.background-container {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: linear-gradient(135deg, #121212 0%, #0a0a0a 100%);
      overflow: hidden;
      z-index: -1;
    }
    
    .binary-column {
      position: absolute;
      top: -500px;
      color: rgba(0, 255, 255, 0.15);
      text-shadow: 0 0 5px rgba(0, 255, 255, 0.3);
      font-family: monospace;
      font-size: 1.2rem;
      animation: fall linear infinite;
      text-align: center;
      width: 20px;
    }
    
    .binary-digit {
      display: block;
      line-height: 1.2em;
      transition: all 0.3s ease;
    }
    
    .binary-digit.highlight {
      color: rgba(0, 255, 255, 0.8);
      text-shadow: 0 0 10px rgba(0, 255, 255, 0.8);
    }
    
    .grid-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-image: 
        linear-gradient(rgba(0, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 255, 0.03) 1px, transparent 1px);
      background-size: 30px 30px;
      background-position: 0 0;
      pointer-events: none;
    }
    
    .glow-effect {
      position: absolute;
      width: 300px;
      height: 300px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(0, 255, 255, 0.1) 0%, rgba(0, 255, 255, 0) 70%);
      filter: blur(20px);
      opacity: 0.7;
      animation: float 15s infinite ease-in-out;
    }
    
    @keyframes fall {
      0% {
        transform: translateY(0);
        opacity: 1;
      }
      85% {
        opacity: 0.8;
      }
      100% {
        transform: translateY(2000px);
        opacity: 0;
      }
    }
    
    @keyframes float {
      0%, 100% { transform: translate(0, 0); }
      25% { transform: translate(-50px, 50px); }
      50% { transform: translate(50px, -30px); }
      75% { transform: translate(30px, 60px); }
    }
    
    .header-logo-container {
      display: flex;
      align-items: center;
      gap: 15px;
    }
    
    .header-logo-image {
      width: 40px;
      height: auto;
    }
    
    .profile-header h3 {
      margin: 0;
      color: #fff;
      font-size: 1.5em;
      display: inline-block;
    }
    
    .profile-header .gradient-text {
      background: linear-gradient(90deg, #fff, #00ffff);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      text-shadow: 0 0 10px rgba(0, 255, 255, 0.3);
    }
    
    /* New subtle circular logout button with power icon */
    .logout-button {
      position: relative;
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: linear-gradient(45deg, rgba(0, 123, 255, 0.2), rgba(0, 255, 255, 0.2));
      border: 1px solid rgba(0, 255, 255, 0.3);
      color: rgba(0, 255, 255, 0.8);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      overflow: hidden;
      transition: all 0.3s ease;
      box-shadow: 0 0 10px rgba(0, 255, 255, 0.15);
    }
    
    .logout-button:hover {
      transform: translateY(-2px);
      background: linear-gradient(45deg, rgba(0, 123, 255, 0.4), rgba(0, 255, 255, 0.4));
      box-shadow: 0 0 15px rgba(0, 255, 255, 0.3);
    }
    
    .logout-icon {
      font-size: 18px;
      position: relative;
      z-index: 1;
    }