:root {
  --bg: #ffffff;
  --bg-alt: #f6f7f9;
  --border: #e2e5ea;
  --text: #1a1d23;
  --text-muted: #6b7280;
  /* brand palette, ~/Desktop/local/dev/_shared/color-palette.png — see ai-discoverability
     profile note: fails as a categorical data-viz set (4/5 colors read as near-identical low-
     chroma blues, no green), so it's applied to UI chrome/status here, not the trends chart */
  --accent: #47607F; /* BLUE_DARK */
  --row-hover: #f0f2f5;
  --good: #1a7f4b;
  --good-bg: #e6f6ee;
  --warn: #9a6700;
  --warn-bg: #fff6e0;
  --bad: #DB1C05; /* brand RED */
  --bad-bg: #fbe8e6;
  --sans: "Inter", system-ui, -apple-system, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;

  /* dataviz categorical palette (validated, see dataviz skill references/palette.md) */
  --series-1: #2a78d6; /* blue */
  --series-2: #eb6834; /* orange */
  --series-3: #1baf7a; /* aqua */
  --series-4: #eda100; /* yellow */
  --series-5: #e87ba4; /* magenta */
  --series-6: #008300; /* green */
  --series-7: #4a3aa7; /* violet */
  --series-8: #e34948; /* red */
  --chart-grid: #e1e0d9;
  --chart-axis: #c3c2b7;
  --chart-muted: #898781;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a;
    --bg-alt: #1b1e24;
    --border: #2a2e37;
    --text: #e7e9ee;
    --text-muted: #9aa1ad;
    --accent: #70859F; /* BLUE_MED — better dark-surface text contrast than BLUE_DARK (4.78:1 vs 2.80:1) */
    --row-hover: #262c35;
    --good: #4fd68b;
    --good-bg: #123726;
    --warn: #e2b23a;
    --warn-bg: #3a2e0c;
    --bad: #e66050; /* brand RED, lightened for 5.3:1 dark-surface text contrast */
    --bad-bg: #401715;

    --series-1: #3987e5;
    --series-2: #d95926;
    --series-3: #199e70;
    --series-4: #c98500;
    --series-5: #d55181;
    --series-6: #008300;
    --series-7: #9085e9;
    --series-8: #e66767;
    --chart-grid: #2c2c2a;
    --chart-axis: #383835;
    --chart-muted: #898781;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 2px solid var(--bad); outline-offset: 2px; border-radius: 2px;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
}

.brand { font-weight: 600; font-size: 15px; letter-spacing: -0.01em; white-space: nowrap; color: var(--text); text-decoration: none; }
.brand-sub { font-family: var(--mono); font-weight: 400; color: var(--text-muted); font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; }

#search {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--bg-alt);
  color: var(--text);
  font-family: var(--mono);
  font-size: 13.5px;
}
#search:focus { outline: none; border-color: var(--accent); }

.result-count { color: var(--text-muted); font-size: 13px; white-space: nowrap; }

.page-intro {
  padding: 9px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
}
.page-intro h1 {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.03em;
  margin: 0;
  display: inline;
}
.page-intro-sub {
  font-size: 12px;
  color: var(--text-muted);
  margin: 3px 0 0;
  line-height: 1.5;
  max-width: 900px;
}

.layout {
  display: grid;
  grid-template-columns: 220px 1fr 380px;
  gap: 0;
  height: calc(100vh - 49px - 58px);
}
.layout[hidden], .trends-view[hidden] {
  display: none;
}

.filters {
  border-right: 1px solid var(--border);
  padding: 16px;
  overflow-y: auto;
}
.filter-group { margin-bottom: 22px; }
.filter-group h3 {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--accent);
  margin: 0 0 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}
.facet-list { display: flex; flex-direction: column; gap: 2px; }
.facet-item {
  display: flex;
  justify-content: space-between;
  gap: 6px;
  padding: 5px 7px;
  border-radius: 3px;
  cursor: pointer;
  font-size: 13px;
}
.facet-item:hover { background: var(--row-hover); }
.facet-item.active { background: var(--accent); color: #fff; }
.facet-count { font-family: var(--mono); color: var(--text-muted); font-variant-numeric: tabular-nums; font-size: 12px; }
.facet-item.active .facet-count { color: #fff; }

