/* public/style.css - Enhanced responsive design */

:root {
	/* Light theme variables */
	--primary-color: #f6821f;
	--primary-hover: #e67419;
	--secondary-color: #ffffff;
	--border-color: #e1e5eb;
	--text-color: #1d1d1d;
	--text-light: #6c757d;
	--hover-color: #f8f9fa;
	--shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.07);
	--shadow-md: 0 4px 6px rgba(0, 0, 0, 0.05);
	--shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
	--radius: 8px;
	--radius-sm: 4px;
	--body-bg: #f9fafb;
	--table-stripe: var(--secondary-color);
	--table-hover: rgba(246, 130, 31, 0.15);
	--header-bg: #fafbfc;
	--table-odd: #f9fafb;
	--code-bg: #f5f7fa;
	--code-border: #e9ecef;
	--transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme='dark'] {
	--primary-color: #ff9d4d;
	--primary-hover: #ffb570;
	--secondary-color: #1a1a1a;
	--border-color: #2d2d2d;
	--text-color: #f5f5f5;
	--text-light: #a0a0a0;
	--hover-color: #252525;
	--shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
	--shadow-md: 0 4px 6px rgba(0, 0, 0, 0.2);
	--shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.3);
	--body-bg: #121212;
	--table-stripe: #1d1d1d;
	--table-hover: rgba(255, 157, 77, 0.45);
	--header-bg: #1f1f1f;
	--table-odd: #161616;
	--code-bg: #1f1f1f;
	--code-border: #2d2d2d;
}

* {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}

/* Accessibility - Skip Link */
.skip-link {
	position: absolute;
	top: -100px;
	left: 0;
	background: var(--primary-color);
	color: white;
	padding: 0.75rem 1.25rem;
	text-decoration: none;
	border-radius: 0 0 var(--radius-sm) 0;
	z-index: 10000;
	font-weight: 600;
	transition: top var(--transition);
}

.skip-link:focus {
	top: 0;
}

/* Visually Hidden (but accessible to screen readers) */
.visually-hidden {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

body {
	font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen-Sans, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
	line-height: 1.6;
	color: var(--text-color);
	background-color: var(--body-bg);
	padding: 0;
	margin: 0;
	min-height: 100vh;
	display: flex;
	flex-direction: column;
}

/* Header */
header {
	background: var(--secondary-color);
	box-shadow: var(--shadow-sm);
	border-bottom: 1px solid var(--border-color);
	position: sticky;
	top: 0;
	z-index: 1000;
}

.header-wrapper {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 1rem 2rem;
	max-width: 1600px;
	margin: 0 auto;
}

h1 {
	font-weight: 600;
	font-size: 1.5rem;
	color: var(--text-color);
	display: flex;
	align-items: center;
	gap: 0.5rem;
}

/* Main Content */
main {
	flex: 1;
	max-width: 1600px;
	width: 100%;
	margin: 0 auto;
	padding: 1.5rem 2rem;
}

/* Filters Section */
.filters-section {
	margin-bottom: 1.5rem;
}

.filters-toggle {
	display: none; /* Hidden on desktop */
	width: 100%;
	padding: 1rem 1.25rem;
	background: var(--secondary-color);
	border: 1px solid var(--border-color);
	border-radius: var(--radius);
	color: var(--text-color);
	font-size: 1rem;
	font-weight: 600;
	cursor: pointer;
	align-items: center;
	justify-content: space-between;
	margin-bottom: 0.75rem;
	transition: background-color var(--transition);
}

.filters-toggle:hover {
	background: var(--hover-color);
}

.filters-toggle-text {
	display: flex;
	align-items: center;
	gap: 0.5rem;
}

.filters-toggle .toggle-icon {
	transition: transform var(--transition);
}

.filters-toggle[aria-expanded='false'] .toggle-icon {
	transform: rotate(-90deg);
}

.filters {
	background: var(--secondary-color);
	padding: 1.25rem;
	border-radius: var(--radius);
	box-shadow: var(--shadow-sm);
	border: 1px solid var(--border-color);
	transition: max-height var(--transition), opacity var(--transition);
	overflow: hidden;
}

