/* ========== ENHANCED CHATBOT UI/UX ========== */

/* ========== PERFORMANCE OPTIMIZATIONS ========== */
/* Force GPU acceleration for smoother animations */
.message,
#chatInterface,
.chat-container,
.chat-messages,
.message-content,
.typing-indicator,
.dot,
.message-text,
#sendMessage,
.floating-chat-btn {
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d;
  transform: translateZ(0);
  will-change: transform, opacity;
}

/* Improve performance and prevent overflow */
body.has-chat-open {
  overflow: hidden;
  overscroll-behavior: none;
}

/* ========== CHAT INTERFACE CONTAINER ========== */
#chatInterface {
  max-width: 480px;
  width: 100%;
  min-width: 320px;
  border-radius: 1.5rem 1.5rem 0 0;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  transform-origin: bottom right;
  box-shadow:
    0 8px 40px 0 rgba(255, 109, 0, 0.3),
    0 2px 12px 0 rgba(255, 109, 0, 0.3);
  overflow: hidden;
  position: fixed;
  height: auto;
  max-height: 80vh;
  z-index: 999;
}

#chatInterface.hidden {
  opacity: 0;
  transform: translateY(20px) scale(0.95);
  pointer-events: none;
  transition: all 0.3s ease-out;
  visibility: hidden;
}

/* ========== CHAT CONTAINER ========== */
.chat-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  max-height: 650px;
  overflow: hidden;
  background: rgba(26, 26, 26, 0.95);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: inset 0 0 0 1px rgba(255, 109, 0, 0.3);
  transition: all 0.3s ease;
  position: relative;
}

/* ========== CHAT MESSAGES AREA ========== */
.chat-messages {
  flex: 1;
  height: auto;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 1.25rem;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  scroll-padding-bottom: 12px;
  contain: content;
  position: relative;
  will-change: scroll-position;
  transform: translateZ(0);
  backface-visibility: hidden;
  min-height: 0;
  max-height: none;
  padding-bottom: 24px;
}

/* ========== MOBILE LAYOUT FIXES ========== */
@media (max-width: 600px) {
  #chatInterface {
    top: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    left: 0 !important;
    width: 100% !important;
    max-width: 100% !important;
    height: 100dvh !important;
    max-height: 100dvh !important;
    border-radius: 0 !important;
  }

  .chat-container {
    height: 100%;
    max-height: 100%;
    overflow: hidden;
  }

  .chat-messages {
    height: auto;
    min-height: 0;
    max-height: none;
    padding-bottom: 16px;
  }

  .chat-input {
    position: relative;
    bottom: auto;
  }
}

/* Prevent elastic scroll issues on iOS */
.chat-messages::before,
.chat-messages::after {
  content: '';
  display: block;
  height: 0.5px;
  width: 100%;
  visibility: hidden;
}

/* Ensure last message is visible */
.chat-messages::after {
  height: 20px;
}

/* ========== MESSAGE COMPONENTS ========== */
.message {
  opacity: 0;
  transform: translateY(8px);
  transition:
    opacity 0.3s ease,
    transform 0.3s ease;
  display: flex;
  margin-bottom: 16px;
  align-items: flex-start;
  position: relative;
  contain: content layout;
}

.message.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered animation delays */
.message:nth-child(2n) {
  transition-delay: 0.05s;
}
.message:nth-child(3n) {
  transition-delay: 0.1s;
}

.message-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.message-content {
  padding: 0.875rem 1.125rem;
  border-radius: 1rem;
  max-width: 85%;
  word-wrap: break-word;
  overflow-wrap: break-word;
  hyphens: auto;
  line-height: 1.6;
  font-size: 1rem;
  margin-bottom: 4px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
  transition:
    transform 0.2s ease,
    opacity 0.2s ease;
  contain: content;
}

.bot-content {
  background-color: rgba(39, 39, 42, 0.9);
  border: 1px solid rgba(255, 109, 0, 0.2);
  border-bottom-left-radius: 0.25rem;
}

.user-content {
  background: linear-gradient(
    135deg,
    rgba(255, 109, 0, 0.15),
    rgba(255, 171, 64, 0.15)
  );
  border: 1px solid rgba(255, 109, 0, 0.2);
  border-bottom-right-radius: 0.25rem;
}

.user-message {
  justify-content: flex-end;
}

.message-text {
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.6;
  font-size: 1rem;
  color: #ffffff;
  opacity: 0.95;
  transition: opacity 0.3s ease;
  min-height: 1.2em;
}

