/* ---------- tokens: light is the base, both dark states re-declare ---------- */
:root{
  --bg:#ffffff;
  --surface:#f4faf9;
  --surface-2:#eaf4f3;
  --plate:#ffffff;          /* figure plate — slide exports keep a paper ground */
  --ink:#101819;
  --head:#0a1213;
  --muted:#5d7276;
  --rule:#dbe8e7;
  --rule-soft:#eaf1f0;
  --accent:#077f7a;
  --accent-strong:#045c58;
  --accent-wash:rgba(7,127,122,.075);
  --brand:#66e6e3;
  --navy:#0f2a4a;
  --nav-bg:rgba(255,255,255,.88);
  --shadow:0 1px 2px rgba(10,40,40,.05),0 8px 24px rgba(10,40,40,.055);
  /* page backdrop: the photo shows through this scrim, lighter at the top */
  --scrim-top:rgba(255,255,255,.72);
  --scrim-mid:rgba(255,255,255,.86);
  --scrim-far:rgba(255,255,255,.88);
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0e1416;
    --surface:#161e21;
    --surface-2:#1c262a;
    --plate:#f2f7f7;
    --ink:#dfeaec;
    --head:#f1f8f8;
    --muted:#8ea6aa;
    --rule:#263235;
    --rule-soft:#1c262a;
    --accent:#66e6e3;
    --accent-strong:#9df2f0;
    --accent-wash:rgba(102,230,227,.11);
    --brand:#66e6e3;
    --navy:#0b1e36;
    --nav-bg:rgba(14,20,22,.88);
    --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px rgba(0,0,0,.28);
    --scrim-top:rgba(9,16,18,.50);
    --scrim-mid:rgba(9,16,18,.74);
    --scrim-far:rgba(9,16,18,.78);
  }
}
:root[data-theme="dark"]{
  --bg:#0e1416;
  --surface:#161e21;
  --surface-2:#1c262a;
  --plate:#f2f7f7;
  --ink:#dfeaec;
  --head:#f1f8f8;
  --muted:#8ea6aa;
  --rule:#263235;
  --rule-soft:#1c262a;
  --accent:#66e6e3;
  --accent-strong:#9df2f0;
  --accent-wash:rgba(102,230,227,.11);
  --brand:#66e6e3;
  --navy:#0b1e36;
  --nav-bg:rgba(14,20,22,.88);
  --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px rgba(0,0,0,.28);
  --scrim-top:rgba(9,16,18,.50);
  --scrim-mid:rgba(9,16,18,.74);
  --scrim-far:rgba(9,16,18,.78);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
/* Page backdrop — the photo stays put while the content scrolls over it,
   read through a scrim that clears at the top and closes in further down.
   Swap the filename to change the backdrop: hero-cluster.jpg (molecular
   cluster) or hero-facade.jpg (navy structural grid). */
body::before{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    linear-gradient(180deg,var(--scrim-top) 0%,var(--scrim-mid) 30%,var(--scrim-far) 100%),
    url("../img/hero-cluster.jpg") center center/cover no-repeat;
}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:Roboto,"Noto Sans KR",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  font-size:16.5px;line-height:1.64;font-weight:400;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  /* Korean wraps at word (어절) boundaries, never mid-word */
  word-break:keep-all;overflow-wrap:break-word;
}
:lang(ko),.ko{font-family:"Noto Sans KR",Roboto,-apple-system,"Malgun Gothic",sans-serif;}
h1,h2,h3,h4{font-family:"Roboto Slab",Georgia,"Noto Sans KR",serif;color:var(--head);text-wrap:balance;margin:0}
a{color:var(--accent);text-decoration:none;border-bottom:1px solid transparent;transition:border-color .15s,color .15s}
a:hover{color:var(--accent-strong);border-bottom-color:currentColor}
a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}
img{max-width:100%;display:block}
::selection{background:var(--accent-wash)}

