body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

.login-container {
    width: 300px;
    margin: 100px auto;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.login-container h2 {
    margin-bottom: 20px;
}

.login-container input {
    width: auto;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.button-container {
    display: flex;
    justify-content: space-between;
}

.button-container button {
    width: 48%;
    padding: 10px;
    border: none;
    border-radius: 5px;
    background-color: #007BFF;
    color: #fff;
    cursor: pointer;
}

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

.message {
    margin-top: 20px;
    color: red;
}

.dashboard-container {
    display: flex;
    height: 100vh;
}

.sidebar {
    width: 250px;
    background-color: #2c3e50;
    color: #ecf0f1;
    padding: 20px;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
}

.sidebar h2 {
    margin-top: 0;
    font-size: 1.5em;
}

.sidebar nav ul {
    list-style: none;
    padding: 0;
}

.sidebar nav ul li {
    margin: 15px 0;
}

.sidebar nav ul li a {
    color: #ecf0f1;
    text-decoration: none;
    font-size: 1.1em;
}

.sidebar nav ul li a.active {
    font-weight: bold;
    color: #3498db;
}

.main-content {
    flex-grow: 1;
    padding: 20px;
    background-color: #ecf0f1;
    overflow-y: auto;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.card {
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.card h3 {
    margin-top: 0;
    font-size: 1.2em;
}

.card.clickable {
    cursor: pointer;
}

.card.clickable:hover {
    background-color: #bdc3c7;
}

.chat-container {
    width: 300px;
    margin: 50px auto;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.chat-window {
    height: 200px;
    overflow-y: auto;
    border: 1px solid #ccc;
    margin-bottom: 10px;
    padding: 10px;
    background-color: #f9f9f9;
}

.chat-window div {
    margin-bottom: 10px;
}

.chat-container input {
    width: calc(100% - 22px);
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.chat-container button {
    width: 100%;
    padding: 10px;
    border: none;
    border-radius: 5px;
    background-color: #007BFF;
    color: #fff;
    cursor: pointer;
}

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