:root{--bg:#eef2f7;--panel:#ffffff;--text:#1a2233;--muted:#667085;--border:#e2e8f0;--ok:#16a34a;--deny:#dc2626;--warn:#f59e0b;--accent:#0d9488}*{box-sizing:border-box}body,html{margin:0;padding:0;height:100%;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-user-select:none;-moz-user-select:none;user-select:none;overscroll-behavior:none}button{font:inherit;cursor:pointer}.center{min-height:100vh;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:16px;padding:24px;text-align:center;background:var(--bg)}