/**
 * Worksheets: eyeqboost/worksheets, eyeqboost/reading-worksheets, eyeqboost/grade-picker.
 * Front end and editor canvas. Theme tokens first, hex fallbacks only inside var() in
 * case another theme is active.
 */

.eqb-worksheets,
.eqb-grade-picker {
	--eqb-ws-ink: var(--wp--preset--color--ink, #0F0B2E);
	--eqb-ws-ink-soft: var(--wp--preset--color--ink-soft, #4A4766);
	--eqb-ws-surface: var(--wp--preset--color--surface, #FFFFFF);
	--eqb-ws-purple: var(--wp--preset--color--purple, #7A4DF2);
	--eqb-ws-blue-tint: var(--wp--preset--color--blue-tint, #EAF2FF);
	--eqb-ws-purple-tint: var(--wp--preset--color--purple-tint, #F2ECFF);
	--eqb-ws-sunshine-tint: var(--wp--preset--color--sunshine-tint, #FFF4D6);
	--eqb-ws-radius: var(--wp--custom--radius--medium, 20px);
	--eqb-ws-radius-pill: var(--wp--custom--radius--pill, 999px);
	--eqb-ws-gap: var(--wp--preset--spacing--40, 1.25rem);
	--eqb-ws-gap-small: var(--wp--preset--spacing--30, 0.75rem);

	box-sizing: border-box;
	max-width: 100%;
	color: var(--eqb-ws-ink);
	overflow-wrap: anywhere;
}

.eqb-worksheets *,
.eqb-worksheets *::before,
.eqb-worksheets *::after,
.eqb-grade-picker *,
.eqb-grade-picker *::before,
.eqb-grade-picker *::after {
	box-sizing: border-box;
}

/* In case the active theme does not style it. */
.eqb-grade-picker .screen-reader-text {
	position: absolute !important;
	width: 1px;
	height: 1px;
	margin: -1px;
	padding: 0;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	clip-path: inset(50%);
	white-space: nowrap;
	border: 0;
}

/* -------------------------------------------------------------------------
   Grade picker
   ------------------------------------------------------------------------- */
.eqb-grade-picker {
	padding: var(--eqb-ws-gap);
	border-radius: var(--eqb-ws-radius);
	background: var(--eqb-ws-purple-tint);
	text-align: center;
	scroll-margin-top: var(--wp--preset--spacing--60, 2rem);
}

.eqb-grade-picker__label {
	margin: 0 0 var(--eqb-ws-gap-small);
	font-family: var(--wp--preset--font-family--heading, inherit);
	font-size: var(--wp--preset--font-size--large, 1.25rem);
	font-weight: 800;
}

.eqb-grade-picker__list {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	justify-content: center;
	margin: 0;
	padding: 0;
	list-style: none;
}

.eqb-grade-picker__list li {
	margin: 0;
}

.eqb-grade-picker .eqb-grade-picker__link {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 2.75rem;
	min-height: 2.75rem;
	padding: 0.25rem 0.875rem;
	border: 2px solid var(--eqb-ws-purple);
	border-radius: var(--eqb-ws-radius-pill);
	background: var(--eqb-ws-surface);
	color: var(--eqb-ws-purple);
	font-family: var(--wp--preset--font-family--heading, inherit);
	font-weight: 700;
	text-decoration: none;
}

.eqb-grade-picker .eqb-grade-picker__link:hover {
	color: var(--eqb-ws-ink);
	border-color: var(--eqb-ws-ink);
}

.eqb-grade-picker .eqb-grade-picker__link:focus-visible {
	outline: 3px solid var(--eqb-ws-purple);
	outline-offset: 2px;
}

.eqb-grade-picker .eqb-grade-picker__link.is-current {
	background: var(--eqb-ws-purple);
	color: var(--eqb-ws-surface);
}

.eqb-grade-picker__status {
	margin: var(--eqb-ws-gap-small) 0 0;
	color: var(--eqb-ws-ink-soft);
	font-size: var(--wp--preset--font-size--small, 0.9375rem);
}