/* ---------- shell ---------- */
.wrap{max-width:880px;margin:0 auto;padding:0 24px}

nav{
  position:sticky;top:0;z-index:20;
  background:var(--nav-bg);backdrop-filter:saturate(1.5) blur(12px);
  border-bottom:1px solid var(--rule);
}
.nav-in{max-width:880px;margin:0 auto;padding:11px 24px;display:flex;align-items:center;gap:18px}
.brand{display:flex;align-items:center;gap:10px;border:0}
.brand img{width:30px;height:30px;border-radius:7px}
.brand b{font-family:"Roboto Slab",Georgia,serif;font-size:1.05rem;letter-spacing:-.01em;color:var(--head);font-weight:700}
.nav-links{margin-left:auto;display:flex;align-items:center;gap:2px;flex-wrap:wrap;justify-content:flex-end}
.nav-links button{
  font:inherit;font-size:.9rem;background:none;border:0;color:var(--muted);
  padding:5px 9px;border-radius:5px;cursor:pointer;letter-spacing:.005em;
}
.nav-links button:hover{color:var(--head);background:var(--surface)}
@media (max-width:600px){
  .nav-in{flex-wrap:wrap;row-gap:2px}
  .nav-links{margin-left:0;flex-basis:100%;justify-content:flex-start}
}
.nav-links button[aria-current="page"]{color:var(--accent);font-weight:500;background:var(--accent-wash)}
#modeBtn{width:31px;height:31px;padding:0;display:grid;place-items:center;font-size:.95rem;border:1px solid var(--rule);margin-left:6px}

.page{padding:44px 0 76px;animation:fade .3s ease}
@keyframes fade{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .page{animation:none}
  *{transition-duration:.001ms!important}
}

/* ---------- shared type ---------- */
.eyebrow{
  font-family:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);
}
h1.title{font-size:2.5rem;line-height:1.12;letter-spacing:-.022em;font-weight:700;margin:8px 0 0}
.lede{color:var(--muted);font-size:1.06rem;max-width:62ch;margin:12px 0 0}
h2.sec{
  font-size:.94rem;font-weight:500;letter-spacing:.02em;color:var(--head);
  display:flex;align-items:center;gap:11px;margin:0 0 18px;
}
h2.sec::before{
  content:"";width:11px;height:12px;flex:none;background:var(--accent);
  clip-path:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%);
}
h2.sec::after{content:"";flex:1;height:1px;background:var(--rule)}
.block{margin-top:52px}
.rule{border:0;border-top:1px solid var(--rule);margin:52px 0}
p{margin:0 0 1em}
.note{
  font-size:.85rem;color:var(--muted);background:var(--surface);
  border-left:2px solid var(--accent);padding:11px 14px;border-radius:0 5px 5px 0;margin:20px 0 0;
}

/* ---------- figure plate ---------- */
.plate{
  background:var(--plate);border:1px solid var(--rule);border-radius:9px;
  padding:12px;overflow:hidden;box-shadow:var(--shadow);
}
.plate img{border-radius:3px;width:100%}
figure{margin:0}
figcaption{font-size:.82rem;color:var(--muted);margin-top:9px;line-height:1.5}

/* ---------- about hero ---------- */
.hero{display:grid;grid-template-columns:1fr 168px;gap:34px;align-items:start}
.hero-mark{
  width:168px;border-radius:20px;box-shadow:var(--shadow);
}
.tagline{
  font-family:"Roboto Slab",Georgia,serif;font-size:1.12rem;line-height:1.45;
  color:var(--head);margin:16px 0 0;max-width:26ch;
}
.tagline em{font-style:normal;color:var(--accent)}
.affil{margin-top:14px;font-size:.95rem;color:var(--muted)}
.social{display:flex;gap:7px;flex-wrap:wrap;margin-top:20px}
.social a{
  font-family:"JetBrains Mono",monospace;font-size:.74rem;letter-spacing:.04em;
  border:1px solid var(--rule);border-radius:5px;padding:5px 10px;color:var(--muted);background:var(--surface);
}
.social a:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-wash)}