.filter-row {
	margin-bottom: 0.75rem;
}

.filter-row:last-child {
	margin-bottom: 0;
}

.filter-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
	gap: 0.75rem;
}

.filter-item {
	display: flex;
	flex-direction: column;
}

.filters input[type='search'],
.filters select {
	width: 100%;
	padding: 0.7rem 0.9rem;
	border: 1px solid var(--border-color);
	border-radius: var(--radius-sm);
	font-size: 0.95rem;
	background-color: var(--body-bg);
	color: var(--text-color);
	transition: border-color var(--transition), box-shadow var(--transition);
}

.filters input[type='search']:focus,
.filters select:focus {
	outline: none;
	border-color: var(--primary-color);
	box-shadow: 0 0 0 3px rgba(246, 130, 31, 0.35);
}

.filters select {
	appearance: none;
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236c757d' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
	background-repeat: no-repeat;
	background-position: right 0.7rem center;
	background-size: 1em;
	padding-right: 2.5rem;
	cursor: pointer;
}

.btn-reset {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 0.5rem;
	padding: 0.7rem 1rem;
	font-size: 0.95rem;
	background: var(--hover-color);
	border: 1px solid var(--border-color);
	border-radius: var(--radius-sm);
	cursor: pointer;
	color: var(--text-color);
	font-weight: 500;
	transition: all var(--transition);
	white-space: nowrap;
}

.btn-reset:hover {
	background: var(--border-color);
	border-color: var(--text-light);
}

.btn-reset svg {
	flex-shrink: 0;
}

/* Results Bar */
.results-bar {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 0.75rem 1rem;
	background: var(--secondary-color);
	border-radius: var(--radius);
	margin-bottom: 1rem;
	font-size: 0.9rem;
	color: var(--text-light);
	border: 1px solid var(--border-color);
}

.results-count {
	font-weight: 500;
}

/* Table Container */
.table-container {
	overflow: auto;
	background: var(--secondary-color);
	border-radius: var(--radius);
	box-shadow: var(--shadow-md);
	border: 1px solid var(--border-color);
	max-height: calc(100vh - 280px);
	position: relative;
}

/* Larger table for bigger screens */
@media (min-width: 1440px) {
	.table-container {
		max-height: calc(100vh - 260px);
	}
}

@media (min-width: 1920px) {
	.table-container {
		max-height: calc(100vh - 240px);
	}
}

.table-container:focus {
	outline: 2px solid var(--primary-color);
	outline-offset: 2px;
}

table {
	width: 100%;
	border-collapse: separate;
	border-spacing: 0;
	font-size: 0.9rem;
}

/* Sticky Header */
thead {
	background: var(--header-bg);
	position: sticky;
	top: 0;
	z-index: 10;
}

thead th {
	background: var(--header-bg);
	position: sticky;
	top: 0;
	z-index: 10;
	border-bottom: 2px solid var(--border-color);
}

thead th:first-child {
	z-index: 11;
}

th,
td {
	padding: 1rem;
	text-align: left;
	border-bottom: 1px solid var(--border-color);
}

th {
	font-weight: 600;
	color: var(--text-color);
	white-space: nowrap;
	font-size: 0.85rem;
	text-transform: uppercase;
	letter-spacing: 0.025em;
}

/* Zebra Striping */
tbody tr:nth-child(even) {
	background-color: var(--table-stripe);
}

tbody tr:nth-child(odd) {
	background-color: var(--table-odd);
}

tbody tr {
	transition: background-color var(--transition);
}

tbody tr:hover {
	background-color: var(--table-hover);
}

/* Sticky First Column */
th:first-child,
td:first-child {
	position: sticky;
	left: 0;
	z-index: 2;
	box-shadow: 2px 0 5px -2px rgba(0, 0, 0, 0.1);
}

thead th:first-child {
	background-color: var(--header-bg);
}

tbody tr:nth-child(odd) td:first-child {
	background-color: var(--table-odd);
}

tbody tr:nth-child(even) td:first-child {
	background-color: var(--table-stripe);
}

