html,body,#app-root{height:100%;margin:0}body{background:#fff}.app-shell{height:100%;min-height:100vh;position:relative;width:100%}.page-frame{border:0;display:block;height:100vh;width:100%}.token-error,.message-screen{align-items:center;background:#fff;color:#202124;display:flex;font-family:Arial,sans-serif;min-height:100vh;justify-content:center;padding:24px}.message-card{border:1px solid #d9dee7;border-radius:8px;max-width:520px;padding:28px}.message-card h1{font-size:24px;margin:0 0 12px}.message-card p{font-size:15px;line-height:1.5;margin:0}