/* ==========================================================================
   Design Tokens
   ========================================================================== */
:root {
  --accent: #0f5b67;
  --accent-hover: #0a4651;
  --accent-soft: #eaf3f4;
  --accent-strong: #073640;
  --urgent: #a61e2c;
  --urgent-soft: #fdf2f3;
  --text: #1a1f2e;
  --text-muted: #4a5363;
  --text-subtle: #8a93a3;
  --border: #e3e6ea;
  --border-soft: #eef0f3;
  --surface: #ffffff;
  --surface-alt: #f7f8fa;
  --surface-muted: #fafbfc;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 3px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 14px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 14px 36px rgba(15, 23, 42, 0.09);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   Base
   ========================================================================== */
body,
.page,
.side-card {
  color: var(--text);
}

.page p,
.page li {
  color: var(--text);
}

::selection {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

*:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

h3 > a {
  text-decoration: none;
}

/* ==========================================================================
   Section headings (article > h3)
   ========================================================================== */
.page article > h3 {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
  margin: 2.6rem 0 1.1rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.page article > h3::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 2.4rem;
  height: 2px;
  background: var(--accent);
}

.page article > h3 a,
.page article > h3 a:hover {
  color: inherit;
  text-decoration: none;
}

/* ==========================================================================
   Hero / Bio Intro
   ========================================================================== */
.bio-intro {
  margin: 0 0 1.25rem;
  padding: 1.6rem 1.8rem;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-md);
}

.bio-name {
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--text);
  margin: 0 0 0.45rem;
}

.bio-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  color: var(--text-muted);
  margin: 0 0 1rem;
}

.bio-role {
  color: var(--accent);
  font-weight: 600;
}

.bio-sep {
  color: var(--text-subtle);
}

.bio-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.bio-link {
  border: 1px solid var(--border);
  color: var(--text);
  background: var(--surface);
  border-radius: 999px;
  padding: 0.3em 0.8em;
  transition: background var(--transition), border-color var(--transition),
    color var(--transition), transform var(--transition);
}

.bio-link:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
  transform: translateY(-1px);
}

/* job-highlight callout */
.page p.job-highlight {
  margin: 1.25rem 0 0;
  padding: 0.95rem 1.2rem 0.95rem 1.1rem;
  background: var(--urgent-soft);
  border-left: 3px solid var(--urgent);
  border-radius: var(--radius-md);
  color: var(--urgent);
  font-size: 1.5rem;
  line-height: 1.55;
}

.page p.job-highlight strong {
  color: var(--urgent);
  font-weight: 600;
}

.job-highlight .job-contact-icon {
  color: inherit;
  text-decoration: none;
  margin-left: 0.4em;
  transition: opacity var(--transition);
}

.job-highlight .job-contact-icon:hover {
  opacity: 0.7;
}

/* ==========================================================================
   Sidebar (.side-card)
   ========================================================================== */
.side-card .author-discrip {
  text-align: center;
}

.side-card .author-discrip h3 {
  font-size: 1.7rem;
  font-weight: 700;
  margin: 0.6rem 0 0.2rem;
  color: var(--text);
  letter-spacing: -0.005em;
}

.side-card .author-bio {
  color: var(--text-muted);
  font-size: 1.25rem;
  margin: 0 0 0.6rem;
  font-style: italic;
}

.author-avatar picture,
.publication-image picture {
  display: block;
}

.timeline-logo picture {
  display: contents;
}

/* CV link — plain accent link */
.side-card .cv-links {
  display: inline-flex !important;
  align-items: center;
  gap: 0.35rem;
  margin: 14px auto 0 !important;
  padding: 0;
  background: transparent !important;
  color: var(--accent) !important;
  font-weight: 600;
  font-size: 1.4rem;
  text-decoration: none !important;
  border: none !important;
  box-shadow: none !important;
  transition: color var(--transition);
}

.side-card .cv-links:hover {
  color: var(--accent-hover) !important;
  background: transparent !important;
}

.side-card .cv-links i {
  font-style: normal;
  color: var(--accent) !important;
  margin-right: 0;
}

.side-card .cv-links i span {
  font-style: normal;
  text-decoration: none !important;
  color: var(--accent) !important;
}

.side-card .cv-links:hover i,
.side-card .cv-links:hover i span {
  color: var(--accent-hover) !important;
}

/* Center the inline link under the avatar */
.side-card .card-wrap {
  text-align: center;
}

@media (max-width: 34em) {
  .side-card .card-wrap {
    padding-left: 0;
    display: flex;
    justify-content: center;
  }

  .side-card .author-discrip,
  .side-card .author-links,
  .side-card .cv-links {
    display: none !important;
  }

  .side-card .author-avatar {
    display: block;
    width: 96px;
    height: 96px;
  }

