/* The library: index and article layout. Built on the site design system
   (assets/site.css) so a library page looks like the rest of the site. */

body { background: #FEFCFB; }
.nav-inner { background: #fff; }

.lib-wrap { width: 100%; max-width: 780px; margin: 0 auto; padding: 0 28px; }

/* ------------------------------------------------------------- breadcrumbs */
.lib-crumbs {
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--ink-4); margin-bottom: 22px;
}
.lib-crumbs a { color: var(--ink-3); text-decoration: none; }
.lib-crumbs a:hover { color: var(--brick); }
.lib-crumbs span[aria-hidden] { margin: 0 6px; color: var(--ink-4); opacity: 0.6; }

/* ------------------------------------------------------------------ header */
.lib-post { padding: 138px 0 96px; }
.lib-head { margin-bottom: 34px; }
.lib-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 10.5px; font-weight: 500;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--brick);
  margin-bottom: 18px;
}
.lib-eyebrow::before { content: ''; width: 6px; height: 6px; background: var(--brick); }
.lib-title {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(29px, 3.4vw, 43px); line-height: 1.12; letter-spacing: -0.02em;
  color: var(--ink); margin: 0 0 16px;
}
.lib-standfirst {
  font-size: 17px; line-height: 1.6; color: var(--ink-3); margin: 0 0 20px; max-width: 60ch;
}
.lib-meta {
  display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center;
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.05em;
  text-transform: uppercase; color: var(--ink-4);
  padding-top: 16px; border-top: 1px solid var(--bg-3);
}
.lib-md { color: var(--brick); text-decoration: none; }
.lib-md:hover { text-decoration: underline; }

/* ------------------------------------------------------------------- table of contents */
.lib-toc {
  border: 1px solid var(--bg-3); background: #fff; box-shadow: 4px 4px 0 var(--bg-2);
  padding: 18px 22px 20px; margin: 0 0 40px;
}
.lib-toc-t {
  margin: 0 0 10px; font-family: var(--font-mono); font-size: 9.5px; font-weight: 500;
  letter-spacing: 0.09em; text-transform: uppercase; color: var(--ink-4);
}
.lib-toc ol { margin: 0; padding-left: 18px; }
.lib-toc li { margin-bottom: 5px; font-size: 13.5px; line-height: 1.5; }
.lib-toc a { color: var(--ink-2); text-decoration: none; }
.lib-toc a:hover { color: var(--brick); }

/* -------------------------------------------------------------------- body */
.lib-body { font-size: 16px; line-height: 1.75; color: var(--ink-2); }
.lib-body p { margin: 0 0 20px; }
.lib-body h2 {
  font-family: var(--font-display); font-size: 25px; font-weight: 500;
  letter-spacing: -0.01em; color: var(--ink); margin: 46px 0 16px; scroll-margin-top: 90px;
}
.lib-body h2::before {
  content: ''; display: inline-block; width: 10px; height: 10px;
  background: var(--brick); margin-right: 12px;
}
.lib-body h3 {
  font-family: var(--font-display); font-size: 19px; font-weight: 500;
  color: var(--ink); margin: 34px 0 12px; scroll-margin-top: 90px;
}
.lib-body h4 {
  font-family: var(--font-sans); font-size: 15px; font-weight: 600;
  color: var(--ink); margin: 26px 0 10px;
}
.lib-body a { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--brick); }
.lib-body a:hover { color: var(--brick); }
.lib-body strong { font-weight: 600; color: var(--ink); }
.lib-body ul, .lib-body ol { margin: 0 0 20px; padding-left: 22px; }
.lib-body li { margin-bottom: 8px; }
.lib-body hr { border: 0; border-top: 1px solid var(--bg-3); margin: 40px 0; }
.lib-body code {
  font-family: var(--font-mono); font-size: 0.86em;
  background: var(--bg-2); padding: 2px 5px; word-break: break-word;
}
.lib-body pre.code-panel {
  background: #1C1917; color: #EDE4DA; padding: 18px 20px; overflow-x: auto;
  margin: 24px 0; border: 1px solid var(--ink); box-shadow: 5px 5px 0 var(--bg-2);
}
.lib-body pre.code-panel code { background: none; padding: 0; font-size: 12.8px; line-height: 1.65; color: inherit; }
.lib-body blockquote {
  margin: 28px 0; padding: 6px 0 6px 20px; border-left: 3px solid var(--brick);
  color: var(--ink-3); font-style: italic;
}
.lib-body blockquote p:last-child { margin-bottom: 0; }

