:root {
  --white: #ffffff;
  --black: #1a1a1a;
  --pink: #d1567e;
  --pink-soft: #f6d9e2;
  --gray: #6b6b6f;
  --gray-light: #8a8a8e;
  --border: #e4e2e3;
  --max-width: 760px;
  --serif: Georgia, "Times New Roman", Times, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--black);
  background: var(--white);
  line-height: 1.65;
  font-size: 16px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main { flex: 1 0 auto; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

a { color: var(--pink); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 700;
  line-height: 1.25;
  margin: 0 0 14px;
  color: var(--black);
}

h1 { font-size: 32px; }
h2 { font-size: 22px; margin-bottom: 20px; }
h3 { font-size: 17px; margin-bottom: 6px; }

p { margin: 0 0 16px; }

.muted { color: var(--gray); }

/* Header / tab navigation */
.site-header {
  border-bottom: 1px solid var(--border);
  padding: 22px 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 24px;
  flex-wrap: wrap;
}

.nav { margin-left: auto; }

.logo {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 19px;
  color: var(--black);
}
.logo:hover { text-decoration: none; }

.nav {
  display: flex;
  gap: 28px;
}

.nav a {
  color: var(--gray);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
}
.nav a:hover { color: var(--black); text-decoration: none; }
.nav a[aria-current="page"] {
  color: var(--black);
  border-bottom-color: var(--pink);
}

.lang-toggle {
  border: 1px solid var(--border);
  background: var(--white);
  color: var(--black);
  padding: 5px 12px;
  border-radius: 3px;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.04em;
  cursor: pointer;
}
.lang-toggle:hover { border-color: var(--pink); color: var(--pink); }

/* Page header (non-home pages) */
.page-header {
  padding: 48px 0 8px;
}
.eyebrow {
  color: var(--pink);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 12px;
  margin-bottom: 10px;
}

/* Bio / home hero */
.bio {
  padding: 48px 0 16px;
}
.bio-inner {
  display: flex;
  gap: 36px;
  align-items: flex-start;
}
.bio-photo {
  flex: 0 0 210px;
  width: 210px;
  aspect-ratio: 1 / 1;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.bio-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}
.bio-text { flex: 1 1 auto; }
.bio-role { font-size: 16px; color: var(--gray); margin-bottom: 12px; }
.bio-desc { color: var(--black); max-width: 520px; }

.actions { display: flex; gap: 12px; margin-top: 20px; flex-wrap: wrap; }

.bio-about {
  margin-top: 20px;
}
.bio-about p:last-child { margin-bottom: 0; }

.btn {
  display: inline-block;
  padding: 9px 18px;
  border-radius: 3px;
  font-weight: 600;
  font-size: 13px;
  border: 1px solid var(--black);
  color: var(--black);
}
.btn:hover { background: var(--black); color: var(--white); text-decoration: none; }
.btn-accent {
  border-color: var(--pink);
  color: var(--pink);
}
.btn-accent:hover { background: var(--pink); color: var(--white); }

/* Sections */
.section { padding: 40px 0; border-top: 1px solid var(--border); }
.section:first-of-type { border-top: none; }

.quote {
  border-left: 3px solid var(--pink);
  margin: 0 0 8px;
  padding: 4px 20px;
  font-style: italic;
  color: var(--black);
}
.quote-source { font-size: 13px; }

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 8px;
  padding: 0;
  list-style: none;
}
.tag-list li {
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 5px 12px;
  font-size: 13px;
  color: var(--gray);
}

/* Publication card */
.publication {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 22px 24px;
  margin-top: 8px;
}
.publication + .publication { margin-top: 18px; }
.publication .pub-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--pink);
  background: var(--pink-soft);
  padding: 3px 9px;
  border-radius: 3px;
  margin-bottom: 10px;
}
.publication h3 { font-size: 19px; margin-bottom: 4px; }
.pub-authors { font-size: 14px; color: var(--gray); margin-bottom: 12px; }
.pub-authors strong { color: var(--black); font-weight: 600; }
.pub-abstract { font-size: 14.5px; color: var(--black); margin-bottom: 14px; }
.pub-link { font-weight: 600; font-size: 14px; }

/* Link list (media) */
.link-list { list-style: none; padding: 0; margin: 0; }
.link-list li {
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}
.link-list li:last-child { border-bottom: none; }
.link-list .link-title { font-weight: 600; font-size: 15.5px; }
.link-desc { display: block; color: var(--gray); font-size: 14px; margin-top: 3px; }

/* Projects */
.project-list { list-style: none; padding: 0; margin: 0; }
.project-item {
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
}
.project-item:last-child { border-bottom: none; }
.project-item h3 a { color: var(--black); }
.project-item h3 a:hover { color: var(--pink); text-decoration: none; }
.project-item p { margin: 4px 0 0; color: var(--gray); font-size: 14.5px; }
.mono { font-family: ui-monospace, "SF Mono", monospace; color: var(--pink); font-size: 0.95em; }

/* Contact */
.contact-list { list-style: none; padding: 0; margin: 0; }
.contact-list li { padding: 10px 0; font-size: 15.5px; }
.contact-list .label { display: inline-block; width: 90px; color: var(--gray); font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  text-align: center;
  color: var(--gray-light);
  font-size: 13px;
  margin-top: 24px;
  flex-shrink: 0;
}

/* Justified body text */
.bio-desc,
.bio-about p,
.page-header p,
.quote p,
.pub-abstract,
.publication .muted,
.project-item p {
  text-align: justify;
  hyphens: auto;
}

@media (max-width: 620px) {
  .nav { gap: 16px; flex-wrap: wrap; margin-left: 0; }
  .bio-inner { flex-direction: column; align-items: center; text-align: center; }
  .bio-desc { margin-left: auto; margin-right: auto; }
  .actions { justify-content: center; }
  .header-inner { justify-content: center; text-align: center; }
}