/* ========================================
   B1Lite AI Assistant - Chat Overlay CSS
   ======================================== */

/* ========================================
   CSS Custom Properties (Design Tokens)
   ======================================== */
:root {
  /* Primary Colors */
  --ai-primary-color: #0a6ed1;
  --ai-primary-hover: #0854a0;
  --ai-primary-light: #e8f0fe;
  
  /* Background Colors */
  --ai-bg-panel: #ffffff;
  --ai-bg-messages: #f5f6fa;
  --ai-bg-assistant-message: #ffffff;
  --ai-bg-user-message: #0a6ed1;
  --ai-bg-welcome: linear-gradient(180deg, #f8f9fc 0%, #ffffff 100%);
  --ai-bg-error: #fff5f5;
  --ai-bg-chip: #f0f1f5;
  --ai-bg-chip-hover: #e4e6eb;
  
  /* Text Colors */
  --ai-text-primary: #1d1d1d;
  --ai-text-secondary: #6a6a6a;
  --ai-text-tertiary: #a0a0a0;
  --ai-text-user-message: #ffffff;
  --ai-text-assistant-message: #1d1d1d;
  --ai-text-placeholder: #a0a0a0;
  --ai-text-error: #e74c3c;
  
  /* Border Colors */
  --ai-border-light: #e4e6eb;
  --ai-border-medium: #d0d0d0;
  --ai-border-focus: #0a6ed1;
  --ai-border-error: #ffcccc;
  
  /* Status Colors */
  --ai-status-sent: #a0a0a0;
  --ai-status-delivered: #4caf50;
  --ai-status-error: #e74c3c;
  
  /* Spacing */
  --ai-spacing-xs: 4px;
  --ai-spacing-sm: 8px;
  --ai-spacing-md: 12px;
  --ai-spacing-lg: 16px;
  --ai-spacing-xl: 24px;
  
  /* Typography */
  --ai-font-family: "72", "72Full", "Arial", sans-serif;
  --ai-font-size-xs: 11px;
  --ai-font-size-sm: 13px;
  --ai-font-size-md: 14px;
  --ai-font-size-lg: 18px;
  --ai-line-height: 1.5;
  
  /* Border Radius */
  --ai-radius-sm: 8px;
  --ai-radius-md: 12px;
  --ai-radius-lg: 16px;
  --ai-radius-xl: 24px;
  
  /* Shadows */
  --ai-shadow-panel: 0 8px 32px rgba(0, 0, 0, 0.12), 0 2px 8px rgba(0, 0, 0, 0.08);
  --ai-shadow-header: 0 2px 4px rgba(0, 0, 0, 0.1);
  --ai-shadow-message-user: 0 1px 2px rgba(10, 110, 209, 0.2);
  --ai-shadow-message-assistant: 0 1px 2px rgba(0, 0, 0, 0.06);
  --ai-shadow-fab: 0 4px 12px rgba(0, 0, 0, 0.15);
  
  /* Transitions */
  --ai-transition-fast: 0.2s ease;
  --ai-transition-normal: 0.3s ease;
  
  /* Z-Index */
  --ai-z-panel: 1000;
  --ai-z-fab: 999;
  --ai-z-tooltip: 1001;
  
  /* Safe Area (mobile) */
  --ai-safe-area-top: env(safe-area-inset-top, 0px);
  --ai-safe-area-bottom: env(safe-area-inset-bottom, 0px);
}

/* ========================================
   FAB Button (Floating Action Button)
   ======================================== */

.niaFab {
  position: fixed !important;
  bottom: 24px !important;
  right: 24px !important;
  width: 56px !important;
  height: 56px !important;
  min-width: 56px !important;
  min-height: 56px !important;
  border-radius: 50% !important;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15), 0 2px 4px rgba(0, 0, 0, 0.1) !important;
  z-index: 999 !important;
  transition: transform 0.2s ease, box-shadow 0.2s ease !important;
}

.niaFab:hover {
  transform: translateY(-2px) !important;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2), 0 4px 6px rgba(0, 0, 0, 0.1) !important;
}

.niaFab:active {
  transform: translateY(0) scale(0.95) !important;
}

.niaFab .sapMBtnInner {
  width: 56px !important;
  height: 56px !important;
  min-width: 56px !important;
  min-height: 56px !important;
  border-radius: 50% !important;
  padding: 0 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
}

.niaFab .sapUiIcon {
  font-size: 1.5rem !important;
  line-height: 1 !important;
}

/* ========================================
   Chat Overlay Panel
   ======================================== */

