/* =============================================
   Academic Portfolio — Minimal Mistakes style
   ============================================= */

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: #333;
  background: #fff;
}

/* ---- Masthead / Top nav ---- */
.masthead {
  background: #fff;
  border-bottom: 1px solid #f2f3f3;
  position: sticky;
  top: 0;
  z-index: 200;
  animation: intro 0.3s both;
  animation-delay: 0.15s;
}
@keyframes intro {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}
.masthead__inner {
  max-width: 1060px;
  margin: 0 auto;
  padding: 1em 1.5em;
  font-family: -apple-system, "San Francisco", "Roboto", sans-serif;
  display: flex;
  align-items: center;
  justify-content: flex-start;
}
.masthead__title a {
  font-weight: 700;
  font-size: 1.2em;
  color: #333;
  text-decoration: none;
  margin-right: 2em;
  white-space: nowrap;
}
.masthead__title a:hover { color: #5c6266; }

.greedy-nav {
  display: flex;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  background: #fff;
}
.greedy-nav a {
  display: block;
  margin: 0 1rem;
  padding: 0.5rem 0;
  color: #7a8288;
  text-decoration: none;
  font-weight: 400;
  font-size: 1em;
  transition: color 0.15s;
}
.greedy-nav a:hover {
  color: #5c6266;
}
.greedy-nav a.active {
  color: #5c6266;
}

/* Mobile hamburger */
#menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.3em;
  cursor: pointer;
  color: #333;
  padding: 0.3em;
}

/* ---- Page layout ---- */
.page__wrapper {
  max-width: 1060px;
  margin: 0 auto;
  padding: 2.5em 1.5em 3em;
  display: flex;
  gap: 3.5em;
  align-items: flex-start;
}

/* ---- Sidebar ---- */
.sidebar {
  width: 220px;
  flex-shrink: 0;
  position: sticky;
  top: 76px;           /* below masthead */
  align-self: flex-start;
}

.author__avatar img {
  width: 200px;
  height: 200px;
  border-radius: 6px;
  object-fit: cover;
  display: block;
  margin-bottom: 1em;
}

.author__name {
  font-size: 1.15em;
  font-weight: 700;
  color: #333;
  margin: 0 0 0.1em;
}
.author__bio {
  font-size: 0.85em;
  color: #666;
  margin: 0 0 1em;
  line-height: 1.5;
}

.author__urls-wrapper {
  font-size: 0.85em;
}
.author__urls-wrapper h3 {
  font-size: 0.75em;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #aaa;
  font-weight: 700;
  margin: 0 0 0.5em;
  border: none;
  padding: 0;
}
.author__urls {
  list-style: none;
  margin: 0;
  padding: 0;
}
.author__urls li {
  margin-bottom: 0.45em;
}
.author__urls a {
  color: #494e52;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5em;
  transition: color 0.15s;
}
.author__urls a:hover { color: #007AFF; }
.author__urls i {
  width: 1.1em;
  text-align: center;
  color: #999;
  font-size: 0.95em;
}

/* ---- Main content ---- */
.main-content {
  flex: 1;
  min-width: 0;
}

/* Typography */
.main-content h1 {
  font-size: 1.9em;
  font-weight: 700;
  margin: 0 0 0.4em;
  line-height: 1.2;
  color: #222;
}
.main-content h2 {
  font-size: 1.2em;
  font-weight: 700;
  color: #222;
  border-bottom: 1px solid #000;
  padding-bottom: 0.35em;
  margin: 2em 0 0.8em;
}
.main-content h2:first-child { margin-top: 0; }
.main-content h3 {
  font-size: 1.05em;
  font-weight: 700;
  color: #333;
  margin: 1.6em 0 0.5em;
  border: none;
  padding: 0;
}
.main-content p {
  margin: 0 0 1em;
}
.main-content ul, .main-content ol {
  padding-left: 1.6em;
  margin: 0 0 1em;
}
.main-content li {
  margin-bottom: 0.4em;
}

/* Links */
a { color: #007AFF; text-decoration: none; }
a:hover { text-decoration: underline; }

/* CV button */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  padding: 0.45em 1em;
  background: #007AFF;
  color: #fff !important;
  border-radius: 4px;
  font-size: 0.9em;
  font-weight: 600;
  text-decoration: none !important;
  margin-top: 0.8em;
  transition: background 0.15s;
  border: none;
  cursor: pointer;
}
.btn:hover { background: #0071E3; }

/* ---- About box ---- */
.about-box {
  background: #f5f5f7;
  border-radius: 10px;
  padding: 1.2em 1.4em;
  margin-bottom: 1.5em;
}
.about-box p:last-child { margin-bottom: 0; }

