/* Qualuation: an editorial, typographic site. Spectral for reading, Inter for numbers and UI. */
@font-face { font-family: "Spectral"; font-style: normal; font-weight: 400; font-display: swap;
  src: url("/fonts/spectral-latin-400-normal.woff2") format("woff2"); }
@font-face { font-family: "Spectral"; font-style: italic; font-weight: 400; font-display: swap;
  src: url("/fonts/spectral-latin-400-italic.woff2") format("woff2"); }
@font-face { font-family: "Spectral"; font-style: normal; font-weight: 600; font-display: swap;
  src: url("/fonts/spectral-latin-600-normal.woff2") format("woff2"); }
@font-face { font-family: "Inter"; font-style: normal; font-weight: 100 900; font-display: swap;
  src: url("/fonts/inter-latin-wght-normal.woff2") format("woff2"); }

:root {
  color-scheme: light;
  --paper: #fbfaf7;
  --surface: #ffffff;
  --ink: #1a1a18;
  --ink-2: #4a4945;
  --ink-3: #6b6a65;
  --rule: #e4e2dc;
  --accent: #143d59;
  --accent-soft: #e3ebf1;
  --amber: #f4b31a;
  --amber-ink: #8a5f00;
  --serif: "Spectral", Georgia, "Times New Roman", serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --read: 680px;
  --wide: 1040px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink);
  font: 400 1.125rem/1.65 var(--serif); }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 8px; background: var(--surface); padding: 6px 10px; z-index: 2; }

/* Layout */
.wrap { max-width: var(--wide); margin: 0 auto; padding: 0 16px; }
.read { max-width: var(--read); }
main { padding: 8px 0 64px; }

/* Header */
.site-head { border-bottom: 1px solid var(--rule); background: var(--paper); }
.site-head .wrap { display: flex; align-items: center; gap: 24px; min-height: 64px;
  flex-wrap: wrap; padding-top: 10px; padding-bottom: 10px; }
.brand { font: 650 1.25rem/1 var(--sans); letter-spacing: -0.01em; color: var(--accent);
  text-decoration: none; }
.site-head nav { display: flex; gap: 18px; flex-wrap: wrap; font: 500 0.9375rem/1 var(--sans); }
.site-head nav a { color: var(--ink-2); text-decoration: none; padding: 6px 0; }
.site-head nav a:hover, .site-head nav a[aria-current] { color: var(--accent); }
.site-head .sub { margin-left: auto; }

/* Type */
h1, h2, h3 { font-family: var(--sans); color: var(--ink); letter-spacing: -0.015em; }
h1 { font-size: clamp(1.9rem, 1.3rem + 2.6vw, 2.75rem); line-height: 1.12; font-weight: 650;
  margin: 40px 0 12px; }
h2 { font-size: 1.375rem; line-height: 1.25; font-weight: 620; margin: 48px 0 12px; }
h3 { font-size: 1.0625rem; line-height: 1.3; font-weight: 620; margin: 28px 0 8px; }
p { margin: 0 0 16px; }
.kicker { font: 600 0.8125rem/1.2 var(--sans); letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--ink-3); margin: 40px 0 0; }
.lede { font-size: 1.3125rem; line-height: 1.5; color: var(--ink); }
.meta { font: 400 0.9375rem/1.5 var(--sans); color: var(--ink-3); }
.small { font: 400 0.875rem/1.55 var(--sans); color: var(--ink-3); }
.num { font-family: var(--sans); font-variant-numeric: tabular-nums; }

/* Buttons and the search box */
.button { display: inline-block; font: 600 1rem/1 var(--sans); padding: 13px 18px;
  border-radius: 6px; text-decoration: none; border: 1px solid var(--accent); }
.button.primary { background: var(--accent); color: #fff; }
.button.secondary { background: transparent; color: var(--accent); }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 20px 0; }
.search { display: flex; gap: 8px; max-width: 520px; margin: 24px 0 8px; }
.search input { flex: 1; min-width: 0; font: 400 1.0625rem/1 var(--sans); padding: 12px 14px;
  border: 1px solid #b9b7b0; border-radius: 6px; background: var(--surface); color: var(--ink); }
.search button { font: 600 1rem/1 var(--sans); padding: 0 18px; border-radius: 6px;
  border: 1px solid var(--accent); background: var(--accent); color: #fff; cursor: pointer; }

