body, html {
    margin: 0;
    padding: 0;
    background: black;
    height: 100%;
    overflow: hidden;
    font-family: 'Arial', sans-serif;
  }
  
.navbar {
  width: 100%;
  height: 70px;
  background-color: black;
  display: flex;
  align-items: center;
  padding: 0 20px;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 999;
  box-shadow: 0 2px 5px rgba(0, 255, 0, 0.1);
}

.logo {
  height: 50px;
  object-fit: contain;
  filter: drop-shadow(0 0 4px #00ff00);
}

.content {
  padding: 20px;
  padding-top: 90px;
  color: white;
  font-family: 'Arial', sans-serif;
}
  
  .portal {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 150px;
    height: 150px;
    background-color: black;
    border: 2px solid #00ff00;
    border-radius: 50%;
    box-shadow: 0 0 20px #00ff00, 0 0 40px #00ff00 inset;
    transform: translate(-50%, -50%);
    cursor: pointer;
    z-index: 5;
    transition: transform 2s ease-in-out;
  }
  
  .overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: black;
    opacity: 0;
    pointer-events: none;
    transition: opacity 1s ease-in-out;
    z-index: 10;
  }