/* ---------- two-driver strip ---------- */
.drivers{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:22px}
.driver{border:1px solid var(--rule);border-radius:9px;padding:17px 18px;background:var(--surface)}
.driver h3{font-size:1rem;margin-bottom:5px}
.driver .k{font-family:"JetBrains Mono",monospace;font-size:.68rem;letter-spacing:.13em;text-transform:uppercase;color:var(--accent);display:block;margin-bottom:7px}
.driver p{font-size:.9rem;color:var(--muted);margin:0}
.arrowto{
  text-align:center;font-family:"Roboto Slab",Georgia,serif;font-size:1.02rem;color:var(--head);
  margin-top:14px;padding:11px;border-radius:9px;background:linear-gradient(90deg,var(--accent-wash),transparent 70%);
  border:1px solid var(--rule);
}
.arrowto b{color:var(--accent)}

/* ---------- news ---------- */
.rows{display:flex;flex-direction:column}
.row{
  display:grid;grid-template-columns:104px 1fr;gap:18px;
  padding:13px 0;border-bottom:1px solid var(--rule-soft);align-items:start;
}
.row:last-child{border-bottom:0}
.row .d{
  font-family:"JetBrains Mono",monospace;font-size:.76rem;color:var(--muted);
  padding-top:3px;font-variant-numeric:tabular-nums;letter-spacing:.01em;
}
.row .t{font-size:.95rem}
.row .t small{display:block;color:var(--muted);font-size:.83rem;margin-top:2px}

/* ---------- news stream: one descending list, thumbnail hangs right ---------- */
.news-list .row .t{display:flex;gap:18px;align-items:flex-start}
.ntxt{flex:1;min-width:0}
.nthumb{
  width:154px;flex:none;aspect-ratio:3/2;object-fit:cover;
  border-radius:7px;border:1px solid var(--rule);
}

/* ---------- stat cards ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.cards.four{grid-template-columns:repeat(4,1fr);margin:18px 0 6px}
.card{border:1px solid var(--rule);border-radius:9px;padding:15px 16px;background:var(--surface)}
.card .v{font-family:"Roboto Slab",Georgia,serif;font-size:1.72rem;font-weight:700;color:var(--accent);line-height:1;font-variant-numeric:tabular-nums}
.card .l{font-size:.79rem;color:var(--muted);margin-top:6px;line-height:1.4}

/* ---------- scale ladder ---------- */
.ladder{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:20px}
.rung{border:1px solid var(--rule);border-radius:9px;padding:14px;background:var(--surface);position:relative}
.rung .hex{
  width:16px;height:18px;background:var(--accent);opacity:.9;
  clip-path:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%);
  display:grid;place-items:center;margin-bottom:9px;
}
.rung .sc{font-family:"JetBrains Mono",monospace;font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.rung h4{font-size:.92rem;margin:3px 0 6px}
.rung .codes{font-family:"JetBrains Mono",monospace;font-size:.72rem;color:var(--accent);line-height:1.6}

/* ---------- research areas ---------- */
.area{border-top:1px solid var(--rule);padding-top:26px;margin-top:34px}
.area:first-child{border-top:0;margin-top:0;padding-top:0}
.area-head{display:flex;align-items:baseline;gap:12px;margin-bottom:9px}
.area-num{
  font-family:"JetBrains Mono",monospace;font-size:.78rem;color:var(--accent);
  border:1px solid var(--rule);border-radius:4px;padding:1px 6px;flex:none;
}
.area h3{font-size:1.24rem;letter-spacing:-.012em}
.area p{font-size:.96rem;color:var(--ink);max-width:64ch}
.area .keys{display:flex;flex-wrap:wrap;gap:6px;margin:12px 0 16px}
.key{
  font-family:"JetBrains Mono",monospace;font-size:.71rem;color:var(--muted);
  border:1px solid var(--rule);border-radius:20px;padding:3px 10px;background:var(--surface);
}

