/* StevensED Course Catalog — department rail + ledger.
   Self-contained: brand tokens from the StevensED standards (stevensed.org/brand/),
   light by default, dark when the reader's system asks for it. */

:root {
  --navy: #2F3E68;
  --navy-deep: #243156;
  --navy-ink: #1f2948;
  --red: #C13F44;
  --red-deep: #9a2d33;
  --cream: #F7F5F1;
  --parchment: #efebe3;
  --laurel: #3f684f;
  --gold: #8a651c;
  --slate: #59697a;

  --paper: var(--cream);
  --surface: #ffffff;
  --ink: var(--navy-ink);
  --ink-soft: #3a4566;
  --ink-mute: #5a6480;
  --rule: #ddd7ca;
  --rule-strong: #c9c1b0;
  --rail: var(--navy);
  --rail-ink: #f3efe6;
  --rail-mute: #b9c1d8;
  --rail-active: var(--cream);
  --rail-active-ink: var(--navy-ink);
  --status-offered: var(--laurel);
  --status-inquire: var(--gold);
  --status-dev: var(--slate);
  --focus: var(--navy);
  --hl: #f3dfa6;

  --serif: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --ease: cubic-bezier(.16, 1, .3, 1);
  --rail-w: 15.5rem;
  --measure: 68ch;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #10141d;
    --surface: #161b27;
    --ink: #ece7dc;
    --ink-soft: #cfc9bb;
    --ink-mute: #9a9688;
    --rule: #262d3d;
    --rule-strong: #353e53;
    --rail: #1a2238;
    --rail-ink: #ece7dc;
    --rail-mute: #9aa3bd;
    --rail-active: #ece7dc;
    --rail-active-ink: #1a2238;
    --status-offered: #7cc48a;
    --status-inquire: #e0b65c;
    --status-dev: #9aa8b8;
    --focus: #ece7dc;
    --hl: #5b4a1d;
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 1.5rem; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1rem/1.6 var(--sans);
  font-feature-settings: "ss01", "cv11";
  caret-color: var(--red);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--navy); color: var(--cream); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 3px; }
.masthead :focus-visible, .rail :focus-visible, .close :focus-visible { outline-color: var(--cream); }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: .22em; }
a:hover { text-decoration-color: var(--red); }
img { max-width: 100%; display: block; }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; letter-spacing: -.01em; line-height: 1.1; text-wrap: balance; margin: 0; }
p { margin: 0; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: 1rem; top: -4rem; z-index: 50; background: var(--cream); color: var(--navy-ink); padding: .6rem 1rem; border-radius: 6px; font-weight: 600; }
.skip-link:focus { top: 1rem; }
html { scrollbar-color: var(--rule-strong) transparent; }
.wrap { width: min(100% - 2.5rem, 76rem); margin-inline: auto; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .55rem; justify-content: center;
  min-height: 2.75rem; padding: .7rem 1.25rem; border-radius: 999px;
  font: 600 .9375rem/1 var(--sans); text-decoration: none; white-space: nowrap;
  transition: background-color .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease);
}
.btn svg { width: 1.05em; height: 1.05em; flex: none; }
.btn .short { display: none; }
.btn--primary { background: var(--red); color: #fff; box-shadow: 0 4px 12px -6px rgba(0, 0, 0, .35); }
.btn--primary:hover { background: var(--red-deep); transform: translateY(-1px); }
.btn--quiet { color: inherit; border: 1px solid currentColor; }
.btn--quiet:hover { background: rgba(127, 127, 127, .12); }

/* ---------- Masthead ---------- */
.masthead { background: var(--navy); color: var(--rail-ink); }
@media (prefers-color-scheme: dark) { .masthead { background: var(--rail); } }
.masthead__bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: 1rem; border-bottom: 1px solid rgba(255, 255, 255, .12); }
.mark { display: flex; align-items: center; gap: .75rem; text-decoration: none; color: inherit; }
.mark img { height: 2.25rem; width: calc(2.25rem * 256 / 190); object-fit: cover; }
.mark__name { font: 600 1.25rem/1 var(--serif); letter-spacing: .01em; }
.mark__sub { display: block; margin-top: .2rem; font: 500 .6875rem/1 var(--sans); letter-spacing: .14em; text-transform: uppercase; color: var(--rail-mute); }
.toplinks { display: flex; align-items: center; gap: 1.5rem; font-size: .9375rem; }
.toplinks a:not(.btn) { color: var(--rail-ink); text-decoration: none; opacity: .88; }
.toplinks a:not(.btn):hover, .toplinks a[aria-current="page"] { opacity: 1; text-decoration: underline; text-decoration-color: var(--red); }

