/* Hub catalog + long-form document pages.
   Same three-surface system as the course guides: grey desk, white sheet
   cards, graph-paper grid on the hero, blue-ink accents. */

:root{
  --desk:#eceef1;--sheet:#ffffff;--well:#f4f5f7;
  --ink:#1f2329;--muted:#525a67;
  --line:#d8dbe1;--line-soft:#e7e9ed;--grid:rgba(42,92,174,.09);
  --blue:#2a5cae;--indigo:#46409f;--green:#2e7d4f;--red:#c03b2d;
  --tint-blue:#eaf1fa;
  --req:#2a5cae;--req-tint:#e8f0fb;--opt:#8a5a12;--opt-tint:#fbf2e0;
  --done:#2e7d4f;--done-tint:#e7f3ec;
  --shadow-card:0 1px 3px rgba(15,23,42,.07);
  --shadow-lift:0 1px 2px rgba(15,23,42,.05),0 12px 32px rgba(15,23,42,.10);
}
[data-theme="dark"]{
  --desk:#0f1115;--sheet:#191d24;--well:#13161c;
  --ink:#e8eaee;--muted:#a5acba;
  --line:#353b46;--line-soft:#272c35;--grid:rgba(125,167,232,.08);
  --blue:#7da7e8;--indigo:#a3a0e6;--green:#6cbd8e;--red:#e08272;
  --tint-blue:#1c2531;
  --req:#7da7e8;--req-tint:#1b2430;--opt:#d9ab5c;--opt-tint:#2b2419;
  --done:#6cbd8e;--done-tint:#16241d;
  --shadow-card:0 1px 3px rgba(0,0,0,.4);
  --shadow-lift:0 1px 2px rgba(0,0,0,.4),0 14px 36px rgba(0,0,0,.5);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scrollbar-gutter:stable both-edges}
body{margin:0;color:var(--ink);background:var(--desk);
  font-family:Charter,"Iowan Old Style","Palatino Linotype",Georgia,serif;
  font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit}
button,input{font:inherit}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px}
::selection{background:rgba(42,92,174,.18)}

.theme-toggle{position:fixed;right:14px;top:14px;z-index:50;
  padding:.45rem .8rem;border:1px solid var(--line);border-radius:999px;
  color:var(--ink);background:var(--sheet);box-shadow:var(--shadow-card);
  font-family:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.66rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;cursor:pointer}
.theme-toggle:hover{border-color:var(--blue);color:var(--blue)}

.catalog-shell{width:min(1080px,calc(100% - 3rem));margin:0 auto}

/* ---------- hero on graph paper ---------- */
.hero{position:relative;padding:clamp(2.5rem,6vw,4rem) 0 clamp(2rem,4vw,3rem);
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(180deg,rgba(0,0,0,0) 0%,var(--desk) 92%),
    linear-gradient(var(--grid) 1px,transparent 1px),
    linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:auto,24px 24px,24px 24px}
.hero::after{position:absolute;right:2%;bottom:-1px;width:min(28rem,42vw);height:5px;
  background:var(--blue);content:""}

.kicker,.section-number,.course-code,.subject-tag,.reference-grid span,footer{
  font-family:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  font-weight:700;letter-spacing:.12em;text-transform:uppercase}
.kicker{margin-bottom:.9rem;color:var(--blue);font-size:.72rem}

h1,h2,h3,p{margin-top:0}
h1{max-width:1040px;margin-bottom:1.1rem;
  font-family:"Avenir Next","Helvetica Neue","Segoe UI",system-ui,sans-serif;
  font-size:clamp(2.3rem,5vw,4rem);font-weight:650;letter-spacing:-.02em;line-height:1.02}
h1 em{color:var(--blue);font-style:italic}
.lede{max-width:70ch;margin-bottom:1.6rem;color:var(--muted);
  font-size:clamp(1rem,1.6vw,1.1rem)}

