:root {
    --primary: #202123;
    --overhover: hsla(240, 9%, 59%, 0.1);
  }
  
  * {
    margin: 0;
    padding: 0;
    font-family: courier;
  }
  
  nav {
    height: 50px;
    background: var(--primary);
    color: white;
    display: none;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    width: 100%;
  }
  
  nav div {
    margin: 0 20px;
    display: inline-block;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
  }
  
  .ham-menu {
    background: var(--primary);
    color: white;
    border: none;
    cursor: pointer;
  }
  
  .ham-menu span {
    display: block;
    width: 25px;
    height: 3px;
    margin-bottom: 5px;
    position: relative;
    background: black;
    border-radius: 3px;
    z-index: 1;
    transform-origin: 4px 0px;
    transition: transform 0.5s cubic-bezier(0.77, 0.2, 0.05, 1),
      background 0.5s cubic-bezier(0.77, 0.2, 0.05, 1), opacity 0.55s ease;
  }
  
  .ham-menu:hover span {
    background: white;
  }
  
  #main {
    display: flex;
  }
  
  /*Side Nav*/
  #sidenav {
    height: 100vh;
    width: 20rem;
    background-color: var(--primary);
    font-size: 1rem;
    color: white;
    position: fixed;
    left: 0;
    top: 0;
    margin: 0;
    z-index: 11;
  }
  
  #sidenav .sidenav-content {
    padding: 0.5rem;
  }
  
  #close {
    position: absolute;
    right: -40px;
    background: var(--primary);
    color: white;
    border: 1px solid grey;
    border-radius: 5px;
    cursor: pointer;
    display: none;
    width: 40px;
    height: 40px;
  }
  #close span {
    width: 40px;
    height: 40px;
    position: relative;
  }
  #close span:before,
  #close span:after {
    position: absolute;
    content: " ";
    top: -16px;
    left: -1px;
    height: 33px;
    width: 3px;
    background-color: black;
  }
  #close span:before {
    transform: rotate(45deg);
  }
  #close span:after {
    transform: rotate(-45deg);
  }
  
  #close:hover span:after,
  #close:hover span:before {
    background: white;
  }
  
  #new-chat-btn {
    background: var(--primary);
    color: white;
    border: 1px solid grey;
    border-radius: 5px;
    width: 100%;
    cursor: pointer;
    text-align: start;
    padding: 0.7rem;
    font-size: inherit;
  }
  
  #new-chat-btn:hover {
    background: var(--overhover);
  }
  
  .new-chat {
    cursor: pointer;
  }
  
  .saved-chats {
    margin: 0.5rem 0;
  }
  
  .saved-chats p {
    padding: 0.8rem;
    margin: 3px 0;
    border-radius: 5px;
    cursor: pointer;
  }
  
  .saved-chats p:hover {
    background: var(--overhover);
  }
  
  .saved-chats .selected {
    padding: 0.8rem;
    background: var(--overhover);
    margin: 3px 0;
    border-radius: 5px;
  }
  
  .config {
    margin: 0.5rem 0;
    position: absolute;
    bottom: 0;
    width: inherit;
    background: var(--primary);
  }
  
  .config p {
    padding: 0.7rem;
    cursor: pointer;
    margin: 5px 0;
    border-radius: 5px;
  }
  
  .config p:hover {
    background: var(--overhover);
  }
  
  .config hr {
    width: 19rem;
  }
  
  /*Main Content Body*/
  #content-body {
    height: 100vh;
    background-color: white;
    text-align: center;
    margin-left: 20rem;
    flex: 1;
  }
  
  #messages {
    padding-bottom: 100px;
  }
  
  .message-div {
    display: flex;
    margin: 10px auto;
    max-width: 800px;
    justify-content: start;
  }
  
  .user-message {
    background: ;
    padding: 10px;
  }
  
  .gpt-message {
    background: rgba(247, 247, 248);
    padding: 10px;
  }
  
  .message-profile-pic {
    margin-right: 20px;
  }
  
  .message-content {
    text-align: start;
    margin-top: 5px;
  }
  
  .message-content p {
    margin-bottom: 20px;
  }
  
  #chat-section {
    width: -webkit-fill-available;
    height: 130px;
    background-image: linear-gradient(to bottom, transparent 10%, white 90%);
    position: fixed;
    bottom: 0;
  }
  
  #chat-section div {
    max-width: 800px;
    margin: 2rem auto;
    padding: 0 20px;
  }
  
  #chat-section input {
    padding: 0.9rem;
    border-radius: 5px;
    border: 0.1px solid grey;
    width: 90%;
    font-size: 20px;
    box-shadow: 0 0 7px 0px grey;
  }
  
  #chat-section input:focus {
    outline: none;
  }
  
  @media screen and (max-width: 800px) {
    nav {
      display: flex;
    }
    #close {
      display: block;
    }
    #sidenav {
      position: fixed;
      left: -400px;
    }
    #content-body {
      margin: 50px 0 0 0;
    }
  }