.chatOverlayPanel {
  position: fixed !important;
  bottom: 16px !important;
  right: 20px !important;
  width: 380px !important;
  max-width: calc(100vw - 40px) !important;
  height: 600px !important;
  max-height: calc(100vh - 32px) !important;
  background-color: var(--ai-bg-panel) !important;
  border-radius: var(--ai-radius-lg) !important;
  box-shadow: var(--ai-shadow-panel) !important;
  display: flex !important;
  flex-direction: column !important;
  overflow: hidden !important;
  z-index: var(--ai-z-panel) !important;
  border: 1px solid var(--ai-border-light) !important;
}

/* ========================================
   Chat Overlay Header
   ======================================== */

.chatOverlayHeader {
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  padding: var(--ai-spacing-sm) var(--ai-spacing-md) !important;
  background: linear-gradient(135deg, var(--ai-primary-color) 0%, var(--ai-primary-hover) 100%) !important;
  color: var(--ai-text-user-message) !important;
  box-shadow: var(--ai-shadow-header) !important;
  flex-shrink: 0 !important;
  min-height: 56px !important;
  box-sizing: border-box !important;
}

.chatOverlayHeaderLeft {
  display: flex !important;
  align-items: center !important;
  flex: 1 !important;
  min-width: 0 !important;
}

.chatOverlayAvatarImg {
  margin-right: var(--ai-spacing-sm) !important;
  flex-shrink: 0 !important;
}

.chatOverlayAvatarImg .sapUiAvatarImage,
.chatOverlayAvatarImg .sapUiAvatarInitials,
.chatOverlayAvatarImg .sapUiIcon {
  color: var(--ai-text-user-message) !important;
}

.chatOverlayTitleText {
  color: var(--ai-text-user-message) !important;
  font-weight: 600 !important;
  font-size: var(--ai-font-size-md) !important;
  text-shadow: none !important;
}

.chatOverlayStatusText {
  color: rgba(255, 255, 255, 0.85) !important;
  font-size: var(--ai-font-size-xs) !important;
}

/* Online Indicator Dot */
.chatOverlayOnlineIndicator {
  width: 8px !important;
  height: 8px !important;
  background-color: #4caf50 !important;
  border-radius: 50% !important;
  margin-right: 4px !important;
  display: inline-block !important;
  flex-shrink: 0 !important;
}

.chatOverlayCloseBtn {
  color: var(--ai-text-user-message) !important;
  min-width: 36px !important;
  min-height: 36px !important;
  width: 36px !important;
  height: 36px !important;
  border-radius: 50% !important;
}

.chatOverlayCloseBtn .sapMBtnInner {
  min-width: 36px !important;
  min-height: 36px !important;
  width: 36px !important;
  height: 36px !important;
  border-radius: 50% !important;
  background: transparent !important;
  border: none !important;
}

.chatOverlayCloseBtn .sapUiIcon {
  color: var(--ai-text-user-message) !important;
  font-size: 1rem !important;
}

.chatOverlayCloseBtn:hover .sapMBtnInner {
  background: rgba(255, 255, 255, 0.15) !important;
}

/* ========================================
   Messages Area
   ======================================== */

.chatOverlayMessages {
  flex: 1 !important;
  overflow-y: auto !important;
  overflow-x: hidden !important;
  padding: var(--ai-spacing-sm) !important;
  background-color: var(--ai-bg-messages) !important;
  min-height: 0 !important;
}

.chatOverlayMessageList {
  display: flex !important;
  flex-direction: column !important;
  gap: var(--ai-spacing-sm) !important;
  min-height: 100% !important;
  width: 100% !important;
}

/* ========================================
   Typing Indicator
   ======================================== */

.chatOverlayTypingIndicator {
  padding: var(--ai-spacing-sm) var(--ai-spacing-md) !important;
  background-color: var(--ai-bg-messages) !important;
  flex-shrink: 0 !important;
  border-top: 1px solid var(--ai-border-light) !important;
}

.typingDotsContainer {
  display: flex !important;
  align-items: center !important;
  gap: 4px !important;
}

.typingDot {
  color: var(--ai-primary-color) !important;
  animation: typingBounce 1.4s infinite ease-in-out both !important;
}

.typingDot.dot1 {
  animation-delay: -0.32s !important;
}

.typingDot.dot2 {
  animation-delay: -0.16s !important;
}

@keyframes typingBounce {
  0%, 80%, 100% {
    transform: scale(0);
    opacity: 0.5;
  }
  40% {
    transform: scale(1);
    opacity: 1;
  }
}

