main {
    position: relative;
}

.main {
    position: relative;
    padding: 2rem var(--padding-horizontal) 0;
    height: calc(100vh - 2rem);
}

.main .text_1 {
    position: absolute;
    top: 30%;
    width: 37%;
}

.main .text_1 .header_text {
    font-size: 6.5vw;
    line-height: 75%;
    margin-bottom: 3vw;
}

.main .text_2 {
    width: calc(100% - 37% - var(--padding-horizontal) * 2);
    position: absolute;
    top: 40.5%;
    left: 42%;
}

.main .text_2 .header_text {
    font-size: 4.5vw;
    line-height: 88%;
    margin-bottom: 3vw;
    position: relative;
}

.main .pyramid {
    position: absolute;
    bottom: 0;
    right: 0;
    z-index: -1;
}

.main .pyramid div {
    position: relative;
}

.main .pyramid p {
    position: absolute;
    top: 73%;
    left: 23%;
    font-size: small;
    text-align: center;
    line-height: 1rem;
}



.main .text_2 div:nth-child(2) {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    gap: 0.2rem;
}

.main .check_video {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    gap: 5px;
    padding: 10px 20px;
    background: none;
    border: none;
    cursor: pointer;
    -webkit-transition: 0.2s;
    -o-transition: 0.2s;
    transition: 0.2s;
}

.main .check_video:hover {
    color: var(--blue-hover);
}

.main .play-icon {
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 7px 0 7px 12px;
    border-color: transparent transparent transparent #666;
    -webkit-transform: rotate(0deg);
        -ms-transform: rotate(0deg);
            transform: rotate(0deg);
}

.main .check_video:hover .play-icon {
    border-color: transparent transparent transparent var(--blue-hover);
}

.main .main_bg {
    position: absolute;
    text-align: center;
    pointer-events: none;
    z-index: -2;
}

.main .main_bg img {
    width: 80%;
    height: 90%;
    opacity: 0.07;
}


/* calculators */

.calculators {
    display: -ms-grid;
    display: grid;
    -ms-grid-columns: 1fr 2rem 1fr 2rem 1fr;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 4rem;
    padding: 2rem var(--padding-horizontal) 0;
}

.calculators .item:not(:first-child) {
    position: relative;
    border-radius: 8px;
    padding: 1rem;
    cursor: pointer;
}

.calculators .item .number {
    width: -webkit-max-content;
    width: -moz-max-content;
    width: max-content;
    color: #909090;
    background-color: #fff;
    border-radius: 3px;
    padding: 0 0.4rem;
    font-size: 13px;
    -webkit-transition: .2s;
    -o-transition: .2s;
    transition: .2s;
}

.calculators .item img {
    position: absolute;
    top: 1rem;
    right: 1rem;
    -webkit-transition: .2s;
    -o-transition: .2s;
    transition: .2s;
}

.calculators .item .header_text {
    position: absolute;
    top: auto;
    bottom: 1rem;
    left: 1rem;
    right: 1rem;
    margin: 0;
    font-size: 18px;
    -webkit-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
}

.calculators .item .text {
    opacity: 0;
    margin-top: 4.5rem;
}

.calculators .item:hover .number,
.calculators .item:hover img {
    opacity: 0;
}

.calculators .item:not(:nth-child(1)):hover .header_text {
    top: 1rem;
    bottom: auto;
}

.calculators .item:hover .text {
    opacity: 1;
}

.calculators .item:nth-child(2),
.calculators .item:nth-child(5),
.calculators .item:nth-child(6) {
    background-color: var(--gray-light);
}

.calculators .item:nth-child(3) {
    background-color: var(--green);
}

.calculators .item:nth-child(3) .header_text,
.calculators .item:nth-child(3) .text {
    color: #fff;
}

.calculators .item:nth-child(4) {
    background-color: var(--blue);
}

.calculators .item:nth-child(4) .header_text,
.calculators .item:nth-child(4) .text {
    color: #fff;
}

.calculators .item:nth-child(1) {
    padding: 0;
}

.calculators .item:nth-child(1) .header_text {
    position: relative;
    left: 0;
    bottom: 0;
    -webkit-transform: translateY(-0.25em);
        -ms-transform: translateY(-0.25em);
            transform: translateY(-0.25em);
    font-size: 2rem;
    line-height: 86%;
}