.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));max-width:920px;
  border:1px solid var(--line);border-radius:8px;background:var(--sheet);
  box-shadow:var(--shadow-card);overflow:hidden}
.stats div{padding:.85rem 1rem}
.stats div+div{border-left:1px solid var(--line-soft)}
.stats strong,.stats span{display:block}
.stats strong{color:var(--blue);font-size:1.3rem;
  font-family:"Avenir Next","Helvetica Neue","Segoe UI",system-ui,sans-serif;font-weight:650}
.stats span{color:var(--muted);font-size:.8rem}

.catalog-section,.reference-section,.add-section,.program-section{
  padding:clamp(1.5rem,3vw,2.3rem) 0;border-bottom:1px solid var(--line)}
.section-heading{display:flex;align-items:end;justify-content:space-between;
  gap:2rem;margin-bottom:1.4rem}
.section-heading>div{display:flex;align-items:baseline;gap:1rem}
.section-number{color:var(--blue);font-size:.72rem}
h2{margin-bottom:0;font-family:"Avenir Next","Helvetica Neue","Segoe UI",system-ui,sans-serif;
  font-size:clamp(1.5rem,3vw,2.1rem);font-weight:650;letter-spacing:-.015em;line-height:1.05}
#result-count{margin-bottom:0;color:var(--muted);font-size:.9rem}

.catalog-tools{display:grid;grid-template-columns:minmax(14rem,18rem) 1fr;align-items:start;
  gap:.5rem 1.2rem;margin-bottom:1.3rem}
.catalog-tools label{grid-column:1/-1;color:var(--blue);font-size:.78rem;font-weight:700;
  letter-spacing:.08em;text-transform:uppercase;
  font-family:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace}
#course-search{width:100%;align-self:start;height:2.6rem;padding:.55rem .85rem;
  border:1px solid var(--line);border-radius:6px;color:var(--ink);
  background:var(--sheet);box-shadow:var(--shadow-card)}
#course-search:focus{border-color:var(--blue)}
.filters{display:flex;flex-wrap:wrap;gap:.5rem}
.filters button{min-height:2.6rem;padding:.5rem .85rem;border:1px solid var(--line);
  border-radius:6px;color:var(--muted);background:var(--sheet);cursor:pointer}
.filters button:hover,.filters button[aria-pressed="true"]{
  border-color:var(--blue);color:var(--sheet);background:var(--blue)}
[data-theme="dark"] .filters button:hover,
[data-theme="dark"] .filters button[aria-pressed="true"]{color:var(--desk)}

/* ---------- 00 structure tree ---------- */
.structure-section{padding:clamp(1.5rem,3vw,2.3rem) 0;border-bottom:1px solid var(--line)}
.structure-tree{padding:1rem 1.2rem;margin-bottom:1.1rem;border:1px solid var(--line);
  border-radius:8px;background:var(--sheet);box-shadow:var(--shadow-card);overflow-x:auto}
.tree-list{margin:0;padding:0;list-style:none}
.tree-list .tree-list{margin-left:.55rem;padding-left:1.1rem;
  border-left:1px solid var(--line-soft)}
.tree-node{position:relative}
.tree-row{display:flex;flex-wrap:wrap;align-items:baseline;gap:.5rem;
  padding:.24rem .4rem;border-radius:4px}
.tree-list .tree-list .tree-row::before{position:absolute;left:-1.1rem;
  width:.75rem;height:1px;margin-top:.72rem;background:var(--line-soft);content:""}
.tree-name{font-size:.92rem;font-weight:600}
.tree-tag{padding:.05rem .38rem;border:1px solid var(--line-soft);border-radius:4px;
  color:var(--muted);background:var(--well);
  font-family:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.58rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase;
  white-space:nowrap}
.tree-note{color:var(--muted);font-size:.82rem}
/* the branch the offer actually lands on */
.tree-node.on-path>.tree-row{background:var(--req-tint);
  box-shadow:inset 3px 0 0 var(--req)}
.tree-node.on-path>.tree-row .tree-name{color:var(--req);font-weight:700}
.tree-node.on-path>.tree-row .tree-tag{border-color:var(--req);color:var(--req)}
.structure-foot{margin-bottom:0}

