/* SITE-SIDEBAR-NAV-CLEANUP-01 — Desktop navigation hierarchy without changing feature readiness. */
.sidebar-brand {
  min-height: 48px;
  margin: 0 10px 18px;
  display: flex;
  align-items: center;
  gap: 8px;
  overflow: hidden;
}

/* Keep the approved mascot pixels exactly; hide only the raster wordmark. */
.sidebar-brand-mascot-crop {
  width: 49px;
  height: 48px;
  overflow: hidden;
  flex: 0 0 49px;
}

.sidebar-brand-logo {
  display: block;
  width: auto;
  max-width: none;
  height: 48px;
  min-width: 0;
  object-fit: contain;
  object-position: left center;
  flex: 0 0 auto;
  border: 0;
  box-shadow: none;
  filter: none;
}

/* Home Desktop wordmark follows the Admin visual: bold, tight, real text. */
.sidebar-brand-wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0;
  flex: 0 0 auto;
  white-space: nowrap;
  font-family: "Arial Black", "Segoe UI Black", "Malgun Gothic", "Segoe UI", sans-serif;
  font-size: 30px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -1.6px;
  font-kerning: normal;
  font-synthesis: weight;
  text-rendering: geometricPrecision;
}

.sidebar-brand-wordmark > span + span {
  margin-left: -1.2px;
}

.sidebar-brand-wordmark-navy {
  color: var(--brand-navy, #182a46);
  -webkit-text-stroke: .3px currentColor;
}

.sidebar-brand-wordmark-o {
  color: var(--brand-violet, #7b62bb);
  -webkit-text-stroke: .3px currentColor;
}

.mobile-header-brand {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
}

.mobile-header-logo {
  display: block;
  width: auto;
  height: 34px;
  object-fit: contain;
  border: 0;
  box-shadow: none;
  filter: none;
}

.mobile-drawer-brand {
  display: flex;
  align-items: center;
  min-width: 0;
}

.mobile-drawer-brand-logo {
  display: block;
  width: auto;
  height: 38px;
  object-fit: contain;
  border: 0;
  box-shadow: none;
  filter: none;
}

/* SITE-SIDEBAR-INFORMATION-ARCHITECTURE-04 — fixed primary actions +
   independently scrolling recent conversations + fixed account identity. */
.sidebar-primary-nav {
  display: grid;
  gap: 4px;
  flex: 0 0 auto;
}

.sidebar-primary-nav .nav-item:disabled {
  opacity: .58;
}

.sidebar-primary-nav .nav-link:focus-visible,
.sidebar-account-entry:focus-visible {
  outline: 2px solid var(--brand-violet, #7b62bb);
  outline-offset: 2px;
}

.sidebar-history-section {
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
}

.sidebar-history-scroll {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}

.nav-history-list li {
  justify-content: flex-start;
}

.nav-history-list a,
.nav-history-list button {
  inline-size: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  min-width: 0;
  color: inherit;
  font: inherit;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
}

.nav-history-list button[aria-current="true"] {
  color: var(--brand-navy);
  font-weight: 800;
}

.nav-history-list [data-conversation-title] {
  display: -webkit-box;
  min-width: 0;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  text-overflow: ellipsis;
}

.sidebar-account-footer {
  flex: 0 0 auto;
  margin-top: auto;
  padding: 12px 4px 0;
  border-top: 1px solid #e2e6ee;
  background: #f7f8fb;
}

.sidebar-account-slot {
  min-height: 54px;
  display: grid;
  align-items: center;
}

.sidebar-account-entry {
  min-width: 0;
  min-height: 54px;
  padding: 8px 10px;
  display: grid;
  align-content: center;
  gap: 2px;
  border-radius: 12px;
  color: var(--brand-navy);
  text-decoration: none;
  border: 0;
  background: transparent;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.sidebar-account-entry:hover {
  background: #eceff5;
}

.sidebar-profile-trigger {
  inline-size: 100%;
  grid-template-columns: 36px minmax(0, 1fr);
  align-items: center;
  align-content: normal;
  gap: 9px;
}

.sidebar-profile-avatar {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  object-fit: cover;
  background: #e5eaf3;
  color: var(--brand-navy);
  font-size: 12px;
  font-weight: 850;
}

.sidebar-profile-copy { min-width: 0; display: grid; gap: 1px; }

.sidebar-account-name,
.sidebar-account-handle {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sidebar-account-name {
  font-size: 14px;
  font-weight: 800;
  line-height: 1.35;
}

.sidebar-account-handle {
  color: #737b88;
  font-size: 12px;
  font-weight: 650;
  line-height: 1.35;
}

.sidebar-account-placeholder {
  display: block;
  width: 74%;
  height: 32px;
  margin-inline: 10px;
  border-radius: 10px;
  background: linear-gradient(90deg, #e9edf4 20%, #f4f6fa 50%, #e9edf4 80%);
  background-size: 200% 100%;
  animation: sidebar-account-pulse 1.2s ease-in-out infinite;
}

@keyframes sidebar-account-pulse {
  0% { background-position: 100% 0; }
  100% { background-position: -100% 0; }
}

@media (min-width: 901px) {
  .chat-sidebar-desktop {
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }

  .sidebar-nav-desktop {
    flex: 1 1 auto;
    min-height: 0;
    gap: 14px;
  }

  /* Desktop account access lives in the fixed sidebar; mobile keeps the top affordance. */
  .topbar-left,
  .account-actions {
    display: none;
  }
}

@media (max-width: 900px) {
  .mobile-nav-drawer {
    overflow: hidden;
  }

  .mobile-nav-drawer .sidebar-nav {
    flex: 1 1 auto;
    min-height: 0;
    height: auto;
    gap: 14px;
    overflow: hidden;
  }
}

@media (prefers-reduced-motion: reduce) {
  .sidebar-account-placeholder {
    animation: none;
  }
}