/**
 * Widget v3 Stylesheet
 * Clean, valid stylesheet aligned with v3 components.
 */

:root {
  --ddb-primary: #1f4d3b;
  --ddb-primary-dark: #173a2d;
  --ddb-primary-light: #2e6c53;
  --ddb-secondary: #d2693c;

  --ddb-text: #1f2937;
  --ddb-text-light: #6b7280;
  --ddb-bg: #ffffff;
  --ddb-bg-muted: #f8fafc;
  --ddb-bg-hover: #f1f5f9;
  --ddb-border: #e2e8f0;
  --ddb-border-strong: #cbd5e1;

  --ddb-success: #10b981;
  --ddb-error: #ef4444;
  --ddb-warning: #f59e0b;

  --ddb-shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.08);
  --ddb-shadow-md: 0 12px 32px rgba(15, 23, 42, 0.16);
  --ddb-shadow-lg: 0 18px 48px rgba(15, 23, 42, 0.2);

  --ddb-radius-sm: 10px;
  --ddb-radius: 16px;
  --ddb-radius-lg: 22px;

  --ddb-space-xs: 4px;
  --ddb-space-sm: 8px;
  --ddb-space-md: 12px;
  --ddb-space-lg: 16px;
  --ddb-space-xl: 24px;

  --ddb-font-xs: 12px;
  --ddb-font-sm: 14px;
  --ddb-font-md: 15px;
  --ddb-font-lg: 18px;
  --ddb-font-xl: 20px;

  --ddb-touch-sm: 44px;
  --ddb-touch-md: 48px;
  --ddb-touch-lg: 56px;

  --ddb-transition: 180ms ease;
}

.ddb-widget,
.ddb-widget * {
  box-sizing: border-box;
}

.ddb-widget {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--ddb-text);
  line-height: 1.45;
}

.ddb-launcher {
  position: fixed;
  left: calc(var(--ddb-space-xl) + 76px);
  bottom: var(--ddb-space-xl);
  z-index: 999999;
  display: inline-flex;
  align-items: center;
  gap: var(--ddb-space-sm);
  height: var(--ddb-touch-lg);
  padding: 0 var(--ddb-space-lg);
  border: 0;
  border-radius: 999px;
  background: var(--ddb-primary);
  color: #fff;
  cursor: pointer;
  font-size: var(--ddb-font-md);
  font-weight: 600;
  box-shadow: var(--ddb-shadow-md);
  transition: transform var(--ddb-transition), box-shadow var(--ddb-transition), background var(--ddb-transition);
}

.ddb-launcher:hover {
  transform: translateY(-1px);
  box-shadow: var(--ddb-shadow-lg);
  background: var(--ddb-primary-dark);
}

.ddb-launcher:focus-visible {
  outline: 3px solid var(--ddb-secondary);
  outline-offset: 2px;
}

.ddb-launcher.ddb-hidden {
  display: none;
}

.ddb-launcher-badge {
  position: absolute;
  top: -6px;
  right: -6px;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  border: 2px solid #fff;
  border-radius: 999px;
  background: var(--ddb-error);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  line-height: 16px;
  text-align: center;
  display: none;
}

.ddb-launcher-badge.ddb-visible {
  display: inline-block;
}

@keyframes ddb-pulse {
  0% { box-shadow: var(--ddb-shadow-md), 0 0 0 0 rgba(210, 105, 60, 0.5); }
  70% { box-shadow: var(--ddb-shadow-md), 0 0 0 12px rgba(210, 105, 60, 0); }
  100% { box-shadow: var(--ddb-shadow-md), 0 0 0 0 rgba(210, 105, 60, 0); }
}

.ddb-launcher.ddb-pulse {
  animation: ddb-pulse 1.8s ease-out 1;
}

.ddb-panel {
  position: fixed;
  left: var(--ddb-space-xl);
  bottom: calc(var(--ddb-space-xl) + 70px);
  z-index: 1000000;
  width: 410px;
  max-width: calc(100vw - 24px);
  height: 680px;
  max-height: calc(100vh - 100px);
  display: flex;
  flex-direction: column;
  border-radius: var(--ddb-radius-lg);
  border: 1px solid var(--ddb-border);
  background: var(--ddb-bg);
  box-shadow: var(--ddb-shadow-lg);
  overflow: hidden;
  opacity: 0;
  transform: translateY(8px) scale(0.98);
  pointer-events: none;
  transition: opacity var(--ddb-transition), transform var(--ddb-transition);
}