/* Home */
.hero { padding: 32px 0 8px; }
.hero h1 { font-size: clamp(2.4rem, 1.4rem + 4.4vw, 4rem); line-height: 1.04; margin-top: 32px;
  max-width: 12ch; }
.hero.serif h1 { font-family: var(--serif); font-weight: 600; letter-spacing: -0.01em; }
.post-list { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--rule); }
.post-list li { padding: 18px 0; border-bottom: 1px solid var(--rule); }
.post-list a.title { font: 620 1.1875rem/1.3 var(--sans); color: var(--ink); text-decoration: none; }
.post-list a.title:hover { color: var(--accent); }
.post-list p { margin: 6px 0 0; color: var(--ink-2); }
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.steps li { padding-left: 34px; position: relative; }
.steps li::before { counter-increment: step; content: counter(step); position: absolute; left: 0;
  top: 2px; width: 22px; height: 22px; border-radius: 50%; background: var(--accent-soft);
  color: var(--accent); font: 650 0.8125rem/22px var(--sans); text-align: center; }
.steps { counter-reset: step; }

/* Company page */
.answer { font-size: 1.3125rem; line-height: 1.5; margin: 8px 0 24px; }
.answer strong { font-family: var(--sans); font-variant-numeric: tabular-nums; font-weight: 650; }
.trio { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--rule);
  border: 1px solid var(--rule); border-radius: 8px; overflow: hidden; margin: 24px 0 12px; }
/* One row grid for all three cards (subgrid): the numbers line up however a label wraps. */
.trio > div { background: var(--surface); padding: 16px 18px 18px; display: grid;
  grid-row: span 3; grid-template-rows: subgrid; row-gap: 0; }
.trio .label { font: 500 0.875rem/1.35 var(--sans); color: var(--ink-2); margin: 0 0 8px;
  align-self: end; }
.trio .value { font: 650 2rem/1 var(--sans); font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em; margin: 0 0 8px; }
.trio .src { font: 400 0.8125rem/1.45 var(--sans); color: var(--ink-3); margin: 0;
  align-self: start; }
.trio .implied { box-shadow: inset 0 4px 0 var(--amber); }
.comparison { font-style: italic; color: var(--ink-2); }
/* The two views (scan v2): tabs once the script runs; without it, both show under their headings. */
.tabs { display: flex; gap: 4px; margin: 28px 0 0; border-bottom: 1px solid var(--rule); }
.tabs[hidden] { display: none; }
/* With script, the head marks the view to show before the first paint (no layout shift). */
html[data-view] .tabs[hidden] { display: flex; }
html[data-view="margin"] #view-growth, html[data-view="growth"] #view-margin { display: none; }
.tabs [role="tab"] { font: 600 1rem/1 var(--sans); color: var(--ink-2); background: none;
  border: 0; border-bottom: 3px solid transparent; padding: 12px 18px 11px; margin-bottom: -1px;
  cursor: pointer; min-height: 44px; }
.tabs [role="tab"]:hover { color: var(--ink); }
.tabs [role="tab"][aria-selected="true"] { color: var(--accent); border-bottom-color: var(--accent); }
.view { margin: 0 0 8px; }
.view-title { margin: 28px 0 4px; font: 650 1.25rem/1.3 var(--sans); }
.lede { color: var(--ink-2); font-size: 1rem; margin: 0 0 16px; }
.note { border-left: 3px solid var(--rule); padding: 4px 0 4px 18px; color: var(--ink-2); }
figure { margin: 28px 0; }
figcaption { font: 400 0.875rem/1.5 var(--sans); color: var(--ink-3); margin-top: 8px; }
.chart { width: 100%; height: auto; display: block; overflow: visible; }
.chart.narrow { display: none; }
.chart .axis { font: 400 12px var(--sans); fill: var(--ink-3); }
.chart .axis.faint { font-style: italic; }
.chart .label { font: 400 12.5px var(--sans); }
.chart .pt:hover circle:last-of-type { stroke-width: 3; }
details { margin: 8px 0 0; font-family: var(--sans); font-size: 0.9375rem; }
summary { cursor: pointer; color: var(--accent); }
dl.assume { margin: 0; border-top: 1px solid var(--rule); }
dl.assume > div { display: grid; grid-template-columns: 220px 1fr; gap: 4px 24px;
  padding: 14px 0; border-bottom: 1px solid var(--rule); }
dl.assume dt { font: 600 0.9375rem/1.45 var(--sans); }
dl.assume dd { margin: 0; }
dl.assume .v { font: 650 1.0625rem/1.4 var(--sans); font-variant-numeric: tabular-nums; }
dl.assume .why { display: block; color: var(--ink-2); font-size: 1rem; }
dl.assume .src { display: block; font: 400 0.8125rem/1.5 var(--sans); color: var(--ink-3);
  margin-top: 2px; }
ul.caveats { padding-left: 1.2em; }
ul.caveats li { margin-bottom: 8px; }
.frame { border-left: 3px solid var(--accent); padding: 4px 0 4px 18px; margin: 32px 0; }
.frame p:last-child { margin-bottom: 0; }
.ask { background: var(--accent-soft); border-radius: 8px; padding: 20px 22px; margin: 32px 0; }
.ask p { margin: 0 0 12px; }
table.data { border-collapse: collapse; font: 400 0.9375rem/1.4 var(--sans);
  font-variant-numeric: tabular-nums; margin: 8px 0; min-width: 280px; }
table.data th, table.data td { text-align: right; padding: 6px 12px; border-bottom: 1px solid var(--rule); }
table.data th:first-child, table.data td:first-child { text-align: left; padding-left: 0; }
table.data th { font-weight: 600; color: var(--ink-2); }
.sources { font: 400 0.875rem/1.6 var(--sans); color: var(--ink-2); }
.sources ul { padding-left: 1.2em; }

