/* ====================================================================================
   Reset & Base
==================================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg-base: #0a0d12;
  --bg-panel: #0f1318;
  --bg-card: #151a22;
  --bg-hover: #1a2030;
  --bg-input: #111620;
  --border: #1e2635;
  --border-light: #253040;
  --accent: #3b82f6;
  --accent-dim: #1d4ed8;
  --accent-glow: rgba(59, 130, 246, .18);
  --green: #22c55e;
  --amber: #f59e0b;
  --purple: #a855f7;
  --red: #ef4444;
  --text-1: #e2e8f0;
  --text-2: #94a3b8;
  --text-3: #4b5563;
  --radius: 10px;
  --shadow: 0 4px 24px rgba(0, 0, 0, .5);
}

html,
body {
  height: 100%;
  overflow: hidden;
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg-base);
  color: var(--text-1);
  display: flex;
  flex-direction: column;
}

body[data-theme="light"] {
  --bg-base: #f3f6fb;
  --bg-panel: #ffffff;
  --bg-card: #f9fbff;
  --bg-hover: #edf3ff;
  --bg-input: #ffffff;
  --border: #d9e2ef;
  --border-light: #c8d4e5;
  --accent: #2563eb;
  --accent-dim: #1d4ed8;
  --accent-glow: rgba(37, 99, 235, .18);
  --green: #16a34a;
  --amber: #d97706;
  --purple: #7c3aed;
  --red: #dc2626;
  --text-1: #0f172a;
  --text-2: #334155;
  --text-3: #64748b;
  --shadow: 0 4px 20px rgba(15, 23, 42, .12);
}

body[data-theme="light"] #topbar .logo {
  background: linear-gradient(135deg, #1d4ed8, #7c3aed);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

body[data-theme="light"] .thread-item:hover,
body[data-theme="light"] .thread-item.active {
  background: #e8f0ff;
}

body[data-theme="light"] .badge-discuss {
  background: rgba(37, 99, 235, .14);
  color: #1d4ed8;
}

body[data-theme="light"] .badge-implement {
  background: rgba(22, 163, 74, .14);
  color: #15803d;
}

body[data-theme="light"] .badge-review {
  background: rgba(217, 119, 6, .14);
  color: #b45309;
}

body[data-theme="light"] .badge-done {
  background: rgba(124, 58, 237, .14);
  color: #6d28d9;
}

body[data-theme="light"] .badge-closed {
  background: rgba(100, 116, 139, .16);
  color: #475569;
}

body[data-theme="light"] .badge-archived {
  background: rgba(148, 163, 184, .2);
  color: #475569;
}

body[data-theme="light"] #online-presence {
  background: rgba(22, 163, 74, .14);
  border-color: rgba(22, 163, 74, .35);
  color: #166534;
}

body[data-theme="light"] #online-presence:hover {
  background: rgba(22, 163, 74, .2);
  border-color: rgba(22, 163, 74, .45);
}

body[data-theme="light"] .msg-sys-event {
  background: rgba(217, 119, 6, .1);
  border-color: rgba(217, 119, 6, .24);
  color: #92400e;
}

body[data-theme="light"] .ctx-item:hover {
  background: #e8f0ff;
}

body[data-theme="light"] .msg-row.message-has-mentions .bubble-v2 {
  background: linear-gradient(135deg, rgba(255, 235, 130, .12) 0%, rgba(255, 193, 7, .08) 100%);
  border-color: rgba(255, 193, 7, .4);
  box-shadow: inset 0 0 12px rgba(255, 193, 7, .1),
    0 0 20px rgba(255, 193, 7, .15);
}

/* ====================================================================================
   Top bar
==================================================================================== */
#topbar {
  height: 52px;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 12px;
  flex-shrink: 0;
  z-index: 10;
}

#topbar .logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 700;
  background: linear-gradient(135deg, #3b82f6, #a855f7);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -.3px;
}

#topbar .logo img {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  object-fit: cover;
  flex-shrink: 0;
}

#topbar .sep {
  flex: 1;
}

#status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
  animation: pulse-dot 2s infinite;
  cursor: default;
  flex-shrink: 0;
}

@keyframes pulse-dot {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: .4;
  }
}

#topbar .status-label {
  font-size: 12px;
  color: var(--text-2);
  cursor: default;
  user-select: none;
  text-decoration: underline dotted var(--border);
  text-underline-offset: 3px;
  transition: color 0.15s;
}

#topbar .status-label:hover {
  color: var(--text-1);
}

/* ====================================================================================
   Toolbar buttons — shared style for topbar + thread header icon buttons
   Applied via .toolbar-btn utility class; also targets acb-icon-button rendered buttons
==================================================================================== */

/* Base style shared by all icon-only toolbar buttons */
.toolbar-btn,
#btn-theme-toggle,
#btn-settings,
#thread-settings-btn,
#export-thread-btn,
#search-toggle-btn,
#desktop-sidebar-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  border-radius: 8px;
  border: 1px solid var(--border-light);
  background: transparent;
  color: var(--text-2);
  cursor: pointer;
  flex-shrink: 0;
  font-size: 14px;
  transition: background .15s, border-color .15s, color .15s;
}

.toolbar-btn:hover,
#btn-theme-toggle:hover,
#btn-settings:hover,
#thread-settings-btn:hover,
#export-thread-btn:hover,
#search-toggle-btn:hover,
#desktop-sidebar-toggle:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
  color: var(--accent);
}

.toolbar-btn:active,
#btn-theme-toggle:active,
#btn-settings:active,
#thread-settings-btn:active,
#export-thread-btn:active,
#search-toggle-btn:active,
#desktop-sidebar-toggle:active {
  transform: scale(.93);
}

body[data-theme="light"] .toolbar-btn,
body[data-theme="light"] #btn-theme-toggle,
body[data-theme="light"] #btn-settings,
body[data-theme="light"] #thread-settings-btn,
body[data-theme="light"] #export-thread-btn,
body[data-theme="light"] #search-toggle-btn,
body[data-theme="light"] #desktop-sidebar-toggle {
  color: #475569;
}

body[data-theme="light"] .toolbar-btn:hover,
body[data-theme="light"] #btn-theme-toggle:hover,
body[data-theme="light"] #btn-settings:hover,
body[data-theme="light"] #thread-settings-btn:hover,
body[data-theme="light"] #export-thread-btn:hover,
body[data-theme="light"] #search-toggle-btn:hover,
body[data-theme="light"] #desktop-sidebar-toggle:hover {
  background: #e8f0ff;
  border-color: #93c5fd;
  color: #1e40af;
}

/* Active (pressed) state for search toggle */
#search-toggle-btn.active {
  background: var(--accent-glow);
  border-color: var(--accent);
  color: var(--accent);
}

body[data-theme="light"] #search-toggle-btn.active {
  background: #dbeafe;
  border-color: #93c5fd;
  color: #1e40af;
}

/* ── scroll-to-top button ───────────────────────────────────────────────────── */
.scroll-top-btn {
  position: absolute;
  bottom: 12px;
  right: 16px;
  z-index: 10;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  border: 1px solid var(--border-light);
  background: var(--bg-panel);
  color: var(--text-2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 1px 6px rgba(0, 0, 0, .25);
  opacity: 0;
  pointer-events: none;
  transform: translateY(4px);
  transition: opacity .2s ease, transform .2s ease, background .15s, border-color .15s, color .15s;
}

.scroll-top-btn.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.scroll-top-btn:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
  color: var(--accent);
}

.scroll-top-btn:active {
  transform: scale(.93);
}

/* ====================================================================================
   Topbar buttons (non-icon CTA)
==================================================================================== */

/* ── New Thread button (CTA — keeps accent style) ───────────────────────────── */
#btn-new-thread {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: background .15s, transform .1s;
}

#btn-new-thread:hover {
  background: #2563eb;
}

#btn-new-thread:active {
  transform: scale(.97);
}

/* ====================================================================================
   Layout: sidebar + main
==================================================================================== */
#layout {
  display: flex;
  flex: 1;
  min-height: 0;
}

