styles.css

/* styles.css */
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&display=swap');

  body, html {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
    height: 100%;
    background-color: #f0f2f5;
  }
  .container {
    display: flex;
    height: 100%;
  }
  .sidebar {
    width: 300px;
    background-color: #fff;
    border-right: 1px solid #e0e0e0;
    display: flex;
    flex-direction: column;
    box-shadow: 2px 0 5px rgba(0,0,0,0.1);
  }
  .main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }
  .header {
    background-color: #4267B2;
    color: white;
    padding: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  }
  .friend-list {
    flex: 1;
    overflow-y: auto;
  }
  .friend-item {
    padding: 15px;
    border-bottom: 1px solid #e0e0e0;
    cursor: pointer;
    transition: background-color 0.3s;
  }
  .friend-item:hover {
    background-color: #f5f5f5;
  }
  .chat-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: #fff;
    border-radius: 8px;
    margin: 15px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    overflow: hidden;
  }
  .chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
  }
  .message {
    max-width: 70%;
    margin-bottom: 10px;
    padding: 10px 15px;
    border-radius: 18px;
    word-wrap: break-word;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
  }
  .message.new {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 0.3s ease-out forwards;
  }
  @keyframes fadeIn {
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  .message.sent {
    background-color: #0084ff;
    color: white;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
  }
  .message.received {
    background-color: #f0f0f0;
    color: black;
    align-self: flex-start;
    border-bottom-left-radius: 4px;
  }
  .chat-input {
    display: flex;
    padding: 15px;
    border-top: 1px solid #e0e0e0;
    align-items: center;
  }
  .chat-input input {
    flex: 1;
    padding: 12px;
    border: none;
    border-radius: 20px;
    background-color: #f0f2f5;
    font-size: 14px;
  }
  .chat-input button {
    margin-left: 10px;
    padding: 10px 20px;
    background-color: #4267B2;
    color: white;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    transition: background-color 0.3s;
  }
  .chat-input button:hover {
    background-color: #365899;
  }
  #addFriendBtn, #logoutBtn, #adminPanelBtn {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    font-size: 14px;
    padding: 5px 10px;
    border-radius: 4px;
    transition: background-color 0.3s;
  }
  #addFriendBtn:hover, #logoutBtn:hover, #adminPanelBtn:hover {
    background-color: rgba(255,255,255,0.1);
  }
  .modal {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.4);
  }
  .modal-content {
    background-color: #fefefe;
    margin: 15% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 300px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  }
  .close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
  }
  .close:hover,
  .close:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
  }
  .no-chat-selected {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    font-size: 18px;
    color: #888;
  }
  .message iframe, .message img {
    max-width: 100%;
    border-radius: 10px;
  }
  #currentUsername {
    margin-right: 10px;
    font-weight: 500;
  }
  #loginContainer {
    background-color: #f0f2f5;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
  }
  .auth-form {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1), 0 8px 16px rgba(0, 0, 0, 0.1);
    width: 350px;
  }
  .auth-form h1 {
    text-align: center;
    color: #4267B2;
    margin-bottom: 20px;
  }
  .auth-form input {
    margin: 0.5rem 0;
    padding: 14px 16px;
    width: 100%;
    border: 1px solid #dddfe2;
    border-radius: 6px;
    font-size: 17px;
    box-sizing: border-box;
  }
  .auth-form button {
    margin-top: 1rem;
    background-color: #4267B2;
    border: none;
    border-radius: 6px;
    font-size: 20px;
    line-height: 48px;
    padding: 0 16px;
    width: 100%;
    color: white;
    cursor: pointer;
    transition: background-color 0.3s;
  }
  .auth-form button:hover {
    background-color: #365899;
  }
  .auth-form p {
    margin-top: 1rem;
    text-align: center;
    color: #4267B2;
  }
  .auth-form a {
    color: #4267B2;
    text-decoration: none;
    font-weight: 500;
  }
  .auth-form a:hover {
    text-decoration: underline;
  }
  .emoji-picker {
    position: absolute;
    bottom: 100%;
    left: 0;
    z-index: 1;
    display: none;
  }
  .emoji-toggle {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    padding: 5px;
  }
  #imageInput {
    display: none;
  }
  #imageLabel {
    cursor: pointer;
    padding: 5px;
    font-size: 20px;
  }
  #adminPanel {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    max-width: 80%;
    max-height: 80%;
    overflow-y: auto;
  }
  #adminPanel h2 {
    margin-top: 0;
    color: #4267B2;
  }
  #userList {
    list-style-type: none;
    padding: 0;
  }
  #userList li {
    margin-bottom: 10px;
    padding: 10px;
    background-color: #f0f2f5;
    border-radius: 4px;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  #userList button {
    background-color: #4267B2;
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
    margin-left: 5px;
  }
  #userList button:hover {
    background-color: #365899;
  }
  #userList button.remove {
    background-color: #d9534f;
  }
  #userList button.remove:hover {
    background-color: #c9302c;
  }
  #banDuration {
    margin-left: 10px;
    padding: 5px;
    border-radius: 4px;
    border: 1px solid #ddd;
  }