.pdftkp-widget {
	--pdftkp-primary: #2563eb;
	--pdftkp-primary-hover: #1d4ed8;
	--pdftkp-border: #e2e8f0;
	--pdftkp-bg: #ffffff;
	--pdftkp-text: #0f172a;
	--pdftkp-muted: #64748b;
	--pdftkp-error: #dc2626;
	--pdftkp-radius: 12px;

	max-width: 560px;
	margin: 2rem auto;
	padding: 2rem;
	background: var( --pdftkp-bg );
	border: 1px solid var( --pdftkp-border );
	border-radius: var( --pdftkp-radius );
	font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
	color: var( --pdftkp-text );
	box-shadow: 0 1px 3px rgba( 0, 0, 0, 0.06 );
}

@media ( prefers-color-scheme: dark ) {
	.pdftkp-widget {
		--pdftkp-bg: #0f172a;
		--pdftkp-text: #f1f5f9;
		--pdftkp-border: #1e293b;
		--pdftkp-muted: #94a3b8;
	}
}

.pdftkp-widget__title { margin: 0 0 0.25rem; font-size: 1.25rem; font-weight: 600; }
.pdftkp-widget__desc  { margin: 0 0 1.5rem; color: var( --pdftkp-muted ); font-size: 0.9rem; }

.pdftkp-dropzone {
	border: 2px dashed var( --pdftkp-border );
	border-radius: var( --pdftkp-radius );
	padding: 2.5rem 1rem;
	text-align: center;
	cursor: pointer;
	transition: border-color 0.15s ease, background-color 0.15s ease;
}

.pdftkp-dropzone:hover,
.pdftkp-dropzone:focus-visible,
.pdftkp-dropzone.is-dragover {
	border-color: var( --pdftkp-primary );
	background-color: color-mix( in srgb, var( --pdftkp-primary ) 6%, transparent );
	outline: none;
}

.pdftkp-dropzone__icon { display: block; font-size: 1.75rem; margin-bottom: 0.5rem; color: var( --pdftkp-primary ); }
.pdftkp-dropzone__text { color: var( --pdftkp-muted ); font-size: 0.9rem; }
.pdftkp-file-input { display: none; }

.pdftkp-file-list { list-style: none; margin: 1rem 0 0; padding: 0; }
.pdftkp-file-item {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 0.5rem 0.75rem;
	background: color-mix( in srgb, var( --pdftkp-border ) 40%, transparent );
	border-radius: 8px;
	margin-bottom: 0.4rem;
	font-size: 0.85rem;
}

.pdftkp-file-remove {
	background: none;
	border: none;
	color: var( --pdftkp-error );
	cursor: pointer;
	font-size: 1rem;
	line-height: 1;
	padding: 0 0.25rem;
}

.pdftkp-options { margin-top: 1rem; }
.pdftkp-option-field { margin-bottom: 0.85rem; }
.pdftkp-option-field label { display: block; font-size: 0.8rem; font-weight: 600; margin-bottom: 0.3rem; }
.pdftkp-option-input {
	width: 100%;
	padding: 0.5rem 0.65rem;
	border: 1px solid var( --pdftkp-border );
	border-radius: 8px;
	font-size: 0.9rem;
	background: var( --pdftkp-bg );
	color: var( --pdftkp-text );
}
.pdftkp-option-help { margin: 0.3rem 0 0; font-size: 0.75rem; color: var( --pdftkp-muted ); }

.pdftkp-actions { margin-top: 1.25rem; }

.pdftkp-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: 0.65rem 1.25rem;
	border-radius: 8px;
	border: none;
	font-size: 0.95rem;
	font-weight: 600;
	cursor: pointer;
	text-decoration: none;
	transition: background-color 0.15s ease, transform 0.05s ease;
}

.pdftkp-btn:active { transform: scale( 0.98 ); }
.pdftkp-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.pdftkp-btn--primary { background: var( --pdftkp-primary ); color: #fff; width: 100%; }
.pdftkp-btn--primary:hover:not( :disabled ) { background: var( --pdftkp-primary-hover ); }

.pdftkp-progress {
	margin-top: 1.25rem;
	background: var( --pdftkp-border );
	border-radius: 999px;
	height: 8px;
	position: relative;
	overflow: hidden;
}

.pdftkp-progress__bar {
	height: 100%;
	background: var( --pdftkp-primary );
	width: 0;
	transition: width 0.2s ease;
}

.pdftkp-progress__label {
	display: block;
	margin-top: 0.4rem;
	font-size: 0.8rem;
	color: var( --pdftkp-muted );
}

.pdftkp-result {
	margin-top: 1.25rem;
	text-align: center;
}

.pdftkp-result p { margin: 0 0 0.75rem; font-weight: 600; }

.pdftkp-error {
	margin-top: 1rem;
	padding: 0.75rem 1rem;
	border-radius: 8px;
	background: color-mix( in srgb, var( --pdftkp-error ) 10%, transparent );
	color: var( --pdftkp-error );
	font-size: 0.85rem;
}