* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }

body {
    margin: 0;
    background-color: black;
    font-family: 'Montserrat';
    color: white;
}

::-webkit-scrollbar {
    width: 0px;
    background: transparent;
}
*::-webkit-scrollbar {
    display: none;
}

.title {
    position: relative;
    width: 100%;
    padding: 100px 0 0;
    margin: 0 auto;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.title .detail {
    width: 100%;
    font-size: 13vw;
    font-family: Oswald;
    color: rgb(39, 39, 39, 0.7);
    position: relative;
    line-height: 1.2;
}

.title .top {
    width: 85%;
    margin: 0 auto;
    position: relative;
}

.title .bottom {
    display: flex;
    margin-top: 9%;
    margin-left: 7.5%;
    width: 85%;
    justify-content: space-between;
    padding-bottom: 90px;
    gap: 50px;
}

.title .leftside {
    font-size: 60px;
    font-weight: bold;
    width: 720px;
    text-transform: uppercase;
}

.title .bottom .rightside {
    font-weight: bold;
    font-size: 17px;
    min-width: 500px;
    max-width: 750px;
    line-height: 30px;
}

.title .rightside .btn {
    margin-top: 50px;
}

.title .rightside .btn, .stages .rightside .btn {
    color: white;
    background-color: #D40000;
    border: none;
    padding: 13px 40px;
    border-radius: 7px;
    font-weight: bold;
    font-size: 16px;
}

.features {
    padding-top: 80px;
    background-color: white;
}

.features img {
    width: 90%;
    object-fit: cover;
    display: block;
}

.row_s {
    display: flex;
    flex-wrap: wrap;
    padding: 0 3%;
    justify-content: center;
    column-gap: 50px;
}

.features .cell {
    display: flex;
    align-items: center;
    flex-direction: column;
    min-width: 190px;
    text-align: center;
    width: 300px;
}

.features .name {
    margin-bottom: 0.5vw;
    width: 90%;
    font-size: 24px;
    color: black;
    font-weight: bold;
}

.features .descr {
    font-size: 17px;
    width: 90%;
    color: #828282;
    font-weight: bold;
    margin-bottom: 4vw;
}

.tech {
    display: flex;
    justify-content: space-between;
    background-color: #0F0F0F;
    padding: 100px 7.5% 60px;
}

.tech.middle {
    background-color: #252525;
}

.tech.middle .rightside {
    justify-content: flex-start;
}

.tech .leftside {
    width: 35%;
}

.tech .leftside .name {
    font-size: 40px;
    font-weight: bold;
}

.tech .leftside .text {
    margin-top: 50px;
    font-size: 19px;
    line-height: 30px;
}

.tech .rightside {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    width: 55%;
}

.tech .rightside img {
    width: 70%;
}

.description {
    background-color: #252525;
    padding: 50px 6.5%;
}

.description .name {
    margin: 0 auto;
    text-align: center;
    width: 90%;
    text-transform: uppercase;
    font-size: 40px;
    font-weight: bold;
}

.content {
    display: block;
}

.description .text {
    width: 80%;
    margin: 0 auto;
    text-align: center;
    margin-top: 50px;
    font-size: 19px;
    line-height: 30px;
}

.material {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: white;
    padding: 30px 7.5%;
}

.material .leftside {
    color: black;
}

.material .rightside {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4vw;
}

.material .name {
    font-size: 35px;
    font-weight: bold;
}

.material .text {
    width: 320px;
    margin-top: 15px;
    font-weight: bold;
}

.material .rightside img {
    width: 9vw;
    min-width: 170px;
}

.stages {
    display: flex;
    justify-content: space-between;
    background-color: #0F0F0F;
    padding: 100px 7.5%;
}

.stages .leftside {
    width: 30%;
}
.stages .leftside .text {
    font-size: 35px;
    font-weight: bold;
}

