@media (min-width: 901px) {
  .mobile-menu-btn {
    display: none !important;
  }
}
    /* Reset and box-sizing */
    *, *::before, *::after {
      box-sizing: border-box;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      margin: 0;
      padding: 0;
      font-family: 'Segoe UI Bold', 'Segoe UI', 'Segoe UI', 'Segoe UI', sans-serif;
      font-weight: 300;
      font-size: 1rem;
      line-height: 1.6;
      color: #000;
      background: #fff;
      text-align: justify;
    }
    a {
      color: #0000EE;
      text-decoration: none;
    }
    a:hover {
      text-decoration: underline;
    }
    img {
      display: block;
      max-width: 100%;
    }

    /* Haader and navigation bar */
    header {
      position: sticky;
      top: 0;
      background: #fff;
      border-bottom: 0.3125rem solid #750014;
      box-shadow: 0 0.25rem 0.375rem rgba(0, 0, 0, 0.08);
      z-index: 1000;
    }
    .header-inner {
      max-width: 60rem;
      margin: 0 auto;
      padding: 1.25rem 0;
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
    }
    .site-title {
      margin: 0;
      font-family: 'Linux Biolinum Bold', 'Linux Biolinum', 'Linux Biolinum', 'Linux Biolinum', sans-serif;
      font-weight: 700;
      font-size: 1.75rem;
      line-height: 1.1;
      white-space: nowrap;
    }
    .site-subtitle {
      margin: 0.25rem 0 0 0;
      font-family: 'Segoe UI Bold', 'Segoe UI', 'Segoe UI', 'Segoe UI', sans-serif;
      font-weight: 300;
      font-size: 1rem;
      color: #555;
      white-space: nowrap;
    }
    nav ul {
      list-style: none;
      margin: 0;
      padding: 0;
      display: flex;
    }
    nav li {
      margin-left: 0.5rem;
    }
    nav a {
      display: inline-block;
      font-family: 'Segoe UI Bold', 'Segoe UI', 'Segoe UI', 'Segoe UI', sans-serif;
      font-weight: 300;
      font-size: 1rem;
      color: #000;
      padding: 0.375rem 0.625rem;
      border-radius: 62.4375rem;
      transition: background 0.2s ease-in-out;
      white-space: nowrap;
      text-decoration: none;
    }
    nav a:hover {
      background-color: rgba(139, 149, 158, 0.2);
      text-decoration: none;
    }
    nav a.active {
      background-color: rgba(139, 149, 158, 0.2);
      text-decoration: none;
    }

    /* Main containers and typography */
    .container {
      max-width: 56.25rem;
      margin: 0 auto;
      padding: 1.25rem 1.25rem 3.75rem 1.25rem;
    }
    h2 {
      font-family: 'Segoe UI Bold', 'Segoe UI', 'Segoe UI', 'Segoe UI', sans-serif;
      font-weight: 700;
      font-size: 1.75rem;
      margin: 0 0 1rem 0;
    }
    h3 {
      font-family: 'Segoe UI Bold', 'Segoe UI', 'Segoe UI', 'Segoe UI', sans-serif;
      font-weight: 700;
      font-size: 1.25rem;
      margin: 1.5rem 0 0.75rem 0;
    }
    hr {
      max-width: 56.25rem;
      width: 100%;
      margin-left: auto;
      margin-right: auto;
      margin-top: 1.25rem;   
      margin-bottom: 1.25rem;
      border: none;
      border-top: 0.0625rem solid #C7C7C7;
    }

    /* About me */
    .about-section {
      display: flex;
      gap: 2.5rem;
      margin-top: 1.25rem;
      flex-wrap: wrap;
    }
    .about-left {
      flex: 1 1 12.5rem;
      max-width: 15rem;
      text-align: center;
    }
    .profile-image {
      width: 12.5rem;
      height: 12.5rem;
      border-radius: 50%;
      object-fit: cover;
      margin: 0 auto;
      box-shadow: 0 0.25rem 0.75rem rgba(0, 0, 0, 0.1);
    }
    .contact {
      margin-top: 0.625rem;
      font-family: 'Segoe UI Bold', 'Segoe UI', 'Segoe UI', 'Segoe UI', sans-serif;
      font-weight: 300;
      font-size: 1.125rem;
      color: #333;
    }
    .about-right {
      flex: 2 1 25rem;
    }
    .about-right p {
      margin-bottom: 1rem;
    }
    .note {
      font-size: 0.875rem;
      margin-top: 1.875rem;
      font-style: italic;
      color: #333;
    }

