/* ==========================================================================
   Minesweeper.si - Site stylesheet
   --------------------------------------------------------------------------
   Consumes the design tokens declared in ___root.css.
   No literal colors are used here except inside icon data URIs, which are
   intentionally monochrome and get tinted through CSS masks.
   ========================================================================== */

/* ==========================================================================
   1. Reset and base
   ========================================================================== */
*,
*::before,
*::after {
	box-sizing: border-box;
}

html {
	-webkit-text-size-adjust: 100%;
	scroll-behavior: smooth;
}

body {
	margin: 0;
	background: var(--bg-base);
	color: var(--text-primary);
	font-family: var(--font-family-ui);
	font-size: var(--font-size-m);
	line-height: 1.6;
	-webkit-font-smoothing: antialiased;
	-webkit-tap-highlight-color: var(--tap-highlight-color);
}

h1, h2, h3, h4 {
	margin: 0 0 var(--space-m);
	font-family: var(--font-display);
	line-height: 1.25;
	color: var(--text-primary);
	letter-spacing: -0.01em;
}

p {
	margin: 0 0 var(--space-l);
}

a {
	color: var(--color-primary);
	text-decoration: none;
}

a:hover {
	text-decoration: underline;
}

img, svg {
	max-width: 100%;
}

ul, ol {
	padding-left: 1.25em;
}

hr {
	border: 0;
	border-top: 1px solid var(--border-subtle);
	margin: var(--space-x) 0;
}

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

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

/* ==========================================================================
   2. Layout primitives
   ========================================================================== */
.container {
	width: 100%;
	max-width: var(--container-w);
	margin: 0 auto;
	padding: 0 var(--space-l);
}

.section {
	padding: var(--space-x) 0;
}

.section--tight {
	padding: var(--space-l) 0;
}

.stack > * + * {
	margin-top: var(--space-l);
}

.skip-link {
	position: absolute;
	left: -9999px;
	top: 0;
	z-index: 100;
	padding: var(--space-m) var(--space-l);
	background: var(--color-primary);
	color: var(--color-primary-contrast);
	border-radius: 0 0 var(--radius-m) 0;
}

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

/* ==========================================================================
   3. Header
   ========================================================================== */
.site-header {
	position: sticky;
	top: 0;
	z-index: 40;
	background: color-mix(in srgb, var(--bg-base) 88%, transparent);
	-webkit-backdrop-filter: saturate(180%) blur(12px);
	backdrop-filter: saturate(180%) blur(12px);
	border-bottom: 1px solid var(--border-subtle);
}

/* Fallback for browsers without color-mix(): keep the header opaque */
@supports not (background: color-mix(in srgb, white 50%, black)) {
	.site-header {
		background: var(--bg-base);
	}
}

.header-inner {
	display: flex;
	align-items: center;
	gap: var(--space-l);
	min-height: var(--header-h);
}

.brand {
	display: inline-flex;
	align-items: center;
	gap: var(--space-m);
	flex: 0 0 auto;
	color: var(--text-primary);
	font-family: var(--font-display);
	font-size: var(--font-size-b);
	font-weight: 800;
	letter-spacing: -0.02em;
}

.brand:hover {
	text-decoration: none;
}

.brand-mark {
	display: grid;
	place-items: center;
	width: 34px;
	height: 34px;
	border-radius: var(--radius-s);
	background: var(--color-primary);
	color: var(--color-primary-contrast);
}

.brand-mark img {
	width: 34px;
	height: 34px;
}

.brand-text em {
	font-style: normal;
	color: var(--color-primary);
}

.main-nav {
	margin-inline-start: auto;
}

.main-nav ul {
	display: flex;
	align-items: center;
	gap: 2px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.main-nav a {
	display: block;
	padding: 8px 12px;
	border-radius: var(--radius-s);
	color: var(--text-secondary);
	font-size: var(--font-size-s);
	font-weight: 600;
	white-space: nowrap;
	transition: color var(--transition-fast), background var(--transition-fast);
}

.main-nav a:hover {
	color: var(--text-primary);
	background: var(--bg-trans-hover);
	text-decoration: none;
}

.main-nav a[aria-current="page"] {
	color: var(--color-primary);
	background: var(--color-primary-light);
}

