@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Noto+Sans+KR:wght@300;400;500;600;700&family=Source+Serif+4:opsz,wght@8..60,500;8..60,600&display=swap');
:root{--paper:#f7f5ef;--ink:#181816;--muted:#747169;--line:#d5d0c5;--soft:#ede9df;--dark:#1c1d1c;--accent:#8a3f34;--serif:"Source Serif 4",Georgia,serif;--sans:"DM Sans","Noto Sans KR",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);line-height:1.65}a{color:inherit;text-decoration:none}button,input,select{font:inherit}
.site-header{position:sticky;top:0;z-index:50;height:70px;display:flex;align-items:center;justify-content:space-between;padding:0 clamp(22px,5vw,78px);border-bottom:1px solid rgba(24,24,22,.14);background:rgba(247,245,239,.94);backdrop-filter:blur(14px)}
.brand{display:flex;align-items:baseline;gap:10px}.brand-serif{font:600 22px/1 var(--serif);letter-spacing:.01em}.brand-lab{font-size:9px;letter-spacing:.16em;color:var(--accent);font-weight:700;text-transform:uppercase}nav{display:flex;gap:24px;font-size:12px;letter-spacing:.03em}nav a:hover{color:var(--accent)}.menu-btn{display:none;background:none;border:0;font-size:12px;text-transform:uppercase;letter-spacing:.08em}
.section{padding:110px clamp(24px,7vw,120px)}.hero{min-height:780px;display:grid;grid-template-columns:minmax(320px,.82fr) 1.18fr;gap:clamp(48px,8vw,120px);align-items:center;padding-top:90px}.portrait-wrap{max-width:480px}.portrait{width:100%;aspect-ratio:4/5;object-fit:cover;object-position:center 35%;display:block;filter:grayscale(100%);border:1px solid var(--line)}.portrait-caption{display:block;margin-top:10px;font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.eyebrow,.section-label{font-size:11px;letter-spacing:.18em;font-weight:700;color:var(--accent);text-transform:uppercase}.hero h1{margin:20px 0 10px;font:600 clamp(64px,7.5vw,124px)/.88 var(--serif);letter-spacing:-.055em}.hero h1 span{font-family:var(--sans);font-size:.34em;letter-spacing:.02em;font-weight:500;color:var(--muted)}.role{font-size:18px;margin:24px 0 0}.intro{font-size:18px;max-width:760px;color:#47453f;margin-top:30px}.quick-links{display:flex;gap:10px;flex-wrap:wrap;margin-top:36px}.quick-links a{border-bottom:1px solid var(--ink);padding:5px 0;margin-right:20px;font-size:12px}.quick-links a:hover{color:var(--accent);border-color:var(--accent)}
.academic-strip{display:grid;grid-template-columns:repeat(4,1fr);margin:0 clamp(24px,7vw,120px);border-block:1px solid var(--line)}.academic-strip div{padding:24px 20px 24px 0}.academic-strip div+div{border-left:1px solid var(--line);padding-left:24px}.academic-strip span{display:block;font-size:10px;text-transform:uppercase;letter-spacing:.12em;color:var(--muted)}.academic-strip strong{display:block;margin-top:6px;font:600 20px var(--serif)}
.section-intro{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:end;margin-top:18px;margin-bottom:56px}.section-intro h2,.about-grid h2,.archive-head h2{font:600 clamp(44px,5vw,72px)/1 var(--serif);letter-spacing:-.04em;margin:0}.section-intro p{margin:0;color:var(--muted);max-width:650px}.research-grid{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--ink)}.research-grid article{min-height:260px;padding:30px 34px 30px 0;border-bottom:1px solid var(--line)}.research-grid article:nth-child(even){border-left:1px solid var(--line);padding-left:34px}.research-grid article>span{font-size:10px;color:var(--accent);font-weight:700}.research-grid h3{font:600 30px/1.1 var(--serif);margin:28px 0 12px}.research-grid p{color:var(--muted);max-width:580px}
.selected-pubs{background:#efece4}.pub-list{border-top:1px solid var(--ink)}.pub-list article{display:grid;grid-template-columns:110px 1fr 120px;gap:28px;align-items:start;padding:24px 0;border-bottom:1px solid var(--line)}.pub-year{font-size:13px;color:var(--accent);font-weight:700}.pub-list h3{margin:0;font-size:20px;font-weight:600}.pub-list p{margin:6px 0 0;color:var(--muted);font-size:13px}.pub-type{justify-self:end;text-transform:uppercase;font-size:9px;letter-spacing:.12em;color:var(--muted)}
