/* The Library's reading surface (docs/specs/LIBRARY.md §2a). The books' emphasis is typography:
   asterisk runs from the importers arrive as <em>/<strong>; grades as weight. Literata is the
   reading serif (SIL Open Font License, self-hosted); DM Mono carries every citation and path. */
@font-face { font-family: 'Literata'; font-weight: 400; font-style: normal; font-display: swap; src: url('/fonts/literata/Literata-regular.woff2') format('woff2'); }
@font-face { font-family: 'Literata'; font-weight: 400; font-style: italic; font-display: swap; src: url('/fonts/literata/Literata-italic.woff2') format('woff2'); }
@font-face { font-family: 'Literata'; font-weight: 500; font-style: normal; font-display: swap; src: url('/fonts/literata/Literata-500.woff2') format('woff2'); }
@font-face { font-family: 'Literata'; font-weight: 600; font-style: normal; font-display: swap; src: url('/fonts/literata/Literata-600.woff2') format('woff2'); }
@font-face { font-family: 'Literata'; font-weight: 600; font-style: italic; font-display: swap; src: url('/fonts/literata/Literata-600italic.woff2') format('woff2'); }
@font-face { font-family: 'Literata'; font-weight: 700; font-style: normal; font-display: swap; src: url('/fonts/literata/Literata-700.woff2') format('woff2'); }
@font-face { font-family: 'DM Mono'; font-weight: 400; font-display: swap; src: url('/app/fonts/dm-mono/DMMono-Regular.woff2') format('woff2'); }
@font-face { font-family: 'DM Mono'; font-weight: 500; font-display: swap; src: url('/app/fonts/dm-mono/DMMono-Medium.woff2') format('woff2'); }
@font-face { font-family: 'Work Sans'; font-weight: 400 600; font-display: swap; src: url('/app/fonts/work-sans/WorkSans-Variable.woff2') format('woff2'); }
@font-face { font-family: 'Instrument Serif'; font-weight: 400; font-display: swap; src: url('/app/fonts/instrument-serif/InstrumentSerif-Regular.woff2') format('woff2'); }

:root {
  --paper: #FBF8F1; --ink: #1B211D; --ink-soft: #3A423D; --rule: rgba(26, 86, 50, 0.16);
  --green: #1A5632; --green-tint: rgba(26, 86, 50, 0.08); --amber: #B8860B;
  --serif: 'Literata', Georgia, 'Times New Roman', serif; --sans: 'Work Sans', system-ui, sans-serif;
  --mono: 'DM Mono', ui-monospace, monospace; --display: 'Instrument Serif', Georgia, serif;
  --measure: 68ch;
}
@media (prefers-color-scheme: dark) {
  :root { --paper: #15191A; --ink: #ECE7DB; --ink-soft: #B9B3A6; --rule: rgba(143, 184, 154, 0.22); --green: #8FB89A; --green-tint: rgba(143, 184, 154, 0.12); }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--serif); font-size: 17px; line-height: 1.55; text-rendering: optimizeLegibility; font-variant-ligatures: common-ligatures; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--green); }
:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; border-radius: 4px; }

.lib-nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 12px 16px; border-bottom: 1px solid var(--rule); font-family: var(--sans); font-size: 15px; }
.lib-nav .wordmark { font-family: var(--display); font-size: 22px; letter-spacing: 0.06em; }
.lib-nav nav { display: flex; gap: 4px; }
.lib-nav nav a { padding: 12px 10px; min-height: 48px; display: inline-flex; align-items: center; font-weight: 600; }
.lib { max-width: 860px; margin: 0 auto; padding: 24px 16px 64px; }
.lib-foot { max-width: 860px; margin: 0 auto; padding: 24px 16px 40px; border-top: 1px solid var(--rule); font-family: var(--sans); font-size: 14px; color: var(--ink-soft); }