/* ---- Sidebar ---- */
#sidebar {
  width: 260px;
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

#sidebar-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
}

.stab {
  flex: 1;
  padding: 10px;
  font-size: 12px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  color: var(--text-3);
  transition: color .15s, border-color .15s;
  border-bottom: 2px solid transparent;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.stab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

#thread-pane {
  flex: 1;
  overflow-y: auto;
  display: block;
}

#thread-filter-wrap {
  border-bottom: 1px solid var(--border);
  padding: 8px 10px;
  position: relative;
}

#btn-thread-filter {
  width: 100%;
  background: var(--bg-card);
  color: var(--text-2);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 12px;
  text-align: left;
  cursor: pointer;
}

#btn-thread-filter:hover {
  background: var(--bg-hover);
}

#thread-filter-panel {
  display: none;
  position: absolute;
  left: 10px;
  right: 10px;
  top: 44px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 10px;
  box-shadow: var(--shadow);
  z-index: 20;
  padding: 8px;
}

#thread-filter-panel.visible {
  display: block;
}

.filter-actions {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
}

.filter-actions button {
  flex: 1;
  background: var(--bg-hover);
  color: var(--text-2);
  border: 1px solid var(--border-light);
  border-radius: 7px;
  font-size: 11px;
  padding: 5px 6px;
  cursor: pointer;
}

.filter-actions button:hover {
  background: #233047;
}

.filter-row {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  color: var(--text-1);
  padding: 4px 2px;
}

.filter-row input {
  accent-color: var(--accent);
}

/* Thread list */
.thread-item {
  padding: 12px 16px;
  cursor: pointer;
  border-left: 3px solid transparent;
  transition: background .15s, border-color .15s;
  position: relative;
}

.thread-item:hover {
  background: var(--bg-hover);
}

.thread-item.active {
  background: var(--bg-hover);
  border-left-color: var(--accent);
}

.thread-item.context-highlight {
  background: rgba(245, 158, 11, .1);
  border-left-color: #f59e0b;
}

body[data-theme="light"] .thread-item.context-highlight {
  background: rgba(245, 158, 11, .15);
  border-left-color: #d97706;
}

.thread-item .ti-topic {
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-1);
}

.thread-item .ti-meta {
  font-size: 11px;
  color: var(--text-3);
  margin-top: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 7px;
  border-radius: 20px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.badge-discuss {
  background: rgba(59, 130, 246, .15);
  color: #60a5fa;
}

.badge-implement {
  background: rgba(34, 197, 94, .12);
  color: #4ade80;
}

.badge-review {
  background: rgba(245, 158, 11, .12);
  color: #fbbf24;
}

.badge-done {
  background: rgba(168, 85, 247, .12);
  color: #c084fc;
}

.badge-closed {
  background: rgba(75, 85, 99, .15);
  color: var(--text-3);
}

.badge-archived {
  background: rgba(148, 163, 184, .16);
  color: #94a3b8;
}

/* Agent list */
.agent-item {
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--border);
}

.agent-avatar {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, #1d4ed8, #7c3aed);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.agent-avatar-interactive {
  cursor: pointer;
}

.agent-name {
  font-size: 13px;
  font-weight: 500;
}

.agent-desc {
  font-size: 11px;
  color: var(--text-3);
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 150px;
}

.online-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-left: auto;
}

.online-dot.on {
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
}

.online-dot.off {
  background: var(--text-3);
}

/* ---- Main area ---- */
#main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
}

/* Thread header */
#thread-header {
  padding: 0 20px;
  height: 52px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

#thread-header h2 {
  font-size: 15px;
  font-weight: 600;
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}


#online-presence {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 56px;
  height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid var(--border-light);
  background: rgba(34, 197, 94, .12);
  color: #86efac;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .01em;
  cursor: default;
  transition: background .15s, border-color .15s;
}

#online-presence:hover {
  background: rgba(34, 197, 94, .18);
  border-color: rgba(34, 197, 94, .45);
}

#online-count {
  white-space: nowrap;
}

/* Messages */
#messages-wrap {
  position: relative;
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;  /* system prompt stacked above chat-body */
  min-height: 0;
}

/* UI-07: system prompt area — full width, no scroll */
#sys-prompt-area {
  flex-shrink: 0;
  overflow: hidden;
}

/* UI-07: chat body = messages-scroll + nav-sidebar side by side */
#chat-body {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: row;
  overflow: hidden;
  position: relative;
}

/* UI-07: scroll container wrapping #messages */
#messages-scroll {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  min-height: 0;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-dim) var(--bg-panel);
}

#messages-scroll::-webkit-scrollbar {
  width: 8px;
}

#messages-scroll::-webkit-scrollbar-track {
  background: var(--bg-panel);
  border-radius: 4px;
}

#messages-scroll::-webkit-scrollbar-thumb {
  background: var(--accent-dim);
  border-radius: 4px;
  border: 2px solid var(--bg-panel);
}

#messages-scroll::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

#messages {
  flex: 1;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 0;
}

#messages.loading-history .msg-row,
#messages.loading-history .msg-sys-event {
  animation: none !important;
}

#messages>acb-empty-state {
  display: flex;
  flex: 1;
  min-height: 100%;
}

/* ---- Message rows (author-based coloring) ---- */
.msg-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  max-width: 82%;
  animation: bubble-in .2s ease;
}

.msg-row-left {
  align-self: flex-start;
}

.msg-row-right {
  align-self: flex-end;
  flex-direction: row-reverse;
}

@keyframes bubble-in {
  from {
    opacity: 0;
    transform: translateY(6px) scale(.98);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ── Messages with mentions (Phase 2 notification) ── */
.msg-row.message-has-mentions .bubble-v2 {
  background: linear-gradient(135deg, rgba(255, 250, 205, .08) 0%, rgba(255, 193, 7, .05) 100%);
  border-color: rgba(255, 193, 7, .3);
  box-shadow: inset 0 0 12px rgba(255, 193, 7, .08),
    0 0 20px rgba(255, 193, 7, .12);
}

.msg-row.message-has-mentions {
  position: relative;
}

.msg-row.message-has-mentions::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, #ff9800, #ffc107);
  border-radius: 2px;
}

.msg-avatar {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 600;
  letter-spacing: 0;
  margin-top: 2px;
}

.msg-avatar-interactive {
  cursor: pointer;
}

.msg-col {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.msg-row-right .msg-col {
  align-items: flex-end;
}

.msg-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  width: 100%;
}

.msg-row-left .msg-header .msg-copy-btn,
.msg-row-left .msg-header .msg-edit-btn {
  margin-left: 2px;
}

.msg-row-left .msg-header .msg-copy-btn {
  margin-left: auto;
}
/* ── Per-message copy button ───────────────────────────────────────────────── */
.msg-copy-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  padding: 0;
  border-radius: 6px;
  border: 1px solid var(--border-light);
  background: transparent;
  color: var(--text-2);
  cursor: pointer;
  flex-shrink: 0;
  opacity: 0;
  transition: opacity .15s, background .15s, border-color .15s, color .15s;
}

.msg-row:hover .msg-copy-btn {
  opacity: 1;
}

.msg-copy-btn:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
  color: var(--accent);
}

.msg-copy-btn--ok {
  border-color: var(--green) !important;
  color: var(--green) !important;
  background: transparent !important;
  opacity: 1 !important;
}

.msg-row-right .msg-header {
  justify-content: flex-end;
  }
  
  .msg-row-right .msg-header .msg-copy-btn {
    order: -1;
    margin-right: 4px;
  }
  
  .msg-row-right .msg-header .msg-edit-btn {
    order: -2;
    margin-right: 4px;
  }
  
  .msg-row-right .msg-header .msg-author-label,
  .msg-row-right .msg-header .msg-time-label {
    margin-left: 8px;
  }
  
  .msg-row-right .msg-header .msg-copy-btn {
    margin-right: auto;
}

.msg-author-label {
  font-weight: 600;
}

.msg-time-label {
  color: var(--text-3);
}

/* Subtle tail metadata for agent-authored messages. */
.msg-tail-meta {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 3px;
  padding: 0 2px;
  font-size: 14px;
  color: color-mix(in srgb, var(--text-3) 85%, transparent);
  opacity: 0.62;
  user-select: none;
}