/* tables: the shape models extract best, so they get real styling */
.tbl-wrap { overflow-x: auto; margin: 26px 0; border: 1px solid var(--bg-3); box-shadow: 5px 5px 0 var(--bg-2); background: #fff; }
.lib-body table { border-collapse: collapse; width: 100%; font-size: 13.5px; }
.lib-body th, .lib-body td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--bg-3); vertical-align: top; }
.lib-body th {
  font-family: var(--font-mono); font-size: 10px; font-weight: 500;
  letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-3);
  background: var(--bg); white-space: nowrap;
}
.lib-body tbody tr:last-child td { border-bottom: 0; }
.lib-body td code { font-size: 0.9em; }

/* a short answer directly under a question heading */
.lib-body .answer {
  background: var(--bg); border-left: 3px solid var(--brick);
  padding: 14px 18px; margin: 0 0 22px; font-size: 15px; line-height: 1.65;
}
.lib-body .answer p:last-child { margin-bottom: 0; }
.lib-body .keyfacts { margin: 0 0 30px; }

/* --------------------------------------------------------------------- faq */
.lib-faq { margin: 52px 0 0; padding-top: 8px; }
.lib-faq h2 {
  font-family: var(--font-display); font-size: 25px; font-weight: 500;
  letter-spacing: -0.01em; color: var(--ink); margin: 0 0 18px;
}
.lib-faq h2::before {
  content: ''; display: inline-block; width: 10px; height: 10px;
  background: var(--brick); margin-right: 12px;
}
.lib-q { border-bottom: 1px solid var(--bg-3); }
.lib-q summary {
  cursor: pointer; padding: 15px 28px 15px 0; position: relative;
  font-size: 15.5px; font-weight: 600; color: var(--ink); list-style: none;
}
.lib-q summary::-webkit-details-marker { display: none; }
.lib-q summary::after {
  content: '+'; position: absolute; right: 4px; top: 50%; transform: translateY(-50%);
  font-family: var(--font-mono); font-size: 17px; color: var(--brick);
}
.lib-q[open] summary::after { content: '\2212'; }
.lib-q summary:hover { color: var(--brick); }
.lib-a { padding: 0 0 18px; font-size: 15px; line-height: 1.7; color: var(--ink-2); }
.lib-a p { margin: 0 0 14px; }
.lib-a p:last-child { margin-bottom: 0; }
.lib-a a { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--brick); }

/* --------------------------------------------------------------------- cta */
.lib-cta {
  margin: 56px 0 0; padding: 26px 28px; background: #fff;
  border: 1px solid var(--ink); box-shadow: 6px 6px 0 var(--ink);
}
.lib-cta h2 {
  margin: 0 0 10px; font-family: var(--font-display); font-weight: 500;
  font-size: 20px; letter-spacing: -0.01em;
}
.lib-cta p { margin: 0 0 18px; font-size: 14px; line-height: 1.65; color: var(--ink-3); }
.lib-cta-row { display: flex; flex-wrap: wrap; gap: 10px; }
.lib-cta-row a.btn { text-decoration: none; color: var(--ink); }
.lib-cta-row a.btn:hover { color: var(--bg); }
.lib-cta-row a.btn-primary { color: var(--bg); }

