/* ===== VARIABLES ===== */
:root {
  --primary-color: #00c896;
  --primary-light: rgba(0, 200, 150, 0.1);
  --bg-dark: #0e101c;
  --bg-card: #1a1e30;
  --bg-header: #1c1f2b;
  --bg-nav: #1e2235;
  --text-light: #fff;
  --text-muted: #bbc0d4;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.15);
  --transition: all 0.3s ease;
}

/* Light Theme Variables */
.light-theme {
  --bg-dark: #f7f9fc;
  --bg-card: #ffffff;
  --bg-header: #f0f4f8;
  --bg-nav: #ffffff;
  --text-light: #333;
  --text-muted: #6b7280;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.05);
}

/* ===== GLOBAL STYLES ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: var(--bg-dark);
  color: var(--text-light);
  line-height: 1.7;
  transition: background-color 0.3s ease, color 0.3s ease;
  overflow-x: hidden;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 6rem 0;
}

img {
  max-width: 100%;
}

a {
  text-decoration: none;
  color: var(--primary-color);
  transition: var(--transition);
  font-weight: 500;
}

a:hover {
  color: var(--text-light);
}

.btn {
  display: inline-block;
  background: var(--primary-color);
  color: #fff;
  padding: 0.8rem 1.8rem;
  border-radius: 6px;
  text-decoration: none;
  transition: var(--transition);
  border: 2px solid var(--primary-color);
  font-weight: 600;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 12px rgba(0, 200, 150, 0.2);
}

.btn:hover {
  background: transparent;
  color: var(--primary-color);
  box-shadow: 0 6px 16px rgba(0, 200, 150, 0.3);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--primary-color);
  box-shadow: none;
}

.btn-outline:hover {
  background: var(--primary-color);
  color: #fff;
  box-shadow: 0 4px 12px rgba(0, 200, 150, 0.2);
}

.btn-block {
  display: block;
  width: 100%;
  text-align: center;
}

/* ===== HEADER ===== */
header {
  background: linear-gradient(135deg, var(--bg-header) 0%, #1a2339 100%);
  padding: 7rem 0 5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 20% 150%, rgba(0, 200, 150, 0.1) 0%, transparent 70%);
}

.profile-container {
  position: relative;
  z-index: 2;
}

.profile-img {
  width: 300px;
  height: 300px;
  border-radius: 50%;
  border: 4px solid var(--primary-color);
  margin-bottom: 2rem;
  object-fit: cover;
  box-shadow: 0 0 30px rgba(0, 200, 150, 0.3);
}

header h1 {
  font-size: 3.5rem;
  margin: 0;
  letter-spacing: 1px;
  font-weight: 700;
}

header p {
  font-size: 1.3rem;
  color: var(--primary-color);
  margin-top: 0.5rem;
  font-weight: 500;
}

.social-links {
  margin-top: 2rem;
  display: flex;
  justify-content: center;
  gap: 1.5rem;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-light);
  transition: var(--transition);
}

.social-links a:hover {
  background: var(--primary-color);
  transform: translateY(-3px);
  color: #fff;
  box-shadow: 0 5px 15px rgba(0, 200, 150, 0.3);
}

/* ===== NAVIGATION ===== */
nav {
  background: var(--bg-nav);
  padding: 1.2rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: bold;
  font-size: 1.8rem;
  color: var(--primary-color);
  letter-spacing: 1px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2.5rem;
}

.nav-links a {
  color: var(--text-light);
  position: relative;
  padding: 0.5rem 0;
  font-weight: 500;
  letter-spacing: 0.5px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: width 0.3s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

.theme-toggle, .mobile-menu-btn {
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 1.3rem;
  cursor: pointer;
  transition: var(--transition);
  padding: 0.5rem;
}

.theme-toggle:hover, .mobile-menu-btn:hover {
  color: var(--primary-color);
}

.mobile-menu-btn {
  display: none;
}

/* ===== SECTION HEADERS ===== */
.section-header {
  text-align: center;
  margin-bottom: 5rem;
}

.section-header h2 {
  font-size: 2.8rem;
  position: relative;
  display: inline-block;
  margin-bottom: 1.5rem;
  font-weight: 700;
}

.section-header h2::after {
  content: '';
  position: absolute;
  width: 70px;
  height: 4px;
  background: var(--primary-color);
  bottom: -12px;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 2px;
}

.section-header p {
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto;
  font-size: 1.1rem;
  line-height: 1.6;
}

/* ===== ABOUT SECTION ===== */
.about-content {
  display: flex;
  gap: 4rem;
  align-items: center;
}

