@font-face{font-family:Inter;src:url('/assets/fonts/inter-latin.woff2') format('woff2');font-style:normal;font-weight:100 900;font-display:swap}

@font-face{font-family:Newsreader;src:url('/assets/fonts/newsreader-latin.woff2') format('woff2');font-style:normal;font-weight:200 800;font-display:swap}
:root{--paper:#f7f6f2;--ink:#202a29;--muted:#606965;--line:#d9ded5;--accent:#244b46;--wash:#edf0e9;--blue:#2356a8;--serif:Newsreader,Georgia,serif;--sans:Inter,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:105px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.75;-webkit-font-smoothing:antialiased}
::selection{background:#dce6d2;color:var(--ink)}
a{color:inherit;text-decoration:none}
button,a,summary{-webkit-tap-highlight-color:transparent}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--blue);outline-offset:6px;border-radius:2px}
img{max-width:100%;display:block}
p,h1,h2,h3,h4,figure,blockquote{margin:0}
h1,h2,h3,h4{font-weight:500;line-height:1.16}
em{font-weight:400}
.wrap{width:min(1120px,calc(100% - 96px));margin-inline:auto}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:fixed;z-index:100;top:10px;left:20px;transform:translateY(-150%);padding:12px 20px;background:var(--ink);color:#fff}
.skip-link:focus{transform:none}
.site-header{position:sticky;top:0;z-index:10;border-bottom:1px solid var(--line);background:rgba(247,246,242,.97);backdrop-filter:blur(12px)}
.nav-wrap{width:min(1248px,calc(100% - 96px));margin:auto;min-height:86px;display:flex;align-items:center;justify-content:space-between;gap:30px}
.wordmark{font-size:21px;font-weight:600;letter-spacing:-.8px;white-space:nowrap}
.wordmark-dot{color:var(--accent);font-family:var(--serif);font-size:30px}
.site-header nav{display:flex;align-items:center;gap:32px;font-size:14px;font-weight:500;line-height:1.3}
.site-header nav>a{padding-block:12px}
.site-header nav>a:hover,.site-header nav>a[aria-current]{color:var(--blue)}
.site-header nav .nav-resume{border:1px solid #bdc7bf;padding:10px 17px;border-radius:3px}
.nav-resume span[aria-hidden]{margin-left:12px}
.eyebrow,.section-label,.date-label,.small-note,.project-meta,.project-category,.talk-date,.talk-host,.talk-type,.case-number{font-size:12px;font-weight:500;letter-spacing:.07em;line-height:1.55}
.eyebrow{letter-spacing:.13em;text-transform:uppercase;color:var(--accent)}
.hero{padding-top:100px;padding-bottom:90px;display:grid;grid-template-columns:1.5fr 1fr;gap:84px;align-items:center}
.hero h1{font-family:var(--serif);font-size:clamp(60px,6.7vw,94px);letter-spacing:-.055em;line-height:1.05;margin-top:22px}
.hero h1>span{color:var(--accent)}
.hero-statement{font-size:27px;line-height:1.4;letter-spacing:-.04em;margin-top:22px;font-weight:500}
.hero-description{margin-top:22px;max-width:520px;color:var(--muted);font-size:17px;line-height:1.85}
.hero-actions{display:flex;gap:14px;align-items:center;margin-top:30px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:28px;min-height:50px;padding:12px 21px;font-size:14px;font-weight:500;border-radius:3px;line-height:1.4}
.button-primary{background:var(--accent);color:white;border:1px solid var(--accent)}
.button-primary:hover{background:#163b36}
.button-plain{border:1px solid #bcc7bc;background:transparent}
.button-plain:hover{background:var(--wash)}
.location{display:flex;align-items:center;gap:9px;margin-top:26px;color:var(--muted);font-size:12px;line-height:1.7}
.location-dot{width:5px;height:5px;background:var(--accent);border-radius:50%;flex-shrink:0}
.portrait{width:100%;max-width:355px;justify-self:end;position:relative}
.portrait:before{content:'';position:absolute;z-index:-1;right:-18px;top:-18px;width:80%;height:75%;border:1px solid #cdd5c8}
.portrait-image{overflow:hidden;background:#dfded6;border-radius:2px}
.portrait-image>img{width:100%;height:auto;aspect-ratio:1/1.09;object-fit:cover;object-position:50% 50%}
.portrait figcaption{display:flex;justify-content:space-between;align-items:center;padding-top:18px;color:var(--muted);font-size:12px;line-height:1.6}
.affiliations{border-block:1px solid var(--line);padding-block:25px;display:flex;justify-content:space-between;align-items:center;gap:24px}
.affiliations>p{font-size:11px;letter-spacing:.06em;line-height:1.6;color:var(--muted)}
.affiliation{display:flex;align-items:center;gap:12px;line-height:1.25;font-size:14px;font-weight:500}
.org-logo{width:50px;height:50px;object-fit:contain;background:#fff;border-radius:4px;flex-shrink:0}
.affiliation .org-logo{width:38px;height:38px;mix-blend-mode:multiply}
.affiliation.kaist img{width:95px;height:auto;mix-blend-mode:multiply}
.now-section{padding-block:55px 60px;border-bottom:1px solid var(--line)}
.status-dot{display:inline-block;width:6px;height:6px;margin:0 9px 1px 0;background:var(--accent);border-radius:50%}
.now-section>h2{font-size:28px;font-weight:600;letter-spacing:-.035em}
.now-content{display:grid;grid-template-columns:1.1fr 1fr;gap:70px;margin-top:22px}
