/* === CSS Variables (Light/Dark Theme) === */
:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --text-primary: #333333;
  --text-secondary: #555555;
  --text-muted: #777777;
  --border-color: #eeeeee;
  --heading-border: #333333;
  --link-color: #008AFF;
  --link-hover: #0085A1;
  --award-color: #c0392b;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --navbar-bg: #EAEAEA;
  --navbar-border: #DDDDDD;
  --navbar-text: #404040;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --text-primary: #e0e0e0;
    --text-secondary: #b8b8b8;
    --text-muted: #888888;
    --border-color: #2a2a4a;
    --heading-border: #e0e0e0;
    --link-color: #64b5f6;
    --link-hover: #90caf9;
    --award-color: #ef5350;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
    --navbar-bg: #0f3460;
    --navbar-border: #1a1a4a;
    --navbar-text: #e0e0e0;
  }
}

/* === Global Overrides for Dark Mode === */
@media (prefers-color-scheme: dark) {
  body {
    background-color: var(--bg-primary) !important;
    color: var(--text-primary) !important;
  }
}

/* === Hide navbar and footer === */
.navbar-custom {
  display: none !important;
}

footer {
  display: none !important;
}

/* === Smooth Scroll === */
html {
  scroll-behavior: smooth;
}

/* === Animations === */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    width: 0;
  }
  to {
    width: 100%;
  }
}

/* === Page Layout === */
.academic-page {
  padding-top: 3rem;
  padding-bottom: 3rem;
  background-color: var(--bg-primary);
  min-height: 100vh;
}

/* === Sidebar === */
.academic-sidebar {
  text-align: center;
  padding-right: 2rem;
  animation: fadeInUp 0.6s ease-out;
}

.academic-photo {
  width: 100%;
  max-width: 200px;
  border-radius: 8px;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.academic-photo:hover {
  transform: scale(1.02);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.12);
}

.academic-name {
  font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
  margin-top: 0;
  color: var(--text-primary);
}

.academic-position {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 0.15rem;
  margin-top: 0;
}

.academic-affiliation {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  margin-top: 0;
}

.academic-contact {
  margin-top: 0.5rem;
}

.academic-contact a {
  display: inline-block;
  margin: 0 0.5rem;
  color: var(--text-secondary);
  font-size: 1.3rem;
  transition: color 0.25s ease, transform 0.25s ease;
}

.academic-contact a:hover {
  color: var(--link-color);
  transform: scale(1.2);
  text-decoration: none;
}

/* === Content Area === */
.academic-content {
  animation: fadeInUp 0.6s ease-out 0.15s both;
}

.academic-content h2 {
  font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  padding-bottom: 0.4rem;
  margin-top: 2rem;
  margin-bottom: 0.8rem;
  position: relative;
  border-bottom: none;
}

.academic-content h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  height: 2px;
  background-color: var(--heading-border);
  animation: slideInLeft 0.5s ease-out forwards;
}

.academic-content h2:first-child {
  margin-top: 0;
}

.academic-content h3 {
  font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 1.2rem;
  margin-bottom: 0.5rem;
}

.academic-content p {
  font-size: 0.95rem;
  line-height: 1.65;
  margin: 0.6rem 0;
  color: var(--text-primary);
}

.academic-content ul {
  padding-left: 1.2rem;
  margin: 0.5rem 0;
}

.academic-content li {
  font-size: 0.93rem;
  line-height: 1.55;
  margin-bottom: 0.3rem;
  color: var(--text-primary);
}

.academic-content a {
  color: var(--link-color);
  transition: color 0.2s ease;
}

.academic-content a:hover {
  color: var(--link-hover);
}

/* === News List === */
.news-list {
  list-style: none;
  padding-left: 0;
  margin: 0;
}

.news-list li {
  margin-bottom: 0.5rem;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--text-primary);
  padding: 0.4rem 0.6rem;
  border-radius: 4px;
  transition: background-color 0.2s ease;
}

.news-list li:hover {
  background-color: var(--bg-secondary);
}

.news-date {
  font-weight: 600;
  color: var(--text-secondary);
  display: inline-block;
  min-width: 78px;
}

/* === Publication Items === */
.pub-item {
  margin-bottom: 0.8rem;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--text-primary);
  padding: 0.6rem 0.8rem;
  border-radius: 6px;
  border-left: 3px solid transparent;
  transition: background-color 0.25s ease, border-color 0.25s ease, transform 0.2s ease;
}

.pub-item:hover {
  background-color: var(--bg-secondary);
  border-left-color: var(--link-color);
  transform: translateX(4px);
}

.pub-venue {
  font-style: italic;
  color: var(--text-secondary);
}

.pub-award {
  color: var(--award-color);
  font-weight: 600;
}

.pub-links {
  display: inline;
  font-size: 0.85rem;
  margin-left: 0.3rem;
}

.pub-links a {
  color: var(--link-color);
  margin: 0 0.15rem;
  transition: color 0.2s ease;
}

.pub-links a:hover {
  color: var(--link-hover);
}

/* === Education Items === */
.edu-item {
  margin-bottom: 0.6rem;
  font-size: 0.93rem;
  color: var(--text-primary);
}

.edu-item strong {
  display: block;
  color: var(--text-primary);
}

.edu-time {
  color: var(--text-muted);
  font-size: 0.87rem;
}

/* === Responsive: Mobile === */
@media (max-width: 767px) {
  .academic-page {
    padding-top: 2rem;
  }

  .academic-sidebar {
    padding-right: 15px;
    padding-bottom: 1.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
  }

  .academic-photo {
    max-width: 150px;
  }

  .academic-content h2 {
    font-size: 1.2rem;
  }

  .pub-item {
    padding: 0.4rem 0.5rem;
  }
}

/* === Responsive: Tablet === */
@media (min-width: 768px) and (max-width: 1023px) {
  .academic-sidebar {
    padding-right: 1.5rem;
  }

  .academic-photo {
    max-width: 170px;
  }
}

/* === Responsive: Desktop === */
@media (min-width: 768px) {
  .academic-sidebar {
    position: sticky;
    top: 3rem;
    align-self: flex-start;
  }
}