/* DRM Protection Overlay */
.sbf-drm-blocked {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.95);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 999999;
    color: #fff;
    text-align: center;
    padding: 40px;
}

.sbf-drm-blocked h2 {
    font-size: 2em;
    margin-bottom: 20px;
    color: #e94560;
}

.sbf-drm-blocked p {
    font-size: 1.1em;
    max-width: 500px;
    line-height: 1.6;
    margin-bottom: 30px;
}

.sbf-drm-blocked .sbf-btn {
    padding: 15px 40px;
    background: #e94560;
    color: #fff;
    text-decoration: none;
    border-radius: 8px;
    font-size: 1.1em;
    font-weight: 600;
    transition: background 0.3s ease;
}

.sbf-drm-blocked .sbf-btn:hover {
    background: #c73e54;
}

.sbf-drm-toast {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 15px 25px;
    border-radius: 8px;
    color: #fff;
    font-weight: 500;
    z-index: 999999;
    animation: sbf-slideIn 0.3s ease;
}

.sbf-drm-toast.success { background: #27ae60; }
.sbf-drm-toast.error { background: #e74c3c; }
.sbf-drm-toast.warning { background: #f39c12; }

@keyframes sbf-slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* Prevent text selection and right-click */
.sbf-flipbook-container {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.sbf-flipbook-container img,
.sbf-flipbook-container canvas {
    -webkit-user-drag: none;
    pointer-events: none;
}