.chat-window-overlay{top:var(--chat-viewport-top,0px);height:var(--chat-viewport-height,100dvh);padding-bottom:max(.75rem, env(safe-area-inset-bottom));bottom:auto}.chat-window-panel{max-height:100%;overflow:hidden}.chat-window-body{overscroll-behavior:contain;-webkit-overflow-scrolling:touch;min-height:0;scroll-padding:1rem 0 5rem;overflow-y:auto}.chat-form-submit{padding-top:.5rem;padding-bottom:env(safe-area-inset-bottom);z-index:1;position:sticky;bottom:0}@media (width>=640px){.chat-window-overlay{padding-bottom:max(1.25rem, env(safe-area-inset-bottom))}}