/**
 * OpenAce Embed Widget — Self-Contained CSS
 * No framework dependencies. Scoped under .ace-widget to avoid host conflicts.
 *
 * Supports 3 display modes:
 *   .ace-widget (default)      — FAB floating circle
 *   .ace-widget.ace-button-mode — Pill button placed anywhere
 *   .ace-widget.ace-inline      — Embedded panel (no floating)
 */

/* ── Reset (scoped) ── */
.ace-widget *,
.ace-widget *::before,
.ace-widget *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ── Variables ── */
.ace-widget {
  --ace-primary: #6366f1;
  --ace-primary-hover: #4f46e5;
  --ace-cyan: #22d3ee;
  --ace-bg: #ffffff;
  --ace-bg-secondary: #f8fafc;
  --ace-bg-message-user: #6366f1;
  --ace-bg-message-ace: #f1f5f9;
  --ace-text: #1e293b;
  --ace-text-secondary: #64748b;
  --ace-text-on-primary: #ffffff;
  --ace-border: #e2e8f0;
  --ace-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  --ace-shadow-button: 0 4px 16px rgba(99, 102, 241, 0.4);
  --ace-radius: 12px;
  --ace-radius-sm: 8px;
  --ace-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --ace-font-size: 14px;
  --ace-transition: 0.2s ease;
  --ace-widget-width: 380px;
  --ace-widget-height: 560px;

  font-family: var(--ace-font);
  font-size: var(--ace-font-size);
  line-height: 1.5;
  color: var(--ace-text);
  z-index: 99999;
}

/* ── Dark Theme ── */
.ace-widget.ace-dark {
  --ace-bg: #1e1e2e;
  --ace-bg-secondary: #2a2a3e;
  --ace-bg-message-ace: #2a2a3e;
  --ace-text: #e2e8f0;
  --ace-text-secondary: #94a3b8;
  --ace-border: #334155;
  --ace-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}


/* ═══════════════════════════════════════════════════════
   MODE 1: FAB (Floating Action Button) — DEFAULT
   ═══════════════════════════════════════════════════════ */

.ace-widget-container {
  position: fixed;
  z-index: 99999;
}

.ace-widget-container.ace-bottom-right {
  bottom: 20px;
  right: 20px;
}

.ace-widget-container.ace-bottom-left {
  bottom: 20px;
  left: 20px;
}

/* ── FAB Button ── */
.ace-fab {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  border: none;
  background: var(--ace-primary);
  color: var(--ace-text-on-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--ace-shadow-button);
  transition: transform var(--ace-transition), box-shadow var(--ace-transition);
  position: relative;
  overflow: hidden;
}

.ace-fab::before {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: var(--ace-primary);
  opacity: 0;
  animation: ace-pulse 3s ease-in-out infinite;
  z-index: -1;
}

@keyframes ace-pulse {
  0%, 100% { transform: scale(1); opacity: 0; }
  50% { transform: scale(1.15); opacity: 0.3; }
}

.ace-fab:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 24px rgba(99, 102, 241, 0.5);
}

.ace-fab:hover::before {
  animation: none;
  opacity: 0;
}

.ace-fab:active {
  transform: scale(0.95);
}

.ace-fab-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease;
}

.ace-fab.ace-open .ace-fab-inner {
  transform: rotate(180deg);
}

.ace-fab svg {
  transition: transform var(--ace-transition);
}

/* Unread badge */
.ace-fab-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #ef4444;
  color: white;
  font-size: 11px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--ace-bg);
}


/* ═══════════════════════════════════════════════════════
   MODE 2: BUTTON — Pill button for headers/sidebars
   ═══════════════════════════════════════════════════════ */

.ace-button-mode {
  position: relative;
  display: inline-flex;
}

.ace-trigger-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: var(--ace-primary);
  color: var(--ace-text-on-primary);
  border: none;
  border-radius: 24px;
  font-size: 14px;
  font-weight: 600;
  font-family: var(--ace-font);
  cursor: pointer;
  transition: background var(--ace-transition), transform var(--ace-transition), box-shadow var(--ace-transition);
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.25);
  white-space: nowrap;
}

.ace-trigger-btn:hover {
  background: var(--ace-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
}

.ace-trigger-btn:active {
  transform: translateY(0);
}

.ace-trigger-btn svg {
  flex-shrink: 0;
}

/* Popover positioning for button mode */
.ace-popover-anchor {
  position: absolute;
  top: calc(100% + 8px);
  z-index: 99999;
}

.ace-popover-anchor.ace-bottom-right {
  right: 0;
}

.ace-popover-anchor.ace-bottom-left {
  left: 0;
}

.ace-popover-window {
  position: relative !important;
  bottom: auto !important;
}


/* ═══════════════════════════════════════════════════════
   MODE 3: INLINE — Embedded panel
   ═══════════════════════════════════════════════════════ */