.msg-tail-emoji {
  font-size: 11px;
  line-height: 1;
  filter: grayscale(18%) brightness(0.86);
  opacity: 0.9;
}

.msg-tail-name,
.msg-tail-time,
.msg-tail-dot {
  line-height: 1;
}

.msg-row-right .msg-tail-meta {
  justify-content: flex-end;
}

/* UP-17: Structured metadata indicators */
.handoff-badge {
  display: inline-block;
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 8px;
  background: var(--bg-input, rgba(100,160,255,0.12));
  color: var(--accent, #6496ff);
  border: 1px solid rgba(100,160,255,0.25);
  white-space: nowrap;
}

.stop-tag {
  display: inline-block;
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 8px;
  background: var(--bg-input, rgba(100,100,100,0.12));
  color: var(--text-3, #888);
  border: 1px solid rgba(100,100,100,0.2);
  white-space: nowrap;
}

.stop-tag-convergence { background: rgba(34,197,94,0.12); color: #22c55e; border-color: rgba(34,197,94,0.25); }
.stop-tag-complete    { background: rgba(34,197,94,0.12); color: #22c55e; border-color: rgba(34,197,94,0.25); }
.stop-tag-timeout     { background: rgba(251,191,36,0.12); color: #f59e0b; border-color: rgba(251,191,36,0.25); }
.stop-tag-error       { background: rgba(239,68,68,0.12); color: #ef4444; border-color: rgba(239,68,68,0.25); }
.stop-tag-impasse     { background: rgba(168,85,247,0.12); color: #a855f7; border-color: rgba(168,85,247,0.25); }

/* Priority badges (UP-16) */
.msg-priority-badge {
  display: inline-flex;
  align-items: center;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 1px 6px;
  border-radius: 4px;
  border: 1px solid transparent;
  vertical-align: middle;
  margin-left: 4px;
}
.msg-priority-urgent {
  background: rgba(239,68,68,0.14);
  color: #ef4444;
  border-color: rgba(239,68,68,0.3);
}
.msg-priority-system {
  background: rgba(59,130,246,0.14);
  color: #3b82f6;
  border-color: rgba(59,130,246,0.3);
}

/* Reaction pills (UP-13) */
.msg-reactions {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 4px;
}
.reaction-pill {
  display: inline-flex;
  align-items: center;
  font-size: 11px;
  padding: 1px 7px;
  border-radius: 12px;
  background: rgba(100,100,120,0.12);
  border: 1px solid rgba(100,100,120,0.22);
  color: var(--text-secondary, #aaa);
  cursor: default;
  white-space: nowrap;
}
body[data-theme="light"] .reaction-pill {
  background: rgba(0,0,0,0.06);
  border-color: rgba(0,0,0,0.12);
  color: #555;
}

body[data-theme="light"] .handoff-badge {
  background: rgba(59,130,246,0.10);
  color: #2563eb;
}

/* Reply-to quote block (UP-14) */
.msg-reply-quote {
  display: inline-block;
  font-size: 0.78em;
  padding: 2px 8px;
  margin-bottom: 4px;
  border-left: 3px solid rgba(150,150,255,0.6);
  background: rgba(150,150,255,0.08);
  border-radius: 0 4px 4px 0;
  color: rgba(200,200,220,0.8);
  font-style: normal;
  max-width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
body[data-theme="light"] .msg-reply-quote {
  border-left-color: rgba(80,80,200,0.4);
  background: rgba(80,80,200,0.06);
  color: #555;
}

/* UI-13: reply-quote clickable button reset */
button.msg-reply-quote {
  cursor: pointer;
  background: none;
  border: none;
  padding: 2px 8px;
  font: inherit;
  color: inherit;
  text-align: left;
  display: inline-block;
}
button.msg-reply-quote:hover {
  text-decoration: underline dotted;
  opacity: 0.85;
}

/* UI-13: jump highlight on target message */
.msg-jump-highlight {
  outline: 2px solid var(--accent, #7c6af7);
  outline-offset: 3px;
  border-radius: 6px;
  transition: outline 0.3s ease-out;
}

body[data-theme="light"] .stop-tag {
  background: rgba(100,100,100,0.08);
  color: #555;
}

.bubble-v2 {
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 13.5px;
  line-height: 1.6;
  word-break: break-word;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-left-width: 3px;
  max-width: 100%;
  min-width: 240px;
}

.msg-row-right .bubble-v2 {
  border-left-width: 1px;
  border-right-width: 3px;
}

/* Markdown rendering inside message bubbles */
.bubble-v2 h1,
.bubble-v2 h2,
.bubble-v2 h3,
.bubble-v2 h4,
.bubble-v2 h5,
.bubble-v2 h6 {
  margin: 12px 0 6px;
  line-height: 1.3;
  color: var(--text-1);
}

.bubble-v2 h1 {
  font-size: 16px;
}

.bubble-v2 h2 {
  font-size: 14.5px;
}

.bubble-v2 h3 {
  font-size: 13.5px;
}

.bubble-v2 h4,
.bubble-v2 h5,
.bubble-v2 h6 {
  font-size: 13px;
}

.bubble-v2 h1:first-child,
.bubble-v2 h2:first-child,
.bubble-v2 h3:first-child {
  margin-top: 0;
}

.bubble-v2 p {
  margin: 6px 0;
}

.bubble-v2 p:first-child {
  margin-top: 0;
}

.bubble-v2 p:last-child {
  margin-bottom: 0;
}

.bubble-v2 ul,
.bubble-v2 ol {
  margin: 6px 0;
  padding-left: 20px;
}

.bubble-v2 li {
  margin: 2px 0;
}

.bubble-v2 blockquote {
  margin: 8px 0;
  padding: 4px 12px;
  border-left: 3px solid var(--accent);
  color: var(--text-2);
  font-style: italic;
  background: rgba(59, 130, 246, .05);
  border-radius: 0 6px 6px 0;
}

.bubble-v2 code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  background: rgba(255, 255, 255, .06);
  padding: 1px 5px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

body[data-theme="light"] .bubble-v2 code {
  background: rgba(0, 0, 0, .05);
}

.bubble-v2 pre {
  margin: 8px 0;
  padding: 10px 12px;
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow-x: auto;
}

.bubble-v2 pre code {
  background: none;
  padding: 0;
  border: none;
  font-size: 12px;
  line-height: 1.5;
}

.bubble-v2 table {
  width: 100%;
  border-collapse: collapse;
  margin: 8px 0;
  font-size: 12px;
}

.bubble-v2 th,
.bubble-v2 td {
  padding: 5px 10px;
  border: 1px solid var(--border-light);
  text-align: left;
}

.bubble-v2 th {
  background: rgba(59, 130, 246, .08);
  font-weight: 600;
  color: var(--text-1);
}

.bubble-v2 hr {
  border: none;
  border-top: 1px solid var(--border-light);
  margin: 10px 0;
}

.bubble-v2 a {
  color: var(--accent);
  text-decoration: none;
}

.bubble-v2 a:hover {
  text-decoration: underline;
}

.bubble-v2 strong {
  color: var(--text-1);
}

.bubble-v2 pre {
  margin: 8px 0;
  padding: 10px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: 10px;
  overflow: auto;
}

.code-block {
  position: relative;
}

.code-block pre {
  padding-top: 34px;
}

.code-copy {
  position: absolute;
  top: 6px;
  right: 6px;
  font-size: 11px;
  padding: 4px 8px;
  border-radius: 8px;
  border: 1px solid var(--border-light);
  background: var(--bg-card);
  color: var(--text-2);
  cursor: pointer;
}

.code-copy:active {
  transform: translateY(1px);
}

.code-copy:disabled {
  cursor: default;
  opacity: .8;
}

.bubble-v2 pre code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 12.5px;
  line-height: 1.5;
  white-space: pre;
}

.bubble-v2 code.inline-code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 12.5px;
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 1px 6px;
}