.now-content>p+p{margin-top:0}
.now-content h2 em{color:var(--accent)}
.now-content p{color:var(--muted);font-size:16px}
.now-content p+p{margin-top:14px}
.now-content strong{font-weight:600;color:var(--ink)}
.small-note{display:inline-block;color:var(--accent);margin-top:18px;letter-spacing:.02em}
.section{padding-top:86px;padding-bottom:84px}
.section-heading{display:grid;grid-template-columns:195px 1fr;gap:34px;margin-bottom:44px}
.section-label{text-transform:uppercase;letter-spacing:.11em;color:var(--muted);display:flex;gap:20px;padding-top:9px}
.section-label>span{color:#748076}
.section-heading h2{font-family:var(--serif);font-size:43px;letter-spacing:-.025em}
.section-heading>div>p{font-size:16px;color:var(--muted);margin-top:13px;max-width:660px}
.toss-feature{padding:36px 40px;border:1px solid var(--line);border-radius:3px;background:#fbfaf7}
.toss-top{display:flex;justify-content:space-between;gap:28px}
.org-heading{display:flex;gap:18px;align-items:center}
.org-heading h3{font-size:25px;font-weight:600;letter-spacing:-.035em}
.company-legal{font-size:14px;color:var(--muted);font-weight:400;letter-spacing:0}
.org-heading p{font-size:12px;margin-top:6px;color:var(--muted)}
.toss-top>.date-label{text-align:right;color:var(--muted);min-width:130px;font-size:11px;letter-spacing:.02em}
.toss-intro{font-size:18px;max-width:790px;margin-top:30px;line-height:1.8}
.impact-grid{display:grid;grid-template-columns:repeat(3,1fr);margin-top:35px;border-block:1px solid var(--line);padding-block:29px;gap:34px}
.impact-grid>div+div{border-left:1px solid var(--line);padding-left:34px}
.impact-value{font-family:var(--serif);font-size:54px;letter-spacing:-.04em;color:var(--accent);line-height:1.2}
.impact-value>span{font-size:36px}
.impact-value .thin-arrow{font-size:34px;vertical-align:5px;margin-inline:7px}
.impact-grid p{font-size:13px;line-height:1.65;color:var(--muted);margin-top:8px}
.experience-stories{display:grid;grid-template-columns:1fr 1fr;gap:28px 52px;margin-top:36px}
.experience-stories h4{font-size:16px;font-weight:600;letter-spacing:-.02em}
.experience-stories p{margin-top:9px;font-size:14px;line-height:1.85;color:var(--muted)}
.toss-footnote{display:flex;gap:20px;justify-content:space-between;flex-wrap:wrap;border-top:1px solid var(--line);margin-top:32px;padding-top:18px;font-size:10px;color:var(--muted)}
.text-link{display:inline-flex;align-items:center;gap:12px;font-size:13px;font-weight:500;color:var(--accent);text-decoration:underline;text-decoration-color:#aebfb1;text-underline-offset:5px;white-space:nowrap;padding-block:5px}
.text-link:hover{text-decoration-color:var(--accent)}
.text-link span[aria-hidden]{font-size:17px}
.toss-footnote .text-link{font-size:11px}
summary{cursor:pointer;list-style:none}
summary::-webkit-details-marker{display:none}
.earlier-career{border-bottom:1px solid var(--line);margin-top:20px}
.earlier-career>summary{display:flex;align-items:center;gap:26px;padding:20px 0;font-size:16px;font-weight:500}
.summary-detail{font-size:12px;color:var(--muted);font-weight:400}
.plus{margin-left:auto;font-size:23px;font-weight:400;line-height:1}
details[open]>summary .plus{transform:rotate(45deg)}
.career-list{display:grid;gap:28px;padding-block:12px 32px}
.career-list article{display:grid;grid-template-columns:50px 1fr;gap:24px}
.career-list h3{font-size:18px;font-weight:500}
.career-list .role{font-size:12px;color:var(--accent);margin-top:5px}
.career-list p:last-child{font-size:15px;color:var(--muted);max-width:790px;margin-top:10px}
.initial-logo{display:flex;align-items:center;justify-content:center;width:50px;height:50px;background:#e9eae0;font:28px var(--serif);color:var(--accent);border-radius:3px}
.projects-section{background:var(--wash);border-block:1px solid var(--line);padding-block:86px}
.project-meta{display:flex;align-items:center;justify-content:space-between;gap:20px;color:var(--muted);font-size:11px;letter-spacing:.01em}
.project-name{font-size:18px;font-weight:600;letter-spacing:-.045em;color:var(--ink)}
.tags{display:flex;gap:7px;flex-wrap:wrap;list-style:none;padding:0;margin:24px 0}
.tags>li{font-size:10px;border:1px solid #cfd6cb;border-radius:2px;padding:4px 9px;line-height:1.5;color:#536156;background:transparent}
.project-category{text-transform:uppercase;color:var(--accent);font-size:10px;letter-spacing:.1em;margin-top:18px}
.talks-section{padding-bottom:60px}
.talk-row{display:grid;grid-template-columns:195px 1fr 110px;gap:34px;padding:29px 0;border-top:1px solid var(--line)}
.talk-date{color:var(--muted);padding-top:5px;font-size:11px}
.talk-host{color:var(--accent);text-transform:uppercase;font-size:10px;letter-spacing:.04em;margin-bottom:9px}
.talk-row h3{font-family:var(--serif);font-size:29px;letter-spacing:-.02em;line-height:1.25}
.talk-row p:not(.talk-host){font-size:14px;color:var(--muted);margin-top:10px}
.talk-type{font-size:10px;color:var(--muted);text-align:right;padding-top:5px;letter-spacing:0}
