body {
    margin: 0;
    font-family: 'Helvetica Neue', sans-serif;
    background-color: #f8f8f8;
}

.header {
    background-color: #FFCC00;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    color: black;
    font-weight: 400;
    margin: 0;
    font-size: 32px;
}

.logout {
    background-color: #FF9900;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
}

.logout:hover {
    background-color: #e68a00;
}

.chat-container {
    background: white;
    width: 500px;
    margin: 30px auto;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.user-select {
    margin-bottom: 20px;
}

.user-select label {
    font-weight: bold;
    color: #FF9900;
}

select, input[type="text"] {
    width: 100%;
    padding: 12px;
    margin-top: 8px;
    margin-bottom: 20px;
    border: 1px solid #ccc;
    border-radius: 8px;
}

button {
    background-color: #FF9900;
    color: white;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    width: 100%;
    font-size: 16px;
    cursor: pointer;
}

button:hover {
    background-color: #e68a00;
}

.chat-messages {
    border: 1px solid #ccc;
    height: 300px;
    overflow-y: scroll;
    padding: 10px;
    margin-bottom: 20px;
    background: #f9f9f9;
    border-radius: 8px;
}

.message {
    margin-bottom: 10px;
}