.masthead__title { padding-block: clamp(2.25rem, 6vw, 4rem) 1.75rem; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 1rem 3rem; align-items: end; }
.masthead__intro { display: grid; gap: 1rem; }

/* 2026–27 at a glance: the edition's dates and counts, set like a bulletin's front matter */
.glance { border-left: 1px solid rgba(255, 255, 255, .2); padding: .25rem 0 .25rem 1.75rem; display: grid; gap: 1rem; min-width: 17rem; }
.glance dl { margin: 0; display: grid; gap: .85rem; }
.glance dt { font: 600 .6875rem/1 var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--rail-mute); margin-bottom: .3rem; }
.glance dd { margin: 0; font-size: .8125rem; line-height: 1.4; color: var(--rail-mute); }
.glance__dates { display: block; font: 600 1.375rem/1.15 var(--serif); color: #fff; font-variant-numeric: lining-nums; }
@media (prefers-color-scheme: dark) { .glance__dates { color: var(--rail-ink); } }
.glance a { font-size: .8125rem; font-weight: 600; color: var(--rail-ink); text-decoration-color: var(--red); }
.masthead__title h1 { font-size: clamp(2.6rem, 7vw, 4.75rem); font-weight: 600; color: #fff; }
@media (prefers-color-scheme: dark) { .masthead__title h1 { color: var(--rail-ink); } }
.masthead__lead { max-width: 46ch; font-size: clamp(1.0625rem, 2vw, 1.25rem); line-height: 1.5; color: var(--rail-mute); }
.masthead__lead strong { color: var(--rail-ink); font-weight: 600; }

/* Finder: search + status, sitting on the masthead's lower edge */
.finder { display: grid; grid-template-columns: 1fr auto; gap: .75rem; align-items: center; padding-bottom: 1.75rem; }
.search { position: relative; }
.search svg { position: absolute; left: 1.05rem; top: 50%; translate: 0 -50%; width: 1.15rem; height: 1.15rem; color: var(--ink-mute); pointer-events: none; }
.search input {
  width: 100%; min-height: 3.25rem; padding: .8rem 2.75rem .8rem 3rem;
  border: 0; border-radius: 999px; background: var(--paper); color: var(--ink);
  font: 400 1.0625rem/1.2 var(--sans);
  box-shadow: 0 10px 30px -14px rgba(0, 0, 0, .45);
}
.search input::placeholder { color: var(--ink-mute); }
.search input::-webkit-search-cancel-button { display: none; }
.search__clear { position: absolute; right: .55rem; top: 50%; translate: 0 -50%; width: 2.2rem; height: 2.2rem; border: 0; border-radius: 50%; background: transparent; color: var(--ink-mute); cursor: pointer; display: grid; place-items: center; }
.search__clear:hover { background: var(--parchment); color: var(--ink); }
@media (prefers-color-scheme: dark) { .search__clear:hover { background: var(--rule); } }
.search__clear svg { position: static; translate: none; width: 1rem; height: 1rem; }
.search__clear[hidden] { display: none; }

.status-filter { display: flex; gap: .25rem; padding: .3rem; border-radius: 999px; background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .14); }
.status-filter button {
  border: 0; background: transparent; color: var(--rail-ink); cursor: pointer;
  min-height: 2.4rem; padding: .45rem .95rem; border-radius: 999px;
  font: 500 .875rem/1 var(--sans); white-space: nowrap;
  transition: background-color .2s var(--ease), color .2s var(--ease);
}
.status-filter button:hover { background: rgba(255, 255, 255, .1); }
.status-filter button[aria-pressed="true"] { background: var(--cream); color: var(--navy-ink); font-weight: 600; }
@media (prefers-color-scheme: dark) { .status-filter button[aria-pressed="true"] { background: var(--rail-ink); color: var(--rail); } }

/* ---------- Layout: rail + ledger ---------- */
.catalog { display: grid; grid-template-columns: var(--rail-w) minmax(0, 1fr); gap: clamp(2rem, 4vw, 4rem); padding-block: clamp(2rem, 4vw, 3.25rem) 4rem; align-items: start; }

