:root {
	--bg: oklch(0.97 0.008 85);
	--surface: oklch(1 0 0);
	--text: oklch(0.22 0.01 250);
	--muted: oklch(0.44 0.015 255);
	--border: oklch(0.9 0.008 85);
	--accent: oklch(0.52 0.12 235);
	--accent-hover: oklch(0.43 0.11 235);
	--focus: oklch(0.52 0.12 235);
	--brand-it: oklch(0.62 0.14 210);

	--btn-bg: oklch(0.24 0.02 255);
	--btn-bg-hover: oklch(0.44 0.11 245);
	--btn-fg: oklch(0.98 0 0);

	--ink: oklch(0.24 0.02 255);
	--on-ink: oklch(0.98 0 0);
	--muted-on-ink: oklch(0.72 0.015 255);
	--accent-on-ink: oklch(0.78 0.13 210);

	--border-subtle: oklch(0.93 0.008 85);

	--card-shadow: 0 16px 32px oklch(0.22 0.03 255 / 0.1);

	--font-sans: "Space Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
	--font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

	--maxw-text: 46rem;
	--maxw-wide: 68rem;
}

@media (prefers-color-scheme: dark) {
	:root {
		--bg: oklch(0.18 0.008 255);
		--surface: oklch(0.22 0.008 255);
		--text: oklch(0.93 0.004 255);
		--muted: oklch(0.7 0.01 255);
		--border: oklch(0.31 0.008 255);
		--accent: oklch(0.78 0.11 215);
		--accent-hover: oklch(0.85 0.09 215);
		--focus: oklch(0.78 0.11 215);
		--brand-it: oklch(0.78 0.13 210);

		--btn-bg: oklch(0.8 0.1 215);
		--btn-bg-hover: oklch(0.89 0.09 205);
		--btn-fg: oklch(0.17 0.02 255);

		--ink: oklch(0.26 0.014 255);
		--on-ink: oklch(0.95 0.004 255);
		--muted-on-ink: oklch(0.7 0.01 255);
		--accent-on-ink: oklch(0.8 0.11 215);

		--border-subtle: oklch(0.27 0.008 255);

		--card-shadow: 0 16px 32px oklch(0 0 0 / 0.35);
	}
}

* { box-sizing: border-box; }

html {
	scroll-behavior: smooth;
	scroll-padding-top: 6rem;
	overflow-x: clip;
}

body {
	margin: 0;
	background: var(--bg);
	color: var(--text);
	font-family: var(--font-sans);
	font-size: 1.0625rem;
	line-height: 1.65;
	-webkit-font-smoothing: antialiased;
}

a {
	color: var(--accent);
	text-decoration-thickness: 1px;
	text-underline-offset: 2px;
}
a:hover { color: var(--accent-hover); }

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

h1, h2, h3, h4 {
	line-height: 1.2;
	font-weight: 600;
	letter-spacing: -0.02em;
	text-wrap: pretty;
}

.eyebrow {
	font-family: var(--font-mono);
	font-size: 0.75rem;
	font-weight: 500;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: var(--muted);
	margin: 0 0 0.9rem;
}

.skip-link {
	position: absolute;
	left: 0.5rem;
	top: -3rem;
	background: var(--surface);
	border: 1px solid var(--border);
	padding: 0.5rem 0.75rem;
	border-radius: 4px;
	transition: top 0.15s ease;
	z-index: 100;
}
.skip-link:focus { top: 0.5rem; }

.wrap {
	width: 100%;
	max-width: var(--maxw-wide);
	margin-inline: auto;
	padding-inline: clamp(1.25rem, 5vw, 3.5rem);
}
.wrap--text > * { max-width: var(--maxw-text); }

/* Header */
.site-header {
	position: sticky;
	top: 0;
	background: color-mix(in srgb, var(--bg) 90%, transparent);
	backdrop-filter: blur(8px);
	border-bottom: 1px solid var(--border);
	z-index: 50;
}
.site-header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1rem;
	min-height: 5rem;
}
.brand {
	display: inline-flex;
	align-items: center;
	gap: 0.6rem;
	font-weight: 600;
	letter-spacing: -0.03em;
	color: var(--text);
	text-decoration: none;
	font-size: 1.35rem;
	white-space: nowrap;
}
.brand__mark {
	width: 2rem;
	height: 2rem;
	flex: none;
	color: var(--text);
	transition: transform 0.35s ease;
}
.brand:hover .brand__mark { transform: rotate(8deg); }
.brand__mark circle { fill: currentColor; }
.brand__mark .brand__mark-dot { fill: var(--brand-it); }
.brand__it {
	color: var(--brand-it);
	font-weight: 400;
}
.wordmark { white-space: nowrap; }
.site-nav {
	display: flex;
	align-items: center;
	gap: 1.9rem;
}
.site-nav > a {
	color: var(--muted);
	text-decoration: none;
	font-size: 1rem;
	transition: color 0.2s ease;
}
.site-nav > a:hover { color: var(--brand-it); }

.site-nav .nav-cta {
	background: var(--btn-bg);
	color: var(--btn-fg);
	padding: 0.6rem 1.15rem;
	border-radius: 3px;
	font-size: 0.95rem;
	font-weight: 500;
	transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.site-nav .nav-cta:hover {
	background: var(--btn-bg-hover);
	color: var(--btn-fg);
	transform: translateY(-2px);
	box-shadow: 0 6px 16px oklch(0.22 0.03 255 / 0.25);
}