/* ---- Selected Work ---- */
.selected-work-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.selected-work-item {
  display: flex;
  gap: 1.1em;
  padding: 1em 0;
  border-bottom: 1px solid #f0f0f0;
  align-items: flex-start;
}
.selected-work-item:first-child { padding-top: 0; }
.selected-work-item:last-child { border-bottom: none; }
.selected-work-img {
  flex-shrink: 0;
  width: 120px;
  height: 120px;
}
.selected-work-img img {
  width: 120px;
  height: 120px;
  object-fit: cover;
  object-position: left center;
  border-radius: 4px;
  display: block;
  background: #f0f0f0;
}
.selected-work-body {
  flex: 1;
  min-width: 0;
}
.selected-work-body .pub-title a { color: #222; }
.selected-work-body .pub-title a:hover { color: #007AFF; }
.selected-work-body .pub-venue em { color: #007AFF; }
.selected-work-body .pub-venue a { color: #777; }
.selected-work-body .pub-venue a:hover { color: #007AFF; }

/* ---- Position / Education list ---- */
.position-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.position-item {
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 0 1.2em;
  padding: 0.7em 0;
  border-bottom: 1px solid #f0f0f0;
  align-items: start;
}
.position-item:first-child { padding-top: 0; }
.position-item:last-child { border-bottom: none; }
.position-label {
  font-size: 0.72em;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: #007AFF;
  padding-top: 0;
  text-align: right;
}
.position-title {
  font-size: 0.93em;
  font-weight: 600;
  color: #222;
  line-height: 1.4;
}
.position-title-sub {
  font-size: 0.93em;
  font-weight: 400;
  color: #555;
  line-height: 1.4;
}
.position-detail {
  font-size: 0.84em;
  color: #666;
  margin-top: 0.15em;
  line-height: 1.4;
}

/* ---- Page hero image ---- */
.page-hero-img {
  float: right;
  width: 180px;
  height: 180px;
  object-fit: cover;
  object-position: center 20%;
  border-radius: 8px;
  margin: 0 0 1.5em 1.8em;
}

/* ---- Publication entries ---- */
.pub-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.pub-item {
  padding: 1em 0;
  border-bottom: 1px solid #f0f0f0;
}
.pub-item:first-child { padding-top: 0; }
.pub-item:last-child { border-bottom: none; }
.pub-title {
  font-size: 1em;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 0.25em;
}
.pub-title a { color: #333; }
.pub-title a:hover { color: #007AFF; text-decoration: underline; }
.pub-authors {
  font-size: 0.88em;
  color: #555;
  margin-bottom: 0.15em;
}
.pub-venue {
  font-size: 0.88em;
  color: #777;
  font-style: italic;
}

/* ---- Teaching list ---- */
.teaching-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.teaching-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 0 1.2em;
  padding: 0.55em 0;
  border-bottom: 1px solid #f0f0f0;
  align-items: start;
}
.teaching-item:first-child { padding-top: 0; }
.teaching-item:last-child { border-bottom: none; }
.teaching-year {
  font-size: 0.88em;
  font-style: italic;
  color: #666;
  text-align: right;
  line-height: 1.5;
}
.teaching-body {
  font-size: 0.88em;
  color: #333;
  line-height: 1.5;
}
.teaching-name {
  font-weight: 600;
}
.teaching-meta {
  font-size: 0.95em;
  color: #777;
  margin-top: 0.1em;
}

/* ---- Service sections ---- */
.service-section { margin-bottom: 0.5em; }

/* ---- Footer ---- */
.site-footer {
  border-top: 1px solid #e8e8e8;
  text-align: center;
  padding: 1.5em;
  color: #888;
  font-size: 0.82em;
  margin-top: 2em;
}

/* ---- Mobile nav overlay ---- */
.mobile-nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 190;
}
#mobile-nav-menu {
  display: none;
  position: fixed;
  top: 56px;
  right: 0;
  width: 220px;
  background: #fff;
  border-left: 1px solid #e8e8e8;
  box-shadow: -2px 4px 12px rgba(0,0,0,.1);
  z-index: 195;
  padding: 1em 0;
}
#mobile-nav-menu.open { display: block; }
#mobile-nav-menu a {
  display: block;
  padding: 0.65em 1.5em;
  color: #7a8288;
  font-weight: 400;
  font-size: 1em;
  text-decoration: none;
}
#mobile-nav-menu a:hover,
#mobile-nav-menu a.active { color: #5c6266; font-weight: 600; background: #f7f9fb; }

/* ---- Responsive ---- */
@media (max-width: 860px) {
  .page__wrapper { gap: 2.5em; }
  .sidebar { width: 180px; }
  .author__avatar img { width: 160px; height: 160px; border-radius: 5px; }
}

@media (max-width: 680px) {
  .masthead__inner { justify-content: space-between; }
  #menu-toggle { display: block; margin-left: auto; }

  .page__wrapper {
    flex-direction: column;
    padding-top: 1.5em;
  }
  .sidebar {
    width: 100%;
    position: static;
    display: flex;
    flex-direction: column;
    gap: 1em;
    align-items: flex-start;
  }
  .author__avatar { width: 100%; }
  .author__avatar img {
    width: 100%;
    height: auto;
    border-radius: 6px;
  }
  .sidebar__text {
    width: 100%;
    display: flex;
    gap: 1.5em;
    align-items: flex-start;
  }
  .author__info { flex: 1; }
  .author__urls-wrapper { flex-shrink: 0; }
  .greedy-nav { display: none; }
}