.btn-primary {
    color: #fff;
    background-color: #6394bd;
    border-color: #6394bd;
}
.btn-primary:hover {
    color: #fff;
    background-color: #86afd0;
    border-color: #86afd0;
}
.form-area {
    max-width: 300px;
    min-width: 300px;
}

i {
    user-select: none /* 選択を禁止する */
}

@media (any-hover: hover) {
    .password-toggle:hover {
      opacity: 0.7;
    }
}