/* ============================================================
   Where IB? Geography DP — shared stylesheet
   Palette derives from hypsometric (elevation) map tinting:
   abyss → shelf → lowland → ochre → sienna.
   ============================================================ */

:root{
  --abyss:#0D2530;
  --ink:#15211F;
  --ink-soft:#5A6A66;
  --ink-faint:#8B9793;
  --paper:#F3F5F1;
  --panel:#FFFFFF;
  --line:#D9DED7;
  --line-soft:#E8EBE5;

  /* strand colours */
  --found:#2F5D8C;   --found-soft:#E2EAF3;
  --core:#186B72;    --core-soft:#DDECEC;
  --optE:#B9741B;    --optE-soft:#F6E9D6;
  --opt2:#7A7F86;    --opt2-soft:#E9EBED;
  --field:#4E7A3A;   --field-soft:#E4EDDE;
  --exam:#8A3B4E;    --exam-soft:#F3E2E5;
  --news:#A6482C;    --news-soft:#F6E5DE;

  --radius:12px;
  --wrap:1120px;
}

*{ box-sizing:border-box; }

html{ scroll-behavior:smooth; }

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'Newsreader', Georgia, serif;
  font-size:17px;
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
  /* graticule: a faint lat/long grid under everything */
  background-image:
    linear-gradient(to right, rgba(21,33,31,.038) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(21,33,31,.038) 1px, transparent 1px);
  background-size:88px 88px;
}

.wrap{ max-width:var(--wrap); margin:0 auto; padding:0 26px; }

a{ color:inherit; text-decoration:none; }
p{ margin:0 0 1em; }

h1,h2,h3,h4{
  font-family:'Bricolage Grotesque', system-ui, sans-serif;
  font-weight:700;
  line-height:1.08;
  letter-spacing:-.018em;
  margin:0;
}

.mono{ font-family:'IBM Plex Mono', ui-monospace, monospace; }

/* ---------- header ---------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(243,245,241,.93);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header .wrap{
  display:flex; align-items:center; gap:24px;
  min-height:64px; flex-wrap:wrap;
}
.brand{ display:flex; align-items:center; gap:10px; margin-right:auto; }
.brand .mark{ width:34px; height:34px; flex:none; display:block; }
.brand b{
  font-family:'Bricolage Grotesque', sans-serif;
  font-size:1.02rem; letter-spacing:-.02em;
}
.brand small{
  display:block; font-family:'IBM Plex Mono', monospace;
  font-size:.62rem; letter-spacing:.14em; text-transform:uppercase;
  color:var(--ink-faint); font-weight:500;
}
nav.primary{ display:flex; gap:2px; flex-wrap:wrap; }
nav.primary a{
  font-family:'IBM Plex Mono', monospace;
  font-size:.72rem; letter-spacing:.05em; text-transform:uppercase;
  padding:7px 10px; border-radius:7px; color:var(--ink-soft);
}
nav.primary a:hover{ background:var(--line-soft); color:var(--ink); }
nav.primary a.active{ background:var(--abyss); color:#fff; }

/* ---------- hero ---------- */
.hero{ padding:74px 0 44px; }
.hero-row{ display:flex; align-items:center; gap:52px; }
.hero-row .hero-text{ flex:1 1 auto; min-width:0; }
.hero-logo{
  flex:0 0 auto; width:min(258px, 30vw); height:auto; display:block;
  filter:drop-shadow(0 6px 20px rgba(13,37,48,.14));
}
.eyebrow{
  font-family:'IBM Plex Mono', monospace;
  font-size:.68rem; letter-spacing:.18em; text-transform:uppercase;
  color:var(--ink-faint);
}
.display{
  font-size:clamp(2.5rem, 6.4vw, 4.4rem);
  margin:16px 0 0;
}
.display em{ font-style:italic; font-family:'Newsreader', serif; font-weight:400; }
.lede{
  font-size:1.16rem; color:var(--ink-soft);
  max-width:60ch; margin-top:18px;
}
.crumb{
  font-family:'IBM Plex Mono', monospace; font-size:.7rem;
  letter-spacing:.08em; text-transform:uppercase; color:var(--ink-faint);
  margin-bottom:18px;
}
.crumb a:hover{ color:var(--ink); }

