.mail-doctor-pro-blur-container {
    position: relative;
}

.mail-doctor-pro-blur-container--restricted .mail-doctor-pro-blur-content {
    filter: blur(4px);
    pointer-events: none;
    user-select: none;
    opacity: 0.6;
}

.mail-doctor-pro-blur-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.mail-doctor-pro-blur-overlay .mail-doctor-upgrade-button {
    background: #2271b1;
    color: #fff;
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 4px;
    font-weight: 600;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: background 0.2s;
}

.mail-doctor-pro-blur-overlay .mail-doctor-upgrade-button:hover {
    background: #135e96;
}

.mail-doctor-pro-blur-container--inline {
    display: inline-block;
    vertical-align: middle;
}

.mail-doctor-pro-blur-container--inline .mail-doctor-pro-blur-overlay {
    background: rgba(255, 255, 255, 0.5);
}

.mail-doctor-pro-blur-container--inline .mail-doctor-pro-blur-overlay .mail-doctor-upgrade-button {
    padding: 4px 8px;
    font-size: 11px;
    white-space: nowrap;
}