  .side-card .author-avatar img {
    width: 100% !important;
    height: 100% !important;
    object-fit: cover;
    aspect-ratio: 1 / 1;
  }

  .author-links .social-icons img.social-icon-img {
    width: 1.28571em;
    height: 1.28571em;
    display: inline-block;
    vertical-align: middle;
  }
}

@media (min-width: 34em) {
  .author-links .social-icons {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    justify-items: center;
    justify-content: center;
    gap: 6px 8px;
    width: min(140px, 100%);
    margin: 0 auto;
    padding: 0;
  }

  .author-links .social-icons li {
    display: block;
    margin: 0;
  }

  .author-links .social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    color: var(--text);
    border-radius: 8px;
    transition: background var(--transition), color var(--transition),
      transform var(--transition);
  }

  .author-links .social-icons a:hover {
    color: var(--accent);
    background: var(--accent-soft);
    transform: translateY(-2px);
  }

  .author-links .social-icons img.social-icon-img {
    width: 1.28571em;
    height: 1.28571em;
    display: block;
  }

  .author-links .social-icons a:hover img.social-icon-img {
    filter: brightness(0) saturate(100%) invert(28%) sepia(42%) saturate(1100%)
      hue-rotate(145deg) brightness(85%) contrast(95%);
  }
}

/* ==========================================================================
   Badges
   ========================================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.32em 0.75em;
  font-size: 75%;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.01em;
  white-space: nowrap;
  vertical-align: baseline;
  border-radius: 999px;
  margin-right: 0;
  text-decoration: none;
  background-color: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  transition: background var(--transition), border-color var(--transition),
    color var(--transition), transform var(--transition),
    box-shadow var(--transition);
}

.badge i {
  margin-right: 0.35em;
  font-size: 0.95em;
}

.badge:hover {
  transform: translateY(-1px);
}

.badge-paper {
  color: var(--text-muted);
  background: var(--surface);
}

.badge-paper:hover {
  border-color: var(--text-muted);
  background: var(--surface-alt);
  color: var(--text);
}

.badge-code {
  border-color: #d0d7de;
  color: #1f2328;
  background: #f6f8fa;
}

.badge-code:hover {
  background: #1f2328;
  color: #fff;
  border-color: #1f2328;
}

.badge-project {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

.badge-project:hover {
  background: var(--accent);
  color: #fff;
}

.badge-demo {
  border-color: #c89400;
  color: #7a5a00;
  background: #fff7df;
}

.badge-demo:hover {
  background: #b08200;
  color: #fff;
  border-color: #b08200;
}

.badge-conference {
  border-color: #4a8a93;
  background: #4a8a93;
  color: #fff;
  letter-spacing: 0.02em;
}

.badge-conference:hover {
  background: var(--accent);
  border-color: var(--accent);
}

/* ==========================================================================
   Publications
   ========================================================================== */
.publication-list {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

.publication-group {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

.publication-group + .publication-group {
  margin-top: 1.6rem;
}

.publication-group-heading {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 0.25rem 0 0.25rem 0.9rem;
  margin: 0 0 0.3rem;
  border-left: 3px solid var(--accent);
}

.publication-block {
  display: flex;
  gap: 20px;
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: 1.4rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-soft);
  transition: transform var(--transition), box-shadow var(--transition),
    border-color var(--transition);
  content-visibility: auto;
  contain-intrinsic-size: 360px 220px;
  position: relative;
}

.publication-block:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--border);
}

.publication-block.representative-work {
  background: linear-gradient(180deg, #fbfdfd 0%, #f5f9fa 100%);
  border: 1px solid #d8e2e4;
  box-shadow: 0 4px 16px rgba(15, 91, 103, 0.07);
  overflow: hidden;
}

.publication-block.representative-work::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--accent), var(--accent-hover));
}

.publication-block.representative-work:hover {
  box-shadow: 0 10px 28px rgba(15, 91, 103, 0.13);
}

.publication-title {
  font-size: 1.7rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  line-height: 1.4;
  color: var(--text);
  letter-spacing: -0.005em;
}

.publication-authors {
  font-size: 1.45rem;
  margin-bottom: 0.7rem;
  line-height: 1.55;
  color: var(--text-muted);
}

.publication-links {
  margin-top: 0.7rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.highlight-name {
  font-weight: 700;
  color: var(--accent);
}

.publication-image {
  flex-shrink: 0;
  width: 240px;
  height: 135px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--surface-alt);
  display: flex;
  align-items: center;
  justify-content: center;
}

.publication-image picture {
  width: 100%;
  height: 100%;
}

.publication-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.publication-block:hover .publication-image img {
  transform: scale(1.04);
}