/* ---------- sections ---------- */
.section{ padding:52px 0; }
.section-head{
  display:flex; align-items:baseline; gap:16px;
  border-top:2px solid var(--ink); padding-top:14px; margin-bottom:30px;
}
.section-head h2{ font-size:clamp(1.5rem,2.9vw,2.05rem); }
.section-head .idx{
  font-family:'IBM Plex Mono', monospace; font-size:.72rem;
  color:var(--ink-faint); letter-spacing:.1em;
}
.section-note{ color:var(--ink-soft); max-width:64ch; margin:-14px 0 28px; }

/* ---------- core sample (signature) ---------- */
.cores{
  display:grid; grid-template-columns:repeat(4,1fr); gap:20px;
  align-items:stretch;
}
.core-col{ display:flex; flex-direction:column; }
.core-cap{
  font-family:'IBM Plex Mono', monospace; font-size:.66rem;
  letter-spacing:.1em; text-transform:uppercase; color:var(--ink-faint);
  padding-bottom:8px; border-bottom:1px solid var(--line);
  margin-bottom:10px;
}
.core-cap b{ display:block; color:var(--ink); font-size:.78rem; letter-spacing:.04em; margin-top:3px; }
.core-stack{
  flex:1; display:flex; flex-direction:column; gap:3px;
  min-height:470px;
}
.stratum{
  position:relative; display:block;
  border-radius:8px; padding:11px 13px;
  background:var(--s-soft, var(--line-soft));
  border-left:5px solid var(--s, var(--ink-faint));
  /* a band's height is proportional to its length, but never shorter than
     its own label — thin bands would otherwise clip */
  min-height:84px;
  display:flex; flex-direction:column; justify-content:center;
  transition:transform .16s ease, box-shadow .16s ease;
}
a.stratum:hover{ transform:translateX(3px); box-shadow:0 3px 14px rgba(13,37,48,.10); }
.stratum .t{
  font-family:'Bricolage Grotesque', sans-serif; font-weight:700;
  font-size:.9rem; line-height:1.18; display:block;
  overflow-wrap:break-word; hyphens:auto;
}
.stratum .m{
  font-family:'IBM Plex Mono', monospace; font-size:.63rem;
  letter-spacing:.06em; text-transform:uppercase; color:var(--ink-soft);
  display:block; margin-top:4px;
}
.stratum.tbd{
  border-left-style:dashed; background:repeating-linear-gradient(
    45deg, var(--opt2-soft), var(--opt2-soft) 9px, #fff 9px, #fff 18px);
}

/* ---------- session column (course map) ---------- */
.sessions{ border-left:2px solid var(--line); margin-left:8px; }
.srow{
  display:grid; grid-template-columns:78px 1fr; gap:20px;
  padding:14px 0 14px 22px; position:relative;
  border-bottom:1px solid var(--line-soft);
}
.srow::before{
  content:""; position:absolute; left:-7px; top:22px;
  width:12px; height:12px; border-radius:50%;
  background:var(--s, var(--ink-faint)); border:2px solid var(--paper);
}
.srow .sn{
  font-family:'IBM Plex Mono', monospace; font-size:.76rem; font-weight:600;
  color:var(--s, var(--ink-soft)); padding-top:2px; letter-spacing:.02em;
}
.srow .sf{ font-family:'Bricolage Grotesque', sans-serif; font-weight:700; font-size:1.02rem; }
.srow .sd{ color:var(--ink-soft); font-size:.95rem; margin-top:3px; }
.srow.flag{ background:linear-gradient(to right, var(--s-soft), transparent 62%); }

.tag{
  display:inline-block; font-family:'IBM Plex Mono', monospace;
  font-size:.6rem; letter-spacing:.09em; text-transform:uppercase;
  padding:3px 8px; border-radius:999px; font-weight:600;
  background:var(--s-soft); color:var(--s); margin-left:8px;
  vertical-align:middle;
}

