/* 3310 Squadron — the game's four-tone phosphor ramp, and nothing else.
   Same rule as lib/game/palette.dart: every colour on this site is one of
   these four values. No gradients, no in-between tones. */

:root {
	--bg: #0b140b;
	--dim: #1f3d1f;
	--mid: #4fa84f;
	--bright: #8cff8c;

	--mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
		"DejaVu Sans Mono", monospace;
	--measure: 68ch;
	--page: 72rem;
}

*,
*::before,
*::after {
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
	html {
		scroll-behavior: auto;
	}
	* {
		animation: none !important;
		transition: none !important;
	}
}

body {
	margin: 0;
	background: var(--bg);
	color: var(--mid);
	font-family: var(--mono);
	font-size: 1rem;
	line-height: 1.7;
	-webkit-font-smoothing: antialiased;
	text-rendering: optimizeLegibility;
}

/* Type ------------------------------------------------------------------ */

h1,
h2,
h3 {
	color: var(--bright);
	line-height: 1.15;
	letter-spacing: 0.02em;
	margin: 0 0 0.6em;
	text-wrap: balance;
}

h1 {
	font-size: clamp(2rem, 7vw, 3.75rem);
	letter-spacing: 0.06em;
}

h2 {
	font-size: clamp(1.25rem, 3.4vw, 1.65rem);
	text-transform: uppercase;
	letter-spacing: 0.14em;
}

h3 {
	font-size: 1rem;
	letter-spacing: 0.08em;
	text-transform: uppercase;
}

p {
	margin: 0 0 1.1em;
	max-width: var(--measure);
	text-wrap: pretty;
}

strong {
	color: var(--bright);
	font-weight: 700;
}

a {
	color: var(--bright);
	text-underline-offset: 0.25em;
	text-decoration-thickness: 1px;
}

a:hover,
a:focus-visible {
	background: var(--dim);
}

:focus-visible {
	outline: 2px solid var(--bright);
	outline-offset: 3px;
}

code {
	color: var(--bright);
	word-break: break-word;
}

hr {
	border: 0;
	border-top: 1px solid var(--dim);
	margin: 3rem 0;
}

/* Layout ---------------------------------------------------------------- */

.wrap {
	width: 100%;
	max-width: var(--page);
	margin-inline: auto;
	padding-inline: clamp(1.25rem, 5vw, 3rem);
}

.skip {
	position: absolute;
	left: -9999px;
	top: 0;
	background: var(--bg);
	color: var(--bright);
	padding: 0.75rem 1rem;
	border: 1px solid var(--bright);
	z-index: 10;
}

.skip:focus {
	left: 0.5rem;
	top: 0.5rem;
}

section {
	padding-block: clamp(2.5rem, 7vw, 4.5rem);
	border-top: 1px solid var(--dim);
}

/* Header ---------------------------------------------------------------- */

.site-head {
	position: sticky;
	top: 0;
	z-index: 5;
	background: var(--bg);
	border-bottom: 1px solid var(--dim);
}

.site-head .wrap {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem 1.5rem;
	align-items: center;
	justify-content: space-between;
	padding-block: 0.9rem;
}

.brand {
	display: inline-flex;
	align-items: center;
	gap: 0.6rem;
	color: var(--bright);
	text-decoration: none;
	font-weight: 700;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	font-size: 0.9rem;
}

.brand:hover,
.brand:focus-visible {
	background: none;
	text-decoration: underline;
}

.brand img {
	width: 26px;
	height: 26px;
	image-rendering: pixelated;
	display: block;
}

.site-nav {
	display: flex;
	gap: clamp(0.9rem, 3vw, 1.75rem);
	font-size: 0.85rem;
	letter-spacing: 0.1em;
	text-transform: uppercase;
}

.site-nav a {
	color: var(--mid);
	text-decoration: none;
	padding-bottom: 2px;
	border-bottom: 1px solid transparent;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a[aria-current="page"] {
	color: var(--bright);
	background: none;
	border-bottom-color: var(--bright);
}

/* Hero ------------------------------------------------------------------ */

.hero {
	border-top: 0;
	padding-block: clamp(3rem, 10vw, 6rem);
}

.hero .kicker {
	color: var(--mid);
	text-transform: uppercase;
	letter-spacing: 0.22em;
	font-size: 0.78rem;
	margin-bottom: 1.25rem;
}

.hero .lede {
	font-size: clamp(1.05rem, 2.4vw, 1.2rem);
	color: var(--mid);
}

.hero .lede strong {
	display: block;
	font-size: clamp(1.3rem, 3.4vw, 1.75rem);
	color: var(--bright);
	letter-spacing: 0.04em;
	margin-bottom: 0.6rem;
}

