body { background: var(--app-bg); color: var(--text); }
.app { display: flex; min-height: 100vh; }
.sidebar {
  width: 280px;
  min-height: 100vh;
  background: linear-gradient(180deg, var(--panel) 0%, var(--panel-2) 100%);
  border-right: 1px solid var(--border);
  padding: 18px;
  display: none;
  position: fixed;
  left: 0;
  top: 0;
  z-index: 1030;
}
@media (min-width: 992px) {
  .sidebar { display: flex; flex-direction: column; }
  .content { margin-left: 280px; width: calc(100% - 280px); }
}
.brand { display: flex; align-items: center; gap: 10px; padding: 10px 10px 14px; }
.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: color-mix(in srgb, var(--app-bg) 85%, var(--panel));
  border: 1px solid color-mix(in srgb, var(--text) 16%, transparent);
  color: var(--text);
}
.nav-section-title {
  font-size: .75rem;
  color: var(--muted-2);
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: 14px 10px 8px;
}
.nav-link {
  color: color-mix(in srgb, var(--text) 78%, transparent);
  border-radius: 12px;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-link:hover { background: color-mix(in srgb, var(--text) 6%, transparent); color: var(--text); }
.nav-link.active {
  background: color-mix(in srgb, var(--bs-primary) 16%, transparent);
  border: 1px solid color-mix(in srgb, var(--bs-primary) 22%, transparent);
  color: var(--text);
}
.sidebar-scroll {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: 6px;
  margin-right: -6px;
}
.topbar {
  position: sticky;
  top: 0;
  z-index: 1020;
  background: color-mix(in srgb, var(--app-bg) 85%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.topbar-inner { padding: 14px 16px; }
@media (min-width: 992px) { .topbar-inner { padding: 14px 24px; } }
.glass {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
}
.theme-icon-btn {
  border: 0 !important;
  background: transparent !important;
  color: color-mix(in srgb, var(--text, #334155) 90%, transparent) !important;
  padding: .2rem .35rem;
  line-height: 1;
}
.theme-icon-btn i { font-size: 1.25rem; }