/* ---------- people ---------- */
.people{display:grid;grid-template-columns:repeat(4,1fr);gap:16px 14px}
.person{text-align:left}
.person img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:9px;border:1px solid var(--rule)}
.person .n{font-family:"Roboto Slab",Georgia,serif;font-size:.92rem;font-weight:500;color:var(--head);margin-top:9px}
.person .n span{font-weight:400;color:var(--muted);font-size:.82rem}
.person .r{font-size:.76rem;color:var(--muted);margin-top:1px}
.pi{display:grid;grid-template-columns:186px 1fr;gap:26px;align-items:start}
.pi img{width:186px;aspect-ratio:1;object-fit:cover;border-radius:11px;border:1px solid var(--rule)}
.pi h3{font-size:1.36rem;letter-spacing:-.015em}
.pi .role{color:var(--accent);font-size:.9rem;margin-top:3px;font-family:"JetBrains Mono",monospace;letter-spacing:.02em}
.pi p{font-size:.95rem;margin-top:12px}
.pi .where{font-size:.82rem;color:var(--muted);margin-top:5px}
.pi .edu{list-style:none;margin:16px 0 0;padding:12px 0 0;border-top:1px solid var(--rule);font-size:.88rem}
.pi .edu li{display:grid;grid-template-columns:3.2em 1fr;gap:10px;margin-top:5px}
.pi .edu .y{font-family:"JetBrains Mono",monospace;color:var(--accent);font-size:.82rem;padding-top:1px}
.pi .edu .sub{display:block;color:var(--muted);font-size:.8rem}
.person .r.w{opacity:.78;margin-top:2px}
.person .mono{
  width:100%;aspect-ratio:1;border-radius:9px;border:1px dashed var(--rule);
  display:grid;place-items:center;background:var(--surface-2);
  font-family:"Roboto Slab",Georgia,serif;font-size:1.5rem;color:var(--muted);letter-spacing:.04em;
}
.tags{display:flex;flex-wrap:wrap;gap:4px;margin-top:7px}
.tag{
  font-family:"JetBrains Mono",monospace;font-size:.63rem;letter-spacing:.02em;
  padding:2px 6px;border-radius:4px;border:1px solid var(--rule);color:var(--muted);
  white-space:nowrap;line-height:1.5;
}
.tag[data-k="m"]{color:var(--accent);border-color:color-mix(in srgb,var(--accent) 45%, transparent)}
.tag[data-k="s"]{background:var(--surface-2)}
.tag[data-k="d"]{border-style:dashed}

/* ---------- facility ---------- */
h3.sub{
  font-family:"JetBrains Mono",monospace;font-size:.72rem;letter-spacing:.09em;
  text-transform:uppercase;color:var(--muted);margin:26px 0 10px;
}
ul.plain{list-style:none;padding:0;margin:0;display:grid;gap:9px}
ul.plain li{
  font-size:.9rem;color:var(--muted);padding-left:15px;position:relative;line-height:1.6;
}
ul.plain li::before{
  content:"";position:absolute;left:0;top:.62em;width:5px;height:5px;
  border-radius:50%;background:var(--accent);
}
ul.plain b{color:var(--head);font-weight:500}
.sw{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:18px}
.swcell{
  border:1px solid var(--rule);border-radius:9px;background:var(--plate);
  height:88px;display:grid;place-items:center;padding:14px;
}
.swcell img{max-height:52px;width:auto;object-fit:contain}
.swname{text-align:center;font-family:"JetBrains Mono",monospace;font-size:.7rem;color:var(--muted);margin-top:6px}

/* ---------- gallery ---------- */
.ntxt a{color:inherit;text-decoration:none;border-bottom:1px solid color-mix(in srgb,var(--accent) 55%, transparent)}
.ntxt a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.gal{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.gal figure{border:1px solid var(--rule);border-radius:9px;overflow:hidden;background:var(--surface)}
.gal img{aspect-ratio:3/2;object-fit:cover;width:100%;transition:transform .35s ease}
.gal figure:hover img{transform:scale(1.035)}
.gal figcaption{padding:9px 11px 11px;margin:0;font-size:.78rem}
.gal figcaption b{display:block;color:var(--ink);font-weight:500;font-size:.82rem}
.gal figure{position:relative;cursor:zoom-in}
.gal figure:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.gal .count{
  position:absolute;top:8px;right:8px;min-width:22px;height:22px;padding:0 6px;
  border-radius:11px;background:rgba(0,0,0,.62);color:#fff;backdrop-filter:blur(2px);
  font-family:"JetBrains Mono",monospace;font-size:.68rem;
  display:grid;place-items:center;pointer-events:none;
}

