:root {
  color-scheme: light dark;
  --bg: #f9f9f7; --card: #ffffff; --fg: #0b0b0b; --muted: #52514e; --rule: #e1e0d9; --link: #1c5cab;
  --blue: #3f90da; --orange: #ffa90e; --grey: #c9cdcd; --chip: #eef0ee;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #111; --card: #1a1a1a; --fg: #eee; --muted: #b5b4ad; --rule: #333; --link: #86b6ef;
          --grey: #4a4f4f; --chip: #262826; }
  main.narrow figure svg { background: #f9f9f7; border-radius: 6px; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.55 system-ui, sans-serif; }
a { color: var(--link); }
nav.top { display: flex; gap: 20px; align-items: baseline; padding: 12px 20px; border-bottom: 1px solid var(--rule);
          font-size: 0.95rem; flex-wrap: wrap; }
nav.top .brand { font-weight: 650; margin-right: auto; }
nav.top a { text-decoration: none; color: var(--muted); }
nav.top a[aria-current] { color: var(--fg); font-weight: 600; }
main { margin: 0 auto; padding: 28px 20px 80px; }
main.narrow { max-width: 820px; }
main.wide { max-width: 1180px; }
h1 { font-size: 1.8rem; line-height: 1.25; margin: 0 0 8px; }
h2 { margin-top: 2.2em; border-top: 1px solid var(--rule); padding-top: 1em; }
.lede, figcaption { color: var(--muted); }
.lede { max-width: 820px; }
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 24px 0; }
.tiles div { border: 1px solid var(--rule); border-radius: 8px; padding: 12px; background: var(--card); }
.tiles b { display: block; font-size: 1.6rem; font-variant-numeric: tabular-nums; }
.tiles span { color: var(--muted); font-size: 0.9rem; }
figure { margin: 1em 0; } main.narrow figure svg { width: 100%; max-width: 680px; height: auto; display: block; }
table { border-collapse: collapse; width: 100%; font-size: 0.92rem; }
th, td { text-align: left; padding: 4px 8px; border-bottom: 1px solid var(--rule); }

/* Dashboard */
.filters { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px 14px; padding: 14px;
           border: 1px solid var(--rule); border-radius: 10px; background: var(--card); }
.filters label { font-size: 0.8rem; color: var(--muted); display: block; }
.filters .search { grid-column: 1 / -1; }
.filters input[type=search], .filters input[type=date], .filters select, .results select {
  display: block; width: 100%; margin-top: 3px; padding: 7px 8px; font: inherit; font-size: 0.92rem; color: var(--fg);
  background: var(--bg); border: 1px solid var(--rule); border-radius: 6px; }
.filters .search input { font-size: 1rem; padding: 9px 10px; }
.checks { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 6px 18px; align-items: center; }
.filters label.check { display: flex; gap: 6px; align-items: center; color: var(--fg); font-size: 0.9rem; }
button { font: inherit; font-size: 0.9rem; cursor: pointer; color: var(--fg); background: var(--bg);
         border: 1px solid var(--rule); border-radius: 6px; padding: 6px 12px; }
button:hover { border-color: var(--muted); }
#reset { margin-left: auto; }
.charts { display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: auto 1fr; gap: 14px; margin: 18px 0; }
.charts figure.field { grid-column: 2; grid-row: 1 / 3; }
.charts figure { margin: 0; padding: 12px; border: 1px solid var(--rule); border-radius: 10px; background: var(--card); }
.charts figcaption { font-size: 0.85rem; color: var(--fg); font-weight: 600; margin-bottom: 6px; }
.hint { font-weight: 400; color: var(--muted); }
.chart svg { width: 100%; max-width: 560px; height: auto; display: block; overflow: visible; }
.chart text { fill: var(--muted); font-size: 11px; }
.chart .label { fill: var(--fg); }
.chart .hit { fill: transparent; cursor: pointer; }
.chart .row:hover .mark, .chart .row:focus-within .mark, .chart .sel { opacity: 1; }
.chart .hit:focus-visible { outline: 2px solid var(--link); outline-offset: -2px; }
.chart .dim { opacity: 0.35; }
.tip { position: fixed; pointer-events: none; background: var(--fg); color: var(--bg); font-size: 0.8rem;
       padding: 4px 8px; border-radius: 5px; z-index: 10; max-width: 320px; }
.results .bar { display: flex; justify-content: space-between; align-items: end; gap: 12px; margin: 8px 0;
                flex-wrap: wrap; }
#count { font-weight: 650; }
.actions { display: flex; gap: 10px; align-items: end; }
.actions label { font-size: 0.8rem; color: var(--muted); }
.papers { list-style: none; padding: 0; margin: 0; }
.papers li { border-top: 1px solid var(--rule); padding: 12px 2px; }
.papers .t { font-weight: 600; text-decoration: none; color: var(--fg); }
.papers .t:hover { color: var(--link); text-decoration: underline; }
.papers .au, .papers .meta { font-size: 0.86rem; color: var(--muted); }
.chips { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 5px; }
.chip { font-size: 0.76rem; padding: 1px 7px; border-radius: 10px; background: var(--chip); color: var(--fg);
        border: 1px solid transparent; }
.chip.phys { border-color: var(--orange); }
.chip.dup { background: transparent; border-color: var(--rule); color: var(--muted); }
.papers details { margin-top: 6px; font-size: 0.9rem; }
.papers summary { cursor: pointer; color: var(--muted); font-size: 0.85rem; }
.papers details p { margin: 6px 0; max-width: 900px; }
.papers dl { display: grid; grid-template-columns: max-content 1fr; gap: 2px 12px; font-size: 0.85rem; margin: 6px 0; }
.papers dt { color: var(--muted); }
.papers dd { margin: 0; }
mark { background: #ffe39a; color: inherit; padding: 0; }
.more { display: block; margin: 16px auto; }
.more[hidden] { display: none; }
@media (max-width: 900px) {
  .filters { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .charts { grid-template-columns: 1fr; }
  .charts figure.field { grid-column: 1; grid-row: auto; }
}