/* ========== Base Styles ========== */
:root {
    --lumon-white: #12111c;
    --lumon-off-white: #db2020;
    --lumon-teal: #0c5a6a;
    --lumon-light-teal: #a7eaee;
    --lumon-mint: #0c5a6a;
    --lumon-dark: #caeff7;
    --lumon-gray: #a7eaee;
    --lumon-light-gray: #a7eaee;
    --lumon-light-blue: #a7eaee;
    --font-sans: "Helvetica Neue", Arial, sans-serif;
    --corner-radius: 12px;
  }
  /*
  * lumon-white: backgroun of the page,
  * lumon-off-white: 
  * lumon-teal: header and character list color
  * lumon-light-teal: circle around the icon of character list
  * lumon-mint: background of the quote at the top of the page
  * lumon-dark: color of the text in the wuote
  * lumon-gray: color of the text in the footer
  */
  
  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  body {
    margin: 0;
    font-family: var(--font-sans);
    background-color: var(--lumon-white);
    color: var(--lumon-dark);
    line-height: 1.6;
    letter-spacing: 0.02em;
  }
  
  /* ========== Typography ========== */
  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--lumon-light-blue);
    margin: 1.5rem 0 1rem;
  }
  
  h1 {
    font-size: 1.8rem;
    border-bottom: 1px solid var(--lumon-light-teal);
    padding-bottom: 0.5rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  p {
    margin-bottom: 1rem;
  }
  
  a {
    color: var(--lumon-light-blue);
    text-decoration: none;
    transition: color 0.2s ease;
  }
  
  a:hover {
    color: var(--lumon-light-teal);
  }
  
  /* ========== Header Styles ========== */
  header {
    background-color: var(--lumon-teal);
    color: var(--lumon-light-blue);
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  }
  
  .header-title {
    font-size: 1.5rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }
  
  .header-buttons {
    display: flex;
    gap: 1rem;
  }
  
  .header-buttons a {
    color: var(--lumon-light-blue);
    background-color: rgba(255, 255, 255, 0.1);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: var(--corner-radius);
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: background-color 0.2s ease;
  }
  
  .header-buttons a:hover {
    background-color: rgba(255, 255, 255, 0.2);
  }
  
  /* ========== Main Content ========== */
  main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    flex: 1;
  }
  
  /* ========== Graph Image ========== */
  .large-graph {
    width: 100%;
    max-width: 1800px;
    display: block;
    border-radius: var(--corner-radius);
    margin: 2rem auto;
    border: 1px solid var(--lumon-light-gray);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
  }

  .chart-container {
    width: 800px;       /* or whatever fixed width you prefer */
    height: 600px;      /* fixed height */
    border: 1px solid #ccc;  /* optional visible border */
    
    /* One of these overflow options: */
    overflow: hidden;   /* anything that extends beyond is clipped */
    /* overflow: auto;  if you prefer scrollbars instead of clipping */
    
    margin: 20px auto;  /* center horizontally, optional */
    position: relative; /* helps ensure it's a positioned block */
  }
  
  /* Force the mpld3 <svg> to fill the container. */
  .chart-container .mpld3-figure > svg {
    width: 100% !important; 
    height: 100% !important;
  }

  
  /* ========== Character Icons ========== */
  .char-icon {
    width: 32px;
    height: 32px;
    object-fit: cover;
    margin-right: 10px;
    vertical-align: middle;
    border-radius: 50%;
    border: 2px solid var(--lumon-light-teal);
  }
  
  /* ========== Character List ========== */
  .character-list {
    list-style-type: none;
    padding: 0;
    margin: 2rem 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
  }
  
  .character-list li {
    background-color: var(--lumon-mint);
    padding: 0.75rem;
    border-radius: var(--corner-radius);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    display: flex;
    align-items: center;
  }
  
  .character-list li:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  }
  
  /* ========== Tables ========== */
  table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    background-color: var(--lumon-white);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    border-radius: var(--corner-radius);
  }

  thead {
    border-bottom: 2px solid var(--lumon-light-blue)
  }
  
  th {
    background-color: var(--lumon-teal);
    color: var(--lumon-light-blue);
    text-align: left;
    padding: 0.75rem 1rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
  }
  
  td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--lumon-light-gray);
  }
  
  tr:nth-child(even) {
    background-color: var(--lumon-mint);
  }
  
  /* Positive and negative affinities */
  td:last-child {
    font-weight: 500;
  }
  
  td[data-affinity^="+"] {
    color: var(--lumon-teal);
  }
  
  td[data-affinity^="-"] {
    color: #d62828; /* A muted red that fits with the palette */
  }
  
  /* ========== Footer ========== */
  footer {
    text-align: center;
    padding: 2rem;
    margin-top: 2rem;
    background-color: var(--lumon-mint);
    color: var(--lumon-gray);
    font-size: 0.9rem;
    flex: 1;
    border-top: 1px solid var(--lumon-light-gray);
  }
  
  /* ========== Lumon Branding Elements ========== */
  .lumon-quote {
    background-color: var(--lumon-mint);
    padding: 2rem;
    margin: 2rem 0;
    text-align: center;
    font-style: italic;
    position: relative;
    border-left: 4px solid var(--lumon-teal);
  }
  
  .lumon-quote::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: 100px;
    background-repeat: no-repeat;
    background-position: 10px center;
    opacity: 0.1;
  }
  
  .lumon-badge {
    display: inline-block;
    background-color: var(--lumon-teal);
    color: var(--lumon-white);
    padding: 0.25rem 0.5rem;
    border-radius: 2px;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-left: 0.5rem;
  }
  
  /* ========== Responsive Design ========== */
  @media (max-width: 768px) {
    header {
      flex-direction: column;
      gap: 1rem;
      text-align: center;
    }
  
    .character-list {
      grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
  
    .header-buttons {
      flex-wrap: wrap;
      justify-content: center;
    }
  
    main {
      padding: 1rem;
    }
  }
  
  @media (max-width: 480px) {
    .character-list {
      grid-template-columns: 1fr;
    }
  
    h1 {
      font-size: 1.5rem;
    }
  
    h2 {
      font-size: 1.3rem;
    }
  }