body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    font-size: 14px;
}

.chat-container {
    max-width: 500px;
    margin: 0 auto;
    padding: 20px;
    position: relative;
}

.chat-box {
    background-color: #f2f2f2;
    padding: 10px;
    border-radius: 10px;
    margin-bottom: 20px;
    overflow-y: scroll;
    height: 300px;
}

.chat-message {
    background-color: #fff;
    padding: 10px;
    border-radius: 10px;
    margin-bottom: 10px;
}

.chat-message p {
    margin: 0;
    padding: 0;
}

.chat-input {
    display: flex;
    margin-top: 20px;
}

.chat-input input {
    flex: 1;
    padding: 10px;
    border: none;
    border-radius: 5px;
    margin-right: 10px;
}

.chat-input button {
    background-color: #4CAF50;
    color: #fff;
    border: none;
    padding: 10px;
    border-radius: 5px;
    cursor: pointer;
}

.chat-input button:hover {
    background-color: #3e8e41;
}

.voice {
    margin-left: 5px;
}

.assistant {
    color: blue;
}

.intro-container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.intro-container img {
    width: 50%;
    min-width: 300px;
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.8);
    display: none;
    position: absolute;
  }
  
  .loading-spinner {
    border: 4px solid rgba(0, 0, 0, 0.1);
    border-top: 4px solid #3498db;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
    position: absolute;
    top: 42%;
    left: 46%;
    transform: translate(-50%, -50%);
  }
  
  @keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
  }

  .kakao-ad {
    overflow-y: auto;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-width: 360px;
    margin-top: 20px;
  }