.header {
    background-color: #ffffff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    border-bottom-right-radius: 12px;
    border-bottom-left-radius: 12px;
  }

  .navbar {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1rem 1.5rem;
  }

  .navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 1200px;
    z-index: 1;
    
  }

  .navbar-logo {
    display: flex;
    align-items: center;
  }

  .logo-image {
    height: 40px;
  }

  .nav-menu {
    display: flex;
    justify-content: space-between;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .nav-item {
    margin-left: 2rem;
  }

  .nav-link {
    font-size: 1.5rem;
    font-weight: 400;
    color: #475569;
    text-decoration: none;
    transition: 0.3s ease;
    position: relative;
  }

  .nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: #3b82f6;
    transition: width 0.3s ease;
  }

  .nav-link:hover::after,
  .nav-link.active::after {
    width: 100%;
  }

  .nav-link:hover,
  .nav-link.active {
    color: #3b82f6;
  }

  .hamburger {
    display: none;
  }

  .bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    transition: all 0.3s ease-in-out;
    background-color: #475569;
  }

  @media only screen and (max-width: 768px) {
    .nav-menu {
      position: fixed;
      left: -100%;
      top: 3rem;
      flex-direction: column;
      background-color: #fff;
      width: 100%;
      border-radius: 10px;
      text-align: center;
      transition: 0.3s;
      box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
    }

    .nav-menu.active {
      left: 0;
    }

    .nav-item {
      margin: 0.5rem 0;
    }

    .hamburger {
      display: block;
      cursor: pointer;
    }

    .hamburger.active .bar:nth-child(2) {
      opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
      transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
      transform: translateY(-8px) rotate(-45deg);
    }
  }