.platform-mobile-nav { --platform-line: var(--line); --platform-background: #211e17f5; --platform-soft: var(--ink-soft); --platform-accent: var(--accent); --platform-active: #ffe58a0d; --platform-active-line: #ffe58a80; }
.platform-mobile-nav { display: none; }
@media (max-width: 800px) {
  body { padding-bottom: calc(74px + env(safe-area-inset-bottom)); }
  .platform-mobile-nav {
    position: fixed;
    inset: auto 0 0;
    z-index: 34;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    min-height: calc(64px + env(safe-area-inset-bottom));
    padding: 5px max(12px, env(safe-area-inset-left)) calc(5px + env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-right));
    border-top: 1px solid var(--platform-line);
    background: var(--platform-background);
    box-shadow: 0 -14px 38px #0007;
  }
  .platform-mobile-nav a {
    display: grid;
    align-content: center;
    justify-items: center;
    min-width: 0;
    min-height: 54px;
    gap: 3px;
    padding: 0;
    border: 0;
    border-radius: 12px;
    background: transparent;
    color: var(--platform-soft);
    font-family: inherit;
    font-size: .75rem;
    font-weight: 600;
    line-height: 1.4;
    text-decoration: none;
    white-space: nowrap;
  }
  .platform-mobile-nav a[aria-current="page"] {
    color: var(--platform-accent);
    background: var(--platform-active);
    box-shadow: inset 0 2px 0 var(--platform-active-line);
  }
  .platform-mobile-nav a:focus-visible { outline: 2px solid var(--platform-accent); outline-offset: -2px; }
  .platform-mobile-nav svg { width: 20px; height: 20px; }
}