.calculators .item:nth-child(1) .subtext {
    margin-top: 1rem;
}


/* for_whom */

.for_whom {
    background-color: var(--gray-light);
    border-radius: 2rem;
    padding: 3rem var(--padding-horizontal);
}

.for_whom .header {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    gap: 2rem;
    -webkit-box-align: start;
        -ms-flex-align: start;
            align-items: flex-start;
}

.for_whom .header .hint {
    -webkit-box-flex: 1;
        -ms-flex: 1;
            flex: 1; /* занимает 1 часть */
    font-size: 13px;
    color: #909090;
    line-height: 110%;
}

.for_whom .header .header_text {
    -webkit-box-flex: 2;
        -ms-flex: 2;
            flex: 2; /* занимает 2 части (2/3) */
    z-index: 1;
}

.for_whom .header .header_text .text {
    font-size: 2.5rem;
    line-height: 1;
    margin-bottom: 1.5rem;
}

.for_whom .header .header_text .subtext {
    font-size: 15px;
    line-height: 120%;
}

.for_whom .cards {
    position: relative;
    display: -ms-grid;
    display: grid;
    -ms-grid-columns: 1fr 2rem 1fr 2rem 1fr;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.for_whom .cards .item {
    z-index: 1;
}

.for_whom .cards .item:not(:nth-child(3)) {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    padding: 1rem;
    background-color: #fff;
    border-radius: 9px;
}

.for_whom .cards .item .header_text {
    font-weight: 400;
    font-size: 21px;
    line-height: 102%;
}

.for_whom .cards .item:not(:nth-child(9)) .text {
    -webkit-box-flex: 1;
        -ms-flex: 1;
            flex: 1;
    margin-top: 1rem;
    opacity: 0;
    -webkit-transition: 0.2s;
    -o-transition: 0.2s;
    transition: 0.2s;
}

.for_whom .cards .item .bottom {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: justify;
        -ms-flex-pack: justify;
            justify-content: space-between;
    -webkit-box-align: end;
        -ms-flex-align: end;
            align-items: flex-end;
    -webkit-transition: 0.2s;
    -o-transition: 0.2s;
    transition: 0.2s;
}

.for_whom .cards .item .bottom .number {
    color: #909090;
}

.for_whom .cards .item:hover .text {
    opacity: 1;
}

.for_whom .cards .item:not(:nth-child(9)):hover .bottom {
    opacity: 0;
}

.for_whom .cards .item:nth-child(9) {
    background: none;
}

.for_whom .cards .item:nth-child(9) .bottom {
    margin-top: 1rem;
}

.for_whom .pyramid {
    position: absolute;
    height: 300px;
    width: 275px;
    -webkit-transform: rotate(-55deg);
        -ms-transform: rotate(-55deg);
            transform: rotate(-55deg);
    top: -20px;
    right: -100px;
}


/* opportunities */

.opportunities {
    position: relative;
    padding: 3rem var(--padding-horizontal) 5rem;
}

.opportunities .hint {
    font-size: 13px;
    color: #909090;
    line-height: 110%;
}

.opportunities > .header_text {
    width: 88%;
    font-size: 2.5rem;
    line-height: 1;
    margin: 0.75rem 0 1.5rem;
}

.opportunities > .subtext {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    gap: 3rem;
    width: 94%;
}

.opportunities > .subtext div:first-child {
    -webkit-box-flex: 1;
        -ms-flex: 1;
            flex: 1;
}

.opportunities > .subtext div:nth-child(2) {
    -webkit-box-flex: 2;
        -ms-flex: 2;
            flex: 2;
}

.opportunities .cards {
    position: relative;
    display: -ms-grid;
    display: grid;
    -ms-grid-columns: 1fr 1rem 1fr 1rem 1fr;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin: 1.5rem 0 75%;
}

.opportunities .cards .item {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    -webkit-box-pack: justify;
        -ms-flex-pack: justify;
            justify-content: space-between;
    padding: 1rem;
    border-radius: 9px;
    width: 25vw;
}

