@layer base{*{transition:background-color .3s ease,border-color .3s ease,color .3s ease}}:root{color-scheme:light dark}body{margin:0;min-height:100vh}.dark ::-webkit-scrollbar{width:10px}.dark ::-webkit-scrollbar-track{background:#1f2937}.dark ::-webkit-scrollbar-thumb{background:#4b5563;border-radius:5px}.dark ::-webkit-scrollbar-thumb:hover{background:#6b7280}