/* --------------------------------------------------------------- read next */
.lib-next { margin: 52px 0 0; }
.lib-next h2 {
  font-family: var(--font-display); font-size: 21px; font-weight: 500;
  letter-spacing: -0.01em; color: var(--ink); margin: 0 0 16px;
}
.lib-next-list, .lib-index { list-style: none; margin: 0; padding: 0; }
.lib-next-list li, .lib-index li { border-top: 1px solid var(--bg-3); }
.lib-next-list li:last-child, .lib-index li:last-child { border-bottom: 1px solid var(--bg-3); }
.lib-next-list a, .lib-index a {
  display: block; padding: 15px 2px; text-decoration: none; color: var(--ink);
  transition: padding-left 120ms ease;
}
.lib-next-list a:hover, .lib-index a:hover { padding-left: 8px; }
.lib-next-list b, .lib-index b { display: block; font-size: 15.5px; font-weight: 600; margin-bottom: 3px; }
.lib-next-list a:hover b, .lib-index a:hover b { color: var(--brick); }
.lib-next-list span, .lib-index span { display: block; font-size: 13px; line-height: 1.55; color: var(--ink-3); }

.lib-back { margin: 48px 0 0; }
.lib-back a {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--ink-3); text-decoration: none;
}
.lib-back a:hover { color: var(--brick); }

/* ------------------------------------------------------------------- index */
.lib-hero { padding: 150px 0 46px; border-bottom: 1px solid var(--bg-3); }
.lib-hero h1 {
  margin: 0 0 14px; font-family: var(--font-display); font-weight: 500;
  font-size: clamp(32px, 4vw, 46px); letter-spacing: -0.02em; line-height: 1.1;
}
.lib-hero p { margin: 0 0 12px; font-size: 16px; line-height: 1.65; color: var(--ink-3); max-width: 62ch; }
.lib-hero-note { font-size: 13.5px !important; color: var(--ink-4) !important; }
.lib-hero-note code { font-family: var(--font-mono); font-size: 0.9em; background: var(--bg-2); padding: 2px 5px; }

.lib-sec { padding: 46px 0 10px; }
.lib-sec + .lib-sec { border-top: 1px solid var(--bg-3); }
.lib-sec-end { padding-bottom: 72px; }
.lib-sec-t {
  margin: 0 0 6px; font-family: var(--font-display); font-weight: 500;
  font-size: 22px; letter-spacing: -0.01em;
}
.lib-sec-t em {
  font-style: normal; font-family: var(--font-mono); font-size: 10.5px; font-weight: 400;
  letter-spacing: 0.07em; text-transform: uppercase; color: var(--ink-4);
  display: block; margin-bottom: 8px;
}
.lib-sec-d { margin: 0 0 20px; font-size: 14px; line-height: 1.6; color: var(--ink-3); max-width: 60ch; }
.lib-sec .lib-cta-row { margin-top: 20px; }

@media (max-width: 900px) {
  .lib-post { padding: 118px 0 68px; }
  .lib-hero { padding: 126px 0 38px; }
  .lib-body { font-size: 15.5px; }
}

/* the product pages fold away on the index: there are over a hundred, and
   printed in full they buried the pages a reader is actually looking for */
.lib-more { margin: 22px 0 0; border-top: 1px solid var(--bg-3); padding-top: 16px; }
.lib-more summary {
  cursor: pointer; list-style: none; font-family: var(--font-mono);
  font-size: 11px; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--ink-3); padding: 4px 0 4px 18px; position: relative;
}
.lib-more summary::-webkit-details-marker { display: none; }
.lib-more summary::before {
  content: '+'; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  font-size: 14px; color: var(--brick);
}
.lib-more[open] summary::before { content: '\2212'; }
.lib-more summary:hover { color: var(--brick); }
.lib-more-d { margin: 12px 0 6px; font-size: 13px; line-height: 1.6; color: var(--ink-4); max-width: 58ch; }
.lib-index-tight li a { padding: 9px 2px; }
.lib-index-tight li a b { margin-bottom: 0; }