/* ============================================================
   The Member Library — grandvision.co/family-office/library/
   One stylesheet for every library page, public and gated:
   indexes, letters (Member Insights), bound volumes (White
   Papers), field notes (AI Field Notes), and public teasers.
   Aesthetic: private correspondence archive, not a blog —
   cream paper, navy ink, gold rules. No cards-and-widgets.
   ============================================================ */

:root {
  --lib-paper: #f9f6ef;            /* warm stationery ground */
  --lib-paper-deep: #f1ecdf;
  --lib-ink: #1a2744;              /* navy text on paper */
  --lib-ink-soft: #47536e;
  --lib-ink-faint: #7a8296;
  --lib-gold: #c9a84c;             /* decorative gold (rules, glyphs) */
  --lib-gold-rule: rgba(201, 168, 76, 0.45); /* hairline gold (glyph rings) */
  --lib-gold-ink: #8a6d2f;         /* readable gold for small text on paper */
  --lib-navy-panel: #1a2744;       /* lock panels, specimen blocks */
  --lib-serif: 'Cormorant Garamond', Georgia, serif;
  --lib-text: 'Newsreader', Georgia, serif;
  --lib-sans: 'DM Sans', system-ui, sans-serif;
  --lib-mono: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
}

/* ── Shared shell ─────────────────────────────────────────── */

.lib {
  margin: 0;
  background: var(--lib-paper);
  color: var(--lib-ink);
  font-family: var(--lib-text);
  font-size: 18px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
.lib *, .lib *::before, .lib *::after { box-sizing: border-box; }

.lib a { color: var(--lib-ink); text-decoration-color: var(--lib-gold); text-underline-offset: 3px; }
.lib a:hover { color: var(--lib-gold-ink); }
.lib :focus-visible { outline: 2px solid var(--lib-gold-ink); outline-offset: 3px; border-radius: 2px; }

.lib-page {
  max-width: 68ch;
  margin: 0 auto;
  padding: 40px 24px 72px;
}

.lib-back {
  font-family: var(--lib-sans);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 48px;
}
.lib-back a { text-decoration: none; color: var(--lib-ink-soft); }
.lib-back a:hover { color: var(--lib-gold-ink); }

/* Masthead shared by every piece */
.lib-masthead { text-align: center; margin-bottom: 52px; }
.lib-eyebrow {
  font-family: var(--lib-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--lib-gold-ink);
}
.lib-edition {
  font-family: var(--lib-sans);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--lib-ink-faint);
  margin-top: 14px;
}
.lib-title {
  font-family: var(--lib-serif);
  font-size: 44px;
  font-weight: 600;
  line-height: 1.12;
  margin: 18px 0 0;
}
.lib-rule {
  width: 56px; height: 1px;
  background: var(--lib-gold);
  margin: 26px auto 0;
}
.lib-pullquote {
  font-family: var(--lib-serif);
  font-style: italic;
  font-size: 21px;
  line-height: 1.5;
  color: var(--lib-ink-soft);
  margin: 24px auto 0;
  max-width: 44ch;
}

/* Body copy */
.lib-body p { margin: 0 0 1.5em; }
.lib-body h2 {
  font-family: var(--lib-serif);
  font-size: 28px;
  font-weight: 600;
  line-height: 1.25;
  margin: 2.2em 0 0.8em;
}
.lib-body h3 {
  font-family: var(--lib-serif);
  font-size: 22px;
  font-weight: 600;
  margin: 1.8em 0 0.6em;
}
.lib-body ul, .lib-body ol { margin: 0 0 1.5em; padding-left: 1.4em; }
.lib-body li { margin-bottom: 0.5em; }
.lib-body blockquote {
  margin: 1.8em 0;
  padding-left: 1.2em;
  border-left: 2px solid var(--lib-gold);
  font-style: italic;
  color: var(--lib-ink-soft);
}
.lib-body hr {
  border: 0; height: 1px;
  background: var(--lib-gold);
  opacity: 0.45;
  width: 56px;
  margin: 2.5em auto;
}

/* Prev / next within a series */
.lib-prevnext {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--lib-paper-deep);
  font-family: var(--lib-sans);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.lib-prevnext a { text-decoration: none; color: var(--lib-ink-soft); }
.lib-prevnext a:hover { color: var(--lib-gold-ink); }
.lib-prevnext .lib-next { margin-left: auto; text-align: right; }

