.mobile-shell{display:flex;flex-direction:column;position:fixed;top:0;left:0;right:0;width:100%;max-width:100vw;height:100vh;height:100dvh;overflow:hidden;background:#ffffff;color:#0f172a;font-family:Rethink Sans,Helvetica Neue,Arial,sans-serif}.mobile-shell__header{position:sticky;top:0;z-index:50;box-sizing:border-box;width:100%;height:56px;display:grid;grid-template-columns:44px 1fr 44px;align-items:center;background:#ffffff;border-bottom:1px solid #e2e8f0;padding:calc(var(--safe-area-top, 0px) + 4px) 8px 4px}.mobile-shell__icon-btn{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;background:transparent;border:0;padding:0;color:#0f172a;border-radius:8px;cursor:pointer;-webkit-tap-highlight-color:transparent;transition:background-color .12s ease}.mobile-shell__icon-btn:active{background:#f1f5f9}.mobile-shell__icon-btn:disabled{cursor:default;opacity:.45}.mobile-shell__icon-btn:disabled:active{background:transparent}.mobile-shell__title{font-size:18px;font-weight:600;line-height:1.2;color:#0f172a;text-align:center;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding:0 8px}.mobile-shell__main{flex:1 1 auto;min-height:0;display:flex;flex-direction:column;overflow-y:auto;overflow-x:hidden;-webkit-overflow-scrolling:touch;overscroll-behavior:contain;padding-bottom:var(--safe-area-bottom,0)}