.talk-row .text-link{margin-top:12px;font-size:12px}
.talk-details{margin-top:15px}
.talk-details summary{display:inline-flex;gap:20px;color:var(--accent);font-size:12px;border-bottom:1px solid #b9c7b6;padding-bottom:3px;line-height:1.6}
.talk-details[open] summary>span{transform:rotate(45deg)}
.talk-details>div{border-left:2px solid var(--line);padding-left:18px;margin-top:18px}
.talk-details ul{font-size:14px;color:var(--muted);padding-left:19px;margin-bottom:0}
.talk-details li{margin-top:7px}
.education-section{border-top:1px solid var(--line);padding-top:65px;padding-bottom:68px}
.education-grid{display:grid;grid-template-columns:1fr 1fr;gap:65px}
.education-grid article{display:flex;gap:20px}
.education-grid h3{font-size:18px;font-weight:600;letter-spacing:-.025em;margin-top:3px}
.education-grid .degree{font-size:14px;margin-top:9px;line-height:1.65}
.education-grid .date-label{color:var(--accent);font-size:11px;letter-spacing:0;margin-top:8px}
.education-grid p:last-child{color:var(--muted);font-size:13px;margin-top:15px}
.kaist-logo-box{width:72px;min-width:72px;height:50px;display:flex;align-items:center;background:#fff;border-radius:3px;padding:5px}
.kaist-logo-box img{width:100%;height:auto}
.site-footer{background:#193e3b;color:#f7f6ef;padding-top:66px}
.site-footer .eyebrow{color:#bccfba;font-size:10px}
.site-footer h2{font-family:var(--serif);font-size:56px;line-height:1.12;letter-spacing:-.03em;margin-top:24px}
.site-footer h2 em{color:#c6d4bc}
.footer-links{display:flex;gap:30px;margin-top:21px}
.site-footer .text-link{color:#d6e0d2;text-decoration-color:#63827a;font-size:12px}
.project-page{padding-top:45px}
.back-link{display:inline-flex;align-items:center;gap:12px;font-size:12px;color:var(--muted);padding-block:8px}
.back-link:hover{color:var(--accent)}
.project-hero{max-width:900px;margin:auto;padding-top:55px}
.project-hero .project-meta{justify-content:flex-start;gap:32px}
.project-hero .project-name{font-size:24px}
.project-hero .eyebrow{margin-top:33px;font-size:11px}
.project-hero h1{font-family:var(--serif);font-size:clamp(40px,5vw,66px);letter-spacing:-.035em;line-height:1.13;margin-top:20px;max-width:850px}
.project-lead{font-size:18px;color:var(--muted);max-width:760px;margin-top:28px;line-height:1.85}
.project-role{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-top:38px;border-block:1px solid var(--line);padding-block:23px}
.project-role span{display:block;text-transform:uppercase;font-size:10px;color:var(--muted);letter-spacing:.06em}
.project-role strong{display:block;font-size:13px;font-weight:500;margin-top:5px}
.project-evidence{display:grid;grid-template-columns:repeat(3,1fr);padding:35px 0;max-width:900px;margin:0 auto}
.project-evidence>div+div{border-left:1px solid var(--line);padding-left:35px}
.project-evidence strong{display:block;font-family:var(--serif);font-size:39px;font-weight:400;color:var(--accent);letter-spacing:-.02em;line-height:1.2}
.project-evidence span{font-size:11px;color:var(--muted);display:block;margin-top:8px}
.case-body{display:grid;grid-template-columns:220px 1fr;gap:72px;margin-top:60px;margin-bottom:75px}
.case-body>aside{align-self:start;position:sticky;top:130px;padding-top:10px}
.case-body>aside .eyebrow{font-size:10px;margin-bottom:20px}
.case-body>aside nav{display:flex;flex-direction:column;gap:16px}
.case-body>aside a{display:flex;gap:13px;font-size:11px;color:var(--muted);line-height:1.65}
.case-body>aside a:hover{color:var(--blue)}
.case-body>aside a span{font-size:10px;color:#6c816a;padding-top:1px}
.case-text{max-width:740px}
.case-text section{margin-bottom:43px}
.case-number{color:var(--accent);font-size:10px}
.case-text h2{font-family:var(--serif);font-size:34px;letter-spacing:-.025em;margin-top:12px;line-height:1.23}
.case-text section>p{font-size:17px;line-height:1.95;margin-top:19px;color:var(--muted)}
.case-text blockquote{border-left:2px solid var(--accent);padding:8px 0 8px 28px;margin-top:45px}
.case-text blockquote p{font-family:var(--serif);font-size:30px;line-height:1.3;letter-spacing:-.02em;color:var(--accent)}
.case-text blockquote span{display:block;font-size:10px;color:var(--muted);margin-top:14px}
.next-project{display:flex;align-items:center;justify-content:space-between;gap:30px;border-top:1px solid var(--line);padding:35px 0 55px}
.next-project .eyebrow{display:block;font-size:10px}
.next-project strong{display:block;font-family:var(--serif);font-size:28px;font-weight:400;margin-top:15px;line-height:1.2}
.next-project>span:last-child{font-size:34px;color:var(--accent)}
.next-project:hover strong{text-decoration:underline;text-underline-offset:5px}
.not-found{padding-block:100px}
.not-found h1{font-family:var(--serif);font-size:65px;margin-block:30px}
.not-found>p{margin-bottom:26px}
/* Give substantive copy priority over compact metadata. */
.experience-stories p{font-size:15px}
.education-grid p:last-child{font-size:14px}
.talk-row p:not(.talk-host){font-size:15px}

