.mobile-case-shell{display:flex;gap:6px;position:sticky;bottom:8px;z-index:30;margin:16px 0 0;padding:7px;border:1px solid #cbd5e1;border-radius:14px;background:rgba(248,250,252,.96);box-shadow:0 8px 24px rgba(15,23,42,.12)}.mobile-case-shell button{flex:1;min-height:44px;border:0;border-radius:10px;background:transparent;color:#475569;padding:5px 4px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-weight:700}.mobile-case-shell button small{font-size:10px;font-weight:500;color:#64748b}.mobile-case-shell button.is-active{background:#1e3a8a;color:#fff}.mobile-case-shell button.is-active small{color:#dbeafe}@media(min-width:701px){.mobile-case-shell{max-width:760px;margin-left:auto;margin-right:auto}}@media(max-width:600px){.mobile-case-shell{position:fixed;left:8px;right:8px;bottom:8px;margin:0}.mobile-case-shell button{font-size:12px}}