/**
 * DreamNextAI KDP Tools — KDP Interior Page Size & Bleed Checker
 * styles (Tool #4).
 *
 * Self-contained like every other tool's stylesheet here: a Page
 * Checker-only page never enqueues checker.css/formatter.css/
 * resizer.css (see class-assets.php), so every class
 * page-checker.js's markup actually generates — including the shared
 * dropzone/controls/fact-row visual concepts other tools also use —
 * is fully defined here too.
 */

/* -----------------------------------------------------------------
   Dropzone + scope note (static PHP shell markup).
   ----------------------------------------------------------------- */

.dnai-kdp-page-checker .dnai-kdp-page-checker__scope-note {
	margin: 0 0 var(--dnai-space-4) 0;
	padding: var(--dnai-space-2) var(--dnai-space-3);
	background: var(--dnai-color-surface);
	border: 1px solid var(--dnai-color-border);
	border-radius: var(--dnai-radius-sm);
	font-size: 0.8125rem;
	line-height: 1.5;
	color: var(--dnai-color-text-muted);
}

.dnai-kdp-page-checker .dnai-kdp-dropzone {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	text-align: center;
	padding: var(--dnai-space-5) var(--dnai-space-3);
	border: 2px dashed var(--dnai-color-border);
	border-radius: var(--dnai-radius);
	background: var(--dnai-color-surface);
	cursor: pointer;
	transition: border-color 0.15s ease, background-color 0.15s ease;
}

.dnai-kdp-page-checker .dnai-kdp-dropzone:hover {
	border-color: var(--dnai-color-primary);
}

.dnai-kdp-page-checker .dnai-kdp-dropzone:focus-visible {
	outline: 3px solid #90b4ff;
	outline-offset: 2px;
}

.dnai-kdp-page-checker .dnai-kdp-dropzone.is-dragover {
	border-color: var(--dnai-color-primary);
	background: #eef4ff;
}

.dnai-kdp-page-checker .dnai-kdp-dropzone__icon {
	font-size: 2.5rem;
	line-height: 1;
	margin-bottom: var(--dnai-space-2);
}

.dnai-kdp-page-checker .dnai-kdp-dropzone__primary {
	margin: 0 0 var(--dnai-space-1) 0;
	font-size: 1.0625rem;
	font-weight: 600;
}

.dnai-kdp-page-checker .dnai-kdp-dropzone__secondary {
	margin: 0 0 var(--dnai-space-2) 0;
	color: var(--dnai-color-text-muted);
	font-size: 0.875rem;
}

.dnai-kdp-page-checker .dnai-kdp-dropzone__help {
	margin: var(--dnai-space-2) 0 0 0;
	font-size: 0.8125rem;
	color: var(--dnai-color-text-muted);
}

.dnai-kdp-page-checker .dnai-kdp-page-checker__results {
	margin-top: var(--dnai-space-4);
}

.dnai-kdp-page-checker .dnai-kdp-page-checker__results[hidden] {
	display: none;
}

/* -----------------------------------------------------------------
   File info + controls panel.
   ----------------------------------------------------------------- */

.dnai-kdp-page-checker .dnai-kdp-preview-card {
	display: flex;
	flex-direction: column;
	gap: var(--dnai-space-3);
	padding: var(--dnai-space-3);
	border: 1px solid var(--dnai-color-border);
	border-radius: var(--dnai-radius);
	background: var(--dnai-color-surface);
}

.dnai-kdp-page-checker .dnai-kdp-preview-card__meta {
	display: grid;
	grid-template-columns: auto 1fr;
	gap: var(--dnai-space-1) var(--dnai-space-3);
	margin: 0;
}

.dnai-kdp-page-checker .dnai-kdp-preview-card__meta dt {
	font-weight: 600;
	color: var(--dnai-color-text-muted);
}

.dnai-kdp-page-checker .dnai-kdp-preview-card__meta dd {
	margin: 0;
	word-break: break-word;
}

.dnai-kdp-page-checker .dnai-kdp-controls {
	margin-top: var(--dnai-space-4);
	padding: var(--dnai-space-3);
	border: 1px solid var(--dnai-color-border);
	border-radius: var(--dnai-radius);
	background: var(--dnai-color-bg);
}

.dnai-kdp-page-checker .dnai-kdp-field {
	margin-bottom: var(--dnai-space-3);
	min-width: 160px;
	flex: 1 1 160px;
}

.dnai-kdp-page-checker .dnai-kdp-field label {
	display: block;
	margin-bottom: var(--dnai-space-1);
	font-weight: 600;
	font-size: 0.9375rem;
}

.dnai-kdp-page-checker .dnai-kdp-select {
	width: 100%;
	min-height: 44px;
	padding: 8px 12px;
	font-size: 1rem;
	border: 1px solid var(--dnai-color-border);
	border-radius: var(--dnai-radius-sm);
	background: var(--dnai-color-bg);
	color: var(--dnai-color-text);
}