/* System event row (centered) */
.msg-sys-event {
  align-self: center;
  max-width: 80%;
  padding: 6px 14px;
  background: rgba(245, 158, 11, .07);
  border: 1px solid rgba(245, 158, 11, .18);
  border-radius: 20px;
  font-size: 11.5px;
  font-style: italic;
  color: #fbbf24;
  text-align: center;
  animation: bubble-in .2s ease;
}

.msg-sys-admin-timeout {
  align-self: center;
  width: min(760px, 92%);
}

.msg-sys-admin-timeout-card {
  width: min(760px, 100%);
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px 12px;
  border: 1px solid rgba(245, 158, 11, .24);
  border-radius: 14px;
  background: rgba(245, 158, 11, .05);
}

.msg-sys-admin-timeout-main {
  align-self: stretch;
  padding: 0;
  color: #fbbf24;
  font-size: 12px;
  font-style: italic;
  text-align: center;
  line-height: 1.45;
}

.msg-sys-admin-timeout-note-inline {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid rgba(245, 158, 11, .24);
  border-radius: 12px;
  background: rgba(245, 158, 11, .05);
  color: var(--text-2);
  font-size: 12px;
  line-height: 1.4;
  text-align: center;
}

.msg-sys-admin-timeout-note-icon {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1px solid rgba(245, 158, 11, .45);
  color: #fbbf24;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  font-style: normal;
  flex: 0 0 auto;
}

.msg-sys-admin-timeout-note-text {
  max-width: 90ch;
}

body[data-theme="light"] .msg-sys-admin-timeout-card {
  border-color: rgba(217, 119, 6, .28);
  background: rgba(217, 119, 6, .06);
}

body[data-theme="light"] .msg-sys-admin-timeout-main {
  color: #b45309;
}

body[data-theme="light"] .msg-sys-admin-timeout-note-inline {
  border-color: rgba(217, 119, 6, .28);
  background: rgba(217, 119, 6, .06);
  color: #92400e;
}

body[data-theme="light"] .msg-sys-admin-timeout-note-icon {
  border-color: rgba(217, 119, 6, .42);
  color: #b45309;
}

/* System prompt collapsable bubble (UI-06) — inherits .msg-sys-event palette */
.msg-sys-prompt {
  position: relative;
  align-self: stretch;
  margin: 8px 8px 16px;
  border: 1px solid rgba(245, 158, 11, .18);
  border-radius: 20px;
  font-size: 11.5px;
  font-style: italic;
  color: #fbbf24;
  animation: bubble-in .2s ease;
}

.msg-sys-prompt-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 32px;
  padding: 6px 14px;
  background: rgba(245, 158, 11, .10);
  border: none;
  border-radius: 20px;
  cursor: pointer;
  font-size: 11.5px;
  font-style: italic;
  font-weight: 600;
  color: #fbbf24;
  text-align: left;
  gap: 8px;
}

.msg-sys-prompt-header.is-expanded {
  border-radius: 20px 20px 0 0;
}

.msg-sys-prompt-header:hover {
  background: rgba(245, 158, 11, .13);
}

.msg-sys-prompt-chevron {
  font-size: 10px;
  font-style: normal;
  flex-shrink: 0;
}

.msg-sys-prompt-body {
  position: relative;
  max-height: 320px;
  overflow-y: auto;
  border-radius: 0 0 20px 20px;
  border: none;
  border-top: 1px solid rgba(245, 158, 11, .18);
  padding: 8px 14px;
  transition: max-height 0.2s ease, padding 0.2s ease;
  font-size: 11.5px;
  font-style: normal;
  color: #fbbf24;
  background: rgba(245, 158, 11, .04);
  line-height: 1.6;
  scrollbar-width: thin;
  scrollbar-color: rgba(245, 158, 11, .35) transparent;
}

.msg-sys-prompt-body::-webkit-scrollbar {
  width: 4px;
}

.msg-sys-prompt-body::-webkit-scrollbar-track {
  background: transparent;
}

.msg-sys-prompt-body::-webkit-scrollbar-thumb {
  background: rgba(245, 158, 11, .35);
  border-radius: 4px;
}

.msg-sys-prompt-body::-webkit-scrollbar-thumb:hover {
  background: rgba(245, 158, 11, .6);
}

.msg-sys-prompt-body.collapsed {
  max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  overflow: hidden;
  border-top-color: transparent;
}

/* Copy button inside the prompt body */
.msg-sys-prompt-copy-btn {
  position: absolute;
  bottom: 8px;
  right: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  padding: 0;
  border-radius: 6px;
  border: 1px solid rgba(245, 158, 11, .25);
  background: transparent;
  color: rgba(251, 191, 36, .5);
  cursor: pointer;
  opacity: 0;
  transition: opacity .15s, background .15s, border-color .15s, color .15s;
}

.msg-sys-prompt-body:hover .msg-sys-prompt-copy-btn {
  opacity: 1;
}

.msg-sys-prompt-copy-btn:hover {
  background: rgba(245, 158, 11, .08);
  border-color: rgba(245, 158, 11, .5);
  color: #fbbf24;
}

body[data-theme="light"] .msg-sys-prompt {
  background: rgba(217, 119, 6, .1);
  border-color: rgba(217, 119, 6, .24);
  color: #92400e;
}

body[data-theme="light"] .msg-sys-prompt-header {
  color: #92400e;
}

body[data-theme="light"] .msg-sys-prompt-body {
  color: #92400e;
  border-top-color: rgba(217, 119, 6, .24);
  background: rgba(217, 119, 6, .04);
}

/* Override bubble-v2 heading/strong colors to stay in amber palette */
.msg-sys-prompt-body h1,
.msg-sys-prompt-body h2,
.msg-sys-prompt-body h3,
.msg-sys-prompt-body h4,
.msg-sys-prompt-body h5,
.msg-sys-prompt-body h6,
.msg-sys-prompt-body strong {
  color: inherit;
}

.msg-sys-admin-card {
  display: flex;
    flex-direction: column;
  align-self: center;
  width: min(760px, 92%);
  border: 1px solid rgba(245, 158, 11, .35);
  border-radius: 12px;
  background: rgba(245, 158, 11, .08);
  padding: 10px 12px;
  animation: bubble-in .2s ease;
}

.msg-sys-admin-title {
  font-size: 12px;
  font-weight: 700;
  color: #fbbf24;
  margin-bottom: 6px;
}

.msg-sys-admin-body {
  font-size: 12px;
  color: var(--text-1);
  margin-bottom: 8px;
}

.msg-sys-admin-human-note {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 8px;
  padding: 8px 10px;
  border: 1px solid rgba(245, 158, 11, .24);
  border-radius: 10px;
  background: rgba(245, 158, 11, .05);
  color: var(--text-2);
  font-size: 11.5px;
  line-height: 1.4;
}

.msg-sys-admin-human-note-icon {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 1px solid rgba(245, 158, 11, .45);
  color: #fbbf24;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  flex: 0 0 auto;
}

.msg-sys-admin-human-note-text {
  max-width: 88ch;
}

.msg-sys-admin-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.msg-sys-admin-btn {
  border: 1px solid var(--border-light);
  background: var(--bg-card);
  color: var(--text-1);
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 12px;
  cursor: pointer;
}

.msg-sys-admin-btn:hover {
  border-color: var(--accent);
}

.msg-sys-admin-btn:disabled {
  opacity: .6;
  cursor: not-allowed;
}

.msg-sys-admin-btn-switch {
  border-color: rgba(16, 185, 129, .45);
}

.msg-sys-admin-status {
  margin-top: 6px;
  font-size: 11px;
  color: var(--text-2);
}

.msg-sys-admin-card.resolved {
  border-color: rgba(34, 197, 94, .35);
  background: rgba(34, 197, 94, .08);
}

body[data-theme="light"] .msg-sys-admin-card {
  background: rgba(217, 119, 6, .08);
  border-color: rgba(217, 119, 6, .32);
}

body[data-theme="light"] .msg-sys-admin-human-note {
  border-color: rgba(217, 119, 6, .28);
  background: rgba(217, 119, 6, .06);
  color: #92400e;
}

body[data-theme="light"] .msg-sys-admin-human-note-icon {
  border-color: rgba(217, 119, 6, .42);
  color: #b45309;
}