@media(min-width:1500px){.hero{padding-top:115px;padding-bottom:105px}
}

@media(max-width:1050px){.hero{gap:45px;padding-top:75px}
.hero h1{font-size:76px}
.hero-statement{font-size:24px}
.section-heading{grid-template-columns:145px 1fr}
.talk-row{grid-template-columns:145px 1fr 85px}
.now-content{gap:50px}
.case-body{grid-template-columns:180px 1fr;gap:45px}
.impact-value{font-size:47px}
.toss-feature{padding:30px}
}

@media(max-width:800px){.wrap,.nav-wrap{width:calc(100% - 48px)}
.nav-wrap{min-height:76px}
.site-header nav{gap:18px;font-size:12px}
.wordmark{font-size:19px}
.site-header nav .nav-resume{padding:8px 12px}
.nav-resume span[aria-hidden]{margin-left:6px}
.hero{grid-template-columns:1.3fr 1fr;gap:35px;padding-block:60px}
.hero h1{font-size:62px}
.hero-statement{font-size:22px}
.hero-description{font-size:15px}
.eyebrow{font-size:10px}
.hero-actions{gap:10px}
.button{padding:11px 15px;gap:14px;font-size:12px;min-height:45px}
.location{font-size:10px}
.portrait:before{right:-10px;top:-10px}
.portrait figcaption{font-size:10px}
.affiliations{gap:18px;padding-block:20px}
.affiliations>p{font-size:9px}
.affiliation{font-size:11px;gap:8px}
.affiliation .org-logo{width:30px;height:30px}
.affiliation.kaist img{width:70px}
.now-content{gap:40px}
.now-content h2{font-size:31px}
.now-content p{font-size:14px}
.section-heading{grid-template-columns:110px 1fr;gap:24px}
.section-heading h2{font-size:36px}
.section-label{font-size:10px;gap:12px}
.section-heading>div>p{font-size:14px}
.toss-top{flex-wrap:wrap}
.toss-top>.date-label{text-align:left;padding-left:68px;margin-top:-17px}
.toss-intro{font-size:16px;margin-top:24px}
.impact-grid{gap:20px}
.impact-grid>div+div{padding-left:20px}
.impact-grid p{font-size:11px}
.experience-stories{gap:25px 30px}
.project-meta{font-size:9px;gap:12px}
.project-name{font-size:16px}
.talk-row{grid-template-columns:110px 1fr;gap:24px}
.talk-type{display:none}
.talk-row h3{font-size:27px}
.education-grid{gap:30px}
.education-grid article{flex-direction:column;gap:14px}
.site-footer h2{font-size:46px}
.case-body{grid-template-columns:155px 1fr;gap:30px}
.project-role{gap:25px}
.case-text h2{font-size:30px}
.case-text section>p{font-size:16px}
.project-lead{font-size:17px}
.project-evidence strong{font-size:34px}
.project-evidence>div+div{padding-left:25px}
}

