@font-face {
  font-family: 'Noto Sans';
  font-style: italic;
  font-weight: 300;
  font-stretch: normal;
  font-display: swap;
  src: url(fonts/noto-sans-italic-300.ttf) format('truetype');
}
@font-face {
  font-family: 'Noto Sans';
  font-style: italic;
  font-weight: 400;
  font-stretch: normal;
  font-display: swap;
  src: url(fonts/noto-sans-italic-400.ttf) format('truetype');
}
@font-face {
  font-family: 'Noto Sans';
  font-style: normal;
  font-weight: 300;
  font-stretch: normal;
  font-display: swap;
  src: url(fonts/noto-sans-normal-300.ttf) format('truetype');
}
@font-face {
  font-family: 'Noto Sans';
  font-style: normal;
  font-weight: 400;
  font-stretch: normal;
  font-display: swap;
  src: url(fonts/noto-sans-normal-400.ttf) format('truetype');
}
@font-face {
  font-family: 'Noto Sans';
  font-style: normal;
  font-weight: 500;
  font-stretch: normal;
  font-display: swap;
  src: url(fonts/noto-sans-normal-500.ttf) format('truetype');
}
@font-face {
  font-family: 'Noto Sans';
  font-style: normal;
  font-weight: 700;
  font-stretch: normal;
  font-display: swap;
  src: url(fonts/noto-sans-normal-700.ttf) format('truetype');
}
@font-face {
  font-family: 'Noto Sans KR';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(fonts/noto-sans-kr-names.ttf) format('truetype');
}

@font-face {
  font-family: 'Noto Sans SC';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(fonts/noto-sans-sc-names.ttf) format('truetype');
}

@font-face {
  font-family: 'Noto Sans';
  font-style: normal;
  font-weight: 600;
  font-stretch: normal;
  font-display: swap;
  src: url(fonts/noto-sans-normal-600.ttf) format('truetype');
}