.lib-confidential {
  margin-top: 72px;
  text-align: center;
  font-family: var(--lib-serif);
  font-style: italic;
  font-size: 15px;
  color: var(--lib-ink-faint);
}

/* ── Letter (Member Insights) ─────────────────────────────── */

.lib-letter .lib-body { font-size: 19px; line-height: 1.78; }
.lib-salutation {
  font-family: var(--lib-serif);
  font-style: italic;
  font-size: 22px;
  margin: 0 0 1.6em;
}
.lib-signature { margin: 3em 0 0; }
.lib-signature .lib-sig-close {
  font-family: var(--lib-serif);
  font-style: italic;
  font-size: 19px;
  margin-bottom: 1.6em;
}
.lib-signature .lib-sig-name {
  font-family: var(--lib-serif);
  font-size: 26px;
  font-weight: 600;
}
.lib-signature .lib-sig-title {
  font-family: var(--lib-sans);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--lib-ink-faint);
  margin-top: 6px;
}
.lib-household {
  margin-top: 56px;
  padding: 28px 30px;
  border-top: 2px solid var(--lib-gold);
  background: var(--lib-paper-deep);
}
.lib-household h2 {
  font-family: var(--lib-sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--lib-gold-ink);
  margin: 0 0 0.9em;
}
.lib-household p { font-size: 17px; margin: 0 0 1em; }
.lib-household p:last-child { margin-bottom: 0; }

/* ── Bound volume (White Papers) ──────────────────────────── */

.lib-cover {
  text-align: center;
  padding: 56px 32px 48px;
  border: 1px solid var(--lib-gold);
  outline: 1px solid var(--lib-gold);
  outline-offset: 5px;
  margin-bottom: 64px;
}
.lib-cover .lib-vol {
  font-family: var(--lib-serif);
  font-size: 19px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--lib-gold-ink);
  margin-top: 20px;
}
.lib-cover .lib-title { font-size: 40px; margin-top: 14px; }
.lib-abstract {
  font-size: 16.5px;
  line-height: 1.7;
  color: var(--lib-ink-soft);
  text-align: left;
  max-width: 52ch;
  margin: 30px auto 0;
}
.lib-abstract .lib-abstract-label {
  display: block;
  font-family: var(--lib-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--lib-gold-ink);
  margin-bottom: 10px;
  text-align: center;
}
.lib-pdf-btn {
  display: inline-block;
  margin-top: 34px;
  padding: 13px 26px;
  background: var(--lib-ink);
  color: var(--lib-paper) !important;
  font-family: var(--lib-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  text-decoration: none;
  transition: background 0.2s;
}
.lib-pdf-btn:hover { background: var(--lib-gold-ink); }

/* Numbered sections via CSS counters — numbering can never
   drift from markup order. */
.lib-paper .lib-body { counter-reset: section; }
.lib-paper .lib-body h2 { counter-increment: section; counter-reset: subsection; }
.lib-paper .lib-body h2::before {
  content: counter(section) ".  ";
  color: var(--lib-gold-ink);
}
.lib-paper .lib-body h3 { counter-increment: subsection; }
.lib-paper .lib-body h3::before {
  content: counter(section) "." counter(subsection) "  ";
  color: var(--lib-gold-ink);
}

/* Table of contents: sticky beside the text on wide screens,
   collapsible above it otherwise. */
.lib-toc-list { list-style: none; margin: 0; padding: 0; }
.lib-toc-list li { margin: 0 0 10px; counter-increment: toc; }
.lib-toc-list a {
  text-decoration: none;
  color: var(--lib-ink-soft);
  font-family: var(--lib-sans);
  font-size: 13px;
  line-height: 1.5;
}
.lib-toc-list a::before, .lib-toc-list span::before { content: counter(toc) ".  "; color: var(--lib-gold-ink); }
.lib-toc-list a:hover { color: var(--lib-gold-ink); }
.lib-toc-list span {
  color: var(--lib-ink-soft);
  font-family: var(--lib-sans);
  font-size: 13px;
  line-height: 1.5;
}
.lib-toc-label {
  font-family: var(--lib-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--lib-gold-ink);
}
.lib-toc-desktop { display: none; counter-reset: toc; }
.lib-toc-mobile {
  counter-reset: toc;
  margin-bottom: 48px;
  border: 1px solid var(--lib-paper-deep);
  padding: 16px 20px;
}
.lib-toc-mobile summary {
  cursor: pointer;
  font-family: var(--lib-sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--lib-gold-ink);
}
.lib-toc-mobile .lib-toc-list { margin-top: 16px; }