@media(max-width:600px){html{scroll-padding-top:120px}
.wrap,.nav-wrap{width:calc(100% - 40px)}
.nav-wrap{display:block;padding-block:13px;min-height:auto}
.wordmark{display:block;width:max-content;line-height:1.35}
.site-header nav{justify-content:space-between;gap:10px;margin-top:6px;font-size:11px}
.site-header nav>a{padding-block:8px}
.site-header nav .nav-resume{padding:5px 9px}
.hero{grid-template-columns:1fr;gap:34px;padding-top:48px;padding-bottom:45px}
.hero h1{font-size:72px;margin-top:18px}
.hero-statement{font-size:26px;line-height:1.45;margin-top:15px}
.hero-description{font-size:16px;line-height:1.85;margin-top:18px}
.hero-actions{margin-top:25px}
.button{font-size:13px;padding:12px 18px;gap:26px;min-height:48px}
.location{font-size:11px;margin-top:20px}
.portrait{max-width:100%;display:grid;grid-template-columns:120px 1fr;gap:22px;align-items:end;justify-self:start}
.portrait-image>img{aspect-ratio:1/1.12}
.portrait:before{display:none}
.portrait figcaption{padding-top:0;font-size:11px;align-items:end;gap:15px}
.affiliations{display:grid;grid-template-columns:1fr 1fr;column-gap:30px;row-gap:22px;padding-block:26px}
.affiliations>p{grid-column:1/-1;font-size:10px}
.affiliations>p br{display:none}
.affiliation{font-size:12px;gap:10px}
.affiliation .org-logo{width:34px;height:34px}
.affiliation.kaist{min-height:34px}
.affiliation.kaist img{width:92px}
.now-section{padding-block:43px 49px}
.now-content{grid-template-columns:1fr;gap:22px;margin-top:23px}
.now-content h2{font-size:33px;line-height:1.25}
.now-content p{font-size:15px}
.section{padding-block:49px}
.section-heading{grid-template-columns:1fr;gap:18px;margin-bottom:28px}
.section-label{font-size:10px;padding-top:0}
.section-heading h2{font-size:36px;line-height:1.18}
.section-heading>div>p{font-size:14px;line-height:1.8;margin-top:12px}
.toss-feature{padding:23px 20px}
.org-heading{gap:12px;align-items:flex-start}
.org-heading .org-logo{width:42px;height:42px}
.org-heading h3{font-size:24px}
.company-legal{display:block;font-size:11px;line-height:1.8;margin-top:4px}
.org-heading p{font-size:11px;line-height:1.7}
.toss-top>.date-label{padding-left:54px;margin-top:-10px;line-height:1.7}
.toss-top>.date-label br{display:none}
.toss-top>.date-label br:after{content:' · '}
.toss-intro{font-size:15px;line-height:1.85}
.impact-grid{gap:18px;grid-template-columns:1fr;padding-block:22px;margin-top:24px}
.impact-grid>div{display:grid;grid-template-columns:125px 1fr;gap:12px;align-items:center}
.impact-grid>div+div{border-left:0;border-top:1px solid var(--line);padding-left:0;padding-top:16px}
.impact-value{font-size:40px}
.impact-value>span{font-size:28px}
.impact-value .thin-arrow{font-size:24px;margin-inline:4px;vertical-align:3px}
.impact-grid p{font-size:11px;margin-top:0;line-height:1.8}
.experience-stories{grid-template-columns:1fr;gap:23px;margin-top:28px}
.experience-stories h4{font-size:15px}
.experience-stories p{font-size:14px}
.toss-footnote{gap:14px;font-size:10px;line-height:1.9;margin-top:24px}
.earlier-career>summary{gap:16px;font-size:14px;padding-block:17px}
.summary-detail{font-size:10px;max-width:170px;line-height:1.5}
.career-list article{gap:16px;grid-template-columns:40px 1fr}
.career-list .org-logo,.initial-logo{width:40px;height:40px}
.career-list p:last-child{font-size:14px}
.projects-section{padding-block:49px}
.project-meta{font-size:10px}
.project-name{font-size:18px}
.tags{margin-block:20px}
.tags>li{font-size:10px}
.text-link{font-size:13px}
.talk-row{grid-template-columns:1fr;gap:12px;padding-block:25px}
.talk-date{font-size:10px;padding-top:0}
.talk-host{font-size:10px;line-height:1.8}
.talk-row h3{font-size:28px}
.talk-row p:not(.talk-host){font-size:14px;line-height:1.85}
.education-grid{grid-template-columns:1fr;gap:35px}
.education-grid article{flex-direction:row;gap:16px}
.education-grid .org-logo{width:44px;height:44px}
.education-grid h3{font-size:17px}
.education-grid .degree{font-size:13px}
.kaist-logo-box{width:54px;min-width:54px;height:44px}
.site-footer{padding-top:44px}
.site-footer h2{font-size:46px;margin-top:20px}
.project-page{padding-top:28px}
.project-hero{padding-top:31px}
.project-hero .project-meta{gap:24px}
.project-hero .project-name{font-size:22px}
.project-hero .eyebrow{margin-top:25px}
.project-hero h1{font-size:43px;line-height:1.13;margin-top:17px}
.project-lead{font-size:16px;margin-top:24px;line-height:1.9}
.project-role{grid-template-columns:1fr;gap:20px;margin-top:25px;padding-block:23px}
.project-role strong{font-size:12px;line-height:1.7}
.project-evidence{gap:18px;padding-block:26px;grid-template-columns:1fr}
.project-evidence>div{display:flex;align-items:center;gap:25px}
.project-evidence>div+div{padding-left:0;border-left:0}
.project-evidence strong{font-size:31px;width:115px;flex-shrink:0}
.project-evidence span{font-size:11px;margin-top:0}
.case-body{display:block;margin-top:35px;margin-bottom:44px}
.case-body>aside{position:static;border-bottom:1px solid var(--line);padding-bottom:25px;margin-bottom:35px}
.case-body>aside nav{gap:10px}
.case-body>aside a{font-size:12px}
.case-text h2{font-size:31px}
.case-text section>p{font-size:16px;line-height:1.95}
.case-text blockquote{padding-left:20px}
.case-text blockquote p{font-size:27px}
.next-project{padding-block:28px 40px;gap:18px}
.next-project strong{font-size:25px}
.next-project>span:last-child{font-size:25px}
.not-found{padding-block:65px}
.not-found h1{font-size:50px}
}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}
*,*::before,*::after{animation:none!important;transition:none!important}
}