/* ---------- 01 program index ---------- */
.section-note{margin-bottom:0;color:var(--muted);font-size:.9rem}
.program-lede{max-width:74ch;margin-bottom:1.3rem;color:var(--muted);font-size:.95rem}
.program-lede a{color:var(--blue)}

.program-table-wrap{overflow-x:auto}
.program-table{width:100%;min-width:46rem;border-collapse:separate;border-spacing:0;
  border:1px solid var(--line);border-radius:8px;background:var(--sheet);
  box-shadow:var(--shadow-card);overflow:hidden}
.program-table th,.program-table td{padding:.5rem .8rem;text-align:left;
  vertical-align:top;border-bottom:1px solid var(--line-soft)}
.program-table tbody tr:last-child td{border-bottom:0}
.program-table thead th{background:var(--well);color:var(--muted);
  font:700 .64rem/1.4 ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  letter-spacing:.1em;text-transform:uppercase;white-space:nowrap}
.program-code-cell{width:7rem}
.program-code{color:var(--blue);text-decoration:none;
  font-family:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.7rem;font-weight:700;letter-spacing:.06em}
.program-code:hover{text-decoration:underline}
.program-table td b{display:block;font-size:.95rem;font-weight:650}
.program-summary{display:block;max-width:56ch;margin-top:.1rem;color:var(--muted);
  font-size:.85rem;line-height:1.45}
.program-kind{width:6.5rem;color:var(--muted);font-size:.82rem;white-space:nowrap}
.program-entry{width:5.5rem}
.entry-open,.entry-limited{padding:.08rem .42rem;border-radius:4px;white-space:nowrap;
  font-family:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.6rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase}
.entry-open{color:var(--done);background:var(--done-tint)}
.entry-limited{color:var(--opt);background:var(--opt-tint)}
.program-credits{width:5.5rem;text-align:right;color:var(--muted);white-space:nowrap;
  font-family:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.76rem;font-weight:700;font-variant-numeric:tabular-nums}
.program-table tr.is-focus td{background:var(--req-tint)}
.program-table tr.is-focus .program-code,
.program-table tr.is-focus .program-credits{color:var(--req)}

/* ---------- 02 the one program, expanded ---------- */
.focus-section{padding:clamp(1.5rem,3vw,2.3rem) 0;border-bottom:1px solid var(--line)}
.focus-panel{padding:1.3rem 1.4rem;border:1px solid var(--line);
  border-left:3px solid var(--req);border-radius:8px;background:var(--sheet);
  box-shadow:var(--shadow-card)}
.focus-kind{color:var(--req);
  font-family:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.66rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase}
.focus-panel h3{margin:.3rem 0 .45rem;
  font-family:"Avenir Next","Helvetica Neue","Segoe UI",system-ui,sans-serif;
  font-size:1.4rem;font-weight:650;line-height:1.15}
.focus-summary{margin-bottom:1.1rem;max-width:72ch;color:var(--muted);font-size:.95rem}
.focus-meta{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  margin-bottom:1.2rem;border:1px solid var(--line-soft);border-radius:6px;
  background:var(--well);overflow:hidden}
.focus-meta div{padding:.6rem .85rem}
.focus-meta div+div{border-left:1px solid var(--line-soft)}
.focus-meta strong{display:block;color:var(--req);font-size:1.1rem;line-height:1.3;
  font-family:"Avenir Next","Helvetica Neue","Segoe UI",system-ui,sans-serif;font-weight:650}
.focus-meta span{display:block;color:var(--muted);font-size:.76rem}
.focus-about h4,.focus-outside h4{margin:0 0 .4rem;color:var(--muted);
  font-family:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.64rem;font-weight:700;letter-spacing:.11em;text-transform:uppercase}
.focus-about p{margin:0 0 .8rem;max-width:74ch;font-size:.95rem}
.focus-link{display:inline-block;margin-bottom:1.4rem;color:var(--req);
  font-family:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  text-decoration:none}
.focus-link:hover{text-decoration:underline}

