/**
 * ChatWidget Styles
 * 
 * Comprehensive CSS styling for the portfolio chatbot widget.
 * Matches the portfolio's dark theme design with primary color #6366f1.
 * 
 * Requirements: 1.4, 3.1, 3.2, 3.3, 3.4, 5.1, 5.2
 */

/* ============================================
   CSS Custom Properties (Design Tokens)
   ============================================ */
.chatbot-widget {
  /* Primary colors - matching portfolio design */
  --chatbot-primary-color: #6366f1;
  --chatbot-primary-light: #818cf8;
  --chatbot-primary-dark: #4f46e5;
  
  /* Dark theme colors - matching portfolio */
  --chatbot-bg-black: #0a0a0a;
  --chatbot-bg-dark: #111111;
  --chatbot-bg-dark-gray: #1a1a1a;
  --chatbot-bg-medium-gray: #2a2a2a;
  --chatbot-text-light-gray: #888888;
  --chatbot-text-white: #ffffff;
  
  /* Bot message colors */
  --chatbot-bot-bg: #2a2a2a;
  --chatbot-bot-text: #e0e0e0;
  
  /* User message colors */
  --chatbot-user-bg: var(--chatbot-primary-color);
  --chatbot-user-text: #ffffff;
  
  /* Shadows */
  --chatbot-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --chatbot-shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --chatbot-shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
  --chatbot-shadow-primary: 0 4px 20px rgba(99, 102, 241, 0.4);
  
  /* Transitions */
  --chatbot-transition-fast: 0.15s ease;
  --chatbot-transition-normal: 0.3s ease;
  --chatbot-transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Sizing */
  --chatbot-widget-width: 380px;
  --chatbot-widget-height: 550px;
  --chatbot-button-size: 60px;
  --chatbot-border-radius: 16px;
  --chatbot-border-radius-sm: 8px;
  --chatbot-border-radius-lg: 20px;
  
  /* Z-index */
  --chatbot-z-index: 9999;
}

/* ============================================
   Widget Container
   ============================================ */
.chatbot-widget {
  position: fixed;
  z-index: var(--chatbot-z-index);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Position variants */
.chatbot-widget--bottom-right {
  bottom: 24px;
  right: 24px;
}

.chatbot-widget--bottom-left {
  bottom: 24px;
  left: 24px;
}

/* ============================================
   Floating Button
   ============================================ */
.chatbot-floating-btn {
  position: relative;
  width: var(--chatbot-button-size);
  height: var(--chatbot-button-size);
  border-radius: 50%;
  background: linear-gradient(135deg, var(--chatbot-primary-color) 0%, var(--chatbot-primary-light) 100%);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--chatbot-shadow-primary);
  transition: transform var(--chatbot-transition-normal), 
              box-shadow var(--chatbot-transition-normal);
  outline: none;
}

.chatbot-floating-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 30px rgba(99, 102, 241, 0.5);
}

.chatbot-floating-btn:active {
  transform: scale(0.95);
}

.chatbot-floating-btn:focus-visible {
  outline: 2px solid var(--chatbot-primary-light);
  outline-offset: 3px;
}

/* Floating button icons */
.chatbot-icon {
  width: 28px;
  height: 28px;
  color: var(--chatbot-text-white);
  transition: transform var(--chatbot-transition-normal), 
              opacity var(--chatbot-transition-normal);
}

.chatbot-icon--chat {
  opacity: 1;
  transform: scale(1);
}

.chatbot-icon--close {
  position: absolute;
  opacity: 0;
  transform: scale(0.5) rotate(-90deg);
}

/* Icon states when widget is open */
.chatbot-widget--open .chatbot-icon--chat {
  opacity: 0;
  transform: scale(0.5) rotate(90deg);
}

.chatbot-widget--open .chatbot-icon--close {
  opacity: 1;
  transform: scale(1) rotate(0deg);
}

/* Unread badge */
.chatbot-unread-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  min-width: 20px;
  height: 20px;
  background: #ef4444;
  color: var(--chatbot-text-white);
  font-size: 11px;
  font-weight: 600;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 6px;
  animation: chatbot-badge-pulse 2s infinite;
}

