/* ============================================================
   Matthew McMillan — site stylesheet
   ------------------------------------------------------------
   Palette
     ink        #353535   body text
     navy       #2F5875   headings, nav bar, wordmark
     link       #2261B4   links and hover accents
     mist       #EFF2F4   light panels (card headers)
     line       #D8DDE1   hairlines and borders
     muted      #5E6B76   secondary text (dates, captions)
   Fonts
     body       'Source Serif 4' (serif)
     headings   'Source Sans 3'  (sans)
   ============================================================ */

:root {
  --ink:   #353535;
  --navy:  #2F5875;
  --link:  #1F39C2;
  --mist:  #EFF2F4;
  --mist-hover: #E3E9ED;
  --line:  #D8DDE1;
  --muted: #5E6B76;
  --serif: 'Crimson Pro', Georgia, 'Times New Roman', serif;
  --sans:  'Source Sans 3', 'Segoe UI', Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: #FFFFFF;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 18px; /* Crimson Pro runs small at a given px size */
  line-height: 1.6;
}

/* ---------- links ---------- */

a {
  color: var(--link);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

/* ---------- header & navigation ---------- */

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: #fff;
  padding: 0.4rem 0.8rem;
}
.skip-link:focus { left: 0.5rem; z-index: 10; }

.masthead {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0.55rem 1.25rem 0.5rem 0.6rem;
}
.masthead a {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.15;
  color: var(--navy);
}
.masthead a:hover {
  text-decoration: none;
  color: var(--link);
}
.masthead-email {
  font-family: var(--sans);
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.02em;
  line-height: 1.3;
}

.site-nav {
  background: var(--navy);
  font-family: var(--sans);
}
.site-nav-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.25rem 0 0.6rem;
  display: flex;
  flex-wrap: wrap;
}
.site-nav a {
  display: block;
  padding: 0.5rem 1rem;
  color: #FFFFFF;
  font-size: 0.95rem;
  border-right: 1px solid rgba(255, 255, 255, 0.25);
  transition: background-color 0.12s ease;
}
.site-nav a:first-child {
  border-left: 1px solid rgba(255, 255, 255, 0.25);
}
.site-nav a:hover {
  background: rgba(255, 255, 255, 0.12); /* standard subtle lighten on a dark banner */
  text-decoration: none;
}
.site-nav a[aria-current="page"] {
  background: rgba(255, 255, 255, 0.2);
}

/* ---------- page title ---------- */

.page-title {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.25rem;
  text-align: center;
}
.page-title h1 {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 2.05rem;
  color: var(--navy);
  margin: 1.6rem 0 0.1rem;
  line-height: 1.15;
}
.tagline {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.25rem;
  color: var(--navy);
  margin: 0 0 0.8rem;
  line-height: 1.2;
}

/* ---------- layout: sidebar + main ---------- */

.layout {
  max-width: 1080px;
  margin: 1rem auto 0;
  padding: 0 1.25rem 0 0.6rem;
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr);
  gap: 1.05rem;
  align-items: start;
}
.layout.no-toc {
  display: block;
  max-width: 50rem;
}

main { max-width: 46rem; min-width: 0; }

/* ---------- contents (table of contents) ---------- */

.toc {
  position: sticky;
  top: 1.25rem;
  font-family: var(--sans);
  font-size: 0.88rem;
}
.toc summary {
  cursor: pointer;
  list-style: none;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--muted);
  padding-bottom: 0.4rem;
}
.toc summary::-webkit-details-marker { display: none; }
.toc summary::after { content: ""; }
.toc nav a {
  display: block;
  color: #4A5763;
  padding: 0.24rem 0 0.24rem 0.75rem;
  border-left: 2px solid var(--line);
  line-height: 1.4;
}
.toc nav a.toc-sub { padding-left: 1.6rem; font-size: 0.83rem; }
.toc nav a:hover {
  color: var(--link);
  text-decoration: none;
}
.toc nav a.current {
  color: var(--navy);
  border-left-color: var(--navy);
  font-weight: 600;
}