.typingText {
  color: var(--ai-text-secondary) !important;
  font-size: var(--ai-font-size-sm) !important;
}

/* ========================================
   Quick Actions
   ======================================== */

.chatOverlayQuickActions {
  padding: var(--ai-spacing-xs) var(--ai-spacing-sm) !important;
  background-color: var(--ai-bg-messages) !important;
  gap: var(--ai-spacing-xs) !important;
  flex-shrink: 0 !important;
  border-top: 1px solid var(--ai-border-light) !important;
}

/* ========================================
   Scroll to Bottom Button
   ======================================== */

.chatOverlayScrollBtn {
  position: absolute !important;
  bottom: 80px !important;
  right: 20px !important;
  width: 40px !important;
  height: 40px !important;
  border-radius: 50% !important;
  background-color: var(--ai-bg-panel) !important;
  box-shadow: var(--ai-shadow-fab) !important;
  z-index: 10 !important;
  border: 1px solid var(--ai-border-light) !important;
}

.chatOverlayScrollBtn .sapMBtnInner {
  min-width: 40px !important;
  min-height: 40px !important;
  width: 40px !important;
  height: 40px !important;
  border-radius: 50% !important;
  background: var(--ai-bg-panel) !important;
  border: none !important;
}

.chatOverlayScrollBtn:hover .sapMBtnInner {
  background-color: var(--ai-bg-chip-hover) !important;
}

/* ========================================
   Footer / Input Area
   ======================================== */

.chatOverlayFooter {
  padding: var(--ai-spacing-sm) var(--ai-spacing-md) !important;
  padding-bottom: calc(var(--ai-spacing-sm) + var(--ai-safe-area-bottom)) !important;
  background-color: var(--ai-bg-panel) !important;
  border-top: 1px solid var(--ai-border-light) !important;
  flex-shrink: 0 !important;
  box-sizing: border-box !important;
}

/* Input Wrapper */
.chatOverlayInputWrapper {
    display: flex !important;
    align-items: center !important;
    width: 100% !important;
    background-color: var(--ai-bg-messages) !important;
    border-radius: var(--ai-radius-xl) !important;
    padding: 4px 4px 4px 12px !important;
    border: 1px solid var(--ai-border-light) !important;
    transition: border-color var(--ai-transition-fast), box-shadow var(--ai-transition-fast) !important;
    box-sizing: border-box !important;
}

.chatOverlayInputWrapper:focus-within {
  border-color: var(--ai-border-focus) !important;
  box-shadow: 0 0 0 2px rgba(10, 110, 209, 0.15) !important;
}

/* TextArea override */
.chatOverlayInputField {
  flex: 1 !important;
  min-width: 0 !important;
  width: auto !important;
  border: none !important;
  background: transparent !important;
  resize: none !important;
  outline: none !important;
  box-shadow: none !important;
  padding: 0 !important;
  margin: 0 !important;
  min-height: 36px !important;
  max-height: 100px !important;
  font-family: var(--ai-font-family) !important;
  font-size: var(--ai-font-size-sm) !important;
  color: var(--ai-text-primary) !important;
}

.chatOverlayInputField::placeholder {
  color: var(--ai-text-placeholder) !important;
  font-size: var(--ai-font-size-sm) !important;
}

.chatOverlayInputField .sapMTextAreaInner {
  border: none !important;
  background: transparent !important;
  resize: none !important;
  outline: none !important;
  box-shadow: none !important;
  padding: 8px 0 !important;
  min-height: 36px !important;
  font-family: var(--ai-font-family) !important;
  font-size: var(--ai-font-size-sm) !important;
  width: 100% !important;
  box-sizing: border-box !important;
}

.chatOverlayInputField .sapMTextAreaInner:focus {
  outline: none !important;
  box-shadow: none !important;
}

/* Garantir que o wrapper do SAPUI5 respeite o flex */
.chatOverlayInputWrapper .sapMTextArea {
  flex: 1 !important;
  min-width: 0 !important;
  width: 100% !important;
}

/* Send Button */
.chatOverlaySendBtn {
  min-width: 36px !important;
  min-height: 36px !important;
  width: 36px !important;
  height: 36px !important;
  border-radius: 50% !important;
  margin-left: var(--ai-spacing-xs) !important;
  flex-shrink: 0 !important;
  align-self: flex-end !important;
  margin-bottom: 6px !important;
}

.chatOverlaySendBtn .sapMBtnInner {
  min-width: 36px !important;
  min-height: 36px !important;
  width: 36px !important;
  height: 36px !important;
  border-radius: 50% !important;
  padding: 0 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
}

