/* ============================================================
   TRENDS & ISSUES IN MARITIME EDUCATION
   Visual identity: "The Chart Room" — training-ship logbook,
   brass instruments, signal flags. Deliberately distinct from
   the STS site's navy/serif "open voyage" look.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@400;500;600;700;800;900&family=Archivo+Expanded:wght@600;700;800;900&family=Spectral:ital,wght@0,400;0,500;0,600;1,400;1,500&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  /* ---- chart-room palette ---- */
  --ink:#0d2a2b;          /* deep teal-black ink */
  --ink-2:#12403f;        /* pine teal */
  --teal:#1c5e5a;         /* chart teal */
  --brass:#c98a2b;        /* brass / amber accent */
  --brass-lt:#e6b45a;
  --coral:#d9603b;        /* signal coral */
  --paper:#f6f1e4;        /* chart paper */
  --paper-2:#efe7d3;      /* darker paper */
  --line:#d8cdb2;         /* faint chart grid */
  --line-ink:#b8a97f;
  --white:#fffdf7;
  --muted:#5c6b66;
  --shadow: 24px 24px 0 rgba(13,42,43,.06);

  --sans:'Archivo',system-ui,sans-serif;
  --exp:'Archivo Expanded','Archivo',system-ui,sans-serif;
  --serif:'Spectral',Georgia,serif;
  --mono:'IBM Plex Mono',ui-monospace,monospace;

  --wrap:1180px;
  --r:3px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--serif);
  background:var(--paper);
  color:var(--ink);
  line-height:1.65;
  font-size:18px;
  overflow-x:hidden;
  /* faint chart grid */
  background-image:
    linear-gradient(rgba(184,169,127,.10) 1px,transparent 1px),
    linear-gradient(90deg,rgba(184,169,127,.10) 1px,transparent 1px);
  background-size:26px 26px;
}
::selection{background:var(--brass);color:var(--ink)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px}

/* ---------------- eyebrow / labels ---------------- */
.eyebrow{
  font-family:var(--mono);
  font-size:.72rem;letter-spacing:.28em;text-transform:uppercase;
  color:var(--teal);font-weight:600;
  display:inline-flex;align-items:center;gap:.6em;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--brass)}

/* ---------------- nav ---------------- */
.nav{
  position:sticky;top:0;z-index:60;
  background:rgba(246,241,228,.86);
  backdrop-filter:blur(10px);
  border-bottom:2px solid var(--ink);
}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--exp);font-weight:800}
.brand .flag{
  width:34px;height:24px;flex:none;border:1.5px solid var(--ink);
  background:
    linear-gradient(135deg,var(--coral) 0 50%,var(--paper) 50% 100%);
  position:relative;
}
.brand .flag::after{content:"";position:absolute;inset:6px;border:1.5px solid var(--ink);border-radius:50%}
.brand b{font-size:1.02rem;letter-spacing:.02em;line-height:1}
.brand span{font-family:var(--mono);font-size:.62rem;letter-spacing:.22em;color:var(--teal);text-transform:uppercase;display:block;margin-top:3px}
.navlinks{display:flex;gap:30px;align-items:center;font-family:var(--sans);font-weight:600;font-size:.9rem}
.navlinks a{position:relative;padding:4px 0;letter-spacing:.01em}
.navlinks a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--brass);transition:width .25s}
.navlinks a:hover::after,.navlinks a.active::after{width:100%}
.navtoggle{display:none;background:none;border:2px solid var(--ink);border-radius:var(--r);padding:6px 9px;font-size:1.1rem;cursor:pointer}

/* ---------------- hero ---------------- */
.hero{position:relative;padding:88px 0 70px;overflow:hidden}
.hero .wrap{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero h1{
  font-family:var(--exp);font-weight:900;
  font-size:clamp(2.7rem,6vw,5rem);line-height:.96;
  letter-spacing:-.015em;text-transform:uppercase;
  color:var(--ink);margin:22px 0 0;
}
.hero h1 .em{
  color:var(--coral);position:relative;display:inline-block;
}
.hero .kicker{
  font-family:var(--mono);font-size:.9rem;letter-spacing:.06em;
  color:var(--teal);margin-top:26px;max-width:44ch;line-height:1.75;
}
.hero .lede{font-size:1.16rem;margin-top:20px;max-width:46ch;color:var(--ink-2)}
.hero-cta{display:flex;gap:16px;margin-top:34px;flex-wrap:wrap}

