/**
 * Assigned Assignments Frontend Styles
 *
 * Compact table-based design for displaying assigned assignments.
 * Uses CSS variables from PressPrimer Assignment theme system for consistency.
 *
 * @package PressPrimer_Assignment_Educator
 * @since 2.0.0
 */

/* ==========================================================================
   CSS Variable Defaults (used if core plugin variables not available)
   ========================================================================== */

.ppae-assigned-assignments {
	/* Fallback values - these will be overridden by core plugin's theme CSS */
	--ppae-primary: var(--ppa-primary, #0073aa);
	--ppae-primary-hover: var(--ppa-primary-hover, #005a87);
	--ppae-primary-light: var(--ppa-primary-light, rgba(0, 115, 170, 0.1));
	--ppae-success: var(--ppa-success, #00a32a);
	--ppae-success-hover: var(--ppa-success-hover, #008a20);
	--ppae-success-light: var(--ppa-success-light, rgba(0, 163, 42, 0.15));
	--ppae-error: var(--ppa-error, #d63638);
	--ppae-error-hover: var(--ppa-error-hover, #b32d2e);
	--ppae-error-light: var(--ppa-error-light, rgba(214, 54, 56, 0.15));
	--ppae-warning: var(--ppa-warning, #dba617);
	--ppae-warning-hover: var(--ppa-warning-hover, #bd8600);
	--ppae-warning-light: var(--ppa-warning-light, rgba(219, 166, 23, 0.15));
	--ppae-info: var(--ppa-info, #722ed1);
	--ppae-info-light: var(--ppa-info-light, rgba(114, 46, 209, 0.15));
	--ppae-text: var(--ppa-text, #1d2327);
	--ppae-text-secondary: var(--ppa-text-secondary, #50575e);
	--ppae-text-muted: var(--ppa-text-light, #787c82);
	--ppae-bg: var(--ppa-background, #ffffff);
	--ppae-bg-secondary: var(--ppa-background-gray, #f6f7f7);
	--ppae-border: var(--ppa-border, #c3c4c7);
	--ppae-font-family: var(--ppa-font-sans, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif);
}

/* ==========================================================================
   Container
   ========================================================================== */

.ppae-assigned-assignments {
	max-width: 900px;
	margin: 0 auto;
	font-family: var(--ppae-font-family);
	font-size: 16px;
	color: var(--ppae-text);
}

/* ==========================================================================
   Filters (Multi-select checkboxes)
   ========================================================================== */

.ppae-filters {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 6px 14px;
	margin-bottom: 12px;
	padding-bottom: 10px;
	border-bottom: 1px solid var(--ppae-border);
}

.ppae-filters__label {
	font-size: 16px;
	color: var(--ppae-text-muted);
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.5px;
}

.ppae-filter {
	display: inline-flex;
	align-items: center;
	gap: 5px;
	cursor: pointer;
	user-select: none;
}

.ppae-filter__checkbox {
	margin: 0;
	cursor: pointer;
}

.ppae-filter__label {
	font-size: 16px;
	color: var(--ppae-text);
}

.ppae-filter__count {
	font-size: 16px;
	color: var(--ppae-text-muted);
}

/* ==========================================================================
   Table
   ========================================================================== */

.ppae-table-wrapper {
	overflow-x: visible;
	-webkit-overflow-scrolling: touch;
}

.ppae-table {
	width: 100%;
	border-collapse: collapse;
	border: 1px solid var(--ppae-border);
	background: var(--ppae-bg);
	font-size: 16px;
}

.ppae-table th,
.ppae-table td {
	padding: 8px 10px;
	text-align: left;
	border-bottom: 1px solid var(--ppae-border);
}

.ppae-table th {
	background: var(--ppae-bg-secondary);
	font-weight: 600;
	font-size: 18px;
	color: var(--ppae-text-secondary);
	text-transform: uppercase;
	letter-spacing: 0.5px;
	white-space: nowrap;
	cursor: pointer;
	user-select: none;
}

.ppae-table th:hover {
	color: var(--ppae-primary);
}

.ppae-table th[data-sort]:hover {
	background: var(--ppae-border);
}

/* Focus styles for keyboard navigation */
.ppae-table th[data-sort]:focus {
	outline: 2px solid var(--ppae-primary);
	outline-offset: -2px;
	background: var(--ppae-border);
}

