:root{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0}.content{padding:24px;min-height:280px}.app-header{display:flex;align-items:center;justify-content:space-between;gap:16px}.nav-links{display:flex;gap:12px}.nav-link{color:#fff;text-decoration:none;font-weight:500}.nav-link.active{text-decoration:underline}