/* ==========================================
   CASE STUDIES
========================================== */

.case-study {
    background: #F8FAFC;
    padding: 100px 0;
}

/* カード一覧 */
.case-study__grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
    margin-top: 55px;
}

/* カード本体 */
.case-study__card {
    display: flex;
    flex-direction: column;
    overflow: hidden;

    background: #fff;
    border: 1px solid #E9EDF0;
    border-radius: 24px;

    text-decoration: none;
    color: inherit;

    box-shadow: 0 12px 30px rgba(25, 40, 55, .06);

    transition:
        transform .35s ease,
        box-shadow .35s ease,
        border-color .35s ease;
}

.case-study__card:hover {
    transform: translateY(-8px);
    box-shadow: 0 22px 45px rgba(25, 40, 55, .12);
    border-color: #D8E8DD;
}

/* 写真 */
.case-study__image {
    width: 100%;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: #E8ECEF;
}

.case-study__image img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;

    transition: transform .6s ease;
}

.case-study__card:hover .case-study__image img {
    transform: scale(1.06);
}

/* カード内部 */
.case-study__body {
    display: flex;
    flex-direction: column;
    flex: 1;
    align-items: flex-start;
    padding: 28px 26px 26px;
}

/* 業種タグ */
.case-study__tag {
    display: inline-flex;
    align-items: center;

    padding: 6px 12px;
    margin-bottom: 18px;

    background: #16B966;
    color: #fff;

    border-radius: 7px;
    font-size: 12px;
    font-weight: 700;
    line-height: 1.4;
}

/* 店舗名 */
.case-study__client {
    margin: 0 0 14px;

    color: #697381;
    font-size: 13px;
    font-weight: 500;
    line-height: 1.8;
}

/* 導入事例タイトル */
.case-study__title {
    margin: 0 0 26px;

    color: #293340;
    font-size: 19px;
    font-weight: 700;
    line-height: 1.75;
    letter-spacing: -.025em;
}

/* 詳細リンク */
.case-study__link {
    display: inline-flex;
    align-items: center;
    gap: 12px;

    margin-top: auto;
    padding-top: 16px;

    color: #16A65A;
    font-size: 13px;
    font-weight: 700;
}

.case-study__link span {
    font-size: 18px;
    transition: transform .3s ease;
}

.case-study__card:hover .case-study__link span {
    transform: translate(3px, -3px);
}

/* ==========================================
   Tablet
========================================== */

@media (max-width: 992px) {
    .case-study {
        padding: 80px 0;
    }

    .case-study__grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 22px;
    }

    .case-study__title {
        font-size: 18px;
    }
}

/* ==========================================
   Smartphone
========================================== */

@media (max-width: 600px) {
    .case-study {
        padding: 65px 0;
    }

    .case-study__grid {
        grid-template-columns: 1fr;
        gap: 24px;
        margin-top: 35px;
    }

    .case-study__card {
        max-width: 480px;
        width: 100%;
        margin: 0 auto;
        border-radius: 22px;
    }

    .case-study__image {
        aspect-ratio: 16 / 9;
    }

    .case-study__body {
        padding: 24px 22px 25px;
    }

    .case-study__title {
        font-size: 19px;
        line-height: 1.7;
    }

    .case-study__tag {
        font-size: 11px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .case-study__card,
    .case-study__image img,
    .case-study__link span {
        transition: none;
    }

    .case-study__card:hover,
    .case-study__card:hover .case-study__image img {
        transform: none;
    }
}