/* ===== Custom Properties ===== */
:root {
  --nav-width: 220px;
  --content-max-width: 800px;
  --dot-size: 10px;
  --dot-mover-size: 14px;
  --color-accent: #2c3e50;
  --color-accent-light: #3498db;
  --color-dot-inactive: #d0d0d0;
  --color-track: #e8e8e8;
  --color-text-muted: #6c757d;
  --color-border: #eee;
  --section-gap: 5rem;
}

/* ===== Quarto Overrides ===== */
#quarto-header,
#quarto-footer,
.quarto-title-block,
#title-block-header {
  display: none !important;
}

#quarto-content.page-layout-custom {
  padding: 0;
  margin: 0;
}

#quarto-content.page-layout-custom > * {
  /* Let our sections control their own layout */
}

body {
  margin: 0;
  overflow-x: hidden;
}

/* ===== Main Two-Column Layout ===== */
.main-layout {
  display: grid;
  grid-template-columns: var(--nav-width) 1fr;
  max-width: calc(var(--nav-width) + var(--content-max-width) + 6rem);
  margin: 0 auto;
  padding: 3rem 2rem;
  gap: 3rem;
}

/* ===== Side Navigation ===== */
.side-nav {
  position: sticky;
  top: 2rem;
  height: fit-content;
  align-self: start;
}

.sidebar-image {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  margin: 0 auto 0.8rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.sidebar-name {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-accent);
  text-align: center;
  margin: 0 0 0.2rem;
  letter-spacing: -0.02em;
}

.sidebar-subtitle {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  text-align: center;
  margin: 0 0 0.15rem;
  line-height: 1.4;
}

.sidebar-degrees {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  text-align: center;
  margin: 0 0 0.3rem;
  letter-spacing: 0.02em;
}

.nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
  position: relative;
}

.nav-list li {
  margin-bottom: 1.6rem;
}

.nav-list li:last-child {
  margin-bottom: 0;
}

.email-link {
  display: block;
  text-align: center;
  font-size: 0.7rem;
  color: var(--color-text-muted);
  margin: 0.2rem 0 0.6rem;
  letter-spacing: 0.01em;
}

.sidebar-socials {
  display: flex;
  gap: 0.8rem;
  justify-content: center;
  margin-bottom: 0.5rem;
}

.sidebar-socials a {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  transition: color 0.2s ease;
  text-decoration: none;
}

.sidebar-socials a:hover {
  color: var(--color-accent);
}

.sidebar-cv-link {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.book-meeting-btn {
  display: block;
  text-align: center;
  padding: 0.3rem 0.7rem;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: 5px;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease;
  margin-bottom: 1rem;
}

.book-meeting-btn:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
  text-decoration: none;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.25s ease;
  position: relative;
}

.nav-link:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.nav-link.active {
  color: var(--color-accent);
  font-weight: 600;
}

/* Static dots on nav items */
.nav-dot {
  display: inline-block;
  width: var(--dot-size);
  height: var(--dot-size);
  border-radius: 50%;
  border: 2px solid var(--color-dot-inactive);
  background: transparent;
  transition: border-color 0.3s ease, background-color 0.3s ease;
  flex-shrink: 0;
}

.nav-link.active .nav-dot {
  border-color: var(--color-accent);
  background-color: var(--color-accent);
}

/* Track wrapper - positioned alongside the dots */
.nav-track-wrapper {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--dot-size);
  pointer-events: none;
  /* JS will set the actual top/height based on dot positions */
}

.nav-track {
  position: absolute;
  left: calc(var(--dot-size) / 2 - 1px);
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-track);
  border-radius: 1px;
}

/* Moving dot indicator */
.nav-dot-mover {
  position: absolute;
  left: calc(var(--dot-size) / 2 - var(--dot-mover-size) / 2);
  top: 0;
  width: var(--dot-mover-size);
  height: var(--dot-mover-size);
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(44, 62, 80, 0.15);
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 2;
}

/* ===== Content Column ===== */
.content-column {
  min-width: 0;
}

.content-section {
  margin-bottom: var(--section-gap);
  scroll-margin-top: 2rem;
}

.content-section:last-child {
  margin-bottom: 8rem; /* Extra space at bottom for scroll tracking */
}

.content-section h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 1.2rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-border);
}

.content-section h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

/* ===== Section Headers (logo + role) ===== */
.section-header {
  display: flex !important;
  flex-direction: row !important;
  align-items: center;
  gap: 1.2rem;
  margin-bottom: 1rem;
}

/* Quarto may wrap img in <p> or <figure> — flatten them */
.section-header p,
.section-header figure {
  margin: 0;
  display: contents;
}

.section-header-img {
  max-width: 280px;
  height: auto;
  display: block;
  flex-shrink: 0;
}