/* ---------- headings & prose ---------- */

main h2 {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 1.4rem;
  color: var(--navy);
  margin: 2.6rem 0 0.9rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 1.5rem;
  clear: both; /* headings never wrap beside the floated bio photo */
}
main > section:first-child h2,
main h2:first-child { margin-top: 0.5rem; }
main h3 {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 1.08rem;
  color: var(--navy);
  margin: 1.9rem 0 0.6rem;
  scroll-margin-top: 1.5rem;
}
main p { margin: 0 0 1rem; }

.lead { font-size: 1.02em; }

/* ---------- bio (home page) ---------- */

/* photo floats right; text flows beside it and then fills the full width */
.bio-photo {
  float: right;
  width: 240px;
  margin: 0.35rem 0 1rem 2rem;
}
.bio-photo img {
  width: 100%;
  height: auto;
  border-radius: 6px;
  display: block;
}
.bio-photo figcaption {
  font-family: var(--sans);
  font-size: 0.78rem;
  color: var(--muted);
  text-align: center;
  padding-top: 0.35rem;
}

/* ---------- timeline ---------- */

.timeline { margin: 0.5rem 0 0; }
.tl-row {
  display: grid;
  grid-template-columns: 6rem minmax(0, 1fr);
  gap: 1.25rem;
  padding: 0.45rem 0;
}
.tl-date {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--navy);
  text-align: left;
  padding-top: 0.15rem;
  white-space: nowrap;
}
.tl-event { min-width: 0; }
.tl-break {
  border: none;
  border-top: 1px solid var(--line);
  margin: 0.9rem 0;
}

/* ---------- collapsible publication cards ---------- */

.pub {
  border: 1px solid var(--line);
  border-radius: 6px;
  margin: 0.7rem 0;
  background: #FFFFFF;
  overflow: hidden;
  scroll-margin-top: 1.5rem;
}
.pub-toggle {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  width: 100%;
  padding: 0.6rem 0.95rem;
  background: var(--mist);
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--serif);
  font-size: 1.1rem;
  color: var(--ink);
  line-height: 1.45;
  transition: background-color 0.12s ease;
}
.pub-toggle:hover { background: var(--mist-hover); }
.pub-date {
  flex: 0 0 5.6rem;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.8rem;
  color: var(--muted);
  text-align: right;
  letter-spacing: 0.02em;
}
.pub-title { flex: 1; min-width: 0; }
.pub-icon {
  flex: 0 0 auto;
  font-family: var(--sans);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--navy);
  align-self: center;
  width: 1.2em;
  text-align: center;
}
.pub-icon::before { content: "+"; }
.pub.open .pub-icon::before { content: "\2212"; } /* minus sign */

.pub-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.25s ease;
}
.pub.open .pub-body { grid-template-rows: 1fr; }
.pub-body-inner {
  overflow: hidden;
  min-height: 0;
}
.pub.open .pub-body-inner { border-top: 1px solid var(--line); }
.pub-body-inner > div {
  padding: 0.85rem 1.1rem 0.2rem 6.6rem;
}
.pub-links {
  font-family: var(--sans);
  font-size: 0.88rem;
}
.pub-credit {
  font-style: italic;
  color: var(--muted);
}

/* ---------- simple document rows (essays) ---------- */

.doc-row {
  display: grid;
  grid-template-columns: 6rem minmax(0, 1fr);
  gap: 1.25rem;
  padding: 0.4rem 0;
}
.doc-date {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--muted);
  text-align: right;
  padding-top: 0.15rem;
}

/* ---------- outline list (essay plans) ---------- */

ul.outline {
  list-style: none;
  margin: 0.3rem 0 1rem;
  padding-left: 1.4rem;
}
ul.outline li { padding: 0.1rem 0; }
ul.outline li::before {
  content: "\00A7";  /* § */
  color: var(--muted);
  margin-right: 0.55em;
  font-family: var(--sans);
}

