/* ═══════════════════════════════════════════════════════════
   AI Chat Widget — Premium Glassmorphism Theme
   
   Embeddable CSS for the floating chat widget.
   All properties are scoped under #ai-chat-widget to avoid
   conflicts with the host page's styles.
   
   Override any color via CSS custom properties on the
   script tag's data-accent-color attribute.
   ═══════════════════════════════════════════════════════════ */

/* ─── CSS Custom Properties ─────────────────────────────── */
#ai-chat-widget {
  --acw-accent: #6366f1;
  --acw-accent-hover: #818cf8;
  --acw-accent-glow: rgba(99, 102, 241, 0.35);

  /* Dark theme — Tacanni Executive */
  --acw-bg-primary: #111113;
  --acw-bg-secondary: #1a1a1e;
  --acw-bg-tertiary: #242428;
  --acw-bg-glass: rgba(200, 165, 92, 0.04);
  --acw-bg-glass-hover: rgba(200, 165, 92, 0.08);

  --acw-border: rgba(200, 165, 92, 0.15);
  --acw-border-accent: rgba(200, 165, 92, 0.3);

  --acw-text-primary: rgba(255, 255, 255, 0.95);
  --acw-text-secondary: rgba(255, 255, 255, 0.6);
  --acw-text-muted: rgba(255, 255, 255, 0.35);

  --acw-user-bubble: var(--acw-accent);
  --acw-user-text: #111113;
  --acw-bot-bubble: var(--acw-bg-tertiary);
  --acw-bot-text: var(--acw-text-primary);

  --acw-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --acw-shadow-md: 0 8px 32px rgba(0, 0, 0, 0.5);
  --acw-shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.6);
  --acw-shadow-glow: 0 0 30px var(--acw-accent-glow);

  --acw-radius-sm: 8px;
  --acw-radius-md: 16px;
  --acw-radius-lg: 24px;
  --acw-radius-full: 9999px;

  --acw-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;

  --acw-transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --acw-transition-smooth: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --acw-transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  --acw-panel-width: 380px;
  --acw-panel-max-height: 520px;
  --acw-bubble-size: 56px;

  font-family: var(--acw-font);
  font-size: 14px;
  line-height: 1.5;
  box-sizing: border-box;
  z-index: 999999;
  position: fixed;
}

/* Light theme override */
#ai-chat-widget[data-theme="light"] {
  --acw-bg-primary: rgba(255, 255, 255, 0.95);
  --acw-bg-secondary: rgba(245, 245, 250, 0.9);
  --acw-bg-tertiary: rgba(235, 235, 245, 0.85);
  --acw-bg-glass: rgba(0, 0, 0, 0.03);
  --acw-bg-glass-hover: rgba(0, 0, 0, 0.06);

  --acw-border: rgba(0, 0, 0, 0.08);
  --acw-border-accent: rgba(99, 102, 241, 0.2);

  --acw-text-primary: rgba(0, 0, 0, 0.9);
  --acw-text-secondary: rgba(0, 0, 0, 0.55);
  --acw-text-muted: rgba(0, 0, 0, 0.3);

  --acw-bot-bubble: var(--acw-bg-secondary);
  --acw-bot-text: var(--acw-text-primary);

  --acw-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --acw-shadow-md: 0 8px 32px rgba(0, 0, 0, 0.12);
  --acw-shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.16);
}

/* ─── Reset within widget ───────────────────────────────── */
#ai-chat-widget *,
#ai-chat-widget *::before,
#ai-chat-widget *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ─── Position Variants ─────────────────────────────────── */
#ai-chat-widget[data-position="bottom-right"] {
  bottom: 24px;
  right: 24px;
}

#ai-chat-widget[data-position="bottom-left"] {
  bottom: 24px;
  left: 24px;
}

/* ─── Chat Bubble (FAB) ─────────────────────────────────── */
.acw-bubble {
  width: var(--acw-bubble-size);
  height: var(--acw-bubble-size);
  border-radius: var(--acw-radius-full);
  background: linear-gradient(135deg, var(--acw-accent), var(--acw-accent-hover));
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--acw-shadow-md), var(--acw-shadow-glow);
  transition: transform var(--acw-transition-spring),
              box-shadow var(--acw-transition-smooth);
  position: relative;
  outline: none;
}

.acw-bubble:hover {
  transform: scale(1.08);
  box-shadow: var(--acw-shadow-lg), 0 0 60px var(--acw-accent-glow);
}

.acw-bubble:active {
  transform: scale(0.95);
}

.acw-bubble svg {
  width: 24px;
  height: 24px;
  fill: #111113;
  transition: transform var(--acw-transition-smooth),
              opacity var(--acw-transition-fast);
}

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

.acw-bubble[data-open="true"] .acw-icon-chat {
  opacity: 0;
  transform: rotate(90deg) scale(0.5);
}

.acw-bubble[data-open="true"] .acw-icon-close {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

/* Pulse animation */
.acw-bubble::before {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: var(--acw-radius-full);
  background: var(--acw-accent);
  opacity: 0;
  animation: acw-pulse 3s ease-in-out infinite;
  z-index: -1;
}

