.quality_board {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    justify-content: center;
}

.slogan {
    grid-column: 1/9;
    display: grid;
    justify-content: left;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    margin-bottom: 3rem;
}

.slogan div{
    display: flex;
    justify-content: left;
    align-items: center;
    font-size: 1.3rem;
}

#pdca_title {
    grid-column: 1/9;
    font-size: 2rem;
    justify-self: center;
}

.pdca_cards {
    grid-column: 1/9;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.pdca_card {
    border-radius: 2rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    transition: transform 0.2s;
}

.pdca_card:hover {
    transform: translateY(-5px);
}

.pdca_top {
    display: flex;
    align-items: end;
    justify-content: space-evenly;
    border-radius: 2rem 2rem 0 0;
}

.pdca1 {
    background: linear-gradient(90deg,rgba(28, 26, 196, 1) 0%, rgba(31, 31, 191, 0.79) 40%, rgba(0, 212, 255, 1) 100%);
}

.pdca2 {
    background: linear-gradient(90deg,rgba(196, 173, 26, 1) 0%, rgba(191, 164, 31, 0.79) 40%, rgba(255, 221, 0, 0.89) 100%);
}

.pdca3 {
    background: linear-gradient(90deg,rgba(10, 166, 36, 1) 0%, rgba(25, 168, 32, 0.79) 40%, rgba(4, 196, 20, 0.89) 100%);
}

.pdca4 {
    background: linear-gradient(90deg,rgba(171, 0, 0, 1) 0%, rgba(235, 49, 49, 0.79) 40%, rgba(201, 44, 44, 0.89) 100%);
}

.pdca_num {
    font-size: 4rem;
    font-weight: 900;
    color: rgba(255,255,255,0.6);
    margin: 0;
    padding: 0;
}

.pdca_bottom {
    padding: 1rem;
}

.pdca_slogan {
    font-size: 1.3rem;
    font-weight: 400;
}

.pdca_title {
    font-size: 4rem;
    margin: 0;
    padding: 0;
    font-weight: 600;
    color: rgba(255,255,255,0.6);
}

.certy_board {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1rem;
}

.certiimg{
    width: 100%;
    object-fit: cover;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    transition: transform 0.2s;
}

.certiimg:hover {
    transform: translateY(-5px);
}
.arrow_btn{
    display: none;
}

@media(max-width:768px){
    .quality_board {
        display: grid;
        grid-template-columns: repeat(8, 1fr);
        justify-content: center;
        padding: 0 2vw;
    }
    .slogan div{
        display: grid;
        justify-content: center;
        align-items: center;
        font-size: 1.3rem;
        text-align: center;
    }
    .bolder {
        text-align: center;
    }
    .pdca_slider{
        overflow: hidden;
        position: relative;
        width: 100%;
    }
    .pdca_cards {
        grid-column: unset;
        display: flex;
        grid-template-columns: unset;
        gap: 0;
        margin-bottom: 3rem;
        transition: transform 0.3s ease;
        padding: 0 0;
    }

    .pdca_cards > :first-child{
        margin-left: 10vw;
    }
    
    .pdca_card{
        /* min-width: 100%; */
        flex: 0 0 70%;
        flex-shrink: 0;
        user-select: none;
        margin: 0 1%;
    }
    .pdca_bottom{
        inline-size: 70vw;
    }
    .pdca_card:hover {
        transform: unset;
    }
    .certy_slider{
        position: relative;
        overflow: hidden;
        width: 100%;
    }
    .certy_board {
        display: flex;
        grid-template-columns: unset;
        gap: unset;
        width: auto;
        transition: transform 0.3s ease;
    }
    .certy_slide{
        flex: 0 0 80vw;
        padding: 0 10vw;
    }
    .certy_slide2{
        flex: 0 0 80vw;
        padding: 0 10vw;
    }
    .certy_slide3{
        flex: 0 0 80vw;
        padding: 0 10vw;
    }
    .certiimg{
        width: 100%;
        /* padding: 0 10vw 0 10vw; */
        display: block;
        object-fit: cover;
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        transition: transform 0.2s;
    }
    .certiimg:hover {
        transform: unset;
    }
    .arrow_btn{
        display: flex;
    }
}