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

html, body {
  width: 100%;
  height: 100%;
  background: #000;
  font-family: Arial, sans-serif;
  overflow: hidden;
}

#app {
  position: fixed;
  inset: 0;
  bottom: 36px;
}

#chat-container {
  width: 100%;
  height: 100%;
}

#chat-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* Footer */
footer {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 36px;
  background: #000;
  border-top: 1px solid #111;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 12px;
}

footer a {
  color: #fff;
  font-size: 11px;
  text-align: center;
  text-decoration: none;
  line-height: 1.3;
}

/* Install button */
#installBtn {
  position: fixed;
  right: 14px;
  bottom: 48px;
  background: #000;
  color: #fff;
  border: 1px solid #333;
  padding: 8px 14px;
  font-size: 13px;
  cursor: pointer;
}