:root {
  --bg: #ffffff;
  --surface: #f7f7f9;
  --surface-alt: #eef2ff;
  --text: #1c1e24;
  --muted: rgba(28, 30, 36, 0.65);
  --border: rgba(15, 23, 42, 0.12);
  --accent: #1565c0;
  --accent-soft: rgba(21, 101, 192, 0.12);
  --shadow: 0 15px 35px rgba(15, 23, 42, 0.08);
}

:root[data-theme="dark"], body[data-theme="dark"] {
  --bg: #0f1119;
  --surface: #151927;
  --surface-alt: #1d2236;
  --text: #f8fbff;
  --muted: rgba(248, 251, 255, 0.72);
  --border: rgba(255, 255, 255, 0.15);
  --accent: #7aa2ff;
  --accent-soft: rgba(122, 162, 255, 0.18);
  --shadow: 0 20px 40px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Inter', 'Roboto', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.65;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Inter', 'Montserrat', sans-serif;
  letter-spacing: 0.005em;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Space Grotesk', 'Montserrat', sans-serif;
  letter-spacing: 0.01em;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  text-decoration: underline;
}

.page-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.page-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.navbar {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.8rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.navbar-brand {
  font-family: 'Inter', 'Montserrat', sans-serif;
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--text);
}

.navbar-links {
  display: flex;
  gap: 1rem;
  margin-left: auto;
}

.navbar-links a {
  font-weight: 500;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  color: var(--muted);
}

.navbar-links a:hover,
.navbar-links a:focus-visible {
  background: var(--accent-soft);
  color: var(--accent);
}

/* Active nav item when its section is in view */
.navbar-links a.active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

.navbar-links.is-open {
  display: flex;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.icon-btn {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 50%;
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.icon-btn i:last-child {
  margin-left: 2px;
  opacity: 0.5;
}

.navbar-toggle {
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 1.25rem;
  display: none;
}

.page-body {
  flex: 1;
}

.home-section {
  padding: 80px 1.5rem;
}

.about-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(280px, 320px) minmax(0, 1fr);
  gap: 2rem;
}

.profile-card {
  padding: 2rem 1.5rem;
  text-align: center;
}

.avatar-wrap {
  position: relative;
  width: 220px;
  height: 220px;
  margin: 0 auto 1.5rem;
  overflow: hidden;
  border-radius: 50%;
}

.avatar {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: right 80%; /* adjust vertical position */
  transform: scale(1.2);       /* zoom to make yourself bigger */
}


.avatar-badge {
  position: absolute;
  bottom: 30px;          /* move slightly inward */
  right: 30px;           /* move slightly inward */
  background: var(--surface-alt);
  border-radius: 50%;
  padding: 0.25rem;     /* make badge a bit smaller so it fits */
  font-size: 1rem;
  /* optional: make it pop a bit */
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.18);
}

.profile-card h1 {
  font-family: 'Montserrat', sans-serif;
  margin: 0.4rem 0;
}

.role {
  color: var(--muted);
  margin-bottom: 1rem;
}

.meta-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  text-align: left;
}

.meta-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
  color: var(--muted);
}

.network-icon {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  font-size: 2rem;
}

.network-icon li {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 0;
}

.network-icon a {
  color: var(--text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.network-icon a:hover {
  color: var(--accent);
  transform: translateY(-2px);
}

/* Ensure Academicons loads and displays properly */
.network-icon i.ai,
.network-icon i.ai::before {
  font-family: "Academicons" !important;
  font-style: normal;
  font-weight: normal;
  font-variant: normal;
  text-transform: none;
  line-height: 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.network-icon i {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.quick-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
  margin: 0;
}

.quick-stats dt {
  margin: 0;
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text);
}

.quick-stats dd {
  margin: 0;
  font-size: 0.8rem;
  color: var(--muted);
}

.bio-panel {
  padding: 2.5rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 0.4rem;
}

.info-cards {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.info-cards section {
  padding: 0;
}

.pill-list {
  list-style: disc;
  padding-left: 1.5rem;
  margin: 0;
  display: block;
}

.pill-list li {
  padding: 0.2rem 0;
  border: none;
  background: transparent;
  font-size: 0.95rem;
}

.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
}

.timeline li {
  margin-bottom: 1rem;
}

.timeline span {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
}

.icon-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.icon-list li {
  display: flex;
  gap: 0.6rem;
  margin-bottom: 0.8rem;
  color: var(--muted);
}

.publications .section-heading,
.contact-section .section-heading {
  max-width: 800px;
  margin: 0 auto 2rem;
  text-align: center;
}

.filter-bar {
  max-width: 800px;
  margin: 0 auto 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: center;
}

