:root {
  --text-primary: #202124;
  --text-secondary: #5f6368;
  --link-color: #0b57d0;
  --link-hover: #0842a0;
  --border-color: #dadce0;
  --light-background: #f8f9fa;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html,
body {
  min-height: 100%;
}

body {
  display: flex;
  flex-direction: column;
  margin: 0;
  background: #ffffff;
  color: var(--text-primary);
  font-family: "Roboto", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--link-color);
  font-weight: 500;
  text-decoration: none;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--link-hover);
  text-decoration: underline;
}

/* Accessibility */

.skip-link {
  position: absolute;
  top: -60px;
  left: 16px;
  z-index: 2000;
  padding: 10px 14px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-weight: 600;
}

.skip-link:focus {
  top: 12px;
}

/* Navigation */

.navbar {
  min-height: 68px;
  padding: 0;
  background: #ffffff;
  border-bottom: 1px solid var(--border-color);
}

.navbar-container {
  width: min(1440px, calc(100% - 48px));
  min-height: 68px;
  margin: 0 auto;
}

.navbar-brand {
  margin-right: 30px;
  color: var(--text-primary);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.3;
  white-space: nowrap;
}

.navbar-brand:hover,
.navbar-brand:focus {
  color: var(--text-primary);
  text-decoration: none;
}

.navbar-nav {
  gap: 18px;
  margin-left: auto;
  padding-left: 0;
  list-style: none;
}

.navbar-nav .nav-item {
  margin: 0;
}

.navbar-nav .nav-link {
  position: relative;
  padding: 23px 2px 20px !important;
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.4;
}

.navbar-nav .nav-link::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 2px;
  background: transparent;
  content: "";
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus {
  color: var(--text-primary);
  text-decoration: none;
}

.navbar-nav .nav-link.active {
  color: var(--link-color);
  font-weight: 600;
}

.navbar-nav .nav-link.active::after {
  background: var(--link-color);
}

.navbar-toggler {
  padding: 8px;
  border: 0;
  box-shadow: none !important;
}

.navbar-toggler-icon {
  width: 24px;
  height: 24px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Cpath fill='none' stroke='%235f6368' stroke-linecap='round' stroke-width='2' d='M4 7h16M4 12h16M4 17h16'/%3E%3C/svg%3E");
}

/* Main layout */

main {
  flex: 1;
  width: 100%;
}

/*
  Change 48px to 32px for even smaller side margins.
*/
.page-container {
  width: min(1360px, calc(100% - 120px));
  margin: 38px auto 60px;
}

/* Page header */

.page-header {
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-color);
}

.page-header-with-action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.page-title {
  margin: 0;
  color: var(--text-primary);
  font-size: clamp(31px, 4vw, 43px);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.resume-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  flex-shrink: 0;
  padding: 9px 0;
  border-bottom: 1px solid var(--link-color);
  color: var(--link-color);
  font-size: 15px;
  font-weight: 600;
}

.resume-link:hover {
  color: var(--link-hover);
  border-bottom-color: var(--link-hover);
  text-decoration: none;
}

.resume-link svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* General sections */

.content-section {
  padding: 34px 0;
  border-bottom: 1px solid var(--border-color);
}

.content-section:last-child {
  border-bottom: 0;
}

.section-heading {
  margin: 0 0 22px;
  color: var(--text-primary);
  font-size: 24px;
  font-weight: 600;
  line-height: 1.35;
}

/* Homepage biography */

.bio-layout {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 34px;
  align-items: start;
}

.profile-image {
  display: block;
  width: 180px;
  height: auto;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.bio-content {
  max-width: none;
  width: 100%;
}

.bio-content h2 {
  margin: 0 0 10px;
  color: var(--text-primary);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.35;
}

.bio-content p {
  margin: 0;
}

/* Experience and education */

.timeline-list {
  display: grid;
  gap: 28px;
}

.timeline-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 5px;
}

.institution-name {
  margin: 0;
  color: var(--text-primary);
  font-size: 19px;
  font-weight: 600;
  line-height: 1.45;
}

.experience-date {
  flex-shrink: 0;
  color: var(--text-secondary);
  font-size: 14px;
  white-space: nowrap;
}

.position-title {
  display: block;
  margin: 0 0 8px;
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.45;
}

.timeline-item p {
  margin: 0 0 4px;
}

/* Standard lists */

.professional-links,
.activity-list,
.experience-list,
.social-list {
  margin: 0;
  padding-left: 22px;
}

.professional-links li,
.activity-list li,
.experience-list li,
.social-list li {
  margin-bottom: 8px;
  padding-left: 4px;
}

.professional-links li:last-child,
.activity-list li:last-child,
.experience-list li:last-child,
.social-list li:last-child {
  margin-bottom: 0;
}

/* Publications */

.publication-list {
  display: grid;
  gap: 32px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.publication-item {
  margin: 0;
}

.publication-title {
  display: block;
  margin-bottom: 3px;
  color: var(--text-primary);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.45;
}

.publication-authors {
  display: block;
  margin-bottom: 3px;
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.55;
}