.about-text {
  max-width: 800px;
  margin: 0 auto;
}

.about-text p {
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

/* ===== PROJECTS SECTION ===== */
.projects-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
  gap: 3.5rem;
  justify-content: center;
  margin: 0 auto;
}

.project-card {
  background: var(--bg-card);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
  max-width: 420px;
  width: 100%;
  margin: 0 auto;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.project-img {
  height: 240px;
  overflow: hidden;
  position: relative;
}

.project-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.project-card:hover .project-img img {
  transform: scale(1.08);
}

.project-content {
  padding: 2.5rem;
}

.project-content h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
  font-size: 1.6rem;
  font-weight: 700;
}

.project-content p {
  margin-bottom: 1.8rem;
  color: var(--text-light);
  line-height: 1.7;
  font-size: 1.05rem;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 2rem;
}

.project-tags span {
  background: var(--primary-light);
  color: var(--primary-color);
  padding: 0.4rem 1.2rem;
  border-radius: 30px;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.5px;
}

.project-links {
  display: flex;
  gap: 2rem;
  justify-content: flex-start;
  margin-top: 1.5rem;
}

.project-links a {
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.05rem;
}

.project-links a i {
  transition: transform 0.3s ease;
}

.project-links a:hover i {
  transform: translateX(3px);
}

/* ===== EDUCATION SECTION ===== */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 20px;
  width: 3px;
  height: 100%;
  background: var(--primary-color);
}

.timeline-item {
  background: var(--bg-card);
  border-radius: 12px;
  padding: 2rem;
  margin-bottom: 2.5rem;
  margin-left: 50px;
  position: relative;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.timeline-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.25);
}

.timeline-item::before {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary-color);
  left: -34px;
  top: 28px;
  box-shadow: 0 0 0 4px rgba(0, 200, 150, 0.2);
}

.timeline-item h3 {
  color: var(--primary-color);
  margin-bottom: 0.8rem;
  font-size: 1.4rem;
  font-weight: 700;
}

.timeline-date {
  color: var(--text-muted);
  font-style: italic;
  margin-bottom: 1rem;
  font-size: 1rem;
}

/* ===== SKILLS SECTION ===== */
.skills {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 2.5rem;
}

.skill-card {
  background: var(--bg-card);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.skill-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.25);
}

.skill-card img {
  width: 70px;
  height: 70px;
  margin-bottom: 1.5rem;
}

.skill-card h3 {
  margin-bottom: 1.2rem;
  color: var(--primary-color);
  font-size: 1.4rem;
  font-weight: 700;
}

.skill-level {
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  overflow: hidden;
  margin-top: 1rem;
}

.skill-bar {
  height: 8px;
  background-color: #4caf50; /* green */
  border-radius: 5px;
}

/* ===== PUBLICATIONS SECTION ===== */
.publications-list {
  display: grid;
  gap: 2.5rem;
}

.publication-card {
  background: var(--bg-card);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border-left: 5px solid var(--primary-color);
}

.publication-card:hover {
  transform: translateX(8px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.25);
}

.publication-card h3 {
  color: var(--primary-color);
  margin-bottom: 0.8rem;
  font-size: 1.4rem;
  font-weight: 700;
}

.publication-date, .publication-authors {
  color: var(--text-muted);
  margin-bottom: 0.8rem;
  font-size: 0.95rem;
}

.publication-abstract {
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

.publication-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 1.05rem;
}

.publication-link i {
  font-size: 0.9rem;
}

/* ===== CONTACT SECTION ===== */
.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.contact-item i {
  font-size: 1.8rem;
  color: var(--primary-color);
}

.contact-item h3 {
  margin-bottom: 0.8rem;
  font-size: 1.3rem;
}

.form-group {
  margin-bottom: 2rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.8rem;
  font-weight: 500;
}

.form-group input, .form-group textarea {
  width: 100%;
  padding: 1rem;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-light);
  transition: var(--transition);
  font-family: inherit;
  font-size: 1rem;
}

.form-group input:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 200, 150, 0.2);
}

/* ===== FOOTER ===== */
footer {
  background: var(--bg-header);
  padding: 4rem 0 1.5rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-logo h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
  font-size: 1.8rem;
  font-weight: 700;
}

.footer-links h3, .footer-social h3 {
  margin-bottom: 1.2rem;
  font-size: 1.3rem;
  font-weight: 600;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.8rem;
}

.footer-social .social-links {
  justify-content: flex-start;
}

.footer-bottom {
  text-align: center;
  padding-top: 2.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 0.8rem;
}

/* ===== MEDIA QUERIES ===== */
@media screen and (max-width: 1024px) {
  .projects-grid {
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 3rem;
  }
}