.header-actions {
	display: flex;
	align-items: center;
	gap: var(--space-s);
	flex: 0 0 auto;
}

/* --- Icon button (theme toggle, mobile nav toggle) --- */
.icon-btn {
	display: grid;
	place-items: center;
	width: 38px;
	height: 38px;
	padding: 0;
	border: 1px solid var(--border-default);
	border-radius: var(--radius-s);
	background: var(--bg-base);
	color: var(--text-secondary);
	cursor: pointer;
	transition: color var(--transition-fast), border-color var(--transition-fast),
		background var(--transition-fast);
}

.icon-btn:hover {
	color: var(--color-primary);
	border-color: var(--color-primary);
	background: var(--color-primary-light);
}

.icon-btn svg {
	width: 18px;
	height: 18px;
}

/* --- Theme toggle: swap the sun / moon glyphs from the theme attribute --- */
.theme-toggle .icon-moon {
	display: none;
}

[data-theme="dark"] .theme-toggle .icon-sun {
	display: none;
}

[data-theme="dark"] .theme-toggle .icon-moon {
	display: block;
}

/* --- Language dropdown (built on <details> so it works without JS) --- */
.lang-switch {
	position: relative;
}

.lang-switch > summary {
	display: flex;
	align-items: center;
	gap: 6px;
	height: 38px;
	padding: 0 var(--space-m);
	border: 1px solid var(--border-default);
	border-radius: var(--radius-s);
	background: var(--bg-base);
	color: var(--text-secondary);
	font-size: var(--font-size-s);
	font-weight: 600;
	cursor: pointer;
	list-style: none;
	transition: color var(--transition-fast), border-color var(--transition-fast),
		background var(--transition-fast);
}

.lang-switch > summary::-webkit-details-marker {
	display: none;
}

.lang-switch > summary:hover,
.lang-switch[open] > summary {
	color: var(--color-primary);
	border-color: var(--color-primary);
	background: var(--color-primary-light);
}

.lang-switch summary svg {
	width: 16px;
	height: 16px;
}

.lang-switch .caret {
	width: 12px;
	height: 12px;
	transition: transform var(--transition-fast);
}

.lang-switch[open] .caret {
	transform: rotate(180deg);
}

.lang-menu {
	position: absolute;
	top: calc(100% + 6px);
	inset-inline-end: 0;
	min-width: 168px;
	margin: 0;
	padding: var(--space-s);
	list-style: none;
	background: var(--bg-base);
	border: 1px solid var(--border-default);
	border-radius: var(--radius-m);
	box-shadow: var(--shadow-drop);
}

.lang-menu a {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-m);
	padding: 8px 10px;
	border-radius: var(--radius-s);
	color: var(--text-secondary);
	font-size: var(--font-size-s);
	font-weight: 600;
}

.lang-menu a:hover {
	background: var(--bg-trans-hover);
	color: var(--text-primary);
	text-decoration: none;
}

.lang-menu a[aria-current="true"] {
	color: var(--color-primary);
	background: var(--color-primary-light);
}

.lang-menu .lang-code {
	font-size: var(--font-size-t);
	color: var(--text-tertiary);
	text-transform: uppercase;
	letter-spacing: 0.06em;
}

/* --- Mobile navigation toggle --- */
.nav-toggle {
	display: none;
}

/* ==========================================================================
   4. Page hero and prose
   ========================================================================== */
.page-hero {
	padding: var(--space-x) 0 var(--space-l);
	border-bottom: 1px solid var(--border-subtle);
	background: linear-gradient(180deg, var(--color-primary-light) 0%,
		var(--bg-base) 100%);
}

.page-hero .breadcrumb {
	margin: 0 0 var(--space-m);
	padding: 0;
	list-style: none;
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
	font-size: var(--font-size-s);
	color: var(--text-tertiary);
}

.page-hero .breadcrumb a {
	color: var(--text-secondary);
}

.page-hero h1 {
	font-size: clamp(var(--font-size-h), 4vw, 34px);
	margin-bottom: var(--space-m);
}

.page-hero .lede {
	max-width: 68ch;
	margin: 0;
	color: var(--text-secondary);
	font-size: var(--font-size-b);
}

.prose {
	max-width: 76ch;
}

.prose h2 {
	margin: var(--space-x) 0 var(--space-m);
	font-size: var(--font-size-h);
}

