/* 確認用の広告枠。入稿サイズ確定後に本番クリエイティブへ置き換える。 */
:root {
    --site-ad-width: 360px;
    --site-ad-height: 70px;
    --site-ad-ratio: 5.14;
    --site-bottom-ad-width: 320px;
    --site-bottom-ad-height: 50px;
    --site-bottom-floating-gap: 12px;
    --site-progress-card-clearance: 112px;
}

body:has(.ad-layout-preview--no1.active:not(.display-none):not(.displaynone)) #page_top {
    bottom: calc(var(--site-bottom-ad-height) + var(--site-bottom-floating-gap));
}

body:has(.ad-layout-preview--no1.active:not(.display-none):not(.displaynone)) .learning-progress-card {
    bottom: calc(var(--site-bottom-ad-height) + var(--site-bottom-floating-gap));
}

body:has(.ad-layout-preview--no1.active:not(.display-none):not(.displaynone)) footer {
    padding-bottom: calc(1.5rem + var(--site-bottom-ad-height) + env(safe-area-inset-bottom)) !important;
}

/* 下部固定広告と「続きから始める」カードが同時に表示される場合の退避領域。 */
body.learning-progress-card-visible:has(.ad-layout-preview--no1.active:not(.display-none):not(.displaynone)) footer {
    padding-bottom: calc(1.5rem + var(--site-bottom-ad-height) + var(--site-bottom-floating-gap) + var(--site-progress-card-clearance) + env(safe-area-inset-bottom)) !important;
}

.ad-layout-preview {
    box-sizing: border-box;
    display: none;
    margin: 1rem auto;
    max-width: 100%;
    padding: 0;
    width: 100%;
}

.ad-layout-preview.display-none,
.ad-layout-preview.displaynone,
.ad-layout-preview--display-none {
    display: none !important;
}

.ad-layout-preview.active,
.ad-layout-preview--active {
    display: block;
}

.ad-layout-preview__creative {
    aspect-ratio: var(--site-ad-ratio);
    border: 2px solid rgba(255, 112, 67, 0.9);
    border-radius: 0;
    box-sizing: border-box;
    margin: 0 auto;
    max-width: var(--site-ad-width);
    overflow: hidden;
    position: relative;
    width: 100%;
}

.ad-layout-preview__pair {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    height: 100%;
    width: 100%;
}

.ad-layout-preview__tile {
    align-items: center;
    box-sizing: border-box;
    color: #1f2d3d;
    display: grid;
    gap: 0.2rem 0.6rem;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-rows: auto 1fr;
    min-width: 0;
    overflow: hidden;
    padding: 0.55rem 0.8rem;
    position: relative;
}

.ad-layout-preview__tile + .ad-layout-preview__tile {
    border-left: 1px solid rgba(31, 45, 61, 0.14);
}

.ad-layout-preview__tile::before {
    background: linear-gradient(120deg, rgba(255, 255, 255, 0.72), transparent 42%);
    content: "";
    inset: 0;
    pointer-events: none;
    position: absolute;
}

.ad-layout-preview__tile-label,
.ad-layout-preview__tile-copy,
.ad-layout-preview__tile-cta,
.ad-layout-preview__no1-copy,
.ad-layout-preview__cta {
    position: relative;
    z-index: 1;
}

.ad-layout-preview__tile-label {
    background: rgba(255, 255, 255, 0.82);
    border-radius: 0;
    color: #bd4b2e;
    font-size: 0.58rem;
    font-weight: 800;
    grid-column: 1 / -1;
    justify-self: start;
    line-height: 1.2;
    max-width: 100%;
    overflow: hidden;
    padding: 0.15rem 0.35rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ad-layout-preview__tile-copy {
    min-width: 0;
}

.ad-layout-preview__tile-copy > span {
    display: block;
    font-size: 0.6rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    line-height: 1.1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ad-layout-preview__tile-copy strong {
    display: block;
    font-size: clamp(0.68rem, 1.5vw, 0.9rem);
    line-height: 1.2;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ad-layout-preview__tile-cta,
.ad-layout-preview__cta {
    background: #0f7f88;
    border-radius: 0;
    color: #fff;
    flex: 0 0 auto;
    font-size: clamp(0.58rem, 1.25vw, 0.75rem);
    font-weight: 800;
    padding: 0.3rem 0.5rem;
    white-space: nowrap;
}

