/* setviews: a narrative of set-membership drawings driven by one YAML file.
   Tokens first; everything else derives from them. Colour-blind-checked 8-slot categorical palette. */
:root {
  --bg: #f7f6f2; --surface: #fffefb; --fg: #1d1c1a; --fg2: #5a5853; --line: #d9d6cc; --line2: #ebe9e1;
  --accent: #184f95;
  --s1:#2a78d6; --s2:#eb6834; --s3:#1baf7a; --s4:#eda100; --s5:#e87ba4; --s6:#008300; --s7:#6250d6; --s8:#e34948;
  --display: "Libre Baskerville", Baskerville, "Times New Roman", serif;
  --body: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
}
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) {
  --bg:#1a1a19; --surface:#222220; --fg:#efede6; --fg2:#b9b6ab; --line:#44423c; --line2:#33322e; --accent:#86b6ef;
  --s1:#3987e5; --s2:#d95926; --s3:#199e70; --s4:#c98500; --s5:#d55181; --s6:#008300; --s7:#9085e9; --s8:#e66767;
  color-scheme: dark; } }
:root[data-theme="dark"] {
  --bg:#1a1a19; --surface:#222220; --fg:#efede6; --fg2:#b9b6ab; --line:#44423c; --line2:#33322e; --accent:#86b6ef;
  --s1:#3987e5; --s2:#d95926; --s3:#199e70; --s4:#c98500; --s5:#d55181; --s6:#008300; --s7:#9085e9; --s8:#e66767;
  color-scheme: dark; }

html, body { margin: 0; }
.sitenav { font-size: .78rem; letter-spacing: .06em; text-transform: uppercase; color: var(--fg2); max-width: 1240px; margin: -8px auto 18px; }
.sitenav a { color: var(--fg2); text-decoration: none; }
.sitenav a:hover { color: var(--accent); text-decoration: underline; }
.sitenav [aria-current] { color: var(--fg); }
body { background: var(--bg); color: var(--fg); font-family: var(--body); font-size: 15px; line-height: 1.5;
  padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); padding-block: 24px 64px; }
/* page grid: header spans both columns; drawings on the left, the case selector sticky on the right */
main { max-width: 1240px; margin: 0 auto; display: grid; grid-template-columns: minmax(0, 1fr); gap: 0 36px; }
.head { grid-column: 1 / -1; }
.content { grid-column: 1; min-width: 0; }
@media (min-width: 960px) {
  main { grid-template-columns: minmax(0, 1fr) 250px; }
  main > .strip { grid-column: 2; grid-row: 2; align-self: start; position: sticky; top: 16px; max-height: calc(100vh - 32px); overflow-y: auto;
    border: 1px solid var(--line); border-radius: 4px; padding: 12px 14px; margin: 48px 0 0; background: var(--surface); }
  .strip .chips { flex-direction: column; align-items: flex-start; gap: 4px; }
  .strip .card { grid-template-columns: 1fr; margin: 0 0 12px; }
  .strip .card:empty { display: none; }
}
h1 { font-family: var(--display); font-weight: 400; font-size: 2rem; line-height: 1.15; margin: 0 0 6px; text-wrap: balance; }
h2 { font-family: var(--display); font-weight: 400; font-size: 1.35rem; margin: 48px 0 6px; text-wrap: balance; }
h3 { font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; color: var(--fg2); margin: 20px 0 8px; font-weight: 600; }
p { max-width: 68ch; margin: 0 0 12px; }
p.lede { color: var(--fg2); font-size: 1.02rem; }
a { color: var(--accent); }
.eyebrow { font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; color: var(--fg2); }
figure { margin: 16px 0 8px; }
figcaption { color: var(--fg2); font-size: .9rem; max-width: 70ch; margin-top: 8px; }
.scroller { overflow-x: auto; border: 1px solid var(--line2); background: var(--surface); border-radius: 4px; }
svg { display: block; max-width: 100%; height: auto; font-family: var(--body); }
svg text { fill: var(--fg); }
svg text.muted { fill: var(--fg2); }
.dim { opacity: .14; transition: opacity .15s; }
.hit { cursor: pointer; }