.focus-plan{display:grid;gap:.7rem;margin-bottom:1.3rem}
.focus-year{border:1px solid var(--line-soft);border-radius:8px;overflow:hidden}
.focus-year.is-done{border-color:var(--done)}
.focus-year-head{display:flex;align-items:baseline;gap:.7rem;padding:.5rem .8rem;
  background:var(--well);border-bottom:1px solid var(--line-soft)}
.focus-year.is-done .focus-year-head{background:var(--done-tint)}
.focus-year-head h4{margin:0;
  font-family:"Avenir Next","Helvetica Neue","Segoe UI",system-ui,sans-serif;
  font-size:1.02rem;font-weight:650}
.focus-year-tag{padding:.1rem .45rem;border-radius:999px;color:var(--sheet);
  background:var(--done);
  font-family:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.58rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase}
[data-theme="dark"] .focus-year-tag{color:var(--desk)}
.focus-year-tag.is-plan{background:var(--opt)}
.focus-credits{margin-left:auto;color:var(--muted);white-space:nowrap;
  font-family:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.7rem;font-weight:700;letter-spacing:.05em;font-variant-numeric:tabular-nums}
.focus-year-body{display:grid;grid-template-columns:repeat(auto-fit,minmax(20rem,1fr));
  gap:1rem;padding:.7rem .8rem}
.focus-term-head{display:flex;align-items:baseline;gap:.5rem;margin-bottom:.35rem}
.focus-term-head b{font-family:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.64rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}
.focus-term-span{color:var(--muted);font-size:.72rem;font-style:italic}

/* one course per line: code, title, guide link, credit */
.plan-course{display:grid;grid-template-columns:5.6rem 1fr auto 2rem;align-items:baseline;
  gap:.5rem;padding:.22rem .45rem;border-left:3px solid transparent;border-radius:4px}
.plan-course+.plan-course{margin-top:.15rem}
.plan-code{text-decoration:none;
  font-family:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.67rem;font-weight:700;letter-spacing:.04em}
.plan-code:hover{text-decoration:underline}
.plan-course>span{font-size:.86rem;min-width:0}
.plan-guide{color:var(--blue);text-decoration:none;white-space:nowrap;
  font-family:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.6rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase}
.plan-guide:hover{text-decoration:underline}
.plan-course i{color:var(--muted);font-style:normal;text-align:right;
  font-family:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.7rem;font-weight:700;font-variant-numeric:tabular-nums}
.plan-course.req{border-left-color:var(--req);background:var(--req-tint)}
.plan-course.req .plan-code{color:var(--req)}
.plan-course.pick{border-left-color:var(--opt);background:var(--opt-tint)}
.plan-course.pick .plan-code{color:var(--opt)}
.plan-course.is-taken{border-left-color:var(--done);background:var(--done-tint)}
.plan-course.is-taken .plan-code,.plan-course.is-taken i{color:var(--done)}
.plan-course.is-taken i::before{content:"\2713 ";font-weight:700}
.plan-course.is-outside{grid-template-columns:1fr 2rem;color:var(--muted)}
/* second half of a full-year course: shown, but its credit already counted */
.plan-course.is-continued{opacity:.72}
.plan-course.is-continued i::before{content:""}
/* term notes sit next to the title: "full year", "either term", "not offered" */
.plan-title em{margin-left:.4rem;color:var(--muted);font-style:normal;
  font-family:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.58rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase}
.plan-course.is-unoffered{opacity:.6}
.plan-course.is-unoffered .plan-code{text-decoration:line-through}
.plan-course.is-unoffered .plan-title em{color:var(--red)}
.focus-term-empty{padding:.35rem .4rem;color:var(--muted);font-size:.8rem;font-style:italic}
/* courses the timetable leaves unpinned, shown once rather than in both terms */
.focus-flex{padding:.6rem .8rem;border-top:1px dashed var(--line)}
.focus-note{max-width:74ch;margin:1rem 0 0;padding:.8rem .95rem;
  border:1px solid var(--line-soft);border-left:3px solid var(--opt);
  border-radius:6px;color:var(--muted);background:var(--well);font-size:.88rem}
.focus-note b{color:var(--ink)}
.focus-flex-head{margin-bottom:.35rem;color:var(--muted);
  font-family:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.6rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase}
.plan-course em{margin-left:.45rem;color:var(--muted);font-style:normal;
  font-family:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.58rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase}
.focus-outside ul{margin:0;padding-left:1.2rem;color:var(--muted);font-size:.9rem}
.focus-outside li{margin:.25rem 0;max-width:74ch}