.btn{
  font-family:var(--sans);font-weight:700;font-size:.92rem;
  letter-spacing:.02em;padding:15px 26px;border:2px solid var(--ink);
  border-radius:var(--r);cursor:pointer;transition:transform .18s, box-shadow .18s, background .18s;
  display:inline-flex;align-items:center;gap:.6em;background:var(--white);
}
.btn:hover{transform:translate(-3px,-3px);box-shadow:6px 6px 0 var(--ink)}
.btn.primary{background:var(--brass);}
.btn.primary:hover{background:var(--brass-lt)}
.btn.ink{background:var(--ink);color:var(--paper)}
.btn.ink:hover{box-shadow:6px 6px 0 var(--coral)}

/* --- hero instrument card: bearing/compass --- */
.instrument{
  position:relative;aspect-ratio:1;border:2px solid var(--ink);
  border-radius:50%;background:
    radial-gradient(circle at 50% 50%,var(--white) 0 62%,var(--paper-2) 62% 100%);
  box-shadow:var(--shadow);
  display:grid;place-items:center;
}
.instrument .ring{position:absolute;inset:14px;border-radius:50%;border:1px solid var(--line-ink)}
.instrument .ring.r2{inset:34px;border-style:dashed}
.instrument .sweep{
  position:absolute;inset:34px;border-radius:50%;
  background:conic-gradient(from 0deg,rgba(28,94,90,.28),transparent 42%);
  animation:sweep 5.5s linear infinite;
  transform-origin:center;
}
@keyframes sweep{to{transform:rotate(360deg)}}
.instrument .hub{width:14px;height:14px;border-radius:50%;background:var(--coral);border:2px solid var(--ink);z-index:3}
.instrument .tick{position:absolute;left:50%;top:8px;width:2px;height:12px;background:var(--ink);transform-origin:50% calc(50vw)} /* replaced by JS-free marks below */
.instrument .cardinal{position:absolute;font-family:var(--mono);font-weight:600;font-size:.8rem;color:var(--ink)}
.instrument .cardinal.n{top:20px;left:50%;transform:translateX(-50%)}
.instrument .cardinal.s{bottom:20px;left:50%;transform:translateX(-50%)}
.instrument .cardinal.e{right:22px;top:50%;transform:translateY(-50%)}
.instrument .cardinal.w{left:22px;top:50%;transform:translateY(-50%)}
.instrument .center-label{position:relative;z-index:4;text-align:center}
.instrument .center-label .big{font-family:var(--exp);font-weight:900;font-size:2.6rem;line-height:1;color:var(--ink)}
.instrument .center-label .sm{font-family:var(--mono);font-size:.62rem;letter-spacing:.2em;text-transform:uppercase;color:var(--teal);margin-top:6px}

/* hero meta strip */
.metastrip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border:2px solid var(--ink);border-radius:var(--r);margin-top:56px;
  background:var(--white);overflow:hidden;
}
.metastrip .cell{padding:20px 22px;border-right:2px solid var(--ink)}
.metastrip .cell:last-child{border-right:none}
.metastrip .cell .k{font-family:var(--mono);font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;color:var(--teal)}
.metastrip .cell .v{font-family:var(--exp);font-weight:800;font-size:1.5rem;margin-top:6px;line-height:1}

/* ---------------- section frame ---------------- */
.section{padding:88px 0;position:relative}
.section.alt{background:var(--ink);color:var(--paper);
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:26px 26px;}
.section.alt .eyebrow{color:var(--brass-lt)}
.section.alt .eyebrow::before{background:var(--coral)}
.sec-head{max-width:62ch;margin-bottom:48px}
.sec-head h2{font-family:var(--exp);font-weight:800;font-size:clamp(1.8rem,4vw,2.9rem);line-height:1.02;letter-spacing:-.01em;margin:16px 0 0;text-transform:uppercase}
.sec-head p{margin-top:16px;font-size:1.1rem;color:var(--muted)}
.section.alt .sec-head p{color:#bcc9c5}

/* ---------------- capability cards ---------------- */
.caps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:2px solid var(--ink);border-radius:var(--r);overflow:hidden;background:var(--white)}
.cap{padding:32px 28px;border-right:2px solid var(--ink);border-bottom:2px solid var(--ink);position:relative;transition:background .2s}
.cap:hover{background:var(--paper-2)}
.cap:nth-child(3n){border-right:none}
.cap:nth-child(n+4){}
.caps .cap:nth-last-child(-n+3){border-bottom:none}
.cap .no{font-family:var(--mono);font-size:.72rem;color:var(--brass);font-weight:600;letter-spacing:.12em}
.cap h3{font-family:var(--sans);font-weight:800;font-size:1.16rem;margin:14px 0 8px}
.cap p{font-size:.98rem;color:var(--muted);line-height:1.55}
.cap .flagchip{width:30px;height:20px;border:1.5px solid var(--ink);margin-top:16px}

