/* ---------- BOTTOM NAV ---------- */
  .bottom-nav{background:rgba(255,255,255,0.94); backdrop-filter:blur(12px); -webkit-backdrop-filter:blur(12px); border-top:1px solid var(--border); display:flex; align-items:center; padding:7px 10px calc(7px + env(safe-area-inset-bottom));}
  .nav-btn{flex:1; display:flex; flex-direction:column; align-items:center; gap:4px; padding:8px 0 6px; background:none; border:none; color:var(--ink-soft); border-radius:12px;}
  .nav-btn svg{width:20px; height:20px;}
  .nav-btn span{font-size:10.5px; font-weight:600;}
  .nav-btn.active{color:var(--ink);}
  .nav-btn.active svg{color:var(--accent);}