.line-login__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    width: 100%;
    padding: .75rem 1rem;
    border: none;
    border-radius: .375rem;
    background: #06c755;
    color: #fff;
    font-weight: 600;
    font-size: 1rem;
    line-height: 1.25;
    text-decoration: none;
    cursor: pointer;
    transition: background-color .2s ease;
}

.line-login__btn:hover,
.line-login__btn:focus {
    background: #05b04b;
    color: #fff;
    text-decoration: none;
}

.line-login__btn:focus-visible {
    outline: 3px solid #06c755;
    outline-offset: 2px;
}

.line-login__btn:active {
    background: #049a40;
}

.line-login__icon {
    flex-shrink: 0;
}