.bubble-meta {
  font-size: 10px;
  color: var(--text-3);
  margin: 0 4px;
}

.typing-bubble {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 10px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 14px 14px 14px 4px;
  max-width: 80px;
}

.typing-bubble span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-3);
  display: block;
  animation: bouncing .9s infinite;
}

.typing-bubble span:nth-child(2) {
  animation-delay: .15s;
}

.typing-bubble span:nth-child(3) {
  animation-delay: .3s;
}

@keyframes bouncing {

  0%,
  60%,
  100% {
    transform: translateY(0);
  }

  30% {
    transform: translateY(-5px);
    background: var(--accent);
  }
}

/* Empty state */
#empty-state {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-3);
  gap: 12px;
}

#empty-state .es-icon {
  font-size: 48px;
  opacity: .4;
}

#empty-state .es-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-2);
}

#empty-state .es-sub {
  font-size: 13px;
}

#empty-state .es-ad-banner {
  display: none;
  margin-top: 8px;
  max-width: 520px;
  padding: 10px 14px;
  border: 1px solid rgba(245, 158, 11, .55);
  border-radius: 10px;
  background: linear-gradient(135deg, #fef08a 0%, #facc15 100%);
  color: #3f2a00;
  font-size: 12.5px;
  font-weight: 700;
  line-height: 1.45;
  text-align: center;
  box-shadow: 0 10px 24px rgba(250, 204, 21, .18);
}

#empty-state .es-ad-banner-main {
  font-size: 13px;
  font-weight: 700;
}

#empty-state .es-ad-banner-highlight {
  margin-top: 6px;
  font-size: 12.5px;
  font-weight: 800;
  line-height: 1.35;
}

#empty-state .es-ad-banner-note {
  margin-top: 6px;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.4;
  color: rgba(63, 42, 0, .78);
}

body.show-ad #empty-state .es-ad-banner {
  display: block;
}

body[data-theme="light"] #empty-state .es-ad-banner {
  border-color: rgba(217, 119, 6, .45);
  color: #5b3a00;
}

body[data-theme="light"] #empty-state .es-ad-banner-note {
  color: rgba(91, 58, 0, .82);
}

/* Compose */
#compose {
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  display: none;
  gap: 10px;
  align-items: flex-end;
  background: var(--bg-panel);
}

#compose.visible {
  display: flex;
}

#compose-author-wrap {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  border-radius: 10px;
  flex-shrink: 0;
  align-self: flex-start;
  height: 42px;
  box-sizing: border-box;
  transition: border-color .15s;
}

#compose-author-wrap:focus-within {
  border-color: var(--accent) !important;
}

#compose-author-avatar {
  font-size: 18px;
  line-height: 1;
  flex-shrink: 0;
}

#compose-author {
  background: transparent;
  border: none;
  color: var(--text-1);
  font-size: 13.5px;
  font-family: inherit;
  width: 72px;
  text-align: center;
  box-sizing: border-box;
}

#compose-author:focus {
  outline: none;
}

#compose-input {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  color: var(--text-1);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 13.5px;
  resize: none;
  min-height: 42px;
  max-height: 140px;
  font-family: inherit;
  line-height: 1.5;
  transition: border-color .15s;
}

#compose-input:focus {
  outline: none;
  border-color: var(--accent);
}

#compose-input:empty::before {
  content: attr(placeholder);
  color: var(--text-3);
  pointer-events: none;
}

#btn-send {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 10px;
  width: 40px;
  height: 40px;
  cursor: pointer;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: background .15s, transform .1s;
}

#btn-send:hover {
  background: #2563eb;
}

#btn-send:active {
  transform: scale(.93);
}

/** Agent Status Bar **/
#agent-status-bar {
  display: flex;
  background: var(--bg-base);
  border-top: 1px solid var(--border-light);
  padding: 6px 12px;
    height: 68px;
  overflow-x: auto;
  overflow-y: hidden;
  gap: 10px;
  font-size: 12px;
}

#agent-status-list {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: nowrap;
}

/* ── Agent Card ── */
.agent-status-item {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 4px;
  padding: 4px;
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  white-space: nowrap;
  flex-shrink: 0;
  color: var(--text-1);
  cursor: default;
  transition: background 0.15s;
  box-sizing: border-box;
}
.agent-status-item:hover {
  background: var(--bg-hover, var(--bg-input));
  filter: brightness(1.08);
}

/* Left: 48x48 avatar emoji */
.asi-avatar {
  width: 48px;
  height: 48px;
  font-size: 40px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* Right: 24x48 status panel with two 12x24 boxes */
.asi-status-panel {
  display: flex;
  flex-direction: column;
  width: 24px;
  height: 48px;
  gap: 0;
  flex-shrink: 0;
}

/* Top box: 24x24 online status */
.asi-status-box {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  line-height: 1;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  background: var(--bg-hover, rgba(255,255,255,0.05));
}

/* Bottom box: 24x24 transport type */
.asi-transport-box {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  line-height: 1;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  background: var(--bg-hover, rgba(255,255,255,0.05));
}

/* State emoji (legacy class for compatibility) */
.asi-state-emoji {
  font-size: 14px;
}

/* Transport emoji (legacy class for compatibility) */
.asi-transport {
  font-size: 11px;
}

.asi-transport-emoji {
  display: block;
  line-height: 1;
  pointer-events: none;
}

/* block pointer-events on direct children of tooltip boxes so mouseover target is the box itself */
.asi-status-box > *,
.asi-transport-box > * {
  pointer-events: none;
}

/* Compact mode for >1hr offline */
.agent-status-item--compact {
  display: flex;
  flex-direction: row;
  gap: 2px;
  padding: 2px;
}

.agent-status-item--compact .asi-avatar {
  width: 24px;
  height: 24px;
  font-size: 18px;
  flex-shrink: 0;
}

/* Dim avatar for offline agents */
.agent-status-item[data-state="offline"] .asi-avatar {
  filter: grayscale(1);
  opacity: 0.72;
}

.skills-badge {
  display: inline-block;
  font-size: 10px;
  padding: 1px 5px;
  border-radius: 8px;
  background: var(--color-border, #3a3a3a);
  color: var(--color-text-muted, #888);
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

body[data-theme="light"] .skills-badge {
  background: #e0e0e0;
  color: #555;
}

#agent-status-info {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  cursor: help;
  padding: 4px 8px;
  border-radius: 4px;
  transition: background-color 0.2s;
  flex-shrink: 0;
  position: relative;
}

#agent-status-info:hover {
  background-color: var(--bg-input);
}

.acb-tooltip-info .state-item {
  margin-bottom: 8px;
}

.acb-tooltip-info .state-item:last-child {
  margin-bottom: 0;
}

.acb-tooltip-info .state-emoji {
  font-weight: bold;
  margin-right: 6px;
}

.acb-tooltip-info strong {
  color: var(--text-1);
}

/* ====================================================================================
   Modal
==================================================================================== */
#modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .7);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  animation: fade-in .15s ease;
}

#modal-overlay.visible {
  display: flex;
}

@keyframes fade-in {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

#modal {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 14px;
  padding: 28px;
  width: 440px;
  max-width: 90vw;
  box-shadow: var(--shadow);
  animation: modal-in .2s ease;
}

@keyframes modal-in {
  from {
    opacity: 0;
    transform: scale(.95) translateY(-10px);
  }

  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

#modal h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 0px;
}

#modal-topic {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  color: var(--text-1);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 14px;
  font-family: inherit;
  margin-bottom: 16px;
}

#modal-topic:focus {
  outline: none;
  border-color: var(--accent);
}

.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

/* UP-18: Template selector in thread creation modal */
.template-selector-wrap {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 16px;
}

.template-selector-label {
  font-size: 11px;
  color: var(--text-3);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

#modal-template {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  color: var(--text-1);
  border-radius: 10px;
  padding: 8px 12px;
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
}

