#boot-screen {
      position: fixed;
      top: 0; left: 0;
      width: 100vw; height: 100vh;
      background: #000;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: flex-start;
      padding-top: 80px;
      z-index: 9999;
      color: #fff;
      font-family: 'Montserrat', sans-serif;
      overflow: hidden;
      transition: opacity 1.8s ease-in-out;
    }
    .spinner {
      width: 80px;
      height: 80px;
      border: 8px solid rgba(255,255,255,0.1);
      border-top: 8px solid #fff;
      border-radius: 50%;
      animation: spin 1.2s linear infinite;
      opacity: 0;
      transition: opacity 0.8s ease;
    }
    #xp-logo {
      width: 180px;
      height: 180px;
      background: url('icons/linux_cat.jpg') center/cover no-repeat; /* change logo.png to your filename */
      border-radius: 12px;
      opacity: 0;
      transform: scale(0.8);
      box-shadow: 0 0 40px rgba(255,255,255,0.3);
      animation: pulse 2s infinite alternate ease-in-out;
    }
    #boot-text {
      margin: 40px 0 20px;
      font-size: 22px;
      font-weight: 700;
      letter-spacing: 0.04em;
      opacity: 0;
      transition: opacity 1s ease;
    }
    #boot-logs {
      width: 80%;
      max-width: 900px;
      height: 40vh;
      overflow-y: auto;
      overflow-x: hidden;
      font-family: monospace;
      font-size: 14px;
      color: #ddd;
      opacity: 0;
      transition: opacity 1s ease;
      padding: 10px;
      background: rgba(0,0,0,0.6);
      border-radius: 8px;
      flex-grow: 0;
      margin-bottom: 80px;
      display: flex;
      flex-direction: column;
    }
    #boot-logs::-webkit-scrollbar {
      width: 0;
      display: none;
    }
    #boot-logs {
      scrollbar-width: none;
      -ms-overflow-style: none;
    }
    .log-line {
      opacity: 1;
      white-space: pre;
      line-height: 1.4;
      margin: 0;
      padding: 0;
      font-family: monospace;
      font-size: 14px;
      color: #ddd;
    }
    .log-ok { color: #0f0; }
    .log-failed { color: #f44; }
    #progress-container {
      position: fixed;
      bottom: 40px;
      width: 360px;
      height: 6px;
      background: rgba(255,255,255,0.15);
      border-radius: 3px;
      overflow: hidden;
      opacity: 0;
      transition: opacity 1s ease;
    }
    #progress-bar {
      width: 0%;
      height: 100%;
      background: linear-gradient(90deg, rgb(104, 104, 104), rgb(83, 83, 83), rgb(240, 241, 240), rgb(255, 254, 254));
      border-radius: 3px;
      transition: width 0.2s ease-out;
    }
    @keyframes spin { to { transform: rotate(360deg); } }
    @keyframes fadeIn { to { opacity: 1; } }
    @keyframes scaleIn { to { opacity: 1; transform: scale(1); } }
    @keyframes pulse { to { box-shadow: 0 0 60px rgba(255,255,255,0.5); } }
    @keyframes logFade { to { opacity: 1; } }