/* ============================================================
   Base / Reset
   ============================================================ */
*, *::after, *::before { box-sizing: border-box; }

html { font-size: 62.5%; scroll-behavior: smooth; }

body {
  color: #212121;
  background-color: #FAFAFA;
  font-family: "Merriweather", serif;
  font-size: 1.6em;
  font-weight: 300;
  line-height: 1.8em;
  margin: 0;
  padding: 0;
}
@media (max-width: 480px) { body { font-size: 1.5em; line-height: 1.7em; } }

a { color: #1565c0; text-decoration: none; }
a:hover { color: #1e88e5; }

p { margin: 1.6rem 0; }

h1, h2, h3, h4 {
  font-family: "Lato", sans-serif;
  font-weight: 700;
  color: #111;
  margin: 0 0 1.6rem;
}
h1 { font-size: 3.0rem; line-height: 3.4rem; }
h2 { font-size: 2.4rem; line-height: 3.0rem; margin-bottom: 2rem; }
h3 { font-size: 1.85rem; line-height: 2.4rem; margin-bottom: 0.4rem; }

b, strong { font-weight: 700; }

/* ============================================================
   Navigation
   ============================================================ */
.navigation {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  height: 5.6rem;
  background: rgba(250, 250, 250, 0.96);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid #e8e8e8;
  z-index: 1000;
}
.nav-inner {
  display: flex;
  align-items: center;
  max-width: 800px;
  margin: 0 auto;
  height: 100%;
  padding: 0 20px;
  position: relative;
}
.navigation a, .navigation span {
  font-size: 1.5rem;
  font-family: "Lato", sans-serif;
  font-weight: 700;
  line-height: 5.6rem;
  color: #212121;
  text-decoration: none;
}
.navigation a:hover, .navigation a:focus { color: #1565c0; }
.navigation-title {
  flex: 0 0 auto;
  margin-right: auto;
  font-size: 1.7rem !important;
  letter-spacing: 0.01em;
}
.navigation-list { list-style: none; margin: 0; padding: 0; display: flex; }
.navigation-item { display: inline-block; }
.navigation-link { margin: 0 1.2rem; }
.navigation-link.active { color: #1565c0; border-bottom: 2px solid #1565c0; }

#menu-toggle { display: none; }
.menu-button { display: none; cursor: pointer; color: #212121; line-height: 5.6rem; }

@media (max-width: 600px) {
  .menu-button { display: block; }
  .navigation-list {
    display: none; flex-direction: column;
    position: absolute; top: 5.6rem; right: 0; width: 100%;
    background: #FAFAFA; border-bottom: 1px solid #e8e8e8; padding: 4px 0;
  }
  #menu-toggle:checked ~ .navigation-list { display: flex; }
  .navigation-item { display: block; }
  .navigation-link { display: block; margin: 0; padding: 8px 20px; line-height: 3.6rem; }
}

/* ============================================================
   Layout
   ============================================================ */
.wrapper {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px;
  padding-top: 5.6rem;
}
@media (max-width: 480px) { .wrapper { padding-left: 16px; padding-right: 16px; } }

/* Section styling */
.section-block {
  padding: 3.6rem 0;
  border-top: 1px solid #ebebeb;
}
.section-block:first-of-type { border-top: none; }

.section-title {
  position: relative;
  display: inline-block;
  margin-bottom: 2.4rem;
  padding-bottom: 0.8rem;
}
.section-title::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 36px; height: 3px;
  background: #1565c0;
  border-radius: 2px;
}

/* ============================================================
   About
   ============================================================ */
#about {
  display: flex;
  gap: 3.2rem;
  align-items: flex-start;
  padding: 3.6rem 0;
}

.about-profile {
  flex: 0 0 160px;
  text-align: center;
}
.about-profile .avatar img {
  width: 140px; height: 140px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid #e8e8e8;
}
.about-profile .name {
  font-family: "Lato", sans-serif;
  font-size: 1.9rem;
  font-weight: 700;
  color: #111;
  margin: 1.0rem 0 0.2rem;
  line-height: 1.3;
}
.about-profile .affil {
  font-family: "Lato", sans-serif;
  font-size: 1.15rem;
  color: #777;
  margin: 0 0 0.8rem;
  line-height: 1.5;
}
.social-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.2rem;
  margin-top: 0.6rem;
}
.social-links a {
  color: #555;
  display: inline-flex;
  align-items: center;
  padding: 4px 5px;
  border-radius: 4px;
  transition: color 0.15s, background 0.15s;
}
.social-links a:hover { color: #1565c0; background: #e8f0fe; }
.social-links svg { width: 2.0rem; height: 2.0rem; fill: currentColor; }

.about-text { flex: 1; min-width: 0; padding-top: 0.4rem; }
.about-text p { margin: 1.2rem 0; font-size: 0.95em; line-height: 1.85; }
.about-text p:first-child { margin-top: 0; }

.interest-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1.4rem 0 1.6rem;
}
.interest-tag {
  font-family: "Lato", sans-serif;
  font-size: 1.15rem;
  font-weight: 400;
  padding: 3px 10px;
  border-radius: 20px;
  background: #e8f0fe;
  color: #1565c0;
  border: 1px solid #c5d8fb;
}

@media (max-width: 640px) {
  #about { flex-direction: column; align-items: center; }
  .about-profile { width: 100%; }
}

/* ============================================================
   News
   ============================================================ */
.news-scroll {
  max-height: 196px;
  overflow-y: auto;
  border: 1px solid #e4e4e4;
  border-radius: 6px;
  margin-top: 0.4rem;
  scrollbar-width: thin;
  scrollbar-color: #c8c8c8 #f5f5f5;
}
.news-scroll::-webkit-scrollbar { width: 5px; }
.news-scroll::-webkit-scrollbar-track { background: #f8f8f8; }
.news-scroll::-webkit-scrollbar-thumb { background: #c8c8c8; border-radius: 3px; }