.prose h3 {
	margin: var(--space-l) 0 var(--space-m);
	font-size: var(--font-size-l);
}

.prose h2:first-child,
.prose h3:first-child {
	margin-top: 0;
}

.prose p,
.prose li {
	color: var(--text-secondary);
	line-height: 1.8;
}

.prose li + li {
	margin-top: 6px;
}

.prose strong {
	color: var(--text-primary);
}

.prose > :last-child {
	margin-bottom: 0;
}

/* ==========================================================================
   5. Buttons and badges
   ========================================================================== */
.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	padding: 11px 20px;
	border: 1px solid transparent;
	border-radius: var(--radius-s);
	background: var(--color-primary);
	color: var(--color-primary-contrast);
	font-family: var(--font-family-ui);
	font-size: var(--font-size-s);
	font-weight: 700;
	line-height: 1.2;
	cursor: pointer;
	transition: background var(--transition-fast), color var(--transition-fast),
		border-color var(--transition-fast), transform var(--transition-fast);
}

.btn:hover {
	background: var(--color-primary-hover);
	text-decoration: none;
}

.btn:active {
	transform: translateY(1px);
}

.btn--ghost {
	background: var(--bg-base);
	border-color: var(--border-default);
	color: var(--text-primary);
}

.btn--ghost:hover {
	background: var(--color-primary-light);
	border-color: var(--color-primary);
	color: var(--color-primary);
}

.btn--sm {
	padding: 8px 14px;
	font-size: var(--font-size-t);
}

.btn svg {
	width: 16px;
	height: 16px;
}

.badge {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	padding: 4px 10px;
	border-radius: var(--radius-full);
	background: var(--color-primary-light);
	color: var(--color-primary);
	font-size: var(--font-size-t);
	font-weight: 700;
	letter-spacing: 0.02em;
	text-transform: uppercase;
}

/* ==========================================================================
   6. Cards and grids
   ========================================================================== */
.card {
	padding: var(--space-l);
	background: var(--bg-base);
	border: 1px solid var(--border-subtle);
	border-radius: var(--radius-m);
	box-shadow: var(--shadow-card);
}

.card h3 {
	font-size: var(--font-size-l);
	margin-bottom: var(--space-s);
}

.card p:last-child {
	margin-bottom: 0;
}

.grid {
	display: grid;
	gap: var(--space-l);
}

.grid--2 {
	grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid--3 {
	grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid--4 {
	grid-template-columns: repeat(4, minmax(0, 1fr));
}

/* --- Blog / article list --- */
.post-list {
	display: grid;
	gap: var(--space-l);
	margin: 0;
	padding: 0;
	list-style: none;
}

.post-list--grid {
	grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.post-card {
	display: flex;
	flex-direction: column;
	gap: var(--space-m);
	padding: var(--space-l);
	background: var(--bg-base);
	border: 1px solid var(--border-subtle);
	border-radius: var(--radius-m);
	box-shadow: var(--shadow-card);
	transition: border-color var(--transition-base),
		transform var(--transition-base);
}

.post-card:hover {
	border-color: var(--color-primary);
	transform: translateY(-2px);
}

.post-card h3 {
	margin: 0;
	font-size: var(--font-size-l);
}

.post-card h3 a {
	color: var(--text-primary);
}

.post-card h3 a:hover {
	color: var(--color-primary);
	text-decoration: none;
}

.post-card p {
	margin: 0;
	color: var(--text-secondary);
	font-size: var(--font-size-s);
}

.post-card .post-meta {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: var(--space-m);
	margin-top: auto;
	color: var(--text-tertiary);
	font-size: var(--font-size-t);
	text-transform: uppercase;
	letter-spacing: 0.06em;
}