/* ---------- 03 every course, alphabetical ---------- */
.course-results{display:grid}
.course-list{border:1px solid var(--line);border-radius:8px;background:var(--sheet);
  box-shadow:var(--shadow-card);overflow:hidden}
.course-row{display:grid;align-items:baseline;column-gap:1rem;padding:.4rem .8rem;
  grid-template-columns:5.6rem minmax(10rem,1fr) minmax(8rem,12rem) 2.4rem 6.5rem;
  border-bottom:1px solid var(--line-soft)}
.course-row:last-child{border-bottom:0}
.course-row:hover{background:var(--well)}
.course-code{color:var(--blue);text-decoration:none;font-size:.7rem}
.course-code:hover{text-decoration:underline}
.row-title{min-width:0;font-weight:600;font-size:.9rem;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.row-title.is-blank{color:var(--muted);font-weight:400;font-style:italic}
.subject-tag{justify-self:start;max-width:100%;padding:.1rem .4rem;color:var(--green);
  font-size:.66rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  border:1px solid var(--line-soft);border-radius:4px;background:var(--well)}
.row-credits{text-align:right;color:var(--muted);
  font-family:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.7rem;font-weight:700;font-variant-numeric:tabular-nums}
.row-guide{justify-self:start;color:var(--blue);text-decoration:none;white-space:nowrap;
  font-family:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.63rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase}
.row-guide:hover{text-decoration:underline}
.empty-state{padding:3rem;border:1px dashed var(--line);border-radius:8px;
  color:var(--muted);background:var(--well);text-align:center}
.noscript-list{display:grid;gap:.6rem;padding:1.5rem;border:1px solid var(--line);
  border-radius:8px;background:var(--sheet)}
.noscript-list p{margin-bottom:.4rem}

.reference-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}
.reference-grid a{display:block;padding:1.1rem 1.2rem;border:1px solid var(--line);
  border-left:3px solid var(--indigo);border-radius:8px;color:inherit;
  background:var(--sheet);box-shadow:var(--shadow-card);text-decoration:none;
  transition:border-color 160ms ease,box-shadow 160ms ease}
.reference-grid a:hover{border-color:var(--indigo);box-shadow:var(--shadow-lift)}
.reference-grid span{color:var(--indigo);font-size:.66rem}
.reference-grid strong{display:block;margin:.25rem 0;font-size:1.15rem;
  font-family:"Avenir Next","Helvetica Neue","Segoe UI",system-ui,sans-serif;font-weight:600}
.reference-grid p{margin-bottom:0;color:var(--muted)}

.add-section{max-width:1000px}
.add-section h2{margin:.4rem 0 .7rem}
.add-section p{color:var(--muted);font-size:1rem;max-width:74ch}

code{padding:.15rem .35rem;color:var(--blue);background:var(--well);
  border:1px solid var(--line-soft);border-radius:4px;
  font-family:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;font-size:.9em}

footer{display:flex;justify-content:space-between;gap:1rem;padding:1.3rem 0 2rem;
  color:var(--muted);font-size:.64rem}

