* { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
      background-color: #0d1117;
      color: #e6edf3;
      display: flex;
      flex-direction: column;
      align-items: center;
      min-height: 100vh;
      padding: 0 1rem;
      overflow-x: hidden;
      position: relative;
    }

    /* === CANVAS BACKGROUND === */
    #background {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      z-index: -1;
      background: radial-gradient(circle at center, #0d1117 0%, #010409 100%);
    }

    a { color: #58a6ff; text-decoration: none; }
    a:hover { text-decoration: underline; }

    /* === LANGUAGE BUTTON === */
    #langBtn {
      position: fixed;
      top: 20px;
      right: 20px;
      background: #161b22;
      color: #58a6ff;
      border: 1px solid #21262d;
      border-radius: 8px;
      padding: 6px 12px;
      font-size: 0.9rem;
      cursor: pointer;
      transition: background 0.2s ease, color 0.2s ease;
      z-index: 10;
    }
    #langBtn:hover {
      background: #21262d;
      color: #79c0ff;
    }

    header {
      text-align: center;
      margin-top: 80px;
      margin-bottom: 60px;
      animation: fadeIn 1s ease forwards;
    }

    .profile-pic {
      width: 150px;
      height: 150px;
      border-radius: 50%;
      object-fit: cover;
      border: 3px solid #58a6ff;
      margin-bottom: 20px;
      box-shadow: 0 0 15px rgba(56,139,253,0.3);
    }

    h1 {
      font-size: 2.8rem;
      margin-bottom: 0.5rem;
      color: #f0f6fc;
    }

    h2 {
      font-weight: 400;
      color: #8b949e;
    }

    main {
      max-width: 900px;
      width: 100%;
    }

    section {
      margin-bottom: 80px;
    }

    .bio {
      text-align: center;
      line-height: 1.7;
      font-size: 1.1rem;
      color: #c9d1d9;
      max-width: 700px;
      margin: 0 auto 60px auto;
    }

    .fit-picture {
      width: 250px;
    }

    .projects {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
    }

    .project {
      background: rgba(22, 27, 34, 0.9);
      border-radius: 12px;
      padding: 20px;
      box-shadow: 0 0 10px rgba(0,0,0,0.4);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      backdrop-filter: blur(6px);
    }

    .project:hover {
      transform: translateY(-5px);
      box-shadow: 0 0 20px rgba(56,139,253,0.3);
    }

    .project h3 {
      margin-bottom: 10px;
      color: #58a6ff;
    }

    .project p {
      color: #c9d1d9;
      line-height: 1.5;
      font-size: 0.95rem;
    }

    ul {
      list-style: none;
      padding: 0;
    }

    li {
      margin-bottom: 20px;
      background-color: rgba(22, 27, 34, 0.9);
      border-radius: 10px;
      padding: 20px;
      line-height: 1.5;
      color: #c9d1d9;
      box-shadow: 0 0 8px rgba(0,0,0,0.3);
      backdrop-filter: blur(6px);
    }

    li b {
      color: #58a6ff;
    }

    .socials {
      text-align: center;
    }

    .socials a {
      margin: 0 12px;
      font-weight: 500;
      color: #58a6ff;
      transition: color 0.2s;
    }

    .socials a:hover {
      color: #79c0ff;
    }

    /* === CV BUTTON === */
    .btn-cv {
      display: inline-block;
      padding: 10px 20px;
      background-color: #58a6ff;
      color: #fff;
      border-radius: 8px;
      text-decoration: none;
      font-weight: bold;
      transition: background 0.2s;
      font-size: 1rem;
    }
    .btn-cv:hover {
      background-color: #79c0ff;
    }

    footer {
      margin-top: 60px;
      padding: 40px 0;
      text-align: center;
      color: #8b949e;
      font-size: 0.9rem;
      border-top: 1px solid #21262d;
    }

    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(10px); }
      to { opacity: 1; transform: translateY(0); }
    }