/* sciNeurotech Lab - Main Stylesheet */

:root {
  --primary-color: #1a365d;
  --secondary-color: #2c5282;
  --accent-color: #3182ce;
  --light-bg: #f7fafc;
  --text-color: #2d3748;
  --text-light: #718096;
  --white: #ffffff;
  --border-color: #e2e8f0;
  --polytechnique-blue: #003366;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--white);
}

/* Container */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ==================== */
/* NEW HEADER STYLING   */
/* ==================== */

header {
  background-color: var(--white);
  border-bottom: 1px solid var(--border-color);
}

/* Header Brand Row - Logo + Lab Name */
.header-brand {
  padding: 20px 0;
  border-bottom: 1px solid var(--border-color);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.institution-logo {
  height: 55px;
  width: auto;
}

.lab-title {
  display: flex;
  flex-direction: column;
}

.lab-name {
  font-family: 'Georgia', 'Times New Roman', serif;
  font-size: 1.75rem;
  font-weight: normal;
  color: var(--primary-color);
  letter-spacing: -0.5px;
}

.lab-pi {
  font-size: 0.8rem;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 1px;
  text-decoration: none;
  transition: color 0.2s ease;
  margin-top: -2px;
}

.lab-pi:hover {
  color: var(--accent-color);
}

.lang-switch {
  display: flex;
  gap: 8px;
}

.lang-switch button {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-color);
  padding: 5px 12px;
  cursor: pointer;
  font-size: 0.85rem;
  border-radius: 3px;
  transition: all 0.2s ease;
}

.lang-switch button:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.lang-switch button.active {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: var(--white);
}

/* Navigation Row */
.main-nav {
  padding: 0;
  background-color: var(--white);
}

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

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 0;
}

.main-nav ul li a {
  display: block;
  text-decoration: none;
  color: var(--text-color);
  padding: 15px 20px;
  font-size: 0.95rem;
  font-weight: 400;
  transition: color 0.2s ease;
  border-bottom: 2px solid transparent;
}

.main-nav ul li a:hover {
  color: var(--accent-color);
}

.main-nav ul li a.active {
  color: var(--accent-color);
  border-bottom-color: var(--accent-color);
}

.main-nav ul li.dropdown {
  position: relative;
}

.main-nav ul li.dropdown:hover .dropdown-menu {
  display: block;
}

.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--white);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--border-color);
  min-width: 220px;
  z-index: 1000;
}

.dropdown-menu a {
  display: block;
  padding: 12px 20px;
  color: var(--text-color);
  text-decoration: none;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--border-color);
  transition: background-color 0.2s ease;
}

.dropdown-menu a:last-child {
  border-bottom: none;
}

.dropdown-menu a:hover {
  background-color: var(--light-bg);
  color: var(--accent-color);
}

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--primary-color);
  padding: 10px;
}

/* ==================== */
/* HERO SECTION MINIMAL */
/* ==================== */

.hero-minimal {
  padding: 40px 0 20px;
  background-color: var(--white);
}

.hero-figure {
  max-width: 800px;
  margin: 0 auto;
}

.placeholder-figure {
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.placeholder-figure img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
}

/* ==================== */
/* RESEARCH AREAS MINIMAL */
/* ==================== */

.research-areas-minimal {
  padding: 20px 0 60px;
  background-color: var(--white);
}

.research-section-title {
  font-family: 'Georgia', 'Times New Roman', serif;
  font-size: 1.3rem;
  font-weight: normal;
  color: var(--primary-color);
  margin-bottom: 25px;
}

.research-grid-minimal {
  display: flex;
  justify-content: center;
  gap: 60px;
}

.research-card-minimal {
  text-decoration: none;
  text-align: center;
  padding: 20px 30px;
  transition: all 0.2s ease;
}

.research-card-minimal h3 {
  font-family: 'Georgia', 'Times New Roman', serif;
  font-size: 1.2rem;
  font-weight: normal;
  color: var(--primary-color);
  border-bottom: 1px solid transparent;
  padding-bottom: 5px;
  transition: all 0.2s ease;
}