.opportunities .cards .item .icon {
    padding: .5rem;
    border-radius: 6px;
    width: 42px;
    height: 42px;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
}

.opportunities .cards .item .header_text {
    font-size: 21px;
    line-height: 97%;
    margin: 6rem 0 1rem;
}

.opportunities .cards .item:nth-child(1) {
    background-color: var(--blue);
}

.opportunities .cards .item:nth-child(1) .icon {
    background-color: #fff;
}

.opportunities .cards .item:nth-child(1) * {
    color: #fff;
}

.opportunities .cards .item:nth-child(2) {
    background-color: var(--gray-light);
}

.opportunities .cards .item:nth-child(2) .icon {
    background-color: var(--blue);
}

.opportunities .cards > .item:nth-child(3) {
    background-color: var(--green);
    position: absolute;
    top: 114%;
    left: 20%;
    width: 29%;
}

.opportunities .cards > .item:nth-child(3) .icon {
    background-color: #fff;
}

.opportunities .cards > .item:nth-child(3) .header_text {
    margin-top: 8rem;
}

.opportunities .cards > .item:nth-child(3) * {
    color: #fff;
}

.opportunities .cards > .item:nth-child(3) .item {
    background-color: var(--blue);
    position: absolute;
    top: 60%;
    left: calc(100% - 1rem);
    width: 100%;
    z-index: 2;
}

.opportunities .cards > .item:nth-child(3) .item .icon {
    background-color: #fff;
}

.opportunities .cards > .item:nth-child(3) .item * {
    color: #fff;
}

.opportunities .cards > .item:nth-child(4) {
    background-color: var(--gray-light);
    position: absolute;
    top: 107%;
    right: 0;
    width: 29%;
    z-index: 3;
}

.opportunities .cards .item:nth-child(4) .icon {
    background-color: var(--green);
}

.opportunities .cards .mobile_item_4 {
    display: none;
}

.opportunities .blue_button {
    position: absolute;
    top: 260%;
    left: 20%;
    padding: 0.75rem 1.25rem;
}

.opportunities .bg_circles {
    position: absolute;
    top: 9%;
    left: -8%;
    opacity: 0.11;
    width: 90%;
    height: 90%;
    z-index: -1;
}


/* about */

.about {
    position: relative;
    padding: 0 var(--padding-horizontal) 5rem;
}

.about .hint {
    font-size: 13px;
    color: #909090;
    line-height: 110%;
}

.about > .header_text {
    width: 60%;
    font-size: 2.5rem;
    line-height: 1;
    margin: 0.75rem 0 1.5rem;
}

.about > .subtext {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    gap: 3rem;
    width: 94%;
}

.about > .subtext div:first-child {
    -webkit-box-flex: 1;
        -ms-flex: 1;
            flex: 1;
}

.about > .subtext div:nth-child(2) {
    -webkit-box-flex: 2;
        -ms-flex: 2;
            flex: 2;
}

.about .pyramid {
    position: absolute;
    height: 320px;
    width: 290px;
    -webkit-transform: rotate(52deg);
        -ms-transform: rotate(52deg);
            transform: rotate(52deg);
    bottom: -100px;
    left: -100px;
    z-index: -1;
}


/* when_necessary */

.when_necessary {
    background-color: var(--gray-light);
    border-radius: 2rem;
    padding: 3rem var(--padding-horizontal);
}

.when_necessary .header {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    gap: 2rem;
    -webkit-box-align: start;
        -ms-flex-align: start;
            align-items: flex-start;
}

.when_necessary .header .hint {
    -webkit-box-flex: 1;
        -ms-flex: 1;
            flex: 1; /* занимает 1 часть */
    font-size: 13px;
    color: #909090;
    line-height: 110%;
}

.when_necessary .header .header_text {
    -webkit-box-flex: 2;
        -ms-flex: 2;
            flex: 2; /* занимает 2 части (2/3) */
    z-index: 1;
}

.when_necessary .header .header_text .text {
    font-size: 2.5rem;
    line-height: 1;
    margin-bottom: 1.5rem;
}

.when_necessary .cards {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    gap: 1.5rem;
}

