html {
      scroll-behavior: smooth;
  }

  body {
      font-family: 'Inter', sans-serif;
      background-color: #f8f9fa;
      color: #212529;
  }

  .code-block-wrapper {
      position: relative;
  }

  .code-block {
      font-family: 'Roboto Mono', monospace;
      font-size: 0.875rem;
      background-color: #1e1e1e;
      color: #d4d4d4;
      padding: 1.25rem;
      border-radius: 0.5rem;
      overflow-x: auto;
      white-space: pre;
  }

  .copy-btn {
      position: absolute;
      top: 0.75rem;
      right: 0.75rem;
      background-color: #4a5568;
      color: white;
      border: none;
      padding: 0.3rem 0.6rem;
      border-radius: 0.3rem;
      cursor: pointer;
      font-size: 0.8rem;
      transition: background-color 0.2s;
  }

  .copy-btn:hover {
      background-color: #2d3748;
  }

  .solution-toggle {
      display: inline-block;
      background-color: #2563eb;
      color: white;
      padding: 0.5rem 1rem;
      border-radius: 0.375rem;
      cursor: pointer;
      font-weight: 600;
      margin-top: 1rem;
      transition: background-color 0.2s;
  }

  .solution-toggle:hover {
      background-color: #1d4ed8;
  }

  .solution-content {
      display: none;
      margin-top: 1rem;
      border-left: 4px solid #d1d5db;
      padding-left: 1rem;
  }

  /* SQL Syntax Highlighting Tokens */
  .code-block .token.keyword {
      color: #569cd6;
  }

  /* CREATE, SELECT, INSERT, etc. */
  .code-block .token.comment {
      color: #6a9955;
  }

  /* -- Ceci est un commentaire */
  .code-block .token.string {
      color: #ce9178;
  }

  /* 'une chaîne' */
  .code-block .token.function {
      color: #dcdcaa;
  }

  /* COUNT(), SUM() */
  .code-block .token.variable {
      color: #9cdcfe;
  }

  /* @variable, table/column names */
  .code-block .token.number {
      color: #b5cea8;
  }

  /* 1, 10.5 */
  .code-block .token.operator {
      color: #d4d4d4;
  }

  /* +, =, * */
  .code-block .token.punctuation {
      color: #d4d4d4;
  }

  /* , ; */
  .code-block .token.type {
      color: #4ec9b0;
  }

  /* INT, VARCHAR, etc. */

  /* Modal Image Zoom */
  .zoomable {
      cursor: zoom-in;
      transition: transform 0.2s;
  }

  .zoomable:hover {
      transform: scale(1.02);
  }

  .modal {
      display: none;
      position: fixed;
      z-index: 1000;
      padding-top: 50px;
      left: 0;
      top: 0;
      width: 100%;
      height: 100%;
      overflow: auto;
      background-color: rgba(0, 0, 0, 0.9);
  }

  .modal-content {
      margin: auto;
      display: block;
      width: 80%;
      max-width: 1200px;
      max-height: 90vh;
      object-fit: contain;
  }

  .modal-close {
      position: absolute;
      top: 15px;
      right: 35px;
      color: #f1f1f1;
      font-size: 40px;
      font-weight: bold;
      transition: 0.3s;
      cursor: pointer;
  }

  .modal-close:hover,
  .modal-close:focus {
      color: #bbb;
      text-decoration: none;
      cursor: pointer;
  }

  @media only screen and (max-width: 700px) {
      .modal-content {
          width: 100%;
      }
  }