.ddb-panel.ddb-open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.ddb-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--ddb-space-md);
  padding: var(--ddb-space-lg) var(--ddb-space-xl);
  background: linear-gradient(135deg, var(--ddb-primary), var(--ddb-primary-dark));
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.ddb-panel-title {
  font-size: var(--ddb-font-xl);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.ddb-panel-subtitle {
  margin-top: 4px;
  font-size: var(--ddb-font-sm);
  opacity: 0.92;
}

.ddb-panel-actions {
  display: inline-flex;
  gap: var(--ddb-space-sm);
}

.ddb-theme-toggle,
.ddb-close-btn {
  width: var(--ddb-touch-sm);
  height: var(--ddb-touch-sm);
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background var(--ddb-transition), transform var(--ddb-transition);
}

.ddb-theme-toggle:hover,
.ddb-close-btn:hover {
  background: rgba(255, 255, 255, 0.3);
}

.ddb-theme-toggle:active,
.ddb-close-btn:active {
  transform: scale(0.97);
}

.ddb-welcome-section {
  padding: var(--ddb-space-xl);
  text-align: center;
  background: linear-gradient(180deg, var(--ddb-bg-muted), var(--ddb-bg));
  border-bottom: 1px solid var(--ddb-border);
}

.ddb-welcome-icon {
  font-size: 42px;
  margin-bottom: var(--ddb-space-sm);
}

.ddb-welcome-title {
  font-size: var(--ddb-font-lg);
  margin-bottom: var(--ddb-space-sm);
}

.ddb-welcome-text {
  font-size: var(--ddb-font-sm);
  color: var(--ddb-text-light);
  margin-bottom: var(--ddb-space-md);
}

.ddb-welcome-text strong {
  color: var(--ddb-primary);
}

.ddb-welcome-suggestions {
  display: flex;
  flex-direction: column;
  gap: var(--ddb-space-sm);
}

.ddb-suggestion-chip {
  border: 1px solid var(--ddb-border-strong);
  border-radius: 20px;
  background: var(--ddb-bg-muted);
  color: var(--ddb-text);
  text-align: center;
  font-size: 12px;
  padding: 6px 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  font-weight: 500;
  margin-right: 4px;
  margin-bottom: 4px;
}

.ddb-suggestion-chip:hover {
  border-color: var(--ddb-primary);
  background: var(--ddb-primary);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 2px 6px rgba(31, 77, 59, 0.2);
}

.ddb-suggestion-chip.ddb-primary {
  background: var(--ddb-primary);
  color: #fff;
  border-color: var(--ddb-primary);
  font-weight: 600;
}

.ddb-suggestion-chip.ddb-primary:hover {
  background: var(--ddb-primary-dark);
  border-color: var(--ddb-primary-dark);
}

.ddb-categories {
  display: flex;
  gap: var(--ddb-space-sm);
  overflow-x: auto;
  padding: 8px 10px;
  border-bottom: 1px solid var(--ddb-border);
  background: linear-gradient(180deg, rgba(17, 24, 39, 0.04), rgba(17, 24, 39, 0));
  scrollbar-width: none;
}

.ddb-categories::-webkit-scrollbar {
  display: none;
}

.ddb-suggestions-bar {
  padding: 8px var(--ddb-space-md) 10px;
  border-bottom: 1px solid var(--ddb-border);
  background: var(--ddb-bg);
  max-height: 140px;
  overflow-y: auto;
}

.ddb-suggestions-title {
  font-size: 10px;
  color: var(--ddb-text-light);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
}

.ddb-suggestions-list {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
}

.ddb-category {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 32px;
  padding: 6px 10px;
  border: 1px solid var(--ddb-border-strong);
  border-radius: 999px;
  background: var(--ddb-bg);
  color: var(--ddb-text);
  cursor: pointer;
  white-space: nowrap;
  font-size: 12.5px;
}

.ddb-category:hover {
  background: var(--ddb-bg-hover);
}

.ddb-category.ddb-active {
  border-color: var(--ddb-primary);
  background: var(--ddb-primary);
  color: #fff;
}

.ddb-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--ddb-space-lg);
  background: var(--ddb-bg);
  display: flex;
  flex-direction: column;
  gap: var(--ddb-space-md);
}

.ddb-messages::-webkit-scrollbar {
  width: 7px;
}

.ddb-messages::-webkit-scrollbar-thumb {
  background: var(--ddb-border-strong);
  border-radius: 999px;
}

.ddb-message {
  display: flex;
  gap: var(--ddb-space-sm);
  align-items: flex-start;
}

.ddb-message.ddb-user {
  flex-direction: row-reverse;
}

.ddb-message-avatar {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ddb-bg-muted);
  border: 1px solid var(--ddb-border);
}

