/* Persistent thumb navigation; paired with mobile-nav.js. */
@media (max-width: 767px) {
  body { padding-bottom: calc(78px + env(safe-area-inset-bottom, 0px)) !important; }
  .lf-mobile-nav {
    position: fixed;
    z-index: 45;
    inset: auto 0 0;
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 2px;
    padding: 7px 8px calc(7px + env(safe-area-inset-bottom, 0px));
    border-top: 1px solid #dbeafe;
    background: rgba(255,255,255,.97);
    box-shadow: 0 -8px 28px rgba(15,45,80,.09);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
  }
  .lf-mobile-nav a {
    display: flex;
    min-width: 0;
    min-height: 48px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    border-radius: 12px;
    color: #73849a;
    text-decoration: none;
    font: 600 10px/1.2 system-ui, sans-serif;
    -webkit-tap-highlight-color: transparent;
  }
  .lf-mobile-nav a i { font-size: 17px; }
  .lf-mobile-nav a[aria-current="page"] { color: #0284c7; background: #eff9ff; }
  .lf-mobile-nav a:active { transform: scale(.96); }
}
@media (min-width: 768px) { .lf-mobile-nav { display: none !important; } }
@media (max-width: 380px) {
  .lf-mobile-nav { padding-inline: 4px; }
  .lf-mobile-nav a { font-size: 9px; }
}