@font-face{font-family:Parkinsans;src:url('../fonts/parkinsans-400.ttf') format('truetype');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:Parkinsans;src:url('../fonts/parkinsans-500.ttf') format('truetype');font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:Parkinsans;src:url('../fonts/parkinsans-600.ttf') format('truetype');font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:Parkinsans;src:url('../fonts/parkinsans-700.ttf') format('truetype');font-weight:700;font-style:normal;font-display:swap}
:root{--paper:#faf7f3;--surface:#fffdfb;--ink:#332d30;--muted:#71666b;--wine:#782c43;--wine-dark:#592033;--rose:#f0e4e5;--line:#e6dcda;--radius:22px;--font:Parkinsans,system-ui,sans-serif;color-scheme:light}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:38px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
::selection{background:#e7c9d0;color:var(--wine-dark)}
a{color:var(--wine);text-decoration:none;text-underline-offset:4px}
a:hover{text-decoration:underline}
button,a{-webkit-tap-highlight-color:transparent}
a:focus-visible,button:focus-visible{outline:2px solid var(--wine);outline-offset:5px}
button{font:inherit;cursor:pointer}
img{max-width:100%;display:block}
strong{font-weight:600}
sup{line-height:0;font-size:.73em}
p,h1,h2,h3,h4{margin-top:0}
p{margin-bottom:16px}
.wrap{width:min(1080px,calc(100% - 96px));margin-inline:auto}
.icon-library{position:absolute;width:0;height:0;overflow:hidden}
.icon{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;vertical-align:middle}
.skip-link{position:absolute;left:16px;top:-90px;z-index:10;background:var(--wine);color:white;padding:10px 18px;border-radius:12px}
.skip-link:focus{top:12px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
[hidden]{display:none!important}
.site-header{display:flex;align-items:center;justify-content:space-between;padding-block:28px 22px;border-bottom:1px solid var(--line)}
.wordmark{font-size:28px;font-weight:600;letter-spacing:-2px;color:var(--wine);line-height:1}
.wordmark:hover{text-decoration:none}
.wordmark span{color:#b9868f}
nav{display:flex;gap:29px;align-items:center;font-size:12px;font-weight:500}
nav a{color:var(--muted)}
nav a:hover{color:var(--wine)}
.nav-contact{display:flex;align-items:center;gap:9px;color:var(--wine);background:var(--rose);border-radius:50px;padding:8px 15px}
.nav-contact .icon{width:14px;height:14px}
.hero{display:grid;grid-template-columns:220px minmax(0,1fr);gap:64px;align-items:start;padding-top:66px;padding-bottom:14px}
.portrait-column{align-self:start;padding-top:8px}
.portrait-frame{background:#e7dddb;border-radius:22px;overflow:hidden;border:6px solid var(--surface);box-shadow:0 12px 32px #5b243b0b}
.portrait{width:100%;height:264px;object-fit:cover;object-position:50% 50%}
.location{display:flex;justify-content:center;align-items:center;gap:7px;margin:16px 0 0;font-size:13px;color:var(--muted)}
.location .icon{width:13px;height:13px;stroke-width:1.6}
.eyebrow{font-size:13px;font-weight:500;letter-spacing:1.35px;text-transform:uppercase;color:var(--wine);margin-bottom:10px}
h1{font-size:clamp(36px,4.1vw,51px);font-weight:600;letter-spacing:-2.4px;line-height:1.18;margin-bottom:15px;color:var(--wine-dark)}
.name-dot{color:#b9868f}

.intro>p{color:#655a60;font-size:16px;line-height:1.9;margin-bottom:13px}
.intro strong{color:var(--ink)}
.intro>p a{border-bottom:1px solid #dfbfc6}
.intro>p a:hover{text-decoration:none;border-color:var(--wine)}
.social-links{display:flex;gap:9px;flex-wrap:wrap;margin-top:24px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid #ded0d1;border-radius:50px;min-height:40px;padding:7px 15px;font-size:11px;font-weight:500;background:var(--surface);color:var(--wine);transition:background .2s,border-color .2s,transform .2s}
.button:hover{background:var(--rose);border-color:#c49fa9;transform:translateY(-2px);text-decoration:none}
.button .icon{width:15px;height:15px}