.writing-section{background:#fbfaf6}.writing-columns{display:grid;grid-template-columns:1.45fr .75fr;gap:70px}.column-head{display:flex;justify-content:space-between;align-items:baseline;border-top:1px solid var(--ink);padding:16px 0}.column-head h3{font:600 28px var(--serif);margin:0}.column-head span{font-size:10px;color:var(--muted);text-transform:uppercase;letter-spacing:.12em}.writing-list{display:flex;flex-direction:column}.writing-list a{display:grid;grid-template-columns:100px 1fr;gap:16px;padding:15px 0;border-bottom:1px solid var(--line)}.writing-list a span{font-size:10px;color:var(--muted)}.writing-list a strong{font-size:14px;font-weight:500}.writing-list a:hover strong{color:var(--accent)}.note-card{margin-top:40px;border-top:1px solid var(--ink);padding-top:16px}.note-card span{font-size:10px;text-transform:uppercase;letter-spacing:.12em;color:var(--accent);font-weight:700}.note-card p{font-size:13px;color:var(--muted)}
.trajectory-section{background:var(--soft)}.timeline{border-top:1px solid var(--ink)}.time-row{display:grid;grid-template-columns:140px 1fr;gap:30px;padding:24px 0;border-bottom:1px solid var(--line)}.time-row>span{font:600 22px var(--serif);color:var(--accent)}.time-row b{font-size:18px}.time-row p{margin:5px 0 0;color:var(--muted)}
.about-section{padding-top:120px;padding-bottom:120px}.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:90px;margin-top:24px}.about-lead{font:500 24px/1.35 var(--serif);max-width:620px}.about-grid>div:last-child{font-size:17px;color:#4b4943}
.archive-section{background:var(--dark);color:#f4f1e8}.section-label.light{color:#b9a79f}.archive-head{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:end;margin-top:20px}.archive-head p{color:#a7a49c}.archive-tools{display:flex;gap:10px;justify-content:flex-end}.archive-tools input,.archive-tools select{background:transparent;border:1px solid #565652;color:#eee;padding:11px 12px}.archive-tools option{color:#111}.archive-summary{display:flex;justify-content:space-between;border-block:1px solid #484844;margin-top:34px;padding:13px 0;font-size:10px;text-transform:uppercase;letter-spacing:.1em;color:#aaa79f}.archive-grid{display:grid;grid-template-columns:repeat(2,1fr)}.archive-card{padding:30px 30px 30px 0;border-bottom:1px solid #42423f;cursor:pointer}.archive-card:nth-child(even){border-left:1px solid #42423f;padding-left:30px}.archive-card .top{display:flex;justify-content:space-between;font-size:10px;color:#aaa79f;text-transform:uppercase;letter-spacing:.09em}.archive-card h3{font:600 27px/1.2 var(--serif);margin:20px 0 10px}.archive-card p{color:#aaa79f;font-size:13px}.tags{display:flex;gap:7px;flex-wrap:wrap;margin-top:16px}.tags span{border:1px solid currentColor;border-radius:999px;padding:4px 8px;font-size:9px;opacity:.75}
footer{display:flex;justify-content:space-between;gap:40px;padding:44px clamp(24px,7vw,120px);background:#121312;color:#ddd;font-size:11px}footer strong{font:600 20px var(--serif);display:block}footer span{display:block;color:#8e8e89;margin-top:5px}.footer-right{text-align:right}
dialog{width:min(760px,92vw);border:0;padding:44px;background:var(--paper);color:var(--ink)}dialog::backdrop{background:rgba(0,0,0,.72)}.close{position:absolute;right:18px;top:12px;border:0;background:none;font-size:28px}.dialog-kicker{font-size:10px;color:var(--accent);letter-spacing:.12em;text-transform:uppercase}dialog h2{font:600 42px/1.1 var(--serif);letter-spacing:-.03em}.dialog-section{margin-top:24px;border-top:1px solid var(--line);padding-top:15px}.dialog-section p{color:var(--muted)}
@media(max-width:950px){nav{display:none}.menu-btn{display:block}.hero{grid-template-columns:1fr;min-height:auto}.portrait-wrap{max-width:360px}.academic-strip{grid-template-columns:repeat(2,1fr)}.section-intro,.writing-columns,.about-grid,.archive-head{grid-template-columns:1fr}.research-grid{grid-template-columns:1fr}.research-grid article:nth-child(even){border-left:0;padding-left:0}.archive-grid{grid-template-columns:1fr}.archive-card:nth-child(even){border-left:0;padding-left:0}.pub-list article{grid-template-columns:70px 1fr}.pub-type{display:none}}
@media(max-width:600px){.section{padding:78px 20px}.site-header{padding:0 20px}.hero{padding-top:60px}.hero h1{font-size:66px}.academic-strip{margin:0 20px;grid-template-columns:1fr 1fr}.academic-strip div{padding:16px 10px 16px 0}.academic-strip div+div{padding-left:12px}.section-intro{gap:22px}.research-grid h3{font-size:25px}.writing-list a{grid-template-columns:1fr}.archive-tools{justify-content:flex-start;flex-direction:column}.archive-summary{display:block}.time-row{grid-template-columns:80px 1fr}.footer-right{text-align:left}footer{flex-direction:column}}