/* ---------------- module map ---------------- */
.mapgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.mod-card{
  display:block;border:2px solid var(--ink);border-radius:var(--r);
  background:var(--white);padding:0;overflow:hidden;position:relative;
  transition:transform .18s, box-shadow .18s;
}
.mod-card:hover{transform:translate(-4px,-4px);box-shadow:8px 8px 0 var(--ink)}
.mod-card .flagband{height:10px;width:100%}
.mod-card .body{padding:18px 18px 20px}
.mod-card .mno{font-family:var(--mono);font-size:.7rem;letter-spacing:.16em;color:var(--teal);font-weight:600;display:flex;justify-content:space-between}
.mod-card .term{color:var(--coral)}
.mod-card h4{font-family:var(--sans);font-weight:700;font-size:1.02rem;line-height:1.2;margin-top:12px;min-height:2.8em;color:var(--ink)}
.mod-card .go{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;color:var(--brass);margin-top:14px;display:inline-flex;gap:.4em;font-weight:600}
.term-tag{display:inline-block;font-family:var(--mono);font-size:.66rem;letter-spacing:.18em;text-transform:uppercase;border:1.5px solid currentColor;border-radius:2px;padding:2px 8px}

/* term divider */
.term-divider{grid-column:1/-1;display:flex;align-items:center;gap:18px;margin:26px 0 6px}
.term-divider:first-child{margin-top:0}
.term-divider .lbl{font-family:var(--exp);font-weight:800;font-size:1.1rem;text-transform:uppercase;letter-spacing:.04em;white-space:nowrap}
.term-divider .rule{flex:1;height:2px;background:var(--ink)}
.term-divider .cnt{font-family:var(--mono);font-size:.72rem;color:var(--muted)}

/* ---------------- course spec table ---------------- */
.spec{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.spectable{border:2px solid var(--paper);border-radius:var(--r);overflow:hidden;width:100%}
.spectable .row{display:grid;grid-template-columns:150px 1fr;border-bottom:1px solid rgba(246,241,228,.2)}
.spectable .row:last-child{border-bottom:none}
.spectable .row .k{padding:13px 16px;font-family:var(--mono);font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--brass-lt);background:rgba(255,255,255,.04)}
.spectable .row .v{padding:13px 16px;font-size:.98rem}
.colist{list-style:none;margin-top:8px}
.colist li{padding:18px 0;border-bottom:1px solid rgba(255,255,255,.12);display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start}
.colist li:last-child{border-bottom:none}
.colist .cono{font-family:var(--exp);font-weight:800;font-size:1.1rem;color:var(--brass-lt);white-space:nowrap}
.colist p{color:#cdd8d4;font-size:.98rem}

/* callout legend chips (course page) */
.legend{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:8px}
.legend .lg{border:2px solid var(--ink);border-radius:var(--r);padding:20px;background:var(--white)}
.legend .lg .tag{font-family:var(--mono);font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;font-weight:600}
.legend .lg p{font-size:.95rem;color:var(--muted);margin-top:8px}
.legend .lg.dyk{border-left:8px solid var(--teal)} .legend .lg.dyk .tag{color:var(--teal)}
.legend .lg.snap{border-left:8px solid var(--brass)} .legend .lg.snap .tag{color:var(--brass)}
.legend .lg.think{border-left:8px solid var(--coral)} .legend .lg.think .tag{color:var(--coral)}

/* ---------------- footer ---------------- */
.foot{background:var(--ink);color:var(--paper);padding:64px 0 40px;border-top:6px solid var(--brass)}
.foot .top{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;border-bottom:1px solid rgba(255,255,255,.14);padding-bottom:34px}
.foot h3{font-family:var(--exp);font-weight:800;font-size:1.5rem;text-transform:uppercase}
.foot p{color:#bcc9c5;max-width:42ch;margin-top:12px;font-size:.98rem}
.foot .pillars{display:flex;gap:34px;flex-wrap:wrap}
.foot .pillar .k{font-family:var(--sans);font-weight:800;font-size:1.05rem;color:var(--brass-lt)}
.foot .pillar .d{font-family:var(--mono);font-size:.72rem;color:#9fb0ab;letter-spacing:.08em;margin-top:4px}
.foot .base{margin-top:26px;font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;color:#8fa19c;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* =====================================================
   MODULE PAGE
   ===================================================== */
.mod-hero{padding:60px 0 44px;border-bottom:2px solid var(--ink);position:relative}
.mod-hero .flagband{height:14px;width:120px;border:2px solid var(--ink);margin-bottom:24px}
.mod-hero .crumbs{font-family:var(--mono);font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--teal);margin-bottom:18px}
.mod-hero .crumbs a:hover{color:var(--coral)}
.mod-hero h1{font-family:var(--exp);font-weight:900;font-size:clamp(2rem,5vw,3.4rem);line-height:1;text-transform:uppercase;letter-spacing:-.01em;max-width:20ch}
.mod-hero .outcome{margin-top:22px;font-family:var(--sans);font-weight:600;font-size:1.05rem;color:var(--ink-2);max-width:60ch}
.mod-hero .idx{position:absolute;top:44px;right:28px;font-family:var(--exp);font-weight:900;font-size:clamp(3rem,10vw,7rem);color:rgba(13,42,43,.07);line-height:1}

