*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}html,body{height:100%;margin:0;padding:0;font-family:system-ui,-apple-system,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--app-bg);color:var(--text-primary)}#root{position:fixed;top:0;left:0;right:0;bottom:0;overflow:hidden}img{display:block;max-width:100%}button{touch-action:manipulation}input::placeholder{color:var(--text-tertiary)}:root{--app-bg: #ffffff;--text-primary: #000000;--text-secondary: #666666;--text-tertiary: #999999;--border: #ddd;--border-input: #ccc;--message-user-bg: #007aff;--message-user-text: #ffffff;--message-assistant-bg: #f0f0f0;--message-assistant-text: #000000;--button-bg: #ffffff;--button-border: #ccc;--button-disabled-bg: #ccc;--button-primary-bg: #007aff;--button-primary-text: #ffffff;--tool-call-user: #ccc;--tool-call-assistant: #888}@media(prefers-color-scheme:dark){:root{--app-bg: #121212;--text-primary: #e0e0e0;--text-secondary: #999999;--text-tertiary: #777777;--border: #333333;--border-input: #555555;--message-user-bg: #0a84ff;--message-user-text: #ffffff;--message-assistant-bg: #1e1e1e;--message-assistant-text: #e0e0e0;--button-bg: #1e1e1e;--button-border: #444444;--button-disabled-bg: #333333;--button-primary-bg: #0a84ff;--button-primary-text: #ffffff;--tool-call-user: #888;--tool-call-assistant: #666}}