@media(max-width:600px){.hero h1{font-size:clamp(54px,16vw,64px)}
}

@media print{.site-header,.hero-actions,.site-footer,.back-link,.case-body>aside,.next-project{display:none}
.wrap{width:100%}
body{font-size:11pt;color:#000;background:white}
.hero,.section,.now-section,.projects-section{padding-block:20px}
.hero h1{font-size:48pt}
.hero{grid-template-columns:2fr 1fr;gap:30px}
.portrait{max-width:140px}
.portrait figcaption{display:none}
.affiliations{padding:15px}
.section-heading{grid-template-columns:100px 1fr}
.toss-feature{padding:20px}
.experience-stories{gap:20px}
.toss-feature,.talk-row,.education-grid article{break-inside:avoid}
.earlier-career:not([open]){display:none}
.projects-section{background:white}
.case-body{display:block}
.case-text{max-width:none}
a[href^='http']::after{content:none}
}


/* Section headings establish the page structure; project rows share one quiet treatment. */
.section-heading{display:block;margin-bottom:34px}

.section-heading h2{display:flex;align-items:baseline;gap:18px;font-family:var(--sans);font-size:28px;font-weight:600;line-height:1.35;letter-spacing:-.035em;color:var(--ink)}

.section-number{font-size:18px;font-weight:500;letter-spacing:0;color:var(--muted)}

.section-heading .section-description{font-size:16px;line-height:1.8;color:var(--muted);margin-top:12px;max-width:850px}

.projects-section{background:var(--paper);padding-block:70px;border-block:1px solid var(--line)}

.project-row{display:grid;grid-template-columns:195px 1fr;gap:34px;padding-block:30px;border-top:1px solid var(--line)}

.project-row-meta h3{font-family:var(--sans);font-size:19px;font-weight:600;letter-spacing:-.025em;line-height:1.4}

.project-row-meta p{font-size:12px;line-height:1.7;color:var(--muted);margin-top:7px}

.project-row-meta>span{display:block;font-size:12px;line-height:1.7;color:var(--muted);margin-top:4px}

.project-row-copy h4{font-family:var(--serif);font-size:29px;font-weight:500;line-height:1.25;letter-spacing:-.025em}

.project-row-copy>p{font-size:16px;line-height:1.85;color:var(--muted);margin-top:13px;max-width:760px}

.project-row-copy>.project-row-note{font-size:14px;margin-top:10px;color:var(--muted)}

.project-row-copy .text-link{margin-top:13px}

.site-footer{background:var(--paper);color:var(--ink);border-top:1px solid var(--line);padding:28px 0}

.footer-row{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}

.footer-name{font-size:12px;color:var(--muted)}

.footer-email{font-size:15px;font-weight:500;line-height:1.6}

.footer-email:hover{text-decoration:underline;text-underline-offset:5px}

.footer-links{display:flex;gap:25px;margin:0}

.site-footer .text-link{color:var(--accent);font-size:13px;text-decoration-color:#aebfb1}

@media(max-width:800px){.project-row{grid-template-columns:145px 1fr;gap:28px}
.section-heading h2{font-size:27px}
.section-heading .section-description{font-size:15px}
.project-row-copy h4{font-size:28px}
}