.applied-section{background:#f2eee5}
.single-intro{grid-template-columns:1fr;max-width:1080px}
.vertical-grid{grid-template-columns:1fr;gap:28px}
.platform-card{background:linear-gradient(180deg,rgba(255,255,255,.86) 0%,rgba(250,246,238,.96) 100%);border:1px solid #d8d1c4;border-radius:28px;padding:30px 32px 34px;display:flex;flex-direction:column;box-shadow:0 10px 30px rgba(40,30,10,.04)}
.featured-card{position:relative;overflow:hidden}
.featured-card:before{content:"";position:absolute;inset:0 auto auto 0;width:100%;height:6px;background:linear-gradient(90deg,var(--accent) 0%,rgba(141,89,57,.15) 100%)}
.platform-head{display:flex;justify-content:space-between;gap:20px;align-items:flex-start;margin-bottom:10px}
.platform-top{display:flex;align-items:center;gap:16px}
.platform-num{width:48px;height:48px;border:1px solid #d8d1c4;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font:600 18px/1 var(--serif);color:var(--accent);background:rgba(255,255,255,.82)}
.platform-type{font-size:10px;letter-spacing:.14em;color:var(--accent);font-weight:700;text-transform:uppercase}
.platform-badge{padding:10px 14px;border-radius:999px;background:#f5efe5;border:1px solid #ddd4c5;font-size:11px;letter-spacing:.08em;color:#7b5f48;text-transform:uppercase;white-space:nowrap}
.platform-main{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:28px;align-items:start}
.platform-summary h3{font:600 44px/1.05 var(--serif);margin:14px 0 14px;letter-spacing:-.035em}
.platform-lead{font-size:17px;line-height:1.9;color:#4c4943;max-width:760px;margin:0}
.platform-flow{margin-top:22px;padding:18px 20px;border:1px solid #ddd4c5;border-radius:20px;background:#faf7f1;display:grid;gap:8px}
.platform-flow strong{font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
.platform-flow span{font-size:14px;color:#48453f;line-height:1.8}
.platform-cols{display:grid;grid-template-columns:1fr;gap:16px;margin-top:0}
.platform-col{background:#f8f5ee;border:1px solid #ddd7cb;border-radius:22px;padding:20px 20px 18px}
.platform-cols h4{margin:0 0 12px;font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.platform-cols ul{margin:0;padding-left:18px;color:#57544e;font-size:14px;line-height:1.8}
.platform-cols li+li{margin-top:6px}
.rounded-principle{margin-top:36px;border:1px solid var(--ink);border-radius:28px;display:grid;grid-template-columns:220px 1fr;gap:28px;padding:26px 30px;background:#f8f5ee}
.rounded-principle span{font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);font-weight:700;display:block;padding-top:8px}
.rounded-principle p{font:500 clamp(24px,3vw,38px)/1.38 var(--serif);margin:0;max-width:1050px}
@media(max-width:1100px){.platform-main{grid-template-columns:1fr}.platform-cols{grid-template-columns:1fr 1fr}}
@media(max-width:760px){.platform-head{flex-direction:column}.platform-badge{white-space:normal}.platform-cols{grid-template-columns:1fr}.rounded-principle{grid-template-columns:1fr}.platform-card{padding:24px 22px 26px}.platform-summary h3{font-size:34px}}
@media(max-width:600px){.platform-top{align-items:flex-start;flex-direction:column}.platform-num{width:40px;height:40px;font-size:16px}.rounded-principle p{font-size:26px}}


