.hero_21days_block_section {
    position: relative;
    padding-top: 100px;
    padding-left: 30px;
    padding-right: 30px;
    background: #fff url('img/21_dni_s1_background.png') no-repeat center center/cover;
    color: #fff;
}
.hero_21days_block_section::before {
    content: '';
    background: transparent url('img/21_dni_s1_blask.png') no-repeat left center/cover;
    position: absolute;
    width: 100%;
    left: 0;
    bottom: 0;
}
.hero_21days_block_container {
    position: relative;
    display: flex;
    max-width: 1050px;
    margin-left: auto;
    margin-right: auto;
    z-index: 1;
}
.hero_21days_block_container::after {
    content: '';
    background: transparent url('img/21_dni_s1_klucz.png') no-repeat;
    position: absolute;
    top: -80px;
}
.hero_21days_block_container > img {
    bottom: 0;
    max-width: 730px;
}
.hero_21days_block_right_column {
    position: relative;
    text-align: center;
    z-index: 2;
}
.hero_21days_block_heading,
.hero_21days_block_subheading,
.hero_21days_block_description {
    margin-bottom: 30px;
}
.hero_21days_block_heading {
    text-shadow: 5px 4px 9px rgba(0, 0, 0, 0.4);
    font-family: 'EverEnigmaticSans';
    font-weight: 400;
    text-transform: uppercase;
    line-height: 1;
    color: #fff;
}
.hero_21days_block_heading > em {
    font-style: initial;
    font-size: 200px;
    line-height: 100px;
}
.hero_21days_block_description_box {
    max-width: 380px;
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 599px) {
    .hero_21days_block_section::before {
        height: 55%;
    }
    .hero_21days_block_container::after {
        right: -30px;
    }
    .hero_21days_block_container > img {
        margin-right: -85px;
        left: 0;
    }
}
@media (min-width: 600px) and (max-width: 899px) {
    .hero_21days_block_section::before {
        height: 100%;
    }
    .hero_21days_block_container::after {
        right: 30px;
    }
    .hero_21days_block_container > img {
        margin-left: auto;
        margin-right: auto;
        left: 85px;
    }
}
@media (max-width: 899px) {
    .hero_21days_block_container {
        flex-direction: column-reverse;
        padding-bottom: 0;
    }
    .hero_21days_block_container::after {
        width: 100px;
        height: 150px;
        background-position-x: center;
        background-position-y: center;
        background-size: contain;
    }
    .hero_21days_block_container > img {
        position: relative;
    }
    .hero_21days_block_left_column,
    .hero_21days_block_right_column {
        width: 100%;
    }
    .hero_21days_block_left_column {
        height: 30px;
    }
    .hero_21days_block_heading {
        font-size: 42px;
    }
    .hero_21days_block_subheading {
        font-size: 20px;
    }
}
@media (min-width: 900px) {
    .hero_21days_block_section::before {
        height: 100%;
    }
    .hero_21days_block_container {
        padding-bottom: 100px;
    }
    .hero_21days_block_container::after {
        width: 100%;
        height: 100%;
        right: -200px;
        background-position-x: right;
        background-position-y: top;
    }
    .hero_21days_block_container > img {
        position: absolute;
        left: -50px;
    }
    .hero_21days_block_left_column,
    .hero_21days_block_right_column {
        width: 50%;
    }
    .hero_21days_block_heading {
        font-size: 66px;
    }
    .hero_21days_block_subheading {
        font-size: 28px;
    }
}