.acw-bubble[data-open="true"]::before {
  animation: none;
  opacity: 0;
}

@keyframes acw-pulse {
  0%, 100% {
    opacity: 0;
    transform: scale(1);
  }
  50% {
    opacity: 0.15;
    transform: scale(1.3);
  }
}

/* Unread badge */
.acw-badge {
  position: absolute;
  top: -2px;
  right: -2px;
  width: 18px;
  height: 18px;
  background: #ef4444;
  border-radius: var(--acw-radius-full);
  border: 2px solid var(--acw-bg-primary);
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
  color: white;
}

.acw-badge[data-visible="true"] {
  display: flex;
}

/* ─── Chat Panel ────────────────────────────────────────── */
.acw-panel {
  position: absolute;
  bottom: calc(var(--acw-bubble-size) + 16px);
  width: var(--acw-panel-width);
  max-height: var(--acw-panel-max-height);
  background: var(--acw-bg-primary);
  border: 1px solid var(--acw-border);
  border-radius: var(--acw-radius-md);
  box-shadow: var(--acw-shadow-lg), 0 0 1px rgba(200, 165, 92, 0.2);
  display: flex;
  flex-direction: column;
  overflow: hidden;

  /* Animation */
  opacity: 0;
  transform: translateY(20px) scale(0.95);
  pointer-events: none;
  transition: opacity var(--acw-transition-smooth),
              transform var(--acw-transition-spring);
}

/* Position alignment */
#ai-chat-widget[data-position="bottom-right"] .acw-panel {
  right: 0;
}

#ai-chat-widget[data-position="bottom-left"] .acw-panel {
  left: 0;
}

.acw-panel[data-open="true"] {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: all;
}

/* ─── Panel Header ──────────────────────────────────────── */
.acw-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--acw-border);
  background: var(--acw-bg-secondary);
}

.acw-header-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--acw-radius-full);
  background: linear-gradient(135deg, var(--acw-accent), var(--acw-accent-hover));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.acw-header-avatar img {
  width: 100%;
  height: 100%;
  border-radius: var(--acw-radius-full);
  object-fit: cover;
}

.acw-header-avatar svg {
  width: 20px;
  height: 20px;
  fill: white;
}

.acw-header-info {
  flex: 1;
  min-width: 0;
}

.acw-header-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--acw-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.acw-header-status {
  font-size: 12px;
  color: var(--acw-text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.acw-header-status::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: var(--acw-radius-full);
  background: #22c55e;
  flex-shrink: 0;
}

.acw-header-actions {
  display: flex;
  gap: 4px;
}

.acw-header-btn {
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  color: var(--acw-text-secondary);
  border-radius: var(--acw-radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--acw-transition-fast),
              color var(--acw-transition-fast);
}

.acw-header-btn:hover {
  background: var(--acw-bg-glass-hover);
  color: var(--acw-text-primary);
}

.acw-header-btn svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* ─── Messages Area ─────────────────────────────────────── */
.acw-messages {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 180px;
  max-height: calc(var(--acw-panel-max-height) - 130px);
  scroll-behavior: smooth;
}

/* Custom scrollbar */
.acw-messages::-webkit-scrollbar {
  width: 4px;
}

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

.acw-messages::-webkit-scrollbar-thumb {
  background: var(--acw-border);
  border-radius: var(--acw-radius-full);
}

.acw-messages::-webkit-scrollbar-thumb:hover {
  background: var(--acw-text-muted);
}

/* ─── Message Bubbles ───────────────────────────────────── */
.acw-message {
  display: flex;
  flex-direction: column;
  max-width: 85%;
  animation: acw-message-in 400ms cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

@keyframes acw-message-in {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.acw-message--user {
  align-self: flex-end;
  align-items: flex-end;
}

.acw-message--bot {
  align-self: flex-start;
  align-items: flex-start;
}

.acw-message-content {
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 13.5px;
  line-height: 1.5;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.acw-message--user .acw-message-content {
  background: var(--acw-accent);
  color: var(--acw-user-text);
  border-bottom-right-radius: 4px;
}

.acw-message--bot .acw-message-content {
  background: var(--acw-bg-secondary);
  color: var(--acw-bot-text);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom-left-radius: 4px;
}

.acw-message-time {
  font-size: 11px;
  color: var(--acw-text-muted);
  margin-top: 4px;
  padding: 0 4px;
}

/* ─── Markdown in Messages ──────────────────────────────── */
.acw-message-content p {
  margin: 0 0 8px 0;
}

.acw-message-content p:last-child {
  margin-bottom: 0;
}

.acw-message-content strong {
  font-weight: 600;
}

.acw-message-content em {
  font-style: italic;
}

.acw-message-content a {
  color: var(--acw-accent-hover);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.acw-message--user .acw-message-content a {
  color: rgba(255, 255, 255, 0.9);
}

.acw-message-content code {
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 12.5px;
  background: rgba(0, 0, 0, 0.2);
  padding: 2px 6px;
  border-radius: 4px;
}

.acw-message--user .acw-message-content code {
  background: rgba(255, 255, 255, 0.15);
}