.ace-inline {
  width: 100%;
  height: 100%;
}

.ace-inline-container {
  width: 100%;
  height: 100%;
}

.ace-inline-panel {
  position: relative !important;
  bottom: auto !important;
  width: 100% !important;
  height: 100% !important;
  max-height: none !important;
  border-radius: var(--ace-radius);
  transform: none !important;
}


/* ═══════════════════════════════════════════════════════
   SHARED — Chat Window
   ═══════════════════════════════════════════════════════ */

.ace-chat-window {
  position: absolute;
  bottom: 72px;
  width: var(--ace-widget-width);
  height: var(--ace-widget-height);
  max-height: calc(100vh - 120px);
  background: var(--ace-bg);
  border-radius: var(--ace-radius);
  box-shadow: var(--ace-shadow);
  border: 1px solid var(--ace-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  transform: translateY(16px) scale(0.95);
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.ace-bottom-right .ace-chat-window {
  right: 0;
}

.ace-bottom-left .ace-chat-window {
  left: 0;
}

.ace-chat-window.ace-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: all;
}

/* Inner wrapper from ChatWindow component needs to fill and flex */
.ace-chat-window > div {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
  overflow: hidden;
}

/* ── Header with OpenAce branding ── */
.ace-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: #111827;
  color: var(--ace-text-on-primary);
  flex-shrink: 0;
}

.ace-header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.ace-header-logo {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
}

.ace-header-info h3 {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.ace-header-open {
  color: #ffffff;
}

.ace-header-ace {
  color: var(--ace-cyan);
}

.ace-header-info span {
  font-size: 11px;
  opacity: 0.65;
  font-weight: 400;
}

.ace-header-close {
  background: none;
  border: none;
  color: var(--ace-text-on-primary);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  opacity: 0.7;
  transition: opacity var(--ace-transition);
}

.ace-header-close:hover {
  opacity: 1;
}

/* ── Messages ── */
.ace-messages {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  scroll-behavior: smooth;
}

.ace-messages::-webkit-scrollbar {
  width: 5px;
}

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

.ace-messages::-webkit-scrollbar-thumb {
  background: var(--ace-border);
  border-radius: 4px;
}

/* ── Message Bubble ── */
.ace-message {
  max-width: 85%;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

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

.ace-message-ace {
  align-self: flex-start;
}

.ace-bubble {
  padding: 10px 14px;
  border-radius: var(--ace-radius);
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.ace-message-user .ace-bubble {
  background: var(--ace-bg-message-user);
  color: var(--ace-text-on-primary);
  border-bottom-right-radius: 4px;
}

.ace-message-ace .ace-bubble {
  background: var(--ace-bg-message-ace);
  color: var(--ace-text);
  border-bottom-left-radius: 4px;
}

/* Markdown inside bubbles */
.ace-bubble p { margin: 0 0 8px 0; }
.ace-bubble p:last-child { margin-bottom: 0; }
.ace-bubble strong { font-weight: 600; }
.ace-bubble em { font-style: italic; }
.ace-bubble code {
  background: rgba(0, 0, 0, 0.08);
  padding: 1px 5px;
  border-radius: 4px;
  font-size: 0.9em;
  font-family: 'SF Mono', 'Fira Code', monospace;
}
.ace-dark .ace-bubble code {
  background: rgba(255, 255, 255, 0.1);
}
.ace-bubble pre {
  background: rgba(0, 0, 0, 0.06);
  padding: 10px;
  border-radius: var(--ace-radius-sm);
  overflow-x: auto;
  margin: 8px 0;
}
.ace-dark .ace-bubble pre {
  background: rgba(0, 0, 0, 0.3);
}
.ace-bubble pre code {
  background: none;
  padding: 0;
}
.ace-bubble ul, .ace-bubble ol {
  padding-left: 20px;
  margin: 6px 0;
}
.ace-bubble li { margin: 2px 0; }
.ace-bubble a {
  color: var(--ace-primary);
  text-decoration: underline;
}
.ace-message-user .ace-bubble a {
  color: var(--ace-text-on-primary);
}
.ace-bubble blockquote {
  border-left: 3px solid var(--ace-border);
  padding-left: 10px;
  margin: 8px 0;
  color: var(--ace-text-secondary);
}
.ace-bubble h1, .ace-bubble h2, .ace-bubble h3 {
  margin: 8px 0 4px;
  font-weight: 600;
}
.ace-bubble h1 { font-size: 1.2em; }
.ace-bubble h2 { font-size: 1.1em; }
.ace-bubble h3 { font-size: 1.05em; }

/* ── Tool Chips ── */
.ace-tool-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 4px;
}

.ace-tool-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  background: var(--ace-bg-secondary);
  border: 1px solid var(--ace-border);
  border-radius: 12px;
  font-size: 11px;
  color: var(--ace-text-secondary);
}