/* ---------- lightbox ---------- */
.lb[hidden]{display:none}
.lb{
  position:fixed;inset:0;z-index:60;background:rgba(8,12,13,.93);
  display:grid;grid-template-columns:64px 1fr 64px;align-items:center;
  padding:26px 0 0;
}
.lb img{
  grid-column:2;justify-self:center;max-width:min(100%,1080px);
  max-height:calc(100vh - 128px);object-fit:contain;border-radius:6px;
}
.lb-nav,.lb-x{
  background:none;border:0;color:rgba(255,255,255,.62);cursor:pointer;
  font-family:inherit;line-height:1;padding:10px;transition:color .15s ease;
}
.lb-nav:hover,.lb-x:hover{color:#fff}
.lb-nav{font-size:2.6rem;justify-self:center}
.lb-nav[hidden]{visibility:hidden;display:block}
.lb-nav.prev{grid-column:1}
.lb-nav.next{grid-column:3}
.lb-x{position:absolute;top:14px;right:20px;font-size:2rem}
.lb-cap{
  position:absolute;left:0;right:0;bottom:0;padding:16px 22px 20px;
  display:flex;gap:14px;justify-content:center;align-items:baseline;
  color:rgba(255,255,255,.8);font-size:.85rem;
}
.lb-cap .lb-n{font-family:"JetBrains Mono",monospace;font-size:.76rem;color:rgba(255,255,255,.5)}
@media (max-width:700px){
  .lb{grid-template-columns:44px 1fr 44px}
  .lb-nav{font-size:2rem}
}

/* ---------- publications ---------- */
.filters{display:flex;gap:7px;flex-wrap:wrap;margin:20px 0 8px}
.filters button{
  font:inherit;font-size:.8rem;background:var(--surface);border:1px solid var(--rule);
  color:var(--muted);padding:5px 12px;border-radius:20px;cursor:pointer;
}
.filters button:hover{color:var(--head);border-color:var(--muted)}
.filters button[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:var(--bg);font-weight:500}
.year-row{display:grid;grid-template-columns:64px 1fr;gap:16px;padding:22px 0;border-bottom:1px solid var(--rule-soft)}
.year-tag{
  font-family:"JetBrains Mono",monospace;font-size:.8rem;color:var(--accent);
  padding-top:4px;font-variant-numeric:tabular-nums;
}
.entry{display:grid;grid-template-columns:216px 1fr;gap:20px;padding:16px 0;align-items:start}
.thumb{border:1px solid var(--rule);border-radius:6px;overflow:hidden;background:var(--surface)}
.thumb svg{display:block;width:100%;height:auto}
.thumb img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover;
  object-position:center top;background:#fff;cursor:zoom-in;transition:opacity .15s ease}
.thumb img:hover{opacity:.86}
.entry-title{font-size:.95rem;line-height:1.45;color:var(--head);font-weight:500}
.pub-no{display:inline-block;margin-right:8px;padding:0 6px;border:1px solid var(--rule);border-radius:4px;font-size:.78rem;font-variant-numeric:tabular-nums;color:var(--muted, #888);vertical-align:1px}
.entry-authors{font-size:.83rem;color:var(--muted);margin-top:3px}
.entry-authors sup{font-size:.72em;color:var(--accent);padding-left:.5px}
.legend{
  font-size:.78rem;color:var(--muted);margin:-4px 0 14px;
}
.legend .me{color:var(--accent);font-weight:500}
.legend sup{color:var(--accent)}
.entry-authors .me{color:var(--accent);font-weight:500}
.entry-venue{font-size:.84rem;color:var(--ink);margin-top:2px}
.pills{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
.pill{
  font-family:"JetBrains Mono",monospace;font-size:.68rem;letter-spacing:.02em;
  border:1px solid var(--rule);border-radius:20px;padding:2px 9px;color:var(--muted);
  background:var(--surface);cursor:pointer;font-weight:400;
}
a.pill:hover,button.pill:hover{border-color:var(--accent);color:var(--accent)}
.pill.flat{cursor:default}
.details{display:none;font-size:.8rem;color:var(--muted);margin-top:9px;padding:9px 12px;background:var(--surface);border-radius:6px}
.details.open{display:block}
.details b{color:var(--ink);font-weight:500}

footer.foot{
  border-top:1px solid var(--rule);padding:26px 0 40px;margin-top:20px;
  font-size:.82rem;color:var(--muted);text-align:center;
}
footer.foot img{width:26px;height:26px;border-radius:6px;margin:0 auto 10px}