@keyframes chatbot-badge-pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

/* ============================================
   Chat Interface Container
   ============================================ */
.chatbot-interface {
  position: absolute;
  bottom: calc(var(--chatbot-button-size) + 16px);
  right: 0;
  width: var(--chatbot-widget-width);
  height: var(--chatbot-widget-height);
  background: var(--chatbot-bg-dark);
  border-radius: var(--chatbot-border-radius-lg);
  border: 1px solid var(--chatbot-bg-medium-gray);
  box-shadow: var(--chatbot-shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  
  /* Animation states */
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.95);
  transform-origin: bottom right;
  transition: opacity var(--chatbot-transition-slow),
              visibility var(--chatbot-transition-slow),
              transform var(--chatbot-transition-slow);
}

/* Position variant for bottom-left */
.chatbot-widget--bottom-left .chatbot-interface {
  right: auto;
  left: 0;
  transform-origin: bottom left;
}

/* Open state */
.chatbot-widget--open .chatbot-interface {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

/* ============================================
   Chat Header
   ============================================ */
.chatbot-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: linear-gradient(135deg, var(--chatbot-bg-dark-gray) 0%, var(--chatbot-bg-medium-gray) 100%);
  border-bottom: 1px solid var(--chatbot-bg-medium-gray);
  flex-shrink: 0;
}

.chatbot-header-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.chatbot-avatar {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--chatbot-primary-color) 0%, var(--chatbot-primary-light) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.chatbot-avatar svg {
  width: 22px;
  height: 22px;
  color: var(--chatbot-text-white);
}

.chatbot-header-text {
  display: flex;
  flex-direction: column;
}

.chatbot-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--chatbot-text-white);
  margin: 0;
}

.chatbot-status {
  font-size: 12px;
  color: #22c55e;
  display: flex;
  align-items: center;
  gap: 6px;
}

.chatbot-status::before {
  content: '';
  width: 8px;
  height: 8px;
  background: #22c55e;
  border-radius: 50%;
  animation: chatbot-status-pulse 2s infinite;
}

@keyframes chatbot-status-pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* Close button */
.chatbot-close-btn {
  width: 32px;
  height: 32px;
  background: var(--chatbot-bg-medium-gray);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--chatbot-transition-fast),
              transform var(--chatbot-transition-fast);
}

.chatbot-close-btn:hover {
  background: var(--chatbot-primary-color);
  transform: rotate(90deg);
}

.chatbot-close-btn svg {
  width: 18px;
  height: 18px;
  color: var(--chatbot-text-white);
}

/* ============================================
   Messages Container
   ============================================ */
.chatbot-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: var(--chatbot-bg-black);
  scroll-behavior: smooth;
}

/* Custom scrollbar */
.chatbot-messages::-webkit-scrollbar {
  width: 6px;
}

.chatbot-messages::-webkit-scrollbar-track {
  background: transparent;
}

.chatbot-messages::-webkit-scrollbar-thumb {
  background: var(--chatbot-bg-medium-gray);
  border-radius: 3px;
}

.chatbot-messages::-webkit-scrollbar-thumb:hover {
  background: var(--chatbot-text-light-gray);
}

/* ============================================
   Message Bubbles
   ============================================ */
.chatbot-message {
  display: flex;
  flex-direction: column;
  max-width: 85%;
  animation: chatbot-message-appear 0.3s ease;
}

@keyframes chatbot-message-appear {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* User messages - right aligned */
.chatbot-message--user {
  align-self: flex-end;
  align-items: flex-end;
}

.chatbot-message--user .chatbot-message-bubble {
  background: linear-gradient(135deg, var(--chatbot-primary-color) 0%, var(--chatbot-primary-light) 100%);
  color: var(--chatbot-user-text);
  border-radius: var(--chatbot-border-radius) var(--chatbot-border-radius) 4px var(--chatbot-border-radius);
}

/* Bot messages - left aligned */
.chatbot-message--bot {
  align-self: flex-start;
  align-items: flex-start;
}

.chatbot-message--bot .chatbot-message-bubble {
  background: var(--chatbot-bot-bg);
  color: var(--chatbot-bot-text);
  border-radius: var(--chatbot-border-radius) var(--chatbot-border-radius) var(--chatbot-border-radius) 4px;
  border: 1px solid var(--chatbot-bg-medium-gray);
}

/* Message bubble base styles */
.chatbot-message-bubble {
  padding: 12px 16px;
  font-size: 14px;
  line-height: 1.6;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

