/* ============================================================
   CHATBOT UI STYLES
   ============================================================ */

.chatbot-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 1rem;
}

/* Float over Zalo button if needed (Zalo uses bottom 20px maybe?) */
@media (max-width: 768px) {
  .chatbot-container {
    bottom: 1.5rem;
    right: 1.5rem;
  }
}

.chatbot-toggle-btn {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: var(--color-jade);
  color: var(--color-white);
  border: none;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), background-color 0.3s ease;
}

.chatbot-toggle-btn:hover {
  transform: scale(1.08);
  background-color: var(--color-forest);
}

.chatbot-toggle-btn .icon-close.hidden {
  display: none;
}
.chatbot-toggle-btn.active .icon-chat {
  display: none;
}
.chatbot-toggle-btn.active .icon-close.hidden {
  display: block;
}

.chatbot-window {
  width: 350px;
  height: 520px;
  max-width: calc(100vw - 3rem);
  max-height: calc(100vh - 8rem);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform-origin: bottom right;
  transition: opacity 0.3s ease, transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.chatbot-window.hidden {
  opacity: 0;
  pointer-events: none;
  transform: scale(0.6) translateY(20px);
}

.chatbot-header {
  background: var(--color-jade);
  color: var(--color-white);
  padding: 1rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

.chatbot-header-title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
}

.chatbot-close-btn {
  background: none;
  border: none;
  color: var(--color-white);
  cursor: pointer;
  opacity: 0.8;
  transition: opacity 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.chatbot-close-btn:hover {
  opacity: 1;
}

.chatbot-messages {
  flex: 1;
  padding: 1.25rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  background: var(--color-cream-light);
  scroll-behavior: smooth;
}

.chat-msg {
  max-width: 85%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  line-height: 1.5;
  animation: fadeIn 0.3s ease;
  word-wrap: break-word;
}

.chat-msg p {
  margin-bottom: 0.5rem;
}
.chat-msg p:last-child {
  margin-bottom: 0;
}

.chat-msg.bot {
  align-self: flex-start;
  background: var(--color-white);
  color: var(--color-text);
  border: 1px solid rgba(0,0,0,0.05);
  border-bottom-left-radius: 4px;
}

.chat-msg.user {
  align-self: flex-end;
  background: var(--color-jade);
  color: var(--color-white);
  border-bottom-right-radius: 4px;
}

.chatbot-input {
  display: flex;
  padding: 0.75rem;
  background: var(--color-white);
  border-top: 1px solid var(--color-cream-dark);
  align-items: flex-end;
  gap: 0.5rem;
}

.chatbot-input textarea {
  flex: 1;
  border: 1px solid var(--color-cream-dark);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.75rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  resize: none;
  max-height: 120px;
  outline: none;
  transition: border-color 0.2s ease;
  background: var(--color-cream-light);
}

.chatbot-input textarea:focus {
  border-color: var(--color-jade);
  background: var(--color-white);
}

.chatbot-send-btn {
  background: var(--color-jade);
  color: var(--color-white);
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background-color 0.2s ease;
  flex-shrink: 0;
}

.chatbot-send-btn:hover {
  background: var(--color-forest);
}

.chatbot-send-btn:disabled {
  background: var(--color-text-muted);
  cursor: not-allowed;
}

/* Nút CTA xuất hiện trong Chat */
.chat-cta-btn {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--color-forest);
  color: var(--color-white) !important;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: background 0.2s ease;
  text-align: center;
}
.chat-cta-btn:hover {
  background: var(--color-jade);
}

/* Typing indicator */
.typing-indicator {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.75rem 1rem;
  align-self: flex-start;
  background: var(--color-white);
  border: 1px solid rgba(0,0,0,0.05);
  border-radius: var(--radius-sm);
  border-bottom-left-radius: 4px;
}

.typing-dot {
  width: 6px;
  height: 6px;
  background: var(--color-text-muted);
  border-radius: 50%;
  animation: typing 1.4s infinite cubic-bezier(0.2, 0.8, 0.2, 1);
}

.typing-dot:nth-child(2) {
  animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes typing {
  0%, 100% { transform: translateY(0); opacity: 0.5; }
  50% { transform: translateY(-4px); opacity: 1; }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Markdown styling inside chat */
.chat-msg strong {
  font-weight: 600;
}
.chat-msg em {
  font-style: italic;
}
.chat-msg ul {
  padding-left: 1.25rem;
  margin: 0.5rem 0;
}
.chat-msg li {
  margin-bottom: 0.25rem;
}