.substack-clone-box {
    width: 480px;
    max-width: 90%;
    background: #ffffff;
    border: 1px solid #ffffff;
    border-radius: 12px;
    padding: 7px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    box-sizing: border-box;
    margin: 0 auto;
}
.substack-clone-row {
    display: flex;
    gap: 7px;
    flex-wrap: wrap;
}
.substack-clone-input {
    flex: 1 1 auto;
    min-width: 50px;
    padding: 7px 14px;
    font-size: 13px;
    border: 1px solid #ff6719;
    border-radius: 8px;
    outline: none;
}
.substack-clone-input:focus {
    border-color: #ff6719;
}
.substack-clone-button {
    flex: 0 0 auto;
    padding: 7px 14px;
    background: #ff6719;
    color: #ffffff;
    font-size: 13px;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.15s ease;
    opacity: 0.6;
}
.substack-clone-button.enabled {
    opacity: 1;
    cursor: pointer;
}
.substack-clone-button.enabled:hover {
    background: #e45b15;
}