.publication-content {
  flex: 1;
  min-width: 0;
}

.publication-title .citation-tag {
  display: inline-block !important;
  font-size: 0.6em !important;
  font-weight: 600 !important;
  color: var(--accent) !important;
  background: var(--accent-soft) !important;
  border: 1px solid rgba(15, 91, 103, 0.22) !important;
  padding: 0.1em 0.65em !important;
  border-radius: 999px !important;
  margin-left: 0.55em !important;
  vertical-align: middle !important;
  line-height: 1.6 !important;
  white-space: nowrap !important;
}

/* Full List link in the Selected Publications heading */
.full-list-link {
  display: inline-block;
  margin-left: 0.6em;
  vertical-align: middle;
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid rgba(15, 91, 103, 0.22);
  padding: 0.28em 0.85em;
  border-radius: 999px;
  text-decoration: none;
  transition: background var(--transition), color var(--transition),
    transform var(--transition);
}

.full-list-link i {
  margin-left: 0.4em;
  font-size: 0.9em;
  transition: transform var(--transition);
}

.full-list-link:hover {
  background: var(--accent);
  color: #fff;
}

.full-list-link:hover i {
  transform: translateX(3px);
}

@media (max-width: 768px) {
  .publication-block {
    flex-direction: column;
  }

  .publication-image {
    width: 100%;
    height: auto;
    padding-bottom: 56.25%;
    position: relative;
  }

  .publication-image img {
    position: absolute;
    top: 0;
    left: 0;
    object-fit: contain;
  }

  .publication-block.representative-work::after {
    top: 8px;
    right: 8px;
  }
}

/* ==========================================================================
   Timeline (Experience / Education)
   ========================================================================== */
.timeline {
  position: relative;
  max-width: 100%;
  margin: 1.4rem 0;
}

.timeline-item {
  position: relative;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: stretch;
  content-visibility: auto;
  contain-intrinsic-size: 96px 96px;
}

.timeline::before {
  content: "";
  position: absolute;
  width: 2px;
  background: var(--border);
  top: 0.5rem;
  bottom: 0.5rem;
  left: 2.5rem;
  z-index: 0;
}

.timeline-logo {
  width: 5rem;
  height: 5rem;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  z-index: 1;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition), box-shadow var(--transition),
    border-color var(--transition);
}

.timeline-item:hover .timeline-logo {
  border-color: var(--accent);
  box-shadow: 0 4px 14px rgba(15, 91, 103, 0.16);
  transform: scale(1.04);
}

.timeline-logo img {
  max-width: 80%;
  max-height: 80%;
  object-fit: contain;
}

.timeline-content {
  background-color: var(--surface);
  border-radius: var(--radius-md);
  padding: 1.1rem 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-soft);
  transition: transform var(--transition), box-shadow var(--transition),
    border-color var(--transition);
  position: relative;
  overflow: hidden;
  margin-left: 1.4rem;
  flex: 1;
}

.timeline-content:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--border);
}

.timeline-date {
  display: inline-block;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 0.22em 0.75em;
  border-radius: 999px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.55rem;
}

.timeline-title {
  font-size: 1.65rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: var(--text);
  line-height: 1.4;
  letter-spacing: -0.005em;
}

.timeline-description {
  font-size: 1.4rem !important;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
}

/* ==========================================================================
   Body paragraph link styling (animated underline)
   ========================================================================== */
.page p a:not(.badge):not(.job-contact-icon):not(.bio-link),
.page li a:not(.badge) {
  color: var(--accent);
  text-decoration: none;
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 0 1px;
  background-repeat: no-repeat;
  background-position: 0 100%;
  transition: background-size var(--transition);
}

.page p a:not(.badge):not(.job-contact-icon):not(.bio-link):hover,
.page li a:not(.badge):hover {
  background-size: 100% 1px;
}

/* Back-to-top accent */
.cd-top {
  color: var(--accent);
}

.cd-top:hover {
  color: var(--accent-hover);
}

/* ==========================================================================
   News slider (kept from original)
   ========================================================================== */
.news-container {
  position: relative;
}

.news-slider {
  max-height: 210px;
  overflow-y: auto;
  padding-right: 10px;
  scroll-behavior: smooth;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.news-slider::-webkit-scrollbar {
  width: 0;
  height: 0;
}

.news-slider:hover::-webkit-scrollbar {
  width: 6px;
}

.news-slider:hover::-webkit-scrollbar-track {
  background: transparent;
}

.news-slider:hover::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

.news-slider:hover::-webkit-scrollbar-thumb:hover {
  background: var(--text-subtle);
}

.scroll-indicator {
  text-align: center;
  padding: 5px 0;
  font-size: 0.85rem;
  color: var(--text-subtle);
  font-style: italic;
}