.rail { position: sticky; top: 1.25rem; background: var(--rail); color: var(--rail-ink); border-radius: 14px; padding: 1.1rem .7rem 1rem; box-shadow: 0 18px 40px -26px rgba(0, 0, 0, .5); }
.rail ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.rail a {
  display: flex; align-items: baseline; justify-content: space-between; gap: .75rem;
  padding: .62rem .75rem; border-radius: 8px; text-decoration: none; color: var(--rail-ink);
  font: 500 .9688rem/1.25 var(--sans);
  transition: background-color .25s var(--ease), color .25s var(--ease);
}
.rail a:hover { background: rgba(255, 255, 255, .08); }
.rail a[aria-current="true"] { background: var(--rail-active); color: var(--rail-active-ink); font-weight: 600; }
.rail a[aria-current="true"] .rail__count { color: var(--red); }
.rail__count { font: 600 .8125rem/1 var(--sans); font-variant-numeric: tabular-nums; color: var(--rail-mute); }
.rail a.is-empty { opacity: .45; }
.rail__cta { margin-top: 1rem; padding: 1rem .75rem .2rem; border-top: 1px solid rgba(255, 255, 255, .14); display: grid; gap: .75rem; }
.rail__cta p { font-size: .875rem; line-height: 1.45; color: var(--rail-mute); }
.rail__cta .btn { width: 100%; }
.rail .btn--primary, .rail .btn--primary:hover { color: #fff; }

/* ---------- Ledger ---------- */
.ledger { min-width: 0; }
.results { min-height: 1.5rem; margin: 0 0 1.25rem; font-size: .9375rem; color: var(--ink-mute); }
.results strong { color: var(--ink); }

.dept { padding-bottom: clamp(2.5rem, 5vw, 3.5rem); }
.dept + .dept { padding-top: clamp(1.5rem, 3vw, 2rem); border-top: 1px solid var(--rule-strong); }
.dept__head { display: grid; gap: .6rem; margin-bottom: 1.25rem; }
.dept__head h2 { font-size: clamp(2rem, 4vw, 2.75rem); }
.dept__head h2 small { font: italic 500 1.25rem/1 var(--serif); color: var(--ink-mute); margin-left: .5rem; letter-spacing: 0; }
.dept__head p { max-width: var(--measure); color: var(--ink-soft); }
.dept__head p a { color: var(--ink); }
.dept[hidden] { display: none; }

.rows { border-top: 1px solid var(--rule); }
.course { border-bottom: 1px solid var(--rule); }
.course[hidden] { display: none; }
.course summary {
  list-style: none; cursor: pointer;
  display: grid; grid-template-columns: minmax(0, 1fr) auto auto; gap: .35rem 1.5rem; align-items: center;
  padding: 1.15rem .25rem 1.15rem 0;
  border-radius: 6px;
}
.course summary::-webkit-details-marker { display: none; }
.course summary:hover .course__name { text-decoration: underline; text-decoration-color: var(--red); text-decoration-thickness: 1px; text-underline-offset: .18em; }
.course__name { grid-column: 1; font: 600 clamp(1.375rem, 2.4vw, 1.625rem)/1.15 var(--serif); }
.course__line { grid-column: 1; grid-row: 2; color: var(--ink-soft); font-size: .9688rem; line-height: 1.5; max-width: 62ch; }
.course__format { grid-column: 2; grid-row: 1 / span 2; font-size: .8125rem; color: var(--ink-mute); text-align: right; white-space: nowrap; }
.chev { grid-column: 3; grid-row: 1 / span 2; width: 2.25rem; height: 2.25rem; border-radius: 50%; display: grid; place-items: center; color: var(--ink-mute); transition: transform .45s var(--ease), background-color .2s var(--ease), color .2s; }
.chev svg { width: 1.1rem; height: 1.1rem; }
.course summary:hover .chev { background: var(--parchment); color: var(--ink); }
@media (prefers-color-scheme: dark) { .course summary:hover .chev { background: var(--rule); } }
.course[open] .chev { transform: rotate(180deg); color: var(--ink); }