/* Footer */
.site-foot { border-top: 1px solid var(--rule); padding: 28px 0 40px;
  font: 400 0.875rem/1.6 var(--sans); color: var(--ink-3); }
.site-foot p { margin: 0 0 8px; max-width: 760px; }
.site-foot a { color: var(--ink-2); }

@media (max-width: 640px) {
  body { font-size: 1.0625rem; }
  .trio { grid-template-columns: 1fr; }
  .chart.wide { display: none; }
  .chart.narrow { display: block; }
  .trio .value { font-size: 1.75rem; }
  dl.assume > div { grid-template-columns: 1fr; }
  .site-head .sub { margin-left: 0; }
  .hero h1 { max-width: none; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }

/* Library index */
.library { list-style: none; padding: 0; margin: 8px 0 0; display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); column-gap: 40px;
  font-family: var(--sans); }
.library li { padding: 9px 0; border-bottom: 1px solid var(--rule);
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 2px 10px; }
.library li[hidden] { display: none; }
.library a { display: contents; color: var(--ink); text-decoration: none; }
.library a:hover .name { color: var(--accent); text-decoration: underline; }
.library .name { font-weight: 560; font-size: 1rem; }
.library .tk { font: 600 0.75rem/1 var(--sans); letter-spacing: 0.04em; color: var(--accent);
  background: var(--accent-soft); border-radius: 4px; padding: 3px 5px; }
.library .ind { flex-basis: 100%; font-size: 0.8125rem; color: var(--ink-3); }
.library.plain .name { font-weight: 450; color: var(--ink-2); }
.library.plain .tk { color: var(--ink-3); background: #efeee9; }
.uncovered h3 { font: 500 1rem/1.45 var(--serif); color: var(--ink-2); letter-spacing: 0;
  margin: 28px 0 4px; max-width: var(--read); }
.uncovered[hidden] { display: none; }
.crumb { color: var(--ink-3); text-decoration: none; }
.crumb:hover { color: var(--accent); }

/* Post summaries */
.table-wrap { overflow-x: auto; margin: 8px 0; }
table.stories { width: 100%; }
table.stories th, table.stories td { white-space: normal; vertical-align: top; }
table.stories thead th { font-size: 0.8125rem; line-height: 1.3; }
table.stories tbody th { text-align: left; font-weight: 600; color: var(--ink); min-width: 9em; }

