/* ══════════════════════════════════════════════════════════════════
   LAB CHAT WORKSPACE STYLES (css/chat.css)
   - Chat message bubbles & avatars
   - Dedicated Non-Overlapping Code Block Headers
   - Message Header Actions (Reply, Pin, Delete, Mute)
   - Reply Bar & Quote rendering
   - Pinned Message / Notice Banner
   - Responsive Compose Bar
   ══════════════════════════════════════════════════════════════════ */

/* Indicators Bar */
.chat-indicators-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px 0;
  flex-shrink: 0;
}

.indicator-pill {
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 0.64rem;
  font-weight: 600;
  background: var(--surface-alt);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  display: none;
  align-items: center;
  gap: 5px;
}
.indicator-pill.visible {
  display: inline-flex;
}
.indicator-pill.locked {
  border-color: rgba(231, 76, 60, 0.3);
  color: var(--red);
}
.indicator-pill.slow {
  border-color: rgba(245, 158, 11, 0.3);
  color: var(--f1-gold);
}

/* Pinned Banner */
#pin-banner {
  display: none;
  margin: 8px 16px 4px;
  padding: 10px 14px;
  border-radius: 12px;
  background: var(--surface-alt);
  border: 1px solid rgba(107, 114, 128, 0.25);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  font-size: 0.82rem;
  color: var(--text-primary);
  line-height: 1.4;
  position: relative;
  flex-shrink: 0;
  transition: background 0.2s;
}
#pin-banner.clickable {
  cursor: pointer;
}
#pin-banner.clickable:hover {
  background: var(--surface-hover);
}
.pin-banner-content {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.pin-icon {
  font-size: 0.95rem;
  color: var(--accent-glow);
  flex-shrink: 0;
  margin-top: 1px;
}
.pin-details {
  flex: 1;
  min-width: 0;
}
#pin-text {
  font-weight: 500;
  word-break: break-word;
}
#pin-by {
  font-size: 0.65rem;
  color: var(--text-muted);
  margin-top: 3px;
}

/* Main Chat Container */
#chat-container {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
  background: transparent;
}

/* Message Feed */
#message-feed {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  padding: 14px 16px 8px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  scroll-behavior: smooth;
}

#message-feed:empty::after {
  content: 'No messages yet in this session. Say hello!';
  display: block;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin: auto 0;
  padding: 40px 0;
  font-style: italic;
}

/* Message Wrappers */
.msg-wrap {
  display: flex;
  flex-direction: column;
  max-width: 80%;
  animation: msgEntrance 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}
.msg-wrap.self {
  align-self: flex-end;
  margin-left: auto;
}
.msg-wrap.other {
  align-self: flex-start;
  margin-right: auto;
}

/* Message Header with Actions Built-In */
.msg-hdr {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 3px;
  padding: 0 4px;
}
.msg-wrap.self .msg-hdr {
  flex-direction: row-reverse;
}

.msg-hdr-left {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.mn {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
}

.ma {
  font-size: 0.55rem;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 6px;
  background: linear-gradient(135deg, #e11d48, #be123c);
  color: #ffffff;
  box-shadow: 0 0 8px rgba(225, 29, 72, 0.35);
}

.mt {
  font-size: 0.62rem;
  color: var(--text-muted);
  white-space: nowrap;
}

/* Actions in Header Row (Never Overlaps Code) */
.msg-actions-inline {
  display: flex;
  align-items: center;
  gap: 3px;
  opacity: 0.15;
  transition: opacity 0.2s ease;
}
.msg-wrap:hover .msg-actions-inline {
  opacity: 1;
}
@media (hover: none) {
  .msg-actions-inline {
    opacity: 0.75;
  }
}

.msg-act-btn {
  background: var(--surface-alt);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  border-radius: 6px;
  padding: 2px 6px;
  font-size: 0.65rem;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  transition: all 0.15s ease;
}
.msg-act-btn:hover {
  background: var(--surface-hover);
  color: var(--text-primary);
  border-color: var(--glass-border-hover);
}
.msg-act-btn.delete-btn:hover {
  color: var(--red);
  border-color: rgba(231, 76, 60, 0.3);
}

/* Message Bubble */
.msg-bubble {
  padding: 10px 14px;
  border-radius: 14px;
  font-size: 0.88rem;
  line-height: 1.5;
  word-wrap: break-word;
  overflow-wrap: break-word;
  position: relative;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}
.msg-wrap.other .msg-bubble {
  background: var(--surface);
  border: 1px solid var(--glass-border);
  border-top-left-radius: 4px;
}
.msg-wrap.self .msg-bubble {
  background: var(--accent-subtle);
  border: 1px solid rgba(94, 106, 210, 0.35);
  color: var(--text-primary);
  border-top-right-radius: 4px;
}
.msg-wrap.admin-msg .msg-bubble {
  border-color: rgba(107, 114, 128, 0.4);
  box-shadow: 0 0 16px rgba(107, 114, 128, 0.15);
}

