.bt-form {
    border: 1px solid #e6ebf1;
    border-radius: 18px;
    box-shadow: 0 12px 34px rgba(14, 81, 141, 0.07);
    padding: 32px 32px 28px;
}

.bt-form__title {
    font-family: MontserratSemiBold, sans-serif;
    font-size: 22px;
    line-height: 1.25;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: #0E518D;
    margin: 0;
    padding-bottom: 14px;
    border-bottom: 2px solid #eef2f7;
}

.bt-form__group {
    margin-top: 18px;
}

.bt-form__label {
    display: block;
    font-family: MontserratRegular, sans-serif;
    font-size: 14px;
    letter-spacing: 0.02em;
    color: #5b6b7c;
    margin-bottom: 7px;
}

.bt-form__control {
    width: 100%;
    height: 48px;
    background-color: #f7f9fc;
    border: 1px solid #d9e1ea;
    border-radius: 10px;
    padding: 0 16px;
    font-family: MontserratRegular, sans-serif;
    font-size: 16px;
    color: #1f2937;
    outline: none;
    transition: border-color .2s, box-shadow .2s, background-color .2s;
}

textarea.bt-form__control {
    height: 110px;
    padding: 12px 16px;
    resize: vertical;
    line-height: 1.5;
}

.bt-form__control::placeholder {
    color: #9aa7b4;
}

.bt-form__control:hover {
    border-color: #b9c6d6;
}

.bt-form__control:focus {
    background-color: #fff;
    border-color: #0E518D;
    box-shadow: 0 0 0 3px rgba(14, 81, 141, 0.12);
}

select.bt-form__control {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    cursor: pointer;
    padding-right: 42px;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='14' height='8' fill='none'><path d='M1 1l6 6 6-6' stroke='%230E518D' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/></svg>");
    background-repeat: no-repeat;
    background-position: right 16px center;
}

/* Телефон (intl-tel-input) */
.bt-form .iti {
    width: 100%;
    display: block;
}

.bt-form__section {
    font-family: MontserratSemiBold, sans-serif;
    font-size: 15px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: #0E518D;
    margin: 28px 0 0;
}

.bt-form__row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    align-items: start;
    margin-top: 18px;
}

.bt-form__row--2 {
    grid-template-columns: repeat(2, 1fr);
}

.bt-form__row .bt-form__group {
    margin-top: 0;
}

.bt-form .text-danger {
    font-family: MontserratRegular, sans-serif;
    font-size: 13px;
    color: #d52b1e !important;
    margin: 6px 0 0;
}

.bt-form__actions {
    margin-top: 28px;
    text-align: center;
}

.bt-form__submit {
    min-width: 240px;
    height: 52px;
    padding: 0 32px;
    background: #0E518D;
    color: #fff;
    border: 1px solid #0E518D;
    border-radius: 50px;
    font-family: MontserratRegular, sans-serif;
    font-size: 16px;
    letter-spacing: 0.04em;
    cursor: pointer;
    transition: all .25s;
}

.bt-form__submit:hover {
    background: #fff;
    color: #0E518D;
}

.bt-form__consent {
    margin-top: 14px;
    font-size: 13px;
    line-height: 1.5;
    font-family: MontserratRegular, sans-serif;
}

.bt-form__consent a {
    color: #8a98a8;
    text-decoration: underline;
}

.bt-form__consent a:hover {
    color: #0E518D;
}

@media (max-width: 600px) {
    .bt-form {
        padding: 22px 18px;
        border-radius: 14px;
    }

    .bt-form__row, .bt-form__row--2 {
        grid-template-columns: 1fr;
    }

    .bt-form__title {
        text-align: center;
        font-size: 16px;
    }
}