/* ==========================================================
   OMAI 1 COLUMN SYSTEM v1.1
   ========================================================== */

.om-onecolumn {
    width: 100%;
    max-width: 1120px;
    margin: 0 auto;
    color: var(--om-text);
    line-height: 1.8;
}

.om-onecolumn *,
.om-onecolumn *::before,
.om-onecolumn *::after {
    box-sizing: border-box;
}

.om-onecolumn img {
    display: block;
    max-width: 100%;
    height: auto;
}

.om-onecolumn__inner {
    width: 100%;
    max-width: 1080px;
    margin: 0 auto;
}

.om-onecolumn__section {
    width: 100%;
    margin: 80px auto;
}

.om-onecolumn__title {
    margin: 0 0 40px;
    text-align: center;
    font-family: "Yu Mincho",
                 "Hiragino Mincho ProN",
                 "Hiragino Mincho",
                 serif;
    font-size: 34px;
    font-weight: 700;
    line-height: 1.5;
    letter-spacing: .08em;
    color: var(--om-green);
}

.om-onecolumn__title::after {
    content: "";
    display: block;
    width: 60px;
    height: 2px;
    margin: 18px auto 0;
    background: var(--om-gold);
}


/* 3カラム */

.om-onecolumn__grid--3 {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
}


/* カード */

.om-onecolumn__card {
    padding: 30px 26px;
    background: var(--om-white);
    border: 1px solid var(--om-border);
    border-radius: var(--om-radius);
    box-shadow: var(--om-shadow);
    text-align: center;
}

.om-onecolumn__card-number {
    display: block;
    margin-bottom: 12px;
    font-family: Georgia, serif;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: .15em;
    color: var(--om-gold);
}

.om-onecolumn__card-title {
    margin: 0 0 15px;
    font-family: "Yu Mincho",
                 "Hiragino Mincho ProN",
                 serif;
    font-size: 21px;
    font-weight: 700;
    line-height: 1.6;
    color: var(--om-green);
}

.om-onecolumn__card-text {
    margin: 0;
    font-size: 15px;
    line-height: 1.8;
    color: var(--om-text);
}


/* スマートフォン */

@media (max-width: 768px) {

    .om-onecolumn {
        max-width: 100%;
    }

    .om-onecolumn__section {
        margin: 55px auto;
    }

    .om-onecolumn__inner {
        max-width: 100%;
    }

    .om-onecolumn__title {
        margin-bottom: 30px;
        font-size: 27px;
    }

    .om-onecolumn__grid--3 {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .om-onecolumn__card {
        padding: 24px 20px;
        text-align: left;
    }

    .om-onecolumn__card-number {
        margin-bottom: 6px;
    }

    .om-onecolumn__card-title {
        font-size: 20px;
    }

}