.assistant-213 {
  --a213-dark: #171717;
  --a213-primary: #e00441;
  --a213-secondary: #ba195b;
  --a213-surface: #fff;
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 999999;
  font: 15px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--a213-dark);
}
.assistant-213--left { right: auto; left: 22px; }
.assistant-213--left .assistant-213__launcher { margin-right: auto; margin-left: 0; }
.assistant-213--left .assistant-213__panel { right: auto; left: 0; }
.assistant-213 *, .assistant-213 *::before, .assistant-213 *::after { box-sizing: border-box; }
.assistant-213__launcher {
  display: flex; align-items: center; gap: 9px; margin-left: auto; padding: 13px 18px;
  border: 0; border-radius: 999px; background: linear-gradient(135deg, var(--a213-primary), var(--a213-secondary)); color: #fff;
  box-shadow: 0 8px 28px rgba(0,0,0,.24); cursor: pointer; font: inherit; font-weight: 700;
}
.assistant-213__launcher span:first-child { color: #fff; font-size: 20px; }
.assistant-213__panel {
  position: absolute; right: 0; bottom: 64px; width: min(370px, calc(100vw - 28px)); height: min(560px, calc(100vh - 110px));
  overflow: hidden; border: 1px solid rgba(0,0,0,.1); border-radius: 18px; background: var(--a213-surface);
  box-shadow: 0 18px 60px rgba(0,0,0,.24);
}
.assistant-213__panel[hidden] { display: none; }
.assistant-213__panel header { height: 62px; display: flex; align-items: center; justify-content: space-between; padding: 0 18px; background: linear-gradient(135deg, var(--a213-primary), var(--a213-secondary)); color: #fff; }
.assistant-213__close { border: 0; background: transparent; color: #fff; cursor: pointer; font-size: 28px; line-height: 1; }
.assistant-213__messages { height: calc(100% - 130px); padding: 18px; overflow-y: auto; background: #f6f5f2; }
.assistant-213__message { width: fit-content; max-width: 86%; margin: 0 0 12px; padding: 10px 13px; border-radius: 14px; white-space: pre-wrap; overflow-wrap: anywhere; }
.assistant-213__message--assistant { border-bottom-left-radius: 4px; background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,.08); }
.assistant-213__message--user { margin-left: auto; border-bottom-right-radius: 4px; background: var(--a213-dark); color: #fff; }
.assistant-213__message.is-error { color: #a01d1d; }
.assistant-213__form { height: 68px; display: flex; align-items: center; gap: 8px; padding: 10px; border-top: 1px solid #ddd; background: #fff; }
.assistant-213__form textarea { flex: 1; min-height: 44px; max-height: 80px; resize: none; padding: 10px 12px; border: 1px solid #bbb; border-radius: 10px; font: inherit; }
.assistant-213__form button { min-height: 44px; border: 0; border-radius: 10px; padding: 0 13px; background: var(--a213-primary); color: #fff; cursor: pointer; font: inherit; font-weight: 700; }
.assistant-213__form button:disabled { opacity: .55; cursor: wait; }
.assistant-213 button:focus-visible, .assistant-213 textarea:focus-visible { outline: 3px solid var(--a213-primary); outline-offset: 2px; }
@media (max-width: 480px) {
  .assistant-213 { right: 14px; bottom: 14px; }
  .assistant-213--left { right: auto; left: 14px; }
  .assistant-213__panel { position: fixed; inset: 12px; width: auto; height: auto; }
  .assistant-213__launcher span:last-child { display: none; }
}