/* Reply Quote Inside Bubble */
.reply-quote {
  padding: 6px 10px;
  margin-bottom: 8px;
  border-radius: 8px;
  background: var(--surface-alt);
  border-left: 3px solid var(--accent);
  font-size: 0.76rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background 0.15s ease;
}
.reply-quote:hover {
  background: var(--surface-hover);
}
.rq-user {
  font-weight: 700;
  color: var(--accent-glow);
  margin-right: 5px;
}
.rq-text {
  color: var(--text-muted);
}

/* Dedicated Code Blocks with Top Header (Non-Overlapping) */
.code-container {
  margin: 6px 0 2px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--glass-border);
  background: rgba(11, 12, 16, 0.7);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}
.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  background: rgba(0, 0, 0, 0.35);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.code-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--accent-glow);
  text-transform: uppercase;
}
.code-copy-btn {
  background: var(--surface-alt);
  border: 1px solid var(--glass-border);
  border-radius: 5px;
  color: var(--text-secondary);
  padding: 3px 8px;
  font-size: 0.65rem;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}
.code-copy-btn:hover {
  background: var(--surface-hover);
  color: var(--text-primary);
  border-color: var(--glass-border-hover);
}

.code-container pre {
  margin: 0;
  padding: 10px 12px;
  overflow-x: auto;
}
.code-container pre code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: #e2e8f0;
  line-height: 1.5;
}

/* Inline code pill */
.msg-bubble code:not(pre code) {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  background: rgba(0, 0, 0, 0.3);
  padding: 2px 6px;
  border-radius: 5px;
  color: var(--accent-glow);
}

/* Floating New Messages Pill */
#new-msg-pill {
  display: none;
  position: absolute;
  bottom: 84px;
  left: 50%;
  transform: translateX(-50%);
  padding: 7px 16px;
  background: var(--surface-alt);
  border: 1px solid var(--accent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 24px;
  color: var(--text-primary);
  font-size: 0.76rem;
  font-weight: 600;
  cursor: pointer;
  z-index: 20;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
  animation: pillPop 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}
#new-msg-pill:hover {
  background: var(--accent-subtle);
}
@keyframes pillPop {
  from { opacity: 0; transform: translateX(-50%) translateY(8px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* Highlight Flash Animation for Scrolling to Pinned */
.msg-highlight .msg-bubble {
  animation: highlightFlash 1.2s ease-out;
}
@keyframes highlightFlash {
  0% { box-shadow: 0 0 0 3px var(--accent-glow), 0 0 20px var(--accent-glow); }
  100% { box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08); }
}

/* Reply Bar (Above Compose) */
#reply-bar {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  border-top: 1px solid var(--glass-border);
  background: var(--surface-alt);
  font-size: 0.78rem;
  color: var(--text-secondary);
  flex-shrink: 0;
}
#reply-bar.visible {
  display: flex;
}
.rb-label {
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
}
#rb-name {
  color: var(--accent-glow);
}
.rb-preview {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-muted);
}
.rb-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1rem;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
}
.rb-close:hover {
  color: var(--text-primary);
  background: var(--surface-hover);
}

/* Compose Bar (Bottom Input) */
#compose-bar {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--glass-border);
  background: var(--surface);
  flex-shrink: 0;
}

#code-toggle {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--surface-alt);
  border: 1px solid var(--glass-border);
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.76rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s;
}
#code-toggle:hover {
  background: var(--surface-hover);
  color: var(--text-primary);
}
#code-toggle.active {
  background: var(--accent-subtle);
  color: var(--accent-glow);
  border-color: var(--accent);
}

#msg-input {
  flex: 1;
  min-height: 42px;
  max-height: 120px;
  padding: 10px 14px;
  border-radius: 12px;
  background: var(--input-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9rem;
  line-height: 1.45;
  resize: none;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
#msg-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-subtle);
}
#msg-input.mono {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
}

#send-btn {
  width: 44px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  border: none;
  color: #ffffff;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 14px var(--accent-subtle);
  transition: transform 0.15s, opacity 0.2s;
}
#send-btn:hover {
  transform: translateY(-1px);
}
#send-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  transform: none;
}

@keyframes msgEntrance {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 600px) {
  .msg-wrap {
    max-width: 88%;
  }
  #compose-bar {
    padding: 8px 10px calc(8px + env(safe-area-inset-bottom, 0px));
  }
}