.bnav{--bnav-bg:#0f2544;--bnav-border:rgba(255, 255, 255, 0.12);--bnav-ink:rgba(255, 255, 255, 0.55);--bnav-ink-active:#ffffff;--bnav-accent:#1d4ed8;--bnav-height:56px;display:none;position:fixed;left:0;right:0;bottom:0;z-index:500;background:var(--bnav-bg);border-top:1px solid var(--bnav-border);padding-bottom:env(safe-area-inset-bottom,0);padding-left:env(safe-area-inset-left,0);padding-right:env(safe-area-inset-right,0);box-shadow:0 -2px 12px rgba(0,0,0,.18)}.bnav-tabs{display:flex;align-items:stretch;width:100%;height:var(--bnav-height);list-style:none;margin:0;padding:0;gap:8px}.bnav-tab{flex:1 1 20%;max-width:20%;min-width:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;height:var(--bnav-height);min-height:48px;background:0 0;border:none;border-bottom:4px solid transparent;border-radius:0;color:var(--bnav-ink);font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;cursor:pointer;-webkit-tap-highlight-color:transparent;user-select:none;padding:0 4px;transition:color .18s ease,border-color .18s ease,background-color .12s ease}.bnav-tab .bnav-icon{font-size:20px;line-height:1;transition:transform .18s ease}.bnav-tab .bnav-label{font-size:10.5px;font-weight:600;letter-spacing:.2px;line-height:1.1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}.bnav-tab:active{background:rgba(255,255,255,.06)}.bnav-tab.active{color:var(--bnav-ink-active);border-bottom-color:var(--bnav-accent)}.bnav-tab.active .bnav-icon{transform:translateY(-1px) scale(1.05)}.bnav-tab:focus{outline:0}.bnav-tab:focus-visible{outline:2px solid var(--bnav-accent);outline-offset:-2px;border-radius:6px}@media (max-width:359px){.bnav-tab .bnav-label{font-size:9.5px}.bnav-tab .bnav-icon{font-size:18px}}@media (prefers-reduced-motion:reduce){.bnav-tab,.bnav-tab .bnav-icon{transition:none}}@media (max-width:639px){.bnav{display:block}}