/* ── Chat layout ─────────────────────────────────── */
.ws-main--chat {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.chat-header {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0 1.25rem;
  height: 52px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-primary);
}
.chat-header-hash {
  font-size: 1.1rem;
  color: var(--text-faint);
  line-height: 1;
}
.chat-header-name {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}
.chat-header-sep {
  color: var(--text-ghost);
  font-size: 0.9rem;
}
.chat-header-desc {
  font-size: 0.82rem;
  color: var(--text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Messages list ───────────────────────────────── */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem 0;
  display: flex;
  flex-direction: column;
}

.chat-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2rem 1.5rem 1rem;
}
.chat-empty-title {
  margin: 0 0 0.25rem;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary);
}
.chat-empty-sub {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-faint);
}

.chat-message {
  display: flex;
  gap: 0.75rem;
  padding: 0.35rem 1.25rem;
  transition: background 80ms;
}
.chat-message:hover {
  background: var(--bg-hover);
}
.chat-message-avatar {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
  color: #fff;
  margin-top: 0.1rem;
}
.chat-message-avatar--image {
  background: none;
}
.chat-message-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
}
.chat-message-body {
  flex: 1;
  min-width: 0;
}
.chat-message-meta {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.15rem;
}
.chat-message-author {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
}
.chat-message-time {
  font-size: 0.72rem;
  color: var(--text-faint);
}
.chat-message-agent-badge {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-light);
  background: var(--accent-bg);
  border: 1px solid var(--accent-border);
  border-radius: 5px;
  padding: 0.15rem 0.45rem;
}
.chat-message-content {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
}

/* ── Message edit ───────────────────────────────── */
.chat-message-edit-btn {
  display: none;
  align-items: center;
  justify-content: center;
  padding: 0.2rem;
  margin-left: 0.25rem;
  background: none;
  border: none;
  border-radius: 4px;
  color: var(--text-faint);
  cursor: pointer;
  vertical-align: middle;
  transition: color 120ms, background 120ms;
}
.chat-message-edit-btn:hover {
  color: var(--text-muted);
  background: var(--bg-hover);
}
.chat-message:hover .chat-message-edit-btn {
  display: inline-flex;
}

form:has(.chat-message-delete-btn) {
  display: contents;
}
.chat-message-delete-btn {
  display: none;
  align-items: center;
  justify-content: center;
  padding: 0.2rem;
  margin-left: 0.15rem;
  background: none;
  border: none;
  border-radius: 4px;
  color: var(--text-faint);
  cursor: pointer;
  vertical-align: middle;
  transition: color 120ms, background 120ms;
}
.chat-message-delete-btn:hover {
  color: #f87171;
  background: rgba(248,113,113,0.1);
}
.chat-message:hover .chat-message-delete-btn {
  display: inline-flex;
}

.chat-message-edited-badge {
  font-size: 0.68rem;
  color: var(--text-faint);
  font-style: italic;
}

.chat-edit-form {
  margin-top: 0.4rem;
}
.chat-edit-input {
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-size: 0.9rem;
  font-family: inherit;
  color: var(--text-primary);
  background: var(--bg-composer);
  border: 1px solid var(--accent-border);
  border-radius: 8px;
  outline: none;
  resize: none;
  line-height: 1.5;
  box-shadow: 0 0 0 3px var(--accent-bg);
  box-sizing: border-box;
}
.chat-edit-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.35rem;
}
.chat-edit-cancel {
  padding: 0.25rem 0.75rem;
  font-size: 0.8rem;
  font-family: inherit;
  color: var(--text-muted);
  background: var(--bg-hover);
  border: 1px solid var(--border-input);
  border-radius: 6px;
  cursor: pointer;
  transition: background 120ms, color 120ms;
}
.chat-edit-cancel:hover {
  background: var(--bg-active);
  color: var(--text-primary);
}
.chat-edit-save {
  padding: 0.25rem 0.75rem;
  font-size: 0.8rem;
  font-family: inherit;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background 120ms;
}
.chat-edit-save:hover { background: var(--accent-dark); }

