html h1, html h2 {
    color: var(--e24-gray-800);
    
}
html h1 {
    font-size: 56px;
    font-weight: 700;
    padding-bottom: unset;
    text-align: left;
    margin: 20px 0;
}
html h1::after {
    content: none;
}
html h2 {
    font-family: "Open Sans", Arial, Helvetica, sans-serif;
    font-size: 42px;
    font-weight: 600;
    padding: 0;
}
html h3 {
    font-size: 32px;
    font-weight: 800;
}

/*section .row > div {
    display: flex;
    align-content: stretch;
    flex-wrap: wrap;
    flex-grow: 1;
}*/

.row {
    display:         flex;
    flex-wrap: wrap;
}
.row > [class*='col-'] {
    display: flex;
    flex-direction: column;
}

section {
    margin: 60px 0;
    font-family: 'Roboto', "Open Sans", Arial, Helvetica, sans-serif;
    font-size: 18px;
}
.course-item {
    height: 100%;
    margin: 20px 0;
    padding: 50px;
    border-radius: 0 20px 20px;
    background-color: #F0F5F9;

    display: flex;
    flex-direction: column;

}
.wide-spacing {
    padding: 50px 100px;
}
.course-item h3 {
    color: var(--e24-gray-800);
    margin-top: 0;
    margin-bottom: 20px;
}
.course-item > a {
    display: block;

    margin: 10px 0;
    width: 100%;

    text-decoration: underline;
}

/*.links-list {
    margin: 20px 0;
}
.links-list > a {
    display: block;
    text-decoration: underline;
    margin: 20px 0;
}*/
/*.links-list > a:first-of-type {
    margin-top: 0;
}
.links-list > a:last-of-type {
    margin-bottom: 0;
}*/

.course-item a.course-item__btn {
    font-weight: 700;
    /*display: flex;
    align-self: flex-end;*/
    margin: auto 0 20px 0;
    text-decoration: underline;
    padding-top: 10px;
}

.free-course h3 {
    margin: 10px 0 20px;
}

.free-course a, .free-course h3, .related > a:first-of-type, .related h3 {
    color: var(--e24-orange);
}
.free-course a:hover, .free-course h3:hover, .related > a:first-of-type:hover, .related h3:hover {
    color: var(--e24-orange);
}

div.course-banner {
    background: url('../img/blue-bg.png') no-repeat;
    background-size: cover;
    padding: 70px;
    background-color: unset;
    border-radius: 20px;
}
.course-banner > p:nth-of-type(1) {
    font-size: 26px;
    font-weight: 700;
    margin-top: 0;
    margin-bottom: 25px;
}
.course-banner > p:nth-of-type(1) span {
    display: inline-block;
}
.course-banner > p:nth-of-type(2) {
    max-width: 410px;
}
.pre-header {
    text-decoration: underline;
    margin-bottom: 0;
}
.pre-header + a {
    margin-top: 0;
}
.header-group {
    margin-bottom: 0;
}
.header-group__description {
    text-align: center;
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 50px;
}
div.start {
    margin: 10px 0;
}
div.free-course {
    padding: 20px 50px;
    margin: 10px 0;
}
div.related {
    padding-bottom: 20px;
    margin: 10px 0;
}
.related h3 {
    margin-bottom: 20px;
}
a.youtube-block {
    /*margin-top: 40px;
    margin-left: 55px;*/
    padding-left: 55px;
    margin-bottom: 20px;
}
.youtube-block::before {
    content: '';
    display: inline-block;
    position: absolute;
    height: 43px;
    width: 43px;
    left: 65px;
    background: url('../img/youtube.svg') no-repeat;
    background-size: contain;
}
.youtube-block h4 {
    font-weight: 700;
    margin: 0;
}
.youtube-block span {
    font-size: 16px;
}


@media (max-width: 991px) {
    .wide-spacing {
        padding: 50px;
    }
}

@media (max-width: 768px) {
    html h1 {
        font-size: 48px;
        /*margin: 10px 0;*/
    }
    html h2 {
        font-size: 36px;
        margin: 30px 0;
    }
    html h3 {
        font-size: 28px;
    }
    section {
        margin: 30px 0;
    }
    div.course-banner {
        padding: 50px;
    }
    .course-banner > p:nth-of-type(1) {
        font-size: 22px;
        /*margin-bottom: 10px;*/
    }
    .header-group__description {
        margin-bottom: 30px;
    }
}

@media (max-width: 500px) {
    html h1 {
        font-size: 42px;
        /*margin: 20px 0 30px;*/
    }
    html h2 {
        font-size: 32px;
    }
    html h3 {
        font-size: 24px;
    }
    .course-item {
        padding: 40px;
    }
    div.course-banner {
        padding: 40px;
    }
    .course-banner > p:nth-of-type(1) {
        font-size: 20px;
        /*margin-bottom: 10px;*/
    }
    div.free-course {
        padding: 20px 40px;
    }
    .youtube-block::before {
        left: 55px;
    }
    .header-group__description {
        margin-bottom: 20px;
        font-size: 22px;
    }
}

@media (max-width: 400px) {
    html h1 {
        font-size: 36px;
    }
    html h2 {
        font-size: 28px;
    }
    .course-item {
        padding: 30px;
    }
    div.course-banner {
        padding: 30px;
    }
    div.free-course {
        padding: 20px 30px;
    }
    .course-banner > p:nth-of-type(1) {
        font-size: 18px;
    }
    .youtube-block::before {
        left: 45px;
    }
}