:root {
  --app-control-radius: 14px;
}

.app-navigation {
  position: fixed;
  z-index: 90;
  top: max(12px, env(safe-area-inset-top));
  left: max(12px, env(safe-area-inset-left));
  right: max(12px, env(safe-area-inset-right));
  display: flex;
  align-items: center;
  justify-content: space-between;
  pointer-events: none;
}

.app-navigation__control {
  width: 44px;
  min-width: 44px;
  height: 44px;
  min-height: 44px;
  display: inline-grid;
  place-items: center;
  padding: 0;
  border: 1px solid rgba(47, 43, 39, .34);
  border-radius: var(--app-control-radius);
  background: rgba(247, 241, 226, .94);
  box-shadow: 0 8px 26px rgba(72, 58, 39, .18);
  color: var(--moss-deep, #2f5349);
  text-decoration: none;
  cursor: pointer;
  pointer-events: auto;
  backdrop-filter: blur(8px);
  transition: transform .18s ease, background .18s ease;
}

.app-navigation__control:hover { background: var(--moss-pale, #d7e2d8); transform: translateY(-2px); }
.app-navigation__control:active { transform: translateY(1px) scale(.98); }
.app-navigation__icon { width: 24px; height: 24px; stroke-width: 2.75; }
.app-navigation__actions { display: flex; align-items: center; gap: 8px; pointer-events: none; }
.app-navigation__actions > * { pointer-events: auto; }
.app-navigation__control--style {
  width: auto;
  padding: 0 14px;
  grid-template-columns: auto auto;
  gap: 7px;
  font: 800 14px/1 system-ui, sans-serif;
  letter-spacing: .02em;
}
.app-navigation__label { white-space: nowrap; }

@media (max-width: 560px) {
  .app-navigation__control { width: 42px; min-width: 42px; height: 42px; min-height: 42px; }
  .app-navigation__control--style { width: auto; padding-inline: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  .app-navigation__control { transition-duration: .001ms; }
}