.mod-body{display:grid;grid-template-columns:230px 1fr;gap:56px;padding:56px 0 90px;align-items:start}
.mod-toc{position:sticky;top:96px;font-family:var(--sans)}
.mod-toc .lbl{font-family:var(--mono);font-size:.68rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.mod-toc a{display:block;font-size:.9rem;font-weight:600;padding:7px 0 7px 14px;border-left:2px solid var(--line);color:var(--muted);transition:.18s}
.mod-toc a:hover,.mod-toc a.active{border-left-color:var(--coral);color:var(--ink);padding-left:18px}

.prose h2{font-family:var(--exp);font-weight:800;font-size:1.6rem;text-transform:uppercase;letter-spacing:-.005em;margin:44px 0 14px;padding-top:8px}
.prose h2:first-child{margin-top:0}
.prose h3{font-family:var(--sans);font-weight:800;font-size:1.18rem;margin:30px 0 10px;color:var(--ink-2)}
.prose p{margin:0 0 18px;max-width:68ch}
.prose .lead{font-size:1.2rem;font-style:italic;color:var(--ink-2);border-left:3px solid var(--brass);padding-left:22px;margin-bottom:28px}
.prose ul.los{list-style:none;margin:6px 0 10px}
.prose ul.los li{position:relative;padding:8px 0 8px 30px;max-width:66ch}
.prose ul.los li::before{content:"▸";position:absolute;left:6px;color:var(--coral);font-size:1rem}

/* callout on module page */
.callout{border:2px solid var(--ink);border-radius:var(--r);padding:22px 24px;margin:26px 0;background:var(--white);position:relative;max-width:70ch}
.callout .tag{font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;font-weight:600;display:flex;align-items:center;gap:.55em;margin-bottom:10px}
.callout .tag .dot{width:12px;height:12px;border:1.5px solid var(--ink)}
.callout p{margin:0;font-style:italic;color:var(--ink-2)}
.callout.dyk{border-left:10px solid var(--teal)} .callout.dyk .tag{color:var(--teal)} .callout.dyk .dot{background:var(--teal)}
.callout.snap{border-left:10px solid var(--brass)} .callout.snap .tag{color:var(--brass)} .callout.snap .dot{background:var(--brass)}
.callout.think{border-left:10px solid var(--coral)} .callout.think .tag{color:var(--coral)} .callout.think .dot{background:var(--coral)}

/* task block */
.task{border:2px dashed var(--teal);border-radius:var(--r);background:rgba(28,94,90,.05);padding:26px 28px;margin:34px 0}
.task .tag{font-family:var(--mono);font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;color:var(--teal);font-weight:600;margin-bottom:10px}
.task p{margin:0;max-width:70ch}

/* quiz */
.quiz{border:2px solid var(--ink);border-radius:var(--r);background:var(--white);padding:0;margin:30px 0;overflow:hidden}
.quiz .qhead{background:var(--ink);color:var(--paper);padding:18px 24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}
.quiz .qhead .t{font-family:var(--exp);font-weight:800;text-transform:uppercase;font-size:1.05rem}
.quiz .qhead .score{font-family:var(--mono);font-size:.8rem;color:var(--brass-lt)}
.quiz .qbody{padding:24px}
.q{padding:18px 0;border-bottom:1px solid var(--line)}
.q:last-of-type{border-bottom:none}
.q .qq{font-weight:600;font-family:var(--sans);margin-bottom:12px;display:flex;gap:10px}
.q .qq .n{color:var(--coral);font-family:var(--mono);font-weight:600}
.opt{display:flex;align-items:flex-start;gap:10px;padding:9px 12px;border:1.5px solid var(--line);border-radius:var(--r);margin-bottom:8px;cursor:pointer;font-size:.98rem;transition:.14s;background:var(--paper)}
.opt:hover{border-color:var(--ink)}
.opt input{margin-top:5px;accent-color:var(--teal)}
.opt.correct{border-color:var(--teal);background:rgba(28,94,90,.12)}
.opt.wrong{border-color:var(--coral);background:rgba(217,96,59,.1)}
.opt .ltr{font-family:var(--mono);font-weight:600;color:var(--teal)}
.quiz .actions{padding:20px 24px;border-top:2px solid var(--ink);display:flex;gap:14px;align-items:center;flex-wrap:wrap;background:var(--paper-2)}
.result{font-family:var(--exp);font-weight:800;font-size:1.1rem;display:none}
.result.show{display:block}