/* ── Composer ────────────────────────────────────── */
.chat-composer {
  flex-shrink: 0;
  padding: 0.75rem 1.25rem 1rem;
}
.chat-form {
  display: flex;
  background: var(--bg-composer);
  border: 1px solid var(--border-input);
  border-radius: 10px;
  transition: border-color 140ms, box-shadow 140ms;
}
.chat-form:focus-within {
  border-color: var(--accent-border);
  box-shadow: 0 0 0 3px var(--accent-bg);
}
.chat-input {
  flex: 1;
  padding: 0.75rem 1rem;
  font-size: 0.925rem;
  font-family: inherit;
  color: var(--text-primary);
  background: transparent;
  border: none;
  outline: none;
  resize: none;
  line-height: 1.5;
  max-height: 200px;
  overflow-y: auto;
}
.chat-input::placeholder { color: var(--text-ghost); }

/* ── Reply button ────────────────────────────────── */
form:has(.chat-message-reply-btn) {
  display: contents;
}
.chat-message-reply-btn {
  display: none;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.45rem;
  margin-left: 0.15rem;
  background: none;
  border: none;
  border-radius: 4px;
  color: var(--text-faint);
  cursor: pointer;
  font-size: 0.75rem;
  font-family: inherit;
  vertical-align: middle;
  transition: color 120ms, background 120ms;
}
.chat-message-reply-btn:hover {
  color: var(--text-muted);
  background: var(--bg-hover);
}
.chat-message:hover .chat-message-reply-btn {
  display: inline-flex;
}

/* ── Reply count link ─────────────────────────────── */
.chat-message-replies {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: 0.35rem;
  padding: 0.2rem 0.45rem;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-bg);
  border: 1px solid var(--accent-border);
  border-radius: 6px;
  transition: background 120ms, border-color 120ms;
}
.chat-message-replies:hover {
  background: var(--bg-active);
  border-color: var(--accent-border);
}

/* ── Thread context banner ───────────────────────── */
.chat-thread-context {
  flex-shrink: 0;
  padding: 0.6rem 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--accent-bg);
}
.chat-thread-context-label {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-faint);
  margin-bottom: 0.25rem;
}
.chat-thread-context-content {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.4;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 3.5rem;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

/* ── Thread header elements ──────────────────────── */
.chat-header-thread-icon {
  color: var(--accent);
  flex-shrink: 0;
}
.chat-header-parent-link {
  font-size: 0.875rem;
  color: var(--accent);
  font-weight: 500;
  transition: color 120ms;
}
.chat-header-parent-link:hover { color: var(--accent-light); }

/* ── Chat header back button (mobile only, hidden on desktop) ── */
.chat-header-back {
  display: none;
  align-items: center;
  color: var(--text-faint);
  font-size: 1.2rem;
  padding: 0.2rem 0.35rem;
  margin-right: 0.1rem;
  border-radius: 6px;
  transition: color 120ms, background 120ms;
  flex-shrink: 0;
}
.chat-header-back:hover { color: var(--text-muted); background: var(--bg-hover); }

/* ── Chat header actions ─────────────────────────── */
.chat-header-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.chat-header-settings {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 7px;
  color: var(--text-faint);
  transition: color 120ms, background 120ms;
}
.chat-header-settings:hover {
  color: var(--text-muted);
  background: var(--bg-hover);
}

/* ── Responsive ─────────────────────────────────── */
@media (max-width: 640px) {
  .chat-header-back { display: flex; }
  .chat-header { padding: 0 1rem; gap: 0.35rem; }
  .chat-header-desc { display: none; }
  .chat-header-sep { display: none; }
  .chat-composer { padding: 0.5rem 0.75rem 0.75rem; }
}