.auth-grid{display:grid;grid-template-columns:1fr 1fr;min-height:100vh;color:var(--ink)}
  .brand-panel{background:var(--sidebar);color:var(--bg);padding:48px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
  .auth-mobile-brand{display:none;align-items:center;gap:11px;text-decoration:none;margin-bottom:28px;color:var(--ink)}
  @media (max-width:860px){
    .auth-grid{grid-template-columns:1fr}
    .brand-panel{display:none}
    .auth-mobile-brand{display:flex}
  }