:root {
  color-scheme: light;
  --background: #fff;
  --ink: #000;
  --muted: #828282;
  --accent: #806348;
  --line: rgba(0, 0, 0, .1);
  --soft: #f6f2ed;
  --width: 930px;
  --research-figure-width: 500px;
}
* { box-sizing: border-box; }
html { font-size: 16px; scroll-behavior: smooth; }
body { margin: 0; min-height: 100vh; display: flex; flex-direction: column; padding-top: 56px; background: var(--background); color: var(--ink); font: 300 1rem/1.5 "Noto Sans", Arial, sans-serif; text-align: left; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent); text-decoration: underline; }
a:focus-visible, object:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
.skip-link { position: fixed; top: -80px; left: 16px; padding: 8px 16px; background: var(--background); z-index: 10; }
.skip-link:focus { top: 8px; }
.wrap { width: 100%; max-width: var(--width); padding-right: 15px; padding-left: 15px; margin-inline: auto; }
.site-header { position: fixed; top: 0; right: 0; left: 0; z-index: 5; border-bottom: 1px solid var(--line); background: rgba(255,255,255,.95); }
.header-inner { min-height: 56px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.wordmark { color: var(--ink); font-size: 20px; font-weight: 600; }
.wordmark strong { font-weight: 600; }
.wordmark:hover { text-decoration: none; }
.header-inner:has(nav a[aria-current="page"][href="index.html"]) .wordmark { visibility: hidden; }
nav { display: flex; align-items: center; margin-left: auto; gap: 0; }
nav a { display: block; padding: 8px; color: var(--ink); font-size: 16px; font-weight: 400; text-transform: lowercase; }
nav a[aria-current="page"] { color: var(--accent); font-weight: 500; }
nav a:hover { color: var(--accent); text-decoration: none; }
main { flex: 1; padding-top: 48px; padding-bottom: 48px; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { font-family: inherit; font-weight: 400; line-height: 1.2; margin-bottom: 8px; scroll-margin-top: 66px; }
h1 { font-size: 40px; }
h1 strong { font-weight: 600; }
h2 { font-size: 32px; }
h3 { font-size: 16px; font-weight: 500; margin-bottom: 4px; }
p { margin-bottom: 16px; }
em, i { font-weight: 400; }
strong, b { font-weight: 600; }
.profile-name { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 18px; margin-bottom: 24px; font-weight: 600; }
.native-names { font-weight: 400; font-size: 20px; font-family: "Noto Sans", "Noto Sans CJK KR", "Malgun Gothic", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif; }
.bio-grid { display: grid; grid-template-columns: minmax(0, 1fr) 30%; gap: 16px; align-items: start; }
.placeholder { color: var(--ink); }
.portrait { margin: 0 0 16px; }
.portrait img { display: block; width: 100%; height: auto; border-radius: 4px; box-shadow: 0 2px 5px 0 rgba(0,0,0,.16), 0 2px 10px 0 rgba(0,0,0,.12); }
.contact-lines { margin: 16px 0 0; font-size: 16px; }
.contact-lines p { margin-bottom: 8px; }
.contact-label { display: inline-block; width: 68px; font-weight: 600; }
.follow-links { display: inline-flex; gap: 20px; }
.content-section { margin-top: 24px; }
.content-section > h2, .section-heading h2 { text-transform: lowercase; }
.research-list { padding-top: 8px; }
.research-list > p { margin-bottom: 24px; }
.research-subheading { color: var(--accent); font-size: 20px; font-weight: 600; margin-top: 28px; margin-bottom: 20px; }
.research-papers .paper { display: block; margin-bottom: 32px; }
.selected-paper-number { color: var(--accent); font-weight: 600; }
.paper-description { grid-column: 1 / -1; display: grid; grid-template-columns: var(--research-figure-width) minmax(0, 1fr); gap: 24px; align-items: start; margin-top: 16px; }
.representative-figure { margin: 0; width: var(--research-figure-width); max-width: 100%; }
.representative-figure img { display: block; width: 100%; height: auto; }
.representative-figure > a { display: block; cursor: zoom-in; }
.representative-figure figcaption { margin-top: 8px; color: #555555; font-size: 12px; font-weight: 400; line-height: 1.5; }
.paper-summary { min-width: 0; }
.paper-summary .research-topic { margin-top: 0; }
.research-description { margin-top: 16px; margin-bottom: 0; line-height: 1.6; }
.research-topic { color: var(--accent); margin-top: 16px; margin-bottom: 8px; font-weight: 600; line-height: 1.5; }
.research-bullets { margin: 0; padding-left: 22px; line-height: 1.6; }
.research-bullets li { margin-bottom: 8px; }
.research-bullets li:last-child { margin-bottom: 0; }
.research-closing { margin-top: 12px; margin-bottom: 0; line-height: 1.6; }
.news-list { padding: 0; margin: 16px 0 0; list-style: none; }
.news-list li { display: grid; grid-template-columns: 20% minmax(0,1fr); padding: 8px 4px; }
.news-date { font-weight: 600; padding-right: 16px; }
.section-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; }
.section-heading a { font-size: 14px; }
.page-intro { margin: 16px 0 32px; }
.paper-list { margin: 0; padding: 0; list-style: none; }
.paper { display: grid; grid-template-columns: 125px minmax(0,1fr); gap: 30px; margin-bottom: 24px; }
.paper-year { align-self: start; margin-top: 4px; padding: 3px 6px; border-radius: 4px; background: var(--accent); color: #fff; font-size: 12px; font-weight: 600; line-height: 1; text-align: center; box-shadow: 0 2px 5px rgba(0,0,0,.2); }
.paper-title { font-size: 16px; font-weight: 500; line-height: 1.5; margin-bottom: 0; }
.paper-title a { color: var(--ink); }
.paper-authors { margin-bottom: 0; }
.paper-authors strong { font-weight: 400; border-bottom: 1px solid; }
.paper-venue { margin-bottom: 0; font-style: italic; font-weight: 400; }
.paper-links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 6px; }
.paper-links a, .button { display: inline-block; padding: 4px 16px; border: 1px solid var(--ink); border-radius: 2px; color: var(--ink); font-size: 10px; font-weight: 400; line-height: 1.5; text-transform: uppercase; }
.paper-links a:hover, .button:hover { color: var(--accent); border-color: var(--accent); text-decoration: none; }
.author-note { color: var(--muted); font-size: 12px; margin: 0 0 20px; }
.paper-authors abbr { text-decoration: none; cursor: help; }
.cv-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 24px; margin: 24px 0; }
.cv-toolbar p { margin: 0; }
.button { font-size: 12px; white-space: nowrap; }
.pdf-viewer { display: block; width: 100%; height: 1000px; border: 1px solid var(--line); background: #fff; }
.pdf-fallback { padding: 32px; }
footer { border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.footer-inner { padding-top: 32px; padding-bottom: 32px; text-align: center; }
.footer-inner p { margin: 0; }
@media (max-width: 575px) {
  .header-inner { gap: 12px; }
  .wordmark { font-size: 16px; }
  nav a { font-size: 15px; padding-inline: 7px; }
  .header-inner:has(nav a[aria-current="page"][href="index.html"]) .wordmark { display: none; }
  main { padding-top: 32px; }
  h1 { font-size: 36px; }
  .bio-grid { display: flex; flex-direction: column; gap: 0; }
  .portrait { width: 100%; order: -1; margin-bottom: 24px; }
  .news-list li { grid-template-columns: 30% minmax(0,1fr); }
  .news-date { font-size: 14px; padding-right: 12px; }
  .paper { grid-template-columns: 1fr; gap: 8px; }
  .paper-year { width: 125px; }
  .cv-toolbar { align-items: start; flex-direction: column; gap: 15px; }
  .pdf-viewer { height: 650px; }
}
@media (max-width: 700px) {
  .paper-description { grid-template-columns: minmax(0, 1fr); gap: 16px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

.paper-note { margin-bottom: 0; font-size: 14px; }

.native-names [lang="ko"] { font-family: "Noto Sans KR", sans-serif; }
.native-names [lang="zh-Hans"] { font-family: "Noto Sans SC", sans-serif; }

#news-heading, #research-heading { font-weight: 600; }

.paper-citation { margin-bottom: 0; }