.ddb-message-content {
  max-width: 78%;
  display: flex;
  flex-direction: column;
  gap: var(--ddb-space-xs);
}

.ddb-message.ddb-user .ddb-message-content {
  align-items: flex-end;
}

.ddb-message-bubble {
  border-radius: var(--ddb-radius);
  padding: 10px 12px;
  font-size: var(--ddb-font-sm);
  line-height: 1.5;
  box-shadow: var(--ddb-shadow-sm);
  word-break: break-word;
}

.ddb-message-text {
  white-space: pre-wrap;
}

.ddb-message.ddb-user .ddb-message-bubble {
  background: var(--ddb-primary);
  color: #fff;
  border-bottom-right-radius: 6px;
}

.ddb-message.ddb-bot .ddb-message-bubble {
  background: var(--ddb-bg-muted);
  border: 1px solid var(--ddb-border);
  color: var(--ddb-text);
  border-bottom-left-radius: 6px;
}

.ddb-message-time {
  font-size: var(--ddb-font-xs);
  color: var(--ddb-text-light);
  padding: 0 4px;
}

.ddb-message-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--ddb-space-xs);
  margin-top: var(--ddb-space-xs);
}

.ddb-message-suggestions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--ddb-space-xs);
  margin-top: var(--ddb-space-xs);
}

.ddb-action-btn,
.ddb-message-action {
  border: 1px solid var(--ddb-border-strong);
  border-radius: var(--ddb-radius-sm);
  background: var(--ddb-bg);
  color: var(--ddb-primary);
  padding: 6px 10px;
  font-size: var(--ddb-font-sm);
  cursor: pointer;
}

.ddb-action-btn:hover,
.ddb-message-action:hover {
  background: var(--ddb-bg-hover);
}

.ddb-loading-dots {
  display: inline-flex;
  gap: 6px;
  align-items: center;
}

@keyframes ddb-bounce {
  0%, 80%, 100% { transform: translateY(0); opacity: 0.5; }
  40% { transform: translateY(-3px); opacity: 1; }
}

.ddb-loading-dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--ddb-text-light);
  animation: ddb-bounce 1.4s infinite ease-in-out;
}

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

.ddb-input-bar {
  display: flex;
  gap: var(--ddb-space-sm);
  align-items: flex-end;
  padding: var(--ddb-space-md);
  border-top: 1px solid var(--ddb-border);
  background: var(--ddb-bg);
}

.ddb-input-wrapper {
  flex: 1;
  min-width: 0;
}

.ddb-input {
  width: 100%;
  min-height: var(--ddb-touch-sm);
  border: 1px solid var(--ddb-border-strong);
  border-radius: var(--ddb-radius-sm);
  background: var(--ddb-bg-muted);
  color: var(--ddb-text);
  padding: 10px 12px;
  font-size: var(--ddb-font-sm);
  font-family: inherit;
}

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

.ddb-input:hover {
  border-color: var(--ddb-primary-light);
  background: var(--ddb-bg);
}

.ddb-input:focus {
  outline: none;
  border-color: var(--ddb-primary);
  box-shadow: 0 0 0 3px rgba(31, 77, 59, 0.14);
  background: var(--ddb-bg);
}

.ddb-input:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.ddb-char-counter {
  margin-top: 6px;
  font-size: 11px;
  color: var(--ddb-text-light);
  text-align: right;
}

.ddb-send-btn {
  width: var(--ddb-touch-md);
  height: var(--ddb-touch-md);
  border: 0;
  border-radius: 999px;
  background: var(--ddb-primary);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--ddb-shadow-sm);
  transition: transform var(--ddb-transition), background var(--ddb-transition);
}

.ddb-send-btn:hover:not(.ddb-disabled) {
  background: var(--ddb-primary-dark);
  transform: translateY(-1px);
}

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

.ddb-video-avatar-container {
  position: fixed;
  left: var(--ddb-space-xl);
  bottom: var(--ddb-space-xl);
  width: 64px;
  height: 64px;
  border-radius: 999px;
  overflow: hidden;
  z-index: 999998;
}

.ddb-animated-avatar-container {
  position: absolute;
  bottom: -4px;
  left: -4px;
  width: 64px;
  height: 64px;
  border-radius: 999px;
  overflow: hidden;
  pointer-events: none;
  z-index: 999998;
  background: linear-gradient(135deg, #5fa2ff, #4b7de3);
}

.ddb-animated-avatar {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
}

.ddb-animated-avatar-container.ddb-hidden {
  opacity: 0;
  transform: scale(0.85);
}

