/* Reset / base */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: Arial, sans-serif;
  background-color: #f4f4f4;
  color: #333;
}

/* Layout */
header {
  background-color: #222;
  color: white;
  padding: 1rem;
  text-align: center;
}

footer {
  padding: 1rem;
  text-align: center;
  font-size: 0.9rem;
  color: #777;
}

/* Buttons */
button {
  padding: 0.5rem 1rem;
  border: none;
  background-color: #007bff;
  color: white;
  cursor: pointer;
}

button:hover {
  background-color: #0056b3;
}

/* Inputs */
input,
textarea {
  width: 100%;
  padding: 0.5rem;
  margin-top: 0.5rem;
}
/* .user_list ul {
  list-style: none;
}

.user_list li {
  padding: 0.75rem;
  background: white;
  margin-bottom: 0.5rem;
  cursor: pointer;
}

.user_list li:hover {
  background-color: #eee;
} */

#chat_box {
  height: 300px; /* fixed height */
  overflow-y: auto; /* vertical scrolling */
  padding: 1rem;
  background-color: #fff;
  border: 1px solid #ccc;
}