.dnai-kdp-page-checker .dnai-kdp-select:disabled {
	opacity: 0.55;
	cursor: not-allowed;
}

.dnai-kdp-page-checker .dnai-kdp-inline-note {
	margin: var(--dnai-space-1) 0;
	font-size: 0.8125rem;
	color: var(--dnai-color-text-muted);
}

.dnai-kdp-page-checker .dnai-kdp-action-bar {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: var(--dnai-space-3);
	margin-top: var(--dnai-space-4);
}

.dnai-kdp-page-checker .dnai-kdp-btn--ghost {
	background: transparent;
	color: var(--dnai-color-text-muted);
	border: 1px solid var(--dnai-color-border);
}

.dnai-kdp-page-checker .dnai-kdp-btn--small {
	min-height: 36px;
	padding: 6px 14px;
	font-size: 0.8125rem;
}

.dnai-kdp-page-checker .dnai-kdp-page-checker__progress {
	font-weight: 600;
}

/* -----------------------------------------------------------------
   Results card: status summary list + per-page list.
   ----------------------------------------------------------------- */

.dnai-kdp-page-checker .dnai-kdp-results-card {
	margin-top: var(--dnai-space-4);
	padding: var(--dnai-space-3);
	border: 2px solid var(--dnai-color-border);
	border-radius: var(--dnai-radius);
}

.dnai-kdp-page-checker .dnai-kdp-results-card__title {
	margin: 0 0 var(--dnai-space-3) 0;
	font-size: 1.125rem;
}

.dnai-kdp-page-checker .dnai-kdp-page-checker__summary-list {
	margin: 0 0 var(--dnai-space-3) 0;
	padding: var(--dnai-space-3);
	list-style: none;
	border-radius: var(--dnai-radius-sm);
	display: flex;
	flex-direction: column;
	gap: 4px;
	font-size: 0.9375rem;
}

.dnai-kdp-page-checker .dnai-kdp-page-checker__summary-list li:first-child {
	font-weight: 700;
	font-size: 1.0625rem;
	margin-bottom: 4px;
}

.dnai-kdp-page-checker .dnai-kdp-page-checker__page-list-wrapper {
	border-top: 1px solid var(--dnai-color-border);
	padding-top: var(--dnai-space-3);
}

.dnai-kdp-page-checker .dnai-kdp-page-checker__page-list {
	margin: var(--dnai-space-2) 0 0 0;
	padding: 0;
	list-style: none;
	display: flex;
	flex-direction: column;
	gap: 2px;
	max-height: 360px;
	overflow-y: auto;
}

.dnai-kdp-page-checker .dnai-kdp-page-checker__page-row {
	padding: var(--dnai-space-2) var(--dnai-space-2);
	border-radius: var(--dnai-radius-sm);
	font-size: 0.8125rem;
	font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.dnai-kdp-page-checker .dnai-kdp-page-checker__page-row--fail {
	background: var(--dnai-color-danger-bg);
	color: var(--dnai-color-danger);
}

.dnai-kdp-page-checker .dnai-kdp-page-checker__page-row--pass {
	background: var(--dnai-color-success-bg);
	color: var(--dnai-color-success);
	/* Collapsed (not shown) by default — only pages with issues are
	   expanded automatically. Still present in the DOM (not removed),
	   so the toggle button below can reveal them and nothing is ever
	   silently dropped. */
	display: none;
}

.dnai-kdp-page-checker .dnai-kdp-page-checker__page-list.is-expanded .dnai-kdp-page-checker__page-row--pass {
	display: block;
}

/* -----------------------------------------------------------------
   Error box.
   ----------------------------------------------------------------- */

.dnai-kdp-page-checker .dnai-kdp-error {
	padding: var(--dnai-space-3);
	border-radius: var(--dnai-radius-sm);
}

.dnai-kdp-page-checker .dnai-kdp-error__heading {
	margin: 0 0 var(--dnai-space-2) 0;
	font-weight: 600;
}

.dnai-kdp-page-checker .dnai-kdp-error ul {
	margin: 0;
	padding-left: 1.25em;
}

/* -----------------------------------------------------------------
   Mobile: same breakpoint/intent as every other tool's stylesheet.
   ----------------------------------------------------------------- */
@media (max-width: 480px) {
	.dnai-kdp-page-checker .dnai-kdp-dropzone {
		padding: var(--dnai-space-4) var(--dnai-space-2);
	}

	.dnai-kdp-page-checker .dnai-kdp-action-bar {
		flex-direction: column;
		align-items: stretch;
	}

	.dnai-kdp-page-checker .dnai-kdp-action-bar .dnai-kdp-btn {
		width: 100%;
	}

	.dnai-kdp-page-checker .dnai-kdp-page-checker__page-list {
		max-height: 260px;
	}
}