:root {
  color-scheme: light dark;
  --bg: #f6f7f9;
  --panel: #ffffff;
  --ink: #1c2530;
  --muted: #61708a;
  --line: #dfe4ec;
  --accent: #2160d3;
  --accent-soft: #e8f0fe;
  --good: #1c7c54;
  --warn: #a05a00;
  --bad: #b3261e;
  --radius: 12px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #10151c;
    --panel: #171e28;
    --ink: #e7edf5;
    --muted: #93a2ba;
    --line: #263140;
    --accent: #5b8dfa;
    --accent-soft: #1c2b47;
    --good: #4cc38a;
    --warn: #e0a84c;
    --bad: #f2685f;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 15px/1.5 "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--ink);
}
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 28px; border-bottom: 1px solid var(--line); background: var(--panel);
  position: sticky; top: 0; z-index: 20;
}
.brand { display: flex; gap: 14px; align-items: center; }
.logo { font-size: 30px; color: var(--accent); }
h1 { font-size: 19px; margin: 0; }
.tagline { margin: 2px 0 0; color: var(--muted); font-size: 13px; }
main { max-width: 1180px; margin: 24px auto 80px; padding: 0 20px; display: grid; gap: 18px; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; }
h2 { font-size: 15px; margin: 0 0 14px; letter-spacing: .02em; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 12px; }
label { display: flex; flex-direction: column; gap: 5px; font-size: 13px; color: var(--muted); }
label.full { margin-top: 12px; }
input, select, textarea {
  font: inherit; color: var(--ink); background: var(--bg);
  border: 1px solid var(--line); border-radius: 8px; padding: 9px 11px;
}
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.actions { display: flex; gap: 10px; align-items: center; margin-top: 16px; }
button {
  font: inherit; border-radius: 8px; padding: 10px 18px; cursor: pointer;
  border: 1px solid transparent; background: var(--accent); color: #fff; font-weight: 600;
}
button.ghost { background: transparent; color: var(--accent); border-color: var(--line); font-weight: 500; }
button:disabled { opacity: .55; cursor: wait; }
.muted { color: var(--muted); font-size: 13px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { border: 1px solid var(--line); border-radius: 999px; padding: 5px 12px; font-size: 12.5px; display: inline-flex; gap: 7px; align-items: center; }
.dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }
.dot.ok { background: var(--good); } .dot.partial { background: var(--warn); }
.dot.unavailable, .dot.error { background: var(--bad); } .dot.disabled { background: var(--muted); }
.controls { display: flex; flex-wrap: wrap; gap: 12px; align-items: end; margin-bottom: 14px; }
.controls label { min-width: 120px; }
.spacer { flex: 1; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; }
table { border-collapse: collapse; width: 100%; font-size: 13.5px; }
th, td { padding: 9px 12px; text-align: left; border-bottom: 1px solid var(--line); white-space: nowrap; }
tbody tr { cursor: pointer; }
tbody tr:hover { background: var(--accent-soft); }
thead th { position: sticky; top: 0; background: var(--panel); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); z-index: 5; }
.score-pill { display: inline-block; min-width: 44px; text-align: center; padding: 3px 8px; border-radius: 999px; font-weight: 700; font-size: 12.5px; color: #fff; }
.s-hi { background: var(--good); } .s-md { background: var(--accent); } .s-lo { background: var(--muted); }
.tag { font-size: 11px; padding: 2px 7px; border-radius: 6px; border: 1px solid var(--line); }
.tag.measured { color: var(--good); border-color: var(--good); }
.tag.proxy { color: var(--warn); border-color: var(--warn); }
.tag.na { color: var(--muted); }
.badge { font-size: 11px; border: 1px solid var(--line); border-radius: 6px; padding: 2px 8px; color: var(--muted); font-weight: 500; }
.drawer {
  position: fixed; top: 0; right: 0; bottom: 0; width: min(620px, 96vw);
  background: var(--panel); border-left: 1px solid var(--line);
  box-shadow: -18px 0 40px rgba(0,0,0,.18); overflow-y: auto; padding: 20px 24px; z-index: 30;
}
.drawer-head { display: flex; justify-content: space-between; align-items: start; gap: 12px; }
.factor { border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; margin-bottom: 10px; }
.factor-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.factor-name { font-weight: 600; text-transform: capitalize; }
.bar { height: 8px; border-radius: 99px; background: var(--line); overflow: hidden; margin: 8px 0; }
.bar > span { display: block; height: 100%; background: var(--accent); }
.factor ul { margin: 6px 0 0; padding-left: 18px; color: var(--muted); font-size: 12.8px; }
.kw-lead { margin-top: 16px; font-size: 12px; }
.kw-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.kw-chips span { border: 1px solid var(--line); border-radius: 7px; padding: 3px 8px; font-size: 12px; }
.model-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 10px; }
.error-box { border: 1px solid var(--bad); color: var(--bad); border-radius: 10px; padding: 12px 14px; font-size: 13.5px; }
.empty-box { border: 1px dashed var(--line); border-radius: 10px; padding: 26px; text-align: center; color: var(--muted); }
.import-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: end; margin-top: 12px; }
.file-label { flex: 1; min-width: 240px; }
.file-label input[type="file"] { padding: 6px 8px; background: var(--panel); }
.check-row { flex-direction: row; align-items: center; gap: 8px; margin-top: 10px; color: var(--ink); font-size: 13px; }
.check-row input { width: 16px; height: 16px; margin: 0; }
tr.row-strong td:first-child { box-shadow: inset 3px 0 0 var(--good); }
th.sortable { cursor: pointer; user-select: none; }
th.sortable:hover { color: var(--ink); }
th.sortable:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
th.sortable.asc::after { content: " ▲"; font-size: 9px; }
th.sortable.desc::after { content: " ▼"; font-size: 9px; }
button.fav {
  background: none; border: none; color: var(--muted); padding: 2px 4px;
  font-size: 16px; line-height: 1; border-radius: 6px; font-weight: 400;
}
button.fav:hover { color: var(--warn); }
button.fav.on { color: #e8a013; }
.visually-hidden { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.tag.call-strong, .badge.call-strong { color: var(--good); border-color: var(--good); }
.tag.call-qualified, .badge.call-qualified { color: var(--accent); border-color: var(--accent); }
.tag.call-insufficient, .badge.call-insufficient { color: var(--muted); }
.tag.observed, .tag.imported { color: var(--good); border-color: var(--good); }
.tag.provider_estimate, .tag.derived { color: var(--accent); border-color: var(--accent); }
.tag.heuristic { color: var(--warn); border-color: var(--warn); }
.tag.proxy { color: var(--warn); border-color: var(--warn); }
.tag.unavailable { color: var(--muted); }
/* white text fails contrast on the lighter dark-mode fills; override after the base rules */
@media (prefers-color-scheme: dark) {
  button:not(.ghost):not(.fav) { color: #0a1422; }
  .score-pill { color: #0a1422; }
}
@media (max-width: 700px) {
  .topbar { padding: 14px 16px; }
  main { padding: 0 10px; }
  .panel { padding: 16px; }
}