.status { display: inline-flex; align-items: center; gap: .4rem; font: 600 .75rem/1 var(--sans); letter-spacing: .06em; text-transform: uppercase; white-space: nowrap; }
.status::before { content: ""; width: .6rem; height: .6rem; border-radius: 50%; flex: none; }
.status--offered { color: var(--status-offered); }
.status--offered::before { background: currentColor; }
.status--inquire { color: var(--status-inquire); }
.status--inquire::before { background: linear-gradient(90deg, currentColor 50%, transparent 50%); box-shadow: inset 0 0 0 1.5px currentColor; }
.status--dev { color: var(--status-dev); }
.status--dev::before { box-shadow: inset 0 0 0 1.5px currentColor; }
.course__format .status { display: flex; justify-content: flex-end; margin-bottom: .4rem; }

/* Expanding body: measured height transition where the browser supports it */
.course::details-content { block-size: 0; overflow: clip; transition: block-size .5s var(--ease), content-visibility .5s allow-discrete; }
.course[open]::details-content { block-size: auto; }
@supports (interpolate-size: allow-keywords) { :root { interpolate-size: allow-keywords; } }
@media (prefers-reduced-motion: reduce) { .course::details-content { transition: none; } .chev { transition: none; } }

.course__body { padding: .25rem 0 1.75rem; display: grid; grid-template-columns: minmax(0, 1fr) minmax(13rem, 17rem); gap: 1.25rem 2.5rem; }
.course__text { display: grid; gap: .9rem; max-width: var(--measure); color: var(--ink-soft); }
.course__text h3 { font: 600 1.1875rem/1.2 var(--serif); color: var(--ink); margin-top: .5rem; }
.course__text ul, .course__text ol { margin: 0; padding-left: 1.15rem; display: grid; gap: .3rem; }
.course__text ol { columns: 2 16rem; column-gap: 3rem; display: block; padding-left: 1.6rem; }
.course__text ol li { margin-bottom: .3rem; break-inside: avoid; }
.course__text strong { color: var(--ink); }
.facts { align-self: start; padding: .15rem 0 .15rem 1.5rem; border-left: 1px solid var(--rule-strong); display: grid; gap: .8rem; font-size: .875rem; }
.facts dl { margin: 0; display: grid; gap: .8rem; }
.facts dl div { display: grid; gap: .15rem; }
.facts dt { font: 600 .6875rem/1.2 var(--sans); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-mute); }
.facts dd { margin: 0; color: var(--ink); }
.facts .btn { margin-top: .25rem; width: 100%; justify-self: stretch; }
.facts > * { min-width: 0; }
.facts__alt { font-size: .8125rem; text-align: center; color: var(--ink-mute); }
mark { background: var(--hl); color: inherit; border-radius: 2px; padding: 0 .08em; }

/* Planned courses: a two-column sequence, deliberately quieter */
.plan { display: grid; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); gap: 1.5rem 2.5rem; margin-top: .5rem; }
.plan h3 { font: 600 1.375rem/1.2 var(--serif); padding-bottom: .6rem; border-bottom: 1px solid var(--rule-strong); }
.plan ul { list-style: none; margin: 0; padding: 0; }
.plan li { padding: .7rem 0; border-bottom: 1px solid var(--rule); font: 500 1.0625rem/1.3 var(--serif); font-size: 1.1875rem; display: flex; justify-content: space-between; gap: 1rem; align-items: baseline; }
.plan li[hidden] { display: none; }
.plan li .status { font-size: .6875rem; }

.empty { padding: 2.5rem 0; display: grid; gap: .9rem; justify-items: start; }
.empty[hidden] { display: none; }
.empty h2 { font-size: 1.875rem; }
.empty p { color: var(--ink-soft); max-width: 52ch; }
.empty div { display: flex; flex-wrap: wrap; gap: .75rem; }
.empty .btn--quiet { color: var(--ink); }

.notice { margin-top: 1.25rem; font-size: .8125rem; line-height: 1.55; color: var(--ink-mute); max-width: var(--measure); }