@media screen and (max-width: 992px) {
  .contact-content {
    grid-template-columns: 1fr;
  }
  
  .about-content {
    flex-direction: column;
    text-align: center;
  }
}

@media screen and (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: var(--bg-nav);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: 0.3s ease-in-out;
    padding: 2rem 0;
  }
  
  .nav-links.active {
    left: 0;
  }
  
  .nav-links li {
    margin: 1.5rem 0;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .timeline-item {
    width: 100%;
    margin-left: 50px;
  }
  
  .timeline::before {
    left: 20px;
  }
  
  .skills {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .project-card {
    max-width: 100%;
  }
}

@media screen and (max-width: 576px) {
  section {
    padding: 5rem 0;
  }
  
  header {
    padding: 5rem 0 4rem;
  }
  
  header h1 {
    font-size: 2.8rem;
  }
  
  .section-header h2 {
    font-size: 2.3rem;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .project-card {
    max-width: 100%;
  }
  
  .project-content {
    padding: 2rem;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-social .social-links {
    justify-content: center;
  }
}
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.scroll-fade, .scroll-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.in-view.scroll-fade {
  animation: fadeIn 0.8s ease forwards;
}

.in-view.scroll-up {
  animation: fadeInUp 0.8s ease forwards;
}

.publications-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.publication-card {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 1.5rem;
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 14px;
  padding: 1rem;
  box-shadow: 0 2px 10px rgba(0,0,0,0.03);
}

.pub-media {
  flex: 1 1 320px;
  max-width: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: 10px;
}

.pub-media video,
.pub-media iframe,
.pub-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 10px;
}

.pub-content { flex: 2 1 400px; min-width: 260px; }
.pub-content h3 { margin-top: 0; font-size: 1.25rem; }

.publication-date { color: #6b7280; font-size: 0.9rem; margin-bottom: 0.25rem; }
.publication-authors { color: #374151; font-size: 0.95rem; margin-bottom: 0.75rem; }
.publication-abstract { font-size: 0.95rem; margin-bottom: 0.75rem; }

.publication-links a { margin-right: 12px; color: #2563eb; text-decoration: none; }
.publication-links a:hover { text-decoration: underline; }

@media (max-width: 768px) {
  .publication-card { flex-direction: column; }
  .pub-media, .pub-content { max-width: 100%; }
}

/* === Publication Card Theming (Light + Dark) === */

/* Light theme defaults */
:root {
  --card-bg: #ffffff;
  --card-border: #e5e7eb;
  --card-shadow: 0 2px 10px rgba(0,0,0,0.03);
}

.publication-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  box-shadow: var(--card-shadow);
  padding: 1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 1.5rem;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.pub-media {
  flex: 1 1 320px;
  max-width: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: 10px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
}

.pub-media video,
.pub-media iframe,
.pub-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 10px;
  display: block;
}

.pub-content {
  flex: 2 1 400px;
  min-width: 260px;
}

.pub-content h3 {
  margin-top: 0;
  font-size: 1.25rem;
}

.publication-date {
  color: #6b7280;
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
}

.publication-authors {
  color: #374151;
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}

.publication-abstract {
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}

.publication-links a {
  margin-right: 12px;
  color: #2563eb;
  text-decoration: none;
}

.publication-links a:hover {
  text-decoration: underline;
}

/* --- Auto Dark Mode (based on system setting) --- */
@media (prefers-color-scheme: dark) {
  :root {
    --card-bg: rgba(255,255,255,0.06);
    --card-border: rgba(255,255,255,0.14);
    --card-shadow: 0 8px 30px rgba(0,0,0,0.35);
  }

  .publication-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    box-shadow: var(--card-shadow);
    backdrop-filter: saturate(120%) blur(6px);
  }

  .pub-media {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
  }

  .publication-date { color: #9ca3af; }
  .publication-authors { color: #d1d5db; }
  .publication-abstract { color: #e5e7eb; }
  .publication-links a { color: #93c5fd; }
}

/* --- Manual Toggle (if your site adds body.dark) --- */
body.dark {
  --card-bg: rgba(255,255,255,0.06);
  --card-border: rgba(255,255,255,0.14);
  --card-shadow: 0 8px 30px rgba(0,0,0,0.35);
}

body.dark .publication-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  box-shadow: var(--card-shadow);
  backdrop-filter: saturate(120%) blur(6px);
}

body.dark .pub-media {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
}

body.dark .publication-date { color: #9ca3af; }
body.dark .publication-authors { color: #d1d5db; }
body.dark .publication-abstract { color: #e5e7eb; }
body.dark .publication-links a { color: #93c5fd; }