#frameworkSelect, #minStars, #securityMdSelect, #lockfileSelect {
  width: 100%;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--bg-alt);
  color: var(--text);
  font-family: var(--mono);
  font-size: 12.5px;
}

.quick-filter-btn {
  margin-top: 10px;
  width: 100%;
  text-align: left;
  padding: 8px 10px;
  border: 1px solid var(--bad);
  border-radius: 3px;
  background: var(--bad-bg);
  color: var(--bad);
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  line-height: 1.4;
}
.quick-filter-btn:hover { filter: brightness(0.97); }
.quick-filter-btn.active { outline: 2px solid var(--bad); outline-offset: 1px; }

.muted { color: var(--text-muted); }
.small { font-size: 12px; line-height: 1.5; }

.app-footer {
  padding: 10px 16px; text-align: center; font-family: var(--mono); font-size: 11px; color: var(--text-muted);
  border-top: 1px solid var(--border);
}
.app-footer a { color: var(--text-muted); text-decoration: none; }
.app-footer a:hover { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }

.results { overflow-y: auto; padding: 0 16px; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
thead th {
  position: sticky;
  top: 0;
  background: var(--bg);
  text-align: left;
  padding: 8px 8px;
  border-bottom: 1px solid var(--text);
  color: var(--text-muted);
  font-family: var(--mono);
  font-weight: 500;
  font-size: 10.5px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
tbody tr { cursor: pointer; border-bottom: 1px solid var(--border); }
tbody tr:hover { background: var(--row-hover); }
tbody tr.selected { background: var(--row-hover); }
tbody td { padding: 8px; vertical-align: top; }
.repo-name { font-family: var(--mono); font-size: 12.5px; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 7px;
  border-radius: 2px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  white-space: nowrap;
}
.badge-good { background: var(--good-bg); color: var(--good); }
.badge-warn { background: var(--warn-bg); color: var(--warn); }
.badge-bad { background: var(--bad-bg); color: var(--bad); }
.badge-neutral { background: var(--bg-alt); color: var(--text-muted); }

.pager {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 4px 24px;
  font-size: 13px;
}
.pager button {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--bg-alt);
  color: var(--text);
  font-family: var(--sans);
  cursor: pointer;
}
.pager button:disabled { opacity: 0.4; cursor: default; }
.pager span { font-family: var(--mono); font-size: 12px; color: var(--text-muted); }

.detail-panel {
  border-left: 1px solid var(--border);
  padding: 16px;
  overflow-y: auto;
}
.detail-placeholder { color: var(--text-muted); font-size: 13px; padding-top: 40px; text-align: center; }

.detail-panel h2 {
  font-size: 15px;
  font-weight: 500;
  font-family: var(--mono);
  margin: 0 0 4px;
  word-break: break-all;
}
.detail-panel a { color: var(--accent); }
.detail-section { margin-top: 18px; }
.detail-section h4 {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin: 0 0 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}
.evidence-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0; }
.evidence-item {
  border: 0;
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  padding: 7px 0;
  font-size: 12px;
}
.evidence-id { font-family: var(--mono); font-weight: 500; }
.evidence-meta { color: var(--text-muted); font-size: 11px; margin-top: 2px; }
.fact-card, .reasoning-text {
  white-space: pre-wrap;
  font-family: var(--mono);
  font-size: 12px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 8px;
  line-height: 1.5;
}
.precision-note {
  margin-top: 6px;
  font-size: 12px;
  padding: 8px 10px;
  border-radius: 3px;
  border: 1px solid currentColor;
}

@media (max-width: 1000px) {
  .layout { grid-template-columns: 1fr; height: auto; }
  .filters, .detail-panel { border: none; border-bottom: 1px solid var(--border); }
}