/* ---------- cards ---------- */
.grid{ display:grid; gap:16px; }
.g2{ grid-template-columns:repeat(2,1fr); }
.g3{ grid-template-columns:repeat(3,1fr); }
.card{
  background:var(--panel); border:1px solid var(--line);
  border-radius:var(--radius); padding:22px 24px;
  border-top:3px solid var(--s, var(--line));
}
a.card{ transition:transform .16s ease, box-shadow .16s ease; }
a.card:hover{ transform:translateY(-3px); box-shadow:0 8px 22px rgba(13,37,48,.09); }
.card h3{ font-size:1.14rem; margin-bottom:6px; }
.card p{ color:var(--ink-soft); font-size:.96rem; margin-bottom:0; }
.card .kicker{
  font-family:'IBM Plex Mono', monospace; font-size:.63rem;
  letter-spacing:.1em; text-transform:uppercase; color:var(--s, var(--ink-faint));
  font-weight:600; display:block; margin-bottom:8px;
}

/* numbered sub-topic list */
ol.parts{ list-style:none; counter-reset:p; padding:0; margin:14px 0 0; }
ol.parts li{
  counter-increment:p; position:relative; padding:10px 0 10px 42px;
  border-top:1px solid var(--line-soft); font-size:.98rem;
}
ol.parts li::before{
  content:counter(p,decimal-leading-zero);
  position:absolute; left:0; top:11px;
  font-family:'IBM Plex Mono', monospace; font-size:.72rem; font-weight:600;
  color:var(--s, var(--ink-faint));
}

/* ---------- tables ---------- */
table.data{
  width:100%; border-collapse:collapse; background:var(--panel);
  border:1px solid var(--line); border-radius:var(--radius); overflow:hidden;
  font-size:.95rem;
}
table.data th{
  text-align:left; background:var(--abyss); color:#fff;
  font-family:'IBM Plex Mono', monospace; font-weight:500;
  font-size:.66rem; letter-spacing:.1em; text-transform:uppercase;
  padding:11px 15px;
}
table.data td{ padding:12px 15px; border-top:1px solid var(--line-soft); vertical-align:top; }
table.data tr:nth-child(even) td{ background:#FBFCFA; }

/* ---------- callouts ---------- */
.note{
  border:1px solid var(--line); border-left:4px solid var(--s, var(--ink-faint));
  background:var(--panel); border-radius:var(--radius);
  padding:18px 22px; margin:22px 0;
}
.note .lbl{
  font-family:'IBM Plex Mono', monospace; font-size:.64rem;
  letter-spacing:.11em; text-transform:uppercase; color:var(--s, var(--ink-soft));
  font-weight:600; display:block; margin-bottom:6px;
}
.note p:last-child{ margin-bottom:0; }
.note.open{ border-style:dashed; }

/* ---------- stat row ---------- */
.stats{ display:flex; gap:40px; flex-wrap:wrap; margin-top:34px; }
.stat b{
  font-family:'Bricolage Grotesque', sans-serif; font-size:2.1rem;
  display:block; line-height:1; letter-spacing:-.03em;
}
.stat span{
  font-family:'IBM Plex Mono', monospace; font-size:.64rem;
  letter-spacing:.11em; text-transform:uppercase; color:var(--ink-faint);
}

/* ---------- footer ---------- */
.site-footer{
  border-top:1px solid var(--line); margin-top:60px;
  padding:34px 0 54px; color:var(--ink-faint);
  font-family:'IBM Plex Mono', monospace; font-size:.7rem;
  letter-spacing:.05em;
}
.site-footer nav{ display:flex; gap:16px; flex-wrap:wrap; margin-top:12px; }
.site-footer a:hover{ color:var(--ink); }

/* ---------- a11y ---------- */
:focus-visible{ outline:3px solid var(--found); outline-offset:2px; border-radius:4px; }
@media (prefers-reduced-motion:reduce){
  *{ animation:none !important; transition:none !important; scroll-behavior:auto !important; }
}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .cores{ grid-template-columns:repeat(2,1fr); }
  .g3{ grid-template-columns:repeat(2,1fr); }
}
@media (max-width:820px){
  .hero-row{ flex-direction:column-reverse; align-items:flex-start; gap:26px; }
  .hero-logo{ width:170px; }
}
@media (max-width:620px){
  body{ font-size:16px; }
  .cores{ grid-template-columns:1fr; }
  .stratum{ min-height:0; }
  .g2,.g3{ grid-template-columns:1fr; }
  .core-stack{ min-height:0; }
  .srow{ grid-template-columns:1fr; gap:4px; }
  .hero{ padding:44px 0 30px; }
  table.data{ display:block; overflow-x:auto; }
}