/* ---------- table notes (Leibniz texts table) ---------- */

ul.table-notes {
  list-style: none;
  margin: 0.3rem 0 1rem;
  padding-left: 1.4rem;
}
ul.table-notes li {
  padding: 0.1rem 0;
  text-indent: -0.85em;
}
ul.table-notes li::before {
  content: "\2022";  /* • */
  color: var(--muted);
  margin-right: 0.55em;
}

/* ---------- book callout (Leibniz) ---------- */

.book-callout {
  border: 1px solid var(--line);
  border-left: 4px solid var(--navy);
  border-radius: 6px;
  background: var(--mist);
  padding: 1.1rem 1.4rem;
  margin: 1.3rem 0;
}
.book-callout p { margin: 0.15rem 0; }
.book-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--navy);
}
.book-sub { font-style: italic; }
.book-credit {
  font-family: var(--sans);
  font-size: 0.86rem;
  color: var(--muted);
  padding-top: 0.35rem;
}

/* ---------- data table (Leibniz texts & drafts) ---------- */

.table-scroll {
  overflow-x: auto;
  margin: 1.2rem 0;
  border: 1px solid var(--line);
  border-radius: 6px;
}
table.docs {
  border-collapse: collapse;
  font-family: var(--sans);
  font-size: 0.82rem;
  line-height: 1.5;
  width: 100%;
  min-width: 730px;
}
table.docs th {
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--muted);
  text-align: left;
  padding: 0.5rem 0.5rem;
  background: var(--mist);
  border-bottom: 2px solid var(--line);
  white-space: nowrap;
}
table.docs td {
  padding: 0.45rem 0.5rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
table.docs tr:last-child td { border-bottom: none; }
table.docs tr.group td {
  background: var(--mist);
  font-weight: 600;
  color: var(--navy);
  font-size: 0.82rem;
}
table.docs .num { text-align: right; white-space: nowrap; }
table.docs .abbr { font-weight: 600; white-space: nowrap; }
table.docs .year { white-space: nowrap; }
table.docs td.quality { text-align: center; white-space: nowrap; }
.check {
  font-family: var(--sans);
  font-weight: 700;
  color: #9AA6AF;
  cursor: default;
}
.check-double { letter-spacing: -0.34em; padding-right: 0.34em; }
.check-final { color: #34B7F1; }
.table-legend {
  font-family: var(--sans);
  font-size: 0.82rem;
  color: var(--muted);
  margin-top: -0.5rem;
}

/* ---------- expand/collapse all control ---------- */

.expand-all-bar {
  text-align: right;
  margin: 0 0 -0.5rem;
}
.expand-all {
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--sans);
  font-size: 0.74rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  padding: 0.2rem 0;
}
.expand-all:hover { color: var(--link); }

/* ---------- footer ---------- */

#footer {
  margin-top: 5rem;
  background: var(--navy);
  color: #FFFFFF;
  font-family: var(--sans);
  font-size: 0.85rem;
  text-align: center;
  padding: 1.1rem 1.25rem;
}
#footer a { color: #CFE0EE; }

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 900px) {

  .layout {
    display: block;
  }

  main { max-width: none; }

  /* Contents collapses to a tap-to-open box above the text */
  .toc {
    position: static;
    margin-bottom: 1.5rem;
  }
  .toc details {
    border: 1px solid var(--line);
    border-radius: 6px;
    background: var(--mist);
    padding: 0.55rem 0.9rem;
  }
  .toc summary { padding-bottom: 0; }
  .toc summary::after { content: "  \25BE"; } /* small down triangle */
  .toc details[open] summary { padding-bottom: 0.4rem; }
  .toc nav a { border-left-color: transparent; }
  .toc nav a.current {
    border-left-color: transparent;
    font-weight: 600;
  }