@media (min-width: 1100px) {
  .lib-paper .lib-page { max-width: none; padding-left: 0; padding-right: 0; }
  .lib-paper .lib-layout {
    display: grid;
    grid-template-columns: 220px minmax(0, 68ch);
    gap: 56px;
    justify-content: center;
    padding: 0 24px;
  }
  .lib-toc-desktop {
    display: block;
    position: sticky;
    top: 40px;
    align-self: start;
    padding-top: 6px;
  }
  .lib-toc-desktop .lib-toc-label { display: block; margin-bottom: 16px; }
  .lib-toc-mobile { display: none; }
  .lib-paper .lib-cover, .lib-paper .lib-back, .lib-paper .lib-prevnext,
  .lib-paper .lib-confidential, .lib-paper .lib-masthead {
    max-width: 68ch; margin-left: auto; margin-right: auto;
  }
  .lib-paper .lib-back { padding: 0 24px; }
  /* White-paper TEASER pages have no .lib-layout grid, so their contents
     must be re-centered into the reading column too (the grid handles this
     on the full member page). Direct children only, so the member page's
     grid-nested body is untouched. */
  .lib-paper .lib-teaser-toc,
  .lib-paper > .lib-page > .lib-body,
  .lib-paper > .lib-page > .lib-lockpanel {
    max-width: 68ch; margin-left: auto; margin-right: auto;
  }
}

/* Footnotes — the "Notes" heading sits outside the section numbering */
.lib-paper .lib-body .lib-footnotes h2 { counter-increment: none; }
.lib-paper .lib-body .lib-footnotes h2::before { content: none; }
.lib-body sup { font-family: var(--lib-sans); font-size: 0.65em; }
.lib-body sup a { text-decoration: none; color: var(--lib-gold-ink); }
.lib-footnotes {
  margin-top: 64px;
  padding-top: 20px;
  border-top: 1px solid var(--lib-gold);
}
.lib-footnotes ol {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--lib-ink-soft);
  padding-left: 1.2em;
}

/* ── Field note (AI Field Notes) ──────────────────────────── */

.lib-note .lib-body { font-family: var(--lib-sans); font-size: 16px; line-height: 1.7; }
.lib-note .lib-title { font-size: 38px; }
.lib-specimen {
  margin: 2em 0;
  background: var(--lib-navy-panel);
  border-top: 2px solid var(--lib-gold);
  padding: 22px 24px;
  overflow-x: auto;
}
.lib-specimen .lib-specimen-label {
  font-family: var(--lib-sans);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--lib-gold);
  margin-bottom: 14px;
}
.lib-specimen pre {
  margin: 0;
  font-family: var(--lib-mono);
  font-size: 13px;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.88);
  white-space: pre-wrap;
}
.lib-steps { counter-reset: step; list-style: none; padding-left: 0; }
.lib-steps li {
  counter-increment: step;
  position: relative;
  padding-left: 44px;
  margin-bottom: 1.1em;
}
.lib-steps li::before {
  content: counter(step);
  position: absolute;
  left: 0; top: 0.05em;
  width: 26px; height: 26px;
  border: 1px solid var(--lib-gold-ink);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--lib-sans);
  font-size: 12px;
  font-weight: 600;
  color: var(--lib-gold-ink);
}
.lib-try {
  margin-top: 48px;
  padding: 18px 22px;
  border: 1px solid var(--lib-gold);
  font-size: 15px;
}
.lib-try strong {
  font-family: var(--lib-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--lib-gold-ink);
  display: block;
  margin-bottom: 6px;
}

/* ── Indexes (member library + public teaser index) ───────── */

.lib-index .lib-page { max-width: 760px; }
.lib-index .lib-masthead { margin-bottom: 20px; }
.lib-desc {
  text-align: center;
  font-family: var(--lib-serif);
  font-style: italic;
  font-size: 18px;
  color: var(--lib-ink-soft);
  max-width: 46ch;
  margin: 16px auto 0;
}
.lib-stats {
  text-align: center;
  font-family: var(--lib-sans);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--lib-ink-faint);
  margin: 26px 0 0;
}

/* Series jump-nav — gold-underline anchors under the masthead (no JS) */
.lib-jumpnav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px 30px;
  margin: 40px 0 8px;
}
.lib-jumpnav a {
  font-family: var(--lib-sans);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--lib-ink-soft);
  text-decoration: none;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--lib-gold);
}
.lib-jumpnav a:hover { color: var(--lib-gold-ink); border-bottom-color: var(--lib-gold-ink); }