.section-header-role {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-accent);
  white-space: nowrap;
  margin-left: auto;
}

/* ===== Paper Figures ===== */
.paper-figure {
  margin: 1.5rem 0;
}

.paper-figure img {
  width: 100%;
  height: auto;
  border-radius: 6px;
  border: 1px solid var(--color-border);
}

.paper-figure figcaption {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 0.5rem;
  line-height: 1.5;
}

/* ===== 10DS Photo Grid ===== */
.photo-grid-10ds {
  display: flex;
  gap: 0.6rem;
  margin-top: 1.5rem;
}

.photo-grid-10ds img {
  flex: 1 1 0;
  min-width: 0;
  max-height: 180px;
  object-fit: cover;
  border-radius: 6px;
}

.photo-grid-10ds img:only-child {
  max-height: none;
  object-fit: cover;
  object-position: center 85%;
  width: 100%;
  height: 200px;
}

.photo-grid-10ds p,
.photo-grid-10ds figure {
  margin: 0;
  display: contents;
}

@media (max-width: 768px) {
  .photo-grid-10ds {
    height: 100px;
  }
}

/* ===== Publication Items ===== */
.pub-item {
  margin-bottom: 1.8rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.pub-item:last-child {
  border-bottom: none;
}

.pub-item a strong {
  color: var(--color-accent);
  transition: color 0.2s ease;
}

.pub-item a:hover strong {
  color: var(--color-accent-light);
}

.pub-citation {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.award-badge {
  color: #e67e22;
  font-weight: 700;
  font-size: 0.9rem;
}

/* Collapsible sections */
details {
  margin-top: 0.5rem;
}

details summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  transition: color 0.2s ease;
}

details summary:hover {
  color: var(--color-accent);
}

details[open] summary {
  margin-bottom: 0.5rem;
}

details pre {
  background-color: #f6f8fa;
  padding: 1rem;
  border-radius: 6px;
  overflow-x: auto;
  font-size: 0.8rem;
  border: 1px solid var(--color-border);
}

/* ===== Teaching Items ===== */
.teaching-item {
  margin-bottom: 1.8rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.teaching-item:last-child {
  border-bottom: none;
}

.teaching-role {
  color: var(--color-accent-light);
  font-weight: 600;
  font-size: 0.9rem;
}

.teaching-item p {
  font-size: 0.92rem;
  color: #444;
  margin: 0.5rem 0;
}

.teaching-materials {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.teaching-materials a {
  color: var(--color-accent-light);
  text-decoration: none;
}

.teaching-materials a:hover {
  text-decoration: underline;
}

/* ===== News Section ===== */
#news ul {
  padding-left: 1.2rem;
}

#news li {
  margin-bottom: 0.5rem;
}

/* ===== Mobile Profile Header ===== */
.mobile-profile {
  display: none;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .mobile-profile {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--color-border);
  }

  .mobile-profile-image {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    margin-bottom: 1rem;
  }

  .mobile-profile-name {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--color-accent);
    margin: 0 0 0.4rem;
  }

  .mobile-profile-subtitle {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin: 0 0 0.3rem;
  }

  .mobile-profile-degrees {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin: 0 0 0.8rem;
  }

  .mobile-profile-socials {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
  }

  .mobile-profile-socials a {
    color: var(--color-accent);
    transition: color 0.2s;
  }

  .mobile-profile-socials a:hover {
    color: var(--color-accent-light);
  }

  .mobile-profile-email {
    display: block;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: 0.3rem;
    width: 100%;
  }

  .mobile-profile .book-meeting-btn {
    display: inline-flex;
  }
  .main-layout {
    display: block;
    padding: 1.5rem 1rem 5rem;
  }

  .side-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    top: auto;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-top: 1px solid var(--color-border);
    z-index: 100;
    padding: 0.6rem 1rem;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
  }

  .nav-track-wrapper,
  .nav-dot-mover {
    display: none !important;
  }

  .sidebar-image,
  .sidebar-name,
  .sidebar-subtitle,
  .sidebar-degrees,
  .sidebar-socials,
  .email-link,
  .book-meeting-btn {
    display: none;
  }

  .nav-list {
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    align-items: center;
  }

  .nav-list li {
    margin-bottom: 0;
  }

  .nav-dot {
    display: none;
  }

  .nav-link {
    font-size: 0.75rem;
    gap: 0;
    padding: 0.3rem 0.5rem;
    border-radius: 4px;
  }

  .nav-link.active {
    background: rgba(44, 62, 80, 0.08);
  }

  .content-section:last-child {
    margin-bottom: 2rem;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  :root {
    --nav-width: 170px;
  }

  .main-layout {
    gap: 2rem;
    padding: 2rem 1.5rem;
  }
}