.ppae-table th[data-sort]:focus:not(:focus-visible) {
	outline: none;
}

.ppae-table th[data-sort]:focus-visible {
	outline: 2px solid var(--ppae-primary);
	outline-offset: -2px;
	background: var(--ppae-border);
}

/* Alternating row shading */
.ppae-table tbody tr:nth-child(even) {
	background: var(--ppae-bg-secondary);
}

.ppae-table tbody tr:hover {
	background: #f0f0f0;
}

.ppae-table tbody tr:last-child td {
	border-bottom: none;
}

/* Column widths */
.ppae-table__col--assignment {
	width: 35%;
}

.ppae-table__col--due {
	width: 22%;
	white-space: nowrap;
}

.ppae-table__col--status {
	width: 13%;
}

.ppae-table__col--score {
	width: 10%;
	text-align: center;
}

.ppae-table__col--action {
	width: 20%;
	text-align: center;
}

.ppae-table th.ppae-table__col--action {
	text-align: center;
	cursor: default;
}

.ppae-table th.ppae-table__col--action:hover {
	background: var(--ppae-bg-secondary);
	color: var(--ppae-text-secondary);
}

.ppae-table td.ppae-table__col--action {
	text-align: center;
}

/* Score column */
.ppae-table th.ppae-table__col--score {
	text-align: center;
	cursor: default;
}

.ppae-table th.ppae-table__col--score:hover {
	background: var(--ppae-bg-secondary);
	color: var(--ppae-text-secondary);
}

.ppae-table td.ppae-table__col--score {
	text-align: center;
}

.ppae-score {
	font-weight: 600;
	font-size: 14px;
}

.ppae-score--passed {
	color: var(--ppae-success);
}

.ppae-score--failed {
	color: var(--ppae-error);
}

.ppae-score--empty {
	color: var(--ppae-text-muted);
}

/* Sort icons */
.ppae-sort-icon {
	display: inline-block;
	width: 0;
	height: 0;
	margin-left: 5px;
	vertical-align: middle;
	opacity: 0.3;
}

.ppae-sort-icon::before,
.ppae-sort-icon::after {
	content: '';
	display: block;
	width: 0;
	height: 0;
	border-left: 3px solid transparent;
	border-right: 3px solid transparent;
}

.ppae-sort-icon::before {
	border-bottom: 3px solid currentColor;
	margin-bottom: 1px;
}

.ppae-sort-icon::after {
	border-top: 3px solid currentColor;
}

th[data-sort-dir="asc"] .ppae-sort-icon {
	opacity: 1;
}

th[data-sort-dir="asc"] .ppae-sort-icon::before {
	border-bottom-color: var(--ppae-primary);
}

th[data-sort-dir="asc"] .ppae-sort-icon::after {
	opacity: 0.3;
}

th[data-sort-dir="desc"] .ppae-sort-icon {
	opacity: 1;
}

th[data-sort-dir="desc"] .ppae-sort-icon::before {
	opacity: 0.3;
}

th[data-sort-dir="desc"] .ppae-sort-icon::after {
	border-top-color: var(--ppae-primary);
}

/* Hidden rows */
.ppae-table__row--hidden {
	display: none !important;
}

/* No results message */
.ppae-no-results {
	text-align: center;
	padding: 20px;
	color: var(--ppae-text-muted);
	font-style: italic;
	font-size: 16px;
}

/* ==========================================================================
   Status Badges (square tag style)
   ========================================================================== */

.ppae-badge {
	display: inline-block;
	padding: 3px 8px;
	border-radius: 2px;
	font-size: 12px;
	font-weight: 500;
	white-space: nowrap;
	text-transform: uppercase;
	letter-spacing: 0.3px;
}

.ppae-badge--not_started {
	background: #f0f0f0;
	color: #8c8c8c;
}

.ppae-badge--in_progress {
	background: #dbeafe;
	color: #1e40af;
}

.ppae-badge--submitted {
	background: var(--ppae-primary-light);
	color: var(--ppae-primary);
}

.ppae-badge--graded {
	background: var(--ppae-success-light);
	color: var(--ppae-success);
}

.ppae-badge--returned {
	background: var(--ppae-success-light);
	color: var(--ppae-success);
}

.ppae-badge--overdue {
	background: var(--ppae-error-light);
	color: var(--ppae-error);
}

.ppae-badge--upcoming {
	background: var(--ppae-info-light);
	color: var(--ppae-info);
}

