:root{--bg: #f9fafb;--text: #111827;--accent: #2563EB}html,body,#root{height:100%;margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial;background:var(--bg);color:var(--text)}.app{display:flex;flex-direction:column;min-height:100vh}.layout{display:flex;flex:1}.sidebar{width:220px;background:#fff;border-right:1px solid #e5e7eb;padding:1rem}main{flex:1;padding:1rem}.navbar{height:56px;background:#fff;border-bottom:1px solid #e5e7eb;display:flex;align-items:center;padding:0 1rem;font-weight:600}