.button-primary{background:var(--wine);color:#fff;border-color:var(--wine)}
.button-primary:hover{background:var(--wine-dark);border-color:var(--wine-dark)}

.section{padding-top:62px}
.section-heading{display:flex;justify-content:space-between;align-items:baseline;gap:20px;margin-bottom:25px}
h2{font-size:29px;letter-spacing:-1.1px;line-height:1.35;font-weight:500;margin-bottom:0}
h2>span{color:#af7b88}

.text-link{font-size:11px;font-weight:500;display:inline-flex;gap:7px;align-items:center;white-space:nowrap}
.text-link .icon{width:14px;height:14px}
.news-list{list-style:none;margin:0;padding:10px 25px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}
.news-list li{display:grid;grid-template-columns:90px minmax(0,1fr);gap:16px;align-items:baseline;padding:16px 0}
.news-list li+li{border-top:1px solid #eee5e1}
.news-list time{font-size:13px;font-weight:500;color:var(--wine)}
.news-list p{font-size:15px;margin:0;color:#635960}
.news-list p strong{color:var(--ink)}
.news-toggle{display:flex;align-items:center;gap:7px;margin:10px 0 0 auto;padding:8px 10px;min-height:40px;border:0;border-radius:10px;background:transparent;color:var(--wine);font-size:11px;font-weight:500}
.news-toggle:hover{background:var(--rose)}
.news-toggle .icon{width:14px;height:14px}
.news-toggle[aria-expanded="true"] .icon{transform:rotate(180deg)}
@media print{.news-toggle{display:none}.news-list li[hidden]{display:grid!important}}
.publication-toolbar{display:flex;flex-direction:column;align-items:flex-start;gap:15px;margin-bottom:8px}
.filters{display:flex;gap:5px;padding:4px;background:#eee7e3;border-radius:50px;max-width:100%;flex-wrap:wrap}
.filter{color:var(--muted);border:0;background:transparent;border-radius:50px;padding:6px 13px;font-size:11px;font-weight:500;transition:background .15s,color .15s}
.filter span{font-size:9px;margin-left:4px;opacity:.8}
.filter:hover{color:var(--wine)}
.filter.active{background:var(--wine);color:#fff}
.author-key{font-size:12px;color:var(--muted);margin:0}
.paper{display:grid;grid-template-columns:232px minmax(0,1fr);gap:30px;padding:28px 0;border-bottom:1px solid var(--line);scroll-margin-top:35px;align-items:center}
.paper:last-child{border-bottom:0;padding-bottom:0}
.paper-visual{aspect-ratio:1.49;display:flex;flex-direction:column;border-radius:18px;overflow:hidden}
.figure-visual{background:#fff;border:1px solid var(--line);justify-content:space-between;color:var(--muted);transition:border-color .2s}
.figure-visual:hover{border-color:#b58091;text-decoration:none}
.figure-visual img{width:100%;height:calc(100% - 32px);object-fit:contain;padding:12px 10px 7px}
.figure-visual>span{font-size:10px;display:flex;align-items:center;justify-content:space-between;padding:5px 13px;background:#f5efec;height:32px;font-weight:500;color:#805763}
.figure-visual .icon{width:13px;height:13px}
.preview-action{display:inline-flex;align-items:center;gap:5px;font-size:9px}
.figure-visual[data-preview="image"]{cursor:zoom-in}
body.preview-open{overflow:hidden}
.media-dialog{width:min(1120px,calc(100% - 40px));max-width:none;max-height:calc(100dvh - 40px);padding:0;border:1px solid var(--line);border-radius:22px;background:var(--surface);color:var(--ink);box-shadow:0 24px 90px #26101c45;overflow:auto}
.media-dialog::backdrop{background:#271d27bf;backdrop-filter:blur(5px)}
.preview-panel{padding:18px 22px 20px}
.preview-header{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:14px}
.preview-header h2{font-size:19px;font-weight:500;letter-spacing:-.5px;color:var(--wine-dark)}
.preview-close{width:40px;height:40px;display:grid;place-items:center;flex-shrink:0;border:1px solid var(--line);border-radius:50%;background:var(--paper);color:var(--wine)}
.preview-close:hover{background:var(--rose)}
.preview-close .icon{width:18px;height:18px}