/* ==========================================================================
   Due Date Styling (keep neutral)
   ========================================================================== */

.ppae-table td.ppae-table__col--due {
	color: var(--ppae-text-secondary);
}

.ppae-available-notice {
	color: var(--ppae-text-muted);
	font-style: italic;
}

/* ==========================================================================
   Buttons (minimal rounding)
   ========================================================================== */

.ppae-btn {
	display: inline-block;
	padding: 6px 14px;
	border: none;
	border-radius: 4px;
	font-size: 16px;
	font-weight: 500;
	text-decoration: none;
	text-align: center;
	cursor: pointer;
	transition: background-color 0.2s, opacity 0.2s;
}

.ppae-btn--sm {
	padding: 5px 12px;
	font-size: 16px;
}

.ppae-btn--primary {
	background: var(--ppae-primary);
	color: #fff;
}

.ppae-btn--primary:hover {
	background: var(--ppae-primary-hover);
	color: #fff;
}

.ppae-btn--success {
	background: var(--ppae-success);
	color: #fff;
}

.ppae-btn--success:hover {
	background: var(--ppae-success-hover);
	color: #fff;
}

.ppae-btn--warning {
	background: var(--ppae-warning);
	color: #fff;
}

.ppae-btn--warning:hover {
	background: var(--ppae-warning-hover);
	color: #fff;
}

.ppae-btn--disabled {
	background: #f0f0f0;
	color: var(--ppae-text-muted);
	cursor: not-allowed;
}

.ppae-btn--disabled:hover {
	background: #f0f0f0;
}

/* ==========================================================================
   Responsive - Stacked card layout for mobile
   ========================================================================== */

@media (max-width: 768px) {
	.ppae-filters {
		gap: 8px 12px;
	}

	.ppae-filters__label {
		width: 100%;
		margin-bottom: 4px;
	}

	.ppae-table-wrapper {
		overflow-x: visible;
	}

	.ppae-table {
		border: none;
	}

	.ppae-table,
	.ppae-table thead,
	.ppae-table tbody,
	.ppae-table th,
	.ppae-table td,
	.ppae-table tr {
		display: block;
	}

	.ppae-table thead {
		position: absolute;
		top: -9999px;
		left: -9999px;
	}

	.ppae-table tbody tr {
		border: 1px solid var(--ppae-border);
		border-radius: 6px;
		margin-bottom: 12px;
		padding: 14px;
		background: var(--ppae-bg);
	}

	.ppae-table tbody tr:nth-child(even) {
		background: var(--ppae-bg);
	}

	.ppae-table tbody tr:hover {
		background: var(--ppae-bg);
	}

	.ppae-table td {
		border: none;
		padding: 6px 0;
		display: flex;
		align-items: center;
		font-size: 16px;
		width: 100%;
	}

	.ppae-table td::before {
		content: attr(data-label);
		flex: 0 0 80px;
		font-weight: 600;
		font-size: 12px;
		color: var(--ppae-text-muted);
		text-transform: uppercase;
	}

	.ppae-table td.ppae-table__col--assignment {
		display: block;
		width: 100%;
		font-weight: 600;
		font-size: 17px;
		padding-bottom: 8px;
		margin-bottom: 4px;
		border-bottom: 1px solid var(--ppae-border);
	}

	.ppae-table td.ppae-table__col--assignment::before {
		display: none;
	}

	.ppae-table td.ppae-table__col--due,
	.ppae-table td.ppae-table__col--status,
	.ppae-table td.ppae-table__col--score,
	.ppae-table td.ppae-table__col--action {
		width: 100%;
	}

	.ppae-table td.ppae-table__col--due::before {
		content: 'Due';
	}

	.ppae-table td.ppae-table__col--status::before {
		content: 'Status';
	}

	.ppae-table td.ppae-table__col--score {
		text-align: left;
	}

	.ppae-table td.ppae-table__col--score::before {
		content: 'Score';
	}

	.ppae-table td.ppae-table__col--action {
		padding-top: 10px;
		margin-top: 6px;
		border-top: 1px solid var(--ppae-border);
	}

	.ppae-table td.ppae-table__col--action::before {
		display: none;
	}

	.ppae-table td.ppae-table__col--action .ppae-btn {
		width: 100%;
		padding: 10px 16px;
	}

	.ppae-btn--sm {
		font-size: 16px;
	}
}