*{box-sizing:border-box}body{margin:0;padding:0;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh}#app{min-height:100vh;padding:20px 0}.app-header{display:flex;justify-content:flex-end;align-items:center;gap:16px;padding:10px 20px;background:#ffffff1a;margin-bottom:20px}.user-email{color:#fff;font-size:14px}.logout-btn{padding:8px 16px;background:#fff3;color:#fff;border:1px solid rgba(255,255,255,.3);border-radius:6px;cursor:pointer;font-size:14px;transition:background .2s ease}.logout-btn:hover{background:#ffffff4d}