/* Series section — a headed collection; the header is what distinguishes
   the three series from one another at a glance. */
.lib-series { margin-top: 72px; scroll-margin-top: 24px; }
.lib-series:first-of-type { margin-top: 52px; }
.lib-series-head { text-align: center; margin-bottom: 30px; }
.lib-series-glyph {
  width: 46px; height: 46px;
  margin: 0 auto 16px;
  border: 1px solid var(--lib-gold-rule);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--lib-gold-ink);
}
.lib-series-glyph svg { width: 22px; height: 22px; }
.lib-series-name {
  font-family: var(--lib-serif);
  font-size: 31px;
  font-weight: 600;
  line-height: 1.1;
}
.lib-series-desc {
  font-family: var(--lib-serif);
  font-style: italic;
  font-size: 17px;
  color: var(--lib-ink-soft);
  max-width: 46ch;
  margin: 10px auto 0;
}
.lib-series-headrule { width: 40px; height: 1px; background: var(--lib-gold); margin: 20px auto 0; }
.lib-series--soon .lib-card {
  border-bottom: 1px solid var(--lib-paper-deep);
}
.lib-series-soon {
  text-align: center;
  font-family: var(--lib-serif);
  font-style: italic;
  font-size: 16px;
  color: var(--lib-ink-faint);
  padding: 8px 0 4px;
}

/* Per-series card accents (reinforce the distinction inside each section) */
.lib-card--paper > a { border-left: 3px solid var(--lib-gold); padding-left: 22px; }
.lib-card--note .lib-card-eyebrow { font-family: var(--lib-mono); letter-spacing: 0.08em; }

/* Callout boxes for field notes (Key Point / Reminder) */
.lib-callout {
  margin: 2em 0;
  padding: 18px 22px;
  border-left: 2px solid var(--lib-gold);
  background: var(--lib-paper-deep);
}
.lib-callout-label {
  font-family: var(--lib-sans);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--lib-gold-ink);
  margin-bottom: 8px;
}
.lib-callout p { margin: 0; font-size: 15px; }

/* Archive entries */
.lib-list { list-style: none; margin: 0; padding: 0; }
.lib-card {
  position: relative;
  border-bottom: 1px solid var(--lib-paper-deep);
}
.lib-card > a {
  display: block;
  text-decoration: none;
  padding: 30px 4px;
}
.lib-card > a:hover { background: var(--lib-paper-deep); }
.lib-card-eyebrow {
  font-family: var(--lib-sans);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--lib-gold-ink);
}
.lib-card-title {
  font-family: var(--lib-serif);
  font-size: 25px;
  font-weight: 600;
  line-height: 1.2;
  margin-top: 8px;
}
.lib-card-quote {
  font-family: var(--lib-serif);
  font-style: italic;
  font-size: 16.5px;
  line-height: 1.55;
  color: var(--lib-ink-soft);
  margin-top: 8px;
}
.lib-card-date {
  font-family: var(--lib-sans);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--lib-ink-faint);
  margin-top: 12px;
}
.lib-lock {
  position: absolute;
  right: 6px;
  bottom: 30px;
  color: var(--lib-gold-ink);
  opacity: 0.75;
}
.lib-lock svg { width: 13px; height: 13px; display: block; }

/* Index footer CTAs (public teaser index) */
.lib-index-ctas {
  margin-top: 56px;
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.lib-cta-solid, .lib-cta-ghost {
  display: inline-block;
  padding: 14px 26px;
  font-family: var(--lib-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  text-decoration: none;
}
.lib-cta-solid { background: var(--lib-ink); color: var(--lib-paper) !important; }
.lib-cta-solid:hover { background: var(--lib-gold-ink); }
.lib-cta-ghost { border: 1px solid var(--lib-ink); color: var(--lib-ink); }
.lib-cta-ghost:hover { border-color: var(--lib-gold-ink); color: var(--lib-gold-ink); }

