/* MGH/McLean Residency Training Program in Psychiatry - manual stylesheet */

:root {
  --paper: #f4f2ec;
  --sheet: #ffffff;
  --rail: #eceae3;
  --ink: #1c1c1a;
  --meta: #55524b;
  --accent: #8a1116;
  --visited: #6f6a2a;
  --rule: #c8c3b6;
  --serif: Georgia, "Times New Roman", Times, serif;
  --display: "Palatino Linotype", "Book Antiqua", Palatino, Georgia, serif;
  --mono: "DejaVu Sans Mono", "Courier New", Courier, monospace;
  --ui: Verdana, "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* { 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: 1.62;
}

a { color: var(--accent); }
a:visited { color: var(--visited); }
a:hover { text-decoration: none; }
a:focus-visible,
.skip:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.skip {
  position: absolute;
  left: -9999px;
  background: var(--sheet);
  padding: 8px 12px;
  font-family: var(--mono);
  font-size: 12.5px;
}
.skip:focus { left: 8px; top: 8px; z-index: 10; }

/* ------------------------------------------------------------ manual header */

.manual-head {
  background: var(--sheet);
  border-bottom: 2px solid var(--ink);
}

.manual-head-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px 24px 12px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas: "mark edition" "sub edition";
  align-items: baseline;
  column-gap: 24px;
}

.manual-mark {
  grid-area: mark;
  margin: 0;
  font-family: var(--display);
  font-size: 30px;
  line-height: 1.15;
  letter-spacing: 0.01em;
}
.manual-mark a { color: var(--ink); text-decoration: none; }
.manual-mark a:hover { color: var(--accent); }

.manual-sub {
  grid-area: sub;
  margin: 2px 0 0;
  font-family: var(--ui);
  font-size: 13px;
  color: var(--meta);
}

.manual-edition {
  grid-area: edition;
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--meta);
  white-space: nowrap;
}
.manual-edition span { color: var(--ink); }

.utility {
  border-top: 1px solid var(--rule);
  background: var(--rail);
}
.utility ul {
  max-width: 1280px;
  margin: 0 auto;
  padding: 8px 24px;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 24px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* -------------------------------------------------------------------- shell */

.manual-shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 32px 24px 48px;
  display: grid;
  grid-template-columns: 276px minmax(0, 1fr) 204px;
  column-gap: 40px;
  align-items: start;
}

.manual-shell--two { grid-template-columns: 276px minmax(0, 1fr); }

/* Front matter places the on-page rail before the pager in the DOM, so the
   pager is positioned explicitly under the reading column. */
.manual-shell--home > .rail-slot { grid-column: 1; grid-row: 1 / span 2; }
.manual-shell--home > .reading { grid-column: 2; grid-row: 1; }
.manual-shell--home > .onpage { grid-column: 3; grid-row: 1; }
.manual-shell--home > .pager {
  grid-column: 2;
  grid-row: 2;
  margin-top: 20px;
  background: var(--sheet);
  border: 1px solid var(--rule);
  border-top: 1px solid var(--rule);
  padding: 16px 32px 20px;
}

/* ---------------------------------------------------------------- rail tree */

.rail-tree {
  font-family: var(--ui);
  font-size: 13.5px;
  line-height: 1.45;
  border-right: 1px solid var(--rule);
  padding-right: 20px;
  position: sticky;
  top: 16px;
  max-height: calc(100vh - 32px);
  overflow-y: auto;
}

.rail-title {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--meta);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 6px;
}

.rail-tree ol { list-style: none; margin: 0; padding: 0; }
.rail-tree li { margin: 0 0 6px; }
.rail-tree a { text-decoration: none; display: block; padding: 2px 0; }
.rail-tree a:hover { text-decoration: underline; }
.rail-tree a[aria-current="page"] {
  color: var(--ink);
  font-weight: bold;
  border-left: 3px solid var(--accent);
  margin-left: -8px;
  padding-left: 5px;
}
.tree-num {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--meta);
  margin-right: 6px;
}
.tree-part > a { color: var(--ink); font-weight: bold; }
.rail-tree > ol > li { margin-bottom: 14px; }
.rail-tree ol ol { margin: 6px 0 0 12px; }
.tree-leaf { border-left: 1px solid var(--rule); padding-left: 10px !important; }
.tree-leaf a { font-size: 13px; }