/* ============================================================
   Case study map
   ============================================================ */
.maptools{
  display:flex; gap:10px; flex-wrap:wrap; align-items:center;
  margin-bottom:16px;
}
.legend{ display:flex; gap:8px; flex-wrap:wrap; }
.lgd{
  display:inline-flex; align-items:center; gap:8px;
  font-family:'IBM Plex Mono', monospace; font-size:.68rem;
  letter-spacing:.05em; text-transform:uppercase; font-weight:500;
  padding:7px 12px; border-radius:999px; cursor:pointer;
  background:var(--panel); color:var(--ink);
  border:1px solid var(--line);
  transition:opacity .15s ease, background .15s ease;
}
.lgd .sw{
  width:10px; height:10px; border-radius:50%;
  background:var(--s, var(--ink-faint)); flex:none;
}
.lgd[aria-pressed="false"]{ opacity:.4; background:transparent; }
.lgd:hover{ background:var(--line-soft); }
.lgd.reset{ margin-left:auto; border-style:dashed; }

.mapframe{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line); border-radius:var(--radius);
  padding:10px;
}
svg.worldmap{ width:100%; height:auto; display:block; }
svg.worldmap .frame{ fill:#F7FAFA; stroke:var(--line); stroke-width:1; }
svg.worldmap .land path{ fill:#DCE4DE; stroke:#FFFFFF; stroke-width:.6; }
svg.worldmap .grat path{ fill:none; stroke:rgba(13,37,48,.10); stroke-width:.7; }
svg.worldmap .equator{ fill:none; stroke:rgba(13,37,48,.22); stroke-width:.9; stroke-dasharray:5 4; }

svg.worldmap .pin{ cursor:pointer; }
svg.worldmap .pin .halo{ fill:var(--s); opacity:.16; transform:scale(.5); transition:transform .18s ease, opacity .18s ease; }
svg.worldmap .pin .dot{ fill:var(--s); stroke:#fff; stroke-width:2; transition:r .18s ease; }
svg.worldmap .pin:hover .halo,
svg.worldmap .pin:focus .halo{ transform:scale(1); opacity:.3; }
svg.worldmap .pin.on .halo{ transform:scale(1.25); opacity:.42; }
svg.worldmap .pin.on .dot{ r:9; }
svg.worldmap .pin.off{ opacity:.12; pointer-events:none; }
svg.worldmap .pin:focus{ outline:none; }
svg.worldmap .pin:focus-visible .dot{ stroke:var(--found); stroke-width:3; }

/* good news pins: a smiling marker */
svg.worldmap .pin.good .dot{ r:8.5; }
svg.worldmap .pin.good.on .dot{ r:10.5; }
svg.worldmap .pin.good .face{ pointer-events:none; }
svg.worldmap .pin.good .face .eye{ fill:#FFFFFF; }
svg.worldmap .pin.good .face .smile{
  fill:none; stroke:#FFFFFF; stroke-width:1.5;
  stroke-linecap:round;
}

.mapinfo{
  position:absolute; right:22px; bottom:22px; width:min(340px, calc(100% - 44px));
  background:var(--panel); border:1px solid var(--line);
  border-radius:var(--radius); padding:20px 22px 18px;
  box-shadow:0 10px 34px rgba(13,37,48,.16);
}
.mapinfo .close{
  position:absolute; top:10px; right:12px;
  background:none; border:none; cursor:pointer;
  font-size:1.35rem; line-height:1; color:var(--ink-faint); padding:2px 6px;
}
.mapinfo .close:hover{ color:var(--ink); }
.mapinfo .u{
  font-family:'IBM Plex Mono', monospace; font-size:.62rem;
  letter-spacing:.11em; text-transform:uppercase; font-weight:600;
}
.mapinfo h3{ font-size:1.22rem; margin:5px 0 2px; }
.mapinfo .loc{ font-size:.68rem; color:var(--ink-faint); margin:0 0 10px; letter-spacing:.03em; }
.mapinfo p{ font-size:.92rem; margin-bottom:9px; }
.mapinfo .use{ font-size:.86rem; color:var(--ink-soft); margin-bottom:0; }