#modal-template:focus {
  outline: none;
  border-color: var(--accent);
}

.template-description {
  font-size: 11px;
  color: var(--text-3);
  font-style: italic;
  min-height: 14px;
}

.btn-secondary {
  background: var(--bg-hover);
  color: var(--text-2);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 8px 18px;
  font-size: 13px;
  cursor: pointer;
  font-family: inherit;
  transition: background .15s;
}

.btn-secondary:hover {
  background: var(--border-light);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 8px 18px;
  font-size: 13px;
  cursor: pointer;
  font-family: inherit;
  transition: background .15s;
}

.btn-primary:hover {
  background: #2563eb;
}

.btn-primary:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.btn-primary:disabled:hover {
  background: var(--accent);
}

/* Thread context menu */
#thread-context-menu {
  position: fixed;
  min-width: 150px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 10px;
  box-shadow: var(--shadow);
  padding: 6px;
  z-index: 1200;
  display: none;
}

#thread-context-menu.visible {
  display: block;
}

.ctx-item {
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  color: var(--text-1);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 12px;
  cursor: pointer;
}

.ctx-item:hover {
  background: var(--bg-hover);
}

.ctx-item:disabled {
  color: var(--text-3);
  cursor: not-allowed;
}

.ctx-divider {
  margin: 4px 0;
  border: none;
  border-top: 1px solid rgba(255, 255, 255, .1);
}

body[data-theme="light"] .ctx-divider {
  border-top-color: rgba(0, 0, 0, .1);
}

.ctx-item--destructive {
  color: #ef4444;
}

.ctx-item--destructive:hover {
  background: rgba(239, 68, 68, .12);
}

/* Context menu submenu */
.ctx-submenu-container {
  position: relative;
}

.ctx-submenu-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ctx-submenu-arrow {
  font-size: 10px;
  margin-left: 8px;
  color: var(--text-3);
  transition: transform 0.15s ease;
}

.ctx-submenu {
  position: absolute;
  left: 100%;
  top: 0;
  min-width: 150px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 10px;
  box-shadow: var(--shadow);
  padding: 6px;
  display: none;
  z-index: 1210;
}

.ctx-submenu-container:hover > .ctx-submenu,
.ctx-submenu-container:focus-within > .ctx-submenu {
  display: block;
}

.ctx-submenu-container:hover > .ctx-submenu-trigger .ctx-submenu-arrow {
  transform: rotate(90deg);
}

/* ── Confirm dialog ───────────────────── */
acb-confirm-dialog dialog {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 14px;
  padding: 24px 28px;
  width: 420px;
  max-width: 90vw;
  box-shadow: var(--shadow);
  color: var(--text-1);
  margin: auto;
}

acb-confirm-dialog dialog::backdrop {
  background: rgba(0, 0, 0, .55);
}

acb-confirm-dialog .confirm-title {
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 12px;
}

acb-confirm-dialog .confirm-message {
  font-size: 13px;
  color: var(--text-2);
  margin: 0 0 20px;
  line-height: 1.5;
}

acb-confirm-dialog .confirm-message strong {
  color: var(--text-1);
}

acb-confirm-dialog .confirm-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin: 0;
  padding: 0;
  list-style: none;
}

.btn-destructive {
  background: #dc2626;
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 8px 18px;
  font-size: 13px;
  cursor: pointer;
  font-family: inherit;
  transition: background .15s;
}

.btn-destructive:hover {
  background: #b91c1c;
}

/* ── Input dialog ───────────────────── */
acb-input-dialog dialog {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 14px;
  padding: 24px 28px;
  width: 420px;
  max-width: 90vw;
  box-shadow: var(--shadow);
  color: var(--text-1);
  margin: auto;
}

acb-input-dialog dialog::backdrop {
  background: rgba(0, 0, 0, .55);
}

acb-input-dialog .input-title {
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 12px;
}

acb-input-dialog .input-message {
  font-size: 13px;
  color: var(--text-2);
  margin: 0 0 16px;
  line-height: 1.5;
}

acb-input-dialog .input-field {
  width: 100%;
  padding: 8px 12px;
  font-size: 13px;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  background: var(--bg-panel);
  color: var(--text-1);
  font-family: inherit;
  margin: 0 0 20px;
  box-sizing: border-box;
  transition: border-color .15s, background .15s;
}

acb-input-dialog .input-field:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--bg-panel);
}

acb-input-dialog .input-field::placeholder {
  color: var(--text-3);
}

acb-input-dialog .input-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin: 0;
  padding: 0;
  list-style: none;
}

#footer-link {
  display: inline-flex;
  align-items: center;
  font-size: 11px;
  color: var(--text-3);
  opacity: .72;
  margin-left: 2px;
}

#footer-link a {
  color: inherit;
  text-decoration: none;
}

#footer-link a:hover {
  color: var(--text-2);
  text-decoration: underline;
}

#topbar-note-github {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border-radius: 6px;
  border: 1px solid #b45309;
  background: #facc15;
  color: #111827;
  font-size: 11px;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

#topbar-note-github:hover {
  background: #eab308;
  color: #111827;
}

#topbar-note-github code {
  background: rgba(255, 255, 255, 0.55);
  border-radius: 4px;
  padding: 1px 4px;
  font-size: 11px;
  color: #111827;
}

#topbar-note-pypi {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: 6px;
  border: 1px solid #b45309;
  background: #facc15;
  color: #111827;
  font-size: 11px;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

#topbar-note-pypi:hover {
  background: #eab308;
  color: #111827;
}

body[data-theme="light"] #topbar-note-github {
  background: #f59e0b;
  border-color: #92400e;
}

body[data-theme="light"] #topbar-note-pypi {
  background: #f59e0b;
  border-color: #92400e;
  color: #111827;
}

/* Scrollbar — same style as #messages (accent blue) */
#thread-pane {
  scrollbar-width: thin;
  scrollbar-color: var(--accent-dim) var(--bg-panel);
}

#thread-pane::-webkit-scrollbar {
  width: 8px;
}

#thread-pane::-webkit-scrollbar-track {
  background: var(--bg-panel);
  border-radius: 4px;
}

#thread-pane::-webkit-scrollbar-thumb {
  background: var(--accent-dim);
  border-radius: 4px;
}

#thread-pane::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

/* ---- Agent tooltip (custom, copy-enabled) -------------------------------------------------------------- */
/* Tooltip container styles for AcbTooltip web component */
#acb-global-tooltip {
  pointer-events: none;
}

#acb-global-tooltip.interactive {
  pointer-events: auto;
}

/* Agent tooltip specific styles */
.acb-tooltip-agent {
  width: min(380px, calc(100vw - 24px));
  padding: 10px;
}

.agent-tip-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 8px;
}

.agent-tip-meta {
  font-size: 11px;
  color: var(--text-2);
  margin-bottom: 8px;
  line-height: 1.5;
}

.agent-tip-meta code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-1);
}

.agent-tip-prompt {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-input);
  color: var(--text-1);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  line-height: 1.45;
  padding: 8px;
  max-height: 180px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

.agent-tip-actions {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.agent-tip-actions button {
  flex: 1;
  border: 1px solid var(--border-light);
  background: var(--bg-hover);
  color: var(--text-1);
  border-radius: 8px;
  font-size: 11px;
  font-weight: 600;
  padding: 6px 8px;
  cursor: pointer;
}

.agent-tip-actions button:hover {
  border-color: var(--accent);
}

.agent-tip-status {
  margin-top: 8px;
  padding-top: 7px;
  border-top: 1px solid var(--border-light);
  font-size: 11px;
  color: var(--text-2, #aaa);
  line-height: 1.4;
}

/* ====================================================================================
   Server Status Tooltip (.acb-tooltip-srv / .srv-tip-*)
==================================================================================== */

.acb-tooltip-srv {
  padding: 0;
  min-width: 220px;
}

.srv-tip-card {
  padding: 10px 12px;
  font-size: 11.5px;
  line-height: 1.5;
}

.srv-tip-header {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 8px;
}

.srv-tip-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.srv-tip-dot--on  { background: var(--green);  box-shadow: 0 0 6px var(--green); }
.srv-tip-dot--off { background: var(--red);    box-shadow: 0 0 6px var(--red); }