/* v7 responsive refinements */
html,body{max-width:100%;overflow-x:hidden}
img,svg,video{max-width:100%;height:auto}
main,section,article,div{min-width:0}
h1,h2,h3,p,li,a,strong,span{overflow-wrap:anywhere}
body{-webkit-text-size-adjust:100%}
.section{padding-left:clamp(20px,5vw,72px);padding-right:clamp(20px,5vw,72px)}
.site-header{padding-left:clamp(18px,4vw,56px);padding-right:clamp(18px,4vw,56px)}
.hero{grid-template-columns:minmax(260px,.78fr) minmax(0,1.22fr);gap:clamp(36px,7vw,100px)}
.hero h1{font-size:clamp(54px,7vw,116px)}
.intro{font-size:clamp(16px,1.7vw,18px)}
.portrait-wrap{width:min(100%,460px)}
.academic-strip{margin-left:clamp(20px,5vw,72px);margin-right:clamp(20px,5vw,72px)}
.platform-card,.platform-col,.rounded-principle,.platform-flow{max-width:100%}
.platform-summary h3{font-size:clamp(32px,4vw,44px)}
.platform-lead{font-size:clamp(15px,1.8vw,17px)}
.archive-tools input,.archive-tools select{min-height:44px}
.quick-links a,.site-header nav a,.menu-btn{min-height:44px;display:inline-flex;align-items:center}
dialog{max-width:calc(100vw - 32px);max-height:90vh;overflow:auto}

