/* * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  }
   */
  /* body {
    background-color: #f8f9fa;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
  } */
  
  .content {
    text-align: center;
    padding: 2rem;
    max-width: 800px;
  }
  
  h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #333;
  }
  
  p {
    font-size: 1.2rem;
    color: #666;
    line-height: 1.6;
  }
  
  .navbar-container {
    position: fixed;
    bottom: 40px;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: center;
    z-index: 1000;
  }
  
  .navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 0.8rem 1.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    display: flex;
    gap: 0.8rem;
    transform: translateY(0);
    transition: all 0.3s ease;
  }
  
  .navbar.hide {
    transform: translateY(150%);
  }
  
  .nav-item {
    position: relative;
    padding: 0.6rem 1.2rem;
    color: #666;
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.3s ease;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    overflow: hidden;
  }
  
  .nav-item:hover {
    color: #333;
    background: rgba(230, 230, 230, 0.5);
  }
  
  .nav-item.active {
    color: #2563eb;
    background: rgba(37, 99, 235, 0.1);
  }
  
  .nav-item::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: #2563eb;
    transition: width 0.3s ease;
    border-radius: 3px;
  }
  
  .nav-item.active::before {
    width: 30px;
  }
  
  .nav-item i {
    font-size: 1.2rem;
  }
  
  .nav-tooltip {
    position: absolute;
    top: -40px;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 0.4rem 0.8rem;
    border-radius: 8px;
    font-size: 0.8rem;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
  }
  
  .nav-item:hover .nav-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
  }
  
  @media (max-width: 768px) {
    .navbar {
      padding: 0.6rem 1rem;
      gap: 0.4rem;
    }
    
    .nav-item {
      padding: 0.5rem 0.8rem;
      font-size: 0.9rem;
    }
    
    .nav-item span {
      display: none;
    }
    
    .nav-item i {
      font-size: 1.1rem;
    }
  }