.research-card-minimal:hover h3 {
  color: var(--accent-color);
  border-bottom-color: var(--accent-color);
}

/* Research Card Boxes with Placeholder */
.research-card-box {
  display: block;
  text-decoration: none;
  text-align: center;
  padding: 25px;
  background-color: var(--white);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  transition: all 0.2s ease;
  min-width: 220px;
}

.research-card-box:hover {
  border-color: var(--accent-color);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.research-card-box h3 {
  font-family: 'Georgia', 'Times New Roman', serif;
  font-size: 1.1rem;
  font-weight: normal;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.research-card-box:hover h3 {
  color: var(--accent-color);
}

.research-card-box .card-placeholder {
  height: 120px;
  background-color: var(--light-bg);
  border: 1px dashed var(--border-color);
  border-radius: 4px;
}

.research-card-box .card-icon {
  font-size: 3rem;
  margin-bottom: 5px;
  display: block;
}

/* ==================== */
/* LEGACY STYLES        */
/* ==================== */

/* Hero Section (for other pages) */
.hero {
  background: linear-gradient(135deg, var(--polytechnique-blue) 0%, var(--secondary-color) 100%);
  color: var(--white);
  padding: 80px 0;
  text-align: center;
}

.hero h2 {
  font-size: 2.5rem;
  margin-bottom: 20px;
}

.hero p {
  font-size: 1.2rem;
  max-width: 700px;
  margin: 0 auto 40px;
  opacity: 0.9;
}

.hero-image {
  max-width: 800px;
  margin: 0 auto;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 40px;
  backdrop-filter: blur(10px);
}

.hero-image img {
  max-width: 100%;
  border-radius: 5px;
}

/* Research Areas (legacy) */
.research-areas {
  padding: 80px 0;
  background-color: var(--light-bg);
}

.section-title {
  text-align: center;
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 50px;
}

.research-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.research-card {
  background-color: var(--white);
  border-radius: 10px;
  padding: 40px 30px;
  text-align: center;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-decoration: none;
  color: inherit;
  display: block;
}

.research-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.research-card .icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--accent-color), var(--secondary-color));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 2rem;
}

.research-card h3 {
  font-size: 1.4rem;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.research-card p {
  color: var(--text-light);
  font-size: 0.95rem;
}

/* Page Content */
.page-header {
  background: linear-gradient(135deg, var(--polytechnique-blue) 0%, var(--secondary-color) 100%);
  color: var(--white);
  padding: 60px 0;
  text-align: center;
}

.page-header h2 {
  font-size: 2.5rem;
  margin-bottom: 10px;
}

.page-header p {
  font-size: 1.1rem;
  opacity: 0.9;
}

.page-content {
  padding: 60px 0;
}

/* Simple Page Title (no banner) */
.page-title {
  padding: 40px 0 30px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 40px;
}

.page-title h1 {
  font-family: 'Georgia', 'Times New Roman', serif;
  font-size: 2rem;
  font-weight: normal;
  color: var(--primary-color);
  margin: 0;
}

.page-content-simple {
  padding: 0 0 60px;
}

/* Publications */
.publication-list {
  max-width: 1000px;
  margin: 0 auto;
}

/* Two-column publication layout */
.publication-columns-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 10px;
  padding-bottom: 15px;
  border-bottom: 2px solid var(--accent-color);
}

.publication-columns-header h3 {
  font-family: 'Georgia', 'Times New Roman', serif;
  font-size: 1.1rem;
  font-weight: normal;
  color: var(--primary-color);
  margin: 0;
}

.publication-year-row {
  margin-top: 35px;
}

.publication-year-row > h3 {
  font-size: 1.4rem;
  color: var(--primary-color);
  margin-bottom: 20px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}

.publication-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.publication-column {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.publication-column .publication-item {
  padding: 15px 0;
  border-bottom: 1px solid var(--border-color);
}