.mapfoot{
  font-size:.64rem; letter-spacing:.09em; text-transform:uppercase;
  color:var(--ink-faint); margin-top:10px;
}
table.caselist tr[data-i]{ cursor:pointer; }
table.caselist tr[data-i]:hover td{ background:var(--line-soft); }
table.caselist tr.on td{ background:var(--core-soft); }
table.caselist tr.off{ display:none; }

@media (max-width:760px){
  .mapinfo{
    position:static; width:auto; margin-top:12px; box-shadow:none;
  }
  .lgd.reset{ margin-left:0; }
}


/* ============================================================
   Geography in the news
   ============================================================ */
.story{
  background:var(--panel); border:1px solid var(--line);
  border-top:4px solid var(--s, var(--news));
  border-radius:var(--radius); padding:30px 32px; margin-bottom:26px;
}
.story .dateline{
  font-family:'IBM Plex Mono', monospace; font-size:.66rem;
  letter-spacing:.1em; text-transform:uppercase; color:var(--s, var(--news));
  font-weight:600; display:flex; gap:14px; flex-wrap:wrap; align-items:center;
}
.story .dateline .live{
  background:var(--news-soft); padding:3px 9px; border-radius:999px;
}
.story h2{ font-size:clamp(1.5rem,3vw,2.05rem); margin:12px 0 10px; }
.story .standfirst{ font-size:1.08rem; color:var(--ink-soft); max-width:66ch; }
.story h4{
  font-family:'Bricolage Grotesque', sans-serif; font-size:1.05rem;
  margin:30px 0 12px; padding-top:14px; border-top:1px solid var(--line-soft);
}
.sources{ list-style:none; padding:0; margin:10px 0 0; }
.sources li{
  font-size:.9rem; padding:7px 0; border-top:1px solid var(--line-soft);
}
.sources a{ text-decoration:underline; text-underline-offset:2px; }
.sources .pub{
  font-family:'IBM Plex Mono', monospace; font-size:.64rem;
  letter-spacing:.08em; text-transform:uppercase; color:var(--ink-faint);
  display:block;
}
.qlist{ list-style:none; padding:0; margin:0; counter-reset:q; }
.qlist li{
  counter-increment:q; position:relative; padding:12px 0 12px 40px;
  border-top:1px solid var(--line-soft); font-size:1rem;
}
.qlist li::before{
  content:"Q" counter(q); position:absolute; left:0; top:13px;
  font-family:'IBM Plex Mono', monospace; font-size:.66rem; font-weight:600;
  color:var(--news); letter-spacing:.05em;
}

/* news index cards */
a.newscard{
  display:block; background:var(--panel); border:1px solid var(--line);
  border-left:5px solid var(--s, var(--news));
  border-radius:var(--radius); padding:24px 26px; margin-bottom:16px;
  transition:transform .16s ease, box-shadow .16s ease;
}
a.newscard:hover{ transform:translateX(4px); box-shadow:0 8px 24px rgba(13,37,48,.10); }
a.newscard h3{ font-size:1.42rem; margin:11px 0 8px; line-height:1.14; }
a.newscard .standfirst{ color:var(--ink-soft); font-size:1rem; margin-bottom:14px; max-width:70ch; }
a.newscard .tags{ display:flex; gap:7px; flex-wrap:wrap; align-items:center; }
a.newscard .tg{
  font-family:'IBM Plex Mono', monospace; font-size:.6rem;
  letter-spacing:.08em; text-transform:uppercase; font-weight:600;
  padding:3px 9px; border-radius:999px;
  background:var(--line-soft); color:var(--ink-soft);
}
a.newscard .more{
  margin-left:auto; font-family:'IBM Plex Mono', monospace;
  font-size:.66rem; letter-spacing:.09em; text-transform:uppercase;
  color:var(--s, var(--news)); font-weight:600;
}
.backlink{
  display:inline-block; font-family:'IBM Plex Mono', monospace;
  font-size:.68rem; letter-spacing:.08em; text-transform:uppercase;
  color:var(--ink-soft); margin-top:30px;
  border:1px solid var(--line); border-radius:999px; padding:8px 15px;
}
.backlink:hover{ background:var(--line-soft); color:var(--ink); }

/* news map: card hover highlights its pin */
svg.worldmap .pin.hi .halo{ transform:scale(1.15); opacity:.38; }
svg.worldmap .pin.hi .dot{ r:9; }

