/* LCS — advanced chatbot (docked nav) */

:root {
  --chat-panel-min-h: min(70vh, 520px);
  --chat-panel-max-h: min(86vh, 680px);
  --chat-messages-min-h: 9rem;
  --chat-quick-max-h: min(42vh, 300px);
}

.lcs-nav__chat {
  min-height: var(--chat-panel-min-h);
  max-height: var(--chat-panel-max-h);
}

.lcs-nav__chat .chatbot__progress {
  padding: 0.5rem 0.85rem 0.35rem;
  border-bottom: 1px solid rgba(2, 2, 2, 0.1);
  flex-shrink: 0;
}

.lcs-nav__chat .chatbot__progress-bar {
  height: 3px;
  background: rgba(2, 2, 2, 0.12);
  overflow: hidden;
}

.lcs-nav__chat .chatbot__progress-bar span {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--black);
  transition: width 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.lcs-nav__chat .chatbot__step {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 700;
  opacity: 0.55;
}

.lcs-nav__chat .chatbot__brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.lcs-nav__chat .chatbot__stripe {
  width: 8px;
  height: 8px;
  background: var(--black);
  animation: chat-pulse 1.4s ease-in-out infinite;
}

@keyframes chat-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.35; transform: scale(0.85); }
}

.lcs-nav__chat .chatbot__header button {
  background: transparent;
  border: 0;
  cursor: pointer;
  padding: 0.25rem;
  color: inherit;
  line-height: 1;
}

.lcs-nav__chat .chat-msg--bot {
  border-left: 3px solid var(--cream);
  padding-left: 0.65rem;
}

.lcs-nav__chat .chat-msg--user {
  background: rgba(2, 2, 2, 0.06);
  padding: 0.4rem 0.55rem;
  max-width: 88%;
  text-decoration: none;
}

.lcs-nav__chat .chat-msg--summary {
  font-size: 0.8rem;
  line-height: 1.45;
  background: var(--gray);
  color: var(--cream);
  padding: 0.65rem 0.75rem;
  max-width: 95%;
  align-self: flex-start;
}

.lcs-nav__chat .chat-msg--summary strong {
  display: block;
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.35rem;
  opacity: 0.85;
}

.lcs-nav__chat .chat-msg__link-wrap {
  margin: 0.5rem 0 0;
}

.lcs-nav__chat .chat-msg__link {
  color: var(--cream);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
  word-break: break-word;
}

.lcs-nav__chat .chat-msg__link:hover {
  opacity: 0.9;
}

.lcs-nav__chat .chat-typing {
  display: flex;
  gap: 4px;
  padding: 0.35rem 0;
  align-self: flex-start;
}

.lcs-nav__chat .chat-typing span {
  width: 6px;
  height: 6px;
  background: var(--black);
  animation: chat-dot 0.9s ease-in-out infinite;
}

.lcs-nav__chat .chat-typing span:nth-child(2) { animation-delay: 0.15s; }
.lcs-nav__chat .chat-typing span:nth-child(3) { animation-delay: 0.3s; }

@keyframes chat-dot {
  0%, 80%, 100% { opacity: 0.25; transform: translateY(0); }
  40% { opacity: 1; transform: translateY(-3px); }
}

.lcs-nav__chat .chatbot__quick {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.4rem;
  padding: 0.55rem 0.65rem 0.65rem;
  flex: 0 0 auto;
  flex-shrink: 0;
  min-height: 2.75rem;
  max-height: var(--chat-quick-max-h);
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  border-top: 1px solid rgba(2, 2, 2, 0.12);
  box-sizing: border-box;
}

.lcs-nav__chat .chatbot__quick:not([hidden]) {
  min-height: 2.85rem;
}

.lcs-nav__chat .chat-quick__btn {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 0.4rem;
  width: 100%;
  min-height: 2.75rem;
  box-sizing: border-box;
  text-align: left;
  padding: 0.55rem 0.6rem;
  font-size: 0.72rem;
  font-weight: 600;
  line-height: 1.3;
  border: 2px solid var(--black);
  background: var(--cream);
  color: var(--black);
  cursor: pointer;
  font-family: inherit;
  transition: background 0.2s ease, color 0.2s ease;
  overflow: visible;
}

.lcs-nav__chat .chat-quick__btn span {
  flex: 1;
  min-width: 0;
  line-height: 1.3;
}

.lcs-nav__chat .chat-quick__btn .ti {
  font-size: 1rem;
  flex-shrink: 0;
  opacity: 0.85;
}

.lcs-nav__chat .chat-quick__btn:hover,
.lcs-nav__chat .chat-quick__btn:focus-visible {
  background: var(--black);
  color: var(--cream);
}

.lcs-nav__chat .chat-quick__btn--back {
  grid-column: 1 / -1;
  justify-content: center;
  min-height: 2.5rem;
  background: transparent;
  border-style: dashed;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lcs-nav__chat .chat-quick__btn--skip {
  grid-column: 1 / -1;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.65rem 0.75rem;
  border-style: dotted;
}

.lcs-nav__chat .chatbot__input.is-textarea-mode textarea {
  flex: 1;
  border: 0;
  background: transparent;
  min-height: 3.5rem;
  resize: none;
  font-family: inherit;
  font-size: 0.88rem;
  padding: 0.65rem 0.75rem;
}

.lcs-nav__chat .chatbot__input.is-textarea-mode input[type="text"] {
  display: none;
}