*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:#f2f4f8;color:#111827}.app{min-height:100vh;display:flex;flex-direction:column}.header{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;background:#111827;color:#fff}.brand{font-weight:700}.nav{display:flex;gap:16px}.nav a{color:#e5e7eb;text-decoration:none;font-weight:500}.nav a.router-link-active{color:#fff;text-decoration:underline}.main{padding:32px 24px;display:flex;justify-content:center}.card{background:#fff;padding:24px;border-radius:12px;box-shadow:0 10px 25px #0f172a14;width:100%;max-width:520px}.form{display:grid;gap:16px}label{display:grid;gap:6px;font-weight:600}input{padding:10px 12px;border-radius:8px;border:1px solid #cbd5f5;font-size:14px}.button{padding:10px 16px;border-radius:8px;border:none;background:#2563eb;color:#fff;font-weight:600;cursor:pointer}.button.outline{background:transparent;border:1px solid #cbd5f5;color:#111827}.button:disabled{opacity:.6;cursor:not-allowed}.error{color:#b91c1c;font-weight:600}.muted{color:#6b7280}.code{background:#0f172a;color:#e2e8f0;padding:12px;border-radius:8px;overflow-x:auto}