/* -------------------------------------------------------------------------
   Shared: collapsible cards (grade cards and activity cards)
   ------------------------------------------------------------------------- */
.eqb-worksheets__grid,
.eqb-worksheets__activities {
	display: grid;
	grid-template-columns: minmax(0, 1fr);
	gap: var(--eqb-ws-gap);
	align-items: start; /* An open card does not stretch its neighbours. */
}

@media (min-width: 600px) {
	.eqb-worksheets__grid,
	.eqb-worksheets__activities {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media (min-width: 1024px) {
	.eqb-worksheets__grid {
		grid-template-columns: repeat(3, minmax(0, 1fr));
	}
}

.eqb-worksheets__grade,
.eqb-worksheets__activity {
	border: 1px solid var(--eqb-ws-purple-tint);
	border-radius: var(--eqb-ws-radius);
	background: var(--eqb-ws-surface);
	box-shadow: var(--wp--preset--shadow--soft, 0 10px 30px -12px rgba(15, 11, 46, 0.18));
}

.eqb-worksheets__summary {
	display: flex;
	gap: var(--eqb-ws-gap-small);
	align-items: center;
	justify-content: space-between;
	min-height: 3.5rem;
	padding: var(--eqb-ws-gap-small) var(--eqb-ws-gap);
	border-radius: var(--eqb-ws-radius);
	cursor: pointer;
	list-style: none;
}

.eqb-worksheets__summary::-webkit-details-marker {
	display: none;
}

/* Chevron */
.eqb-worksheets__summary::after {
	content: "";
	flex: 0 0 auto;
	align-self: flex-start;
	width: 0.625rem;
	height: 0.625rem;
	margin: 0.6rem 0.25rem 0 auto;
	border-right: 3px solid var(--eqb-ws-purple);
	border-bottom: 3px solid var(--eqb-ws-purple);
	transform: rotate(45deg);
	transition: transform 0.15s ease;
}

details[open] > .eqb-worksheets__summary::after {
	transform: rotate(-135deg);
}

.eqb-worksheets__summary:hover {
	background: var(--eqb-ws-purple-tint);
}

.eqb-worksheets__summary:focus-visible {
	outline: 3px solid var(--eqb-ws-purple);
	outline-offset: 2px;
}

details[open] > .eqb-worksheets__summary {
	border-bottom-right-radius: 0;
	border-bottom-left-radius: 0;
	background: var(--eqb-ws-purple-tint);
}

/* -------------------------------------------------------------------------
   One-activity topics: bands of grade cards
   ------------------------------------------------------------------------- */
.eqb-worksheets__band + .eqb-worksheets__band {
	margin-top: var(--wp--preset--spacing--60, 2.5rem);
}

.eqb-worksheets__band-title {
	margin: 0 0 var(--eqb-ws-gap);
	font-family: var(--wp--preset--font-family--heading, inherit);
	font-size: var(--wp--preset--font-size--x-large, 1.75rem);
	font-weight: 800;
	line-height: 1.2;
	letter-spacing: -0.01em;
}

.eqb-worksheets__summary-name {
	font-family: var(--wp--preset--font-family--heading, inherit);
	font-size: var(--wp--preset--font-size--large, 1.25rem);
	font-weight: 800;
	line-height: 1.2;
}

.eqb-worksheets__count {
	margin-left: auto;
	padding: 0.125rem 0.625rem;
	border-radius: var(--eqb-ws-radius-pill);
	background: var(--eqb-ws-blue-tint);
	font-size: var(--wp--preset--font-size--small, 0.9375rem);
	font-weight: 700;
	white-space: nowrap;
}

.eqb-worksheets__grade > .eqb-worksheets__sheets {
	padding: var(--eqb-ws-gap-small) var(--eqb-ws-gap) var(--eqb-ws-gap);
}