.srv-tip-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-1);
  flex: 1;
}

.srv-tip-state {
  font-size: 10.5px;
  font-weight: 600;
  color: var(--text-2);
}

.srv-tip-divider {
  height: 1px;
  background: var(--border);
  margin: 6px 0;
  opacity: 0.6;
}

.srv-tip-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 1.5px 0;
}

.srv-tip-row--sub {
  align-items: flex-start;
  gap: 4px;
}

.srv-tip-key {
  color: var(--text-2);
  font-size: 11px;
  flex-shrink: 0;
}

.srv-tip-val {
  color: var(--text-1);
  font-size: 11px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.srv-tip-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 4px 0 2px;
}

.srv-tip-badge {
  background: var(--bg-hover);
  border: 1px solid var(--border-light);
  border-radius: 10px;
  padding: 1px 7px;
  font-size: 10px;
  color: var(--text-2);
}

.srv-tip-badge b {
  color: var(--accent);
}

.srv-tip-rate {
  display: inline-block;
  background: var(--bg-hover);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 1px 6px;
  font-size: 10px;
  color: var(--text-2);
  font-variant-numeric: tabular-nums;
  margin-left: 3px;
}

/* ====================================================================================
   Mobile Responsive Design
==================================================================================== */

/* Collapsed sidebar */
#sidebar.collapsed {
  width: 0;
  overflow: hidden;
  border-right: none;
}

/* Hide hamburger menu on desktop */
#mobile-menu-btn {
  display: none;
}

/* Mobile styles (max-width: 768px) */
@media screen and (max-width: 768px) {
  /* Hide desktop toggle, show mobile hamburger */
  #desktop-sidebar-toggle {
    display: none;
  }

  /* Show hamburger menu */
  #mobile-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 1px solid var(--border-light);
    border-radius: 8px;
    color: var(--text-1);
    font-size: 20px;
    cursor: pointer;
    margin-right: 8px;
    flex-shrink: 0;
  }

  #mobile-menu-btn:hover {
    background: var(--bg-hover);
  }

  /* Topbar adjustments */
  #topbar {
    padding: 8px 12px;
    gap: 8px;
  }

  #topbar .logo {
    font-size: 14px;
  }

  #topbar .logo img {
    width: 20px;
    height: 20px;
  }

  #footer-link {
    display: none;
  }

  #topbar-note-github {
    display: none !important;
  }

  #topbar-note-pypi {
    display: none !important;
  }

  #topbar .sep {
    display: none;
  }

  #status-dot {
    width: 8px;
    height: 8px;
  }

  .status-label {
    font-size: 11px;
  }

  /* Hide some buttons on mobile */
  #btn-theme-toggle,
  #btn-settings {
    display: none;
  }

  #btn-new-thread {
    padding: 6px 10px;
    font-size: 12px;
  }

  /* Sidebar as drawer */
  #sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100vh;
    z-index: 1000;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    box-shadow: var(--shadow);
  }

  #sidebar.open {
    transform: translateX(0);
  }

  /* Overlay when sidebar is open */
  #sidebar-overlay {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
  }

  #sidebar-overlay.visible {
    opacity: 1;
    pointer-events: auto;
  }

  /* Main area full width */
  #main {
    width: 100%;
  }

  /* Thread header */
  acb-thread-header {
    padding: 8px 12px;
  }

  acb-thread-header .thread-title {
    font-size: 14px;
  }

  /* Messages area */
  #messages {
    padding: 8px;
  }

  .msg-row {
    padding: 10px 8px;
    margin-bottom: 8px;
  }

  .msg-avatar {
    width: 32px;
    height: 32px;
    font-size: 14px;
  }

  .msg-author-label {
    font-size: 12px;
  }

  .msg-time-label {
    font-size: 10px;
  }

  .msg-tail-meta {
    font-size: 9px;
  }

  .bubble-v2 {
    padding: 10px 12px;
    font-size: 13px;
    line-height: 1.5;
  }

  /* Compose area */
  acb-compose-shell {
    padding: 8px;
  }

  acb-compose-shell textarea {
    font-size: 14px;
    padding: 10px;
    min-height: 44px;
  }

  acb-compose-shell button {
    min-height: 44px;
    min-width: 44px;
  }

  /* Agent status bar */
  #agent-status-bar {
    padding: 6px 8px;
  }

  #agent-status-list {
    gap: 4px;
  }

  /* Context menu full width on mobile */
  #thread-context-menu {
    left: 10px !important;
    right: 10px !important;
    width: auto !important;
    max-width: calc(100vw - 20px);
  }

  /* Submenu positioning for mobile */
  .ctx-submenu {
    left: 0;
    top: 100%;
    width: 100%;
  }

  /* Thread items */
  .thread-item {
    padding: 10px 12px;
  }

  .thread-item .title {
    font-size: 13px;
  }

  /* Modal adjustments */
  acb-modal-shell dialog {
    width: 95vw;
    padding: 16px;
    margin: 10px auto;
  }

  /* Increase touch targets */
  button,
  .ctx-item,
  .stab,
  .thread-item {
    min-height: 44px;
  }

  /* Code blocks */
  .code-block pre {
    font-size: 12px;
  }

  .code-copy {
    min-height: 36px;
    min-width: 36px;
  }
}

/* Touch device optimizations */
@media (pointer: coarse) {
  .thread-item,
  .ctx-item,
  button {
    min-height: 44px;
  }

  .msg-avatar {
    width: 36px;
    height: 36px;
  }
}

/* ====================================================================================
   UI-02: Search bar
==================================================================================== */
#search-bar {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: 8px 16px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: relative;
}

#search-bar.visible {
  display: flex;
}

.search-bar-row {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 5px 10px;
  transition: border-color .15s ease;
}

.search-bar-row:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

.search-icon {
  color: var(--text-3);
  flex-shrink: 0;
}

#search-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-1);
  font-size: 13px;
  font-family: inherit;
  min-width: 0;
}

#search-input::placeholder {
  color: var(--text-3);
}

.search-counter {
  font-size: 11px;
  color: var(--text-2);
  white-space: nowrap;
  min-width: 48px;
  text-align: right;
}

.search-nav-btn,
.search-close-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-2);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3px;
  border-radius: 4px;
  transition: color .15s ease, background .15s ease;
  flex-shrink: 0;
}

.search-nav-btn:hover,
.search-close-btn:hover {
  color: var(--text-1);
  background: var(--bg-hover);
}

.search-close-btn {
  font-size: 16px;
  line-height: 1;
  padding: 2px 4px;
}

/* Pills row */
.search-pills-row {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.search-pills-label {
  font-size: 11px;
  color: var(--text-3);
  white-space: nowrap;
}

.search-pill {
  font-size: 11px;
  padding: 2px 10px;
  border-radius: 12px;
  border: 1px solid var(--border-light);
  background: var(--bg-input);
  color: var(--text-2);
  cursor: pointer;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
  white-space: nowrap;
}

.search-pill:hover {
  border-color: var(--accent);
  color: var(--text-1);
}

.search-pill.active {
  background: var(--accent-glow);
  border-color: var(--accent);
  color: var(--accent);
}

.search-pills-sep {
  flex: 1;
}

/* All-threads results dropdown */
.search-all-results {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 200;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
  max-height: 320px;
  overflow-y: auto;
  box-shadow: var(--shadow);
}

.search-all-results.visible {
  display: block;
}

.search-result-item {
  padding: 10px 14px;
  cursor: pointer;
  border-bottom: 1px solid var(--border);
  transition: background .1s ease;
}

.search-result-item:last-child {
  border-bottom: none;
}

.search-result-item:hover,
.search-result-item.search-result-active {
  background: var(--bg-hover);
}

.search-result-topic {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 2px;
}

.search-result-meta {
  font-size: 11px;
  color: var(--text-3);
  margin-bottom: 4px;
}

.search-result-snippet {
  font-size: 12px;
  color: var(--text-2);
  line-height: 1.4;
}