.message-time {
  font-size: 0.75rem;
  opacity: 0.7;
  margin-top: 4px;
}

/* ========== TYPING INDICATOR ========== */
.typing-indicator {
  margin-bottom: 0.5rem;
  padding: 8px 12px;
  background: rgba(30, 30, 30, 0.6);
  border: 1px solid rgba(255, 109, 0, 0.2);
  border-radius: 1rem;
  display: inline-flex;
  align-items: center;
  max-width: 80px;
  min-width: 60px;
  height: 36px;
}

.typing-dots {
  display: flex;
  align-items: center;
  justify-content: center;
  column-gap: 5px;
  height: 100%;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #ff6d00;
  opacity: 0.6;
  animation: dotPulseImproved 1.4s infinite ease-in-out both;
}

.dot:nth-child(1) {
  animation-delay: -0.32s;
}
.dot:nth-child(2) {
  animation-delay: -0.16s;
}
.dot:nth-child(3) {
  animation-delay: 0s;
}

/* ========== CHAT INPUT AREA ========== */
.chat-input {
  display: flex;
  gap: 10px;
  position: sticky;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(26, 26, 26, 0.95);
  padding: 16px;
  border-top: 1px solid rgba(255, 109, 0, 0.2);
  z-index: 20;
  min-height: 64px;
  max-height: 120px;
  transition: all 0.3s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
  visibility: visible;
}

#chatInput {
  flex: 1;
  padding: 12px 16px;
  background: rgba(45, 45, 45, 0.8);
  border: 1px solid rgba(255, 109, 0, 0.3);
  border-radius: 16px;
  color: white;
  font-size: 16px;
  font-family: 'Exo 2', sans-serif;
  resize: none;
  outline: none;
  transition: all 0.3s ease;
  min-height: 48px;
  max-height: 120px;
  overflow-y: auto;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
  position: relative;
  z-index: 5;
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
  display: block;
  width: calc(100% - 60px);
}

#chatInput:focus {
  border-color: rgba(255, 109, 0, 0.8);
  background: rgba(55, 55, 55, 0.9);
  box-shadow: 0 0 0 2px rgba(255, 109, 0, 0.2);
}

#sendMessage {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(to bottom right, #ff6d00, #ff9500);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 2px 6px rgba(255, 109, 0, 0.3);
  position: relative;
  z-index: 5;
  flex-shrink: 0;
  visibility: visible;
  opacity: 1;
}

#sendMessage:hover:not([disabled]) {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255, 109, 0, 0.5);
}

#sendMessage:disabled {
  background: #555;
  cursor: not-allowed;
  opacity: 0.5;
}

/* ========== FLOATING CHAT BUTTON ========== */
.floating-chat-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 64px;
  height: 64px;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  will-change: transform;
  z-index: 1000;
  box-shadow: 0 4px 16px rgba(255, 109, 0, 0.5);
}

.floating-chat-btn:hover {
  transform: translateY(-5px) scale(1.05);
}

.floating-chat-btn-shifted {
  transform: scale(0.85);
  opacity: 0.85;
  bottom: 30px;
  right: 30px;
}

/* ========== QUICK REPLIES ========== */
.quick-replies {
  margin-top: 12px;
  margin-bottom: 12px;
  width: 100%;
}

.quick-replies-container {
  background: rgba(30, 30, 30, 0.4);
  border-radius: 12px;
  padding: 12px;
  border: 1px solid rgba(255, 109, 0, 0.2);
}

.quick-replies-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.quick-reply-btn {
  transition:
    transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275),
    background-color 0.2s ease,
    border-color 0.2s ease;
  will-change: transform;
  margin: 6px 6px 6px 0;
  padding: 8px 16px;
  border-radius: 20px;
  background: rgba(255, 109, 0, 0.15);
  border: 1px solid rgba(255, 109, 0, 0.3);
  color: #ffffff;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
}

.quick-reply-btn:hover {
  transform: translateY(-2px) scale(1.03);
  background: rgba(255, 109, 0, 0.25);
  border-color: rgba(255, 109, 0, 0.5);
}

.quick-reply-btn:active {
  transform: translateY(1px) scale(0.98);
}

/* ========== FEEDBACK AND CONTACT ========== */
.feedback-box {
  margin-top: 10px;
  opacity: 0;
  transform: translateY(5px);
  animation: fadeInUp 0.5s forwards;
  animation-delay: 0.5s;
}

.feedback-btn {
  background: rgba(30, 30, 30, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #888;
  transition: all 0.2s ease;
}

.feedback-btn:hover {
  background: rgba(255, 109, 0, 0.2);
  color: #ff6d00;
  border-color: rgba(255, 109, 0, 0.4);
  transform: translateY(-2px);
}