.when_necessary .cards .item {
    -webkit-box-flex: 1;
        -ms-flex: 1;
            flex: 1;
    padding: 1rem;
    background-color: #fff;
    border-radius: 7px;
    font-size: 18px;
    cursor: pointer;
    -webkit-transition: .5s;
    -o-transition: .5s;
    transition: .5s;
}

.when_necessary .cards .item:hover {
    background-color: #f0f0f0;
}

.when_necessary .cards .item.clicked * {
    color: var(--blue);
}

.when_necessary .explanation {
    margin-top: 1.5rem;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    gap: 1.5rem;
}

.when_necessary .explanation div {
    -webkit-box-flex: 1;
        -ms-flex: 1;
            flex: 1;
}

.when_necessary .explanation .image {
    width: 100%;
    background-size: cover;
    background-position: center;
    border-radius: 9px;
}


/* from_founder */

.from_founder {
    padding: 3rem var(--padding-horizontal) 5rem;
}

.from_founder .hint {
    font-size: 13px;
    color: #909090;
    line-height: 110%;
}

.from_founder > .header_text {
    width: 60%;
    font-size: 2.5rem;
    line-height: 1;
    margin: 0.75rem 0 2rem;
}

.from_founder .cards {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    gap: 1rem;
}

.from_founder .cards .item {
    -webkit-box-flex: 1;
        -ms-flex: 1;
            flex: 1;
    padding: 1rem;
    background-color: var(--gray-light);
    border-radius: 17px;
}

.from_founder .cards .item:first-child {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    -webkit-box-pack: justify;
        -ms-flex-pack: justify;
            justify-content: space-between;
}

.from_founder .cards .item .founder {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    gap: 1rem;
    -webkit-box-align: end;
        -ms-flex-align: end;
            align-items: flex-end;
}

.from_founder .cards .item .founder img {
    border-radius: 7px;
    width: 25%;
}

.from_founder .cards .item .founder div {
    font-size: 13px;
    line-height: 110%;
}

.from_founder .cards .item .intro div:last-child {
    font-size: 18px;
}

.from_founder .cards .item:nth-child(2) {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    gap: 1rem;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    position: relative;
}

.from_founder .cards .item .arrow {
    padding: 0.5rem;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    width: 29px;
    height: 29px;
    border-radius: 50%;
    background-color: var(--blue);
    cursor: pointer;
    -webkit-transition: background-color 0.3s ease;
    -o-transition: background-color 0.3s ease;
    transition: background-color 0.3s ease;
    -ms-flex-negative: 0;
        flex-shrink: 0;
}

.from_founder .cards .item .arrow:hover {
    background-color: #0056b3;
}

.from_founder .cards .item .arrow:active {
    -webkit-transform: scale(0.95);
        -ms-transform: scale(0.95);
            transform: scale(0.95);
}

.from_founder .cards .slider {
    margin-top: 4rem;
    -webkit-box-flex: 1;
        -ms-flex: 1;
            flex: 1;
    min-height: 250px;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    -webkit-box-pack: justify;
        -ms-flex-pack: justify;
            justify-content: space-between;
}

.from_founder .cards .slides-container {
    position: relative;
    height: 100%;
}

.from_founder .cards .text-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    -webkit-transition: opacity 0.5s ease, visibility 0.5s ease;
    -o-transition: opacity 0.5s ease, visibility 0.5s ease;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.from_founder .cards .text-slide.active {
    opacity: 1;
    visibility: visible;
    position: relative;
}

.from_founder .cards .text {
    font-size: 16px;
    line-height: 1.4;
}

.from_founder .cards .dots {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    gap: 0.75rem;
    margin-top: 2rem;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
}

.from_founder .cards .dots .dot {
    width: 10px;
    height: 10px;
    background-color: #ccc;
    border-radius: 50%;
    cursor: pointer;
    -webkit-transition: background-color 0.3s ease, -webkit-transform 0.3s ease;
    transition: background-color 0.3s ease, -webkit-transform 0.3s ease;
    -o-transition: background-color 0.3s ease, transform 0.3s ease;
    transition: background-color 0.3s ease, transform 0.3s ease;
    transition: background-color 0.3s ease, transform 0.3s ease, -webkit-transform 0.3s ease;
}

