px; border-radius: 4px; overflow: hidden; margin-bottom: .5rem; }
.stack > div { display: flex; align-items: center; justify-content: center; font-size: .72rem; color: #10131a; font-weight: 600; }
.legend { display: flex; gap: 1rem; font-size: .8rem; color: var(--dim); flex-wrap: wrap; }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: .3rem; }

/* ── grid ───────────────────────────────────────────────────────── */
.grid-layout { display: grid; grid-template-columns: 250px 1fr; gap: 1rem; align-items: start; }
.filter-rail {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: .8rem; position: sticky; top: 60px; max-height: calc(100vh - 76px); overflow: auto;
}
.rail-section { margin-bottom: .9rem; }
.rail-label { display: block; font-size: .7rem; letter-spacing: .06em; text-transform: uppercase; color: var(--faint); margin-bottom: .3rem; }
.filter-rail input[type=search], .filter-rail select {
  width: 100%; background: var(--panel-2); color: var(--text);
  border: 1px solid var(--line); border-radius: 6px; padding: .32rem .45rem; font: inherit;
}
.checklist { max-height: 190px; overflow: auto; font-size: .84rem; }
.checklist label, .switch { display: flex; align-items: center; gap: .4rem; padding: .1rem 0; cursor: pointer; }
.weights label { display: block; font-size: .78rem; color: var(--dim); margin-top: .35rem; }
.weights input[type=range] { width: 100%; }

.grid-main { min-width: 0; }
.grid-toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: .5rem; gap: 1rem; flex-wrap: wrap; }
.grid-summary { font-size: .85rem; color: var(--dim); }
.grid-summary b { color: var(--text); }
.grid-actions { display: flex; gap: .4rem; }

.table-wrap { overflow-x: auto; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); }
table { border-collapse: collapse; width: 100%; font-size: .84rem; }
th, td { padding: .38rem .55rem; text-align: left; white-space: nowrap; border-bottom: 1px solid var(--line); }
th { position: sticky; top: 0; background: var(--panel-2); font-weight: 600; font-size: .76rem; letter-spacing: .03em; text-transform: uppercase; color: var(--dim); cursor: pointer; user-select: none; z-index: 1; }
th.sorted { color: var(--accent); }
tbody tr:hover { background: var(--panel-2); }
tbody tr.kept-row { opacity: .72; }
td.num { text-align: right; font-variant-numeric: tabular-nums; }
td.title-cell { max-width: 380px; overflow: hidden; text-overflow: ellipsis; }
.title-link { cursor: pointer; }
.title-link:hover { text-decoration: underline; }
.sub-title { color: var(--faint); font-size: .78rem; }

.score-pill { display: inline-block; min-width: 44px; text-align: center; padding: .08rem .35rem; border-radius: 4px; font-variant-numeric: tabular-nums; font-weight: 600; }
.flag { font-size: .66rem; padding: .04rem .28rem; border-radius: 3px; margin-left: .25rem; border: 1px solid; }
.flag.pre_history { color: var(--warm); border-color: var(--warm); }
.flag.rejected { color: var(--hot); border-color: var(--hot); }
.flag.duplicate { color: var(--accent); border-color: var(--accent); }
.flag.kept { color: var(--kept); border-color: var(--kept); }
.flag.multi_part, .flag.history_gap { color: var(--faint); border-color: var(--faint); }
.flag.added_corrected { color: var(--accent); border-color: var(--accent); opacity: .8; }

.pager { display: flex; gap: .6rem; align-items: center; justify-content: center; padding: .7rem; color: var(--dim); font-size: .85rem; }

/* ── drawer ─────────────────────────────────────────────────────── */
.scrim { position: fixed; inset: 0; background: rgba(0,0,0,.45); z-index: 40; }
.drawer {
  position: fixed; top: 0; right: 0; bottom: 0; width: min(680px, 92vw);
  background: var(--panel); border-left: 1px solid var(--line);
  z-index: 50; overflow: auto; padding: 1rem;
}
.drawer-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; margin-bottom: .8rem; }
.kv { display: grid; grid-template-columns: 190px 1fr; gap: .2rem .8rem; font-size: .85rem; margin-bottom: 1rem; }
.kv dt { color: var(--dim); }
.kv dd { margin: 0; word-break: break-all; }
.comp-row { display: grid; grid-template-columns: 110px 1fr 46px; gap: .5rem; align-items: center; font-size: .8rem; margin-bottom: .2rem; }
.comp-track { background: var(--panel-2); height: 8px; border-radius: 3px; overflow: hidden; }
.comp-fill { height: 100%; background: var(--accent); }

/* ── misc ───────────────────────────────────────────────────────── */
.banner { padding: .55rem 1rem; font-size: .85rem; border-bottom: 1px solid; }
.banner.warn { background: rgba(240,179,87,.12); border-color: var(--warm); color: var(--warm); }
.banner.info { background: rgba(110,168,254,.1); border-color: var(--accent); color: var(--accent); }
.lib-rules label { display: flex; align-items: center; gap: .5rem; padding: .25rem 0; font-size: .87rem; }
.mark { display: grid; grid-template-columns: 1fr auto; gap: .5rem; padding: .5rem 0; border-bottom: 1px solid var(--line); align-items: center; }
.mark .meta { font-size: .78rem; color: var(--dim); }
.empty { color: var(--faint); font-size: .87rem; padding: .6rem 0; }
.dupe-group { border-bottom: 1px solid var(--line); padding: .55rem 0; }
.dupe-copies { display: flex; gap: 1rem; flex-wrap: wrap; font-size: .82rem; color: var(--dim); margin-top: .2rem; }
.scatter { width: 100%; height: 260px; }
.scatter circle { cursor: pointer; }
@media (max-width: 1000px) {
  .chart-grid { grid-template-columns: 1fr; }
  .grid-layout { grid-template-columns: 1fr; }
  .filter-rail { position: static; max-height: none; }
  .split-hero { grid-template-columns: 1fr; }
}