/* ---------- Closing band + footer ---------- */
.close { background: var(--navy); color: var(--rail-ink); }
@media (prefers-color-scheme: dark) { .close { background: var(--rail); } }
.close .wrap { padding-block: clamp(3rem, 7vw, 5rem) clamp(2.5rem, 5vw, 3.5rem); display: grid; grid-template-columns: minmax(0, 1.4fr) auto; gap: 2rem; align-items: end; }
.close h2 { font-size: clamp(2.2rem, 5vw, 3.5rem); color: #fff; }
@media (prefers-color-scheme: dark) { .close h2 { color: var(--rail-ink); } }
.close p { margin-top: .9rem; max-width: 48ch; color: var(--rail-mute); font-size: 1.0625rem; }
.close__actions { display: flex; flex-wrap: wrap; gap: .75rem; }
/* Footer: mirrors stevensed.org's site footer (navy in both modes, four columns, legal bar) */
.site-foot { background: var(--navy); color: rgba(247, 245, 241, .82); padding: clamp(3rem, 6vw, 4rem) 0 1.5rem; border-top: 1px solid rgba(255, 255, 255, .1); }
@media (prefers-color-scheme: dark) { .site-foot { background: var(--rail); } }
.site-foot a { color: rgba(247, 245, 241, .82); text-decoration-color: transparent; }
.site-foot a:hover { color: #f0a7a9; text-decoration-color: #f0a7a9; }
.site-foot :focus-visible { outline-color: var(--cream); }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 3rem; margin-bottom: 3rem; }
.foot-brand .mark { color: var(--cream); }
.foot-brand .mark__name { color: var(--cream); }
.foot-brand .mark__sub { color: rgba(247, 245, 241, .78); }
.foot-brand p { margin-top: .9rem; max-width: 34ch; font-size: .9375rem; line-height: 1.55; color: rgba(255, 255, 255, .7); }
.social { display: flex; gap: .5rem; margin-top: 1.1rem; }
.social a { width: 2.5rem; height: 2.5rem; border-radius: 50%; display: grid; place-items: center; border: 1px solid rgba(255, 255, 255, .22); }
.social a:hover { border-color: #f0a7a9; }
.social svg { width: 1.15rem; height: 1.15rem; }
.foot-heading { font: 600 .875rem/1.2 var(--sans); letter-spacing: .16em; text-transform: uppercase; color: #f0a7a9; margin: 0 0 1rem; }
.foot-grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .5rem; }
.foot-grid li a { font-size: .875rem; }
.foot-area { margin: 0 0 .75rem; font-size: .875rem; line-height: 1.55; color: rgba(255, 255, 255, .75); }
.site-foot address { font-style: normal; font-size: .875rem; line-height: 1.8; color: rgba(255, 255, 255, .75); }
.site-foot address a { color: rgba(247, 245, 241, .9); }
.site-foot .btn--primary { margin-top: 1.25rem; color: #fff; }
.site-foot .btn--primary:hover { color: #fff; text-decoration: none; }
.foot-bottom { border-top: 1px solid rgba(255, 255, 255, .1); padding-top: 1.5rem; display: grid; grid-template-columns: 1fr auto; gap: .75rem 2rem; align-items: baseline; font-size: .78rem; letter-spacing: .03em; line-height: 1.6; color: rgba(255, 255, 255, .78); }
.foot-bottom p { max-width: 70ch; }
.foot-legal { display: flex; flex-wrap: wrap; gap: .5rem 1.25rem; list-style: none; margin: 0; padding: 0; justify-content: flex-end; }
.foot-legal a { font-size: .78rem; }

/* Grading weights: a small aligned table instead of a run-on line */
.weights { list-style: none; margin: .2rem 0 0; padding: 0; display: grid; gap: .3rem; }
.weights li { display: flex; justify-content: space-between; gap: 1rem; }
.weights li span:last-child { font-variant-numeric: tabular-nums; font-weight: 600; }

/* ---------- Reading pages (enrollment) ---------- */
.reading { padding-block: clamp(2.5rem, 5vw, 4rem); display: grid; grid-template-columns: minmax(0, var(--measure)) minmax(14rem, 18rem); gap: 3rem 4rem; align-items: start; }
.reading article { display: grid; gap: 1.1rem; color: var(--ink-soft); font-size: 1.0625rem; }
.reading article h2 { font-size: clamp(1.9rem, 3.5vw, 2.4rem); color: var(--ink); margin-top: 1.75rem; }
.reading article h2:first-child { margin-top: 0; }
.reading article strong { color: var(--ink); }
.reading ul { margin: 0; padding-left: 1.2rem; display: grid; gap: .55rem; }
.steps { list-style: none; margin: 0; padding: 0; counter-reset: step; display: grid; }
.steps li { counter-increment: step; display: grid; grid-template-columns: 3rem minmax(0, 1fr); gap: 1rem; padding: 1.15rem 0; border-bottom: 1px solid var(--rule); }
.steps li:first-child { border-top: 1px solid var(--rule); }
.steps li::before { content: counter(step); font: 600 2rem/1 var(--serif); color: var(--ink-mute); font-variant-numeric: lining-nums; }
.steps strong { display: block; font: 600 1.375rem/1.2 var(--serif); margin-bottom: .3rem; }
.aside { position: sticky; top: 1.25rem; }
.links { list-style: none; margin: 0; padding: 0; display: grid; }
.links li { padding: .7rem 0; border-bottom: 1px solid var(--rule); }
.links li:first-child { padding-top: 0; }
.links a { font-weight: 600; color: var(--ink); }
.links span { display: block; color: var(--ink-mute); font-size: .8125rem; }