/* --- Tabs --- */
.tabs { display: flex; gap: 2px; background: var(--bg-alt); border-radius: 4px; padding: 2px; }
.tab-btn {
  border: none;
  background: transparent;
  color: var(--text-muted);
  padding: 6px 14px;
  border-radius: 3px;
  font-family: var(--sans);
  font-size: 12.5px;
  font-weight: 500;
  cursor: pointer;
}
.tab-btn.active { background: var(--bg); color: var(--text); box-shadow: 0 0 0 1px var(--border); }

/* --- Trends view --- */
.trends-view { padding: 20px 28px; max-width: 1100px; margin: 0 auto; }
.trends-controls {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 18px;
}
.seg-control { display: flex; background: var(--bg-alt); border-radius: 4px; padding: 2px; }
.seg-control button {
  border: none;
  background: transparent;
  color: var(--text-muted);
  padding: 6px 14px;
  border-radius: 3px;
  font-family: var(--sans);
  font-size: 12.5px;
  font-weight: 500;
  cursor: pointer;
}
.seg-control button.active { background: var(--bg); color: var(--text); box-shadow: 0 0 0 1px var(--border); }
.cumulative-toggle { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text); cursor: pointer; }

.trends-chart {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 16px 20px 8px;
}
.trends-chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart-line { fill: none; stroke-width: 2px; stroke-linejoin: round; stroke-linecap: round; }
.chart-line.incomplete-segment { stroke-dasharray: 4 4; }
.chart-dot { r: 4; stroke: var(--bg); stroke-width: 2px; }
.chart-gridline { stroke: var(--chart-grid); stroke-width: 1px; }
.chart-axis-text { fill: var(--chart-muted); font-size: 10.5px; font-family: var(--sans); }
.chart-crosshair { stroke: var(--chart-axis); stroke-width: 1px; }

.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}
.legend-item { display: flex; align-items: center; gap: 6px; font-size: 12.5px; color: var(--text); cursor: pointer; user-select: none; }
.legend-item.dimmed { opacity: 0.35; }
.legend-swatch { width: 10px; height: 10px; border-radius: 2px; display: inline-block; }

.chart-tooltip {
  position: absolute;
  pointer-events: none;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 8px 10px;
  font-family: var(--mono);
  font-size: 12px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
  white-space: nowrap;
  z-index: 5;
}
.chart-tooltip .tt-title { font-weight: 600; margin-bottom: 4px; color: var(--text); }
.chart-tooltip .tt-row { display: flex; align-items: center; gap: 6px; color: var(--text-muted); }
.chart-tooltip .tt-row .tt-value { color: var(--text); font-variant-numeric: tabular-nums; margin-left: auto; padding-left: 12px; }

.chart-note {
  font-size: 11.5px;
  color: var(--text-muted);
  margin-top: 8px;
}

.chart-methodology-note {
  background: var(--warn-bg);
  color: var(--warn);
  border: 1px solid var(--warn);
  border-radius: 3px;
  padding: 9px 12px;
  font-family: var(--sans);
  font-size: 12.5px;
  line-height: 1.5;
  margin-top: 10px;
}
.chart-methodology-note code {
  font-family: var(--mono);
  background: rgba(0,0,0,0.06);
  padding: 1px 4px;
  border-radius: 2px;
}

.table-toggle-btn {
  margin-top: 14px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--bg-alt);
  color: var(--text);
  font-family: var(--sans);
  font-size: 12.5px;
  cursor: pointer;
}

.trends-table-wrap { margin-top: 14px; overflow-x: auto; }
#trendsTable { width: 100%; border-collapse: collapse; font-family: var(--mono); font-size: 12px; }
#trendsTable th, #trendsTable td {
  border: 1px solid var(--border);
  padding: 5px 8px;
  text-align: right;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
#trendsTable th { color: var(--text-muted); font-weight: 500; text-transform: uppercase; font-size: 10.5px; letter-spacing: 0.04em; }
#trendsTable th:first-child, #trendsTable td:first-child { text-align: left; font-variant-numeric: normal; }