.chatOverlaySendBtn .sapUiIcon {
  font-size: 1rem !important;
  line-height: 1 !important;
}

/* ========================================
   Empty State
   ======================================== */

.chatOverlayEmpty {
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  justify-content: center !important;
  padding: var(--ai-spacing-xl) !important;
  text-align: center !important;
  flex: 1 !important;
  background: var(--ai-bg-welcome) !important;
}

.chatOverlayEmptyIcon {
  font-size: 3rem !important;
  margin-bottom: var(--ai-spacing-md) !important;
}

.chatOverlayEmptyTitle {
  font-size: var(--ai-font-size-lg) !important;
  font-weight: 600 !important;
  color: var(--ai-text-primary) !important;
  margin-bottom: var(--ai-spacing-sm) !important;
}

.chatOverlayEmptyText {
  font-size: var(--ai-font-size-sm) !important;
  color: var(--ai-text-secondary) !important;
  line-height: var(--ai-line-height) !important;
  max-width: 280px !important;
}

/* ========================================
   Error State
   ======================================== */

.chatOverlayError {
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  padding: var(--ai-spacing-lg) !important;
  margin: var(--ai-spacing-md) !important;
  background-color: var(--ai-bg-error) !important;
  border: 1px solid var(--ai-border-error) !important;
  border-radius: var(--ai-radius-md) !important;
  text-align: center !important;
}

.chatOverlayErrorIcon {
  font-size: 2rem !important;
  margin-bottom: var(--ai-spacing-sm) !important;
}

.chatOverlayErrorTitle {
  font-size: var(--ai-font-size-md) !important;
  font-weight: 600 !important;
  color: var(--ai-text-error) !important;
  margin-bottom: var(--ai-spacing-xs) !important;
}

.chatOverlayErrorText {
  font-size: var(--ai-font-size-sm) !important;
  color: var(--ai-text-secondary) !important;
  margin-bottom: var(--ai-spacing-md) !important;
}

.chatOverlayRetryBtn {
  padding: var(--ai-spacing-sm) var(--ai-spacing-md) !important;
  background-color: var(--ai-primary-color) !important;
  color: var(--ai-text-user-message) !important;
  border: none !important;
  border-radius: var(--ai-radius-md) !important;
  font-size: var(--ai-font-size-sm) !important;
  font-weight: 500 !important;
  cursor: pointer !important;
  transition: background-color var(--ai-transition-fast) !important;
}

.chatOverlayRetryBtn:hover {
  background-color: var(--ai-primary-hover) !important;
}

/* ========================================
   Message Bubbles
   ======================================== */

.chatBubbleRow {
  display: flex !important;
  justify-content: flex-start !important;
  margin-bottom: var(--ai-spacing-xs) !important;
  animation: messageAppear 0.3s ease-out !important;
}

.chatBubbleRowMe {
  display: flex !important;
  justify-content: flex-end !important;
  margin-bottom: var(--ai-spacing-xs) !important;
  animation: messageAppear 0.3s ease-out !important;
}

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

.chatBubble {
  max-width: 80% !important;
  background-color: var(--ai-bg-assistant-message) !important;
  color: var(--ai-text-assistant-message) !important;
  padding: var(--ai-spacing-sm) var(--ai-spacing-md) !important;
  border-radius: var(--ai-radius-md) !important;
  border-bottom-left-radius: var(--ai-radius-sm) !important;
  box-shadow: var(--ai-shadow-message-assistant) !important;
  word-wrap: break-word !important;
  word-break: break-word !important;
}

.chatBubbleMe {
  max-width: 80% !important;
  background-color: var(--ai-bg-user-message) !important;
  color: var(--ai-text-user-message) !important;
  padding: var(--ai-spacing-sm) var(--ai-spacing-md) !important;
  border-radius: var(--ai-radius-md) !important;
  border-bottom-right-radius: var(--ai-radius-sm) !important;
  box-shadow: var(--ai-shadow-message-user) !important;
  word-wrap: break-word !important;
  word-break: break-word !important;
}

.chatBubbleSender {
  font-size: var(--ai-font-size-xs) !important;
  font-weight: 600 !important;
  color: var(--ai-primary-color) !important;
  margin-bottom: 2px !important;
}

.chatBubbleText {
  font-size: var(--ai-font-size-sm) !important;
  line-height: var(--ai-line-height) !important;
  word-break: break-word !important;
}

.chatBubbleText a {
  color: inherit !important;
  text-decoration: underline !important;
}

.chatBubbleMe .chatBubbleText a {
  color: rgba(255, 255, 255, 0.9) !important;
}