/* primary call-to-action button */
.cta{
  display:inline-flex; align-items:center; gap:10px;
  background:var(--abyss); color:#fff;
  font-family:'Bricolage Grotesque', sans-serif; font-weight:700;
  font-size:1.02rem; letter-spacing:-.01em;
  padding:15px 26px; border-radius:999px;
  transition:transform .16s ease, box-shadow .16s ease;
}
.cta:hover{ transform:translateY(-2px); box-shadow:0 8px 22px rgba(13,37,48,.24); }
.cta .arrow{ font-size:1.1rem; }
.ctarow{ display:flex; align-items:center; gap:18px; flex-wrap:wrap; margin:6px 0 4px; }
.ctarow .ctanote{
  font-family:'IBM Plex Mono', monospace; font-size:.68rem;
  letter-spacing:.06em; text-transform:uppercase; color:var(--ink-faint);
}

/* footer contact + assignments */
.footer-top{
  display:flex; gap:12px; flex-wrap:wrap; align-items:center;
  padding-bottom:22px; margin-bottom:20px;
  border-bottom:1px solid var(--line);
}
.flink{
  display:inline-flex; align-items:center; gap:9px;
  font-family:'IBM Plex Mono', monospace; font-size:.7rem;
  letter-spacing:.06em; text-transform:uppercase; font-weight:600;
  padding:10px 16px; border-radius:999px;
  border:1px solid var(--line); background:var(--panel); color:var(--ink);
  transition:background .15s ease, transform .15s ease;
}
.flink:hover{ background:var(--line-soft); transform:translateY(-1px); }
.flink.primary{ background:var(--abyss); color:#fff; border-color:var(--abyss); }
.flink.primary:hover{ background:#123646; color:#fff; }
.flink .ic{ font-size:.85rem; line-height:1; }

/* teaching team block */
.footer-team{ display:flex; gap:10px; flex-wrap:wrap; align-items:center; }
.footer-team .lbl{
  font-family:'IBM Plex Mono', monospace; font-size:.62rem;
  letter-spacing:.12em; text-transform:uppercase; color:var(--ink-faint);
  margin-right:2px;
}
.flink.person{ text-transform:none; letter-spacing:.01em; font-size:.72rem; }

/* template download */
.dl{
  display:inline-flex; align-items:center; gap:11px;
  background:var(--abyss); color:#fff;
  font-family:'Bricolage Grotesque', sans-serif; font-weight:700; font-size:.98rem;
  padding:14px 24px; border-radius:999px;
  transition:transform .16s ease, box-shadow .16s ease;
}
.dl:hover{ transform:translateY(-2px); box-shadow:0 8px 22px rgba(13,37,48,.24); }
.dl.alt{
  background:transparent; color:var(--abyss);
  box-shadow:inset 0 0 0 2px var(--abyss);
  padding:12px 22px;
}
.dl.alt:hover{ background:var(--abyss); color:#fff; box-shadow:0 8px 22px rgba(13,37,48,.24); }
.dlrow{ display:flex; align-items:center; gap:16px; flex-wrap:wrap; margin-top:14px; }
.dlrow .meta{
  font-family:'IBM Plex Mono', monospace; font-size:.66rem;
  letter-spacing:.07em; text-transform:uppercase; color:var(--ink-faint);
}

