.first-screen .section-board {
    position: relative;
    overflow: hidden;
}

.first-screen .section-board::before,
.first-screen .section-board::after {
    content: "";
    display: block;
    width: 120%;
    height: 28px;
    background: url(../images/bf2021/bg-calc.jpg);
    position: absolute;
    bottom: 0;
}

.first-screen .section-board::before {
    transform: rotateZ(.5deg);
    left: -55px;
}

.first-screen .section-board::after {
    transform: rotateZ(-4deg);
    bottom: 25px;
    left: -20px;
}

.first-screen .section-board_form {
    padding-bottom: 60px;
}

.sbf-wrap:nth-child(2) {
    display: none;
}

.bf .container {
    padding: 0;
}

.bf-content {
    padding: 45px 15px 40px;
    background: url(../images/bf2021/bg-container_desk.png) center/cover no-repeat;
}

.bf-date {
    width: 290px;
    margin: 10px auto 25px;
    padding: 10px;
    background-color: #FED500;
    font-size: 16px;
    font-weight: 600;
    text-align: center;
}

.bf-title,
.bf-subtitle {
    display: block;
    width: 100%;
    margin: 0 auto;
}

.bf-board {
    padding: 45px 15px;
    background-color: #FED500;
}

.bf-board_form {
    width: 290px;
    margin: 0 auto;
    padding: 20px 15px;
    border: 4px solid #000;
    border-top: none;
    position: relative;
}

.bf-board_form::before {
    content: "";
    display: block;
    width: 120px;
    height: 67px;
    background: url(../images/bf2021/bg-bow.png) center/cover no-repeat;
    position: absolute;
    top: -75px;
    left: 20px;
}

.bf-board_form__sale {
    padding: 5px 10px;
    font-weight: bold;
    text-transform: uppercase;
    position: absolute;
    top: -12px;
    right: 15px;
}

.bf-board_form__sale::before,
.bf-board_form__sale::after {
    content: "";
    display: block;
    height: 4px;
    background-color: #000;
    position: absolute;
    top: calc(50% - 3px);
}

.bf-board_form__sale::before {
    width: 183px;
    left: -183px;
}

.bf-board_form__sale::after {
    width: 19px;
    right: -19px;
}

.bf-board_form__desc {
    margin-bottom: 20px;
    text-align: center;
}

.bf-board_form__desc strong {
    font-family: LatoBlack;
}

.bf-board_form input[type="tel"] {
    margin-bottom: 10px;
}

@media (min-width: 576px) {
    .bf-content {
        padding-top: 70px;
        padding-bottom: 55px;
    }
    .bf-title {
        width: 327px;
    }
    .bf-date {
        width: 327px;
        font-size: 20px;
    }
    .bf-title {
        width: 323px;
    }
    .bf-board_form {
        width: 390px;
    }
    .bf-board_form__sale::before {
        width: 280px;
        left: -280px;
    }
}

@media (min-width: 992px) {
    .bf {
        background: url(../images/bf2021/bg-desk-min.jpg) center/cover no-repeat;
    }
    .bf::after {
        content: "";
        background: linear-gradient(139.87deg, rgba(255, 200, 0, 0.9) 45.02%, rgba(254, 213, 0, 0.9) 47.28%, rgba(254, 220, 0, 0.9) 49.37%, rgba(254, 212, 0, 0.9) 51.63%, rgba(255, 200, 0, 0.9) 53.72%);
        position: absolute;
        top: 0;
        right: 0;
        bottom: 0;
        left: 50%;
    }
    .bf-content,
    .bf-board {
        width: 50%;
    }
    .bf-board {
        padding-top: 110px;
        background-color: transparent;
    }
}

@media (min-width: 1200px) {
    .first-screen .section-board_form {
        padding-top: 75px;
    }
    .bf {
        overflow: hidden;
    }
    .bf::after {
        clip-path: polygon(100% 0, 100% 100%, 0 100%, 0 45%, 15px 45%, 15px 20%, 0 20%, 0 0);
    }
    .bf::before {
        content: "";
        display: block;
        width: 170px;
        background: url(../images/bf2021/bg-balls.png) top left/cover no-repeat;
        position: absolute;
        top: -25px;
        bottom: -50px;
        left: calc(50% - 90px);
    }
    .bf-content {
        padding-top: 100px;
        padding-bottom: 85px;
    }
    .bf-board {
        padding-top: 130px;
        padding-left: 80px;
        position: relative;
        z-index: 1;
    }
    .bf-board_form {
        margin-left: 0;
        padding-top: 40px;
        padding-bottom: 40px;
    }
    .bf-board_form::before {
        width: 150px;
        height: 83px;
        top: -85px;
    }
    .bf-board_form__sale {
        font-size: 26px;
        font-family: LatoMedium;
        font-weight: normal;
        top: -18px;
    }
    .bf-board_form__sale::before {
        width: 240px;
        left: -240px;
    }
}

@media (min-width: 1366px) {
    .first-screen .section-board::before {
        left: -110px;
    }
    .first-screen .section-board::after {
        bottom: 40px;
        left: -35px;
    }
    .bf-content {
        padding-bottom: 100px;
    }
    .bf-board {
        padding-top: 135px;
    }
    .bf-board_form {
        width: 560px;
        padding: 55px 40px;
    }
    .bf-board_form::before {
        width: 180px;
        height: 100px;
        top: -100px;
    }
    .bf-board_form__sale {
        padding-right: 20px;
        padding-left: 20px;
    }
    .bf-board_form__sale::before {
        width: 387px;
        left: -387px;
    }
    .bf-board_form input[type="tel"] {
        width: 245px;
        margin: 0;
        margin-right: 10px;
    }
    .bf-board_form input[type="submit"] {
        width: 215px;
        margin: 0;
    }
}