.from_founder .cards .dots .dot.active {
    background-color: var(--blue);
    -webkit-transform: scale(1.2);
        -ms-transform: scale(1.2);
            transform: scale(1.2);
}

.from_founder .cards .dots .dot:hover {
    background-color: var(--blue);
    -webkit-transform: scale(1.1);
        -ms-transform: scale(1.1);
            transform: scale(1.1);
}


/* partners */

.our_partners {
    padding: 3rem var(--padding-horizontal) 3rem;
}

.our_partners > .header_text {
    font-size: 2.5rem;
    line-height: 1;
    margin: 0.75rem 0 2rem;
}

.our_partners .partners_list {
    display: -ms-grid;
    display: grid;
    -ms-grid-columns: 1fr 1.5rem 1fr 1.5rem 1fr 1.5rem 1fr 1.5rem 1fr;
    grid-template-columns: repeat(5, 1fr);
    gap: 1.5rem;
}

.our_partners .partners_list .partner {
    background-color: var(--gray-light);
    padding: 1rem;
    width: 100%;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
}

.our_partners .partners_list .partner img{
    width: 100%;
    height: 100%;
    -o-object-fit: cover;
       object-fit: cover;
}


/* media */

@media (max-width: 800px) {
    /* main */

    .main {
        padding-top: 7rem;
        height: auto;
    }

    .main .text_1 {
        position: static;
        width: 100%;
    }

    .main .text_1 .header_text {
        margin-bottom: 0.88%;
        font-size: 8.5vw;
    }

    .main .text_1 .subtext {
        display: none;
    }

    .main .text_2 {
        position: relative;
        width: 100%;
        left: 0;
    }

    .main .text_2 .header_text {
        font-size: 8.5vw;
        position: static;
    }

    .main .text_2 .header_text::after {
        content: "Инструмент для получения максимальной прибыли с учётом всех переменных затрат, с помощью ценовых экспериментов";
        display: block;
        margin: 1.5rem 0;
        font-size: 1rem;
        line-height: 1.4;
    }

    .main .text_2 div:nth-child(2) {
        -webkit-box-align: center;
            -ms-flex-align: center;
                align-items: center;
        gap: 1rem;
        font-size: 12px;
    }

    .main .text_2 div:nth-child(2) a {
        text-align: center;
    }

    .main .check_video {
        white-space: nowrap;
        padding: .5rem 0;
    }

    .main .pyramid {
        scale: 0.5;
        top: calc(-100% + 0.95em);
        right: -30%;
        width: 100%;
    }

    .main .pyramid p {
        left: 16%;
        font-size: 1rem;
    }

    .main .main_bg {
        text-align: left;
        top: 40%;
        left: -6%;
    }
    

    /* calculators */
    .calculators {
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
            -ms-flex-direction: column;
                flex-direction: column;
        gap: 4vw;
        margin-top: 4.5rem;
    }

    .calculators .item:nth-child(2) {
        -webkit-box-ordinal-group: 3;
            -ms-flex-order: 2;
                order: 2;
    }

    .calculators .item:nth-child(3) {
        -webkit-box-ordinal-group: 5;
            -ms-flex-order: 4;
                order: 4;
    }

    .calculators .item:nth-child(5) {
        -webkit-box-ordinal-group: 4;
            -ms-flex-order: 3;
                order: 3;
    }

    .calculators .item:nth-child(6) {
        -webkit-box-ordinal-group: 5;
            -ms-flex-order: 4;
                order: 4;
    }

    .calculators .item .header_text {
        position: static;
        margin-top: 3.75rem;
    }

    .calculators .item .text {
        margin-top: 0.75rem;
        opacity: 1;
    }

    /* for_whom */
    .for_whom .header {
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
            -ms-flex-direction: column;
                flex-direction: column;
        gap: 1rem;
    }

    .for_whom .header .header_text .text {
        font-size: 1.9rem;
    }

    .for_whom .cards {
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
            -ms-flex-direction: column;
                flex-direction: column;
        gap: 4vw;
    }

    .for_whom .cards .item .text {
        opacity: 1 !important;
        margin-bottom: 1rem;
    }

