/*
 * LaTeX-style Academic Website CSS
 * Based on LaTeX.css with Computer Modern Unicode font
 */

/* Import LaTeX.css from CDN */
@import url('https://cdn.jsdelivr.net/npm/latex.css@1.10.0/style.min.css');

/* CMU Serif Font Faces - Self-hosted WOFF2 */
@font-face {
  font-family: 'CMU Serif';
  src: url('../assets/fonts/cmu-serif-roman.woff2') format('woff2');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'CMU Serif';
  src: url('../assets/fonts/cmu-serif-italic.woff2') format('woff2');
  font-weight: normal;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: 'CMU Serif';
  src: url('../assets/fonts/cmu-serif-bold.woff2') format('woff2');
  font-weight: bold;
  font-style: normal;
  font-display: swap;
}

/* Root variables */
:root {
  --body-bg: #fefdfb;
  --body-color: #1a1a1a;
  --link-color: #555;
  --header-border: #333;
  --nav-link-color: #1a1a1a;
  --content-width: 700px;
}

/* Override LaTeX.css red links */
a,
a:visited,
a:link,
body a,
main a {
  color: var(--link-color) !important;
}

a:hover,
a:active,
body a:hover,
main a:hover {
  color: #333 !important;
}

/* Base styles */
html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: 'CMU Serif', 'Latin Modern Roman', 'Computer Modern', Georgia, serif;
  background-color: var(--body-bg);
  color: var(--body-color);
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 2rem 1.5rem;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

/* Site Header - LaTeX title-page inspired */
.site-header {
  text-align: center;
  padding: 1rem 1rem 0.75rem;
  margin-bottom: 1.5rem;
  border: 1px solid var(--header-border);
  background-color: var(--body-bg);
}

.site-title {
  font-size: 2rem;
  font-weight: normal;
  margin: 0 0 0.25rem 0;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.site-subtitle {
  font-size: 1.1rem;
  font-weight: normal;
  margin: 0;
  color: #444;
  font-style: italic;
  text-align: center;
}

/* Navigation */
.site-nav {
  text-align: center;
  padding: 0.5rem 0;
  border-top: 1px solid var(--header-border);
  margin-top: 0.75rem;
}

.site-nav a {
  color: var(--nav-link-color);
  text-decoration: none;
  margin: 0 1rem;
  padding: 0.25rem 0;
  font-size: 1rem;
  transition: border-bottom 0.2s ease;
}

.site-nav a:hover {
  border-bottom: 1px solid var(--nav-link-color);
}

.site-nav a.active {
  font-weight: bold;
  border-bottom: 2px solid var(--nav-link-color);
}

.nav-separator {
  color: #999;
  margin: 0 0.25rem;
}

/* Main content */
main {
  margin-top: 2rem;
}

/* Home page 2-column grid layout */
.home-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  grid-template-rows: auto auto;
  gap: 1.5rem 2rem;
  align-items: start;
}

.grid-photo {
  grid-column: 1;
  grid-row: 1;
}

.grid-bio {
  grid-column: 2;
  grid-row: 1 / 3;
}

.grid-sidebar {
  grid-column: 1;
  grid-row: 2;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.sidebar-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.profile-photo {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  margin: 0 auto;
}

.grid-bio p {
  text-align: justify;
  hyphens: auto;
}

.social-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border: 1px solid #333;
  border-radius: 3px;
  text-decoration: none;
  color: var(--body-color) !important;
  text-align: center;
  transition: background-color 0.2s ease;
  white-space: nowrap;
}

.social-btn:hover {
  background-color: #f0f0f0;
}

.social-icon {
  width: 1.1rem;
  height: 1.1rem;
  flex-shrink: 0;
  color: var(--body-color);
}

.social-icon-img {
  width: 1.3rem;
  height: 1.3rem;
  flex-shrink: 0;
  object-fit: contain;
}

/* Contact info */
.contact-info {
  padding: 0;
}

.contact-info h3 {
  margin: 0 0 0.75rem 0;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: normal;
}

.contact-list {
  margin: 0 !important;
  padding: 0 !important;
  font-size: 0.9rem !important;
  line-height: 1.5 !important;
}

.contact-list dt {
  font-weight: bold !important;
  font-size: 0.85rem !important;
  color: #555 !important;
  margin: 0.75rem 0 0 0 !important;
  padding: 0 !important;
  text-indent: 0 !important;
}

.contact-list dt:first-child {
  margin-top: 0 !important;
}

.contact-list dd {
  margin: 0.25rem 0 0 0 !important;
  padding: 0 !important;
  text-indent: 0 !important;
}

.contact-list dd a {
  margin: 0 !important;
  padding: 0 !important;
  text-indent: 0 !important;
  display: inline !important;
}


/* CV sections */
.cv-section {
  margin-bottom: 2.5rem;
}

.cv-section h2 {
  font-size: 1.4rem;
  border-bottom: 1px solid #333;
  padding-bottom: 0.5rem;
  margin-bottom: 1rem;
}

.cv-entry {
  margin-bottom: 1.25rem;
  padding-left: 0;
}

.cv-entry .date {
  font-size: 0.95rem;
  color: #555;
  margin-bottom: 0.15rem;
}

.cv-entry .title {
  font-weight: bold;
  margin-bottom: 0.1rem;
}

.cv-entry .institution {
  font-style: italic;
  color: #333;
}

/* Publications */
.publications-section {
  margin-bottom: 2.5rem;
}

.publications-section h2 {
  font-size: 1.4rem;
  border-bottom: 1px solid #333;
  padding-bottom: 0.5rem;
  margin-bottom: 1rem;
}

