/* ── Top navigation bar ────────────────────────────────────────────────────── */

app-topbar {
  display: flex;
  align-items: center;
  height: var(--topbar-height);
  background: var(--sidebar-bg);
  border-bottom: 1px solid var(--sidebar-divider);
  padding: 0 1rem;
  flex-shrink: 0;
  user-select: none;
}

.topbar-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--sidebar-brand-color);
  letter-spacing: 0.02em;
}

.topbar-spacer {
  flex: 1;
}

.topbar-theme-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 5px;
  background: transparent;
  color: var(--sidebar-text);
  cursor: pointer;
  transition: color 0.15s, background 0.15s;
  padding: 0;
}

.topbar-theme-btn:hover {
  color: var(--sidebar-text-active);
  background: var(--sidebar-hover);
}

.topbar-theme-btn i {
  font-size: 0.85rem;
}

.topbar-copilot-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 5px;
  background: transparent;
  color: #6366f1;
  cursor: pointer;
  transition: color 0.15s, background 0.15s;
  padding: 0;
  margin-right: 0.25rem;
}

.topbar-copilot-btn:hover {
  background: var(--sidebar-hover);
}

.topbar-copilot-btn i {
  font-size: 0.9rem;
}

/* ── Profile avatar + dropdown ─────────────────────────────────────────────── */

.topbar-profile-wrapper {
  position: relative;
  margin-left: 0.5rem;
}

.topbar-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: none;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  padding: 0;
}

.topbar-avatar:hover {
  background: var(--accent-hover);
}

.topbar-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 200px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  box-shadow: var(--card-shadow);
  padding: 6px;
  z-index: 100;
}

.topbar-dropdown-header {
  padding: 8px 10px;
  border-bottom: 1px solid var(--card-border);
  margin-bottom: 4px;
}

.topbar-dropdown-name {
  font-size: 0.85rem;
  font-weight: 600;
}

.topbar-dropdown-sub {
  font-size: 0.75rem;
  color: var(--placeholder-color);
}

.topbar-dropdown-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  border: none;
  background: none;
  color: var(--bs-body-color);
  font-size: 0.82rem;
  padding: 8px 10px;
  border-radius: 5px;
  cursor: pointer;
  text-align: left;
}

.topbar-dropdown-item:hover {
  background: var(--bs-tertiary-bg);
}

.topbar-dropdown-item i {
  font-size: 0.9rem;
  opacity: 0.7;
}

.topbar-dropdown-logout {
  color: #dc3545;
}

.topbar-dropdown-logout:hover {
  background: rgba(220, 53, 69, 0.08);
}