.acw-message-content pre {
  margin: 8px 0;
  background: rgba(0, 0, 0, 0.3);
  border-radius: var(--acw-radius-sm);
  padding: 12px;
  overflow-x: auto;
  position: relative;
}

.acw-message-content pre code {
  background: none;
  padding: 0;
  font-size: 12px;
  line-height: 1.5;
}

.acw-copy-btn {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 28px;
  height: 28px;
  border: none;
  background: var(--acw-bg-glass-hover);
  color: var(--acw-text-secondary);
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--acw-transition-fast);
}

.acw-message-content pre:hover .acw-copy-btn {
  opacity: 1;
}

.acw-copy-btn:hover {
  background: var(--acw-bg-tertiary);
  color: var(--acw-text-primary);
}

.acw-copy-btn svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
}

.acw-message-content ul,
.acw-message-content ol {
  margin: 4px 0;
  padding-left: 20px;
}

.acw-message-content li {
  margin: 2px 0;
}

/* ─── Typing Indicator ──────────────────────────────────── */
.acw-typing {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 12px 16px;
  background: var(--acw-bot-bubble);
  border: 1px solid var(--acw-border);
  border-radius: var(--acw-radius-md);
  border-bottom-left-radius: var(--acw-radius-sm);
  align-self: flex-start;
  animation: acw-message-in 400ms cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

.acw-typing-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--acw-radius-full);
  background: var(--acw-text-muted);
  animation: acw-typing-bounce 1.4s ease-in-out infinite both;
}

.acw-typing-dot:nth-child(1) { animation-delay: 0ms; }
.acw-typing-dot:nth-child(2) { animation-delay: 160ms; }
.acw-typing-dot:nth-child(3) { animation-delay: 320ms; }

@keyframes acw-typing-bounce {
  0%, 80%, 100% {
    transform: scale(0.6);
    opacity: 0.4;
  }
  40% {
    transform: scale(1);
    opacity: 1;
  }
}

/* ─── Input Area ────────────────────────────────────────── */
.acw-input-area {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 10px 14px;
  border-top: 1px solid var(--acw-border);
  background: var(--acw-bg-secondary);
}

.acw-input-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  background: var(--acw-bg-secondary);
  border: 1px solid var(--acw-border);
  border-radius: var(--acw-radius-md);
  padding: 0 12px;
  transition: border-color var(--acw-transition-fast),
              box-shadow var(--acw-transition-fast);
}

.acw-input-wrap:focus-within {
  border-color: var(--acw-accent);
  box-shadow: 0 0 0 3px var(--acw-accent-glow);
}

.acw-input {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--acw-text-primary);
  font-family: var(--acw-font);
  font-size: 14px;
  line-height: 1.5;
  padding: 10px 0;
  outline: none;
  resize: none;
  max-height: 120px;
  min-height: 20px;
}

.acw-input::placeholder {
  color: var(--acw-text-muted);
}

.acw-send-btn {
  width: 36px;
  height: 36px;
  border: none;
  background: var(--acw-accent);
  color: #111113;
  border-radius: var(--acw-radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--acw-transition-fast),
              opacity var(--acw-transition-fast),
              box-shadow var(--acw-transition-fast);
}

.acw-send-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 12px var(--acw-accent-glow);
}

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

.acw-send-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.acw-send-btn svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* ─── Powered By Footer ─────────────────────────────────── */
.acw-footer {
  text-align: center;
  padding: 5px 14px 8px;
  font-size: 9px;
  color: var(--acw-text-muted);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* ─── Welcome Message ───────────────────────────────────── */
.acw-welcome {
  text-align: center;
  padding: 20px 16px 8px;
}

.acw-welcome-icon {
  width: 44px;
  height: 44px;
  margin: 0 auto 10px;
  border-radius: var(--acw-radius-full);
  background: var(--acw-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 12px var(--acw-accent-glow);
}

.acw-welcome-icon svg {
  width: 22px;
  height: 22px;
  fill: #111113;
}

.acw-welcome h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--acw-accent);
  margin-bottom: 4px;
  letter-spacing: 0.02em;
}

.acw-welcome p {
  font-size: 13px;
  color: var(--acw-text-secondary);
  line-height: 1.45;
}

/* ─── Mobile Responsive ─────────────────────────────────── */
@media (max-width: 480px) {
  #ai-chat-widget {
    bottom: 16px !important;
    right: 16px !important;
    left: auto !important;
  }

  #ai-chat-widget[data-position="bottom-left"] {
    left: 16px !important;
    right: auto !important;
  }

  .acw-panel {
    position: fixed;
    bottom: 80px !important;
    right: 16px !important;
    left: 16px !important;
    width: auto;
    max-height: calc(100vh - 120px);
    max-height: calc(100dvh - 120px);
    border-radius: var(--acw-radius-md);
  }

  .acw-messages {
    max-height: calc(100vh - 240px);
    max-height: calc(100dvh - 240px);
  }

  .acw-bubble {
    --acw-bubble-size: 52px;
  }
}

/* ─── Reduced Motion ────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  #ai-chat-widget * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}