/* ==========================================================================
   7. Tables
   ========================================================================== */
.table-wrap {
	overflow-x: auto;
	border: 1px solid var(--border-subtle);
	border-radius: var(--radius-m);
}

table {
	width: 100%;
	border-collapse: collapse;
	font-size: var(--font-size-s);
}

caption {
	padding: var(--space-m);
	color: var(--text-tertiary);
	font-size: var(--font-size-t);
	text-align: left;
}

th, td {
	padding: 12px var(--space-l);
	text-align: left;
	border-bottom: 1px solid var(--border-subtle);
}

thead th {
	background: var(--bg-elevated);
	color: var(--text-primary);
	font-weight: 700;
	white-space: nowrap;
}

tbody tr:last-child th,
tbody tr:last-child td {
	border-bottom: 0;
}

tbody tr:hover {
	background: var(--bg-trans-hover);
}

td.num, th.num {
	text-align: right;
	font-variant-numeric: tabular-nums;
}

/* ==========================================================================
   8. FAQ accordion (<details> based, keyboard accessible by default)
   ========================================================================== */
.faq {
	display: grid;
	gap: var(--space-m);
	max-width: 80ch;
}

.faq details {
	border: 1px solid var(--border-subtle);
	border-radius: var(--radius-m);
	background: var(--bg-base);
	transition: border-color var(--transition-fast);
}

.faq details[open] {
	border-color: var(--color-primary);
}

.faq summary {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-m);
	padding: var(--space-l);
	color: var(--text-primary);
	font-family: var(--font-display);
	font-size: var(--font-size-b);
	font-weight: 700;
	cursor: pointer;
	list-style: none;
}

.faq summary::-webkit-details-marker {
	display: none;
}

.faq summary::after {
	content: "";
	flex: 0 0 auto;
	width: 12px;
	height: 12px;
	border-right: 2px solid var(--text-tertiary);
	border-bottom: 2px solid var(--text-tertiary);
	transform: rotate(45deg);
	transition: transform var(--transition-fast);
}

.faq details[open] summary::after {
	transform: rotate(-135deg);
}

.faq .faq-body {
	padding: 0 var(--space-l) var(--space-l);
	color: var(--text-secondary);
}

.faq .faq-body > :last-child {
	margin-bottom: 0;
}

/* ==========================================================================
   9. Game shell
   ========================================================================== */
.game-header {
	margin-bottom: var(--space-l);
}

.game-header h1 {
	margin-bottom: 6px;
	font-size: clamp(var(--font-size-h), 3.6vw, 32px);
}

.game-header p {
	max-width: 78ch;
	margin: 0;
	color: var(--text-secondary);
	font-size: var(--font-size-s);
}

.game-layout {
	display: grid;
	grid-template-columns: minmax(0, 1fr) 320px;
	gap: var(--space-l);
	align-items: start;
}

.game-panel {
	padding: var(--space-l);
	background: var(--bg-elevated);
	border: 1px solid var(--border-subtle);
	border-radius: var(--radius-md);
	box-shadow: var(--shadow-card);
}

/* --- HUD: mines left / restart face / timer --- */
.hud {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-m);
	margin-bottom: var(--space-l);
	padding: var(--space-m) var(--space-l);
	background: var(--bg-base);
	border: 1px solid var(--border-subtle);
	border-radius: var(--radius-m);
}

.hud-stat {
	display: flex;
	align-items: center;
	gap: 8px;
	min-width: 92px;
}

.hud-stat--end {
	justify-content: flex-end;
}

.hud-stat svg {
	width: 18px;
	height: 18px;
	flex: 0 0 auto;
	color: var(--text-tertiary);
}

.hud-value {
	font-family: var(--font-family-api);
	font-size: var(--font-size-l);
	font-weight: 700;
	font-variant-numeric: tabular-nums;
	color: var(--text-primary);
}

.face-btn {
	width: 46px;
	height: 46px;
	font-size: 24px;
	line-height: 1;
	border-radius: var(--radius-s);
	background: var(--bg-base);
	border: 1px solid var(--border-default);
	cursor: pointer;
	transition: background var(--transition-fast), border-color var(--transition-fast);
}

.face-btn:hover {
	background: var(--color-primary-light);
	border-color: var(--color-primary);
}

/* --- Board --- */
.board-wrap {
	overflow-x: auto;
	padding-bottom: 4px;
}

.board {
	display: grid;
	grid-template-columns: repeat(var(--cols, 9), var(--cell-size, 30px));
	gap: var(--board-gap);
	width: max-content;
	margin: 0 auto;
	padding: var(--board-pad);
	background: var(--board-bg);
	border-radius: var(--radius-m);
	box-shadow: var(--shadow-inset);
	touch-action: manipulation;
}