/* ── Public teaser pages ──────────────────────────────────── */

/* The teaser page contains ONLY the opening of the piece; the
   final partial paragraph dissolves into the lock panel. */
.lib-fade {
  -webkit-mask-image: linear-gradient(180deg, #000 10%, transparent 95%);
  mask-image: linear-gradient(180deg, #000 10%, transparent 95%);
}
.lib-lockpanel {
  margin-top: -8px;
  background: var(--lib-navy-panel);
  color: rgba(255, 255, 255, 0.88);
  text-align: center;
  padding: 48px 32px 52px;
}
.lib-lockpanel .lib-lockglyph { color: var(--lib-gold); margin-bottom: 18px; }
.lib-lockpanel .lib-lockglyph svg { width: 18px; height: 18px; }
.lib-lockpanel p {
  font-family: var(--lib-serif);
  font-size: 22px;
  line-height: 1.45;
  max-width: 34ch;
  margin: 0 auto;
}
.lib-lockpanel .lib-index-ctas { margin-top: 30px; }
.lib-lockpanel .lib-cta-solid { background: var(--lib-gold); color: var(--lib-ink) !important; }
.lib-lockpanel .lib-cta-solid:hover { background: #d4b45e; }
.lib-lockpanel .lib-cta-ghost { border-color: rgba(255, 255, 255, 0.5); color: rgba(255, 255, 255, 0.88); }
.lib-lockpanel .lib-cta-ghost:hover { border-color: var(--lib-gold); color: var(--lib-gold); }

/* White-paper teasers show the skeleton: abstract + section titles.
   Styled as a formal report table of contents — numbered gutter, serif
   titles, and hairline row rules. Scoped to .lib-teaser-toc so the member
   page's compact sidebar/mobile TOC keeps its small plain style. */
.lib-teaser-toc { margin: 56px 0 8px; }
.lib-teaser-toc .lib-toc-label {
  display: block;
  padding-bottom: 12px;
  margin-bottom: 2px;
  border-bottom: 1px solid var(--lib-gold-rule);
}
.lib-teaser-toc .lib-toc-list { counter-reset: toc; }
.lib-teaser-toc .lib-toc-list li {
  display: flex;
  align-items: baseline;
  gap: 20px;
  margin: 0;
  padding: 15px 2px;
  border-bottom: 1px solid var(--lib-paper-deep);
}
.lib-teaser-toc .lib-toc-list li::before {
  content: counter(toc, decimal-leading-zero);
  flex-shrink: 0;
  min-width: 1.9em;
  font-family: var(--lib-serif);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--lib-gold-ink);
}
.lib-teaser-toc .lib-toc-list span,
.lib-teaser-toc .lib-toc-list a {
  font-family: var(--lib-serif);
  font-size: 21px;
  font-weight: 500;
  line-height: 1.3;
  color: var(--lib-ink);
}
.lib-teaser-toc .lib-toc-list a { text-decoration: none; }
.lib-teaser-toc .lib-toc-list a:hover { color: var(--lib-gold-ink); }
/* the row number lives on li::before; suppress the inline counter */
.lib-teaser-toc .lib-toc-list span::before,
.lib-teaser-toc .lib-toc-list a::before { content: none; }

/* ── Small screens (the letter must be beautiful at 380px) ── */

@media (max-width: 480px) {
  .lib { font-size: 17px; }
  .lib-page { padding: 28px 20px 56px; }
  .lib-back { margin-bottom: 36px; }
  .lib-title { font-size: 32px; }
  .lib-cover { padding: 40px 20px 36px; outline-offset: 4px; }
  .lib-cover .lib-title { font-size: 30px; }
  .lib-letter .lib-body { font-size: 17.5px; }
  .lib-note .lib-title { font-size: 29px; }
  .lib-series-name { font-size: 27px; }
  .lib-lockpanel p { font-size: 19px; }
}

/* ── Accessibility & motion ───────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  .lib *, .lib *::before, .lib *::after {
    transition: none !important;
    animation: none !important;
    scroll-behavior: auto !important;
  }
}

/* ── Print: letters and notes print like stationery; papers
      point readers to the PDF instead ─────────────────────── */

@media print {
  .lib { background: #fff; color: #000; font-size: 12pt; }
  .lib-back, .lib-prevnext, .lib-jumpnav, .lib-pdf-btn,
  .lib-lockpanel, .lib-index-ctas, .lib-lock { display: none !important; }
  .lib-page { max-width: none; padding: 0; }
  .lib-masthead { margin-bottom: 24pt; }
  .lib-household { border-top: 1pt solid #000; background: none; }
  .lib-specimen { background: none; border: 1pt solid #000; }
  .lib-specimen pre { color: #000; }
  .lib-confidential { margin-top: 36pt; }
  .lib-toc-desktop, .lib-toc-mobile { display: none; }
  .lib a { text-decoration: none; color: #000; }
}