.preview-stage{display:flex;align-items:center;justify-content:center;min-height:100px;background:white;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.preview-image,.preview-video{display:block;width:100%;max-height:calc(100dvh - 230px);object-fit:contain}
.preview-video{aspect-ratio:16/7;background:#0c1017}
#preview-caption{margin:14px 0 0;font-size:14px;line-height:1.7;color:var(--muted)}
.preview-error{margin:12px 0 0;font-size:14px;color:var(--wine)}
@media(max-width:720px){.media-dialog{width:calc(100% - 24px);max-height:calc(100dvh - 24px);border-radius:18px}.preview-panel{padding:12px}.preview-header{margin-bottom:10px;gap:10px}.preview-header h2{font-size:16px}.preview-image,.preview-video{max-height:calc(100dvh - 210px)}#preview-caption{font-size:12px;margin-top:12px}}
@media print{.media-dialog{display:none!important}body.preview-open{overflow:visible}}
.type-visual{padding:21px 22px;justify-content:space-between}
.spatial-visual{background:#eae1df;color:#704c56}
.fl4n-visual{background:#71374a;color:#f8edec}
.visual-kicker{font-size:8px;letter-spacing:.1px;opacity:.85}
.visual-title{font-size:18px;font-weight:500;line-height:1.4;letter-spacing:-.5px}
.visual-title-large{font-size:38px;line-height:1;letter-spacing:-1.5px;font-weight:600}
.visual-bottom{font-size:8px;opacity:.85}
.paper-meta{display:flex;flex-wrap:wrap;align-items:center;gap:9px;margin-bottom:10px;font-size:12px;color:var(--muted)}
.venue{background:var(--rose);color:var(--wine);padding:3px 9px;border-radius:50px;font-weight:600}
.muted-venue{background:#eee8e4;color:#70616a;font-weight:500}
.paper h3{font-size:17px;font-weight:600;letter-spacing:-.3px;line-height:1.55;margin-bottom:10px}
.paper h3 a{color:var(--ink)}
.paper h3 a:hover{color:var(--wine)}
.authors{font-size:14px;line-height:1.9;color:var(--muted);margin-bottom:0}
.authors strong{color:var(--wine);font-weight:600}
.paper-links{display:flex;flex-wrap:wrap;gap:9px;margin-top:14px}
.paper-links a,.paper-link-pending{display:flex;align-items:center;gap:5px;font-size:11px;font-weight:500;border:1px solid #ded0d1;border-radius:50px;padding:3px 10px}
.paper-link-pending{color:var(--muted);border-style:dashed}
.paper-links a:hover{background:var(--rose);text-decoration:none}
.paper-links .icon{width:11px;height:11px}
.background-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:70px}
.background-heading{margin-bottom:25px}

.timeline{padding-left:20px;border-left:1px solid #d9c4c9;margin-left:4px}
.timeline-item{position:relative;margin-bottom:29px}
.timeline-item:last-child{margin-bottom:0}
.timeline-item::before{position:absolute;content:"";left:-25px;top:7px;width:9px;height:9px;border-radius:50%;background:#ae7e8b;border:2px solid var(--paper)}
.date{font-size:12px;color:var(--muted);font-weight:400;margin-bottom:6px;white-space:nowrap}
.timeline h3{font-size:15px;line-height:1.55;font-weight:500;letter-spacing:-.25px;margin-bottom:4px}
.timeline p:not(.date){font-size:14px;margin-bottom:4px;line-height:1.8}
/* Keep official logo artwork unchanged; viewport the emblem in wide signatures. */
.institution{display:grid;grid-template-columns:24px minmax(0,1fr);gap:10px;align-items:start;margin-top:9px}
.institution-logo{display:block;width:24px;height:24px;overflow:hidden;flex-shrink:0}
.institution-logo img{display:block;width:100%;height:100%;object-fit:contain}
.institution-logo--kaist-ai{border-radius:5px}
.institution-logo--daewon img{width:162px;height:24px;max-width:none;object-fit:fill}
.institution-logo--kist img{width:96px;height:auto;max-width:none;transform:translate(-1.8px,-4.8px)}
.institution-copy{min-width:0}
.timeline .detail{color:var(--muted)}
.timeline .experience-copy{padding-top:8px;color:#62575e;max-width:390px}

.site-footer{display:flex;justify-content:space-between;align-items:center;gap:20px;padding-block:23px 30px;font-size:10px;color:var(--muted)}
.home-page .site-footer{display:grid;grid-template-columns:1fr auto 1fr;margin-top:56px;border-top:1px solid var(--line)}
