/* ============================================
   Cool Dark Theme - Academic Homepage
   Standalone CSS (does not touch SCSS pipeline)
   All rules scoped under body.cool-dark-theme
   ============================================ */

/* ---------- CSS Custom Properties ---------- */
body.cool-dark-theme {
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.6);
  --bg-glass: rgba(255, 255, 255, 0.05);
  --bg-glass-hover: rgba(255, 255, 255, 0.1);
  --border-glass: rgba(255, 255, 255, 0.1);
  --border-glass-hover: rgba(255, 255, 255, 0.2);
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-blue: #60a5fa;
  --accent-purple: #a78bfa;
  --accent-cyan: #22d3ee;
  --accent-pink: #f472b6;
  --gradient-text: linear-gradient(135deg, #60a5fa, #a78bfa, #f472b6);
  --gradient-accent: linear-gradient(135deg, #3b82f6, #8b5cf6);
  --gradient-card-border: linear-gradient(135deg, rgba(96,165,250,0.3), rgba(167,139,250,0.3));
  --shadow-glow: 0 0 30px rgba(96, 165, 250, 0.15);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ---------- Base Styles ---------- */
body.cool-dark-theme {
  background: var(--bg-primary) !important;
  color: var(--text-primary) !important;
  font-family: var(--font-main) !important;
  overflow-x: hidden;
  position: relative;
}

/* Particle canvas */
body.cool-dark-theme #particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* Ensure content is above canvas */
body.cool-dark-theme .masthead,
body.cool-dark-theme #main,
body.cool-dark-theme #back-to-top {
  position: relative;
  z-index: 1;
}

/* ---------- Custom Scrollbar ---------- */
body.cool-dark-theme::-webkit-scrollbar {
  width: 8px;
}
body.cool-dark-theme::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
body.cool-dark-theme::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--accent-blue), var(--accent-purple));
  border-radius: 4px;
}
body.cool-dark-theme::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--accent-cyan), var(--accent-pink));
}

/* ---------- Navbar / Masthead ---------- */
body.cool-dark-theme .masthead {
  position: fixed !important;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 48px);
  max-width: 1200px;
  background: rgba(10, 14, 26, 0.7) !important;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  z-index: 1000;
  animation: slideDown 0.6s ease-out;
  padding: 0 !important;
}

body.cool-dark-theme .masthead__inner-wrap {
  padding: 0 24px !important;
  max-width: 100% !important;
}

body.cool-dark-theme .greedy-nav {
  background: transparent !important;
  max-width: 100% !important;
}

body.cool-dark-theme .greedy-nav a {
  color: var(--text-secondary) !important;
  font-weight: 500;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  transition: color var(--transition-fast), text-shadow var(--transition-fast);
  text-decoration: none;
}

body.cool-dark-theme .greedy-nav a:hover {
  color: var(--accent-blue) !important;
  text-shadow: 0 0 12px rgba(96, 165, 250, 0.4);
}

body.cool-dark-theme .masthead__menu-item--lg a {
  color: var(--text-primary) !important;
  font-weight: 700;
  font-size: 1rem;
}

body.cool-dark-theme .greedy-nav .visible-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

body.cool-dark-theme .greedy-nav .visible-links li {
  padding: 0.5em 0.6em !important;
}

/* Space for fixed navbar */
body.cool-dark-theme #main {
  padding-top: 80px;
}

/* ---------- Sidebar ---------- */
body.cool-dark-theme .sidebar {
  background: var(--bg-glass) !important;
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-right: 1px solid var(--border-glass);
  padding-top: 90px !important;
}

body.cool-dark-theme .profile_box {
  background: transparent !important;
}

body.cool-dark-theme .author__avatar img {
  border: 3px solid transparent;
  background-image: linear-gradient(var(--bg-secondary), var(--bg-secondary)),
                    linear-gradient(135deg, var(--accent-blue), var(--accent-purple), var(--accent-pink));
  background-origin: border-box;
  background-clip: content-box, border-box;
  border-radius: 50%;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

