.app-shell {
  width: min(100%, 90rem);
  min-height: 100dvh;
  margin-inline: auto;
  background: var(--ns-color-surface);
}

.sidebar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--ns-space-4);
  padding: var(--ns-space-3) var(--ns-space-4);
  border-block-end: 1px solid var(--ns-color-border);
  background: var(--ns-color-surface-alt);
}

.mobile-nav-toggle {
  min-height: 2.75rem;
  padding: var(--ns-space-2) var(--ns-space-3);
  border: 1px solid var(--ns-color-primary);
  border-radius: 0.625rem;
  background: var(--ns-color-surface);
  color: var(--ns-color-primary);
  font-weight: 800;
  cursor: pointer;
}

.sidebar-brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: var(--ns-space-2);
  color: var(--ns-color-text);
  font-size: 1.25rem;
  font-weight: 800;
  text-decoration: none;
}

.sidebar-brand__mark {
  width: 2.75rem;
  height: 2.75rem;
  object-fit: contain;
}

.workspace {
  min-width: 0;
}

.app-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--ns-space-3);
  padding: var(--ns-space-4);
  border-block-end: 1px solid var(--ns-color-border);
}

.eyebrow {
  color: var(--ns-color-primary);
  font-size: 0.875rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.phase-label {
  color: var(--ns-color-text-muted);
  font-size: 0.875rem;
}

.header-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: var(--ns-space-3);
}

.locale-control {
  display: grid;
  gap: var(--ns-space-1);
  color: var(--ns-color-text-muted);
  font-size: 0.875rem;
  font-weight: 700;
}

.locale-control select {
  min-height: 2.75rem;
  padding-inline: var(--ns-space-3);
  border: 1px solid var(--ns-color-border);
  border-radius: 0.625rem;
  background: var(--ns-color-surface);
  color: var(--ns-color-text);
}

.primary-nav {
  display: none;
  grid-column: 1 / -1;
  grid-template-columns: 1fr;
  flex: 1 1 auto;
  min-width: 0;
  gap: var(--ns-space-2);
  overflow: visible;
}

.primary-nav[data-open="true"] {
  display: grid;
  animation: ns-sidebar-open var(--ns-motion-base) var(--ns-ease-enter) both;
}

.primary-nav a {
  min-height: 2.75rem;
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  padding-inline: var(--ns-space-3);
  border-radius: 0.5rem;
}

.primary-nav a[aria-current="page"] {
  background: var(--ns-color-primary);
  color: var(--ns-color-on-primary);
  text-decoration: none;
}

.mobile-bottom-nav { position: fixed; z-index: 20; inset-inline: 0; inset-block-end: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 0.25rem; padding: 0.5rem; border-block-start: 1px solid var(--ns-color-border); background: var(--ns-color-surface-alt); box-shadow: var(--ns-shadow-raised); }
.mobile-bottom-nav a, .mobile-bottom-nav button { display: grid; place-items: center; min-height: 3rem; padding: 0.25rem; border: 0; border-radius: var(--ns-radius); background: transparent; color: var(--ns-color-text); font: inherit; font-size: 0.75rem; font-weight: 700; text-align: center; text-decoration: none; }
.mobile-bottom-nav button { cursor: pointer; }
.mobile-action-sheet { display: grid; gap: var(--ns-space-3); }

main {
  min-width: 0;
  width: min(calc(100% - 2rem), var(--ns-content-max));
  margin-inline: auto;
  padding-block: var(--ns-space-8) calc(var(--ns-space-12) + 4.5rem);
}

.route-panel {
  display: grid;
  gap: var(--ns-space-4);
  padding: clamp(1rem, 4vw, 2rem);
  background: var(--ns-color-surface);
  border: 1px solid var(--ns-color-border);
  border-radius: var(--ns-radius);
  box-shadow: var(--ns-shadow-raised);
}

.route-stack {
  display: grid;
  gap: var(--ns-space-6);
}

.settings-layout {
  display: grid;
  gap: var(--ns-space-6);
  align-items: start;
}

.settings-panel {
  min-width: 0;
  padding: clamp(1rem, 4vw, 2rem);
  background: var(--ns-color-surface);
  border: 1px solid var(--ns-color-border);
  border-radius: var(--ns-radius);
  box-shadow: var(--ns-shadow-raised);
}

.ns-route-enter {
  animation: ns-route-enter var(--ns-motion-base) var(--ns-ease-enter) both;
}

@keyframes ns-route-enter {
  from { transform: translateY(0.25rem); }
  to { transform: none; }
}

@keyframes ns-sidebar-open {
  from { transform: translateY(-0.25rem); }
  to { transform: none; }
}

.route-meta {
  color: var(--ns-color-text-muted);
}

.pwa-status-layer {
  position: fixed;
  z-index: 90;
  inset-inline: 1rem;
  inset-block-end: 1rem;
  display: grid;
  justify-items: center;
  gap: var(--ns-space-2);
  pointer-events: none;
}

.offline-indicator,
.pwa-update {
  width: min(100%, 42rem);
  margin: 0;
  padding: var(--ns-space-3) var(--ns-space-4);
  border: 2px solid var(--ns-color-border);
  border-radius: var(--ns-radius);
  background: var(--ns-color-surface);
  color: var(--ns-color-text);
  box-shadow: var(--ns-shadow-raised);
  pointer-events: auto;
}

.pwa-update {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--ns-space-3);
}

.pwa-update[hidden],
.offline-indicator[hidden] {
  display: none;
}