.cell {
	position: relative;
	display: grid;
	place-items: center;
	width: var(--cell-size, 30px);
	height: var(--cell-size, 30px);
	padding: 0;
	border: 0;
	border-radius: var(--cell-radius);
	background: var(--cell-face);
	box-shadow: inset 1px 1px 0 var(--cell-face-top),
		inset -1px -1px 0 var(--cell-face-bottom);
	color: transparent;
	font-family: var(--font-family-ui);
	font-size: calc(var(--cell-size, 30px) * 0.58);
	font-weight: 800;
	line-height: 1;
	cursor: pointer;
	user-select: none;
	-webkit-user-select: none;
	transition: background var(--transition-fast);
}

.cell:hover:not(.is-open) {
	background: var(--cell-face-hover);
}

.cell:active:not(.is-open) {
	background: var(--cell-face-active);
}

.cell.is-open {
	background: var(--cell-open);
	box-shadow: none;
	cursor: default;
}

.cell.is-flagged::after,
.cell.is-mine::after,
.cell.is-wrong::after {
	content: "";
	width: 66%;
	height: 66%;
	background: currentColor;
	-webkit-mask-position: center;
	mask-position: center;
	-webkit-mask-repeat: no-repeat;
	mask-repeat: no-repeat;
	-webkit-mask-size: contain;
	mask-size: contain;
}

.cell.is-flagged {
	color: var(--flag-color);
}

.cell.is-flagged::after {
	-webkit-mask-image: var(--icon-flag);
	mask-image: var(--icon-flag);
}

.cell.is-mine {
	color: var(--mine-color);
}

.cell.is-mine::after {
	-webkit-mask-image: var(--icon-mine);
	mask-image: var(--icon-mine);
}

.cell.is-hit {
	background: var(--mine-hit-bg);
}

.cell.is-wrong {
	background: var(--mine-wrong-bg);
	color: var(--text-tertiary);
}

.cell.is-wrong::after {
	-webkit-mask-image: var(--icon-mine-crossed);
	mask-image: var(--icon-mine-crossed);
}

/* Number colors follow the classic Minesweeper coding */
.cell.n1 { color: var(--num-1); }
.cell.n2 { color: var(--num-2); }
.cell.n3 { color: var(--num-3); }
.cell.n4 { color: var(--num-4); }
.cell.n5 { color: var(--num-5); }
.cell.n6 { color: var(--num-6); }
.cell.n7 { color: var(--num-7); }
.cell.n8 { color: var(--num-8); }

/* Revealed tiles animate in with a very short fade to give feedback */
.cell.is-open:not(.n0) {
	animation: cell-reveal var(--transition-base) both;
}

@keyframes cell-reveal {
	from { opacity: 0.4; }
	to { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
	.cell.is-open:not(.n0) {
		animation: none;
	}
}

/* --- Result banner --- */
.game-status {
	margin-top: var(--space-l);
	padding: var(--space-m) var(--space-l);
	border: 1px solid var(--border-subtle);
	border-radius: var(--radius-m);
	background: var(--bg-base);
	color: var(--text-secondary);
	font-size: var(--font-size-s);
	text-align: center;
}

.game-status.is-win {
	border-color: var(--color-success);
	background: var(--color-success-bg);
	color: var(--text-primary);
}

.game-status.is-loss {
	border-color: var(--color-danger);
	background: var(--color-danger-bg);
	color: var(--text-primary);
}

/* ==========================================================================
   10. Game side panel
   ========================================================================== */
.panel-title {
	margin: 0 0 var(--space-m);
	font-size: var(--font-size-s);
	font-weight: 800;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--text-tertiary);
}

.panel-block + .panel-block {
	margin-top: var(--space-l);
	padding-top: var(--space-l);
	border-top: 1px solid var(--border-subtle);
}

.level-list {
	display: grid;
	gap: 8px;
	margin: 0;
	padding: 0;
	list-style: none;
}

/* --- Difficulty / mode buttons --- */
.level-btn {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-m);
	width: 100%;
	padding: 11px 14px;
	border: 1px solid var(--border-default);
	border-radius: var(--radius-s);
	background: var(--bg-base);
	color: var(--text-primary);
	font-family: var(--font-family-ui);
	font-size: var(--font-size-s);
	font-weight: 700;
	text-align: start;
	cursor: pointer;
	transition: border-color var(--transition-fast), background var(--transition-fast),
		color var(--transition-fast);
}