/* case selector; narrow-screen form is a sticky strip above the drawings */
.strip { position: sticky; top: 0; z-index: 5; background: var(--bg); border-bottom: 1px solid var(--line); padding: 10px 0; margin: 18px 0 8px; grid-column: 1; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { font: 500 .8rem var(--body); border: 1px solid var(--line); background: var(--surface); color: var(--fg); border-radius: 999px; padding: 3px 10px; cursor: pointer; }
.chip:hover { border-color: var(--fg2); }
.chip[aria-pressed="true"] { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.chip:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.chip.small { font-size: .72rem; padding: 2px 8px; font-weight: 400; }
.dsgroup { flex-basis: 100%; margin-top: 6px; }
.dsgroup summary { cursor: pointer; font: 600 .78rem var(--body); letter-spacing: .04em; color: var(--fg2); margin-bottom: 4px; }
.dsgroup .chips { margin-left: 2px; }
.card .quote { font-style: italic; }
.card details.related summary { cursor: pointer; color: var(--fg); font-weight: 600; }
.card .relds { margin: 2px 0 0 8px; }
.card .relds a { margin-right: 4px; }
.card { display: grid; grid-template-columns: 1fr; gap: 4px 18px; font-size: .9rem; margin-top: 8px; color: var(--fg2); min-height: 1.4em; }
.card b { color: var(--fg); font-weight: 600; }
.sw { display: inline-block; width: 10px; height: 10px; border-radius: 2px; vertical-align: -1px; margin-right: 4px; }
@media (min-width: 720px) { .card { grid-template-columns: auto auto auto; } }

/* taxonomy tabs above the category list */
.tabs { display: flex; flex-wrap: wrap; gap: 4px 18px; margin: 22px 0 0; border-bottom: 1px solid var(--line); }
.tab { font: 600 .8rem var(--body); letter-spacing: .06em; text-transform: uppercase; color: var(--fg2); background: none; border: 0; border-bottom: 2px solid transparent; padding: 6px 0 8px; margin-bottom: -1px; cursor: pointer; }
.tab:hover { color: var(--fg); }
.tab[aria-selected="true"] { color: var(--fg); border-bottom-color: var(--fg); }
.tab:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
#catlist h3 { margin-top: 14px; }

/* category list */
.cats { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px 22px; margin: 10px 0 0; padding: 0; list-style: none; }
.cats li { border-top: 3px solid; padding-top: 6px; font-size: .9rem; min-width: 0; }
.cats li b { display: block; font-size: .98rem; margin-bottom: 2px; }
.cats li span { color: var(--fg2); }
.notes { max-width: 68ch; padding-left: 1.2em; margin: 0 0 12px; }
.notes li { margin-bottom: 6px; }

/* footnotes */
sup.fn { font-size: .7em; line-height: 0; vertical-align: super; margin-left: 1px; }
sup.fn a { text-decoration: none; color: var(--accent); }
sup.fn a:hover { text-decoration: underline; }
ol.footnotes { max-width: 72ch; font-size: .85rem; color: var(--fg2); padding-left: 1.6em; margin: 0 0 12px; }
ol.footnotes li { margin-bottom: 6px; padding-left: 4px; scroll-margin-top: 24px; }
ol.footnotes li:target { background: var(--line2); border-radius: 3px; }
ol.footnotes .pg { font-style: italic; }
ol.footnotes q { quotes: "“" "”"; }
.cats li em { display: block; color: var(--fg2); font-size: .85rem; margin-bottom: 4px; }

/* attribution footer */
footer.attrib { border-top: 1px solid var(--line); margin-top: 48px; padding-top: 14px; font-size: .85rem; color: var(--fg2); max-width: 68ch; }
footer.attrib ul { padding-left: 1.2em; margin: 4px 0 0; }
.error { border: 1px solid var(--s8); padding: 10px 12px; border-radius: 4px; max-width: 68ch; }
@media (prefers-reduced-motion: reduce) { .dim { transition: none; } }