.news-table { border-collapse: collapse; width: 100%; }
.news-table tr { border-bottom: 1px solid #f0f0f0; }
.news-table tr:last-child { border-bottom: none; }
.news-table td {
  padding: 0.9rem 1.2rem;
  border: none;
  vertical-align: top;
  font-size: 0.90em;
  line-height: 1.6;
}
.date-badge-td { white-space: nowrap; padding-right: 0.8rem; }
.date-badge {
  display: inline-block;
  padding: 1px 7px;
  border-radius: 3px;
  font-family: "Lato", sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  background: #1565c0;
  color: #fff;
  white-space: nowrap;
}

/* ============================================================
   Publications
   ============================================================ */
.pub-list { margin-top: 0.4rem; }


.publication-item {
  display: flex;
  gap: 2rem;
  padding: 1.8rem 0;
  border-bottom: 1px solid #f0f0f0;
  align-items: flex-start;
}
.publication-item:last-child { border-bottom: none; }

/* Thumbnail */
.pub-thumb {
  flex: 0 0 148px;
  width: 148px;
  height: 108px;
  background: #f4f5f7;
  border: 1px solid #e4e4e4;
  border-radius: 5px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #bbb;
}
.pub-thumb img { width: 100%; height: 100%; object-fit: contain; display: block; background: #fff; }
/* Placeholder icon when no image */
.pub-thumb.no-img::before {
  content: '';
  display: block;
  width: 36px; height: 36px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23c8c8c8'%3E%3Cpath d='M14 2H6c-1.1 0-2 .9-2 2v16c0 1.1.9 2 2 2h12c1.1 0 2-.9 2-2V8l-6-6zm2 16H8v-2h8v2zm0-4H8v-2h8v2zm-3-5V3.5L18.5 9H13z'/%3E%3C/svg%3E") center/contain no-repeat;
}

/* Content */
.pub-body { flex: 1; min-width: 0; }

.pub-title {
  font-family: "Lato", sans-serif;
  font-size: 1.65rem;
  font-weight: 700;
  line-height: 2.2rem;
  margin: 0 0 0.5rem;
  color: #111;
}
.pub-title a { color: #111; }
.pub-title a:hover { color: #1565c0; }

.pub-authors {
  margin: 0 0 0.5rem;
  font-size: 0.88em;
  color: #555;
  line-height: 1.6;
}

.pub-venue-line {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  margin: 0 0.8rem 0.6rem 0;
  flex-wrap: wrap;
  vertical-align: middle;
}

.pub-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0 0 0.6rem;
}
.meta-sep {
  width: 1px;
  height: 1.1em;
  background: #d0d0d0;
  margin: 0 2px;
  flex-shrink: 0;
}
.venue-tag {
  font-family: "Lato", sans-serif;
  font-size: 1.35rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #1565c0;
  white-space: nowrap;
}

.award-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: "Lato", sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 3px;
  background: #fff8e1;
  color: #b45309;
  border: 1px solid #fcd34d;
  white-space: nowrap;
  margin-top: 6px;
}

.buttons { display: inline-flex; flex-wrap: wrap; gap: 4px; vertical-align: middle; }

.btn {
  display: inline-block;
  font-family: "Lato", sans-serif;
  font-size: 1.2rem;
  font-weight: 400;
  padding: 3px 9px;
  border-radius: 3px;
  border: 1px solid #1565c0;
  color: #1565c0;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
  line-height: 1.5;
}
.btn:hover { background: #1565c0; color: #fff; }

/* FancyBox citation */
.citation-box { background: #fff; padding: 2rem; max-width: 580px; }
.citation-box h3 { margin-top: 0; font-size: 1.7rem; }
.bibtex-code {
  background: #f5f5f5;
  padding: 1.2rem;
  font-family: "Courier New", monospace;
  font-size: 1.15rem;
  overflow-x: auto;
  white-space: pre;
  border-radius: 3px;
  margin: 0;
}

@media (max-width: 560px) {
  .publication-item { flex-direction: column; }
  .pub-thumb { width: 100%; height: 130px; flex: none; }
}

/* ============================================================
   Services
   ============================================================ */
#services { padding: 3.6rem 0; border-top: 1px solid #ebebeb; }

.services-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.4rem;
  margin-top: 0.4rem;
}
@media (max-width: 560px) { .services-grid { grid-template-columns: 1fr; } }

.services-col h3 {
  font-family: "Lato", sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: #555;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin: 0 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid #ebebeb;
}
.services-col p {
  font-family: "Lato", sans-serif;
  font-size: 1.35rem;
  color: #444;
  margin: 0.5rem 0;
  line-height: 1.7;
}
.services-col p strong {
  color: #212121;
  font-weight: 700;
}

/* Affiliation logos */
.affil-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2.4rem;
  padding: 2.4rem 0 1.6rem;
  border-top: 1px solid #ebebeb;
  margin-top: 2rem;
}
.affil-logo {
  height: 48px;
  opacity: 0.8;
  filter: grayscale(20%);
  transition: opacity 0.2s;
}
.affil-logo:hover { opacity: 1; }

/* ============================================================
   Footer
   ============================================================ */
.footer {
  text-align: center;
  color: #aaa;
  font-family: "Lato", sans-serif;
  font-size: 1.2rem;
  padding: 1.6rem 0 2.8rem;
  border-top: 1px solid #ebebeb;
}
.footer a { color: #aaa; }
.footer a:hover { color: #1565c0; }
.footer .sep { margin: 0 0.6em; }