.level-btn:hover {
	border-color: var(--color-primary);
}

.level-btn[aria-pressed="true"] {
	border-color: var(--color-primary);
	background: var(--color-primary-light);
	color: var(--color-primary);
}

.level-btn small {
	font-weight: 600;
	color: var(--text-tertiary);
	font-variant-numeric: tabular-nums;
}

.level-btn[aria-pressed="true"] small {
	color: inherit;
}

/* --- Custom board form --- */
.custom-form {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: var(--space-m);
}

.field {
	display: grid;
	gap: 6px;
}

.field label {
	font-size: var(--font-size-t);
	font-weight: 700;
	letter-spacing: 0.04em;
	text-transform: uppercase;
	color: var(--text-tertiary);
}

.field input {
	width: 100%;
	padding: 9px 10px;
	border: 1px solid var(--border-default);
	border-radius: var(--radius-s);
	background: var(--bg-base);
	color: var(--text-primary);
	font-family: var(--font-family-ui);
	font-size: var(--font-size-s);
	font-variant-numeric: tabular-nums;
}

.custom-form .btn {
	grid-column: 1 / -1;
}

/* --- Best times list --- */
.best-list {
	margin: 0;
	padding: 0;
	list-style: none;
	display: grid;
	gap: 6px;
	font-size: var(--font-size-s);
}

.best-list li {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-m);
	padding: 7px 0;
	border-bottom: 1px dashed var(--border-subtle);
	color: var(--text-secondary);
}

.best-list li:last-child {
	border-bottom: 0;
}

.best-list b {
	color: var(--text-primary);
	font-variant-numeric: tabular-nums;
}

/* --- Shortcut help --- */
.kbd-legend {
	margin: 0;
	padding: 0;
	list-style: none;
	display: grid;
	gap: 8px;
	font-size: var(--font-size-s);
	color: var(--text-secondary);
}

.kbd-legend li {
	display: flex;
	align-items: center;
	gap: 8px;
}

kbd {
	display: inline-block;
	min-width: 22px;
	padding: 2px 6px;
	border: 1px solid var(--border-default);
	border-bottom-width: 2px;
	border-radius: var(--radius-s);
	background: var(--bg-base);
	color: var(--text-primary);
	font-family: var(--font-family-api);
	font-size: var(--font-size-t);
	text-align: center;
}

.legend-note {
	margin: var(--space-m) 0 0;
	font-size: var(--font-size-t);
	color: var(--text-tertiary);
}

/* ==========================================================================
   11. Icon masks (monochrome SVG, tinted via background-color + mask)
   ========================================================================== */
:root {
	--icon-flag: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M7 22V3' stroke='%23000' stroke-width='2.6' stroke-linecap='round' fill='none'/%3E%3Cpath d='M7.8 4.2h9.4l-2.7 3.9 2.7 3.9H7.8z' fill='%23000'/%3E%3Cpath d='M4 22h7.5' stroke='%23000' stroke-width='2.6' stroke-linecap='round' fill='none'/%3E%3C/svg%3E");
	--icon-mine: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cg stroke='%23000' stroke-width='2.2' stroke-linecap='round' fill='none'%3E%3Cpath d='M12 1.5v4M12 18.5v4M1.5 12h4M18.5 12h4M4.6 4.6l2.8 2.8M16.6 16.6l2.8 2.8M19.4 4.6l-2.8 2.8M7.4 16.6l-2.8 2.8'/%3E%3C/g%3E%3Ccircle cx='12' cy='12' r='6' fill='%23000'/%3E%3C/svg%3E");
	--icon-mine-crossed: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cg stroke='%23000' stroke-width='2.2' stroke-linecap='round' fill='none'%3E%3Cpath d='M12 1.5v4M12 18.5v4M1.5 12h4M18.5 12h4M4.6 4.6l2.8 2.8M16.6 16.6l2.8 2.8M19.4 4.6l-2.8 2.8M7.4 16.6l-2.8 2.8'/%3E%3C/g%3E%3Ccircle cx='12' cy='12' r='6' fill='%23000'/%3E%3Cpath d='M3 3l18 18' stroke='%23000' stroke-width='3' stroke-linecap='round'/%3E%3C/svg%3E");
}

