.tb-assistent {
  font-family: "Noto Sans", "Open Sans", Arial, sans-serif;
  color: #1e3d6a;
}
.tb-assistent h3 {
  margin: 0 0 8px;
  font-size: 22px;
}
.tb-assistent-box {
  background: #fff;
  border: 1px solid #c5d0de;
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(30, 61, 106, 0.08);
  overflow: hidden;
}
.tb-assistent-head {
  background: #1e3d6a;
  color: #fff;
  padding: 12px 16px;
}
.tb-assistent-head a { color: #fff; text-decoration: underline; }
.tb-assistent-pflicht {
  background: #f4e6e0;
  color: #7a2e1c;
  padding: 10px 14px;
  font-size: 13px;
  line-height: 1.4;
}
.tb-assistent-log {
  height: 240px;
  overflow: auto;
  padding: 12px 14px;
  background: #f7f9fc;
}
.tb-assistent-bubble {
  margin: 0 0 10px;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 14px;
  line-height: 1.45;
  white-space: pre-wrap;
}
.tb-assistent-bubble.assistent { background: #e8eef6; }
.tb-assistent-bubble.anrufer { background: #fff4ea; margin-left: 24px; }
.tb-assistent-bubble.meta { background: transparent; color: #5c6758; font-size: 12px; padding: 0; }
.tb-assistent-form {
  display: flex;
  gap: 8px;
  padding: 10px;
  border-top: 1px solid #c5d0de;
}
.tb-assistent-form input {
  flex: 1;
  border: 1px solid #c5d0de;
  border-radius: 6px;
  padding: 8px 10px;
}
.tb-assistent-form button {
  background: #1e3d6a;
  color: #fff;
  border: 0;
  border-radius: 6px;
  padding: 8px 14px;
  cursor: pointer;
}
.tb-float-btn {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 9999;
  background: #1e3d6a;
  color: #fff;
  border: 0;
  border-radius: 999px;
  padding: 12px 18px;
  font-size: 14px;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(30, 61, 106, 0.28);
}
.tb-float-panel {
  position: fixed;
  right: 18px;
  bottom: 70px;
  width: 340px;
  max-width: calc(100vw - 24px);
  z-index: 9999;
  display: none;
}
.tb-float-panel.open { display: block; }
@media (max-width: 480px) {
  .tb-float-panel { right: 8px; left: 8px; width: auto; }
}