body { font-family: 'Inter', sans-serif; background-color: #f3f4f6; }
        .drag-over { border-color: #4f46e5; background-color: #e0e7ff; }
        .page-selected { border-color: #4f46e5; border-width: 3px; }
        .loader {
            border: 4px solid #f3f3f3;
            border-top: 4px solid #4f46e5;
            border-radius: 50%;
            width: 30px;
            height: 30px;
            animation: spin 1s linear infinite;
        }
        @keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
        /* Custom scrollbar for preview area */
        ::-webkit-scrollbar { width: 8px; height: 8px; }
        ::-webkit-scrollbar-track { background: #f1f1f1; border-radius: 4px; }
        ::-webkit-scrollbar-thumb { background: #c1c1c1; border-radius: 4px; }
        ::-webkit-scrollbar-thumb:hover { background: #a8a8a8; }

.kashapdf-license-notice {
    width: min(100% - 2rem, 80rem);
    margin: 1rem auto;
    color: #6b7280;
    font-size: 0.75rem;
    text-align: center;
}

.kashapdf-license-notice a {
    color: #4f46e5;
    text-decoration: underline;
}