.app-shell {
  width: min(100%, var(--max-width));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: var(--gap-lg);
}

.sidebar {
  padding: 22px;
  display: grid;
  align-content: start;
  gap: var(--gap-md);
  position: sticky;
  top: 18px;
  max-height: calc(100vh - 36px);
  overflow: auto;
}

.main-area {
  display: grid;
  gap: var(--gap-lg);
}

.topbar {
  padding: 22px;
  display: grid;
  gap: 18px;
}

.topbar-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap-md);
}

.topbar-actions,
.stack-row,
.hero-actions {
  display: flex;
  gap: var(--gap-sm);
  flex-wrap: wrap;
}

.search-grid {
  display: grid;
  grid-template-columns: 1.8fr 0.9fr 0.9fr;
  gap: var(--gap-md);
  align-items: end;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--gap-lg);
}

.widget-card,
.hero-card,
.setting-card,
.sidebar-card {
  padding: 20px;
}

.hero-card {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--gap-lg);
  align-items: stretch;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap-sm);
}

.view-section {
  display: grid;
  gap: var(--gap-md);
}

.section-head,
.widget-head,
.sidebar-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap-sm);
}

.groups-stack {
  display: grid;
  gap: var(--gap-md);
}

.site-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--gap-md);
}

.settings-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap-lg);
}

.insight-layout {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--gap-lg);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap-md);
}

.modal-shell {
  min-width: min(760px, calc(100vw - 32px));
  display: grid;
  gap: var(--gap-md);
}

.modal-head,
.modal-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap-md);
}

.modal-body {
  display: grid;
  gap: var(--gap-md);
}

.theme-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap-md);
}

@media (max-width: 1200px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    max-height: none;
  }

  .dashboard-grid,
  .settings-layout,
  .insight-layout,
  .hero-card,
  .search-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  body {
    padding: 10px;
  }

  .sidebar,
  .topbar,
  .widget-card,
  .hero-card,
  .setting-card,
  .sidebar-card {
    padding: 16px;
  }

  .form-grid,
  .theme-grid,
  .site-grid {
    grid-template-columns: 1fr;
  }

  .topbar-main,
  .widget-head,
  .section-head,
  .sidebar-card-head,
  .modal-head,
  .modal-foot {
    flex-direction: column;
    align-items: stretch;
  }
}