.publication {
  margin-bottom: 1.25rem;
  text-align: justify;
  hyphens: auto;
}

.publication .authors {
  font-weight: normal;
}

.publication .authors strong {
  font-weight: bold;
}

.publication .paper-title {
  font-style: italic;
}

.publication .venue {
  font-weight: normal;
}

.publication .year {
  font-weight: normal;
}

/* Expand hint legend */
main .expand-hint,
.expand-hint {
  font-size: 0.8rem !important;
  font-style: italic !important;
  color: #888 !important;
  margin-bottom: 1.5rem !important;
  background: none !important;
  background-color: transparent !important;
}

/* Expandable publications - Harvard style */
.publication .citation {
  margin: 0 !important;
}

.expand-btn {
  /* Reset all properties */
  all: unset !important;

  /* Explicit WebKit resets - critical for Safari/DuckDuckGo */
  -webkit-appearance: none !important;
  -moz-appearance: none !important;
  appearance: none !important;

  /* Explicit background removal */
  background: none !important;
  background-color: transparent !important;

  /* Explicit border removal */
  border: none !important;

  /* Remove mobile tap highlight */
  -webkit-tap-highlight-color: transparent !important;

  /* Layout properties */
  display: block !important;
  width: 100% !important;
  cursor: pointer !important;

  /* Typography - inherit from parent */
  font-family: inherit !important;
  font-size: inherit !important;
  line-height: inherit !important;
  color: inherit !important;

  /* Text alignment */
  text-align: justify !important;
  hyphens: auto !important;
  -webkit-hyphens: auto !important;

  /* Remove any box-shadow */
  box-shadow: none !important;
}

.expand-btn:hover,
.expand-btn:active,
.expand-btn:focus-visible {
  background: none !important;
  background-color: transparent !important;
}

.expand-btn:focus {
  outline: 2px solid #333 !important;
  outline-offset: 2px !important;
}

.expand-icon {
  display: inline-block !important;
  font-size: 0.7em !important;
  margin-left: 0.5em !important;
  transition: transform 0.2s ease !important;
  vertical-align: middle !important;
}

.expand-btn[aria-expanded="true"] .expand-icon {
  transform: rotate(0deg) !important;
}

.abstract {
  margin: 0.75rem 0 0 1.5rem !important;
  padding: 0 !important;
  border-left: 2px solid #ddd !important;
  padding-left: 1rem !important;
}

.abstract p {
  margin: 0 0 0.75rem 0 !important;
  text-align: justify !important;
  hyphens: auto !important;
  font-size: 0.95rem !important;
  color: #333 !important;
}

.full-article-link {
  display: inline-block !important;
  font-size: 0.95rem !important;
  color: var(--link-color) !important;
  text-decoration: none !important;
}

.full-article-link:hover {
  text-decoration: underline !important;
}

/* Policy brief title link */
.paper-title-link {
  font-style: italic !important;
  color: var(--link-color) !important;
  text-decoration: none !important;
}

.paper-title-link:hover {
  text-decoration: underline !important;
}

/* Footer */
.site-footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid #ddd;
  text-align: center !important;
  font-size: 0.9rem;
  color: #666;
}

.site-footer p {
  text-align: center !important;
  margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
  html {
    font-size: 16px;  /* Keep same as desktop - don't shrink on mobile */
  }

  body {
    padding: 1rem;
  }

  .site-header {
    padding: 1rem 0.75rem;
  }

  .site-title {
    font-size: 1.6rem;
  }

  .site-subtitle {
    font-size: 1rem;
  }

  .site-nav a {
    margin: 0 0.5rem;
    font-size: 0.95rem;
  }

  .home-grid {
    display: flex !important;
    flex-direction: column !important;
    gap: 1.5rem !important;
  }

  .grid-photo {
    grid-column: auto !important;
    grid-row: auto !important;
    order: 1 !important;
    width: 100% !important;
    text-align: center !important;
    display: flex !important;
    justify-content: center !important;
  }

  .grid-photo .profile-photo {
    margin: 0 auto !important;
  }

  .grid-bio {
    grid-column: auto !important;
    grid-row: auto !important;
    order: 2 !important;
  }

  .grid-sidebar {
    grid-column: auto !important;
    grid-row: auto !important;
    order: 3 !important;
    width: 100% !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    gap: 1.5rem !important;
  }

  .grid-bio p {
    text-align: justify !important;
    hyphens: auto !important;
    -webkit-hyphens: auto !important;
  }

  .sidebar-links {
    width: 100% !important;
    max-width: 300px !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 0.75rem !important;
  }

  .contact-info {
    width: fit-content !important;
    text-align: left !important;
  }

  .social-btn {
    display: flex !important;
    width: 100% !important;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 16px;  /* Keep readable on small screens */
  }

  .site-title {
    font-size: 1.4rem;
    letter-spacing: 0.02em;
  }

  .site-subtitle {
    font-size: 0.95rem;
  }

  .site-nav {
    padding: 0.5rem 0;
  }

  .site-nav a {
    margin: 0 0.35rem;
    font-size: 0.9rem;
  }

  .cv-entry .date {
    font-size: 0.9rem;
  }
}

/* Print styles */
@media print {
  body {
    background-color: white;
    max-width: none;
    padding: 0;
  }

  .site-header {
    border: none;
  }

  .site-nav {
    display: none;
  }

  .external-links a {
    border: none;
    padding: 0;
  }

  .external-links a::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
  }
}