.publication-journal {
  display: block;
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.55;
}

.publication-journal a {
  font-weight: 500;
}

/* Contact */

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 56px;
  padding: 34px 0;
}

.contact-name {
  margin: 0 0 24px;
  font-size: 18px;
  font-weight: 600;
}

.contact-detail {
  margin: 0 0 24px;
}

.contact-label {
  display: block;
  margin-bottom: 4px;
  font-weight: 600;
}

.email-link {
  display: block;
  width: fit-content;
  overflow-wrap: anywhere;
}

/* Videos */

.video-grid {
    display: grid;
    grid-template-columns: repeat(2, auto);
    justify-content: center;
    column-gap: 20px;
    row-gap: 24px;
}

.research-video {
  display: block;
  width: 100%;
  height: auto;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

/* Footer */

footer {
  margin-top: auto;
  padding: 24px 20px;
  background: #ffffff;
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
  text-align: center;
}

footer p {
  margin: 0;
  font-size: 13px;
}

/* Responsive layout */

@media (max-width: 1199.98px) {
  .navbar-container,
  .page-container {
    width: calc(100% - 40px);
  }

  .navbar-nav {
    gap: 12px;
  }
}

@media (max-width: 991.98px) {
  .navbar-container {
    min-height: 64px;
  }

  .navbar-collapse {
    width: 100%;
    padding: 10px 0 16px;
    border-top: 1px solid var(--border-color);
  }

  .navbar-nav {
    gap: 0;
  }

  .navbar-nav .nav-link {
    padding: 10px 2px !important;
  }

  .navbar-nav .nav-link::after {
    right: auto;
    bottom: 4px;
    width: 34px;
  }
}

@media (max-width: 767.98px) {
  .navbar-container,
  .page-container {
    width: calc(100% - 28px);
  }

  .page-container {
    margin-top: 28px;
    margin-bottom: 42px;
  }

  .page-header-with-action {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .bio-layout,
  .contact-grid,
  .video-grid {
    grid-template-columns: 1fr;
  }

  .bio-layout {
    gap: 22px;
  }

  .contact-grid {
    gap: 36px;
    padding: 28px 0;
  }

  .timeline-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 3px;
  }

  .experience-date {
    white-space: normal;
  }
}

@media (max-width: 480px) {
  .navbar-brand {
    max-width: 220px;
    overflow: hidden;
    font-size: 15px;
    text-overflow: ellipsis;
  }

  .page-title {
    font-size: 30px;
  }

  .section-heading {
    font-size: 22px;
  }

  .institution-name {
    font-size: 18px;
  }
}
/* ==================================================
   Research page
================================================== */

.research-list {
  margin: 0;
  padding: 0;
}

.research-entry {
  padding: 34px 0;
  border-bottom: 1px solid var(--border-color);
}

.research-entry:last-child {
  border-bottom: 0;
}

.publication-text {
  margin: 0;
  padding-left: 22px;
  color: var(--text-primary);
  font-size: 16px;
}

.publication-text li {
  padding-left: 4px;
}

.publication-text strong {
  font-weight: 700;
}

.video-section {
  margin-top: 28px;
}

.video-section-title {
  margin: 0 0 24px;
  color: var(--text-primary);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.3;
  text-align: center;
}

.video-item {
  text-align: center;
}

.research-video {
  display: block;
  width: 100%;
  max-width: 400px;
  height: auto;
  margin: 0 auto;
  background: #000000;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.video-caption {
  margin: 12px 0 0;
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 400;
}

.video-caption strong {
  font-weight: 600;
}

@media (max-width: 767.98px) {
  .research-entry {
    padding: 28px 0;
  }

  .video-section-title {
    font-size: 20px;
  }
}

@media (max-width: 480px) {
  .publication-text {
    padding-left: 20px;
  }
}
/* ==================================================
   Publications page
================================================== */

.publication-section {
  padding: 30px 0;
  border-bottom: 1px solid var(--border-color);
}

.publication-section:last-child {
  border-bottom: 0;
}

.status-heading {
  margin: 0 0 24px;
  color: var(--text-primary);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.3;
}

/* Ordered publication list */
ol.publication-list {
  margin: 0;
  padding-left: 2.25rem;
  list-style-type: decimal;
  list-style-position: outside;
}

/* Hidden placeholder lists */
ul.publication-list {
  margin: 0;
  padding-left: 0;
  list-style: none;
}

.publication-item {
  display: list-item;
  padding: 0 0 28px 6px;
}

.publication-item:last-child {
  padding-bottom: 0;
}

ol.publication-list .publication-item::marker {
  color: var(--text-secondary);
  font-size: 16px;
  font-weight: 600;
}

.publication-title {
  display: block;
  margin-bottom: 5px;
  color: var(--text-primary);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
}

.publication-authors {
  display: block;
  margin-bottom: 4px;
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.6;
}

.publication-authors strong {
  color: var(--text-primary);
  font-weight: 600;
}

.publication-journal {
  display: block;
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.6;
}

.publication-journal a {
  font-weight: 500;
}

.media-coverage {
  margin-top: 12px;
  padding-left: 0;
  color: var(--text-secondary);
  font-size: 15px;
}

