@charset "UTF-8";

/*
SP ～519px
tab 520px～959px
pc 960px～
*/

.lesson .lesson_top_img {
    display: block;
    margin-bottom: var(--section-gutter);
}

.lesson .lesson_feature {
    padding: 0 var(--contents-side-gutter);
    margin-bottom: var(--section-gutter);
}

.lesson .lesson_feature_box_wrap {
    margin-bottom: var(--contents-gutter);
}

.lesson .lesson_feature .lesson_feature_box:not(:last-child) {
    margin-bottom: var(--contents-gutter);
}

.lesson .lesson_feature .lesson_feature_box {
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.3);
    border-radius: 15px;
    padding: calc(var(--gutter-base)*2);
}

.lesson .lesson_feature_box picture {
    display: block;
    margin-bottom: var(--gutter-base);
}

.lesson .lesson_feature_box h5 {
    color: var(--main-color);
    font-weight: normal;
    font-size: var(--size-lg);
    text-align: center;
    line-height: 1;
    margin-bottom: var(--gutter-base);
}

.lesson .lesson_feature_text {
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
}

.lesson .lesson_feature_text p:first-child {
    margin-bottom: var(--gutter-base);
}

.lesson .lesson_summary {
    margin-bottom: var(--section-gutter);
    padding: 0 var(--contents-side-gutter);
}

.lesson .lesson_summary .lesson_summary_img {
    margin-bottom: var(--contents-gutter);
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
}

.lesson .lesson_summary .lesson_summary_text {
    margin-bottom: var(--contents-gutter);
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
}

.lesson .lesson_summary .lesson_summary_text ul {
    list-style: disc;
    list-style-position: inside;
}

.lesson .lesson_summary .lesson_summary_text ul li+li {
    margin-top: var(--gutter-base);
}

.lesson .lesson_voice {
    margin-bottom: var(--footer-gutter);
}

.lesson .lesson_voice_inner {
    padding: 0 var(--contents-side-gutter);
}

.lesson_voice .lesson_voice_text {
    margin-bottom: var(--contents-gutter);
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
}

.lesson_voice .lesson_voice_box_wrap {
    margin-bottom: calc(var(--gutter-base)*7);
}

.lesson_voice .lesson_voice_box {
    margin: var(--gutter-base);
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.3);
    padding: calc(var(--gutter-base)*2);
    border-radius: 15px;
    display: grid;
    grid-template-columns: 50px 1fr;
    grid-template-rows: 50px 1fr;
    grid-gap: var(--gutter-base);
    align-items: center;
    position: relative;
    transition: 0.3s;
}

.lesson_voice .lesson_voice_box img {
    border-radius: 50%;
}

.lesson_voice .lesson_voice_box .lesson_voice_box_title {
    color: var(--main-color);
}

.lesson_voice .lesson_voice_box .lesson_voice_box_text {
    grid-column: 1/3;
    grid-row: 2/3;
}

.lesson_voice .lesson_voice_box a {
    display: block;
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    border-radius: 15px;
    transition: 0.3s;
}

@media screen and (min-width:520px) {
    .lesson_voice .lesson_voice_box {
        margin-left: calc(var(--gutter-base)*2);
        margin-right: calc(var(--gutter-base)*2);
    }
}

/*=======min-width:520px=======*/

@media screen and (min-width:960px) {
    .lesson .lesson_top_img {
        margin-bottom: var(--section-gutter-pc);
    }

    .lesson .lesson_feature .lesson_feature_box:not(:last-child) {
        margin-bottom: 0;
    }

    .lesson .lesson_feature_box_wrap {
        margin-bottom: var(--contents-gutter-pc);
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        grid-gap: calc(var(--gutter-base)*5);
    }

    .lesson .lesson_feature_box_wrap .lesson_feature_box {
        margin-bottom: 0;
    }

    .lesson .lesson_summary {
        margin-bottom: var(--section-gutter-pc);
    }

    .lesson .lesson_summary .lesson_summary_img {
        margin-bottom: var(--contents-gutter-pc);
    }

    .lesson .lesson_summary .lesson_summary_text {
        margin-bottom: var(--contents-gutter-pc);
    }

    .lesson_voice .lesson_voice_box_wrap {
        margin-bottom: calc(var(--gutter-base)*12);
    }

    .lesson_voice .lesson_voice_text {
        margin-bottom: var(--contents-gutter-pc);
    }

    .lesson_voice .lesson_voice_box:hover {
        box-shadow: 0 0 4px rgba(0, 0, 0, 0.3);
    }

    .lesson_voice .lesson_voice_box a:hover {
        background-color: rgba(255, 255, 255, 0.8);
    }
}

/*=======min-width:960px=======*/