@media(max-width:1100px){
  .hero{grid-template-columns:minmax(240px,.75fr) minmax(0,1.25fr);gap:48px}
  .platform-main{grid-template-columns:1fr}
  .platform-cols{grid-template-columns:1fr 1fr}
}

@media(max-width:950px){
  .site-header{height:64px}
  .menu-btn{display:inline-flex;align-items:center;justify-content:center;min-width:52px}
  nav{display:none}
  nav.mobile-open{display:flex!important;position:absolute;left:18px;right:18px;top:68px;flex-direction:column;gap:2px;background:#f7f5ef;border:1px solid var(--line);border-radius:18px;padding:10px;box-shadow:0 16px 40px rgba(0,0,0,.08)}
  nav.mobile-open a{padding:0 12px;border-radius:12px}
  nav.mobile-open a:active{background:#eee9df}
  .hero{grid-template-columns:1fr;gap:34px;padding-top:54px;min-height:auto}
  .portrait-wrap{max-width:340px;margin:0 auto 6px 0}
  .hero h1{font-size:clamp(52px,11vw,82px);line-height:.94}
  .section-intro,.writing-columns,.about-grid,.archive-head{grid-template-columns:1fr}
  .section-intro{gap:22px}
  .research-grid{grid-template-columns:1fr}
  .research-grid article:nth-child(even){border-left:0;padding-left:0}
  .archive-grid{grid-template-columns:1fr}
  .archive-card:nth-child(even){border-left:0;padding-left:0}
  .pub-list article{grid-template-columns:76px 1fr;gap:16px}
  .pub-type{display:none}
  .academic-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .platform-grid{grid-template-columns:1fr}
  .platform-lead{min-height:auto}
  .platform-head{gap:14px}
}

@media(max-width:760px){
  .section{padding-top:76px;padding-bottom:76px}
  .platform-card{border-radius:22px;padding:24px 20px 26px}
  .platform-head{flex-direction:column}
  .platform-badge{white-space:normal;max-width:100%}
  .platform-cols{grid-template-columns:1fr}
  .platform-col{border-radius:18px}
  .rounded-principle{grid-template-columns:1fr;border-radius:22px;padding:24px 22px}
  .rounded-principle p{font-size:clamp(24px,6vw,32px)}
  .writing-list a{grid-template-columns:88px 1fr}
  .time-row{grid-template-columns:92px 1fr;gap:18px}
}

@media(max-width:600px){
  .section{padding:64px 18px}
  .site-header{padding:0 16px}
  .brand-serif{font-size:20px}
  .hero{padding-top:44px}
  .portrait-wrap{max-width:290px}
  .hero h1{font-size:clamp(46px,15vw,66px)}
  .hero h1 span{font-size:.31em}
  .role{font-size:16px}
  .intro{font-size:16px;line-height:1.8}
  .quick-links{gap:4px 14px}
  .quick-links a{margin-right:0}
  .academic-strip{margin:0 18px;grid-template-columns:1fr 1fr}
  .academic-strip div{padding:15px 10px 15px 0}
  .academic-strip div+div{padding-left:10px}
  .academic-strip strong{font-size:17px}
  .section-intro h2,.about-grid h2,.archive-head h2{font-size:clamp(38px,11vw,52px)}
  .research-grid h3{font-size:25px}
  .pub-list article{grid-template-columns:58px 1fr;gap:12px;padding:20px 0}
  .pub-list h3{font-size:17px;line-height:1.5}
  .platform-top{align-items:flex-start;flex-direction:column}
  .platform-num{width:40px;height:40px;font-size:16px}
  .platform-summary h3{font-size:clamp(31px,9vw,38px)}
  .platform-flow{padding:16px;border-radius:16px}
  .platform-flow span{font-size:13px}
  .platform-cols ul{font-size:13px}
  .writing-list a{grid-template-columns:1fr;gap:5px;padding:14px 0}
  .writing-list a strong{font-size:14px;line-height:1.6}
  .time-row{grid-template-columns:72px 1fr;gap:14px}
  .time-row>span{font-size:18px}
  .archive-tools{justify-content:flex-start;flex-direction:column;width:100%}
  .archive-tools input,.archive-tools select{width:100%;font-size:16px}
  .archive-summary{display:block}
  .archive-card h3{font-size:23px}
  footer{flex-direction:column;padding:38px 18px;gap:24px}
  .footer-right{text-align:left}
  dialog{padding:34px 22px}
  dialog h2{font-size:32px}
}

@media(max-width:380px){
  .academic-strip{grid-template-columns:1fr}
  .academic-strip div+div{border-left:0;border-top:1px solid var(--line);padding-left:0}
  .hero h1{font-size:44px}
  .platform-card{padding:20px 16px 22px}
  .rounded-principle{padding:20px 18px}
}

