body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
    background: #f0f2f5;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

h1 {
    text-align: center;
    color: #128C7E;
}

.status {
    text-align: center;
    margin: 10px 0;
    padding: 10px;
    background: #e8f5e9;
    border-radius: 5px;
}

.qr-container {
    display: flex;
    justify-content: center;
    margin: 20px 0;
}

.qr-container canvas {
    border: 10px solid white;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.chat-container {
    margin-top: 20px;
}

.messages {
    height: 400px;
    overflow-y: auto;
    border: 1px solid #ddd;
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 5px;
}

.message {
    margin: 10px 0;
    padding: 10px;
    border-radius: 5px;
}

.message.you {
    background: #DCF8C6;
    margin-left: 20%;
}

.message.ai {
    background: #E8F5E9;
    margin-right: 20%;
}

.input-container {
    display: flex;
    gap: 10px;
}

input {
    flex: 1;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
}

button {
    padding: 10px 20px;
    background: #128C7E;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background: #075E54;
}