.publication-column .publication-item:last-child {
  border-bottom: none;
}

.publication-spanning {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px dashed var(--border-color);
}

.publication-spanning .publication-item {
  padding: 15px 0;
  text-align: center;
}

.publication-spanning .publication-item h4 {
  color: var(--secondary-color);
}

.publication-graphical-abstract {
  margin-top: 15px;
  text-align: center;
}

.publication-graphical-abstract img {
  max-width: 100%;
  width: 400px;
  height: auto;
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

@media (max-width: 768px) {
  .publication-columns-header,
  .publication-columns {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .publication-columns-header h3:last-child {
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
  }
}

.publication-year {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin: 40px 0 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--accent-color);
}

.publication-item {
  padding: 20px 0;
  border-bottom: 1px solid var(--border-color);
}

.publication-item:last-child {
  border-bottom: none;
}

.publication-item h4 {
  color: var(--primary-color);
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.publication-item h4 a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.2s ease;
}

.publication-item h4 a:hover {
  color: var(--accent-color);
  text-decoration: underline;
}

.publication-item .authors {
  color: var(--text-light);
  font-size: 0.95rem;
  margin-bottom: 5px;
}

.publication-item .journal {
  font-style: italic;
  color: var(--text-color);
  font-size: 0.9rem;
}

.publication-item .links {
  margin-top: 10px;
}

.publication-item .links a {
  color: var(--accent-color);
  text-decoration: none;
  margin-right: 15px;
  font-size: 0.9rem;
}

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

/* People Page Navigation */
.people-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 25px;
  margin-bottom: 40px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}

.people-nav a {
  color: var(--text-color);
  text-decoration: none;
  font-size: 0.95rem;
  padding: 5px 0;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
}

.people-nav a:hover {
  color: var(--accent-color);
  border-bottom-color: var(--accent-color);
}

/* People - Horizontal Layout */
.people-section {
  margin-bottom: 50px;
}

.people-section h3 {
  font-family: 'Georgia', 'Times New Roman', serif;
  font-size: 1.4rem;
  font-weight: normal;
  color: var(--primary-color);
  margin-bottom: 25px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
}

.people-list {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.person-row {
  display: flex;
  gap: 25px;
  align-items: flex-start;
}

.person-row .photo {
  width: 120px;
  height: 120px;
  min-width: 120px;
  background-color: var(--light-bg);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: var(--text-light);
  overflow: hidden;
}

.person-row .photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.person-row .info {
  flex: 1;
}

.person-row .info h4 {
  color: var(--primary-color);
  margin-bottom: 4px;
  font-size: 1.1rem;
}

.person-row .info .role {
  color: var(--accent-color);
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.person-row .info .bio {
  color: var(--text-color);
  font-size: 0.9rem;
  line-height: 1.6;
}

.person-row .info .links {
  margin-top: 8px;
}

.person-row .info .links a {
  color: var(--accent-color);
  text-decoration: none;
  margin-right: 15px;
  font-size: 0.85rem;
}

.person-row .info .links a:hover {
  text-decoration: underline;
}

/* Compact Alumni List */
.alumni-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.alumni-list p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-color);
}

.alumni-list p strong {
  color: var(--primary-color);
}

/* Photo Gallery */
.photo-gallery {
  margin-top: 20px;
}

.gallery-main {
  width: 100%;
  max-width: 600px;
  margin: 0 auto 20px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.gallery-main img {
  width: 100%;
  height: auto;
  display: block;
}

.gallery-thumbnails {
  display: flex;
  justify-content: center;
  gap: 15px;
  flex-wrap: wrap;
}

.gallery-thumb {
  width: 120px;
  height: 80px;
  border-radius: 4px;
  overflow: hidden;
  cursor: pointer;
  opacity: 0.6;
  transition: all 0.2s ease;
  border: 2px solid transparent;
}

.gallery-thumb:hover,
.gallery-thumb.active {
  opacity: 1;
  border-color: var(--accent-color);
}

.gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Legacy card styles */
.people-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 30px;
}