body.cool-dark-theme .author__avatar img:hover {
  transform: scale(1.05);
  box-shadow: 0 0 24px rgba(96, 165, 250, 0.3);
}

body.cool-dark-theme .author__name {
  color: var(--text-primary) !important;
  font-weight: 700 !important;
  font-size: 1.2rem !important;
}

body.cool-dark-theme .author__bio {
  color: var(--text-secondary) !important;
  font-size: 0.85rem;
}

body.cool-dark-theme .author__urls-wrapper {
  color: var(--text-secondary) !important;
}

body.cool-dark-theme .author__urls a,
body.cool-dark-theme .author__urls li {
  color: var(--text-secondary) !important;
  transition: color var(--transition-fast);
}

body.cool-dark-theme .author__urls a:hover {
  color: var(--accent-blue) !important;
}

body.cool-dark-theme .author__urls .social-icons li div {
  color: var(--text-secondary) !important;
}

body.cool-dark-theme .author__urls_sm a {
  color: var(--text-secondary) !important;
  transition: color var(--transition-fast);
}

body.cool-dark-theme .author__urls_sm a:hover {
  color: var(--accent-blue) !important;
}

/* Typing cursor for author name */
body.cool-dark-theme .author__name .typing-cursor {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  background: var(--accent-blue);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: cursorBlink 1s step-end infinite;
}

/* ---------- Main Content Area ---------- */
body.cool-dark-theme .page {
  background: transparent !important;
  color: var(--text-primary) !important;
}

body.cool-dark-theme .page__content {
  color: var(--text-primary) !important;
  font-size: 1rem;
  line-height: 1.8;
}

/* ---------- Section Headings (h1 with gradient text) ---------- */
body.cool-dark-theme .page__content h1 {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
  font-size: 2rem;
  margin-top: 3rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-glass);
  position: relative;
}

body.cool-dark-theme .page__content h1::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 80px;
  height: 3px;
  background: var(--gradient-accent);
  border-radius: 2px;
}

body.cool-dark-theme .page__content h2 {
  color: var(--text-primary) !important;
  font-weight: 700;
  font-size: 1.4rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
}

body.cool-dark-theme .page__content h3 {
  color: var(--text-primary) !important;
  font-weight: 600;
}

/* ---------- Links ---------- */
body.cool-dark-theme .page__content a {
  color: var(--accent-blue) !important;
  text-decoration: none;
  transition: color var(--transition-fast), text-shadow var(--transition-fast);
  border-bottom: 1px solid transparent;
}

body.cool-dark-theme .page__content a:hover {
  color: var(--accent-cyan) !important;
  text-shadow: 0 0 8px rgba(96, 165, 250, 0.3);
  border-bottom-color: var(--accent-cyan);
}

/* ---------- Paragraphs & text ---------- */
body.cool-dark-theme .page__content p {
  color: var(--text-secondary) !important;
  line-height: 1.8;
}

body.cool-dark-theme .page__content strong {
  color: var(--text-primary) !important;
}

/* ---------- Blockquotes ---------- */
body.cool-dark-theme .page__content blockquote {
  background: var(--bg-glass) !important;
  border-left: 4px solid var(--accent-purple) !important;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

body.cool-dark-theme .page__content blockquote p {
  color: var(--text-secondary) !important;
  font-style: italic;
}

/* ---------- Lists (general) ---------- */
body.cool-dark-theme .page__content ul li,
body.cool-dark-theme .page__content ol li {
  color: var(--text-secondary) !important;
  margin-bottom: 0.3rem;
}