/* The session player */
.player { margin: 32px 0 8px; max-width: 980px; }
.window { border: 1px solid var(--rule); border-radius: 10px; background: var(--surface);
  overflow: hidden; box-shadow: 0 1px 2px rgba(0,0,0,0.04), 0 8px 24px rgba(20,61,89,0.06); }
.window-bar { display: flex; align-items: center; gap: 6px; padding: 10px 14px;
  border-bottom: 1px solid var(--rule); background: #f6f5f1; }
.window-bar .dot { width: 9px; height: 9px; border-radius: 50%; background: #d9d7d0; }
.window-title { margin-left: 10px; font: 600 0.8125rem/1 var(--sans); color: var(--ink-2); }
.panes { display: grid; grid-template-columns: 1fr 300px; height: 420px; }
.chat { padding: 18px 20px; overflow-y: auto; font-family: var(--sans); }
.sources { border-left: 1px solid var(--rule); background: #fbfaf7; padding: 14px 16px;
  overflow-y: auto; }
.pane-title { font: 600 0.75rem/1 var(--sans); letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--ink-3); margin: 2px 0 12px; }
#sources { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.card { font: 400 0.8125rem/1.4 var(--sans); color: var(--ink); background: var(--surface);
  border: 1px solid var(--rule); border-radius: 6px; padding: 8px 10px 8px 30px; position: relative;
  opacity: 0; transform: translateX(14px); transition: opacity .35s ease, transform .35s ease; }
.card::before { content: "\2713"; position: absolute; left: 10px; top: 8px; color: var(--accent);
  font-weight: 700; }
.card.in { opacity: 1; transform: none; }
.card.fresh { border-color: var(--amber); box-shadow: 0 0 0 2px rgba(244,179,26,0.25); }
.msg { margin: 0 0 14px; max-width: 88%; }
.msg .who { display: block; font: 600 0.75rem/1 var(--sans); color: var(--ink-3); margin-bottom: 5px; }
.msg .text { margin: 0; font: 400 0.9375rem/1.5 var(--sans); background: #f3f2ee;
  border-radius: 10px; padding: 9px 12px; }
.msg.person { margin-left: auto; text-align: right; }
.msg.person .text { background: var(--accent); color: #fff; text-align: left; }
.msg.reviewer .text { background: #fff7e0; border: 1px solid #f1dfa6; }
.msg.engine .text { background: var(--accent-soft); border: 1px solid #c9d7e2;
  font-variant-numeric: tabular-nums; }
.msg.engine .who::before { content: "\2211  "; color: var(--accent); }
.typing { color: var(--ink-3); letter-spacing: 2px; animation: pulse 1s infinite; }
@keyframes pulse { 50% { opacity: .3; } }
.player .caption { font: 600 1.125rem/1.4 var(--sans); color: var(--ink); min-height: 1.6em;
  margin: 14px 0 6px; }
.caption-inline { font: 600 0.9375rem/1.4 var(--sans); color: var(--accent); margin: 18px 0 8px; }
.controls { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.controls .button { padding: 8px 12px; font-size: 0.875rem; }
.steps-row { list-style: none; display: flex; flex-wrap: wrap; gap: 4px; padding: 0; margin: 0 0 0 8px; }
.step { font: 500 0.8125rem/1 var(--sans); background: none; border: 1px solid var(--rule);
  border-radius: 999px; padding: 6px 10px; color: var(--ink-2); cursor: pointer; }
.step[aria-current="step"] { background: var(--accent); border-color: var(--accent); color: #fff; }
.player.static .panes { height: auto; }
.player.static .chat { overflow: visible; }
.static-frames { padding-left: 1.2em; }
@media (max-width: 720px) {
  .panes { grid-template-columns: 1fr; grid-template-rows: auto 1fr; height: 520px; }
  .sources { order: -1; border-left: 0; border-bottom: 1px solid var(--rule); padding: 10px 12px;
    max-height: 120px; }
  #sources { display: flex; flex-wrap: wrap; gap: 6px; }
  .card { padding: 4px 8px 4px 24px; font-size: 0.75rem; }
  .card::before { left: 8px; top: 4px; }
  .msg { max-width: 100%; }
  .steps-row { margin: 4px 0 0; }
}