.person-card {
  background-color: var(--white);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.person-card .photo {
  width: 100%;
  height: 250px;
  background-color: var(--light-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  color: var(--text-light);
}

.person-card .photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.person-card .info {
  padding: 20px;
}

.person-card h4 {
  color: var(--primary-color);
  margin-bottom: 5px;
}

.person-card .role {
  color: var(--accent-color);
  font-size: 0.9rem;
  margin-bottom: 10px;
}

.person-card .bio {
  color: var(--text-light);
  font-size: 0.85rem;
}

.person-card .links {
  margin-top: 15px;
}

.person-card .links a {
  color: var(--text-light);
  margin: 0 8px;
  font-size: 1.2rem;
  transition: color 0.3s ease;
}

.person-card .links a:hover {
  color: var(--accent-color);
}

/* PI Card - larger for principal investigator */
.pi-card {
  max-width: 400px;
  margin: 0 auto 40px;
}

/* Positions */
.positions-list {
  max-width: 800px;
  margin: 0 auto;
}

.position-item {
  background-color: var(--white);
  border-radius: 10px;
  padding: 30px;
  margin-bottom: 20px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.position-item h3 {
  color: var(--primary-color);
  margin-bottom: 10px;
}

.position-item .type {
  display: inline-block;
  background-color: var(--accent-color);
  color: var(--white);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.85rem;
  margin-bottom: 15px;
}

.position-item p {
  color: var(--text-color);
  margin-bottom: 15px;
}

.position-item ul {
  margin-left: 20px;
  margin-bottom: 15px;
  color: var(--text-light);
}

.position-item .apply-btn {
  display: inline-block;
  background-color: var(--polytechnique-blue);
  color: var(--white);
  padding: 10px 25px;
  border-radius: 5px;
  text-decoration: none;
  transition: background-color 0.3s ease;
}

.position-item .apply-btn:hover {
  background-color: var(--secondary-color);
}

/* Twin Positions Layout */
.positions-twin {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  max-width: 1000px;
  margin: 0 auto 40px;
}

.positions-twin .position-item {
  margin-bottom: 0;
}

.funding-info {
  background-color: #f0f7ff;
  padding: 12px 15px;
  border-radius: 6px;
  margin-bottom: 15px;
  font-size: 0.95rem;
}

.funding-info a {
  color: var(--accent-color);
  text-decoration: none;
  font-weight: 500;
}

.funding-info a:hover {
  text-decoration: underline;
}

/* Life in Montréal Section */
.montreal-section {
  margin-top: 50px;
  padding-top: 40px;
  border-top: 1px solid var(--border-color);
}

.montreal-section h2 {
  font-family: 'Georgia', 'Times New Roman', serif;
  font-size: 1.5rem;
  font-weight: normal;
  color: var(--primary-color);
  margin-bottom: 20px;
}

.montreal-section ul {
  margin-left: 20px;
  margin-bottom: 30px;
  color: var(--text-color);
  line-height: 1.8;
}

.montreal-section li {
  margin-bottom: 8px;
}

.montreal-image {
  width: 100%;
  border-radius: 10px;
  overflow: hidden;
}

.montreal-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* Contact */
.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  max-width: 1000px;
  margin: 0 auto;
}

.contact-info h3 {
  color: var(--primary-color);
  margin-bottom: 20px;
}

.contact-info p {
  margin-bottom: 15px;
  color: var(--text-color);
}

.contact-info .address {
  background-color: var(--light-bg);
  padding: 20px;
  border-radius: 10px;
  margin-bottom: 20px;
}

.contact-info .email a {
  color: var(--accent-color);
  text-decoration: none;
}

.contact-info .email a:hover {
  text-decoration: underline;
}

.contact-map {
  border-radius: 10px;
  overflow: hidden;
}

.contact-map iframe {
  display: block;
}

/* Full-width institution image */
.institution-image {
  margin-top: 40px;
  width: 100%;
  border-radius: 10px;
  overflow: hidden;
}

