.oso-sert-wrap {
    max-width: 600px;
    margin: 0 auto;
    font-size: 14px;
    color: #333;
}
.oso-sert-title {
    margin: 0 0 20px;
    font-size: 20px;
    color: #222;
}
.oso-sert-step {
    margin-bottom: 20px;
}
.oso-sert-step > label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
}
.oso-sert-select {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 14px;
    box-sizing: border-box;
    background: #fff;
}
.oso-sert-select:focus {
    border-color: #007cba;
    outline: none;
}
.oso-sert-product-wrap {
    position: relative;
}
.oso-sert-search {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 14px;
    box-sizing: border-box;
    margin-bottom: 6px;
}
.oso-sert-search:focus {
    border-color: #007cba;
    outline: none;
}
.oso-sert-product-wrap .oso-sert-select {
    min-height: 200px;
}
.oso-sert-product-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 6px;
    font-size: 12px;
    color: #666;
}
.oso-sert-load-more {
    padding: 4px 12px;
    border: 1px solid #ccc;
    border-radius: 4px;
    background: #f7f7f7;
    cursor: pointer;
    font-size: 12px;
}
.oso-sert-load-more:hover {
    background: #eee;
}
.oso-sert-checkboxes {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.oso-sert-check {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: normal;
    cursor: pointer;
}
.oso-sert-check input[type="checkbox"] {
    margin: 0;
    width: 16px;
    height: 16px;
}
.oso-sert-other-wrap {
    margin-top: 10px;
}
.oso-sert-other-wrap textarea {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 14px;
    box-sizing: border-box;
    resize: vertical;
}
.oso-sert-fields {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 16px;
}
.oso-sert-field input {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 14px;
    box-sizing: border-box;
}
.oso-sert-field input:focus {
    border-color: #007cba;
    outline: none;
}
.oso-sert-captcha-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}
.oso-sert-captcha-question {
    font-weight: 700;
    font-size: 16px;
    white-space: nowrap;
}
.oso-sert-captcha-refresh {
    font-size: 12px;
    text-decoration: underline;
    color: #007cba;
    white-space: nowrap;
}
.oso-sert-captcha-row input[type="number"] {
    width: 80px;
    padding: 8px 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 14px;
    text-align: center;
    box-sizing: border-box;
}
.oso-sert-submit {
    display: inline-block;
    padding: 12px 24px;
    background: var(--primary-color, #007cba);
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
}
.oso-sert-submit:hover {
    opacity: .92;
}
.oso-sert-submit:disabled {
    opacity: .6;
    cursor: not-allowed;
}
.oso-sert-messages {
    margin-top: 10px;
    font-size: 14px;
}
.oso-sert-messages .oso-sert-success {
    color: #2a7;
}
.oso-sert-messages .oso-sert-error {
    color: #c00;
}