tbody tr:hover td:first-child {
	background-color: var(--table-hover);
}

/* Column Widths */
th:nth-child(1),
td:nth-child(1) {
	min-width: 220px;
	max-width: 320px;
} /* Title */
th:nth-child(2),
td:nth-child(2) {
	min-width: 130px;
} /* Category */
th:nth-child(3),
td:nth-child(3) {
	min-width: 110px;
} /* Domain */
th:nth-child(4),
td:nth-child(4) {
	min-width: 120px;
} /* Level */
th:nth-child(5),
td:nth-child(5) {
	min-width: 90px;
} /* Impact */
th:nth-child(6),
td:nth-child(6) {
	min-width: 100px;
} /* Difficulty */
th:nth-child(7),
td:nth-child(7) {
	min-width: 300px;
	max-width: 500px;
} /* Description */
th:nth-child(8),
td:nth-child(8) {
	min-width: 180px;
	max-width: 300px;
} /* Prerequisites */
th:nth-child(9),
td:nth-child(9) {
	min-width: 160px;
} /* Feature */
th:nth-child(10),
td:nth-child(10) {
	min-width: 250px;
	max-width: 400px;
} /* Config */
th:nth-child(11),
td:nth-child(11) {
	min-width: 120px;
} /* Source */
th:nth-child(12),
td:nth-child(12) {
	min-width: 250px;
	max-width: 400px;
} /* Notes */

/* Text Wrapping */
td:nth-child(7),
td:nth-child(8),
td:nth-child(10),
td:nth-child(12) {
	word-wrap: break-word;
	overflow-wrap: break-word;
	hyphens: auto;
}

/* Code Blocks */
td code {
	display: block;
	white-space: pre-wrap;
	word-break: break-word;
	background-color: var(--code-bg);
	padding: 0.6em 0.8em;
	border-radius: var(--radius-sm);
	font-size: 0.85em;
	font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
	border: 1px solid var(--code-border);
	margin: 0.3em 0;
	max-height: 200px;
	overflow-y: auto;
	line-height: 1.5;
}

td code::-webkit-scrollbar {
	width: 6px;
	height: 6px;
}

td code::-webkit-scrollbar-track {
	background: var(--body-bg);
	border-radius: 3px;
}

td code::-webkit-scrollbar-thumb {
	background: var(--border-color);
	border-radius: 3px;
}

td code::-webkit-scrollbar-thumb:hover {
	background: var(--text-light);
}

/* Links */
a {
	color: var(--primary-color);
	text-decoration: none;
	font-weight: 500;
	transition: color var(--transition);
}

a:hover {
	color: var(--primary-hover);
	text-decoration: underline;
}

a:focus {
	outline: 2px solid var(--primary-color);
	outline-offset: 2px;
	border-radius: 2px;
}

/* Loading State */
.loading-state {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	padding: 3rem 1rem;
	color: var(--text-light);
}

.spinner {
	width: 40px;
	height: 40px;
	border: 4px solid var(--border-color);
	border-top-color: var(--primary-color);
	border-radius: 50%;
	animation: spin 0.8s linear infinite;
	margin-bottom: 1rem;
}

@keyframes spin {
	to {
		transform: rotate(360deg);
	}
}

/* Empty State */
.empty-state {
	text-align: center;
	padding: 3rem 1rem;
	color: var(--text-light);
}

.empty-state svg {
	width: 64px;
	height: 64px;
	margin-bottom: 1rem;
	opacity: 0.5;
}

/* Error Message */
.error-message {
	background-color: #fee2e2;
	color: #991b1b;
	padding: 1rem 1.25rem;
	border-radius: var(--radius);
	margin-top: 1rem;
	border-left: 4px solid #ef4444;
	animation: slideIn 0.3s ease-out;
}

[data-theme='dark'] .error-message {
	background-color: #7f1d1d;
	color: #fecaca;
}

@keyframes slideIn {
	from {
		opacity: 0;
		transform: translateY(-10px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

/* Back to Top Button */
.back-to-top {
	position: fixed;
	bottom: 2rem;
	right: 2rem;
	width: 48px;
	height: 48px;
	background: var(--primary-color);
	color: white;
	border: none;
	border-radius: 50%;
	cursor: pointer;
	display: none;
	align-items: center;
	justify-content: center;
	box-shadow: var(--shadow-lg);
	transition: all var(--transition);
	z-index: 999;
	opacity: 0;
}

.back-to-top:hover {
	background: var(--primary-hover);
	transform: translateY(-2px);
}

.back-to-top:focus {
	outline: 2px solid var(--primary-color);
	outline-offset: 2px;
}