  .bio-photo {
    float: none;
    width: min(280px, 70%);
    margin: 0 auto 1.25rem;
  }
}

@media (max-width: 600px) {

  body { font-size: 16px; }

  .masthead { padding: 0.5rem 1rem 0.45rem 0.6rem; }
  .site-nav-inner { padding: 0; }
  .site-nav a {
    flex: 1 1 auto;
    text-align: center;
    padding: 0.5rem 0.6rem;
    font-size: 0.9rem;
  }
  .page-title h1 { font-size: 1.8rem; }

  .tl-row, .doc-row {
    grid-template-columns: 1fr;
    gap: 0.1rem;
    padding: 0.55rem 0;
  }
  .tl-date, .doc-date { text-align: left; padding-top: 0; }
  .tl-break { margin-left: 0; }

  .pub-toggle {
    flex-wrap: wrap;
    gap: 0.2rem 1rem;
    position: relative;
    padding-right: 2.4rem;
  }
  .pub-date {
    flex: 1 1 100%;
    text-align: left;
    order: -1;
  }
  .pub-icon {
    position: absolute;
    right: 0.85rem;
    top: 50%;
    transform: translateY(-50%);
  }
  .pub-body-inner > div { padding: 0.85rem 1rem 0.2rem; }
}

/* ============================================================
   Stacked layout for the texts table on phones
   ============================================================ */

@media (max-width: 640px) {
  .table-scroll {
    overflow: visible;
    border: none;
    border-radius: 0;
  }
  table.docs { min-width: 0; }
  table.docs,
  table.docs tbody,
  table.docs tr,
  table.docs td { display: block; }
  table.docs thead { display: none; }
  table.docs tr {
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #FFFFFF;
    padding: 0.55rem 0.85rem 0.65rem;
    margin-bottom: 0.75rem;
  }
  table.docs td {
    border: none;
    padding: 0.1rem 0;
    text-align: left;
    white-space: normal;
  }
  table.docs td:nth-child(8),
  table.docs td:nth-child(9) { white-space: normal; }
  table.docs td:empty { display: none; }
  /* year + abbreviation form an inline heading line, title below */
  table.docs .year,
  table.docs .abbr {
    display: inline-block;
    font-weight: 600;
    color: var(--navy);
    padding-right: 0.4rem;
  }
  table.docs td:nth-child(3) {
    font-weight: 600;
    font-size: 0.98rem;
    padding-bottom: 0.35rem;
  }
  /* field labels */
  table.docs td:nth-child(n+4)::before {
    font-weight: 600;
    color: var(--muted);
  }
  table.docs td:nth-child(4)::before { content: "Words: "; }
  table.docs td:nth-child(5)::before { content: "Catalog: "; }
  table.docs td:nth-child(6)::before { content: "Typed: "; }
  table.docs td:nth-child(7)::before { content: "Hand: "; }
  table.docs td:nth-child(8)::before { content: "Stamped: "; }
  table.docs td:nth-child(9)::before { content: "English: "; }
  table.docs td:nth-child(10)::before { content: "Bilingual: "; }
  table.docs td:nth-child(11)::before { content: "Quality: "; }
  table.docs td.quality { text-align: left; }
}

/* ============================================================
   Print
   ============================================================ */

@media print {
  .skip-link,
  .site-nav,
  .toc,
  .expand-all-bar,
  #footer { display: none; }

  body { font-size: 11pt; }
  .masthead { padding-left: 0; }
  .layout { display: block; padding: 0 0.5cm; }
  main { max-width: none; }

  /* publication cards print fully expanded */
  .pub { break-inside: avoid; }
  .pub-body { grid-template-rows: 1fr !important; }
  .pub-body-inner { border-top: 1px solid var(--line); }
  .pub-icon { display: none; }

  a { color: inherit; }

  .table-scroll { overflow: visible; border: none; }
  table.docs { min-width: 0; font-size: 8pt; }
}