/* ============================================
   Chat UX Enhancements (S29)
   Styles for thinking indicator, persona badges,
   optimistic message states, and streaming polish.
   Uses design-tokens.css variables.
   ============================================ */

/* === Thinking Indicator (in-stream) === */

.thinking-indicator {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 0;
  animation: thinking-fade-in 0.2s ease;
}

@keyframes thinking-fade-in {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.thinking-indicator .thinking-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
}

.thinking-indicator .thinking-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.thinking-indicator .thinking-text {
  font-size: 13px;
  color: var(--text-secondary, #9a9990);
  font-weight: 500;
}

.thinking-indicator .thinking-pulse {
  display: inline-flex;
  gap: 3px;
  margin-left: 2px;
  vertical-align: middle;
}

.thinking-indicator .thinking-pulse span {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent, #4a90d9);
  animation: thinking-dot 1.4s ease-in-out infinite;
}

.thinking-indicator .thinking-pulse span:nth-child(2) {
  animation-delay: 0.2s;
}

.thinking-indicator .thinking-pulse span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes thinking-dot {
  0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); }
  40% { opacity: 1; transform: scale(1.2); }
}

@media (prefers-reduced-motion: reduce) {
  .thinking-indicator .thinking-pulse span {
    animation: none;
    opacity: 0.6;
  }
}

/* Transition from thinking to streaming content */
.message.streaming .thinking-indicator {
  transition: opacity 0.15s ease;
}

.message.streaming.has-content .thinking-indicator {
  display: none;
}

/* === Optimistic Message States === */

.message.user.pending .message-bubble {
  opacity: 0.7;
}

.message.user.pending .message-bubble::after {
  content: '';
  display: inline-block;
  width: 10px;
  height: 10px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: rgba(255,255,255,0.8);
  border-radius: 50%;
  animation: spin-small 0.6s linear infinite;
  margin-left: 6px;
  vertical-align: middle;
}

@keyframes spin-small {
  to { transform: rotate(360deg); }
}

.message.user.sent .message-bubble {
  opacity: 1;
}

.message.user.failed .message-bubble {
  opacity: 1;
  border: 1px solid var(--error, #ff3b30);
}

.message.user.failed .message-retry {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
  font-size: 12px;
  color: var(--error, #ff3b30);
}

.message.user.failed .message-retry button {
  background: none;
  border: 1px solid var(--error, #ff3b30);
  color: var(--error, #ff3b30);
  padding: 4px 10px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  transition: 0.15s ease;
}

.message.user.failed .message-retry button:hover {
  background: rgba(255, 59, 48, 0.1);
}

/* === Enhanced Persona Indicator === */

.message-agent-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px 3px 4px;
  border-radius: 20px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  transition: background 0.15s ease;
}

.message-agent-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  flex-shrink: 0;
}

.message-agent-icon.advisor   { background: rgba(74, 144, 217, 0.15); }
.message-agent-icon.coach     { background: rgba(80, 160, 80, 0.15); }
.message-agent-icon.architect { background: rgba(149, 117, 205, 0.15); }
.message-agent-icon.problem_solver { background: rgba(229, 115, 115, 0.15); }
.message-agent-icon.compliance { background: rgba(38, 166, 154, 0.15); }
.message-agent-icon.parallel  { background: rgba(255, 167, 38, 0.15); }

.message-agent-name {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.message-agent-name.advisor   { color: var(--advisor-color, #4a90d9); }
.message-agent-name.coach     { color: var(--coach-color, #50a050); }
.message-agent-name.architect { color: var(--architect-color, #9575cd); }
.message-agent-name.problem_solver { color: var(--problem-solver-color, #e57373); }
.message-agent-name.compliance { color: var(--compliance-color, #26a69a); }
.message-agent-name.parallel  { color: var(--parallel-color, #ffa726); }

/* === Smooth Auto-Scroll Indicator === */

.scroll-anchor {
  height: 0;
  overflow: hidden;
}

/* === Command Palette Chat Commands === */

.command-palette__item-icon {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  flex-shrink: 0;
  background: rgba(255,255,255,0.05);
}

.command-palette__item-text {
  flex: 1;
  min-width: 0;
}

.command-palette__item-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-primary, #f5f5f3);
}

.command-palette__item-desc {
  font-size: 12px;
  color: var(--color-text-tertiary, #71717A);
  margin-top: 1px;
}

.command-palette__section-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-tertiary, #71717A);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 8px 12px 4px;
}

.command-palette__kbd {
  font-size: 11px;
  color: var(--color-text-tertiary, #71717A);
  background: rgba(255,255,255,0.05);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-mono, monospace);
  margin-left: auto;
  flex-shrink: 0;
}

/* === Performance Debug Badge (dev only) === */

.perf-badge {
  position: fixed;
  bottom: 80px;
  right: 12px;
  background: rgba(0,0,0,0.85);
  color: #66ff66;
  font-family: var(--font-mono, monospace);
  font-size: 11px;
  padding: 4px 8px;
  border-radius: 4px;
  z-index: 9999;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s;
}

.perf-badge.visible {
  opacity: 1;
}

/* === Streaming Cursor Enhancement === */

.streaming-cursor {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  background: var(--accent, #4a90d9);
  margin-left: 1px;
  vertical-align: text-bottom;
  animation: cursor-blink 1s step-end infinite;
}

@keyframes cursor-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .streaming-cursor {
    animation: none;
    opacity: 0.7;
  }
}