:root {
  --bg: #fbfaf7;
  --panel: #ffffff;
  --ink: #1d1d1f;
  --muted: #5f6368;
  --line: #e3e0d8;
  --accent: #2f5d8a;
  --accent-ink: #ffffff;
  --chip: #f1efe9;
  --sota: #2e7d4f;
  --caveat: #b7791f;
  --dominated: #4a6fa5;
  --open: #c0392b;
  --degenerate: #8a8f98;
  --code: #f4f2ec;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #15171a;
    --panel: #1d2024;
    --ink: #e8e6e1;
    --muted: #a3a7ad;
    --line: #33373d;
    --accent: #7fb0e0;
    --accent-ink: #0f1215;
    --chip: #262a2f;
    --sota: #5cc28a;
    --caveat: #e0a84a;
    --dominated: #86a8dc;
    --open: #ef7a6c;
    --degenerate: #8f959e;
    --code: #24282d;
  }
}
:root[data-theme="dark"] {
  --bg: #15171a; --panel: #1d2024; --ink: #e8e6e1; --muted: #a3a7ad; --line: #33373d;
  --accent: #7fb0e0; --accent-ink: #0f1215; --chip: #262a2f; --sota: #5cc28a; --caveat: #e0a84a;
  --dominated: #86a8dc; --open: #ef7a6c; --degenerate: #8f959e; --code: #24282d;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
.wrap { max-width: 980px; margin: 0 auto; padding: 0 16px; }
header.wrap { padding-top: 28px; }
h1 { font-size: 28px; margin: 0 0 6px; letter-spacing: -0.01em; }
h2 { font-size: 19px; margin: 34px 0 10px; }
h3 { font-size: 16px; margin: 18px 0 6px; }
.lede { color: var(--muted); margin: 0 0 18px; max-width: 760px; }
.hint { color: var(--muted); font-size: 14px; margin: 0 0 12px; }
a { color: var(--accent); }

/* axis selectors */
#axes { display: grid; gap: 12px; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 16px; }
.axis { display: grid; grid-template-columns: 210px 1fr; gap: 10px; align-items: start; }
.axis-name { font-weight: 600; font-size: 14px; padding-top: 6px; }
.axis-name small { display: block; font-weight: 400; color: var(--muted); font-size: 12.5px; line-height: 1.35; }
.axis-values { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.axis-values .ord { color: var(--muted); font-size: 14px; }
.pill {
  border: 1px solid var(--line); background: var(--chip); color: var(--ink);
  border-radius: 999px; padding: 6px 13px; font: inherit; font-size: 14px; cursor: pointer;
}
.pill:hover { border-color: var(--accent); }
.pill[aria-pressed="true"] { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.pill:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* result */
#result { margin-top: 18px; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 18px 18px 8px; }
.res-head { display: flex; flex-wrap: wrap; gap: 8px 12px; align-items: baseline; }
.res-title { font-size: 18px; font-weight: 650; }
.badge { display: inline-block; font-size: 12px; font-weight: 650; letter-spacing: 0.02em; text-transform: uppercase;
  border-radius: 6px; padding: 2px 8px; color: #fff; }
.b-sota { background: var(--sota); } .b-caveat { background: var(--caveat); } .b-dominated { background: var(--dominated); }
.b-open { background: var(--open); } .b-degenerate { background: var(--degenerate); }
:root[data-theme="dark"] .badge, :root:not([data-theme="light"]) .badge { color: #fff; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .badge { color: #111; } }
:root[data-theme="dark"] .badge { color: #111; }
.def { margin: 10px 0 4px; }
.def p { margin: 6px 0; }
.note { border-left: 3px solid var(--line); padding: 2px 0 2px 12px; margin: 12px 0; }
.note.open { border-color: var(--open); } .note.caveat { border-color: var(--caveat); }
.note.degenerate { border-color: var(--degenerate); } .note.dominated { border-color: var(--dominated); }
.note p { margin: 6px 0; }

.paper { border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; margin: 14px 0; }
.paper > summary { cursor: pointer; list-style: none; position: relative; padding-right: 26px; }
.paper > summary::-webkit-details-marker { display: none; }
.paper > summary::after { content: "+"; position: absolute; right: 2px; top: 0; color: var(--muted); font-size: 18px; }
.paper[open] > summary::after { content: "−"; }
.paper[open] > summary { margin-bottom: 6px; }
.paper-title { font-weight: 650; }
.paper-meta { color: var(--muted); font-size: 14px; }
.paper .role { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.kv { display: grid; grid-template-columns: 150px 1fr; gap: 4px 12px; font-size: 14.5px; margin: 10px 0; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }
.tbl-wrap { overflow-x: auto; margin: 8px 0; }
table { border-collapse: collapse; font-size: 14px; width: 100%; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-weight: 600; color: var(--muted); font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.03em; }
td.num { white-space: nowrap; font-variant-numeric: tabular-nums; }
.tag { font-size: 11px; border-radius: 4px; padding: 1px 6px; border: 1px solid var(--line); color: var(--muted); white-space: nowrap; }
.tag.est { border-style: dashed; }
.pos { font-size: 13.5px; }

/* matrix */
#matrix { overflow-x: auto; }
.mx { border-collapse: separate; border-spacing: 4px; width: auto; min-width: 640px; }
.mx th, .mx td { border: 0; padding: 0; }
.mx thead th { text-align: center; font-size: 11.5px; padding: 2px 4px; }
.mx th.row { text-align: right; padding-right: 8px; font-size: 12px; text-transform: none; letter-spacing: 0; color: var(--ink); font-weight: 500; white-space: nowrap; }
.mx th.grp { font-size: 12px; color: var(--ink); text-transform: none; letter-spacing: 0; }
.sq { width: 96px; height: 44px; border-radius: 7px; border: 2px solid transparent; cursor: pointer; font: inherit;
  font-size: 11.5px; line-height: 1.2; padding: 3px; color: #fff; overflow: hidden; }
.sq.s-sota { background: var(--sota); } .sq.s-caveat { background: var(--caveat); } .sq.s-dominated { background: var(--dominated); }
.sq.s-open { background: var(--open); } .sq.s-degenerate { background: var(--degenerate); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .sq { color: #111; } }
:root[data-theme="dark"] .sq { color: #111; }
.sq.cur { border-color: var(--ink); box-shadow: 0 0 0 2px var(--bg) inset; }
.sq:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
#legend { display: flex; flex-wrap: wrap; gap: 8px 16px; margin-top: 10px; font-size: 13.5px; color: var(--muted); }
#legend span.dot { display: inline-block; width: 11px; height: 11px; border-radius: 3px; margin-right: 6px; vertical-align: -1px; }

#method-body { font-size: 15px; }
#method-body p { margin: 8px 0; }
footer.wrap { color: var(--muted); font-size: 13px; padding-top: 24px; padding-bottom: 40px; }
.katex { font-size: 1.02em; }

@media (max-width: 640px) {
  .axis { grid-template-columns: 1fr; gap: 6px; }
  .kv { grid-template-columns: 1fr; }
  .kv dt { margin-top: 6px; }
  h1 { font-size: 24px; }
}
.paper .role .katex { text-transform: none; }