.home-page .site-footer>a:last-child{justify-self:end}
.site-footer p{margin:0}
.site-footer a{color:var(--muted)}
.footer-socials{display:flex;align-items:center;gap:8px}
.footer-socials a{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;color:var(--wine);transition:background .2s}
.footer-socials a:hover{background:var(--rose);text-decoration:none}
.footer-socials .icon{width:17px;height:17px}

@media(min-width:1440px){.hero{padding-top:76px;padding-bottom:24px}.section{padding-top:72px}}
@media(max-width:1000px){.wrap{width:calc(100% - 64px)}.hero{grid-template-columns:220px minmax(0,1fr);gap:38px}.portrait{height:275px}h1{font-size:40px}.social-links{gap:7px}.button{padding-inline:12px}.paper{grid-template-columns:205px minmax(0,1fr);gap:24px}.background-grid{gap:40px}.background-heading{font-size:clamp(23px,2.9vw,29px)}}
@media(max-width:720px){.wrap{width:calc(100% - 42px)}.site-header{padding-block:23px 19px}.wordmark{font-size:25px}nav{gap:14px;font-size:10px}.nav-contact{display:flex;gap:5px;padding:8px 10px}.nav-contact .icon{width:12px;height:12px}.home-page .site-footer{margin-top:40px;grid-template-columns:1fr auto;row-gap:10px}.footer-socials{grid-column:1/-1;grid-row:2;justify-self:center}.hero{grid-template-columns:1fr;gap:27px;padding-top:36px;padding-bottom:14px}.portrait-column{width:182px;padding-top:0}.portrait-frame{border-radius:18px;border-width:4px}.portrait{height:194px}.location{font-size:10px;margin-top:10px;justify-content:flex-start;padding-left:10px}.intro h1{font-size:41px;letter-spacing:-2px;margin-bottom:13px}.intro .eyebrow{font-size:12px}.intro>p{font-size:15px;line-height:1.9}.social-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));max-width:280px;gap:8px;margin-top:22px}.button{font-size:10px;padding:7px 12px;min-height:38px}.button .icon{width:14px;height:14px}.section{padding-top:40px}h2{font-size:25px;letter-spacing:-.9px}.section-heading{gap:12px;margin-bottom:19px}.text-link{font-size:9px}.news-list{padding:4px 17px;border-radius:18px}.news-list li{grid-template-columns:1fr;gap:4px;padding:15px 0}.news-list time{font-size:10px}.news-list p{font-size:14px}.publication-toolbar{gap:13px}.filters{border-radius:18px;gap:2px}.filter{font-size:11px;padding:6px 8px}.filter span{display:none}.author-key{font-size:9px}.paper{grid-template-columns:1fr;gap:17px;padding-block:25px}.paper-visual{width:100%;height:160px;aspect-ratio:auto;border-radius:16px}.figure-visual img{padding:10px 24px 4px}.type-visual{padding:18px 23px}.visual-kicker,.visual-bottom{font-size:9px}.visual-title{font-size:22px}.visual-title-large{font-size:40px}.paper h3{font-size:15px;line-height:1.6}.paper-meta{font-size:9px;gap:6px;margin-bottom:10px}.authors{font-size:13.5px;line-height:1.9}.paper-links :is(a,.paper-link-pending){font-size:10px;min-height:34px;padding-inline:12px}.background-grid{grid-template-columns:1fr;gap:40px}.background-heading{font-size:25px;margin-bottom:19px}.timeline h3{font-size:14px}.timeline p:not(.date){font-size:13px}.timeline-item{margin-bottom:24px}.site-footer{flex-wrap:wrap;font-size:9px;row-gap:8px;padding-block:21px}}
/* Give compact mobile controls enough room for a fingertip. */
@media(max-width:720px){
 .button,.news-toggle,.filter,.paper-links :is(a,.paper-link-pending){min-height:44px}
 .filter{min-width:44px}
 .footer-socials a,.preview-close{width:44px;height:44px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important}}
@media print{body{background:white;color:#222;font-size:10pt}.wrap{width:100%}.site-header,.filters,.skip-link,.site-footer,.portrait-column{display:none}.hero{display:block;padding:0}.section{padding-top:24px}.paper{break-inside:avoid;grid-template-columns:150px 1fr;padding-block:16px}.paper-visual{height:100px}.background-grid{gap:25px}.news-list{background:white}a{color:inherit}.paper[hidden]{display:grid!important}}