/* XH button background fallback, 2026-10-18.
 * Keep labels readable when a browser cannot paint the gradient layer.
 * More specific black/gold theme rules continue to own dark/login buttons.
 */
.btn-primary { background-color: rgb(var(--relay-primary-600, 13 148 136) / 1); }
.btn-primary:hover { background-color: rgb(var(--relay-primary-700, 15 118 110) / 1); }
.btn-danger { background-color: #dc2626; }
.btn-danger:hover { background-color: #b91c1c; }
.btn-success { background-color: #059669; }
.btn-success:hover { background-color: #047857; }
.btn-warning { background-color: #d97706; }
.btn-warning:hover { background-color: #b45309; }