.media-coverage-title {
  display: inline;
  color: var(--text-primary);
  font-weight: 600;
}

.media-links {
  display: inline;
}

.media-links a {
  font-weight: 500;
}

@media (max-width: 767.98px) {
  .publication-section {
    padding: 26px 0;
  }

  .status-heading {
    font-size: 20px;
  }

  .publication-title {
    font-size: 16px;
  }

  ol.publication-list {
    padding-left: 1.75rem;
  }

  .publication-item {
    padding-left: 3px;
  }
}
/* ==================================================
   Experience page
================================================== */

.experience-section {
  padding: 30px 0;
  border-bottom: 1px solid var(--border-color);
}

.experience-section:last-child {
  border-bottom: 0;
}

.institution-name {
  margin: 0 0 24px;
  color: var(--text-primary);
  font-size: 21px;
  font-weight: 600;
  line-height: 1.4;
}

.experience-role {
  margin-bottom: 36px;
}

.experience-role:last-child {
  margin-bottom: 0;
}

.position-title {
  margin: 0 0 10px;
  color: var(--text-primary);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.45;
}

.experience-description {
  max-width: 960px;
  margin: 0 0 14px;
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.7;
}

.experience-list {
  margin: 0;
  padding-left: 1.4rem;
}

.experience-list li {
  margin-bottom: 6px;
  padding-left: 4px;
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.65;
}

.experience-list li:last-child {
  margin-bottom: 0;
}

.experience-list li::marker {
  color: var(--text-secondary);
}

.experience-list cite {
  font-style: italic;
}

@media (max-width: 767.98px) {
  .experience-section {
    padding: 26px 0;
  }

  .institution-name {
    margin-bottom: 20px;
    font-size: 19px;
  }

  .experience-role {
    margin-bottom: 28px;
  }

  .experience-role:last-child {
    margin-bottom: 0;
  }

  .position-title {
    font-size: 16px;
  }

  .experience-description,
  .experience-list li {
    font-size: 15.5px;
  }
}

@media (max-width: 480px) {
  .institution-name {
    font-size: 18px;
  }

  .experience-list {
    padding-left: 1.25rem;
  }
}
/* ==================================================
   Talks, Teaching and Outreach page
================================================== */

.activity-section {
  padding: 30px 0;
  border-bottom: 1px solid var(--border-color);
}

.activity-section:last-child {
  border-bottom: 0;
}

.section-heading {
  margin: 0 0 22px;
  color: var(--text-primary);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.4;
}

.activity-list {
  margin: 0;
  padding-left: 1.4rem;
}

.activity-list li {
  margin: 0 0 4px;
  padding-left: 4px;
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.7;
}

.activity-list li:last-child {
  margin-bottom: 0;
}

.activity-list li::marker {
  color: var(--text-secondary);
}

.activity-list time {
  color: var(--text-secondary);
  font-weight: 500;
}

.activity-list q {
  font-style: normal;
}

.activity-list q::before {
  content: "“";
}

.activity-list q::after {
  content: "”";
}

.activity-list em {
  font-style: italic;
}

/* ==================================================
   Mobile
================================================== */

@media (max-width: 767.98px) {

  .activity-section {
    padding: 26px 0;
  }

  .section-heading {
    margin-bottom: 18px;
    font-size: 20px;
  }

  .activity-list {
    padding-left: 1.25rem;
  }

  .activity-list li {
    margin-bottom: 4px;
    font-size: 15.5px;
    line-height: 1.65;
  }

}

@media (max-width: 480px) {

  .activity-list li {
    font-size: 15px;
  }

}
/* ==================================================
   Contact page
================================================== */

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 64px;
  padding: 30px 0;
}

.contact-section {
  min-width: 0;
}

.contact-details {
  margin: 0;
}

.contact-detail {
  margin: 0 0 22px;
}

.contact-detail:last-child {
  margin-bottom: 0;
}

.contact-detail dt {
  margin: 0 0 3px;
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 600;
}

.contact-detail dd {
  margin: 0;
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.7;
}

.contact-detail dd a {
  display: block;
  width: fit-content;
  overflow-wrap: anywhere;
}

.contact-detail address {
  margin: 0;
  font-style: normal;
}

.social-list {
  margin: 0;
  padding-left: 1.4rem;
}

.social-list li {
  margin: 0 0 4px;
  padding-left: 4px;
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.7;
}

.social-list li:last-child {
  margin-bottom: 0;
}

.social-list li::marker {
  color: var(--text-secondary);
}

/* ==================================================
   Contact page responsive styles
================================================== */

@media (max-width: 767.98px) {

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 34px;
    padding: 26px 0;
  }

  .contact-detail {
    margin-bottom: 18px;
  }

  .contact-detail dt,
  .contact-detail dd,
  .social-list li {
    font-size: 15.5px;
  }

}

@media (max-width: 480px) {

  .social-list {
    padding-left: 1.25rem;
  }

  .contact-detail dt,
  .contact-detail dd,
  .social-list li {
    font-size: 15px;
  }

}