@media (max-width:760px){
  .hero{grid-template-columns:1fr;gap:22px}
  .hero-mark{width:124px}
  .drivers,.cards,.gal,.ladder,.sw{grid-template-columns:1fr 1fr}
  .people{grid-template-columns:repeat(3,1fr)}
  .entry{grid-template-columns:150px 1fr;gap:14px}
  .pi{grid-template-columns:1fr;gap:16px}
  h1.title{font-size:2rem}
  .nthumb{width:118px}
}
@media (max-width:480px){
  .drivers,.cards,.gal,.ladder{grid-template-columns:1fr}
  .news-list .row .t{flex-direction:column-reverse;gap:10px}
  .nthumb{width:100%}
  .people,.sw{grid-template-columns:1fr 1fr}
  .row{grid-template-columns:1fr;gap:2px}
  .year-row{grid-template-columns:1fr;gap:4px}
  .entry{grid-template-columns:60px 1fr;gap:11px}
}

/* ---------- research showcase (paper figure mosaic) ---------- */
.showcase{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:4px}
.showcase .tile{position:relative;display:block;aspect-ratio:4/3;overflow:hidden;border-radius:7px;
  background:#fff;border:1px solid var(--rule);box-shadow:var(--shadow)}
.showcase .tile.hero{grid-column:span 2;grid-row:span 2}
.showcase .tile img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.showcase .tile:hover img{transform:scale(1.06)}
.showcase .tile span{position:absolute;left:0;right:0;bottom:0;padding:16px 9px 6px;
  font-family:"JetBrains Mono",monospace;font-size:.66rem;letter-spacing:.02em;color:#fff;
  background:linear-gradient(transparent,rgba(0,0,0,.72))}
.showcase .tile.hero span{font-size:.78rem;padding:22px 12px 9px}
@media (max-width:640px){.showcase{grid-template-columns:repeat(2,1fr)}}
@media (prefers-reduced-motion:reduce){.showcase .tile img{transition:none}}

/* ---------- research topics (figure left, EN + KO text right) — 2026-10-12 ---------- */
.topics-intro{font-size:1rem;max-width:none;color:var(--ink);margin:0 0 .7em}
.topics-intro.ko{color:var(--muted);font-size:.95rem;margin-bottom:8px}
.topic{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:14px 40px;align-items:start;
  border-top:1px solid var(--rule);padding-top:34px;margin-top:38px}
.topic-fig{margin:0}
.topic-fig img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block;background:#fff;
  border:1px solid var(--rule);border-radius:9px;box-shadow:var(--shadow)}
.topic-fig figcaption{font-family:"JetBrains Mono",monospace;font-size:.7rem;color:var(--muted);margin-top:7px}
.topic-num{font-family:"JetBrains Mono",monospace;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--accent);margin:0 0 8px;display:flex;gap:9px;align-items:center}
.topic-num span{border:1px solid var(--rule);border-radius:4px;padding:1px 6px;letter-spacing:0}
.topic h3{font-size:1.3rem;line-height:1.3;letter-spacing:-.012em;margin:0}
.topic .topic-ko{font-size:1rem;font-weight:500;color:var(--head);margin:4px 0 16px}
.topic-body p{font-size:.95rem}
.topic-body p.ko{color:var(--muted);font-size:.92rem;line-height:1.85;word-break:keep-all}
.topic-body b{color:var(--head);font-weight:600}
.topic .showcase.compact{grid-column:1/-1;margin-top:10px}
@media (max-width:820px){.topic{grid-template-columns:1fr}}