.app-wrapper{min-height:100vh;display:flex;flex-direction:column}.main-content{flex:1}html,body{height:100%;margin:0}body{display:flex;flex-direction:column}app-header{position:sticky;top:0;z-index:1000}app-footer{margin-top:auto}.page-wrapper{min-height:calc(100vh - 140px);padding:24px 0;background:#fafafa}.page-container{max-width:1200px;margin:0 auto;padding:24px}