#starcap-login-button[aria-busy="true"],
#starcap-signup-button[aria-busy="true"],
#starcap-forgot-button[aria-busy="true"],
#starcap-reset-password-button[aria-busy="true"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5em;
    cursor: wait;
}

#starcap-login-button[aria-busy="true"]::before,
#starcap-signup-button[aria-busy="true"]::before,
#starcap-forgot-button[aria-busy="true"]::before,
#starcap-reset-password-button[aria-busy="true"]::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    box-sizing: border-box;
    flex-shrink: 0;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: starcap-auth-spin 0.7s linear infinite;
}

@keyframes starcap-auth-spin {
    to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
    #starcap-login-button[aria-busy="true"]::before,
    #starcap-signup-button[aria-busy="true"]::before,
    #starcap-forgot-button[aria-busy="true"]::before,
    #starcap-reset-password-button[aria-busy="true"]::before {
        animation: none;
    }
}