/* No.1: 全ページ共通の下部固定。高さは50pxで統一する。 */
.ad-layout-preview--no1 {
    background: #192d42;
    bottom: 0;
    left: 0;
    margin: 0;
    padding: 0.25rem max(0.5rem, env(safe-area-inset-left)) 0 max(0.5rem, env(safe-area-inset-right));
    position: fixed;
    right: 0;
    z-index: 1040;
}

.ad-layout-preview--no1 .ad-layout-preview__creative {
    align-items: center;
    aspect-ratio: auto;
    background: linear-gradient(105deg, #192d42 0%, #2a5362 62%, #3c8c8b 100%);
    color: #fff;
    display: flex;
    gap: 0.75rem;
    height: var(--site-bottom-ad-height);
    justify-content: space-between;
    max-width: var(--site-bottom-ad-width);
    padding: 0.35rem 0.75rem;
}

.ad-layout-preview--no1 .ad-layout-preview__no1-copy {
    align-items: baseline;
    display: flex;
    gap: 0.55rem;
    min-width: 0;
}

.ad-layout-preview--no1 .ad-layout-preview__no1-copy > span {
    color: rgba(255, 255, 255, 0.78);
    flex: 0 0 auto;
    font-size: 0.58rem;
    font-weight: 800;
    white-space: nowrap;
}

.ad-layout-preview--no1 .ad-layout-preview__no1-copy strong {
    color: #fff;
    font-size: 0.82rem;
    line-height: 1.2;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ad-layout-preview--no1 .ad-layout-preview__cta {
    background: #ffd166;
    color: #23364a;
}

/* No.2〜No.7: 本文中のレクタングル広告。 */

.ad-layout-preview--no2 .ad-layout-preview__creative {
    background: linear-gradient(135deg, #fff5df 0%, #fffdf8 48%, #d7edf1 100%);
}

.ad-layout-preview--no34 .ad-layout-preview__creative {
    background: linear-gradient(135deg, #e6f5f4 0%, #fff 58%, #eaf0fb 100%);
}

.ad-layout-preview--no56 .ad-layout-preview__creative {
    background: linear-gradient(135deg, #fff2e9 0%, #fff 55%, #eaf5fa 100%);
}

.ad-layout-preview--no7 .ad-layout-preview__creative {
    background: linear-gradient(135deg, #edf4f8 0%, #fff 54%, #e1f2ed 100%);
}

.ad-layout-preview--no2 .ad-layout-preview__tile-cta {
    background: #e96f48;
}

.ad-layout-preview--no7 .ad-layout-preview__tile-cta {
    background: #2d6f7c;
}

.ad-layout-preview--no2-mobile-second {
    display: none !important;
}

.ad-layout-preview--no34-mobile-second {
    display: none !important;
}

.ad-layout-preview--no56-mobile-second {
    display: none !important;
}

/* 中の広告はスマホ360×70px、タブレット・PC250×200pxに切り替える。 */
@media (min-width: 576px) {
    :root {
        --site-ad-width: 250px;
        --site-ad-height: 200px;
        --site-ad-ratio: 1.25;
        --site-bottom-ad-width: 320px;
    }
}

@media (min-width: 992px) {
    :root {
        --site-bottom-ad-width: 720px;
    }
}

@media (max-width: 575.98px) {
    .ad-layout-preview__tile {
        gap: 0.15rem 0.25rem;
        padding: 0.3rem 0.4rem;
    }

    .ad-layout-preview__tile-label {
        font-size: 0.45rem;
        padding: 0.1rem 0.25rem;
    }

    .ad-layout-preview__tile-copy > span {
        font-size: 0.46rem;
    }

    .ad-layout-preview__tile-copy strong {
        font-size: 0.62rem;
    }

    .ad-layout-preview__tile-cta,
    .ad-layout-preview__cta {
        font-size: 0.5rem;
        padding: 0.25rem 0.35rem;
    }

    .ad-layout-preview--no1 .ad-layout-preview__creative {
        padding: 0.35rem 0.5rem;
    }

    .ad-layout-preview--no1 .ad-layout-preview__no1-copy {
        gap: 0.35rem;
    }

    .ad-layout-preview--no1 .ad-layout-preview__no1-copy > span {
        font-size: 0.5rem;
    }

    .ad-layout-preview--no1 .ad-layout-preview__no1-copy strong {
        font-size: 0.72rem;
    }
}

/* スマホは1広告、タブレット・PCは250×200pxを2個横並びにする。 */
@media (max-width: 575.98px) {
    .ad-layout-preview--no1 {
        padding-left: max(0px, env(safe-area-inset-left));
        padding-right: max(0px, env(safe-area-inset-right));
    }

