/* Default (Light Mode) styles */
body {
    font-family: Arial, sans-serif;
    background-color: #f8f9fa;
    color: #212529;
    margin: 0;
    padding: 0;
  }
  
  /* Headings */
  h1, h2 {
    color: #343a40;
  }
  
  /* Navbar Branding & Links */
  .navbar-brand,
  .nav-link {
    font-weight: bold;
  }
  
  /* Containers & Spacing */
  .container {
    margin-top: 20px;
    padding: 0 15px;
  }
  
  /* List Groups (for news items, etc.) */
  .list-group-item {
    background-color: #e9ecef;
    color: #212529;
  }
  
  /* -------------------------- */
  /* Dark Mode Overrides */
  .dark-mode {
    background-color: #212529;
    color: #f8f9fa;
  }
  
  /* Dark mode adjustments for container elements */
  .dark-mode .container,
  .dark-mode p,
  .dark-mode li,
  .dark-mode h1,
  .dark-mode h2 {
    color: #f8f9fa;
  }
  
  /* Adjust navbar for dark mode */
  .dark-mode .navbar {
    background-color: #000;
  }
  
  /* Adjust list group items in dark mode */
  .dark-mode .list-group-item {
    background-color: #343a40;
    color: #f8f9fa;
    border-color: #495057;
  }
  
  /* Link styling in dark mode (optional) */
  .dark-mode a {
    color: #9ecfff;
  }
  
  /* Additional spacing for sections */
  section {
    padding-top: 5rem;
    padding-bottom: 5rem;
  }
  

  /* LIGHT MODE (Default) styling for list-group items */
.list-group-item {
    background-color: #fff;       /* White background */
    color: #212529;              /* Dark text */
    border: 1px solid #000;      /* Black outline */
  }
  
  /* DARK MODE overrides for list-group items */
  .dark-mode .list-group-item {
    background-color: #343a40;   /* Dark background */
    color: #f8f9fa;              /* Light text */
    border-color: #495057;       /* Slightly lighter dark border */
  }
  
  /* LIGHT MODE styling for card bodies (collapsible abstracts) */
  .card.card-body {
    background-color: #fff;      /* White background */
    color: #212529;              /* Dark text */
    border: 1px solid #000;      /* Black outline */
  }
  
  .dark-mode .card.card-body {
    background-color: #343a40 !important;
    color: #f8f9fa !important;
    border-color: #495057 !important;
  }