/* ============================================================
   Study tools — practice questions & glossary search
   ============================================================ */
.q{
  background:var(--panel); border:1px solid var(--line);
  border-left:5px solid var(--s, var(--exam));
  border-radius:var(--radius); margin-bottom:12px; overflow:hidden;
}
.q > summary{
  list-style:none; cursor:pointer; padding:18px 22px;
  display:block; position:relative;
}
.q > summary::-webkit-details-marker{ display:none; }
.q > summary:hover{ background:var(--line-soft); }
.q .qmeta{
  display:flex; gap:8px; flex-wrap:wrap; align-items:center; margin-bottom:9px;
}
.q .cmd{
  font-family:'IBM Plex Mono', monospace; font-size:.6rem; font-weight:600;
  letter-spacing:.1em; text-transform:uppercase;
  background:var(--s-soft, var(--exam-soft)); color:var(--s, var(--exam));
  padding:3px 9px; border-radius:999px;
}
.q .marks{
  font-family:'IBM Plex Mono', monospace; font-size:.6rem; font-weight:600;
  letter-spacing:.08em; text-transform:uppercase; color:var(--ink-faint);
  border:1px solid var(--line); padding:3px 9px; border-radius:999px;
}
.q .topic{
  font-family:'IBM Plex Mono', monospace; font-size:.6rem;
  letter-spacing:.08em; text-transform:uppercase; color:var(--ink-faint);
  margin-left:auto;
}
.q .qtext{
  font-family:'Bricolage Grotesque', sans-serif; font-weight:700;
  font-size:1.04rem; line-height:1.3;
}
.q .reveal{
  font-family:'IBM Plex Mono', monospace; font-size:.63rem; font-weight:600;
  letter-spacing:.09em; text-transform:uppercase; color:var(--s, var(--exam));
  margin-top:11px; display:inline-block;
}
.q[open] > summary .reveal::after{ content:" \2014 hide"; }
.q[open] > summary .reveal::before{ content:"What this question wants"; }
.q:not([open]) > summary .reveal::before{ content:"What this question wants \2192"; }
.q .ans{
  padding:4px 22px 20px; border-top:1px solid var(--line-soft);
  background:#FBFCFA;
}
.q .ans ol{ margin:14px 0 0; padding-left:20px; }
.q .ans li{ margin-bottom:8px; font-size:.95rem; }
.q .trap{
  margin-top:14px; padding:12px 15px; border-radius:8px;
  background:var(--exam-soft); font-size:.92rem;
}
.q .trap b{ color:var(--exam); }

/* glossary search */
.gsearch{ position:relative; margin-bottom:8px; }
.gsearch input{
  width:100%; padding:16px 20px 16px 48px;
  font-family:'Newsreader', serif; font-size:1.05rem; color:var(--ink);
  background:var(--panel); border:1px solid var(--line);
  border-radius:999px;
}
.gsearch input::placeholder{ color:var(--ink-faint); }
.gsearch input:focus{ outline:3px solid var(--found); outline-offset:2px; }
.gsearch .ico{
  position:absolute; left:20px; top:50%; transform:translateY(-50%);
  color:var(--ink-faint); font-size:1.05rem; pointer-events:none;
}
.gcount{
  font-family:'IBM Plex Mono', monospace; font-size:.66rem;
  letter-spacing:.08em; text-transform:uppercase; color:var(--ink-faint);
  margin:0 0 30px 20px;
}
.gsec.hide, tr.hide{ display:none; }
mark{ background:var(--optE-soft); color:inherit; padding:0 2px; border-radius:3px; }
.gnone{
  text-align:center; padding:40px 20px; color:var(--ink-faint);
  font-family:'IBM Plex Mono', monospace; font-size:.75rem;
  letter-spacing:.06em; text-transform:uppercase;
}

/* ============================================================
   Interactive tool links — used on unit, exam and case pages
   to point students at the browser tools on interactives.html
   ============================================================ */
.toolstrip{ margin-top:18px; padding-top:14px; border-top:1px dashed var(--line); }
.toolstrip .lbl{
  font-family:'IBM Plex Mono', ui-monospace, monospace;
  font-size:.68rem; letter-spacing:.08em; text-transform:uppercase;
  color:var(--ink-faint); display:block; margin-bottom:9px;
}
.toolstrip .row{ display:flex; flex-wrap:wrap; gap:8px; }
a.toollink{
  display:inline-flex; align-items:center; gap:7px;
  font-family:'Bricolage Grotesque', system-ui, sans-serif;
  font-weight:600; font-size:.9rem; line-height:1;
  padding:8px 13px; border:1px solid var(--line);
  background:var(--panel); color:var(--ink);
  transition:background .15s ease, border-color .15s ease, color .15s ease;
}
a.toollink:hover{ background:var(--s,var(--core)); border-color:var(--s,var(--core)); color:#fff; }
a.toollink .ext{ font-size:.78em; color:var(--ink-faint); }
a.toollink:hover .ext{ color:#fff; }
a.toollink.allbtn{ background:var(--ink); border-color:var(--ink); color:var(--paper); }
a.toollink.allbtn:hover{ background:var(--abyss); border-color:var(--abyss); }