html, body {
  height: 100%;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Roboto", sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #f2f2f2; 
  overflow: hidden;
  position: relative;
}

#video-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover; 
  z-index: -1; 
}

.chat {
  width: 80%;
  max-width: 600px;
  height: 80%;
  background-color: rgba(255, 255, 255, 0.5); 
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  position: relative; 
  z-index: 1; 
}

.conversation {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
}

.input-container {
  display: flex;
  align-items: center;
  padding: 10px;
  background-color: #e0e0e0;
}

.input-msg {
  flex: 1;
  padding: 8px;
  border: none;
  border-radius: 4px;
  margin-right: 10px;
  font-size: 16px;
}

.send-btn, .voice-btn {
  padding: 8px 16px;
  background-color: #4CAF50;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}