/* ==========================================================================
   12. Footer
   ========================================================================== */
.site-footer {
	margin-top: var(--space-x);
	padding: var(--space-x) 0 var(--space-l);
	background: var(--bg-elevated);
	border-top: 1px solid var(--border-subtle);
	color: var(--text-secondary);
	font-size: var(--font-size-s);
}

.footer-grid {
	display: grid;
	grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
	gap: var(--space-l);
}

.footer-brand .brand {
	font-size: var(--font-size-m);
	margin-bottom: var(--space-m);
}

.footer-brand p {
	max-width: 34ch;
	margin: 0;
	color: var(--text-tertiary);
	font-size: var(--font-size-s);
}

.footer-col h2 {
	margin: 0 0 var(--space-m);
	font-size: var(--font-size-t);
	font-weight: 800;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--text-tertiary);
}

.footer-col ul {
	margin: 0;
	padding: 0;
	list-style: none;
	display: grid;
	gap: 8px;
}

.footer-col a {
	color: var(--text-secondary);
}

.footer-col a:hover {
	color: var(--color-primary);
}

.footer-bottom {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-m);
	margin-top: var(--space-x);
	padding-top: var(--space-l);
	border-top: 1px solid var(--border-subtle);
	color: var(--text-tertiary);
	font-size: var(--font-size-t);
}

.footer-bottom p {
	margin: 0;
}

.footer-bottom nav ul {
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-l);
	margin: 0;
	padding: 0;
	list-style: none;
}

/* ==========================================================================
   13. Not-found page
   ========================================================================== */
.notfound {
	display: grid;
	place-items: center;
	min-height: 60vh;
	padding: var(--space-x) 0;
	text-align: center;
}

.notfound .code {
	font-family: var(--font-display);
	font-size: clamp(72px, 18vw, 140px);
	font-weight: 800;
	line-height: 1;
	color: var(--color-primary);
	opacity: 0.9;
}

.notfound h1 {
	margin-top: var(--space-l);
}

.notfound .lede {
	max-width: 52ch;
	margin: 0 auto var(--space-l);
	color: var(--text-secondary);
}

/* ==========================================================================
   14. Responsive
   ========================================================================== */
@media (max-width: 1080px) {
	.game-layout {
		grid-template-columns: minmax(0, 1fr);
	}

	.footer-grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media (max-width: 900px) {
	.grid--3,
	.grid--4 {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	/* Collapse the primary navigation into a slide-down panel */
	.nav-toggle {
		display: grid;
	}

	.main-nav {
		position: absolute;
		top: 100%;
		left: 0;
		right: 0;
		margin: 0;
		padding: var(--space-m);
		background: var(--bg-base);
		border-bottom: 1px solid var(--border-subtle);
		box-shadow: var(--shadow-drop);
		display: none;
	}

	.main-nav.is-open {
		display: block;
	}

	.main-nav ul {
		flex-direction: column;
		align-items: stretch;
		gap: 2px;
	}

	.main-nav a {
		padding: 12px;
		font-size: var(--font-size-m);
	}
}

@media (max-width: 640px) {
	:root {
		--space-x: 22px;
		--container-w: 100%;
	}

	.container {
		padding: 0 var(--space-l);
	}

	.grid--2,
	.grid--3,
	.grid--4 {
		grid-template-columns: minmax(0, 1fr);
	}

	.footer-grid {
		grid-template-columns: minmax(0, 1fr);
	}

	.brand-text {
		display: none;
	}

	.hud {
		padding: var(--space-m);
	}

	.hud-stat {
		min-width: 74px;
	}

	.hud-value {
		font-size: var(--font-size-b);
	}

	.custom-form {
		grid-template-columns: minmax(0, 1fr);
	}

	th, td {
		padding: 10px var(--space-m);
	}
}

/* ==========================================================================
   15. Print
   --------------------------------------------------------------------------
   Print always renders on paper, so the light theme is forced here instead of
   inheriting the visitor's dark mode choice.
   ========================================================================== */
@media print {
	.site-header,
	.site-footer,
	.theme-toggle,
	.lang-switch,
	.nav-toggle {
		display: none !important;
	}

	body {
		background: #ffffff;
		color: #000000;
	}
}