.app-shell {
  min-height: 100dvh;
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  grid-template-rows: var(--header-height) 1fr;
}
.app-shell.is-collapsed {
  grid-template-columns: 0 minmax(0, 1fr);
}
.app-header {
  grid-column: 1 / -1;
  position: sticky;
  top: 0;
  height: var(--header-height);
  z-index: 70;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-inline: var(--space-8);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
.app-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  font-size: var(--font-size-small);
  text-decoration: none;
}
.app-header__brand img {
  width: 160px;
  height: 32px;
}
.app-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--font-size-caption);
  color: var(--color-muted);
}
.app-header__user {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
}
.app-sidebar {
  position: fixed;
  inset: var(--header-height) auto 0 0;
  width: var(--sidebar-width);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  z-index: 30;
  visibility: hidden;
  transform: translateX(-100%);
}
.app-sidebar.is-open {
  visibility: visible;
  transform: translateX(0);
}
.app-sidebar__footer {
  display: grid;
  gap: var(--space-3);
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  font-size: var(--font-size-caption);
}
.app-sidebar__footer .app-header__user {
  color: var(--color-text);
}
.app-sidebar__footer .btn {
  justify-content: flex-start;
}
.app-nav {
  overflow-y: auto;
  margin-bottom: var(--space-5);
}
.app-nav__heading {
  margin-bottom: var(--space-2);
  color: var(--color-muted);
  font-size: var(--font-size-caption);
  text-transform: uppercase;
}
.app-nav__list {
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-1);
}
.app-nav__link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  min-height: 44px;
  color: var(--color-muted);
  text-decoration: none;
  border-radius: var(--radius-control);
  font-size: var(--font-size-small);
}
.app-nav__link:hover {
  background: var(--color-background);
}
.app-nav__link.is-active {
  background: var(--color-info-soft);
  color: var(--color-primary);
  font-weight: 600;
}
.app-nav__link.is-disabled {
  opacity: .55;
  cursor: default;
}
.app-nav__icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}
.app-main {
  grid-column: 2;
  min-width: 0;
  padding: var(--space-8);
}
.app-main [id] {
  scroll-margin-top: calc(var(--header-height) + var(--space-4));
}
.page-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.page-header__title {
  font-size: var(--font-size-title);
  line-height: 1.3;
  font-weight: 700;
}
.page-header__description {
  color: var(--color-muted);
  font-size: var(--font-size-small);
  margin-top: var(--space-2);
}
.page-header__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.page-body {
  display: grid;
  gap: var(--space-6);
  min-width: 0;
}
.content-grid {
  display: grid;
  gap: var(--space-6);
  min-width: 0;
}
.content-grid--2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.content-grid--3, .stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}
.content-grid--sidebar {
  grid-template-columns: minmax(0, 2fr) minmax(240px, 1fr);
}
.simple-layout {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: var(--space-6);
}
.simple-layout__content {
  min-width: 0;
  width: 100%;
}

.page.is-modal-open, .page.is-nav-open {
  overflow: hidden;
}