/* ---- design tokens (reference dataviz palette) ---- */
:root {
  --page: #f9f9f7;
  --surface-1: #fcfcfb;
  --text-primary: #0b0b0b;
  --text-secondary: #52514e;
  --text-muted: #898781;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --series-1: #2a78d6;   /* host / primary */
  --series-2: #1baf7a;   /* guest */
  --series-3: #eda100;
  --series-4: #008300;
  --series-5: #4a3aa7;
  --series-6: #e34948;
  --series-7: #e87ba4;
  --series-8: #eb6834;
  --seq-100: #cde2fb; --seq-200: #9ec5f4; --seq-300: #6da7ec;
  --seq-400: #3987e5; --seq-500: #256abf; --seq-600: #184f95; --seq-700: #0d366b;
  --div-neg: #d03b3b;    /* diverging warm pole (negative valence) */
  --div-mid: #f0efec;
  --div-pos: #2a78d6;    /* diverging cool pole (positive valence) */
  --accent: #2a78d6;
  --wash: rgba(42, 120, 214, 0.10);
}
@media (prefers-color-scheme: dark) {
  :root {
    --page: #0d0d0d;
    --surface-1: #1a1a19;
    --text-primary: #ffffff;
    --text-secondary: #c3c2b7;
    --text-muted: #898781;
    --grid: #2c2c2a;
    --axis: #383835;
    --border: rgba(255, 255, 255, 0.10);
    --series-1: #3987e5;
    --series-2: #199e70;
    --series-3: #c98500;
    --series-4: #008300;
    --series-5: #9085e9;
    --series-6: #e66767;
    --series-7: #d55181;
    --series-8: #d95926;
    --div-neg: #d03b3b;
    --div-mid: #383835;
    --div-pos: #3987e5;
    --accent: #3987e5;
    --wash: rgba(57, 135, 229, 0.14);
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--page);
  color: var(--text-primary);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.site-header {
  display: flex; flex-wrap: wrap; align-items: flex-end; gap: 16px 32px;
  padding: 24px 28px 0;
  max-width: 1240px; margin: 0 auto;
}
.brand h1 { margin: 0; font-size: 26px; letter-spacing: -0.02em; }
.brand h1 span { color: var(--text-muted); font-weight: 400; }
.tagline { margin: 2px 0 0; color: var(--text-secondary); font-size: 13px; }
.search-box { margin-left: auto; }
.search-box input {
  background: var(--surface-1); color: var(--text-primary);
  border: 1px solid var(--axis); border-radius: 10px; padding: 7px 12px;
  font: inherit; font-size: 14px; width: 320px; max-width: 60vw;
}
.search-box input:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }
.tabs { display: flex; gap: 4px; flex-wrap: wrap; }
@media (max-width: 900px) { .search-box { order: 3; width: 100%; margin-left: 0; } }

mark { background: var(--wash); color: inherit; border-radius: 3px; padding: 0 1px; font-weight: 600; }
.result-group { margin-bottom: 4px; }
.result-row { padding: 7px 0; border-bottom: 1px solid var(--grid); font-size: 14px; }
.result-row .where { color: var(--text-muted); font-size: 12.5px; }
.result-row a.jump { font-weight: 500; }
.result-snippet { color: var(--text-secondary); margin: 2px 0 0; font-size: 13.5px; }
.tabs a {
  padding: 8px 14px; border-radius: 8px 8px 0 0; color: var(--text-secondary);
  border-bottom: 2px solid transparent; font-weight: 500;
}
.tabs a:hover { background: var(--wash); text-decoration: none; }
.tabs a.active { color: var(--text-primary); border-bottom-color: var(--accent); }

main { max-width: 1240px; margin: 0 auto; padding: 20px 28px 48px; }
.loading { color: var(--text-muted); padding: 48px 0; text-align: center; }

.site-footer {
  max-width: 1240px; margin: 0 auto; padding: 16px 28px 40px;
  color: var(--text-muted); font-size: 13px; border-top: 1px solid var(--grid);
}

/* ---- layout primitives ---- */
.kpi-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 20px; }
.stat-tile {
  background: var(--surface-1); border: 1px solid var(--border); border-radius: 12px;
  padding: 14px 16px;
}
.stat-tile .label { color: var(--text-secondary); font-size: 13px; }
.stat-tile .value { font-size: 28px; font-weight: 600; margin-top: 2px; }
.stat-tile .sub { color: var(--text-muted); font-size: 12px; margin-top: 2px; }

.card {
  background: var(--surface-1); border: 1px solid var(--border); border-radius: 12px;
  padding: 18px 20px 14px; margin-bottom: 20px;
}
.card h2 { margin: 0 0 2px; font-size: 16px; }
.card .sub { color: var(--text-secondary); font-size: 13px; margin: 0 0 12px; }
.card svg { display: block; }
.card .scroll-x { overflow-x: auto; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 900px) { .grid-2 { grid-template-columns: 1fr; } }

details.table-view { margin-top: 10px; border-top: 1px solid var(--grid); padding-top: 8px; }
details.table-view summary { color: var(--text-muted); font-size: 12px; cursor: pointer; }
details.table-view table { margin-top: 8px; }

table.data {
  border-collapse: collapse; width: 100%; font-size: 13px;
}
table.data th {
  text-align: left; color: var(--text-secondary); font-weight: 500;
  border-bottom: 1px solid var(--axis); padding: 6px 10px 6px 0;
}
table.data th.sort { cursor: pointer; user-select: none; white-space: nowrap; }
table.data th.sort:hover { color: var(--text-primary); }
table.data td { padding: 6px 10px 6px 0; border-bottom: 1px solid var(--grid); vertical-align: top; }
table.data td.num, table.data th.num { text-align: right; font-variant-numeric: tabular-nums; }