/* ---------- long-form document pages (guide, changes) ---------- */
.doc-head{padding:clamp(3rem,8vw,5.5rem) 0 2rem;
  background:
    linear-gradient(180deg,rgba(0,0,0,0) 0%,var(--desk) 92%),
    linear-gradient(var(--grid) 1px,transparent 1px),
    linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:auto,24px 24px,24px 24px}
.doc-head .back{display:inline-block;margin-bottom:1.2rem;color:var(--blue);
  font-family:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  text-decoration:none}
.doc-head .back:hover{text-decoration:underline}
.doc-head h1{margin-bottom:.8rem;font-size:clamp(2rem,4.6vw,3.3rem);
  letter-spacing:-.02em;line-height:1.05}
.doc-head .lede{margin-bottom:0}

.doc{max-width:820px;margin:0 0 4rem;padding:2.2rem 2.6rem 2.8rem;
  background:var(--sheet);border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--shadow-lift)}
.doc h2{margin:2.6rem 0 1rem;font-size:clamp(1.4rem,3vw,1.9rem);letter-spacing:-.015em}
.doc h2:first-child{margin-top:0}
.doc h3{margin:1.8rem 0 .5rem;
  font-family:"Avenir Next","Helvetica Neue","Segoe UI",system-ui,sans-serif;
  font-size:1.15rem;font-weight:650}
.doc p{margin:0 0 1rem;max-width:72ch}
.doc ul,.doc ol{margin:0 0 1.1rem 0;padding-left:1.4rem}
.doc li{margin:.35rem 0;max-width:70ch}
.doc a{color:var(--blue);text-decoration:underline;text-underline-offset:2px;
  word-break:break-word}
.doc table{width:100%;margin:1.3rem 0;border-collapse:collapse;font-size:.93rem}
.doc th,.doc td{padding:.55rem .7rem;border:1px solid var(--line);text-align:left;
  vertical-align:top}
.doc thead th{background:var(--well);
  font-family:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.76rem;letter-spacing:.04em}
.doc hr{margin:2.6rem 0;border:0;border-top:1px solid var(--line)}

@media (max-width:760px){
  .doc{overflow-x:hidden;padding:1.4rem 1.1rem 1.8rem;border-radius:8px}
  .doc table{display:block;overflow-x:auto;white-space:nowrap}
  .catalog-shell{width:calc(100% - 1.2rem)}
  .hero{padding-top:4rem}
  .stats,.reference-grid{grid-template-columns:1fr}
  .stats div+div{border-top:1px solid var(--line-soft);border-left:0}
  .section-heading,footer{align-items:start;flex-direction:column}
  .catalog-tools{grid-template-columns:1fr}
  .filters{width:100%}
  .filters button{min-height:2.8rem;flex:1}
  .course-row{grid-template-columns:max-content 1fr max-content;row-gap:.15rem;
    grid-template-areas:"code tag credits" "title title title" "guide guide guide"}
  .course-code{grid-area:code}
  .subject-tag{grid-area:tag}
  .row-credits{grid-area:credits}
  .row-title{grid-area:title;white-space:normal}
  .row-guide{grid-area:guide}
  .row-guide.is-empty{display:none}
  .focus-panel{padding:1rem .9rem}
  .focus-meta{grid-template-columns:1fr}
  .focus-meta div+div{border-top:1px solid var(--line-soft);border-left:0}
  .focus-year-head{flex-wrap:wrap;gap:.4rem}
  .focus-credits{margin-left:0;width:100%}
  .focus-year-body{grid-template-columns:1fr}
  .plan-course{grid-template-columns:5.2rem 1fr 1.8rem;gap:.35rem}
  .plan-guide{display:none}
  .tree-row{gap:.3rem}
  .tree-note{width:100%;font-size:.78rem}
  .structure-tree{padding:.8rem .7rem}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
}