/* ---------- News Section (Timeline Style) ---------- */
body.cool-dark-theme .page__content h1#-news + ul,
body.cool-dark-theme .page__content h1[id*="news"] + ul {
  list-style: none !important;
  padding-left: 24px !important;
  border-left: 2px solid var(--border-glass);
  position: relative;
}

body.cool-dark-theme .page__content h1#-news + ul li,
body.cool-dark-theme .page__content h1[id*="news"] + ul li {
  position: relative;
  padding: 0.6rem 0 0.6rem 20px;
  margin-bottom: 0.4rem;
  transition: transform var(--transition-fast);
}

body.cool-dark-theme .page__content h1#-news + ul li::before,
body.cool-dark-theme .page__content h1[id*="news"] + ul li::before {
  content: '';
  position: absolute;
  left: -29px;
  top: 1.1rem;
  width: 10px;
  height: 10px;
  background: var(--gradient-accent);
  border-radius: 50%;
  border: 2px solid var(--bg-primary);
  box-shadow: 0 0 8px rgba(96, 165, 250, 0.4);
}

body.cool-dark-theme .page__content h1#-news + ul li:hover,
body.cool-dark-theme .page__content h1[id*="news"] + ul li:hover {
  transform: translateX(4px);
}

/* ---------- Publication Cards (.paper-box) ---------- */
body.cool-dark-theme .paper-box {
  background: var(--bg-glass) !important;
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid var(--border-glass) !important;
  border-radius: var(--radius-lg) !important;
  padding: 20px !important;
  margin-bottom: 24px !important;
  transition: transform var(--transition-normal),
              box-shadow var(--transition-normal),
              border-color var(--transition-normal);
  box-shadow: var(--shadow-card);
}

body.cool-dark-theme .paper-box:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow), 0 16px 48px rgba(0, 0, 0, 0.4);
  border-color: var(--border-glass-hover) !important;
}

body.cool-dark-theme .paper-box-image {
  border-radius: var(--radius-md);
  overflow: hidden;
}

body.cool-dark-theme .paper-box-image img {
  border-radius: var(--radius-md);
  transition: transform var(--transition-slow);
}

body.cool-dark-theme .paper-box:hover .paper-box-image img {
  transform: scale(1.03);
}

body.cool-dark-theme .paper-box-text {
  color: var(--text-secondary) !important;
}

body.cool-dark-theme .paper-box-text p {
  color: var(--text-secondary) !important;
}

/* Conference badges */
body.cool-dark-theme .badge {
  background: var(--gradient-accent) !important;
  color: #fff !important;
  padding: 4px 12px !important;
  border-radius: 20px !important;
  font-size: 0.75rem !important;
  font-weight: 600 !important;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  box-shadow: 0 0 16px rgba(96, 165, 250, 0.3);
  animation: glowPulse 3s ease-in-out infinite;
}

/* ---------- Education Cards (.school-box) ---------- */
body.cool-dark-theme .school-box {
  background: var(--bg-glass) !important;
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid var(--border-glass) !important;
  border-radius: var(--radius-lg) !important;
  padding: 20px !important;
  margin-bottom: 16px;
  transition: transform var(--transition-normal),
              box-shadow var(--transition-normal),
              border-color var(--transition-normal);
  box-shadow: var(--shadow-card);
}

body.cool-dark-theme .school-box:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow), 0 12px 40px rgba(0, 0, 0, 0.3);
  border-color: var(--border-glass-hover) !important;
}

body.cool-dark-theme .school-box img {
  border-radius: var(--radius-sm);
  transition: transform var(--transition-normal);
}

body.cool-dark-theme .school-box:hover img {
  transform: scale(1.05);
}

body.cool-dark-theme .school-box-text {
  color: var(--text-secondary) !important;
}

body.cool-dark-theme .school-box-text b {
  color: var(--text-primary) !important;
}

/* ---------- Honors & Awards / Collaborators lists ---------- */
body.cool-dark-theme .page__content h1#-honors-and-awards + ul,
body.cool-dark-theme .page__content h1[id*="honors"] + ul {
  list-style: none !important;
  padding-left: 0 !important;
}

body.cool-dark-theme .page__content h1#-honors-and-awards + ul li,
body.cool-dark-theme .page__content h1[id*="honors"] + ul li {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  margin-bottom: 8px;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

body.cool-dark-theme .page__content h1#-honors-and-awards + ul li:hover,
body.cool-dark-theme .page__content h1[id*="honors"] + ul li:hover {
  transform: translateX(6px);
  border-color: var(--border-glass-hover);
}

