:root{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;font-family:system-ui,Segoe UI,Roboto,sans-serif;line-height:1.5}*{box-sizing:border-box}body{color:#222;background:#f5f5f5;margin:0}#root{width:100%;min-height:100vh}.app{box-sizing:border-box;background-color:#f5f5f5;min-height:100vh;padding:16px}.app-header{text-align:center;margin-bottom:16px}.app-header h1{color:#222;margin:0;font-size:1.5rem}.app-header .subtitle{color:#666;margin:4px 0 0;font-size:.9rem}.app-main{max-width:1000px;margin:0 auto}