.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.concierge-fab {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 45;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--ink);
  font-weight: 700;
  font-size: 14px;
  box-shadow: var(--glow), var(--shadow);
}

.concierge-panel {
  position: fixed;
  right: 20px;
  bottom: 76px;
  z-index: 46;
  width: min(400px, calc(100vw - 24px));
}

.concierge-shell {
  display: grid;
  grid-template-rows: auto 1fr auto auto;
  height: 560px;
  max-height: min(560px, calc(100vh - 120px));
  border: 1px solid var(--line-strong);
  border-radius: 22px;
  background: var(--elev);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.concierge-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 16px 12px;
  border-bottom: 1px solid var(--line);
}

.concierge-head b {
  display: block;
  font-size: 15px;
}

.concierge-head span {
  display: block;
  color: var(--mute);
  font-size: 12px;
  margin-top: 2px;
}

.concierge-x {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  color: var(--mute);
  font-size: 22px;
  line-height: 1;
}

.concierge-x:hover {
  color: var(--text);
  background: rgba(197, 232, 106, 0.08);
}

.concierge-msgs {
  overflow: auto;
  padding: 16px;
  display: grid;
  align-content: start;
  gap: 10px;
}

.concierge-msg {
  max-width: 88%;
  padding: 10px 12px;
  border-radius: 14px;
  font-size: 14px;
  line-height: 1.45;
}

.concierge-msg.is-bot {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
}

.concierge-msg.is-user {
  justify-self: end;
  background: rgba(197, 232, 106, 0.16);
  border: 1px solid var(--line-strong);
}

.concierge-msg.is-wait {
  color: var(--mute);
}

.concierge-note {
  font-size: 12px;
  color: var(--accent);
}

.concierge-prompts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0 16px 10px;
}

.concierge-prompts button {
  font-size: 12px;
  color: var(--mute);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 10px;
  text-align: left;
  background: var(--bg);
}

.concierge-prompts button:hover {
  color: var(--text);
  border-color: var(--line-strong);
}

.concierge-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  padding: 12px 16px 16px;
  border-top: 1px solid var(--line);
}

.concierge-form textarea {
  width: 100%;
  min-height: 46px;
  max-height: 120px;
  resize: none;
  border: 1px solid var(--line);
  background: var(--bg);
  border-radius: 12px;
  padding: 10px 12px;
}

.concierge-form textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.concierge-form .btn {
  min-height: 46px;
}

body.concierge-open .mobile-cta {
  display: none;
}

@media (max-width: 980px) {
  .concierge-fab {
    right: 12px;
    bottom: 76px;
  }

  .concierge-panel {
    right: 12px;
    left: 12px;
    bottom: 132px;
    width: auto;
  }

  .concierge-shell {
    height: min(520px, calc(100vh - 160px));
  }
}