/* ---- filter row ---- */
.filter-row {
  display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 16px;
}
.filter-row label { color: var(--text-secondary); font-size: 13px; }
.filter-row select, .filter-row input[type="search"] {
  background: var(--surface-1); color: var(--text-primary);
  border: 1px solid var(--axis); border-radius: 8px; padding: 6px 10px; font: inherit; font-size: 14px;
}
.filter-row input[type="search"] { min-width: 220px; }

/* ---- chips & badges ---- */
.chip {
  display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 12px;
  background: var(--wash); color: var(--text-secondary); margin: 1px 2px 1px 0;
  white-space: nowrap;
}
.chip.ep { cursor: pointer; }
.chip.ep:hover { color: var(--text-primary); }
.badge {
  display: inline-block; font-size: 11px; padding: 1px 7px; border-radius: 6px;
  border: 1px solid var(--axis); color: var(--text-secondary); text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ---- tooltip ---- */
.tooltip {
  position: fixed; z-index: 10; pointer-events: none;
  background: var(--surface-1); color: var(--text-primary);
  border: 1px solid var(--border); border-radius: 10px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
  padding: 9px 12px; font-size: 13px; max-width: 320px;
}
.tooltip .tt-title { font-weight: 600; margin-bottom: 3px; }
.tooltip .tt-row { display: flex; gap: 8px; align-items: baseline; }
.tooltip .tt-key { width: 14px; height: 3px; border-radius: 2px; align-self: center; flex: none; }
.tooltip .tt-val { font-weight: 600; }
.tooltip .tt-label { color: var(--text-secondary); }

/* ---- legend ---- */
.legend { display: flex; gap: 16px; flex-wrap: wrap; font-size: 13px; color: var(--text-secondary); margin: 4px 0 8px; }
.legend .key { display: inline-flex; align-items: center; gap: 6px; }
.legend .swatch { width: 14px; height: 14px; border-radius: 4px; }
.legend .linekey { width: 16px; height: 3px; border-radius: 2px; }

/* ---- episode view ---- */
.ep-nav { display: flex; gap: 10px; align-items: center; margin-bottom: 16px; flex-wrap: wrap; }
.ep-nav select { max-width: 460px; }
.ep-nav button {
  background: var(--surface-1); border: 1px solid var(--axis); color: var(--text-primary);
  border-radius: 8px; padding: 6px 12px; font: inherit; cursor: pointer;
}
.ep-nav button:hover { background: var(--wash); }
.ep-header h2 { margin: 0 0 4px; font-size: 20px; }
.ep-header .meta { color: var(--text-secondary); font-size: 13px; display: flex; gap: 14px; flex-wrap: wrap; }
.ep-links { margin-top: 6px; font-size: 13px; display: flex; gap: 12px; flex-wrap: wrap; }
.tldr {
  margin: 10px 0 2px; max-width: 880px; font-size: 14.5px; color: var(--text-secondary);
  border-left: 3px solid var(--accent); padding-left: 12px;
}

.meter { height: 14px; border-radius: 7px; background: var(--seq-100); overflow: hidden; margin-top: 6px; }
@media (prefers-color-scheme: dark) { .meter { background: var(--seq-600); } }
.meter .fill { height: 100%; background: var(--series-1); border-radius: 7px 0 0 7px; }

.chapter-list { list-style: none; margin: 8px 0 0; padding: 0; font-size: 13.5px; }
.chapter-list li { border-bottom: 1px solid var(--grid); }
.chapter-list .chap-row {
  display: grid; grid-template-columns: 14px 56px 1fr auto; gap: 10px; align-items: baseline;
  padding: 5px 0; cursor: pointer;
}
.chapter-list .chap-row:hover { background: var(--wash); }
.chapter-list .t { color: var(--text-muted); font-variant-numeric: tabular-nums; }
.chapter-list li.hl .chap-row { background: var(--wash); }
.chapter-list .caret { color: var(--text-muted); font-size: 11px; transition: transform 0.12s; }
.chapter-list li.open .caret { transform: rotate(90deg); }

.turns { display: none; padding: 6px 0 14px 24px; border-left: 2px solid var(--grid); margin: 0 0 8px 4px; }
.chapter-list li.open .turns { display: block; }
.turn { margin: 0 0 10px; max-width: 820px; }
.turn .speaker { font-weight: 600; font-size: 12.5px; color: var(--text-secondary); }
.turn .speaker .time { font-weight: 400; color: var(--text-muted); }
.turn p { margin: 1px 0 0; white-space: pre-line; }

.related { background: var(--wash); border-radius: 8px; padding: 8px 12px; margin: 4px 0 12px; font-size: 13px; }
.related .label { color: var(--text-secondary); font-weight: 600; margin-bottom: 2px; }
.related a { display: block; padding: 1px 0; }

.ref-list { columns: 2 340px; column-gap: 32px; margin-top: 4px; }
.ref-list > div { break-inside: avoid; padding: 4px 0; font-size: 13.5px; border-bottom: 1px solid var(--grid); }
.ref-list .small { margin-left: 6px; }

.ref-name { font-weight: 500; }
.small { font-size: 12px; color: var(--text-muted); }