/* ---------- Scroll-triggered fade-in ---------- */
body.cool-dark-theme .fade-in-section {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

body.cool-dark-theme .fade-in-section.is-visible {
  opacity: 1;
  transform: translateY(0);
}

body.cool-dark-theme .fade-in-item {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

body.cool-dark-theme .fade-in-item.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Back to Top Button ---------- */
body.cool-dark-theme #back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(10, 14, 26, 0.7);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid var(--border-glass);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: opacity var(--transition-normal),
              visibility var(--transition-normal),
              transform var(--transition-normal),
              background var(--transition-fast),
              border-color var(--transition-fast);
  z-index: 999;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

body.cool-dark-theme #back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

body.cool-dark-theme #back-to-top:hover {
  background: rgba(96, 165, 250, 0.15);
  border-color: var(--accent-blue);
  box-shadow: 0 0 20px rgba(96, 165, 250, 0.3);
}

body.cool-dark-theme #back-to-top svg {
  width: 20px;
  height: 20px;
}

/* ---------- HR / Dividers ---------- */
body.cool-dark-theme hr {
  border: none;
  height: 1px;
  background: var(--border-glass);
  margin: 2rem 0;
}

/* ---------- Code blocks ---------- */
body.cool-dark-theme pre,
body.cool-dark-theme code {
  background: rgba(0, 0, 0, 0.3) !important;
  color: var(--accent-cyan) !important;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-glass);
}

/* ---------- Font elements inside content ---------- */
body.cool-dark-theme .page__content font[color="DarkRed"] {
  color: var(--accent-pink) !important;
}

/* ---------- Keyframe Animations ---------- */
@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

@keyframes glowPulse {
  0%, 100% {
    box-shadow: 0 0 16px rgba(96, 165, 250, 0.3);
  }
  50% {
    box-shadow: 0 0 24px rgba(167, 139, 250, 0.5);
  }
}

@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

@keyframes cursorBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- Responsive: Tablet ---------- */
@media screen and (max-width: 1024px) {
  body.cool-dark-theme .masthead {
    width: calc(100% - 24px);
    top: 8px;
    border-radius: var(--radius-md);
  }

  body.cool-dark-theme .greedy-nav a {
    font-size: 0.8rem;
  }

  body.cool-dark-theme .greedy-nav .visible-links li {
    padding: 0.4em 0.4em !important;
  }
}

/* ---------- Responsive: Mobile ---------- */
@media screen and (max-width: 768px) {
  body.cool-dark-theme .masthead {
    width: calc(100% - 16px);
    top: 6px;
    border-radius: var(--radius-md);
  }

  body.cool-dark-theme #main {
    padding-top: 70px;
  }

  body.cool-dark-theme .sidebar {
    position: relative !important;
    width: 100% !important;
    border-right: none;
    border-bottom: 1px solid var(--border-glass);
    padding-top: 70px !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }

  body.cool-dark-theme .page__content h1 {
    font-size: 1.6rem;
  }

  body.cool-dark-theme .paper-box {
    flex-direction: column !important;
    padding: 16px !important;
  }

  body.cool-dark-theme .paper-box:hover {
    transform: translateY(-3px);
  }

  body.cool-dark-theme #back-to-top {
    bottom: 20px;
    right: 20px;
    width: 42px;
    height: 42px;
  }

  body.cool-dark-theme .page__content h1#-news + ul li::before,
  body.cool-dark-theme .page__content h1[id*="news"] + ul li::before {
    left: -27px;
    width: 8px;
    height: 8px;
  }
}

