.nav {
  position: fixed;
  left: 50%;
  bottom: 16px;
  transform: translateX(-50%);
  z-index: 20;
  display: inline-flex;
  gap: 4px;
  padding: 6px;
  background: rgba(253, 248, 238, 0.85);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: var(--shadow-md);
}

.nav-item {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 10px 16px;
  min-width: 72px;
  border: none;
  background: transparent;
  font: inherit;
  color: var(--ink-soft);
  cursor: pointer;
  border-radius: 999px;
  transition: all 0.2s var(--ease);
}

.nav-item:hover {
  color: var(--ink);
}

.nav-item.is-active {
  color: var(--accent);
  background: var(--accent-soft);
}

.nav-item.primary {
  background: var(--accent);
  color: var(--on-accent);
  padding: 12px 18px;
}

.nav-item.primary.is-active,
.nav-item.primary:hover {
  background: var(--accent);
  color: var(--on-accent);
  box-shadow: 0 8px 20px -8px rgba(122, 62, 29, 0.6);
  transform: translateY(-1px);
}

.nav-icon {
  width: 22px;
  height: 22px;
  display: inline-flex;
}

.nav-icon svg {
  width: 100%;
  height: 100%;
}

.nav-label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.02em;
}