*{box-sizing:border-box}body{margin:0;font-family:Roboto,Arial,sans-serif;background-color:#f5f5f5;color:#222}.app-shell{display:flex;justify-content:center;padding:32px 16px}.app-card{width:100%;max-width:720px;background:#fff;border-radius:12px;box-shadow:0 8px 30px #00000014;padding:24px}.app-loading{font-size:16px;color:#6a737d}.app-greeting{font-size:20px;font-weight:600;margin-bottom:16px}.app-context{font-size:14px;line-height:1.6;color:#2a2a2a}.app-context-message{margin-bottom:12px}.app-context-meta{display:flex;gap:12px;color:#6a737d;font-size:13px}.app-deny{padding:16px;border-radius:8px;background-color:#fff2f2;color:#b42318;font-weight:600}.app-error{margin-top:16px;color:#b42318;font-size:14px}.app-warning{margin-top:12px;padding:10px 12px;border-radius:6px;background-color:#fff6e5;color:#7a4b00;font-size:13px}