.institution-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* Research Detail Pages */
.research-detail {
  max-width: 900px;
  margin: 0 auto;
}

.research-detail h3 {
  color: var(--primary-color);
  margin: 30px 0 15px;
  font-size: 1.5rem;
}

.research-detail p {
  margin-bottom: 20px;
  line-height: 1.8;
}

.research-detail ul {
  margin-left: 25px;
  margin-bottom: 20px;
}

.research-detail li {
  margin-bottom: 10px;
}

/* Media Feature (TV appearance, etc.) */
.media-feature {
  background-color: #f7fafc;
  border-radius: 10px;
  padding: 25px;
  margin: 30px 0;
  text-align: center;
}

.media-feature p {
  margin-bottom: 20px;
  font-style: italic;
}

.media-image-link {
  display: inline-block;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.media-image-link:hover {
  transform: scale(1.02);
}

.media-image-link img {
  max-width: 100%;
  width: 800px;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.research-figure {
  background-color: var(--light-bg);
  border-radius: 10px;
  padding: 30px;
  margin: 30px 0;
  text-align: center;
}

.research-figure img {
  max-width: 100%;
  height: auto;
  border-radius: 5px;
}

.research-figure .placeholder {
  height: 250px;
  background: linear-gradient(135deg, var(--border-color) 0%, var(--light-bg) 100%);
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  border: 2px dashed var(--border-color);
}

.research-figure figcaption {
  margin-top: 15px;
  color: var(--text-light);
  font-size: 0.9rem;
  font-style: italic;
}

/* Footer */
footer {
  background-color: var(--primary-color);
  color: var(--white);
  padding: 30px 0 20px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 20px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--white);
  text-decoration: underline;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 30px;
}

.footer-section h4 {
  margin-bottom: 15px;
  font-size: 1.1rem;
}

.footer-section p,
.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
  line-height: 1.8;
}

.footer-section a {
  text-decoration: none;
  display: block;
}

.footer-section a:hover {
  color: var(--white);
}

.footer-bottom {
  text-align: left;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 0.85rem;
  opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 992px) {
  .research-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .research-grid-minimal {
    gap: 30px;
  }

  .footer-content {
    grid-template-columns: 1fr 1fr;
  }

  .contact-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: block;
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
  }

  .main-nav .container {
    position: relative;
  }

  .main-nav ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--white);
    flex-direction: column;
    padding: 10px 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color);
    z-index: 1000;
  }

  .main-nav ul.active {
    display: flex;
  }

  .main-nav ul li a {
    padding: 12px 20px;
    border-bottom: none;
  }

  .main-nav ul li.dropdown .dropdown-menu {
    position: static;
    box-shadow: none;
    border: none;
    padding-left: 20px;
  }

  .research-grid-minimal {
    flex-direction: column;
    align-items: center;
    gap: 20px;
  }

  .hero-minimal {
    padding: 40px 0;
  }

  .placeholder-figure {
    height: 280px;
  }

  .hero h2 {
    font-size: 2rem;
  }

  .research-grid {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
  }

  .people-grid {
    grid-template-columns: 1fr;
  }

  .lab-name {
    font-size: 1.4rem;
  }

  .positions-twin {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .header-brand .container {
    flex-direction: column;
    gap: 15px;
    text-align: center;
  }

  .logo {
    flex-direction: column;
    gap: 10px;
  }

  .hero {
    padding: 50px 0;
  }

  .hero h2 {
    font-size: 1.6rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .lab-name {
    font-size: 1.3rem;
  }
}

/* ==================== */
/* PONG GAME            */
/* ==================== */
.pong-container {
  text-align: center;
  margin: 20px 0 40px;
}

.pong-container canvas {
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  max-width: 100%;
  height: auto;
}

.pong-instructions {
  margin-top: 10px;
  color: var(--text-light);
  font-size: 0.85rem;
  font-style: italic;
}

@media (max-width: 640px) {
  .pong-container canvas {
    width: 100%;
    height: 150px;
  }
}