@media(max-width:600px){.portrait{display:block;max-width:120px}
.section-heading{margin-bottom:25px}
.section-heading h2{font-size:26px;gap:14px}
.section-number{font-size:17px}
.section-heading .section-description{font-size:15px;line-height:1.8}
.projects-section{padding-block:49px}
.project-row{grid-template-columns:1fr;gap:15px;padding-block:26px}
.project-row-meta{display:grid;grid-template-columns:1fr auto;column-gap:20px;row-gap:4px}
.project-row-meta h3{font-size:18px}
.project-row-meta p{grid-column:1;margin:0}
.project-row-meta>span{grid-column:2;grid-row:1;align-self:center;margin:0;font-size:11px}
.project-row-copy h4{font-size:28px}
.project-row-copy>p{font-size:15px}
.project-row-copy>.project-row-note{font-size:14px}
.footer-row{display:grid;grid-template-columns:1fr;gap:17px}
.footer-email{grid-row:1;font-size:16px}
.footer-links{grid-row:2}
.footer-name{grid-row:3;font-size:11px}
.site-footer{padding-block:25px}
}
/* Company context, concrete contributions, and visible earlier roles. */
.company-link{color:var(--accent);text-decoration:underline;text-decoration-color:#b4c5b8;text-underline-offset:5px}
.company-link>span[aria-hidden]{font-size:17px}
.company-description{font-size:16px;line-height:1.8;color:var(--muted);max-width:830px;margin-top:25px}
.company-facts{display:flex;align-items:baseline;flex-wrap:wrap;gap:10px 15px;margin-top:10px;font-size:13px;line-height:1.8;color:var(--accent)}
.company-facts a{text-decoration:underline;text-decoration-color:#bccabe;text-underline-offset:4px}
.company-facts a>span{color:var(--muted);font-size:11px}
.fact-separator{color:#899487}
.early-membership{border-left:2px solid var(--accent);padding-left:19px;margin-top:27px}
.early-membership h4{font-size:20px;font-weight:600;letter-spacing:-.025em;line-height:1.5}
.early-membership p{font-size:14px;color:var(--muted);line-height:1.85;margin-top:6px;max-width:800px}
.toss-contributions{display:grid;grid-template-columns:1fr 1fr;gap:48px;margin-top:35px}
.contribution-heading{font-size:18px;font-weight:600;letter-spacing:-.015em;color:var(--accent);border-bottom:1px solid var(--line);padding-bottom:13px}
.achievement-list{list-style:none;margin:0;padding:0}
.achievement-list li{margin-top:21px}
.case-link{display:inline;font-size:15px;font-weight:600;line-height:1.65;text-decoration:underline;text-decoration-color:#bdcbbd;text-underline-offset:4px}
.case-link:hover{text-decoration-color:var(--accent);color:var(--accent)}
.case-link>span{font-weight:400;color:var(--accent)}
.achievement-list p{font-size:14px;color:var(--muted);line-height:1.85;margin-top:7px}
.toss-tenure{font-size:11px;color:var(--muted);line-height:1.85;border-top:1px solid var(--line);margin-top:30px;padding-top:17px}
.career-history{display:grid;gap:14px;margin-top:14px}
.career-entry{display:grid;grid-template-columns:50px 1fr;gap:24px;padding:29px 40px;border:1px solid var(--line);border-radius:3px;background:#fdfcf9}
.career-entry h3{font-size:20px;font-weight:600;letter-spacing:-.025em;line-height:1.4}
.career-role{font-size:12px;line-height:1.8;color:var(--accent);margin-top:5px}
.career-entry p:not(.career-role),.career-entry li{font-size:15px;line-height:1.85;color:var(--muted);max-width:940px}
.career-entry p:not(.career-role){margin-top:12px}
.career-entry strong{font-weight:500;color:var(--ink)}
.career-entry ul{padding-left:18px;margin-block:12px 0}
.career-entry li+li{margin-top:7px}
.case-group{display:grid;grid-template-columns:195px minmax(0,1fr);column-gap:34px;align-items:start;padding-top:29px;border-top:1px solid var(--line)}
.case-group>h3{position:sticky;top:115px;font-family:var(--sans);font-size:18px;font-weight:600;line-height:1.5;color:var(--accent);margin:0;padding-top:3px;letter-spacing:-.02em}
.case-group+.case-group{margin-top:52px}
.case-list{min-width:0}
.case-list>.case-study:first-child{border-top:0}
.case-list>.case-study:first-child>summary{padding-top:0}
.case-study{border-top:1px solid var(--line);scroll-margin-top:14px}
.case-study:last-child{border-bottom:1px solid var(--line)}
.case-study>summary{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:23px 0}
.case-summary{display:block}
.case-context{display:block;font-size:11px;line-height:1.6;color:var(--muted);margin-bottom:6px}
.case-title{display:block;font-family:var(--serif);font-size:29px;font-weight:500;line-height:1.25;letter-spacing:-.025em}
.case-overview{display:block;font-size:15px;line-height:1.8;color:var(--muted);margin-top:9px;max-width:930px}
.case-toggle{font-size:25px;line-height:1;color:var(--accent);min-width:20px;text-align:center;flex-shrink:0}
.case-study[open]>summary .case-toggle{transform:rotate(45deg)}
.case-study:target .case-title{color:var(--accent)}
.case-content{padding:0 0 29px;max-width:960px}
.case-role{font-size:13px;line-height:1.8;color:var(--muted);margin-bottom:22px}
.case-role strong{font-weight:500;color:var(--ink)}
.case-paragraph{display:grid;grid-template-columns:190px 1fr;gap:30px;margin-top:20px}
.case-paragraph h4{font-family:var(--sans);font-size:14px;font-weight:600;line-height:1.8;color:var(--ink)}
.case-paragraph p{font-size:15px;line-height:1.9;color:var(--muted)}
.case-source{margin-top:22px}
@media(max-width:800px){.toss-contributions{gap:30px}.early-membership h4{font-size:18px}.case-paragraph{grid-template-columns:155px 1fr;gap:24px}.case-title{font-size:27px}.toss-top>.date-label{padding:0;margin:0;min-width:auto}.toss-top{gap:18px}}
@media(max-width:600px){.company-description{font-size:15px;margin-top:20px}.company-facts{display:block;font-size:12px}.company-facts>a{display:block}.fact-separator{display:none}.early-membership{padding-left:14px;margin-top:22px}.early-membership h4{font-size:18px}.early-membership p{font-size:14px}.toss-contributions{grid-template-columns:1fr;gap:29px;margin-top:27px}.contribution-heading{font-size:17px}.case-link{font-size:15px}.achievement-list p{font-size:14px}.toss-tenure{font-size:10px;line-height:1.9}.career-entry{grid-template-columns:40px 1fr;gap:15px;padding-block:25px}.career-entry .org-logo{width:40px;height:40px}.career-entry h3{font-size:18px}.career-entry p:not(.career-role),.career-entry li{font-size:14px}.career-role{font-size:11px}.career-entry ul{padding-left:15px}.case-group>h3{font-size:16px}.case-study>summary{padding-block:21px;gap:17px}.case-title{font-size:26px;line-height:1.2}.case-overview{font-size:14px;line-height:1.85}.case-context{font-size:10px}.case-toggle{font-size:23px}.case-paragraph{grid-template-columns:1fr;gap:7px;margin-top:21px}.case-paragraph h4{font-size:14px}.case-paragraph p{font-size:15px}.case-content{padding-bottom:25px}.case-role{font-size:12px}.case-group+.case-group{margin-top:35px}}
@media print{.case-study>summary{break-inside:avoid}.case-content{display:block}.company-facts a{color:#000}}