/* ------------------------------------------------------------ reading column */

.reading {
  background: var(--sheet);
  border: 1px solid var(--rule);
  padding: 28px 32px 32px;
  min-width: 0;
}

.crumbs { margin: 0 0 16px; }
.crumbs ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--meta);
}
.crumbs li + li::before { content: "/"; margin: 0 8px; color: var(--rule); }
.crumbs a { text-decoration: none; }

.stamp {
  margin: 0 0 6px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  border-left: 3px solid var(--accent);
  padding-left: 8px;
  margin-left: -43px;
  width: 220px;
}

.reading h1 {
  font-family: var(--display);
  font-size: clamp(26px, 3.2vw, 40px);
  line-height: 1.14;
  margin: 0 0 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--rule);
  max-width: 30ch;
}

.reading h2 {
  font-family: var(--display);
  font-size: 21px;
  line-height: 1.25;
  margin: 30px 0 10px;
  max-width: 40ch;
}

.chapter-body { max-width: 68ch; }
.chapter-body p { margin: 0 0 14px; }
.chapter-body ul,
.chapter-body ol { margin: 0 0 16px; padding-left: 24px; }
.chapter-body li { margin: 0 0 6px; }
.chapter-body strong { font-weight: bold; }

section { max-width: none; }

/* ------------------------------------------------------------- data tables */

.datatable {
  overflow-x: auto;
  border: 1px solid var(--rule);
  border-right-width: 2px;
  margin: 0 0 22px;
}
.datatable table {
  border-collapse: collapse;
  width: 100%;
  min-width: 520px;
  font-family: var(--ui);
  font-size: 13.5px;
  line-height: 1.45;
}
.datatable th,
.datatable td {
  border: 1px solid var(--rule);
  padding: 7px 10px;
  vertical-align: top;
  text-align: left;
}
.datatable thead th {
  background: var(--rail);
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.datatable tbody th { background: #f7f6f2; font-weight: bold; }
.datatable p { margin: 0 0 6px; }

/* ------------------------------------------------------------ index listing */

.chapter-index { margin: 8px 0 24px; }
.idx { list-style: none; margin: 0; padding: 0; }
.idx li {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: baseline;
  padding: 9px 0;
  border-bottom: 1px solid var(--rule);
}
.idx-num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--meta);
}
.idx a { text-decoration: none; }
.idx a:hover { text-decoration: underline; }
.idx-meta {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--meta);
}

/* --------------------------------------------------------- homepage modules */

.starts { list-style: none; margin: 0; padding: 0; }
.starts li {
  border-left: 3px solid var(--rule);
  padding: 0 0 0 16px;
  margin: 0 0 20px;
}
.starts-label {
  margin: 0;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--meta);
}
.starts-link { margin: 2px 0 4px; font-family: var(--display); font-size: 19px; }
.starts-link a { text-decoration: none; }
.starts-text { margin: 0; max-width: 68ch; color: var(--meta); font-size: 16px; }

.steps { margin: 0 0 22px; padding-left: 26px; max-width: 68ch; }
.steps li { margin: 0 0 8px; }

.note {
  margin: 0 0 12px;
  border-left: 3px solid var(--accent);
  background: #faf7f2;
  padding: 8px 12px;
  font-size: 15px;
  max-width: 68ch;
}

.factgrid {
  margin: 0;
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 0;
}
.factgrid dt {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 10px 12px 10px 0;
  border-top: 1px solid var(--rule);
}
.factgrid dd {
  margin: 0;
  padding: 10px 0;
  border-top: 1px solid var(--rule);
  font-size: 15.5px;
}

