body {
  min-height: 100vh;
}

.demo-shell {
  display: grid;
  grid-template-columns: 224px 1fr;
  min-height: 100vh;
}

.demo-sidebar {
  width: 224px;
  background: var(--card-background);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.demo-main {
  min-width: 0;
  background: var(--background);
  display: flex;
  flex-direction: column;
}

.demo-topbar {
  height: 64px;
  padding: 0 20px;
  border-bottom: 1px solid var(--border-color);
  background: var(--card-background);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.demo-topbar__meta {
  min-width: 0;
}

.demo-topbar__crumb {
  margin: 0 0 2px;
  color: var(--text-muted);
  font-size: 12px;
}

.demo-topbar__title {
  margin: 0;
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 600;
}

.demo-topbar__actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.demo-topbar__search {
  width: 240px;
  height: 36px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-control);
  background: var(--card-background);
  color: var(--text-secondary);
  padding: 0 12px;
}

.demo-topbar__chip,
.demo-topbar__icon {
  height: 36px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-control);
  background: var(--card-background);
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
}

.demo-topbar__chip {
  padding: 0 12px;
  font-weight: 500;
}

.demo-topbar__icon {
  min-width: 36px;
  justify-content: center;
}

.demo-tabbar {
  min-height: 48px;
  padding: 8px 16px 0;
  border-bottom: 1px solid var(--border-color);
  background: color-mix(in srgb, var(--card-background) 92%, var(--background));
  display: flex;
  align-items: flex-end;
  gap: 8px;
}

.demo-tabbar__item {
  display: inline-flex;
  align-items: center;
  min-height: 39px;
  padding: 0 14px;
  border: 1px solid var(--border-color);
  border-bottom-color: transparent;
  border-radius: 8px 8px 0 0;
  background: var(--card-background);
  color: var(--text-secondary);
  font-weight: 500;
}

.demo-tabbar__item.is-active {
  color: var(--text-primary);
  box-shadow: var(--shadow-soft);
}

.demo-main-surface {
  flex: 1;
  min-height: 0;
  overflow: auto;
  background: var(--background);
}

.demo-main-content {
  padding: 20px;
}

.demo-sidebar__brand {
  min-height: 64px;
  padding: 0 18px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
}

.demo-sidebar__home {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
}

.demo-sidebar__brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--primary);
  color: var(--primary-foreground);
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: inset 0 0 0 1px rgb(255 255 255 / 0.15);
}

.demo-sidebar__home strong,
.demo-sidebar__home small {
  display: block;
}

.demo-sidebar__home strong {
  color: var(--text-primary);
  font-size: 15px;
  line-height: 1.2;
}

.demo-sidebar__home small {
  margin-top: 3px;
  color: var(--text-muted);
  font-size: 12px;
}

.demo-sidebar__body {
  flex: 1;
  overflow: auto;
  padding: 12px 10px;
}

.demo-workspace-switch {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
  padding: 12px;
  border-bottom: 1px solid var(--border-color);
}

.demo-workspace-btn {
  min-height: 34px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-control);
  background: var(--card-background);
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 500;
}

.demo-workspace-btn:hover {
  background: var(--surface-secondary);
}

.demo-workspace-btn.is-active {
  border-color: color-mix(in srgb, var(--primary) 55%, var(--border-color));
  background: var(--surface-active);
  color: var(--primary-hover);
}

.demo-sidebar__footer {
  padding: 12px;
  border-top: 1px solid var(--border-color);
  display: grid;
  gap: 10px;
}

.demo-sidebar__meta {
  color: var(--text-muted);
  font-size: 12px;
}

.demo-nav-group + .demo-nav-group {
  margin-top: 4px;
}

.demo-nav-item,
.demo-nav-group__trigger {
  width: 100%;
  min-height: 40px;
  padding: 0 10px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--text-secondary);
  display: grid;
  grid-template-columns: 18px 1fr auto;
  align-items: center;
  gap: 10px;
  text-align: left;
  transition: background-color 0.16s ease, color 0.16s ease;
}

.demo-nav-item:hover,
.demo-nav-group__trigger:hover {
  background: var(--surface-secondary);
}

.demo-nav-item.is-active {
  background: var(--primary);
  color: var(--primary-foreground);
  box-shadow: var(--shadow-soft);
}

.demo-nav-item__icon,
.demo-nav-group__icon {
  width: 18px;
  height: 18px;
  border-radius: 6px;
  background: var(--surface-secondary);
  color: var(--text-tertiary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
}

.demo-nav-item.is-active .demo-nav-item__icon,
.demo-nav-group.is-open .demo-nav-group__icon {
  background: color-mix(in srgb, var(--primary) 16%, white);
  color: var(--primary-hover);
}

.demo-nav-item__text,
.demo-nav-group__text {
  font-size: 14px;
  font-weight: 500;
}

.demo-nav-group__chevron {
  color: var(--text-faint);
  font-size: 18px;
  line-height: 1;
  transition: transform 0.16s ease;
}

.demo-nav-group.is-open .demo-nav-group__chevron {
  transform: rotate(90deg);
}

.demo-nav-group.is-open .demo-nav-group__trigger {
  background: var(--surface-secondary);
  color: var(--text-primary);
}

.demo-nav-children {
  display: none;
  margin: 2px 0 6px 19px;
  padding: 4px 0 4px 12px;
  border-left: 1px solid var(--border-color);
}

.demo-nav-group.is-open .demo-nav-children {
  display: grid;
  gap: 4px;
}

.demo-nav-child {
  min-height: 32px;
  padding: 0 10px;
  border-radius: var(--radius-control);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: background-color 0.16s ease, color 0.16s ease;
}

.demo-nav-child:hover {
  background: var(--surface-secondary);
}

.demo-nav-child.is-active {
  background: var(--primary);
  color: var(--primary-foreground);
  box-shadow: var(--shadow-soft);
}

.demo-nav-link__dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--primary) 84%, white);
  box-shadow: 0 0 0 3px rgb(26 124 255 / 0.11);
  flex: 0 0 auto;
  margin-left: auto;
}

.demo-nav-item.is-active .demo-nav-link__dot,
.demo-nav-child.is-active .demo-nav-link__dot {
  background: rgb(255 255 255 / 0.95);
  box-shadow: 0 0 0 3px rgb(255 255 255 / 0.18);
}

@media (max-width: 960px) {
  .demo-shell {
    grid-template-columns: 1fr;
  }

  .demo-sidebar {
    width: auto;
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--border-color);
  }

  .demo-topbar {
    height: auto;
    padding: 12px 16px;
    flex-direction: column;
    align-items: stretch;
  }

  .demo-topbar__actions {
    flex-wrap: wrap;
  }

  .demo-topbar__search {
    width: 100%;
  }

  .demo-main-content {
    padding: 16px;
  }
}