/* -------------------------------------------------------------------------
   Activity cards
   ------------------------------------------------------------------------- */
.eqb-worksheets__activity-head {
	display: flex;
	flex-direction: column;
	gap: 0.5rem;
	min-width: 0;
}

.eqb-worksheets__activity.is-static .eqb-worksheets__activity-head {
	padding: var(--eqb-ws-gap) var(--eqb-ws-gap) 0;
}

.eqb-worksheets__activity-name {
	margin: 0;
	font-family: var(--wp--preset--font-family--heading, inherit);
	font-size: var(--wp--preset--font-size--large, 1.25rem);
	font-weight: 800;
	line-height: 1.25;
	color: var(--eqb-ws-ink);
}

.eqb-worksheets__pills {
	display: flex;
	flex-wrap: wrap;
	gap: 0.375rem;
}

.eqb-worksheets__pill {
	padding: 0.125rem 0.625rem;
	border-radius: var(--eqb-ws-radius-pill);
	background: var(--eqb-ws-blue-tint);
	font-size: var(--wp--preset--font-size--small, 0.9375rem);
	font-weight: 700;
	line-height: 1.4;
}

.eqb-worksheets__pill--skill {
	background: var(--eqb-ws-sunshine-tint);
}

.eqb-worksheets__activity-text {
	color: var(--eqb-ws-ink-soft);
	font-weight: 400;
	line-height: 1.5;
}

.eqb-worksheets__activity-body {
	padding: var(--eqb-ws-gap-small) var(--eqb-ws-gap) var(--eqb-ws-gap);
}

/* -------------------------------------------------------------------------
   Nested topic (Hands-on Physical Kits): one wide dropdown under the
   activity cards, holding its own activity cards.
   ------------------------------------------------------------------------- */
.eqb-worksheets__group {
	margin-top: var(--eqb-ws-gap);
	border: 2px dashed var(--eqb-ws-purple);
	border-radius: var(--eqb-ws-radius);
	background: var(--eqb-ws-sunshine-tint);
}

.eqb-worksheets__group[open] {
	border-style: solid;
}

.eqb-worksheets__group-head {
	display: flex;
	flex-direction: column;
	gap: 0.25rem;
	min-width: 0;
}

.eqb-worksheets__group-name {
	font-family: var(--wp--preset--font-family--heading, inherit);
	font-size: var(--wp--preset--font-size--x-large, 1.5rem);
	font-weight: 800;
	line-height: 1.2;
}

.eqb-worksheets__group-summary {
	padding-block: var(--eqb-ws-gap);
}

.eqb-worksheets__group-body {
	padding: var(--eqb-ws-gap);
}

.eqb-worksheets__group-heading {
	margin: var(--wp--preset--spacing--50, 2rem) 0 var(--eqb-ws-gap);
	font-family: var(--wp--preset--font-family--heading, inherit);
	font-size: var(--wp--preset--font-size--x-large, 1.5rem);
	font-weight: 800;
}

.eqb-worksheets__grade-row + .eqb-worksheets__grade-row {
	margin-top: var(--eqb-ws-gap-small);
	padding-top: var(--eqb-ws-gap-small);
	border-top: 1px solid var(--eqb-ws-purple-tint);
}

.eqb-worksheets__grade-label {
	margin: 0 0 0.5rem;
	font-family: var(--wp--preset--font-family--heading, inherit);
	font-weight: 800;
}

/* -------------------------------------------------------------------------
   Sheet download links
   ------------------------------------------------------------------------- */
.eqb-worksheets__sheets {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	margin: 0;
	padding: 0;
	list-style: none;
}

