body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.chat-container {
    width: 500px;
    margin: 40px auto;
    padding: 20px;
    border: 1px solid #ccc;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    flex: 1;
}

.app-header {
    text-align: center;
    padding: 10px 0 20px 0;
    margin-bottom: 0;
}

.app-header h1 {
    margin: 0;
    font-size: 24px;
    color: #333;
    font-weight: normal;
}

.chat-log {
    padding: 20px;
    border-bottom: 1px solid #ccc;
}

.message {
    margin-bottom: 10px;
    padding: 10px;
    border-radius: 10px;
}

.user-message {
    background-color: #f0f0f0;
    align-self: flex-start;
}

.assistant-message {
    background-color: #e0f0f0;
    align-self: flex-end;
}

.system-message {
    background-color: #ccc;
    align-self: center;
}

.input-container {
    padding: 20px;
    display: flex;
    flex-direction: column;
}

#user-input {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 10px;
}

#send-btn {
    padding: 10px 20px;
    background-color: #4CAF50;
    color: #fff;
    border: none;
    border-radius: 10px;
    cursor: pointer;
}

#send-btn:hover {
    background-color: #3e8e41;
}

.admin-section {
    padding: 20px;
    border-top: 1px solid #ccc;
}

#system-message {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 10px;
    width: 100%;
}

.example-btn {
    padding: 10px 20px;
    background-color: #4CAF50;
    color: #fff;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    margin-top: 10px;
}

.example-btn:hover {
    background-color: #3e8e41;
}

.sticky-footer {
    background-color: #f8f9fa;
    border-top: 1px solid #e9ecef;
    padding: 15px 20px;
    text-align: center;
    font-size: 12px;
    color: #6c757d;
    margin-top: auto;
}

.footer-line {
    margin: 2px 0;
}

.sticky-footer a {
    color: #007bff;
    text-decoration: none;
}

.sticky-footer a:hover {
    color: #0056b3;
    text-decoration: underline;
}