/* ---------- Mobile ---------- */
@media (max-width: 960px) {
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .foot-bottom { grid-template-columns: 1fr; }
  .foot-legal { justify-content: flex-start; }
  .masthead__title { grid-template-columns: minmax(0, 1fr); }
  .glance { display: none; }
  .catalog { grid-template-columns: minmax(0, 1fr); gap: 0; padding-top: 0; }
  .rail { position: sticky; top: 0; z-index: 20; border-radius: 0; margin-inline: calc(50% - 50vw); padding: .55rem 1.25rem; box-shadow: 0 8px 18px -14px rgba(0, 0, 0, .6); }
  .rail__cta { display: none; }
  .rail ol { display: flex; gap: .35rem; overflow-x: auto; scrollbar-width: none; scroll-snap-type: x proximity; padding-right: 2.5rem; -webkit-mask-image: linear-gradient(90deg, #000 calc(100% - 3rem), transparent); mask-image: linear-gradient(90deg, #000 calc(100% - 3rem), transparent); }
  .rail ol::-webkit-scrollbar { display: none; }
  .rail li { flex: none; scroll-snap-align: start; }
  .rail a { padding: .55rem .85rem; border-radius: 999px; white-space: nowrap; gap: .45rem; font-size: .9063rem; }
  .rail li:has(a.is-empty) { display: none; }
  html { scroll-padding-top: 4.25rem; }
  .ledger { padding-top: 1.5rem; }
  .reading { grid-template-columns: minmax(0, 1fr); }
  .aside { position: static; }
}
@media (max-width: 720px) {
  .foot-grid { grid-template-columns: 1fr; gap: 2rem; }
  .toplinks a:not(.btn) { display: none; }
  .finder { grid-template-columns: minmax(0, 1fr); }
  .status-filter { overflow-x: auto; scrollbar-width: none; -webkit-mask-image: linear-gradient(90deg, #000 calc(100% - 2rem), transparent); mask-image: linear-gradient(90deg, #000 calc(100% - 2rem), transparent); padding-right: 2rem; }
  .status-filter::-webkit-scrollbar { display: none; }
  .status-filter { border-color: transparent; background: rgba(255, 255, 255, .08); }
  .rail ol.is-done, .status-filter.is-done { -webkit-mask-image: none; mask-image: none; }
  .status-filter button { flex: none; min-height: 2.2rem; }
  .masthead__bar { padding-block: .75rem; }
  .masthead__title { padding-block: 1.4rem 1rem; gap: .5rem; }
  .masthead__title h1 { font-size: 2.25rem; }
  .masthead__lead { font-size: .9688rem; }
  .masthead__lead .lead-long { display: none; }
  .finder { gap: .6rem; padding-bottom: 1rem; }
  .search input { min-height: 2.9rem; }
  .facts { border-left: 0; border-top: 1px solid var(--rule-strong); padding: 1rem 0 0; }
  .course summary { grid-template-columns: minmax(0, 1fr) auto; }
  .course__format { grid-column: 1; grid-row: 3; text-align: left; display: flex; flex-wrap: wrap; gap: .25rem .75rem; align-items: center; }
  .course__format .status { margin: 0; }
  .chev { grid-column: 2; grid-row: 1 / span 3; }
  .course__body { grid-template-columns: minmax(0, 1fr); }
  .close .wrap { grid-template-columns: minmax(0, 1fr); align-items: start; }
  .masthead .btn--primary .long { display: none; }
  .masthead .btn--primary .short { display: inline; }
}

@media print {
  .masthead__bar .toplinks, .finder, .rail, .close, .chev { display: none !important; }
  .catalog { grid-template-columns: 1fr; }
  .course::details-content { block-size: auto !important; content-visibility: visible !important; }
  .masthead { background: none; color: #000; }
}