    .ad-layout-preview--no2 .ad-layout-preview__creative,
    .ad-layout-preview--no34 .ad-layout-preview__creative,
    .ad-layout-preview--no56 .ad-layout-preview__creative,
    .ad-layout-preview--no7 .ad-layout-preview__creative {
        aspect-ratio: auto;
        height: auto;
    }

    .ad-layout-preview--no2 .ad-layout-preview__pair,
    .ad-layout-preview--no34 .ad-layout-preview__pair,
    .ad-layout-preview--no56 .ad-layout-preview__pair,
    .ad-layout-preview--no7 .ad-layout-preview__pair {
        gap: 0.5rem;
        grid-template-columns: 1fr;
        height: auto;
    }

    .ad-layout-preview--no2 .ad-layout-preview__tile,
    .ad-layout-preview--no34 .ad-layout-preview__tile,
    .ad-layout-preview--no56 .ad-layout-preview__tile,
    .ad-layout-preview--no7 .ad-layout-preview__tile {
        height: var(--site-ad-height);
        min-height: var(--site-ad-height);
        width: 100%;
    }

    .ad-layout-preview--no2 .ad-layout-preview__pair > .ad-layout-preview__tile:nth-child(2),
    .ad-layout-preview--no34 .ad-layout-preview__pair > .ad-layout-preview__tile:nth-child(2),
    .ad-layout-preview--no56 .ad-layout-preview__pair > .ad-layout-preview__tile:nth-child(2),
    .ad-layout-preview--no7 .ad-layout-preview__pair > .ad-layout-preview__tile:nth-child(2) {
        display: none;
    }

    .ad-layout-preview--no2 .ad-layout-preview__tile + .ad-layout-preview__tile,
    .ad-layout-preview--no34 .ad-layout-preview__tile + .ad-layout-preview__tile,
    .ad-layout-preview--no56 .ad-layout-preview__tile + .ad-layout-preview__tile,
    .ad-layout-preview--no7 .ad-layout-preview__tile + .ad-layout-preview__tile {
        border-left: 0;
        border-top: 1px solid rgba(31, 45, 61, 0.14);
    }

    .home-page > .ad-layout-preview--no2 .ad-layout-preview__tile:nth-child(2) {
        display: none;
    }

}

@media (max-width: 575.98px) {
    .ad-layout-preview--no2-mobile-second.active:not(.display-none):not(.displaynone) {
        display: block !important;
    }

    .ad-layout-preview--no34-mobile-second.active:not(.display-none):not(.displaynone) {
        display: block !important;
    }

    .ad-layout-preview--no56-mobile-second.active:not(.display-none):not(.displaynone) {
        display: block !important;
    }
}

/* タブレット・PCは250×200pxを2個横並びにする。 */
@media (min-width: 576px) {
    .ad-layout-preview--no2 .ad-layout-preview__creative,
    .ad-layout-preview--no34 .ad-layout-preview__creative,
    .ad-layout-preview--no56 .ad-layout-preview__creative,
    .ad-layout-preview--no7 .ad-layout-preview__creative {
        aspect-ratio: auto;
        height: var(--site-ad-height);
        max-width: 516px;
    }

    .ad-layout-preview--no2 .ad-layout-preview__pair,
    .ad-layout-preview--no34 .ad-layout-preview__pair,
    .ad-layout-preview--no56 .ad-layout-preview__pair,
    .ad-layout-preview--no7 .ad-layout-preview__pair {
        gap: 16px;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        height: var(--site-ad-height);
    }

    .ad-layout-preview--no2 .ad-layout-preview__tile,
    .ad-layout-preview--no34 .ad-layout-preview__tile,
    .ad-layout-preview--no56 .ad-layout-preview__tile,
    .ad-layout-preview--no7 .ad-layout-preview__tile {
        height: var(--site-ad-height);
        min-height: var(--site-ad-height);
    }

    /* 広告が1件だけの場合は、250×200pxのまま中央に配置する。 */
    .ad-layout-preview--no2 .ad-layout-preview__pair > .ad-layout-preview__tile:only-child,
    .ad-layout-preview--no34 .ad-layout-preview__pair > .ad-layout-preview__tile:only-child,
    .ad-layout-preview--no56 .ad-layout-preview__pair > .ad-layout-preview__tile:only-child,
    .ad-layout-preview--no7 .ad-layout-preview__pair > .ad-layout-preview__tile:only-child {
        grid-column: 1 / -1;
        justify-self: center;
        width: var(--site-ad-width);
    }
}