@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500&display=swap');

    body {
      margin: 0;
      padding: 0;
      font-family: "Roboto", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      color: #1a1a1a;
      background: #f9f9f9 url('../images/background.jpg') center center fixed;
      background-size: cover;
      filter: brightness(1.05) contrast(0.95);
      line-height: 1.7;
    }

    body::before {
      content: "";
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      /*background-color: rgba(255, 255, 255, 0.7);*/
      z-index: -1;
    }

    main {
      max-width: 850px;
      margin: 40px auto;
      padding: 40px;
      background-color: rgba(255, 255, 255, 0.99);
      border-radius: 12px;
      box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
      backdrop-filter: blur(6px);
    }

    h1, h2, h3 {
      font-family: "Roboto", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      font-weight: 400;
      color: #111;
      letter-spacing: 1px;
    }

    h1 {
      text-align: center;
      font-size: 2.3em;
      margin-bottom: 0.3em;
    }

    h2 {
      font-size: 1.4em;
      border-left: 3px solid #bcbcbc;
      padding-left: 10px;
      margin-top: 2em;
    }

    h3 {
      margin-top: 3em;
      text-align: center;
      font-size: 1.2em;
      color: #333;
    }

    nav {
      text-align: center;
      margin-top: 15px;
      margin-bottom: 50px;
    }

    nav a {
      display: inline-block;
      margin: 0 10px;
      padding: 6px 12px;
      font-family: "Roboto", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      font-size: 0.95em;
      text-decoration: none;
      color: #333;
      border-radius: 999px;
      border: 1px solid transparent;
      transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
    }

    nav a:hover {
      border-color: #999;
      background-color: rgba(0, 0, 0, 0.03);
    }

    nav a.active {
      border-color: #000;
      background-color: #000;
      color: #fff;
    }


    p {
      margin-bottom: 1em;
      text-align: justify;
    }

    a {
      color: #333;
      text-decoration: none;
      border-bottom: 1px solid #888;
      transition: color 0.2s ease, border-bottom-color 0.2s ease;
    }

    a:hover {
      color: #000;
      border-bottom-color: #000;
    }

    img {
      display: block;

      max-width: 180px;
      border-radius: 5%;
      box-shadow: 0 0 10px rgba(0,0,0,0.15);
      filter: grayscale(10%);
    }

    .bio-header {
      display: flex;
     
      gap: 25px;
      margin: 30px 0 20px 0;
    }
    
    .bio-header img {
      margin: 0;
      max-width: 250px;
    }

    .bio-intro {
      margin: 20px 0px 0 0 0;
      text-align: justify;
      flex: 1;
    }

    @media (max-width: 700px) {
      .bio-header {
        flex-direction: column;
        align-items: center;
      }

      .bio-intro {
        margin-top: 15px;
      }
    }


    blockquote {
      font-style: italic;
      color: #444;
      border-left: 3px solid #ccc;
      margin: 1.5em 0;
      padding-left: 15px;
    }

    footer {
      text-align: center;
      font-size: 0.9em;
      color: #555;
      margin-top: 60px;
    }

    @media (max-width: 700px) {
      main { margin: 30px 10px; padding: 25px; }
      h1 { font-size: 1.8em; }
      img { max-width: 130px; }
    }

    .book {
      display: flex;
      gap: 25px;
      margin-bottom: 40px;
      align-items: flex-start;
    }

    .book-cover {
      max-width: 180px;
      border-radius: 4px;
      box-shadow: 0 0 10px rgba(0,0,0,0.15);
      filter: none;
    }

    .book-text h2 {
      margin-top: 0;
    }

    @media (max-width: 700px) {
      .book {
        flex-direction: column;
        align-items: center;
        text-align: left;
      }
    }

    @media (max-width: 700px) {
      body {
        background-color: #f9f9f9;
        background-image: url('../images/background.jpg');
        background-repeat: repeat;
        background-position: top left;
        background-attachment: scroll;   /* important sur mobile */
        background-size: auto;           /* annule le cover */
        /* filter: none;  // à toi de voir si tu veux garder l’effet ou pas */
      }

      main {
        margin: 30px 10px;
        padding: 25px;
      }

      h1 {
        font-size: 1.8em;
      }

      img {
        max-width: 130px;
      }
    }