/* Lesson. */

.lesson {
    position: relative;
}

@media only screen and (min-width: 1200px) {
    .lesson-bg {
        position: absolute;
        top: -140px;
        right: 0;
    }
}

@media only screen and (max-width: 1199px) {
    .lesson-bg {
        display: none;
    }
}

.lesson-net {
    display: flex;
    align-items: stretch;
    grid-gap: var(--gap);
    position: relative;
    z-index: 1;
}

.lesson-item {
    --transition-duration: 1s;

    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;

    width: calc(var(--h1) * 7.44);
    min-height: clamp(500px, 45vw, 700px);
    padding: var(--section-gap) var(--container-padding);

    -webkit-transition: all var(--transition-duration);
    -moz-transition: all var(--transition-duration);
    -ms-transition: all var(--transition-duration);
    -o-transition: all var(--transition-duration);
    transition: all var(--transition-duration);
}

.lesson-item:not(.active) {
    text-align: center;
    background-color: var(--main);
    -webkit-border-radius: 500px;
    -moz-border-radius: 500px;
    border-radius: 500px;
}

.lesson-item.active {
    --color-text: var(--black);

    width: 100%;
    color: var(--black);
    background-color: var(--white);
    -webkit-border-radius: 4px;
    -moz-border-radius: 4px;
    border-radius: 4px;
}

.lesson-net .title {
    text-align: center;
}

.lesson-list:not(:first-child) {
    margin-top: var(--i4);
}

.lesson-list {
    max-width: 708px;
    margin-inline: auto;
}

.lesson-list li {
    display: flex;
    align-items: center;
    grid-gap: 16px;

    font-weight: 300;
}

.lesson-list li:not(:first-child) {
    margin-top: var(--i6);
}

.lesson-list img {
    max-width: 28px;
    aspect-ratio: 1/1;
}

.lesson-button:not(:first-child) {
    margin-top: clamp(44px, 3.66vw, var(--i2));
}

.lesson-button {
    text-align: center;
}

/* Lesson. */

@media only screen and (max-width: 767px) {
    .lesson-net {
        flex-direction: column;
    }

    .lesson-item {
        --btn-min-width: 100%;

        width: 100% !important;
        min-height: 0 !important;
    }

    .lesson-button {
        width: var(--btn-min-width);
    }
}