.selected-pubs .section-intro{margin-bottom:28px}

.capability-col{display:flex;flex-direction:column;justify-content:flex-start}
.capability-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:4px}
.capability-tags span{display:inline-flex;align-items:center;min-height:40px;padding:9px 13px;border:1px solid #d6cabb;border-radius:999px;background:#fffaf2;font-size:13px;color:#5a5048;font-weight:600}

.writing-extra{display:none!important}
.writing-list.show-all .writing-extra{display:grid!important}
.writing-toggle{margin-top:18px;min-height:44px;padding:10px 16px;border:1px solid var(--ink);border-radius:999px;background:transparent;color:var(--ink);cursor:pointer;font-size:12px;font-weight:600;letter-spacing:.02em}
.writing-toggle:hover{background:var(--ink);color:#fff}
.writing-toggle span{color:inherit;font-size:10px;margin-left:4px}

.rounded-principle p{font-size:clamp(21px,2.45vw,32px);line-height:1.45}

@media(max-width:600px){.brand-serif{font-size:18px}.brand-lab{font-size:8px}.writing-toggle{width:100%}.capability-tags span{font-size:12px}}
.hero-manifesto{font:600 clamp(22px,2.5vw,34px)/1.25 var(--serif);letter-spacing:-.025em;margin:18px 0 14px;color:var(--accent)}
.evidence-section{background:#ebe6dc}.evidence-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line);border-left:1px solid var(--line)}.evidence-grid a{display:block;color:inherit;text-decoration:none;padding:28px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-height:220px;background:rgba(255,255,255,.28);transition:.2s}.evidence-grid a:hover{background:rgba(255,255,255,.65);transform:translateY(-2px)}.evidence-grid span{font-size:10px;letter-spacing:.14em;color:var(--accent);font-weight:700}.evidence-grid h3{font:600 25px/1.25 var(--serif);margin:26px 0 12px}.evidence-grid p{font-size:14px;line-height:1.8;color:var(--muted);margin:0}.platform-col p{font-size:14px;line-height:1.8;color:#57544e;margin:0}
@media(max-width:900px){.evidence-grid{grid-template-columns:1fr 1fr}}@media(max-width:600px){.evidence-grid{grid-template-columns:1fr}.evidence-grid a{min-height:auto;padding:24px}.hero-manifesto{font-size:24px}}

/* v4: research identity hierarchy */
.hero h1.researcher-title{font:600 clamp(42px,5.1vw,76px)/1.05 var(--serif);letter-spacing:-.045em;margin:20px 0 14px;max-width:760px}
.researcher-name{font:600 clamp(22px,2.1vw,34px)/1.2 var(--serif);letter-spacing:-.02em;margin:0 0 24px;color:var(--ink)}
.researcher-name span{font-family:var(--sans);font-size:.7em;font-weight:500;letter-spacing:.01em;color:var(--muted)}
@media(max-width:600px){.hero h1.researcher-title{font-size:clamp(40px,12vw,58px)}.researcher-name{font-size:25px}.researcher-name span{display:inline}}

/* v5: prevent long section titles from colliding with body copy */
.single-intro h2{
  font-size:clamp(42px,4.6vw,68px);
  line-height:1.12;
  letter-spacing:-.035em;
  margin:0 0 26px;
  text-wrap:balance;
}
.single-intro p{
  line-height:1.8;
  max-width:820px;
}
@media(max-width:600px){
  .single-intro h2{font-size:clamp(36px,10vw,48px);line-height:1.15;margin-bottom:20px;}
}

/* v7: compact mobile research title */
@media(max-width:600px){
  .hero h1.researcher-title{font-size:clamp(34px,9.4vw,46px);line-height:1.12;letter-spacing:-.04em;word-break:keep-all;overflow-wrap:normal;max-width:100%;}
}
@media(max-width:380px){
  .hero h1.researcher-title{font-size:clamp(31px,9vw,38px);}
}