/* essays + refs */
.essays{border-left:3px solid var(--brass);padding-left:24px;margin:20px 0}
.essays .e{margin-bottom:16px}
.essays .e .n{font-family:var(--mono);color:var(--brass);font-weight:600;margin-right:8px}
.refs{margin-top:10px}
.refs li{list-style:none;font-family:var(--sans);font-size:.9rem;color:var(--muted);padding:8px 0 8px 26px;text-indent:-26px;border-bottom:1px dotted var(--line)}
.refs li:last-child{border-bottom:none}

/* module footer nav */
.modnav{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:40px 0 80px}
.modnav a{border:2px solid var(--ink);border-radius:var(--r);padding:22px 24px;background:var(--white);transition:.18s}
.modnav a:hover{transform:translateY(-3px);box-shadow:6px 6px 0 var(--ink)}
.modnav a.next{text-align:right}
.modnav .dir{font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--teal)}
.modnav .ttl{font-family:var(--sans);font-weight:700;margin-top:8px;font-size:1.05rem}
.modnav a.disabled{opacity:.35;pointer-events:none}

/* ---------------- responsive ---------------- */
@media(max-width:960px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero .instrument-wrap{max-width:360px;margin:0 auto}
  .spec{grid-template-columns:1fr;gap:32px}
  .caps{grid-template-columns:1fr 1fr}
  .cap:nth-child(3n){border-right:2px solid var(--ink)}
  .cap:nth-child(2n){border-right:none}
  .mapgrid{grid-template-columns:repeat(2,1fr)}
  .mod-body{grid-template-columns:1fr}
  .mod-toc{display:none}
}
@media(max-width:640px){
  body{font-size:16.5px}
  .hero h1{font-size:clamp(2rem,10vw,2.8rem);word-break:break-word;hyphens:auto}
  .hero{padding:56px 0 44px}
  .section{padding:60px 0}
  .navlinks{display:none;position:absolute;top:72px;left:0;right:0;flex-direction:column;background:var(--paper);border-bottom:2px solid var(--ink);padding:16px 28px;gap:14px}
  .navlinks.open{display:flex}
  .navtoggle{display:block}
  .metastrip{grid-template-columns:1fr 1fr}
  .metastrip .cell:nth-child(2){border-right:none}
  .metastrip .cell:nth-child(-n+2){border-bottom:2px solid var(--ink)}
  .caps{grid-template-columns:1fr}
  .cap{border-right:none!important}
  .mapgrid{grid-template-columns:1fr}
  .legend{grid-template-columns:1fr}
  .foot .top{flex-direction:column}
  .modnav{grid-template-columns:1fr}
}
/* progressive reveal — content animates in, but is guaranteed visible via
   a CSS fallback so it never gets stuck faded if the JS observer misses it. */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s var(--d,0ms),transform .5s var(--d,0ms);animation:reveal-fallback .01s linear 1.6s forwards}
.reveal.shown{opacity:1;transform:none;animation:none}
@keyframes reveal-fallback{to{opacity:1;transform:none}}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .sweep{display:none}
  .reveal{opacity:1!important;transform:none!important}
}

/* ---- light variants (course spec now on light home section) ---- */
.spectable.light{border:2px solid var(--ink)}
.spectable.light .row{border-bottom:1px solid var(--line)}
.spectable.light .row .k{background:var(--paper-2);color:var(--teal)}
.spectable.light .row .v{color:var(--ink)}
.colist.light li{border-bottom:1px solid var(--line)}
.colist.light .cono{color:var(--brass)}
.colist.light p{color:var(--ink-2)}
.section .colist.light em{color:var(--teal);font-style:italic}

/* TOC back link on module reader */
.mod-toc .back{display:inline-block;font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--coral);border-left:none;padding:0 0 16px;font-weight:600}
.mod-toc .back:hover{color:var(--ink);padding-left:0}

/* smooth view switch */
#module-view{animation:fadein .3s ease}
@keyframes fadein{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}