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

body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #f5f5f5;
}

.chat-container {
    width: 400px;
    height: 500px;
    background-color: white;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.chat-box {
    padding: 20px;
    overflow-y: auto;
    flex-grow: 1;
}

input {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    margin: 10px;
    width: calc(100% - 22px);
    font-size: 16px;
}

button {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    background-color: #4CAF50;
    color: white;
    cursor: pointer;
    margin: 10px;
    width: calc(100% - 22px);
    font-size: 16px;
}

button:hover {
    background-color: #45a049;
}

.message {
    margin: 10px 0;
}

.user-msg {
    text-align: right;
    font-weight: bold;
}

.bot-msg {
    text-align: left;
    color: #555;
}