@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap');

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 14.5px;
  line-height: 1.7;
  color: #1a1a2e;
  background: #fff;
}

a {
  color: #1d6f6f;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ── Navigation ── */
header {
  border-bottom: 1px solid #e2e5ea;
  padding: 14px 0;
  position: sticky;
  top: 0;
  background: #fff;
  z-index: 100;
}

nav {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-logo {
  font-weight: 600;
  font-size: 14px;
  color: #1a1a2e;
  margin-right: auto;
  letter-spacing: 0.01em;
}

nav a {
  color: #555;
  font-size: 14px;
}

/* ── Main container ── */
.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Profile section ── */
.profile {
  display: flex;
  gap: 36px;
  align-items: flex-start;
  padding: 48px 0 36px;
  border-bottom: 1px solid #e2e5ea;
}

.profile-photo {
  flex-shrink: 0;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid #dde1e7;
}

.profile-photo-placeholder {
  flex-shrink: 0;
  width: 140px;
  height: 140px;
  border-radius: 12px;
  background: #e4e7ec;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  color: #b0b8c4;
  border: 1px solid #dde1e7;
}

.profile-info h1 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 4px;
  color: #1a1a2e;
  letter-spacing: -0.01em;
}

.profile-info .title {
  color: #1d6f6f;
  font-size: 13.5px;
  font-weight: 500;
  margin-bottom: 2px;
}

.profile-info .org {
  color: #666;
  font-size: 13px;
  margin-bottom: 16px;
}

.social-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12.5px;
  font-weight: 500;
  color: #444;
  background: #fff;
  border: 1px solid #d8dce3;
  padding: 4px 11px;
  border-radius: 6px;
  transition: border-color 0.15s, background 0.15s;
}

.social-links a:hover {
  background: #eef5f5;
  border-color: #1d6f6f;
  text-decoration: none;
}

/* ── Section ── */
section {
  padding: 30px 0;
  border-bottom: 1px solid #e2e5ea;
}

section:last-child {
  border-bottom: none;
}

section h2 {
  font-size: 16.5px;
  font-weight: 700;
  margin-bottom: 16px;
  color: #1d6f6f;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ── Scroll containers ── */
.scroll-box,
.scroll-box-sm {
  overflow-y: auto;
  border: 1px solid #e2e5ea;
  border-radius: 8px;
  padding: 14px 16px;
  background: #fff;
}

.scroll-box { max-height: 560px; }
.scroll-box-sm { max-height: 154px; }

.scroll-box::-webkit-scrollbar,
.scroll-box-sm::-webkit-scrollbar {
  width: 4px;
}

.scroll-box::-webkit-scrollbar-track,
.scroll-box-sm::-webkit-scrollbar-track {
  background: transparent;
}

.scroll-box::-webkit-scrollbar-thumb,
.scroll-box-sm::-webkit-scrollbar-thumb {
  background: #cdd1d8;
  border-radius: 4px;
}

.scroll-box::-webkit-scrollbar-thumb:hover,
.scroll-box-sm::-webkit-scrollbar-thumb:hover {
  background: #a0a8b4;
}

/* ── News ── */
.news-list {
  list-style: none;
}

.news-list li {
  display: flex;
  gap: 8px;
  margin-bottom: 2px;
  font-size: 13px;
  align-items: baseline;
}

.news-date {
  flex-shrink: 0;
  color: #999;
  font-size: 12px;
  width: 80px;
  font-variant-numeric: tabular-nums;
}

.news-date-wide {
  flex-shrink: 0;
  color: #999;
  font-size: 12px;
  width: 150px;
  font-variant-numeric: tabular-nums;
}

.badge-new {
  display: inline-block;
  background: #1d6f6f;
  color: white;
  font-size: 9.5px;
  padding: 1px 5px;
  border-radius: 3px;
  margin-left: 6px;
  vertical-align: middle;
  font-weight: 600;
  letter-spacing: 0.04em;
}

/* ── Research interests ── */
.interests {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.tag {
  background: #fff;
  border: 1px solid #d4dfe0;
  padding: 3px 11px;
  border-radius: 20px;
  font-size: 12.5px;
  color: #1d6f6f;
  font-weight: 500;
}

/* ── Publications ── */
.pub-year {
  font-size: 11px;
  font-weight: 700;
  color: #1d6f6f;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 14px 0 6px;
  padding-bottom: 4px;
  border-bottom: 1px solid #e2e5ea;
}

.pub-year:first-child {
  margin-top: 0;
}

.pub-item {
  margin-bottom: 10px;
  padding-left: 4px;
}

.pub-title-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.pub-num {
  flex-shrink: 0;
  font-size: 10px;
  color: #bbb;
  width: 22px;
  font-variant-numeric: tabular-nums;
}

.pub-title {
  font-weight: 600;
  font-size: 11.5px;
  color: #1a1a2e;
  line-height: 1.5;
  flex: 1;
}

.pub-pdf {
  flex-shrink: 0;
  font-size: 10px;
  font-weight: 500;
  color: #1d6f6f;
  border: 1px solid #a8d0d0;
  padding: 1px 7px;
  border-radius: 4px;
  white-space: nowrap;
  background: #f0fafa;
}

.pub-pdf:hover {
  background: #d6f0f0;
  text-decoration: none;
}

.pub-authors {
  font-size: 10.5px;
  color: #777;
  margin: 1px 0;
}

.pub-authors .me {
  font-weight: 600;
  color: #1a1a2e;
}

.pub-venue {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  font-style: normal;
  color: #1d6f6f;
  background: #eef7f7;
  border: 1px solid #b8dede;
  padding: 1px 7px;
  border-radius: 4px;
  margin-top: 2px;
  letter-spacing: 0.01em;
}

.pub-links {
  display: inline-flex;
  gap: 5px;
  margin-top: 3px;
  flex-wrap: wrap;
}

.pub-links a {
  font-size: 10px;
  font-weight: 500;
  color: #1d6f6f;
  border: 1px solid #a8d0d0;
  padding: 1px 7px;
  border-radius: 4px;
  background: #f0fafa;
}

.pub-links a:hover {
  background: #d6f0f0;
  text-decoration: none;
}

/* ── Education ── */
.edu-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.edu-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.edu-org {
  font-size: 14px;
  font-weight: 600;
  color: #1a1a2e;
}

.edu-details {
  list-style: disc;
  padding-left: 18px;
  margin: 0;
}

.edu-details li {
  font-size: 12.5px;
  color: #666;
  line-height: 1.6;
}

/* ── Footer ── */
footer {
  background: #f8f8f8;
  border-top: 1px solid #e2e5ea;
  padding: 24px 0;
  margin-top: 20px;
}

.footer-inner {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12.5px;
  color: #999;
}

.footer-tagline {
  font-style: italic;
}

/* ── Responsive ── */
@media (max-width: 600px) {
  .profile {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .social-links {
    justify-content: center;
  }

  .footer-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}