.back-to-top.visible {
	display: flex;
	opacity: 1;
}

/* Theme Switch */
.theme-switch {
	position: relative;
	width: 44px;
	height: 44px;
	background: transparent;
	border: 1px solid var(--border-color);
	cursor: pointer;
	padding: 10px;
	border-radius: 50%;
	color: var(--text-color);
	transition: all var(--transition);
	display: flex;
	align-items: center;
	justify-content: center;
}

.theme-switch:hover {
	background-color: var(--hover-color);
	border-color: var(--text-light);
}

.theme-switch:focus {
	outline: 2px solid var(--primary-color);
	outline-offset: 2px;
}

.theme-switch svg {
	display: block;
}

/* Footer */
footer {
	text-align: center;
	padding: 2rem 1.5rem;
	color: var(--text-light);
	font-size: 0.9rem;
	border-top: 1px solid var(--border-color);
	margin-top: 3rem;
	background: var(--secondary-color);
}

footer p + p {
	margin-top: 0.5rem;
}

/* Animations */
.fade-in {
	animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
	from {
		opacity: 0;
	}
	to {
		opacity: 1;
	}
}

/* Responsive Design */

/* Large Tablets (1024px and below) */
@media (max-width: 1024px) {
	.header-wrapper {
		padding: 1rem 1.5rem;
	}

	main {
		padding: 1.25rem 1.5rem;
	}

	.filter-grid {
		grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
	}

	table {
		font-size: 0.85rem;
	}

	th,
	td {
		padding: 0.75rem 0.9rem;
	}
}

/* Tablets (768px and below) */
@media (max-width: 768px) {
	.header-wrapper {
		padding: 0.875rem 1rem;
	}

	h1 {
		font-size: 1.25rem;
	}

	main {
		padding: 1rem;
	}

	/* Show collapsible filters */
	.filters-toggle {
		display: flex;
	}

	.filters {
		transition: max-height 0.3s ease-out, opacity 0.3s ease-out, padding 0.3s ease-out;
	}

	.filters.collapsed {
		max-height: 0;
		opacity: 0;
		padding: 0 1.25rem;
		margin-top: -0.75rem;
		border: none;
	}

	.filter-grid {
		grid-template-columns: 1fr;
	}

	.btn-reset span {
		display: none;
	}

	.btn-reset {
		width: 100%;
	}

	.results-bar {
		font-size: 0.85rem;
		padding: 0.625rem 0.875rem;
	}

	.table-container {
		margin: 0 -1rem;
		border-radius: 0;
		border-left: none;
		border-right: none;
		max-height: calc(100vh - 400px);
	}

	table {
		font-size: 0.8rem;
	}

	th,
	td {
		padding: 0.625rem 0.75rem;
	}

	th:nth-child(1),
	td:nth-child(1) {
		min-width: 180px;
	}
	th:nth-child(7),
	td:nth-child(7) {
		min-width: 250px;
	}

	.back-to-top {
		bottom: 1rem;
		right: 1rem;
		width: 44px;
		height: 44px;
	}
}

/* Small Mobile (480px and below) */
@media (max-width: 480px) {
	.header-wrapper {
		padding: 0.75rem 0.875rem;
	}

	h1 {
		font-size: 1.1rem;
	}

	.filters {
		padding: 0.875rem;
	}

	.filter-row {
		margin-bottom: 0.625rem;
	}

	.filter-grid {
		gap: 0.625rem;
	}

	.filters input[type='search'],
	.filters select {
		padding: 0.6rem 0.75rem;
		font-size: 0.9rem;
	}

	th,
	td {
		padding: 0.5rem 0.625rem;
	}

	th {
		font-size: 0.75rem;
	}

	td code {
		font-size: 0.8em;
		padding: 0.5em 0.6em;
	}

	.back-to-top {
		width: 40px;
		height: 40px;
	}
}

/* Print Styles */
@media print {
	.skip-link,
	header,
	.filters-section,
	.results-bar,
	.back-to-top,
	.error-message {
		display: none !important;
	}

	.table-container {
		max-height: none;
		overflow: visible;
		box-shadow: none;
		border: none;
	}

	tbody tr:hover {
		background-color: transparent;
	}

	th:first-child,
	td:first-child {
		position: static;
		box-shadow: none;
	}
}