/* --- Responsive layout --- */
@media (max-width: 768px) {
  .publication-card {
    flex-direction: column;
  }
  .pub-media, .pub-content {
    max-width: 100%;
  }
}

/* ==== Publications Card Dark/Light Fix (paste at END of styles.css) ==== */

/* Base variables (fallbacks) */
:root {
  --card-bg: #ffffff;
  --card-border: #e5e7eb;
  --card-shadow: 0 2px 10px rgba(0,0,0,0.06);
  --card-date: #6b7280;
  --card-authors: #374151;
  --card-abstract: #374151;
  --card-link: #2563eb;
}

/* LIGHT mode (match your site's toggle; keep all) */
body:not(.dark),
html:not(.dark),
:root[data-theme="light"],
[data-theme="light"] {
  --card-bg: #ffffff;
  --card-border: #e5e7eb;
  --card-shadow: 0 2px 10px rgba(0,0,0,0.06);
  --card-date: #6b7280;
  --card-authors: #374151;
  --card-abstract: #374151;
  --card-link: #2563eb;
}

/* DARK mode (support common toggles) */
body.dark,
html.dark,
:root[data-theme="dark"],
[data-theme="dark"] {
  --card-bg: rgba(255,255,255,0.06);
  --card-border: rgba(255,255,255,0.14);
  --card-shadow: 0 8px 30px rgba(0,0,0,0.35);
  --card-date: #9ca3af;
  --card-authors: #d1d5db;
  --card-abstract: #e5e7eb;
  --card-link: #93c5fd;
}

/* Force the publications UI to use the variables, overriding earlier white bg */
#publications .publication-card,
.section#publications .publication-card,
.publications-list .publication-card {
  background: var(--card-bg) !important;
  border: 1px solid var(--card-border) !important;
  box-shadow: var(--card-shadow) !important;
  border-radius: 14px;
  transition: background .2s ease, box-shadow .2s ease, border-color .2s ease;
  backdrop-filter: saturate(120%) blur(6px);
}

#publications .pub-media,
.section#publications .pub-media,
.publications-list .pub-media {
  background: var(--card-bg) !important;
  border: 1px solid var(--card-border) !important;
  border-radius: 10px;
  overflow: hidden;
}

#publications .publication-date { color: var(--card-date) !important; }
#publications .publication-authors { color: var(--card-authors) !important; }
#publications .publication-abstract { color: var(--card-abstract) !important; }
#publications .publication-links a { color: var(--card-link) !important; }

/* Media sizing (kept here so overrides live together) */
#publications .pub-media video,
#publications .pub-media iframe,
#publications .pub-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Responsive */
@media (max-width: 768px) {
  #publications .publication-card { flex-direction: column; }
}

/* ==== Publications cards: theme-aware (uses body.light-theme) ==== */

/* Variables (fallbacks) */
:root {
  --pub-card-bg-light: #ffffff;
  --pub-card-border-light: #e5e7eb;
  --pub-card-shadow-light: 0 2px 10px rgba(0,0,0,0.06);

  --pub-card-bg-dark: rgba(255,255,255,0.06);
  --pub-card-border-dark: rgba(255,255,255,0.14);
  --pub-card-shadow-dark: 0 8px 30px rgba(0,0,0,0.35);

  --pub-date-light: #6b7280;
  --pub-authors-light: #374151;
  --pub-abstract-light: #374151;
  --pub-link-light: #2563eb;

  --pub-date-dark: #9ca3af;
  --pub-authors-dark: #d1d5db;
  --pub-abstract-dark: #e5e7eb;
  --pub-link-dark: #93c5fd;
}

/* LIGHT mode = body has class "light-theme" */
body.light-theme #publications .publication-card {
  background: var(--pub-card-bg-light) !important;
  border: 1px solid var(--pub-card-border-light) !important;
  box-shadow: var(--pub-card-shadow-light) !important;
  border-radius: 14px;
  transition: background .2s, box-shadow .2s, border-color .2s;
}

body.light-theme #publications .pub-media {
  background: var(--pub-card-bg-light) !important;
  border: 1px solid var(--pub-card-border-light) !important;
  border-radius: 10px;
  overflow: hidden;
}

body.light-theme #publications .publication-date    { color: var(--pub-date-light) !important; }
body.light-theme #publications .publication-authors { color: var(--pub-authors-light) !important; }
body.light-theme #publications .publication-abstract{ color: var(--pub-abstract-light) !important; }
body.light-theme #publications .publication-links a { color: var(--pub-link-light) !important; }

