body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

.chat-container {
    max-width: 400px;
    margin: 50px auto;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    overflow: hidden;
}

.chat-history {
    padding: 20px;
    overflow-y: auto;
    max-height: 400px;
}

.chat-bubble {
    margin-bottom: 15px;
    padding: 10px;
    border-radius: 15px;
    max-width: 70%;
    clear: both;
    position: relative;
    font-size: 14px;
    line-height: 1.4;
}

.user-bubble {
    background-color: #007aff;
    color: #fff;
    float: right;
}

.bot-bubble {
    background-color: #f0f0f0;
    color: #333;
    float: left;
}

.user-input {
    display: flex;
    padding: 10px;
    border-top: 1px solid #ddd;
}

.chat-input {
    flex-grow: 1;
    padding: 8px;
    border: none;
    border-radius: 5px;
    margin-right: 10px;
    font-size: 14px;
    outline: none;
}

.send-button {
    padding: 8px 12px;
    border: none;
    border-radius: 5px;
    background-color: #007aff;
    color: #fff;
    cursor: pointer;
    font-size: 14px;
}

.intro-container{
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.intro-container img{
    width: 50%;
    min-width: 300px;
}
#loader{
    font-size: 25px;
    text-align: center;
}
.kakao-ad{
    display: flex;
    justify-content: center;
    align-items:center;
    margin-top: 20px;
    min-width: 350px;
    min-height: 200px;
}