/* Message content formatting */
.chatbot-message-bubble strong {
  font-weight: 600;
  color: inherit;
}

.chatbot-message-bubble em {
  font-style: italic;
}

.chatbot-message-bubble a {
  color: var(--chatbot-primary-light);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.chatbot-message--user .chatbot-message-bubble a {
  color: var(--chatbot-text-white);
}

.chatbot-message-bubble .chatbot-bullet {
  display: block;
  padding-left: 16px;
  position: relative;
  margin: 4px 0;
}

.chatbot-message-bubble .chatbot-bullet::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--chatbot-primary-light);
}

.chatbot-message--user .chatbot-message-bubble .chatbot-bullet::before {
  color: rgba(255, 255, 255, 0.8);
}

/* Message timestamp */
.chatbot-message-time {
  font-size: 11px;
  color: var(--chatbot-text-light-gray);
  margin-top: 4px;
  padding: 0 4px;
}

/* ============================================
   Typing Indicator
   ============================================ */
.chatbot-typing-indicator {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 12px 16px;
  background: var(--chatbot-bot-bg);
  border-radius: var(--chatbot-border-radius) var(--chatbot-border-radius) var(--chatbot-border-radius) 4px;
  border: 1px solid var(--chatbot-bg-medium-gray);
  width: fit-content;
  align-self: flex-start;
}

.chatbot-typing-dot {
  width: 8px;
  height: 8px;
  background: var(--chatbot-text-light-gray);
  border-radius: 50%;
  animation: chatbot-typing-bounce 1.4s infinite ease-in-out both;
}

.chatbot-typing-dot:nth-child(1) {
  animation-delay: -0.32s;
}

.chatbot-typing-dot:nth-child(2) {
  animation-delay: -0.16s;
}

.chatbot-typing-dot:nth-child(3) {
  animation-delay: 0s;
}

@keyframes chatbot-typing-bounce {
  0%, 80%, 100% {
    transform: scale(0.6);
    background: var(--chatbot-text-light-gray);
  }
  40% {
    transform: scale(1);
    background: var(--chatbot-primary-light);
  }
}

/* ============================================
   Input Area
   ============================================ */
.chatbot-input-area {
  padding: 16px 20px;
  background: var(--chatbot-bg-dark-gray);
  border-top: 1px solid var(--chatbot-bg-medium-gray);
  flex-shrink: 0;
}

/* Suggestions */
.chatbot-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.chatbot-suggestions:empty {
  display: none;
  margin-bottom: 0;
}

.chatbot-suggestion-btn {
  padding: 8px 14px;
  background: var(--chatbot-bg-medium-gray);
  border: 1px solid transparent;
  border-radius: 20px;
  color: var(--chatbot-text-white);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--chatbot-transition-fast);
  white-space: nowrap;
}

.chatbot-suggestion-btn:hover {
  background: var(--chatbot-primary-color);
  border-color: var(--chatbot-primary-light);
  transform: translateY(-1px);
}

.chatbot-suggestion-btn:active {
  transform: translateY(0);
}

/* Input container */
.chatbot-input-container {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--chatbot-bg-medium-gray);
  border-radius: var(--chatbot-border-radius);
  padding: 4px 4px 4px 16px;
  border: 1px solid transparent;
  transition: border-color var(--chatbot-transition-fast),
              box-shadow var(--chatbot-transition-fast);
}

.chatbot-input-container:focus-within {
  border-color: var(--chatbot-primary-color);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

/* Text input */
.chatbot-input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--chatbot-text-white);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  padding: 8px 0;
}

.chatbot-input::placeholder {
  color: var(--chatbot-text-light-gray);
}

/* Send button */
.chatbot-send-btn {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--chatbot-primary-color) 0%, var(--chatbot-primary-light) 100%);
  border: none;
  border-radius: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--chatbot-transition-fast),
              box-shadow var(--chatbot-transition-fast);
  flex-shrink: 0;
}

.chatbot-send-btn:hover {
  transform: scale(1.05);
  box-shadow: var(--chatbot-shadow-primary);
}

.chatbot-send-btn:active {
  transform: scale(0.95);
}

.chatbot-send-btn svg {
  width: 18px;
  height: 18px;
  color: var(--chatbot-text-white);
}