.search-result-snippet mark {
  background: var(--accent-glow);
  color: var(--accent);
  border-radius: 2px;
  padding: 0 1px;
}

.search-no-results {
  padding: 16px;
  text-align: center;
  color: var(--text-3);
  font-size: 13px;
}

/* Message highlight / dim (current-thread search) */
.msg-row.search-dim {
  opacity: .3;
  transition: opacity .2s ease;
}

.msg-row.search-highlight {
  opacity: 1;
  transition: opacity .2s ease;
}

.msg-row.search-match-active .bubble-v2 {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--radius);
}

mark.search-match {
  background: rgba(59, 130, 246, .25);
  color: var(--accent);
  border-radius: 2px;
  padding: 0 1px;
}

/* -----------------------------------------------------------------------
   UI-07: Message Navigation Sidebar (Emoji Minimap)
   Inside #chat-body (flex row), scrollable column to the right of messages.
   ----------------------------------------------------------------------- */

#nav-sidebar {
  width: 110px;
  flex-shrink: 0;
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  gap: 1px;
  padding: 6px 4px;
  border-left: 1px solid var(--border);
  background: var(--bg-panel);
  scrollbar-width: thin;
  scrollbar-color: var(--accent) transparent;
}

#nav-sidebar::-webkit-scrollbar      { width: 3px; }
#nav-sidebar::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 2px; }
#nav-sidebar::-webkit-scrollbar-track { background: transparent; }

#nav-sidebar.nav-sidebar-empty::after {
  content: "No messages";
  display: block;
  font-size: 10px;
  color: var(--text-3);
  text-align: center;
  padding: 12px 4px;
}

.nav-entry {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 3px 5px;
  border-radius: 5px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-family: inherit;
  text-align: left;
  width: 100%;
  min-width: 0;
  transition: background .12s ease;
  opacity: 0.7;
}

.nav-entry:hover {
  background: var(--bg-hover);
  opacity: 1;
}

.nav-entry.nav-entry-active {
  background: var(--bg-hover);
  opacity: 1;
  box-shadow: inset 2px 0 0 var(--accent);
}

.nav-entry-emoji {
  font-size: 14px;
  line-height: 1;
  flex-shrink: 0;
}

.nav-entry-meta {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
}

.nav-entry-name {
  font-size: 10px;
  font-weight: 500;
  color: var(--text-1);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 72px;
}

.nav-entry-time {
  font-size: 9px;
  color: var(--text-3);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 72px;
}

.msg-row.nav-highlight {
  animation: nav-highlight-flash .6s ease;
}

@keyframes nav-highlight-flash {
  0%   { box-shadow: 0 0 0 2px var(--accent); }
  100% { box-shadow: none; }
}

body.minimap-hidden #nav-sidebar {
  display: none;
}

@media (max-width: 1000px) {
  #nav-sidebar { display: none; }
}

/* ── Message Edit (UP-21) ─────────────────────────────────────────────────── */

.msg-edit-btn {
  opacity: 0;
  transition: opacity .15s ease;
}

.msg-row:hover .msg-edit-btn,
.msg-row:focus-within .msg-edit-btn {
  opacity: 1;
}

.msg-edit-btn:disabled {
  opacity: .3;
  cursor: not-allowed;
}

.msg-edited-indicator {
  font-size: .72rem;
  opacity: .55;
  cursor: pointer;
  text-decoration: dotted underline;
  margin-top: 2px;
  display: inline-block;
  color: var(--text-secondary, #888);
  transition: opacity .15s ease;
}

.msg-edited-indicator:hover {
  opacity: .9;
}

.msg-edit-textarea {
  width: 100%;
  min-height: 72px;
  padding: 6px 8px;
  font-size: .9rem;
  font-family: inherit;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  background: var(--bg2, #1e1e2e);
  color: var(--text, #e0e0e0);
  resize: vertical;
  box-sizing: border-box;
}

.msg-edit-actions {
  display: flex;
  gap: 6px;
  margin-top: 4px;
  justify-content: flex-end;
}

.msg-edit-save-btn,
.msg-edit-cancel-btn {
  font-size: .8rem;
  padding: 3px 10px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: opacity .15s ease;
}

.msg-edit-save-btn {
  background: var(--accent);
  color: #fff;
}

.msg-edit-save-btn:disabled {
  opacity: .6;
  cursor: not-allowed;
}

.msg-edit-cancel-btn {
  background: transparent;
  border: 1px solid var(--border, #444);
  color: var(--text, #e0e0e0);
}

.msg-edit-cancel-btn:hover {
  opacity: .8;
}

/* Edit history modal */
.msg-edit-history-modal {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 60vh;
  overflow-y: auto;
  padding: 4px 0;
}

.msg-edit-history-entry {
  border: 1px solid var(--border, #333);
  border-radius: var(--radius);
  padding: 8px 10px;
  font-size: .85rem;
}

.msg-edit-history-current {
  border-color: var(--accent);
}

.msg-edit-history-meta {
  display: flex;
  gap: 8px;
  margin-bottom: 4px;
  font-size: .75rem;
  opacity: .65;
}

.msg-edit-history-version {
  font-weight: 600;
  color: var(--accent);
  opacity: 1;
}

.msg-edit-history-content del {
  opacity: .55;
  text-decoration: line-through;
}

/* ====================================================================================
   Settings Modal Layout
==================================================================================== */
.settings-modal-container {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 14px;
  width: 760px;
  max-width: 90vw;
  height: 540px;
  max-height: 90vh;
  box-shadow: var(--shadow);
  animation: modal-in .2s ease;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.settings-modal-header {
  height: 56px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  background: var(--bg-panel);
}

.settings-modal-header h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-1);
}

.settings-close-btn {
  background: transparent;
  border: none;
  color: var(--text-2);
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .15s, color .15s;
}

.settings-close-btn:hover {
  background: var(--bg-hover);
  color: var(--text-1);
}

.settings-modal-body {
  flex: 1;
  display: flex;
  overflow: hidden;
}

.settings-sidebar {
  width: 200px;
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex-shrink: 0;
}

.settings-nav-item {
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-2);
  cursor: pointer;
  transition: background .15s, color .15s;
}

.settings-nav-item:hover {
  background: var(--bg-hover);
  color: var(--text-1);
}

.settings-nav-item.active {
  background: var(--accent-glow);
  color: var(--accent);
}

body[data-theme="light"] .settings-nav-item.active {
  background: rgba(37, 99, 235, .1);
}

.settings-content {
  flex: 1;
  background: var(--bg-base);
  padding: 24px 32px;
  overflow-y: auto;
}

.settings-tab-pane {
  display: none;
  animation: fade-in .2s ease;
}

.settings-tab-pane.active {
  display: block;
}

.settings-section-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-3);
  margin-bottom: 16px;
    letter-spacing: .1em;
    text-transform: uppercase;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 8px;
}

.settings-card {
  border-radius: 10px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 24px;
}

.settings-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.settings-field-description {
  font-size: 13px;
  color: var(--text-2);
  margin-top: 4px;
    line-height: 1.5;
}
.settings-field-row {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
}

.settings-field label {
  font-size: 13px;
  color: var(--text-1);
  font-weight: 500;
}

.settings-field input[type="text"],
.settings-field input[type="number"] {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  color: var(--text-1);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 14px;
  font-family: inherit;
  transition: border-color .15s;
}

.settings-field input:focus {
  outline: none;
  border-color: var(--accent);
}

.settings-field-note {
  font-size: 12px;
  color: var(--text-2);
  line-height: 1.4;
}

.settings-modal-footer {
  height: 64px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  border-top: 1px solid var(--border);
  background: var(--bg-panel);
  flex-shrink: 0;
}

/* Custom Toggle Switch */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 36px;
  height: 20px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--border-light);
  transition: .2s;
  border-radius: 20px;
}

.toggle-slider:before {
  position: absolute;
  content: "";
  height: 14px;
  width: 14px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .2s;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0, 0, 0, .3);
}

.toggle-switch input:checked+.toggle-slider {
  background-color: var(--accent);
}

.toggle-switch input:checked+.toggle-slider:before {
  transform: translateX(16px);
}