    /* Research Interests */
    .research p {
      margin-bottom: 1rem;
    }
    .research strong {
      font-weight: 700;
    }

    /* Publications */
    .publication-group {
      margin-top: 1.25rem;
    }
    .publication-entry {
      display: flex;
      align-items: flex-start;
      gap: 1.25rem;
      margin-bottom: 1.5rem;
      flex-wrap: nowrap;
    }
    .publication-entry img {
      flex-shrink: 0;
      width: 15rem;
      height: 8.75rem;
      object-fit: cover;
      border-radius: 0.5rem;
      box-shadow: 0 0.25rem 0.75rem rgba(0, 0, 0, 0.1);
    }
    .publication-details h4 {
      font-family: 'Segoe UI Bold', 'Segoe UI', 'Segoe UI', 'Segoe UI', sans-serif;
      font-weight: 700;
      font-size: 1.125rem;
      margin: 0 0 0.375rem 0;
      line-height: 1.2;
    }
    .publication-details p {
      margin: 0;
      font-family: 'Segoe UI Bold', 'Segoe UI', 'Segoe UI', 'Segoe UI', sans-serif;
      font-weight: 300;
      font-size: 0.9375rem;
      line-height: 1.4;
    }
    .publication-details p a {
      margin-right: 0.75rem;
      font-size: 0.9375rem;
    }

    /* Press */
    .press-entry {
      display: flex;
      align-items: flex-start;
      gap: 1.25rem;
      margin-bottom: 1.5rem;
      flex-wrap: nowrap;
    }
    .press-entry img {
      flex-shrink: 0;
      width: 15rem;
      height: 8.75rem;
      object-fit: cover;
      border-radius: 0.5rem;
      box-shadow: 0 0.25rem 0.75rem rgba(0, 0, 0, 0.1);
    }
    .press-details a.headline {
      font-family: 'Segoe UI Bold', 'Segoe UI', 'Segoe UI', 'Segoe UI', sans-serif;
      font-weight: 700;
      font-size: 1.125rem;
      line-height: 1.2;
      margin-bottom: 0.375rem;
      display: inline-block;
    }
    .press-details p {
      margin: 0.25rem 0;
      font-family: 'Segoe UI Bold', 'Segoe UI', 'Segoe UI', 'Segoe UI', sans-serif;
      font-size: 0.875rem;
      color: #333;
      line-height: 1.4;
    }
    .press-details a.secondary {
      font-size: 0.875rem;
      margin-top: 0.25rem;
      display: inline-block;
    }

    /* UROP */
    .urop-section p {
      margin-bottom: 1rem;
    }
    .urop-section h3 {
      font-size: 1.25rem;
      margin: 1.5rem 0 0.75rem 0;
    }
    .urop-section a {
      color: #0000EE;
      text-decoration: none;
    }
    .urop-section a:hover {
      text-decoration: underline;
    }
    /* Callout box */
    .callout {
      max-width: 56.25rem;
      margin: 1.875rem auto;
      border: 0.0625rem solid #750014;
      border-radius: 0.375rem;
      overflow: hidden;
    }
    .callout-header {
      background-color: #750014;
      color: white;
      padding: 0.75rem 1rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    .callout-header i {
      font-size: 1.2em;
    }
    .callout-body {
      background: white;
      padding: 1rem;
    }
    .callout-body p {
      margin: 0;
    }
  details summary {
    list-style: none;
    cursor: pointer;
    color: #007bff;
    text-decoration: underline;
  }
  details summary::-webkit-details-marker {
    display: none;
  }
  
/* Mobile */
@media (max-width: 48rem) {
  .publication-entry, .press-entry {
    flex-direction: column;
    align-items: center;
  }
  .publication-entry img, .press-entry img {
    width: 100%;
    height: auto;
  }
}

@media (max-width: 900px) {
  .header-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding: 0.625rem;
  }
  /* Menu button */
  .mobile-menu-btn {
    display: block;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: #750014;
  }
  nav ul {
    display: none;
    flex-direction: column;
    background: #fff;
    position: absolute;
    top: 100%;
    right: 0;
    width: 100%;
    padding: 0.625rem;
    box-shadow: 0 0.25rem 0.375rem rgba(0, 0, 0, 0.1);
    list-style: none;
  }
  nav ul.open {
    display: flex;
  }
  nav ul.open li {
    margin: 0.5rem 0;
  }
}

/* Landscape scaling */
@media (max-width: 900px) and (orientation: landscape) {
  body {
    font-size: 65%;
  } 
}