.oc-ack-wrap {
    max-width: 920px;
    margin: 0 auto;
    color: #111827;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.oc-ack-document {
    max-height: 520px;
    overflow: auto;
    padding: 20px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    background: #ffffff;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
}

.oc-ack-document h2,
.oc-ack-document h3 {
    margin: 0 0 12px;
    letter-spacing: 0;
}

.oc-ack-document h3 {
    margin-top: 22px;
    font-size: 1.05rem;
}

.oc-ack-document p {
    line-height: 1.55;
}

.oc-ack-form {
    margin-top: 18px;
    padding: 18px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    background: #f9fafb;
}

.oc-ack-field-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.oc-ack-field-grid label,
.oc-ack-checks label {
    display: block;
    font-weight: 650;
}

.oc-ack-field-grid input {
    display: block;
    width: 100%;
    min-height: 42px;
    margin-top: 6px;
    border: 1px solid #9ca3af;
    border-radius: 6px;
    padding: 8px 10px;
    font: inherit;
    background: #ffffff;
}

.oc-ack-signature-preview {
    min-height: 74px;
    margin: 16px 0;
    padding: 16px 18px;
    border: 1px dashed #6b7280;
    border-radius: 8px;
    background: #ffffff;
    font-size: 2rem;
    line-height: 1.2;
}

.oc-ack-checks {
    display: grid;
    gap: 10px;
    margin-top: 10px;
}

.oc-ack-checks label {
    padding: 10px 12px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    background: #ffffff;
    font-weight: 500;
    line-height: 1.4;
}

.oc-ack-checks input {
    margin-right: 8px;
}

.oc-ack-final-text {
    margin: 18px 0 12px;
    font-weight: 650;
}

.oc-ack-submit {
    min-height: 44px;
    border: 0;
    border-radius: 6px;
    padding: 0 18px;
    color: #ffffff;
    background: #111827;
    font-weight: 750;
    cursor: pointer;
}

.oc-ack-submit:hover,
.oc-ack-submit:focus {
    background: #374151;
}

.oc-ack-error,
.oc-ack-success {
    margin: 0 0 14px;
    padding: 12px 14px;
    border-radius: 6px;
    font-weight: 650;
}

.oc-ack-error {
    border: 1px solid #fca5a5;
    background: #fef2f2;
    color: #991b1b;
}

.oc-ack-success {
    border: 1px solid #86efac;
    background: #f0fdf4;
    color: #166534;
}

@media (max-width: 720px) {
    .oc-ack-field-grid {
        grid-template-columns: 1fr;
    }

    .oc-ack-document {
        max-height: 460px;
    }
}