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@media(max-width:720px){.profile-entry{margin-top:22px;padding:16px 19px;font-size:24px}.profile-entry small{font-size:10px}.home-hero{padding-top:35px}.tags{gap:8px}.tags span{font-size:12px;padding:7px 10px}.status{font-size:12px}.project-visual .rotated-research-image{max-height:220px}.video-figure figcaption{font-size:12px}.cv-hero{grid-template-columns:1fr;gap:25px;padding:35px 0 10px}.cv-hero h1{font-size:45px}.cv-hero h1 span{font-size:30px}.cv-intro{border-left:none;border-top:1px solid var(--line);padding:25px 0 0}.cv-intro h2{font-size:27px}.cv-email{font-size:14px}.cv-actions{gap:16px 22px;margin:25px 0 45px}.cv-actions .button,.cv-actions .text-link{font-size:12px}.cv-grid,.cv-experience{grid-template-columns:1fr;gap:0}.cv-section{padding:25px 0 30px}.cv-section h2{font-size:27px}.cv-entry h3{font-size:20px}.cv-entry p{font-size:14px}.cv-experience .cv-entry+ .cv-entry{padding-top:22px;border-top:1px solid var(--line)}.cv-document .section-head{display:block}.cv-document .section-head .text-link{margin-top:12px}}

/* Allow project content to shrink below the intrinsic video/table width. */
.project-body>*{min-width:0}.video-figure video{min-width:0;max-width:100%}

/* White surfaces and a readable type hierarchy across all six pages. */
body{font-size:16px;-webkit-font-smoothing:antialiased;overflow-wrap:anywhere}
h1,h2,h3{letter-spacing:-.035em}.hero-copy h1{letter-spacing:-.055em;font-weight:750}
.nav-links{font-size:14px}.brand small{font-size:11px;letter-spacing:.09em}
.tags span{font-family:Arial,"Helvetica Neue",Helvetica,"Pretendard Variable",sans-serif;font-size:14px;font-weight:600;letter-spacing:0;line-height:1.5;padding:8px 12px;background:#fff;border-color:#d5ded9;border-radius:5px;color:#284a43}
.status{font-size:14px;font-weight:500}.eyebrow{font-size:12px;letter-spacing:.1em}.project-copy .eyebrow{font-size:12px}
.project-copy>p,.section-head p,.step p,.cv-entry p{font-size:16px;line-height:1.85}.lead,.story-section p{font-size:17px;line-height:1.9}
.button,.text-link{font-size:14px}.gallery figcaption,.hero-figure figcaption,.video-figure figcaption{font-size:14px;line-height:1.75;color:#4a625b}
.toc a{font-size:14px;line-height:1.65}.toc strong,.section-index,.step b{font-size:12px;font-weight:600;letter-spacing:.06em}
.metric-label,.metric-detail,.source-note,.footer{font-size:13px}.metric-detail{line-height:1.7}.source-note{line-height:1.85}
.about,.profile-entry,.project-hero .hero-figure,.image-button.clean{background:#fff}.about{border-top:1px solid var(--line)}
.profile-entry:hover{background:#f5f8f6}.hero-art:before{display:none}.scope{background:#f8faf9;border-left-color:#9bae9f}.data-table th,.process-flow span{background:#f5f8f6}
.hero-art .annotated-hand{aspect-ratio:1241/1268}.image-credit{font-size:10px}.visual-index{font-size:10px}
@media(max-width:720px){.hero-copy h1{font-size:44px}.lead,.story-section p{font-size:16px}.project-copy>p,.section-head p,.step p,.about-copy{font-size:15px}.tags span{font-size:13px;padding:7px 10px}.status{font-size:13px}.project-copy .eyebrow{font-size:11px}.gallery figcaption,.hero-figure figcaption,.video-figure figcaption{font-size:13px}.toc a{font-size:13px}.metric-label,.metric-detail{font-size:12px}.source-note,.footer{font-size:12px}.image-credit,.visual-index{font-size:9px}.nav-links{font-size:14px}}

/* Prefer Arial for Latin letters and numerals; use Pretendard for Korean glyphs. */
[lang="en"],.cv-entry h3,.cv-hero h1 span{letter-spacing:normal}
.tags span{font-weight:500;letter-spacing:normal}.eyebrow,.brand small,.profile-entry small{letter-spacing:.035em}

/* Contact details and equivalent Korean/English navigation. */
.profile-contact{display:flex;flex-wrap:wrap;gap:8px 20px;margin:14px 0 0;font-style:normal;font-size:14px;line-height:1.7;max-width:720px;color:var(--muted)}
.profile-contact a{text-decoration:underline;text-underline-offset:4px;text-decoration-color:#bac7bf;overflow-wrap:anywhere}.profile-contact a:hover{color:var(--ink)}
.language-switch{font-weight:700;border-bottom:1px solid #9caa8f;white-space:nowrap}
html[lang="en"] .hero-copy h1{font-size:clamp(38px,4.5vw,65px);letter-spacing:-.04em}
html[lang="en"] .project-hero h1{font-size:clamp(32px,3.5vw,50px)}
html[lang="en"] .sensor-overlay text{font-size:33px}
html[lang="en"] .project-copy h3{font-size:29px;line-height:1.22;letter-spacing:-.025em}
@media(min-width:721px) and (max-width:1000px){.nav-links{gap:14px;font-size:13px}.nav{gap:15px}.brand small{font-size:9px}}
@media(max-width:720px){.profile-contact{font-size:13px;gap:7px 16px}.cv-hero .profile-contact{display:grid;gap:8px}html[lang="en"] .hero-copy h1{font-size:40px}html[lang="en"] .project-copy h3{font-size:26px}html[lang="en"] .section-head h2{font-size:30px}}

/* Persistent language buttons, including on small screens. */
.nav-tools{display:flex;align-items:center;gap:24px}
.language-toggle{display:inline-flex;align-items:stretch;flex-shrink:0;border:1px solid #b6c5bd;border-radius:7px;background:#fff;padding:3px;gap:2px}
.language-toggle .language-switch{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:4px;padding:7px 11px;font-size:13px;font-weight:600;line-height:1.4;letter-spacing:0;color:var(--muted);white-space:nowrap}
.language-toggle .language-switch:hover{background:#edf3ef;color:var(--ink)}
.language-toggle .language-switch[aria-current="page"]{background:var(--ink);color:#fff}
@media(max-width:1000px){.nav-tools{gap:12px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;left:0;right:0;top:100%;padding:18px 5%;background:#fff;border-bottom:1px solid var(--line);flex-wrap:wrap;gap:20px}.nav-links.is-open{display:flex}}
@media(max-width:520px){.nav{display:grid;grid-template-columns:1fr auto;gap:9px 14px;padding:12px 0;min-height:0}.nav-tools{display:contents}.brand{grid-column:1;grid-row:1}.brand small{font-size:9px}.language-toggle{grid-column:1;grid-row:2;justify-self:start}.language-toggle .language-switch{padding:6px 12px;font-size:13px}.menu-toggle{grid-column:2;grid-row:1 / 3;align-self:center}.nav-links{top:100%}}