.contact-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: 20px;
  background: linear-gradient(135deg, #ff6d00, #ffab40);
  color: white;
  font-weight: bold;
  text-decoration: none;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(255, 109, 0, 0.3);
}

.contact-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(255, 109, 0, 0.4);
}

/* ========== AVATAR EFFECTS ========== */
.bot-avatar {
  position: relative;
}

.bot-avatar::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: rgba(255, 109, 0, 0.4);
  z-index: -1;
  animation: pulse 2s infinite;
  opacity: 0;
}

/* ========== SCROLLBAR CUSTOMIZATION ========== */
.custom-scrollbar::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

.custom-scrollbar::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.2);
  border-radius: 8px;
  margin: 4px;
}

.custom-scrollbar::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, #ff6d00, #ffab40);
  border-radius: 8px;
}

.custom-scrollbar::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, #ff8f00, #ffc107);
}

/* ========== ANIMATIONS ========== */
@keyframes messageAppearImproved {
  0% {
    opacity: 0;
    transform: translateY(8px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes dotPulseImproved {
  0%,
  80%,
  100% {
    transform: scale(0.8);
    opacity: 0.6;
  }
  40% {
    transform: scale(1.2);
    opacity: 1;
    box-shadow: 0 0 6px rgba(255, 109, 0, 0.6);
  }
}

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

@keyframes pulse {
  0% {
    transform: scale(0.95);
    opacity: 0;
  }
  50% {
    transform: scale(1.2);
    opacity: 0.3;
  }
  100% {
    transform: scale(0.95);
    opacity: 0;
  }
}

/* ========== TYPING EFFECT STABILIZATION ========== */
.message-text.typing-effect {
  min-height: 24px;
  position: relative;
  width: 100%;
  will-change: contents;
  transition: height 0.3s ease;
  display: block;
  contain: content;
  opacity: 1;
}

.message-text.typing-effect::before {
  content: '';
  display: block;
  height: 4px;
  visibility: hidden;
  pointer-events: none;
}

/* ========== MOBILE RESPONSIVENESS ========== */
@media (max-width: 600px) {
  #chatInterface {
    max-width: 100%;
    width: 100%;
    right: 0;
    left: 0;
    bottom: 0;
    border-radius: 1.5rem 1.5rem 0 0;
    margin: 0;
    max-height: 85vh;
  }

  .chat-container {
    border-radius: 1.5rem 1.5rem 0 0;
    max-height: 85vh;
    height: auto;
  }

  .chat-messages {
    height: calc(65vh - 120px);
    padding: 12px;
    padding-bottom: 24px;
    max-height: calc(100vh - 170px);
  }

  .message-content {
    max-width: 90%;
    padding: 10px 14px;
  }

  .floating-chat-btn {
    bottom: 20px;
    right: 20px;
    width: 56px;
    height: 56px;
  }

  .floating-chat-btn i {
    font-size: 1.5rem;
  }

  #chatInput {
    font-size: 16px;
    padding: 10px 14px;
    min-height: 44px;
  }

  .chat-input {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 12px;
    background: rgba(26, 26, 26, 0.95);
    z-index: 20;
  }
}

/* Full screen mobile chat */
@media screen and (max-width: 600px) {
  body.has-chat-open {
    position: fixed;
    width: 100%;
    height: 100%;
    overflow: hidden;
  }

  #chatInterface:not(.hidden) {
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    max-width: none;
    max-height: none;
    border-radius: 0;
    transform: none;
  }

  #chatInterface:not(.hidden) .chat-container {
    border-radius: 0;
    height: 100%;
  }
}

/* ========== MOBILE SCROLLBAR OPTIMIZATION ========== */
@media (max-width: 768px) and (pointer: coarse) {
  .chat-messages {
    scrollbar-width: none;
    -ms-overflow-style: none;
  }

  .chat-messages::-webkit-scrollbar {
    display: none;
    width: 0px;
    background: transparent;
  }

  #chatInput {
    scrollbar-width: thin;
  }
}

/* ========== FALLBACK ANIMATIONS ========== */
@supports not (IntersectionObserver in window) {
  .message {
    animation: messageAppearImproved 0.3s ease forwards;
  }
}

/* ========== Z-INDEX MANAGEMENT ========== */
#main-header {
  z-index: 1000;
}

/* ========== PERFORMANCE OPTIMIZATION CLASSES ========== */
.chat-transition-in-progress {
  overflow: hidden;
}

.chat-resizing .chat-messages,
.chat-resizing .chat-container,
.chat-resizing .chat-input {
  transition: none;
}