.eqb-worksheets__sheets li {
	margin: 0;
	max-width: 100%;
}

.eqb-worksheets .eqb-worksheets__sheet,
.eqb-worksheets .eqb-worksheets__sheet:visited {
	display: inline-flex;
	gap: 0.5rem;
	align-items: center;
	max-width: 100%;
	min-height: 2.75rem;
	padding: 0.375rem 1rem;
	border: 2px solid var(--eqb-ws-purple);
	border-radius: var(--eqb-ws-radius-pill);
	background: var(--eqb-ws-surface);
	color: var(--eqb-ws-purple);
	font-family: var(--wp--preset--font-family--heading, inherit);
	font-weight: 700;
	line-height: 1.25;
	text-decoration: none;
	transition: background-color 0.15s ease, color 0.15s ease;
}

.eqb-worksheets .eqb-worksheets__sheet:hover,
.eqb-worksheets .eqb-worksheets__sheet:focus-visible {
	background: var(--eqb-ws-purple);
	color: var(--eqb-ws-surface);
}

.eqb-worksheets .eqb-worksheets__sheet:focus-visible {
	outline: 3px solid var(--eqb-ws-purple);
	outline-offset: 3px;
}

/* Download arrow, drawn in CSS so it follows the text colour. */
/* Locked (no free account yet): muted, with a padlock instead of the download arrow. */
.eqb-worksheets .eqb-worksheets__sheet.is-locked {
	color: var(--eqb-ws-ink-soft);
}

.eqb-worksheets__sheet.is-locked .eqb-worksheets__sheet-icon {
	width: 0.75rem;
	height: 0.6rem;
	margin-top: 0.4rem;
	border: 0;
	border-radius: 2px;
	background: currentColor;
}

.eqb-worksheets__sheet.is-locked .eqb-worksheets__sheet-icon::before {
	top: -0.45rem;
	left: 0.125rem;
	width: 0.5rem;
	height: 0.55rem;
	border: 2px solid currentColor;
	border-bottom: 0;
	border-radius: 0.3rem 0.3rem 0 0;
	background: none;
}

.eqb-worksheets__sheet.is-locked .eqb-worksheets__sheet-icon::after {
	content: none;
}

.eqb-worksheets__sheet-icon {
	position: relative;
	flex: 0 0 auto;
	width: 0.875rem;
	height: 1rem;
	border-bottom: 2px solid currentColor;
}

.eqb-worksheets__sheet-icon::before {
	content: "";
	position: absolute;
	top: 0;
	left: calc(50% - 1px);
	width: 2px;
	height: 0.7rem;
	background: currentColor;
}

.eqb-worksheets__sheet-icon::after {
	content: "";
	position: absolute;
	top: 0.3rem;
	left: calc(50% - 0.25rem);
	width: 0.5rem;
	height: 0.5rem;
	border-right: 2px solid currentColor;
	border-bottom: 2px solid currentColor;
	transform: rotate(45deg);
}

/* -------------------------------------------------------------------------
   Empty topic / nothing for the chosen grade
   ------------------------------------------------------------------------- */
.eqb-worksheets__empty {
	padding: var(--wp--preset--spacing--50, clamp(1.5rem, 3vw, 2rem));
	border-radius: var(--eqb-ws-radius);
	background: var(--wp--preset--gradient--soft, linear-gradient(135deg, #EAF2FF 0%, #FCEBFD 100%));
	text-align: center;
}

.eqb-worksheets__empty p {
	margin: 0;
	color: var(--eqb-ws-ink-soft);
}

.eqb-worksheets__empty .eqb-worksheets__empty-title {
	margin-bottom: var(--eqb-ws-gap-small);
	font-family: var(--wp--preset--font-family--heading, inherit);
	font-size: var(--wp--preset--font-size--x-large, 1.75rem);
	font-weight: 800;
	line-height: 1.2;
	color: var(--eqb-ws-ink);
}

.eqb-worksheets__notice {
	margin: 0;
	padding: var(--eqb-ws-gap);
	border-radius: var(--eqb-ws-radius);
	background: var(--eqb-ws-sunshine-tint);
	text-align: center;
}

@media (prefers-reduced-motion: reduce) {
	.eqb-worksheets__summary::after,
	.eqb-worksheets .eqb-worksheets__sheet {
		transition: none;
	}
}