:root {
  color-scheme: light;
  --navy: #3333b2;
  --text: #243b53;
  --muted: #627d98;
  --rule: #d9e2ec;
  --paper: #ffffff;
  --canvas: #f8fafc;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 19px;
  line-height: 1.65;
}

a {
  color: var(--navy);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: #486581;
}

.site-header {
  border-bottom: 1px solid var(--rule);
}

.site-nav {
  width: min(100% - 48px, 1080px);
  min-height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.site-name,
.nav-links a {
  color: var(--navy);
  text-decoration: none;
}

.site-name {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.15;
}

.site-name-korean {
  margin-top: 3px;
  color: #8a94a3;
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.04em;
}

.nav-links {
  display: flex;
  gap: 25px;
}

.nav-links a[aria-current="page"] {
  font-weight: 700;
}

.home-layout,
.page-content {
  width: min(100% - 48px, 980px);
  margin: 64px auto 84px;
}

.home-layout {
  display: grid;
  grid-template-columns: 270px minmax(0, 1fr);
  align-items: start;
  gap: 52px;
}

.profile-photo {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 50%;
}

h1,
h2 {
  color: var(--navy);
  line-height: 1.25;
}

h1 {
  margin: 0 0 20px;
  font-size: clamp(32px, 4vw, 40px);
  font-weight: 600;
}

.section-heading {
  font-size: 26px;
}

.section-note {
  margin: -12px 0 24px;
  color: var(--muted);
  font-size: 16px;
}

h2 {
  margin: 0 0 12px;
  font-size: 26px;
  font-weight: 600;
}

.home-intro h1,
.project h2 {
  font-weight: 400;
}

.project h2 {
  font-size: 22px;
}

.project-details summary {
  list-style: none;
  color: var(--navy);
  cursor: pointer;
  line-height: 1.25;
}

.project-details summary::-webkit-details-marker {
  display: none;
}

.project-details .project-title {
  display: block;
  font-size: 22px;
}

.project-details .coauthors {
  display: block;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 15px;
  font-style: italic;
}

.project-details summary::after {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  content: "▾";
  font-size: 18px;
}

.project-details[open] summary::after {
  content: "▴";
}

.project-details summary:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.home-intro p {
  margin: 0 0 18px;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 28px !important;
}

.project {
  padding: 0 0 34px;
  margin: 0 0 34px;
  border-bottom: 1px solid var(--rule);
}

.project:last-child {
  border-bottom: 0;
}

.project-compact {
  padding: 0;
  margin-bottom: 18px;
  border-bottom: 0;
}

.project p {
  margin: 0 0 22px;
}

.project .coauthors {
  margin: -4px 0 12px;
  color: var(--muted);
  font-size: 15px;
  font-style: italic;
}

.figure-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
  gap: 20px;
}

figure {
  margin: 0;
}

figure img {
  display: block;
  width: 100%;
  background: var(--canvas);
  border: 1px solid var(--rule);
  border-radius: 3px;
}

figure img {
  height: 260px;
  object-fit: contain;
}

.parent-composition {
  height: auto;
  object-fit: contain;
  object-position: center;
}

figcaption {
  padding-top: 8px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.page-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 22px;
}

.page-heading h1 {
  margin-bottom: 0;
}

.download-link {
  flex-shrink: 0;
}

.cv-contact {
  margin: -8px 0 30px;
}

.cv-section {
  padding: 18px 0 8px;
  border-top: 1px solid var(--rule);
}

.cv-section h2 {
  margin-bottom: 14px;
  font-size: 20px;
  text-transform: uppercase;
}

.cv-section p {
  margin: 4px 0;
}

.cv-entry {
  margin: 0 0 18px;
}

.cv-entry > strong {
  color: var(--navy);
}

.cv-entry p {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.cv-entry p > span:last-child {
  flex-shrink: 0;
  color: var(--muted);
  font-style: italic;
}

.site-footer {
  width: min(100% - 48px, 980px);
  margin: 0 auto;
  padding: 18px 0 28px;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 640px) {
  .site-nav {
    width: min(100% - 32px, 1080px);
    min-height: 68px;
    gap: 12px;
  }

  .site-name {
    font-size: 17px;
  }

  .site-name-korean {
    font-size: 12px;
  }

  .nav-links {
    gap: 14px;
  }

  .home-layout,
  .page-content,
  .site-footer {
    width: min(100% - 32px, 980px);
  }

  .home-layout {
    grid-template-columns: 1fr;
    gap: 25px;
    margin-top: 34px;
  }

  .profile-photo {
    width: min(210px, 65%);
  }

  .figure-grid {
    grid-template-columns: 1fr;
  }

  .page-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .cv-entry p {
    display: block;
  }

  .cv-entry p > span:last-child {
    display: block;
  }
}