/* ============================================
   Site Controls: Language Switcher + Theme Toggle
   ============================================ */

.site-controls {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-left: auto;
  flex-shrink: 0;
  padding-right: 0.5rem;
}

.lang-switcher {
  display: flex;
  gap: 2px;
}

.lang-btn {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: inherit;
  padding: 2px 9px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.7rem;
  font-family: inherit;
  letter-spacing: 0.02em;
  transition: background 0.15s, border-color 0.15s;
  line-height: 1.6;
}

.lang-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.55);
}

.lang-btn.active {
  background: rgba(255, 255, 255, 0.22);
  border-color: rgba(255, 255, 255, 0.65);
  font-weight: 700;
}

.theme-toggle-btn {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 4px;
  padding: 2px 8px;
  cursor: pointer;
  font-size: 0.85rem;
  line-height: 1.5;
  transition: background 0.15s;
  color: inherit;
  font-family: inherit;
}

.theme-toggle-btn:hover {
  background: rgba(255, 255, 255, 0.15);
}

/* ============================================
   Light Mode Overrides (dark skin → light blue)
   ============================================ */

body.light-mode {
  background-color: #f0f5fb !important;
  color: #1a202c !important;
}

body.light-mode .masthead,
body.light-mode .masthead__inner-wrap,
body.light-mode .greedy-nav {
  background: #1e3a8a !important;
  border-bottom-color: #1e40af !important;
}

body.light-mode .greedy-nav a,
body.light-mode .greedy-nav .site-title,
body.light-mode .greedy-nav .site-subtitle {
  color: #dbeafe !important;
}

body.light-mode .greedy-nav button,
body.light-mode .greedy-nav__toggle {
  color: #dbeafe !important;
}

body.light-mode .sidebar.sticky,
body.light-mode .sidebar {
  background: transparent !important;
}

body.light-mode .author__avatar img {
  border-color: #bfdbfe !important;
}

body.light-mode .author__name {
  color: #1e3a8a !important;
}

body.light-mode .author__bio {
  color: #374151 !important;
}

body.light-mode .author__urls-wrapper .btn--inverse {
  background: #1e3a8a !important;
  color: #fff !important;
}

body.light-mode .author__urls a {
  color: #1d4ed8 !important;
}

body.light-mode .page__content,
body.light-mode .page__inner-wrap {
  color: #1a202c !important;
}

body.light-mode .page__content a {
  color: #1d4ed8 !important;
}

body.light-mode .page__title {
  color: #1e3a8a !important;
}

body.light-mode h1,
body.light-mode h2,
body.light-mode h3,
body.light-mode h4,
body.light-mode h5,
body.light-mode h6 {
  color: #1e3a8a !important;
}

body.light-mode table th {
  background: #dbeafe !important;
  color: #1e3a8a !important;
}

body.light-mode table td,
body.light-mode table th {
  border-color: #bfdbfe !important;
  color: #1a202c !important;
}

body.light-mode .page__footer {
  background: #1e3a8a !important;
  color: #dbeafe !important;
}

body.light-mode .page__footer a {
  color: #93c5fd !important;
}

body.light-mode .toc,
body.light-mode .toc__menu {
  background: #fff !important;
  border-color: #bfdbfe !important;
}

body.light-mode .archive__item-title a {
  color: #1d4ed8 !important;
}

body.light-mode .archive__item-excerpt {
  color: #374151 !important;
}

body.light-mode code,
body.light-mode pre {
  background: #e8f0fe !important;
  color: #1a202c !important;
}

/* ============================================
   Homepage Intro Section
   ============================================ */

.homepage-intro {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

body.light-mode .homepage-intro {
  border-bottom-color: #bfdbfe;
}

.homepage-intro p {
  font-size: 1.05rem;
  line-height: 1.75;
  margin-bottom: 0.8rem;
}

/* ============================================
   Publications / Talks Placeholder
   ============================================ */

.placeholder-note {
  font-style: italic;
  border-left: 3px solid rgba(128, 128, 128, 0.4);
  padding: 0.6rem 1rem;
  margin: 1.5rem 0;
  color: rgba(200, 200, 200, 0.75);
}

body.light-mode .placeholder-note {
  border-left-color: #93c5fd;
  color: #6b7280;
}

/* ============================================
   Blog Post List Tweaks
   ============================================ */

.list__item .archive__item-title {
  margin-top: 0.5em;
}