:root{--bg-primary: #181816;--text-primary: #f5f5f7}body{font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Helvetica Neue,sans-serif;background:var(--bg-primary);color:var(--text-primary);transition:background-color .3s ease,color .3s ease}*{box-sizing:border-box}