body {
    font-family: Arial, sans-serif;
    background-color: #f4f6f9;
    display: flex;
    justify-content: center;
    margin-top: 50px;
}

.chat-container {
    width: 400px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    display: flex;
    flex-direction: column;
}

.chat-header {
    background: #2c3e50;
    color: white;
    padding: 15px;
    text-align: center;
    font-weight: bold;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
}

.chat-box {
    padding: 15px;
    height: 350px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.bot-message {
    background: #ecf0f1;
    padding: 10px;
    border-radius: 10px;
    margin-bottom: 10px;
    align-self: flex-start;
}

.user-message {
    background: #3498db;
    color: white;
    padding: 10px;
    border-radius: 10px;
    margin-bottom: 10px;
    align-self: flex-end;
}

.input-area {
    display: flex;
    border-top: 1px solid #ddd;
}

input {
    flex: 1;
    padding: 10px;
    border: none;
    border-bottom-left-radius: 10px;
}

button {
    padding: 10px 15px;
    border: none;
    background: #2c3e50;
    color: white;
    cursor: pointer;
    border-bottom-right-radius: 10px;
}