body {
    font-family: sans-serif;
    margin: 0;
    padding: 0;
    background: #f4f4f4;
    color: #222;
    text-align: justify;
  }
  
  .container {
    max-width: 900px;
    margin: auto;
    padding: 20px;
    background: #fff;
  }
  
  header {
    text-align: center;
    margin-bottom: 30px;
  }
  
  header h1 {
    font-size: 2.2em;
    margin-bottom: 0.2em;
  }
  
  header .authors {
    font-size: 1.1em;
    color: #666;
  }
  
  header .conference {
    font-size: 1em;
    font-style: italic;
    color: #888;
  }
  
  .links {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin: 20px 0;
    flex-wrap: wrap;
  }
  
  .links a {
    padding: 10px 15px;
    background: #1e90ff;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: background 0.2s;
  }
  
  .links a:hover {
    background: #0066cc;
  }
  
  /* .teaser img,
  .images img { */
  .teaser img {
    width: 100%;
    border-radius: 8px;
    /* margin: 10px 0; */
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.8);
  }
  
  .abstract {
    margin: 30px 0;
  }
  
  .abstract h2,
  .images h2 {
    margin-bottom: 10px;
    border-bottom: 2px solid #ddd;
    padding-bottom: 5px;
  }
  
  footer {
    text-align: center;
    margin-top: 40px;
    font-size: 0.9em;
    color: #888;
  }
  
  .author-block {
    margin-bottom: 20px;
  }
  
  .author-name {
    font-weight: bold;
    font-size: 1.1em;
    display: flex;
    align-items: center;
    gap: 8px;
  }
  
  .author-affiliation,
  .author-email {
    font-size: 0.95em;
    color: #555;
  }
  
  .card {
    background-color: white;
    border-radius: 6px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    margin: 20px auto;
    /* max-width: 600px; */
    transition: transform 0.2s;
  }
  
  .card:hover {
    transform: translateY(-4px);
  }
  
  .card img {
    width: 100%;
    display: block;
    border-bottom: 1px solid #ddd;
  }
  
  .card-content {
    padding: 16px;
  }
  
  .card-content h3 {
    margin-top: 0;
  }
  
  .card-content p {
    margin-bottom: 0;
    color: #444;
  }
  
    .back-button {
    margin: 20px 0;
    text-align: center;
  }

  .back-button a {
    display: inline-block;
    padding: 8px 16px;
    background-color: #1e90ff;
    color: white;
    border-radius: 6px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.2s;
  }

  .back-button a:hover {
    background-color: #0066cc;
  }

  body.dark-mode .back-button a {
    background-color: #444;
    color: #eee;
  }

  body.dark-mode .back-button a:hover {
    background-color: #666;
  }

  .floating-back-button {
    position: fixed;
    top: 16px;
    left: 16px; /* or right: 16px; for top-right */
    background-color: #111; /* deep black */
    color: #82b1ff; /* your soft blue */
    padding: 8px 14px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: bold;
    z-index: 1000;
    box-shadow: 0 4px 8px rgba(0,0,0,0.4);
    transition: background-color 0.2s ease, color 0.2s ease;
  }

  .floating-back-button:hover {
    background-color: #222;
    color: #a3cfff;
  }