/*card layout*/
.w-layout-grid
{
    display: grid;
    grid-auto-columns: 1fr;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    grid-row-gap: 16px;
    grid-column-gap: 16px;
}
.container 
{
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}
/*add padding for every section */
.section 
{
    padding: 40px 20px;
}
#div
{
    align-self: center;
}

/*heading -------------------------------------*/
.heading_grid
{
    grid-template-rows: auto;
}
.display-heading
{
    font-family: Oswald,Lora,georgia,times,serif;
    font-size: 1.5rem;
    font-weight: 400;
    letter-spacing: .62px;
    text-transform: uppercase;
}
.heading-wrap
{
    display: block;
    margin-bottom: 64px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

/*RECOMMENDATION section -------------------------------------*/
.section.articles 
{
    background-color: rgb(240, 241, 242);
}
.article_container
{
    width: 100%;
    max-width: 1140px;
    margin-right: auto;
    margin-left: auto;
    align-items: center;
}
.article_container a
{
    /* リンクの下線を無くす */
    text-decoration: none;
}
.article_card-container
{
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    padding: 1px 1px 1px;
    flex-direction: column;
    background-color: rgb(0, 113, 226);
}
.article_card-container.relative
{
    position: relative;
}

/*place three articles with one another*/
.article-card-grid
{
    grid-template-columns: 1fr 1fr 1fr;
    grid-template-rows: auto;
    grid-gap: 100px;
}
.articles-heading
{
    margin-bottom: 12px;
    color: black;
    font-size: 18px;
    line-height: 24px;
}
.articles-heading:hover
{
    color:darkred;
    text-decoration: none;
}
.articles_brief
{
    margin-bottom: 20px;
    color: black;
    font-weight: 400;
}
.articles_brief:hover
{
    color:darkred;
    text-decoration: none;
}

/*FIND YOUR LENS section----------------------------------------*/
.section.students
{
    background-color: rgb(240, 241, 242);
}
.first_card_container_students
{
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    padding: 1px 1px 1px;
    flex-direction: column;
    background-color: rgb(240, 241, 242);
/*    display: block;*/
}
.first_card_container_students.relative
{
    position: relative;
}

/*VIDEO section -------------------------------------*/
/*video container*/
.section.videos
{
    background-color: black;
}
.video_container
{
    background-color: black;
    position: relative;
    overflow: hidden;
    width: 100%;
    padding-top: 56.25%; /* 16:9 Aspect Ratio (divide 9 by 16 = 0.5625) */
}
.video_text
{
    font-family: Oswald,Lora,georgia,times,serif;
    font-size: 1.2rem;
    font-weight: 400;
    letter-spacing: .62px;
    text-transform: uppercase;
    color: white;
}
.responsive-iframe
{
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    width: 100%;
    height: 100%;
}

/*for responsive -------------------------------------*/
/*Desktop -------------------------------------*/
@media screen and (max-width: 991px)
{
    .container-2
    {
        justify-content: space-between;
        flex-wrap: wrap;
    }

    .article-card-grid
    {
       grid-template-columns: 1fr 1fr;
    }
}

/*Tablet -------------------------------------*/
@media screen and (max-width: 767px)
{
    .heading_grid
    {
      grid-template-columns: 1fr;
    }

    .card-container.relative
    {
      margin-top: 40px;
    }

    .article-card-grid
    {
        grid-template-columns: 1fr;
    }
}

/*Mobile -------------------------------------*/
@media screen and (max-width: 579px) 
{
    .article-card-grid
    {
        grid-column-gap: 42px;
        grid-row-gap: 42px;
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto auto;
    }
}