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

body {
    font-family: sans-serif;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background-color: #f5f5f5;
}

#app {
    background: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

h1 {
    margin-bottom: 16px;
    color: #333;
}

#messages {
    height: 400px;
    overflow-y: scroll;
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 12px;
    margin-bottom: 12px;
    background: #fafafa;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.message {
    max-width: 70%;
    padding: 8px 12px;
    border-radius: 16px;
    word-wrap: break-word;
    line-height: 1.4;
}

.user-msg {
    align-self: flex-end;
    background-color: #007bff;
    color: #fff;
    border-bottom-right-radius: 4px;
}

.bot-msg {
    align-self: flex-start;
    background-color: #e9ecef;
    color: #333;
    border-bottom-left-radius: 4px;
}

#input-area {
    display: flex;
    gap: 8px;
}

#message-input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    outline: none;
}

#message-input:focus {
    border-color: #007bff;
}

#send-btn {
    width: 80px;
    padding: 10px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
}

#send-btn:hover {
    background-color: #0056b3;
}

#send-btn:disabled {
    background-color: #aaa;
    cursor: not-allowed;
}

#status {
    margin-top: 8px;
    font-size: 12px;
    color: #666;
}

#status.connected {
    color: #28a745;
}

#status.disconnected {
    color: #dc3545;
}