.hero-art {
	width: 100%;
	max-width: 100%;
	height: auto;
	margin-top: 2.5rem;
	border: 1px solid var(--dim);
	image-rendering: pixelated;
	display: block;
}

/* Call to action -------------------------------------------------------- */

.cta {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 1rem 1.5rem;
	margin-top: 2rem;
}

.badge {
	display: inline-flex;
	flex-direction: column;
	gap: 0.15rem;
	border: 1px solid var(--mid);
	color: var(--mid);
	padding: 0.7rem 1.4rem;
	text-transform: uppercase;
	letter-spacing: 0.12em;
	font-size: 0.8rem;
	line-height: 1.4;
}

.badge strong {
	color: var(--bright);
	font-size: 0.95rem;
	letter-spacing: 0.08em;
}

.cta .meta {
	margin: 0;
	font-size: 0.82rem;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: var(--dim);
}

/* Screenshots ----------------------------------------------------------- */

.shots {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr));
	gap: 1.25rem;
	margin: 0;
	padding: 0;
}

.shots figure {
	margin: 0;
}

.shots img {
	width: 100%;
	height: auto;
	display: block;
	border: 1px solid var(--dim);
	image-rendering: pixelated;
	background: var(--bg);
}

.shots figcaption {
	margin-top: 0.6rem;
	font-size: 0.8rem;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--dim);
}

/* Feature grid ---------------------------------------------------------- */

.grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr));
	gap: 1.25rem;
	list-style: none;
	margin: 0;
	padding: 0;
}

.grid li {
	border: 1px solid var(--dim);
	padding: 1.25rem 1.35rem;
}

.grid h3 {
	margin-bottom: 0.4rem;
}

.grid p {
	margin: 0;
	font-size: 0.95rem;
}

/* Changelog ------------------------------------------------------------- */

.releases {
	list-style: none;
	margin: 0;
	padding: 0;
}

.release {
	border-top: 1px solid var(--dim);
	padding-block: 1.75rem;
	display: grid;
	grid-template-columns: minmax(9rem, 12rem) 1fr;
	gap: 0.5rem 2rem;
}

.release:first-child {
	border-top: 0;
	padding-top: 0;
}

@media (max-width: 46rem) {
	.release {
		grid-template-columns: 1fr;
		gap: 0.75rem;
	}
}

.release h3 {
	margin: 0;
	font-size: 1.05rem;
	letter-spacing: 0.1em;
}

.release .when {
	display: block;
	margin-top: 0.35rem;
	font-size: 0.78rem;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--dim);
	font-weight: 400;
}

.release ul {
	margin: 0;
	padding-left: 1.1rem;
}

.release li {
	margin-bottom: 0.35rem;
	max-width: var(--measure);
}

.release li::marker {
	color: var(--dim);
}

/* Long-form prose (privacy) --------------------------------------------- */

.prose h2 {
	margin-top: 2.75rem;
}

.prose h2:first-of-type {
	margin-top: 1.5rem;
}

.prose ul {
	max-width: var(--measure);
	padding-left: 1.1rem;
	margin: 0 0 1.1em;
}

.prose li {
	margin-bottom: 0.4rem;
}

.prose li::marker {
	color: var(--dim);
}

.doc-meta {
	list-style: none;
	margin: 0 0 2rem;
	padding: 1rem 1.25rem;
	border: 1px solid var(--dim);
	max-width: var(--measure);
	font-size: 0.9rem;
}

.doc-meta li {
	margin: 0;
}

.doc-meta span {
	color: var(--dim);
	text-transform: uppercase;
	letter-spacing: 0.1em;
	font-size: 0.78rem;
	margin-right: 0.6rem;
}

/* Footer ---------------------------------------------------------------- */

.site-foot {
	border-top: 1px solid var(--dim);
	padding-block: 2.5rem 3.5rem;
	font-size: 0.85rem;
}

.site-foot nav {
	display: flex;
	flex-wrap: wrap;
	gap: 0.75rem 1.75rem;
	margin-bottom: 1.25rem;
	text-transform: uppercase;
	letter-spacing: 0.1em;
}

.site-foot p {
	color: var(--dim);
	margin-bottom: 0.5rem;
	max-width: var(--measure);
}

/* 404 ------------------------------------------------------------------- */

.centered {
	min-height: 60vh;
	display: flex;
	flex-direction: column;
	justify-content: center;
	border-top: 0;
}