    .for_whom .cards .item .bottom .number {
        opacity: 1 !important;
    }

    .for_whom .cards .item .bottom .arrow {
        opacity: 0 !important;
    }

    .for_whom .cards .item:nth-child(9) {
        -webkit-box-ordinal-group: 9;
            -ms-flex-order: 8;
                order: 8;
        padding-left: 0;
        padding-right: 0;
    }

    .for_whom .cards .item:nth-child(9) .text {
        opacity: 1 !important;
        margin-bottom: 0;
    }

    /* opportunities */
    .opportunities > .header_text {
        font-size: 1.9rem;
    }

    .opportunities > .subtext div:first-child {
        display: none;
    }

    .opportunities .cards {
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
            -ms-flex-direction: column;
                flex-direction: column;
        gap: 4vw;
        margin-bottom: 4rem;
    }

    .opportunities .cards .item {
        width: 100% !important;
        position: static !important;
    }

    .opportunities .cards .item .header_text {
        margin-top: 5rem;
    }

    .opportunities .cards .desktop_item_4 {
        display: none;
    }

    .opportunities .cards .mobile_item_4 {
        display: block;
        background-color: var(--blue);
    }

    .opportunities .cards .mobile_item_4 .icon {
        background-color: #fff;
    }
    
    .opportunities .cards .mobile_item_4 * {
        color: #fff;
    }

    .opportunities .bg_circles {
        display: none;
    }

    .opportunities .blue_button {
        display: none;
    }

    /* about */
    .about {
        padding-bottom: 3rem;
    }

    .about > .header_text {
        font-size: 1.9rem;
        width: 100%;
    }

    .about > .subtext {
        gap: 1rem;
        width: 100%;
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
            -ms-flex-direction: column;
                flex-direction: column;
    }

    .about .pyramid {
        -webkit-transform: rotate(220deg);
            -ms-transform: rotate(220deg);
                transform: rotate(220deg);
        scale: 0.5;
        top: -11rem;
        right: -8rem;
        left: auto;
    }

    /* when_necessary */
    .when_necessary .header {
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
            -ms-flex-direction: column;
                flex-direction: column;
        gap: 1rem;
    }

    .when_necessary .header .header_text .text {
        font-size: 1.9rem;
    }

    .when_necessary .cards {
        -ms-flex-wrap: wrap;
            flex-wrap: wrap;
        gap: 1rem;
    }

    .when_necessary .cards .item {
        -webkit-box-flex: 0;
            -ms-flex: none;
                flex: none;
        font-size: 16px;
    }

    .when_necessary .cards .item:nth-child(3),
    .when_necessary .cards .item:nth-child(4) {
        width: -webkit-min-content;
        width: -moz-min-content;
        width: min-content;
    }

    .when_necessary .explanation {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
            -ms-flex-direction: column;
                flex-direction: column;
    }

    .when_necessary .explanation .image {
        -webkit-box-flex: 0;
            -ms-flex: none;
                flex: none;
        aspect-ratio: 16 / 9;
    }

    /* from_founder */
    .from_founder {
        padding: 3rem 0 0;
    }

    .from_founder .hint {
        padding: 0 var(--padding-horizontal);
    }

    .from_founder > .header_text {
        padding: 0 var(--padding-horizontal);
        font-size: 1.9rem;
        width: 100%;
    }

    .from_founder .cards {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
            -ms-flex-direction: column;
                flex-direction: column;
    }

    .from_founder .cards .item:first-child {
        background: none;
        padding: 0 var(--padding-horizontal);
    }

    .from_founder .cards .item .founder {
        gap: 2.5rem;
        -webkit-box-align: start;
            -ms-flex-align: start;
                align-items: flex-start;
    }

    .from_founder .cards .item .founder img {
        -webkit-box-flex: 1;
            -ms-flex: 1;
                flex: 1;
    }

    .from_founder .cards .item .intro {
        margin: 1.25rem 0;
    }

    .from_founder .cards .slider {
        margin-top: 1rem;
    }

    .from_founder .cards .dots {
        margin: 1rem 0 2rem;
    }

    /* our_partners */
    .our_partners .partners_list {
        -ms-grid-columns: 1fr 1rem 1fr 1rem 1fr;
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
    }

    .our_partners > .header_text {
        font-size: 1.9rem;
    }
}