/* Generation Chat Interface - Compact Collapsed Design */
/* Chat-like interface with collapsible prompt messages */
/* Applied: 2026-10-17 */

.gen-chat-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
}

.gen-chat-messages {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: var(--space-md) var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  scrollbar-width: thin;
  scrollbar-color: var(--mono-gray-700) transparent;
}

/* Chat message bubble */
.gen-chat-message {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  max-width: 85%;
  animation: slideIn 0.2s ease;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.gen-chat-message.assistant {
  align-self: flex-start;
}

/* Message header with collapse button */
.gen-message-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 10px;
  color: var(--nd-text-secondary);
  cursor: pointer;
  user-select: none;
}

.gen-message-toggle {
  width: 16px;
  height: 16px;
  display: grid;
  place-items: center;
  border: 1px solid var(--nd-line);
  border-radius: var(--radius-sm);
  background: var(--nd-surface);
  color: var(--nd-text-secondary);
  font-size: 10px;
  transition: all 0.15s ease;
}

.gen-message-toggle:hover {
  border-color: var(--nd-line-strong);
  background: var(--nd-surface-raised);
}

.gen-message-collapsed .gen-message-toggle::before {
  content: '▶';
}

.gen-message-expanded .gen-message-toggle::before {
  content: '▼';
}

/* Message content bubble */
.gen-message-body {
  border: 1px solid var(--nd-line);
  border-radius: var(--radius-lg);
  background: var(--nd-surface);
  padding: 10px 12px;
  font-size: 12px;
  line-height: 1.5;
  transition: all 0.2s ease;
}

.gen-chat-message.user .gen-message-body {
  background: var(--nd-surface-raised);
  border-color: var(--nd-line-strong);
}

/* Collapsed state - show preview only */
.gen-message-collapsed .gen-message-body {
  padding: 6px 10px;
  font-size: 11px;
  color: var(--nd-text-secondary);
  cursor: pointer;
  max-height: 32px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.gen-message-collapsed .gen-message-body:hover {
  border-color: var(--nd-line-strong);
  background: var(--nd-surface-raised);
}

/* Expanded state - full content */
.gen-message-expanded .gen-message-body {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

/* Message metadata */
.gen-message-meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-xs);
  font-size: 9px;
  color: var(--nd-text-secondary);
}

.gen-message-time {
  opacity: 0.7;
}

/* Reference thumbnails in messages */
.gen-message-refs {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
  flex-wrap: wrap;
}

.gen-message-ref-thumb {
  width: 48px;
  height: 48px;
  border: 1px solid var(--nd-line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--nd-surface);
}

.gen-message-ref-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Message actions */
.gen-message-actions {
  display: flex;
  gap: var(--space-xs);
  margin-top: var(--space-sm);
  opacity: 0;
  transition: opacity 0.15s ease;
}

.gen-chat-message:hover .gen-message-actions {
  opacity: 1;
}

.gen-message-action-btn {
  padding: 4px 8px;
  border: 1px solid var(--nd-line);
  border-radius: var(--radius-sm);
  background: var(--nd-surface);
  color: var(--nd-text-secondary);
  font-size: 10px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.gen-message-action-btn:hover {
  border-color: var(--nd-line-strong);
  background: var(--nd-surface-raised);
  color: var(--nd-text);
}

/* Status message (system) */
.gen-chat-message.system {
  align-self: center;
  max-width: 100%;
}

.gen-chat-message.system .gen-message-body {
  background: transparent;
  border: 1px dashed var(--nd-line);
  text-align: center;
  font-size: 11px;
  color: var(--nd-text-secondary);
  padding: 8px 12px;
}

/* Generation result in chat */
.gen-message-result {
  margin-top: var(--space-sm);
  border: 1px solid var(--nd-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--nd-surface);
}

.gen-message-result video,
.gen-message-result img {
  display: block;
  width: 100%;
  max-height: 300px;
  object-fit: contain;
  background: var(--mono-black);
}

.gen-message-result-info {
  padding: 8px 10px;
  font-size: 10px;
  color: var(--nd-text-secondary);
  border-top: 1px solid var(--nd-line);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Empty state */
.gen-chat-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-2xl);
  text-align: center;
  color: var(--nd-text-secondary);
  flex: 1;
}

.gen-chat-empty h3 {
  font-size: 16px;
  margin-bottom: var(--space-sm);
  color: var(--nd-text);
}

.gen-chat-empty p {
  font-size: 12px;
  max-width: 400px;
  margin: 0;
}

/* Typing indicator */
.gen-typing-indicator {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 12px;
  border: 1px solid var(--nd-line);
  border-radius: var(--radius-lg);
  background: var(--nd-surface);
  max-width: 60px;
}

.gen-typing-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--nd-text-secondary);
  animation: typingBounce 1.4s infinite ease-in-out;
}

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

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

@keyframes typingBounce {
  0%, 60%, 100% {
    transform: translateY(0);
  }
  30% {
    transform: translateY(-6px);
  }
}

/* Compact mobile */
@media (max-width: 720px) {
  .gen-chat-messages {
    padding: var(--space-md);
  }

  .gen-chat-message {
    max-width: 90%;
  }

  .gen-message-body {
    font-size: 11px;
  }

  .gen-message-result video,
  .gen-message-result img {
    max-height: 200px;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .gen-chat-message,
  .gen-typing-dot {
    animation: none;
  }

  * {
    transition-duration: 0.01ms !important;
  }
}