.b-certificate {
    background-color: transparent;
    border-radius: 8.23328px;
    max-width: 360px;
    width: 100%;
    height: 228px;
    -webkit-perspective: 1000px;
    perspective: 1000px;
    margin: 0 auto 10px;
}

.b-certificate__inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    -webkit-transition: -webkit-transform 0.6s;
    transition: -webkit-transform 0.6s;
    -o-transition: transform 0.6s;
    transition: transform 0.6s;
    transition: transform 0.6s, -webkit-transform 0.6s;
    -webkit-transform-style: preserve-3d;
    transform-style: preserve-3d;
}

.b-certificate:hover .b-certificate__inner {
    -webkit-transform: rotateY(180deg);
    transform: rotateY(180deg);
}

.b-certificate__image {
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
}

.b-certificate__image img {
    position: absolute;
    height: 100%;
    width: 100%;
    object-fit: cover;
    object-position: center;
}

.b-certificate__info {
    color: var(--color-white);
    position: relative;
    z-index: 1;
}

.b-certificate__front, .b-certificate__back {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

.b-certificate__front {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    border-radius: 8.23328px;
    overflow: hidden;
}

.b-certificate__front .b-certificate__info {
    padding-top: 60px;
}

.b-certificate__front h3 {
    font-family: var(--font-700);
    font-size: 26.3465px;
    line-height: 32px;
    color: var(--color-white);
    padding: 0 20px;
}

.b-certificate__back {
    border-radius: 8.23328px;
    overflow: hidden;
    -webkit-transform: rotateY(180deg);
    transform: rotateY(180deg);
    z-index: 1;
}

.b-certificate__back .b-certificate__info {
    padding-top: 86px;
}

.b-certificate__title {
    font-size: 18px;
    line-height: 22px;
    margin-bottom: 5px;
}

.b-certificate__cost {
    font-family: var(--font-500);
    font-size: 16px;
    line-height: 20px;
    color: var(--color-black);
    margin-bottom: 5px;
}

.b-certificate__cost strong {
    font-family: var(--font-600);
    font-size: 24px;
    line-height: 29px;
}

.b-certificate__number {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    font-family: var(--font-600);
    font-size: 18px;
    line-height: 22px;
    margin-bottom: 5px;
}

.b-certificate__number::before {
    content: "№";
    display: inline-block;
    margin-right: 5px;
}

.b-certificate__address,
.b-certificate__phone {
    font-size: 11px;
    line-height: 14px;
    margin-bottom: 3px;
}

.b-certificate__date {
    font-size: 11px;
    line-height: 14px;
}

.b-certificate__link {
    display: block;
    font-family: var(--font-500);
    font-size: 14px;
    line-height: 17px;
    border: 2px solid var(--color-black);
    border-radius: 69px;
    padding: 13px 18px;
    text-align: center;
    max-width: 360px;
    width: 100%;
    margin: 0 auto;
}

.b-certificate__link:hover {
    text-decoration: none;
}

@media (min-width: 768px) {
    .b-certificate__front h3 {
        font-size: 24.1235px;
    }

    .b-certificate__link {
        display: inline-block;
        max-width: inherit;
        width: auto;
    }
}

@media (min-width: 1024px) {
    .b-certificate {
        border-radius: 11.3722px;
        max-width: inherit;
        width: 100%;
        height: 315px;
        margin: 0 0 17px;
    }

    .b-certificate__front h3 {
        font-size: 36.3911px;
        line-height: 45px;
    }

    .b-certificate__link {
        font-size: 18px;
        line-height: 22px;
        padding: 13px;
    }
}

@media (min-width: 1024px) and (max-width: 1239px) {
    .b-certificate__back {
        display: flex;
        flex-direction: column;
        justify-content: flex-end;
        padding-bottom: 20px;
    }

    .b-certificate__front .b-certificate__info {
        padding-top: 90px;
    }
}

@media (min-width: 1240px) {
    .b-certificate {
        border-radius: 15px;
        height: 416px;
        margin-bottom: 30px;
    }

    .b-certificate__front {
        border-radius: 15px;
    }

    .b-certificate__back {
        border-radius: 15px;
    }

    .b-certificate__front h3 {
        font-size: 48px;
        line-height: 59px;
    }

    .b-certificate__front .b-certificate__info {
        padding-top: 110px;
    }

    .b-certificate__back .b-certificate__info {
        padding-top: 172px;
    }

    .b-certificate__title {
        font-size: 24px;
        line-height: 29px;
        margin-bottom: 10px;
    }

    .b-certificate__cost {
        font-size: 34px;
        line-height: 42px;
        margin-bottom: 10px;
    }

    .b-certificate__cost strong {
        font-size: 48px;
        line-height: 59px;
    }

    .b-certificate__number {
        font-size: 24px;
        line-height: 29px;
        margin-bottom: 17px;
    }

    .b-certificate__address,
    .b-certificate__phone {
        font-size: 18px;
        line-height: 22px;
        margin-bottom: 5px;
    }

    .b-certificate__date {
        font-size: 8.84616px;
        line-height: 11px;
    }

    .b-certificate__link {
        display: inline-block;
        font-size: 24px;
        line-height: 29px;
        padding: 18px;
    }
}