.ace-tool-chip-icon {
  font-size: 12px;
}

/* ── Thinking Indicator ── */
.ace-thinking {
  align-self: flex-start;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--ace-bg-message-ace);
  border-radius: var(--ace-radius);
  color: var(--ace-text-secondary);
  font-size: 13px;
}

.ace-thinking-dots {
  display: flex;
  gap: 3px;
}

.ace-thinking-dots span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ace-text-secondary);
  animation: ace-bounce 1.2s infinite;
}

.ace-thinking-dots span:nth-child(2) { animation-delay: 0.15s; }
.ace-thinking-dots span:nth-child(3) { animation-delay: 0.3s; }

@keyframes ace-bounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-4px); opacity: 1; }
}

/* ── Question Card ── */
.ace-question-card {
  background: var(--ace-bg-secondary);
  border: 1px solid var(--ace-border);
  border-radius: var(--ace-radius-sm);
  padding: 12px;
  margin-top: 6px;
}

.ace-question-card p {
  margin-bottom: 8px;
  font-weight: 500;
}

.ace-question-options {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ace-question-option {
  padding: 8px 12px;
  background: var(--ace-bg);
  border: 1px solid var(--ace-border);
  border-radius: var(--ace-radius-sm);
  cursor: pointer;
  text-align: left;
  font-size: 13px;
  color: var(--ace-text);
  transition: border-color var(--ace-transition), background var(--ace-transition);
}

.ace-question-option:hover {
  border-color: var(--ace-primary);
  background: rgba(99, 102, 241, 0.05);
}

.ace-question-option:active {
  background: rgba(99, 102, 241, 0.1);
}

/* ── Input Area ── */
.ace-input-area {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--ace-border);
  background: var(--ace-bg);
  flex-shrink: 0;
}

.ace-input-wrapper {
  flex: 1;
  display: flex;
}

.ace-input {
  width: 100%;
  border: 1px solid var(--ace-border);
  border-radius: 20px;
  padding: 8px 16px;
  font-size: var(--ace-font-size);
  font-family: var(--ace-font);
  background: var(--ace-bg-secondary);
  color: var(--ace-text);
  outline: none;
  resize: none;
  max-height: 120px;
  min-height: 36px;
  line-height: 1.4;
  transition: border-color var(--ace-transition);
}

.ace-input:focus {
  border-color: var(--ace-primary);
}

.ace-input::placeholder {
  color: var(--ace-text-secondary);
}

.ace-send-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: var(--ace-primary);
  color: var(--ace-text-on-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background var(--ace-transition), opacity var(--ace-transition);
}

.ace-send-btn:hover {
  background: var(--ace-primary-hover);
}

.ace-send-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.ace-send-btn svg {
  width: 18px;
  height: 18px;
}

/* ── Upgrade Banner ── */
.ace-upgrade-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  background: linear-gradient(135deg, #fef3c7, #fde68a);
  border-top: 1px solid #fbbf24;
  flex-shrink: 0;
}

.ace-dark .ace-upgrade-banner {
  background: linear-gradient(135deg, #422006, #78350f);
  border-top-color: #92400e;
}

.ace-upgrade-banner span {
  font-size: 12px;
  color: #92400e;
  font-weight: 500;
}

.ace-dark .ace-upgrade-banner span {
  color: #fbbf24;
}

.ace-upgrade-btn {
  padding: 4px 12px;
  background: #f59e0b;
  color: white;
  border: none;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--ace-transition);
}

.ace-upgrade-btn:hover {
  background: #d97706;
}

/* ── Watermark ── */
.ace-watermark {
  text-align: center;
  padding: 6px;
  border-top: 1px solid var(--ace-border);
  flex-shrink: 0;
}

.ace-watermark a {
  font-size: 10px;
  color: var(--ace-text-secondary);
  text-decoration: none;
  opacity: 0.7;
  transition: opacity var(--ace-transition);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.ace-watermark a:hover {
  opacity: 1;
}

.ace-watermark-logo {
  vertical-align: middle;
}

/* ── Greeting ── */
.ace-greeting {
  text-align: center;
  padding: 24px 16px;
  color: var(--ace-text-secondary);
}

.ace-greeting-logo {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--ace-bg-secondary);
  border: 2px solid var(--ace-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
}

.ace-greeting h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--ace-text);
  margin-bottom: 6px;
}

.ace-greeting p {
  font-size: 13px;
  line-height: 1.5;
  max-width: 280px;
  margin: 0 auto;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .ace-chat-window {
    width: calc(100vw - 24px);
    height: calc(100vh - 100px);
    bottom: 68px;
    right: 12px !important;
    left: 12px !important;
    border-radius: var(--ace-radius-sm);
  }

  .ace-widget-container {
    bottom: 12px !important;
    right: 12px !important;
    left: auto !important;
  }

  .ace-fab {
    width: 52px;
    height: 52px;
  }
}