/* ---------- Responsive: Small Mobile ---------- */
@media screen and (max-width: 480px) {
  body.cool-dark-theme .greedy-nav .visible-links li:not(.masthead__menu-item--lg) {
    display: none;
  }

  body.cool-dark-theme .page__content h1 {
    font-size: 1.4rem;
  }
}

/* ---------- Selection color ---------- */
body.cool-dark-theme ::selection {
  background: rgba(96, 165, 250, 0.3);
  color: var(--text-primary);
}

body.cool-dark-theme ::-moz-selection {
  background: rgba(96, 165, 250, 0.3);
  color: var(--text-primary);
}

/* ---------- Greedy nav button (mobile hamburger) ---------- */
body.cool-dark-theme .greedy-nav button {
  background: transparent !important;
  color: var(--text-secondary) !important;
}

body.cool-dark-theme .greedy-nav .navicon {
  background: var(--text-secondary);
}

body.cool-dark-theme .greedy-nav .navicon::before,
body.cool-dark-theme .greedy-nav .navicon::after {
  background: var(--text-secondary);
}

body.cool-dark-theme .greedy-nav .hidden-links {
  background: rgba(10, 14, 26, 0.95) !important;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
}

body.cool-dark-theme .greedy-nav .hidden-links li a {
  color: var(--text-secondary) !important;
}

body.cool-dark-theme .greedy-nav .hidden-links li a:hover {
  color: var(--accent-blue) !important;
}

/* ---------- Revolver maps container override ---------- */
body.cool-dark-theme .page__content > body {
  display: block;
  background: transparent !important;
}

/* ---------- Smooth transitions for page load ---------- */
body.cool-dark-theme .page__content > * {
  animation: fadeInUp 0.6s ease-out backwards;
}

body.cool-dark-theme .page__content > *:nth-child(1) { animation-delay: 0.1s; }
body.cool-dark-theme .page__content > *:nth-child(2) { animation-delay: 0.15s; }
body.cool-dark-theme .page__content > *:nth-child(3) { animation-delay: 0.2s; }
body.cool-dark-theme .page__content > *:nth-child(4) { animation-delay: 0.25s; }
body.cool-dark-theme .page__content > *:nth-child(5) { animation-delay: 0.3s; }

/* ---------- Research interests sub-sections ---------- */
body.cool-dark-theme .page__content h2 + ul {
  padding-left: 20px;
}

body.cool-dark-theme .page__content h2 + ul li {
  padding: 4px 0;
  line-height: 1.7;
}

/* ---------- Collaborator list styling ---------- */
body.cool-dark-theme .page__content h1[id*="collaborator"] + blockquote + ul,
body.cool-dark-theme .page__content h1#-collaborators + blockquote + ul {
  list-style: none !important;
  padding-left: 0 !important;
}

body.cool-dark-theme .page__content h1[id*="collaborator"] + blockquote + ul li,
body.cool-dark-theme .page__content h1#-collaborators + blockquote + ul li {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  margin-bottom: 8px;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

body.cool-dark-theme .page__content h1[id*="collaborator"] + blockquote + ul li:hover,
body.cool-dark-theme .page__content h1#-collaborators + blockquote + ul li:hover {
  transform: translateX(6px);
  border-color: var(--border-glass-hover);
}

/* ---------- Research Experience list ---------- */
body.cool-dark-theme .page__content h1#-research-experiences + ul,
body.cool-dark-theme .page__content h1[id*="research-experience"] + ul {
  list-style: none !important;
  padding-left: 0 !important;
}

body.cool-dark-theme .page__content h1#-research-experiences + ul li,
body.cool-dark-theme .page__content h1[id*="research-experience"] + ul li {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  margin-bottom: 8px;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

body.cool-dark-theme .page__content h1#-research-experiences + ul li:hover,
body.cool-dark-theme .page__content h1[id*="research-experience"] + ul li:hover {
  transform: translateX(6px);
  border-color: var(--border-glass-hover);
}