/* ------------------------------------------------------------- on-page rail */

.onpage {
  font-family: var(--ui);
  font-size: 12.5px;
  line-height: 1.4;
  position: sticky;
  top: 16px;
  border-top: 2px solid var(--ink);
  padding-top: 10px;
}
.onpage-empty { border: 0; }
.onpage-title {
  margin: 0 0 8px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--meta);
}
.onpage ol { list-style: none; margin: 0; padding: 0; }
.onpage li { margin: 0 0 7px; }
.onpage a { text-decoration: none; }
.onpage a:hover { text-decoration: underline; }
.onpage-inline { display: none; }

/* -------------------------------------------------------------------- pager */

.pager {
  margin-top: 32px;
  border-top: 1px solid var(--rule);
  padding-top: 14px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.pager a,
.pager span.is-empty {
  display: block;
  font-family: var(--ui);
  font-size: 14px;
  text-decoration: none;
  border: 1px solid var(--rule);
  padding: 10px 12px;
}
.pager span.is-empty { color: var(--meta); }
.pager span span,
.pager a span {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--meta);
  margin-bottom: 3px;
}
.pager-next { text-align: right; }

/* ----------------------------------------------------------------- colophon */

.colophon {
  border-top: 2px solid var(--ink);
  background: var(--rail);
}
.colophon-grid {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  font-family: var(--ui);
  font-size: 13px;
}
.colophon-label {
  margin: 0 0 6px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--meta);
}
.colophon p { margin: 0 0 6px; }
.colophon-meta { color: var(--meta); }
.colophon-parts { list-style: none; margin: 0; padding: 0; }
.colophon-parts li { margin: 0 0 4px; }
.colophon-return {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px 24px;
  font-family: var(--ui);
  font-size: 13px;
}

/* ------------------------------------------------------------- transformations */

@media (max-width: 1080px) {
  .manual-shell { grid-template-columns: 250px minmax(0, 1fr) 180px; column-gap: 28px; }
  .manual-shell--two { grid-template-columns: 250px minmax(0, 1fr); }
  .stamp { margin-left: -30px; }
}

@media (max-width: 900px) {
  .manual-shell,
  .manual-shell--two { grid-template-columns: 250px minmax(0, 1fr); }
  .onpage { display: none; }
  .manual-shell--home > .onpage { display: none; }
  .onpage-inline { display: block; }
  .onpage-inline .onpage {
    display: block;
    position: static;
    border: 1px solid var(--rule);
    border-top: 2px solid var(--ink);
    padding: 12px 14px;
    margin: 0 0 22px;
  }
  .onpage-inline .onpage ol { columns: 2; column-gap: 24px; }
}

@media (max-width: 760px) {
  .manual-shell--home > .rail-slot,
  .manual-shell--home > .reading,
  .manual-shell--home > .pager {
    grid-column: 1;
    grid-row: auto;
  }
  .manual-shell,
  .manual-shell--two {
    grid-template-columns: minmax(0, 1fr);
    padding: 20px 16px 40px;
    row-gap: 20px;
  }
  .rail-tree {
    position: static;
    border-right: 0;
    border: 1px solid var(--rule);
    background: var(--sheet);
    padding: 14px 16px;
    order: -1;
    /* Keep the grouped index visible but compact so the chapter text is
       reachable within the first screen. */
    max-height: 30vh;
    overflow-y: auto;
  }
  .rail-tree ol ol { margin-left: 8px; }
  .reading { padding: 20px 18px 24px; }
  .stamp { margin-left: 0; width: auto; }
  .manual-head-inner {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: "mark" "sub" "edition";
    padding: 14px 16px 10px;
  }
  .manual-edition { margin-top: 6px; }
  .utility ul { padding: 8px 16px; gap: 4px 16px; }
  .colophon-grid { grid-template-columns: minmax(0, 1fr); padding: 20px 16px; }
  .colophon-return { padding: 0 16px 20px; }
  .factgrid { grid-template-columns: minmax(0, 1fr); }
  .factgrid dt { padding-bottom: 0; border-bottom: 0; }
  .factgrid dd { border-top: 0; padding-top: 2px; }
  .onpage-inline .onpage ol { columns: 1; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .idx li { grid-template-columns: 34px minmax(0, 1fr); }
  .idx-meta { grid-column: 2; }
  .pager { grid-template-columns: minmax(0, 1fr); }
  .pager-next { text-align: left; }
}