.stages .rightside {
    width: 60%;
}

.stages .stage {
    border-top: 1px solid #D40000;
    padding-top: 30px;
    margin-bottom: 70px;
    text-align: center;
}

.stages .num {
    font-size: 30px;
    font-weight: bold;
    display: inline-block;
    margin-right: 55px;
    vertical-align: top;
}

.stages .rightside .text {
    display: inline-block;
    width: calc(100% - 160px);
    font-size: 18px;
}

.video {
    display: flex;
    justify-content: space-between;
    background-color: white;
    padding-block: 80px;
    padding-left: 7.5%;
    padding-right: 9%;
}

.video .leftside {
    color: black;
}

.video .name {
    font-size: 35px;
    font-weight: bold;
}

.video .text {
    width: 320px;
    margin-top: 20px;
    font-weight: bold;
}

.video .rightside {
    position: relative;
}

.video .rightside iframe {
    position: relative;
    z-index: 40;
}

.video .rightside iframe, .video .rightside .background {
    width: 650px;
    height: 400px;
}

.video .rightside .background {
    background-color: #D40000;
    position: absolute;
    top: 0;
    transform: rotate(3deg);
}

@media screen and (max-width: 1366px) {
    .material .rightside {
        gap: 2vw;
    }

    .material .rightside img {
        min-width: 160px;
    }

}

@media screen and (max-width: 1200px) {
    .title .bottom {
        gap: 0;
    }

    .title .leftside {
        font-size: 38px;
        width: auto;
    }

    .title .bottom .rightside {
        min-width: 600px;
        max-width: 100%;
    }

    .tech, .material, .stages, .video, .title .bottom {
        flex-direction: column;
    }

    .tech.middle .leftside{
        text-align: start;
    }

    .tech.middle .rightside{
        order: 2;
    }

    .tech, .stages, .video {
        padding-top: 30px !important;
    }

    .tech .rightside img {
        width: 100%;
    }

    .leftside, .rightside {
        margin-top: 30px;
        width: 100% !important;
    }

    .stages .num {
        margin-right: 10px;
    }

    .stages .stage {
        margin-bottom: 35px;
    }

    .stages .rightside .text {
        width: calc(100% - 115px);
    }
}

@media screen and (max-width: 820px) {
    .material .rightside {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        justify-items: center;
    }
}

@media screen and (max-width: 768px) {
    .video {
        padding-block: 50px;
    }

    .video .rightside iframe, .video .rightside .background {
        width: 90%;
        height: 250px;
    }

    .features {
        padding-top: 40px;
    }

    .material .rightside {
        gap: 2vw;
    }

    .description .name {
        width: 95%;
        font-size: 30px;
    }

    .description .text {
        width: 90%;
        margin-top: 40px;
        font-size: 16px;
    }
}

@media screen and (max-width: 700px) {

    .title .rightside {
        min-width: 0px !important;
    }

    .title .leftside {
        font-size: 35px;
    }

    .material .rightside img {
        min-width: 113px;
    }

    .features .name {
        margin: 1.5vw 0 0.5vw;
        width: 90%;
        font-size: 20px;
    }

    .features .descr {
        font-size: 16px;
        width: 90%;
        margin-bottom: 4vw;
    }

    .features .cell {
        width: 250px;
    }

    .tech .leftside .name {
        font-size: 32px;
    }

    .tech .leftside .text {
        font-size: 17px;
    }

    .description .name {
        width: 100%;

    }

    .description .text {
        width: 95%;
    }
}

@media screen and (max-width: 590px) {
        .row_s {
            padding: 0;
        }

        .features .name {
        margin: 1vw 0 0.5vw;
        width: 90%;
        font-size: 16px;
    }

    .features .descr {
        font-size: 14px;
        width: 90%;
        margin-bottom: 4vw;
    }

    .features .cell {
        width: 200px;
    }
}

@media screen and (max-width: 450px) {
        .row_s {
            column-gap: 0;

        }

    .features .cell {
        width: 190px;
    }