.ddb-panel[data-theme="dark"] {
  --ddb-text: #f3f4f6;
  --ddb-text-light: #9ca3af;
  --ddb-bg: #111827;
  --ddb-bg-muted: #1f2937;
  --ddb-bg-hover: #334155;
  --ddb-border: #334155;
  --ddb-border-strong: #475569;
  --ddb-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.34);
  --ddb-shadow-md: 0 12px 32px rgba(0, 0, 0, 0.45);
  --ddb-shadow-lg: 0 18px 48px rgba(0, 0, 0, 0.55);
}

.ddb-panel[data-theme="dark"] .ddb-message.ddb-bot .ddb-message-bubble {
  border-color: var(--ddb-border-strong);
}

.ddb-panel[data-theme="dark"] .ddb-theme-toggle,
.ddb-panel[data-theme="dark"] .ddb-close-btn {
  background: rgba(255, 255, 255, 0.16);
}

.ddb-panel[data-theme="dark"] .ddb-categories {
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.6));
  border-bottom-color: rgba(148, 163, 184, 0.25);
}

.ddb-panel[data-theme="dark"] .ddb-category {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(148, 163, 184, 0.25);
  color: #e5e7eb;
}

.ddb-panel[data-theme="dark"] .ddb-category.ddb-active {
  background: #3b8f6a;
  border-color: #3b8f6a;
  color: #fff;
}

@media (max-width: 640px) {
  .ddb-launcher {
    left: calc(var(--ddb-space-lg) + 72px);
    bottom: var(--ddb-space-lg);
  }

  .ddb-panel {
    left: var(--ddb-space-sm);
    bottom: var(--ddb-space-sm);
    width: calc(100vw - 16px);
    height: calc(100vh - 16px);
    max-height: none;
    border-radius: 14px;
  }

  .ddb-suggestions-list,
  .ddb-message-suggestions {
    grid-template-columns: 1fr;
  }

  .ddb-video-avatar-container {
    left: var(--ddb-space-lg);
    bottom: var(--ddb-space-lg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .ddb-launcher,
  .ddb-panel,
  .ddb-send-btn,
  .ddb-theme-toggle,
  .ddb-close-btn {
    transition: none;
  }

  .ddb-loading-dot {
    animation: none;
  }
}

/* Action Bar */
.ddb-action-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--ddb-space-sm);
  padding: var(--ddb-space-md);
  border-top: 1px solid var(--ddb-border);
  background: var(--ddb-bg-muted);
}

.ddb-action-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--ddb-border-strong);
  border-radius: var(--ddb-radius-sm);
  background: var(--ddb-bg);
  color: var(--ddb-text);
  cursor: pointer;
  transition: all var(--ddb-transition);
}

.ddb-action-icon:hover {
  background: var(--ddb-primary);
  color: white;
  border-color: var(--ddb-primary);
  transform: translateY(-2px);
  box-shadow: var(--ddb-shadow-sm);
}

.ddb-action-icon svg {
  display: block;
}

/* Quick Replies */
.ddb-quick-replies {
  display: flex;
  flex-direction: column;
  gap: var(--ddb-space-sm);
  margin-bottom: var(--ddb-space-md);
  padding: 0 var(--ddb-space-sm);
}

.ddb-quick-btn {
  padding: var(--ddb-space-md) var(--ddb-space-lg);
  border-radius: var(--ddb-radius-sm);
  border: 2px solid var(--ddb-primary);
  background: var(--ddb-bg);
  color: var(--ddb-primary);
  font-size: var(--ddb-font-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--ddb-transition);
  text-align: left;
  box-shadow: 0 2px 8px rgba(31, 77, 59, 0.1);
}

.ddb-quick-btn:hover {
  background: var(--ddb-primary);
  color: white;
  transform: translateX(4px);
  box-shadow: 0 4px 12px rgba(31, 77, 59, 0.2);
}

/* Dark mode support */
.ddb-panel[data-theme="dark"] .ddb-action-bar {
  background: rgba(255, 255, 255, 0.06);
  border-top-color: rgba(255, 255, 255, 0.08);
}

.ddb-panel[data-theme="dark"] .ddb-action-icon {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
  color: var(--ddb-text);
}

.ddb-panel[data-theme="dark"] .ddb-action-icon:hover {
  background: var(--ddb-primary);
  border-color: var(--ddb-primary);
  color: white;
}

.ddb-panel[data-theme="dark"] .ddb-quick-btn {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  color: #4ade80;
}

.ddb-panel[data-theme="dark"] .ddb-quick-btn:hover {
  background: var(--ddb-primary);
  color: white;
  border-color: var(--ddb-primary);
}