/* Role labels stay visible when a project is folded. */
.case-meta{display:flex;align-items:center;gap:9px 12px;flex-wrap:wrap;margin-bottom:8px}
.case-meta .case-context{margin:0}
.role-chip{display:inline-flex;align-items:center;border:1px solid #bdccc5;background:#edf2ef;color:#244b46;border-radius:5px;padding:3px 9px;font-size:11px;font-weight:500;line-height:1.5;white-space:nowrap}
.role-chip[data-role="engineering-lead"]{background:#f2efe8;border-color:#d2c9b8;color:#655331}
.role-chip[data-role="tpm"]{background:#eef1f7;border-color:#c4cddd;color:#3b5278}
.link-icon{display:inline-block;flex-shrink:0;vertical-align:middle}
.linkedin-icon{color:#0a66c2}
.linkedin-link{gap:12px}
.linkedin-link>span[aria-hidden]{margin-left:5px}
.hero-description+.hero-description{margin-top:14px}
.hero-description strong{font-weight:600;color:var(--ink)}
.now-content>p+p{margin-top:0}
.pdf-icon{color:#a3372c}
.early-membership strong{font-weight:600;color:var(--ink)}
.footer-links .text-link,.nav-resume{display:inline-flex;align-items:center;gap:9px}
.footer-links .text-link{white-space:nowrap}
.nav-resume>span[aria-hidden]{margin-left:2px}
.footer-email{display:inline-flex;align-items:center;gap:9px;min-height:40px}
button.footer-email{font:inherit;font-size:14px;font-weight:500;color:var(--accent);background:none;border:0;padding:0;cursor:pointer}
button.footer-email[hidden]{display:none}
@media(max-width:600px){.career-entry{padding:24px 20px}.now-section>h2{font-size:26px}.now-content{gap:14px;margin-top:18px}.case-meta{gap:7px 10px}.role-chip{font-size:11px}.case-meta .case-context{font-size:11px}.nav-resume{gap:5px}.nav-resume .pdf-icon{width:17px;height:17px}.site-header nav .nav-resume{padding:6px 8px}.footer-links{gap:22px}.email-contact{grid-row:1}}
@media(max-width:800px){.case-group{grid-template-columns:110px minmax(0,1fr);column-gap:24px}.case-group>h3{font-size:16px;top:105px}}
@media(max-width:600px){.case-group{grid-template-columns:minmax(0,1fr);row-gap:22px;padding-top:25px}.case-group>h3{position:static;font-size:17px;line-height:1.45;padding:0}.case-group+.case-group{margin-top:40px}}