.sbf-wrapper {
    max-width: 860px;
    margin: 30px auto;
    padding: 28px;
    background: #ffffff;
    border: 1px solid #e8e8e8;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.sbf-form {
    width: 100%;
}

.sbf-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.sbf-field {
    display: flex;
    flex-direction: column;
}

.sbf-field label {
    margin-bottom: 7px;
    font-size: 14px;
    font-weight: 600;
    color: #222222;
}

.sbf-field input,
.sbf-field select {
    width: 100%;
    min-height: 46px;
    padding: 11px 13px;
    border: 1px solid #d7d7d7;
    border-radius: 10px;
    background: #ffffff;
    color: #222222;
    font-size: 15px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.sbf-field input:focus,
.sbf-field select:focus {
    outline: none;
    border-color: #111111;
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.08);
}

.sbf-field input[readonly] {
    background: #f7f7f7;
    font-weight: 700;
}

.sbf-full {
    grid-column: 1 / -1;
}

.sbf-submit {
    margin-top: 22px;
    min-height: 48px;
    padding: 12px 24px;
    border: 0;
    border-radius: 10px;
    background: #111111;
    color: #ffffff;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.sbf-submit:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.sbf-notice {
    margin-bottom: 20px;
    padding: 13px 15px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
}

.sbf-success {
    background: #eaf8ef;
    color: #1d6b35;
    border: 1px solid #bde5c9;
}

.sbf-error {
    background: #fff0f0;
    color: #a32020;
    border: 1px solid #f0bbbb;
}

@media (max-width: 700px) {
    .sbf-wrapper {
        padding: 20px;
    }

    .sbf-grid {
        grid-template-columns: 1fr;
    }
}