.chatBubbleFooter {
  display: flex !important;
  align-items: center !important;
  justify-content: flex-end !important;
  margin-top: 4px !important;
  gap: 4px !important;
}

.chatBubbleTime {
  font-size: var(--ai-font-size-xs) !important;
  color: var(--ai-text-tertiary) !important;
}

.chatBubbleMe .chatBubbleTime {
  color: rgba(255, 255, 255, 0.7) !important;
}

.chatBubbleStatus {
  font-size: var(--ai-font-size-xs) !important;
}

.chatBubbleStatus.sent {
  color: var(--ai-status-sent) !important;
}

.chatBubbleStatus.delivered {
  color: var(--ai-status-delivered) !important;
}

.chatBubbleStatus.error {
  color: var(--ai-status-error) !important;
}

.chatBubbleStreaming {
  display: inline-block !important;
  margin-left: 4px !important;
  animation: streamingPulse 1.5s infinite !important;
}

@keyframes streamingPulse {
  0%, 100% {
    opacity: 0.4;
  }
  50% {
    opacity: 1;
  }
}

/* ========================================
   Suggestion Chips
   ======================================== */

.chatSuggestionChip {
  display: inline-flex !important;
  align-items: center !important;
  padding: var(--ai-spacing-xs) var(--ai-spacing-sm) !important;
  background-color: var(--ai-bg-chip) !important;
  border: 1px solid var(--ai-border-light) !important;
  border-radius: var(--ai-radius-xl) !important;
  font-size: var(--ai-font-size-sm) !important;
  color: var(--ai-text-primary) !important;
  cursor: pointer !important;
  transition: all var(--ai-transition-fast) !important;
  white-space: nowrap !important;
  margin: 2px !important;
}

.chatSuggestionChip:hover {
  background-color: var(--ai-bg-chip-hover) !important;
  border-color: var(--ai-border-medium) !important;
}

.chatSuggestionChip:active {
  transform: scale(0.95) !important;
}

/* ========================================
   Scrollbar Styling
   ======================================== */

.chatOverlayMessages::-webkit-scrollbar {
  width: 6px !important;
}

.chatOverlayMessages::-webkit-scrollbar-track {
  background: transparent !important;
}

.chatOverlayMessages::-webkit-scrollbar-thumb {
  background-color: var(--ai-border-medium) !important;
  border-radius: 3px !important;
}

.chatOverlayMessages::-webkit-scrollbar-thumb:hover {
  background-color: var(--ai-text-tertiary) !important;
}

/* ========================================
   Mobile Responsive
   ======================================== */

@media (max-width: 640px) {
  .chatOverlayPanel {
    position: fixed !important;
    bottom: 0 !important;
    right: 0 !important;
    left: 0 !important;
    width: 100% !important;
    max-width: 100% !important;
    height: 100% !important;
    max-height: 100% !important;
    border-radius: 0 !important;
    border-top-left-radius: var(--ai-radius-lg) !important;
    border-top-right-radius: var(--ai-radius-lg) !important;
  }
  
  .chatOverlayHeader {
    padding-top: calc(var(--ai-spacing-sm) + var(--ai-safe-area-top)) !important;
  }
  
  .chatOverlayFooter {
    padding-bottom: calc(var(--ai-spacing-sm) + var(--ai-safe-area-bottom)) !important;
  }
  
  .chatBubble,
  .chatBubbleMe {
    max-width: 85% !important;
  }
}

/* ========================================
   Reduced Motion
   ======================================== */

@media (prefers-reduced-motion: reduce) {
  .chatBubbleRow,
  .chatBubbleRowMe,
  .typingDot {
    animation: none !important;
  }
  
  .chatOverlayMessages {
    scroll-behavior: auto !important;
  }
  
  .chatSuggestionChip:active {
    transform: none !important;
  }
}

/* ========================================
   Focus Styles
   ======================================== */

.chatOverlayCloseBtn:focus-visible,
.chatOverlaySendBtn:focus-visible,
.chatSuggestionChip:focus-visible,
.chatOverlayRetryBtn:focus-visible {
  outline: 2px solid var(--ai-primary-color) !important;
  outline-offset: 2px !important;
}

/* ========================================
   High Contrast Mode
   ======================================== */

@media (prefers-contrast: high) {
  .chatBubble,
  .chatBubbleMe {
    border-width: 2px !important;
  }
  
  .chatOverlayInputWrapper:focus-within {
    box-shadow: 0 0 0 3px var(--ai-primary-color) !important;
  }
}