/* ============================================
   Responsive Styles - Mobile (max-width: 768px)
   ============================================ */
@media (max-width: 768px) {
  .chatbot-widget {
    --chatbot-widget-width: calc(100vw - 32px);
    --chatbot-widget-height: calc(100vh - 120px);
    --chatbot-button-size: 56px;
  }
  
  .chatbot-widget--bottom-right,
  .chatbot-widget--bottom-left {
    bottom: 16px;
    right: 16px;
    left: auto;
  }
  
  .chatbot-interface {
    position: fixed;
    bottom: 80px;
    right: 16px;
    left: 16px;
    width: auto;
    max-height: calc(100vh - 120px);
    max-height: calc(100dvh - 120px); /* Dynamic viewport height for mobile */
    border-radius: var(--chatbot-border-radius);
  }
  
  .chatbot-widget--bottom-left .chatbot-interface {
    right: 16px;
    left: 16px;
  }
  
  /* Adjust header for mobile */
  .chatbot-header {
    padding: 14px 16px;
  }
  
  .chatbot-avatar {
    width: 36px;
    height: 36px;
  }
  
  .chatbot-avatar svg {
    width: 20px;
    height: 20px;
  }
  
  .chatbot-title {
    font-size: 14px;
  }
  
  /* Adjust messages for mobile */
  .chatbot-messages {
    padding: 16px;
    gap: 12px;
  }
  
  .chatbot-message {
    max-width: 90%;
  }
  
  .chatbot-message-bubble {
    padding: 10px 14px;
    font-size: 14px;
  }
  
  /* Adjust input area for mobile */
  .chatbot-input-area {
    padding: 12px 16px;
  }
  
  .chatbot-suggestions {
    gap: 6px;
    margin-bottom: 10px;
  }
  
  .chatbot-suggestion-btn {
    padding: 6px 12px;
    font-size: 11px;
  }
  
  .chatbot-input-container {
    padding: 2px 2px 2px 14px;
    border-radius: 12px;
  }
  
  .chatbot-input {
    font-size: 16px; /* Prevents zoom on iOS */
    padding: 10px 0;
  }
  
  .chatbot-send-btn {
    width: 44px;
    height: 44px;
    min-width: 44px; /* Touch target minimum */
    min-height: 44px;
  }
  
  /* Floating button touch target */
  .chatbot-floating-btn {
    min-width: 44px;
    min-height: 44px;
  }
}

/* Extra small screens */
@media (max-width: 380px) {
  .chatbot-widget--bottom-right,
  .chatbot-widget--bottom-left {
    bottom: 12px;
    right: 12px;
  }
  
  .chatbot-interface {
    bottom: 76px;
    right: 12px;
    left: 12px;
  }
  
  .chatbot-header {
    padding: 12px 14px;
  }
  
  .chatbot-messages {
    padding: 12px;
  }
  
  .chatbot-input-area {
    padding: 10px 12px;
  }
}

/* ============================================
   Keyboard Visibility Adjustments
   ============================================ */
@media (max-height: 500px) {
  .chatbot-widget {
    --chatbot-widget-height: calc(100vh - 80px);
  }
  
  .chatbot-interface {
    max-height: calc(100vh - 80px);
    max-height: calc(100dvh - 80px);
  }
  
  .chatbot-messages {
    padding: 12px;
  }
}

/* ============================================
   Light Mode Support (if portfolio has light mode)
   ============================================ */
body.light-mode .chatbot-widget {
  --chatbot-bg-black: #ffffff;
  --chatbot-bg-dark: #f5f5f5;
  --chatbot-bg-dark-gray: #e8e8e8;
  --chatbot-bg-medium-gray: #d0d0d0;
  --chatbot-text-light-gray: #666666;
  --chatbot-text-white: #0a0a0a;
  --chatbot-bot-bg: #e8e8e8;
  --chatbot-bot-text: #1a1a1a;
  --chatbot-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --chatbot-shadow-md: 0 4px 20px rgba(0, 0, 0, 0.15);
  --chatbot-shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.2);
}

body.light-mode .chatbot-message--bot .chatbot-message-bubble {
  border-color: #c0c0c0;
}

body.light-mode .chatbot-typing-indicator {
  border-color: #c0c0c0;
}

body.light-mode .chatbot-input-container {
  background: #e0e0e0;
}

body.light-mode .chatbot-suggestion-btn {
  background: #d0d0d0;
  color: #1a1a1a;
}

body.light-mode .chatbot-suggestion-btn:hover {
  background: var(--chatbot-primary-color);
  color: #ffffff;
}

