.bottom-nav{height:var(--bottom-nav-height);padding-bottom:var(--safe-area-bottom);-webkit-backdrop-filter:blur(24px);border-top:1px solid var(--border-subtle);z-index:100;background:#fffffff2;justify-content:space-around;align-items:center;display:flex;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -4px 12px #00000008}.nav-item{border-radius:var(--radius-md);transition:var(--transition-base);-webkit-tap-highlight-color:transparent;flex-direction:column;align-items:center;gap:4px;min-width:64px;padding:8px 16px;display:flex;position:relative}.nav-item:active{transform:scale(.92)}.nav-item.active{color:var(--accent-primary)}.nav-item.active:before{content:"";background:var(--accent-primary);border-radius:0 0 4px 4px;width:24px;height:3px;animation:.3s ease-out pop;position:absolute;top:-1px;left:50%;transform:translate(-50%)}.nav-item:not(.active){color:var(--text-muted)}.nav-icon{transition:var(--transition-spring);font-size:22px;line-height:1}.nav-item.active .nav-icon{transform:translateY(-2px)}.nav-label{letter-spacing:.5px;text-transform:uppercase;font-size:10px;font-weight:600}