/* DARK mode = body has NO "light-theme" class */
body:not(.light-theme) #publications .publication-card {
  background: var(--pub-card-bg-dark) !important;
  border: 1px solid var(--pub-card-border-dark) !important;
  box-shadow: var(--pub-card-shadow-dark) !important;
  border-radius: 14px;
  transition: background .2s, box-shadow .2s, border-color .2s;
  backdrop-filter: saturate(120%) blur(6px);
}

body:not(.light-theme) #publications .pub-media {
  background: var(--pub-card-bg-dark) !important;
  border: 1px solid var(--pub-card-border-dark) !important;
  border-radius: 10px;
  overflow: hidden;
}

body:not(.light-theme) #publications .publication-date    { color: var(--pub-date-dark) !important; }
body:not(.light-theme) #publications .publication-authors { color: var(--pub-authors-dark) !important; }
body:not(.light-theme) #publications .publication-abstract{ color: var(--pub-abstract-dark) !important; }
body:not(.light-theme) #publications .publication-links a { color: var(--pub-link-dark) !important; }

/* Media sizing */
#publications .pub-media video,
#publications .pub-media iframe,
#publications .pub-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Responsive */
@media (max-width: 768px) {
  #publications .publication-card { flex-direction: column; }
}

/* === Contact section layout === */
#contact .contact-info {
  display: flex;
  justify-content: center;
  align-items: stretch;
  gap: 2rem;
  flex-wrap: wrap; /* makes it wrap on small screens */
  margin-top: 2rem;
}

#contact .contact-item {
  flex: 1 1 250px;
  background: var(--card-bg, rgba(255,255,255,0.05));
  border: 1px solid var(--card-border, rgba(255,255,255,0.1));
  border-radius: 12px;
  padding: 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  text-align: left;
  transition: background 0.3s ease, transform 0.2s ease;
}

#contact .contact-item:hover {
  transform: translateY(-4px);
  background: var(--card-bg-hover, rgba(255,255,255,0.1));
}

#contact .contact-item i {
  font-size: 1.8rem;
  color: var(--accent-color, #2563eb);
  flex-shrink: 0;
}

#contact .contact-item h3 {
  margin: 0;
  font-size: 1.1rem;
}

#contact .contact-item p {
  margin: 0.25rem 0 0;
}

#contact .contact-item a {
  color: var(--accent-color, #2563eb);
  text-decoration: none;
}

#contact .contact-item a:hover {
  text-decoration: underline;
}

/* Dark mode (if your site uses body.light-theme toggle) */
body:not(.light-theme) #contact .contact-item {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.14);
}

/* === Disable hover jump on publication cards === */
.publication-card,
#publications .publication-card {
  transform: none !important;
  transition: none !important;
}

.publication-card:hover,
#publications .publication-card:hover {
  transform: none !important;
  box-shadow: inherit !important; /* keeps same shadow on hover */
}

/* ==== Stop hover "jump" in Publications (final override) ==== */

/* 1) Freeze layout + visuals (both normal and hover) */
#publications .publication-card,
#publications .publication-card:hover,
#publications .publication-card:focus,
#publications .publication-card:focus-within {
  transform: none !important;
  translate: 0 !important;  /* modern logical transform */
  scale: 1 !important;
  margin-top: 0 !important;
  margin-bottom: 0 !important;
  border-width: 1px !important;       /* prevents border-thickness jump */
  box-shadow: inherit !important;      /* same shadow on hover */
  transition: none !important;         /* kill any animations */
}

/* 2) Also neutralize transforms on any child (images/video/icon wrappers, links, etc.) */
#publications .publication-card *,
#publications .publication-card *:hover,
#publications .publication-card *:focus {
  transform: none !important;
  translate: 0 !important;
  scale: 1 !important;
  transition: none !important;
}

/* 3) Some themes apply hover on ancestor selectors; hard-stop those too */
#publications .pub-media,
#publications .pub-media:hover,
#publications .pub-media img,
#publications .pub-media img:hover,
#publications .pub-media video,
#publications .pub-media video:hover {
  transform: none !important;
  translate: 0 !important;
  scale: 1 !important;
  transition: none !important;
}

/* 4) If a link wraps the whole card somewhere in your CSS, freeze that as well */
#publications a.publication-card,
#publications a.publication-card:hover {
  transform: none !important;
  translate: 0 !important;
  scale: 1 !important;
  transition: none !important;
}

<style>
.pub-media video {
  width: 100%;
  height: auto;
  object-fit: contain; /* ensures no part of the video is cut off */
  border-radius: 10px; /* optional */
  display: block;
  max-height: 80vh; /* prevents it from getting too tall */
  margin: 0 auto;
}
</style>