/* ============================================
   Accessibility Enhancements
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  .chatbot-widget,
  .chatbot-widget * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .chatbot-interface {
    border-width: 2px;
  }
  
  .chatbot-message--bot .chatbot-message-bubble {
    border-width: 2px;
  }
  
  .chatbot-input-container:focus-within {
    border-width: 2px;
  }
}

/* Focus visible styles for keyboard navigation */
.chatbot-floating-btn:focus-visible,
.chatbot-close-btn:focus-visible,
.chatbot-send-btn:focus-visible,
.chatbot-suggestion-btn:focus-visible,
.chatbot-input:focus-visible {
  outline: 2px solid var(--chatbot-primary-light);
  outline-offset: 2px;
}

/* ============================================
   Touch Feedback Styles
   ============================================ */

/* Touch active state for buttons */
.chatbot-touch-active {
  transform: scale(0.95) !important;
  opacity: 0.9;
}

/* Ensure touch targets meet minimum 44x44px requirement */
.chatbot-floating-btn,
.chatbot-close-btn,
.chatbot-send-btn,
.chatbot-suggestion-btn {
  min-width: 44px;
  min-height: 44px;
  touch-action: manipulation; /* Disable double-tap zoom */
  -webkit-tap-highlight-color: transparent; /* Remove tap highlight on iOS */
  user-select: none;
  -webkit-user-select: none;
}

/* Touch-friendly input field */
.chatbot-input {
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

/* Improve touch scrolling in messages container */
.chatbot-messages {
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain; /* Prevent scroll chaining */
  touch-action: pan-y;
}

/* Touch-friendly header for swipe gestures */
.chatbot-header {
  touch-action: pan-y;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
}

/* Active states for touch interactions */
.chatbot-floating-btn:active,
.chatbot-floating-btn.chatbot-touch-active {
  transform: scale(0.95);
  box-shadow: 0 2px 10px rgba(99, 102, 241, 0.3);
}

.chatbot-close-btn:active,
.chatbot-close-btn.chatbot-touch-active {
  transform: scale(0.9);
  background: var(--chatbot-primary-dark);
}

.chatbot-send-btn:active,
.chatbot-send-btn.chatbot-touch-active {
  transform: scale(0.95);
  box-shadow: 0 2px 10px rgba(99, 102, 241, 0.3);
}

.chatbot-suggestion-btn:active,
.chatbot-suggestion-btn.chatbot-touch-active {
  transform: scale(0.95);
  background: var(--chatbot-primary-dark);
}

/* ============================================
   Print Styles (hide widget when printing)
   ============================================ */
@media print {
  .chatbot-widget {
    display: none !important;
  }
}

/* ============================================
   Error Message Styles
   ============================================ */
.chatbot-message--error {
  align-self: center;
  max-width: 90%;
  animation: chatbot-error-appear 0.3s ease;
}

.chatbot-message-bubble--error {
  background: rgba(239, 68, 68, 0.15);
  color: #fca5a5;
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--chatbot-border-radius-sm);
  padding: 10px 16px;
  font-size: 13px;
  text-align: center;
}

@keyframes chatbot-error-appear {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Fade out animation for auto-removing errors */
.chatbot-message--error.chatbot-message--fading {
  animation: chatbot-error-fade 0.3s ease forwards;
}

@keyframes chatbot-error-fade {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(-10px);
  }
}

/* ============================================
   Fallback Contact Button Styles
   ============================================ */
.chatbot-fallback-button {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background-color: var(--chatbot-primary-color, #6366f1);
  color: white;
  text-decoration: none;
  border-radius: 50px;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 14px;
  font-weight: 500;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  z-index: 9999;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.chatbot-fallback-button:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
}

.chatbot-fallback-button:active {
  transform: scale(0.98);
}

.chatbot-fallback-button svg {
  flex-shrink: 0;
}

.chatbot-fallback-text {
  white-space: nowrap;
}

/* Mobile responsive fallback button */
@media (max-width: 768px) {
  .chatbot-fallback-button {
    bottom: 16px;
    right: 16px;
    padding: 10px 16px;
    font-size: 13px;
  }
}