.search-field {
  display: flex;
  flex-direction: row;    /* make span + input in a row */
  align-items: center;    /* vertically center them */
  background: #f8f8f8;
  border-radius: 999px;
  padding: 0.4rem 0.8rem;
  border: 1px solid #ddd;
}

.search-field span {
  margin-right: 0.5rem;
}

.search-field input {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.65rem 1.2rem;
  min-width: 260px;
  background: var(--surface);
  color: var(--text);
}

.see-all {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  text-transform: uppercase;
}

.publication-list-simple {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.publication-entry {
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.publication-entry:last-of-type {
  border-bottom: none;
  padding-bottom: 0;
}

.publication-entry h3 {
  margin-bottom: 0.2rem;
}

.publication-entry .pub-meta {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.publication-entry .pub-authors {
  font-size: 0.9rem;
  color: var(--muted);
}

.publication-entry.is-hidden {
  display: none;
}

/* New: publication actions (Cite button row) */
.pub-actions {
  margin-top: 0.65rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
}

.pub-actions .pub-link {
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
}

.pub-actions .pub-link:hover,
.pub-actions .pub-link:focus-visible {
  background: var(--accent-soft);
  color: var(--accent);
}

.contact-list {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
  font-size: 1rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 1.5rem 3rem;
  text-align: center;
  color: var(--muted);
}

#search-modal {
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1.5rem;
  max-width: 520px;
  width: 90%;
  background: var(--bg);
  color: var(--text);
  box-shadow: var(--shadow);
}

#search-modal::backdrop {
  background: rgba(5, 8, 20, 0.6);
}

#search-modal header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

#search-modal input {
  width: 100%;
  border-radius: 999px;
  border: 1px solid var(--border);
  padding: 0.7rem 1rem;
  background: var(--surface);
  color: var(--text);
}

.search-hint {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 0.5rem;
}

/* New: Cite button + modal styles */
.cite-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  border: none;
  background: var(--accent);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.cite-btn i {
  font-size: 0.8rem;
}

.cite-btn:hover,
.cite-btn:focus-visible {
  background: color-mix(in srgb, var(--accent) 85%, #000 15%);
  outline: none;
}

.cite-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(5, 8, 20, 0.55);
}

.cite-modal.is-open {
  display: flex;
}

.cite-modal__dialog {
  background: var(--bg);
  color: var(--text);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 1.5rem 1.75rem;
  max-width: 520px;
  width: 92%;
  position: relative;
}

.cite-modal__dialog h3 {
  margin-top: 0;
  margin-bottom: 0.75rem;
}

.cite-modal__close {
  position: absolute;
  right: 0.9rem;
  top: 0.8rem;
  border: none;
  background: transparent;
  font-size: 1.2rem;
  cursor: pointer;
  color: var(--muted);
}

.cite-modal__close:hover {
  color: var(--text);
}

#bibtex-text {
  width: 100%;
  min-height: 200px;
  border-radius: 10px;
  border: 1px solid var(--border);
  padding: 0.75rem 0.9rem;
  font-family: 'Roboto Mono', monospace;
  font-size: 0.85rem;
  background: var(--surface);
  color: var(--text);
  resize: vertical;
}

.cite-modal__actions {
  margin-top: 0.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.cite-modal__actions button {
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 0.85rem;
  cursor: pointer;
}

.cite-modal__actions button:hover,
.cite-modal__actions button:focus-visible {
  background: var(--accent-soft);
  color: var(--accent);
}

.cite-modal__hint {
  margin-top: 0.5rem;
  font-size: 0.78rem;
  color: var(--muted);
}

/* Optional: slightly smaller modal on mobile */
@media (max-width: 600px) {
  .cite-modal__dialog {
    padding: 1.25rem 1.25rem 1.5rem;
  }
}

@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
  }

  .profile-card {
    max-width: 420px;
    margin: 0 auto;
  }

  .bio-panel {
    padding: 1.75rem;
  }
}

@media (max-width: 720px) {
  .navbar {
    flex-wrap: wrap;
  }

  .navbar-links {
    width: 100%;
    order: 3;
    display: none;
    flex-direction: column;
    background: var(--bg);
    padding: 1rem 0;
    border-top: 1px solid var(--border);
    transition: all 0.3s ease;
  }
  
  .navbar-links.is-open {
    display: flex;
    animation: slideDown 0.3s ease;
  }
  
  @keyframes slideDown {
    from {
      opacity: 0;
      transform: translateY(-10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  .navbar-links a {
    padding: 0.75rem 1.5rem;
    border-radius: 0;
  }

  .navbar-toggle {
    display: block;
    margin-left: auto;
  }

  .nav-actions {
    order: 2;
  }

  .home-section {
    padding: 60px 1rem;
  }

  .info-cards {
    grid-template-columns: 1fr;
  }
}