.eyebrow { font-family: var(--mono); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--green); margin: 8px 0 6px; }
.eyebrow a { color: var(--green); }
h1 { font-family: var(--display); font-weight: 400; font-size: clamp(30px, 5vw, 42px); line-height: 1.1; margin: 0 0 12px; text-wrap: balance; }
h1 .abbr { font-family: var(--mono); font-size: 0.5em; color: var(--ink-soft); vertical-align: middle; }
h1.rubric-head { font-family: var(--serif); font-weight: 600; font-size: clamp(24px, 4vw, 32px); }
h2 { font-family: var(--sans); font-weight: 600; font-size: 15px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--ink-soft); border-top: 2px solid var(--green); padding-top: 14px; margin: 36px 0 10px; }
h3 { font-family: var(--sans); font-weight: 600; font-size: 14px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--green); margin: 22px 0 6px; }
.lede { color: var(--ink-soft); font-size: 17px; max-width: var(--measure); margin: 0 0 8px; text-wrap: pretty; }
.muted { color: var(--ink-soft); }
.cite, .cite-line, .page, .abbr, .counts, .grade-count, code { font-family: var(--mono); font-size: 13px; color: var(--ink-soft); }
.show-page { margin-top: 20px; font-family: var(--sans); font-size: 15px; }
.show-page a { color: var(--green); text-decoration: underline; text-underline-offset: 3px; }
.cite-this { margin-top: 32px; font-family: var(--sans); font-size: 14px; color: var(--ink-soft); }
.cite-this code { background: var(--green-tint); padding: 4px 8px; border-radius: 6px; display: inline-block; margin-top: 4px; word-break: break-word; }

.books, .remedies, .rubrics, .chapters { list-style: none; margin: 8px 0 0; padding: 0; }
.chapters { counter-reset: ch; }
.books li, .remedies li, .rubrics li, .chapters li { border-bottom: 1px solid var(--rule); }
.books a, .remedies a, .rubrics a, .chapters a { display: grid; grid-template-columns: 1fr auto; gap: 2px 16px; padding: 12px 4px; min-height: 48px; align-items: center; }
.books a { grid-template-columns: 1fr; }
.books .title { font-weight: 600; font-size: 18px; }
.books .meta, .remedies .abbr { font-family: var(--sans); color: var(--ink-soft); font-size: 15px; }
.chapters .chapter { font-weight: 600; }
.rubrics .rubric { font-weight: 500; }
.rubrics .page { grid-column: 1 / -1; margin-top: -4px; }
.letters { display: flex; flex-wrap: wrap; gap: 4px; margin: 16px 0 8px; font-family: var(--mono); }
.letters a { padding: 8px 10px; min-width: 40px; text-align: center; border: 1px solid var(--rule); border-radius: 8px; }
.letter { font-family: var(--serif); text-transform: none; letter-spacing: 0; font-size: 24px; color: var(--ink); border-top-width: 1px; }

.remedy-grades .grade-head { border: 0; padding-top: 4px; margin: 20px 0 4px; }
.remedy-list { font-family: var(--mono); font-size: 15px; line-height: 2; margin: 0; }
.remedy-list a { padding: 4px 6px; border-radius: 6px; display: inline-block; }
.remedy-list a.g3 { font-weight: 500; text-transform: uppercase; color: var(--ink); background: var(--green-tint); }
.remedy-list a.g2 { font-style: italic; color: var(--ink); }
.remedy-list a.g1 { color: var(--ink-soft); }

.book-toc { display: flex; flex-wrap: wrap; gap: 6px; margin: 12px 0 8px; font-family: var(--sans); font-size: 14px; }
.book-toc a { padding: 8px 12px; border: 1px solid var(--rule); border-radius: 999px; }
.book-section { max-width: var(--measure); }
.book-text { margin: 0 0 14px; text-wrap: pretty; hyphens: auto; }
.book-text em { font-style: italic; }
.book-text strong { font-weight: 600; letter-spacing: 0.01em; }
.sentence:target, .book-text:target { background: var(--green-tint); border-radius: 4px; }
.fulltext { font-family: var(--serif); color: var(--ink); }
@media (max-width: 480px) { body { font-size: 17px; } .lib { padding: 16px 16px 48px; } .lib-nav nav a { padding: 12px 8px; } }
@media print { .lib-nav, .lib-foot, .book-toc, .letters { display: none; } body { background: #fff; color: #000; } .book-text { break-inside: avoid; } }