.lang-switch {
	display: inline-flex;
	gap: 0.4rem;
	font-family: var(--font-mono);
	font-size: 0.85rem;
	letter-spacing: 0.05em;
	color: var(--muted);
}
.lang-switch a,
.lang-switch span {
	font-size: 0.85rem;
	color: var(--muted);
	font-weight: 400;
	text-decoration: none;
}
.lang-switch a:hover { color: var(--brand-it); }
.lang-switch [aria-current="page"] { color: var(--text); font-weight: 500; }

@media (max-width: 40rem) {
	.site-nav { gap: 1.1rem; }
	.site-nav .nav-secondary { display: none; }
}
@media (max-width: 30rem) {
	.brand { font-size: 1.15rem; }
	.brand__mark { width: 1.6rem; height: 1.6rem; }
	.site-nav { gap: 0.85rem; }
	/* Section jump-links don't fit next to the CTA and lang switch on phones;
	   the page is short enough to scroll, and the Kontakt button stays. */
	.site-nav > a:not(.nav-cta) { display: none; }
	.site-nav .nav-cta { padding: 0.55rem 0.95rem; font-size: 0.9rem; }
}

/* Hero */
.hero {
	position: relative;
	overflow: hidden;
	contain: paint;
	padding: clamp(3.5rem, 10vw, 7.5rem) 0 clamp(3rem, 7vw, 6rem);
	border-bottom: 1px solid var(--border);
}
.hero::before,
.hero::after {
	content: "";
	position: absolute;
	pointer-events: none;
	z-index: 0;
}
.hero::before {
	inset: -3rem -3rem -3rem 30%;
	background-image: radial-gradient(var(--brand-it) 1.5px, transparent 1.6px);
	background-size: 28px 28px;
	opacity: 0.16;
}

/*
 * Decorative drift, only on touch devices (phones/tablets) — they composite on
 * the GPU, so a transform loop is cheap. Deliberately NOT enabled on desktop:
 * the site is used on an old laptop that composites in software, where any
 * looping animation pegs the CPU. See prefers-reduced-motion block below too.
 */
@media (hover: none) and (pointer: coarse) and (prefers-reduced-motion: no-preference) {
	.hero::before {
		animation: driftDots 8s linear infinite;
		will-change: transform;
	}
}
@keyframes driftDots {
	from { transform: translate3d(0, 0, 0); }
	to { transform: translate3d(-28px, -28px, 0); }
}
.hero::after {
	top: -8rem;
	right: -10rem;
	width: 26rem;
	height: 26rem;
	border-radius: 50%;
	background: radial-gradient(circle, color-mix(in srgb, var(--brand-it) 16%, transparent), transparent 70%);
}
.hero .wrap {
	position: relative;
	z-index: 1;
}
.hero .eyebrow { animation: rise 0.6s ease-out both; }
.hero h1 {
	font-size: clamp(2.25rem, 1.4rem + 3.4vw, 3.25rem);
	line-height: 1.1;
	margin: 0 0 1.25rem;
	max-width: 20ch;
	animation: rise 0.6s ease-out 0.08s both;
}
.hero p {
	font-size: clamp(1.1rem, 2.5vw, 1.3rem);
	color: var(--muted);
	margin: 0 0 2rem;
	max-width: 46ch;
	animation: rise 0.6s ease-out 0.16s both;
}
.hero .btn { animation: rise 0.6s ease-out 0.24s both; }

@keyframes rise {
	from { opacity: 0; transform: translateY(18px); }
	to { opacity: 1; transform: translateY(0); }
}

.btn {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	background: var(--btn-bg);
	color: var(--btn-fg);
	padding: 0.85rem 1.5rem;
	border-radius: 3px;
	text-decoration: none;
	font-weight: 500;
	font-size: 0.95rem;
	transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.btn::after { content: "\2192"; }
.btn:hover {
	background: var(--btn-bg-hover);
	color: var(--btn-fg);
	transform: translateY(-3px);
	box-shadow: 0 10px 24px oklch(0.22 0.03 255 / 0.3);
}

/* Sections */
.section {
	padding: clamp(3rem, 8vw, 5.5rem) 0;
	border-bottom: 1px solid var(--border);
}
.section h2 {
	font-size: clamp(1.6rem, 3.5vw, 2rem);
	margin: 0;
}
.section__lead {
	color: var(--muted);
	max-width: 52ch;
	margin: 0.75rem 0 0;
}

/* Offer grid */
.offer-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
	gap: 1.5rem;
	margin-top: 2.5rem;
}
.offer-card,
.prose__cta {
	position: relative;
	overflow: hidden;
	background: var(--surface);
	border-radius: 18px 4px 18px 4px;
	box-shadow: 0 0 0 1px var(--border);
}
.offer-card::before,
.prose__cta::before {
	content: "";
	position: absolute;
	top: 0;
	left: 0;
	width: 46px;
	height: 4px;
	background: var(--brand-it);
	border-radius: 0 0 3px 0;
}
.offer-card {
	padding: 1.9rem 2rem 1.6rem;
	transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.offer-card:hover {
	transform: translateY(-4px);
	box-shadow: var(--card-shadow), 0 0 0 1px color-mix(in srgb, var(--brand-it) 45%, transparent);
}
.offer-card h3,
.offer-card h4 {
	margin: 0.4rem 0 0;
	font-size: 1.1rem;
	line-height: 1.3;
}
.offer-card p {
	margin: 0.65rem 0 0;
	color: var(--muted);
	font-size: 0.95rem;
	line-height: 1.55;
}
.offer-card ul {
	list-style: none;
	margin: 0.9rem 0 0;
	padding: 0.95rem 0 0;
	border-top: 1px solid var(--border-subtle);
	display: flex;
	flex-wrap: wrap;
	gap: 0.4rem 0.9rem;
}
.offer-card li {
	font-family: var(--font-mono);
	font-size: 0.72rem;
	letter-spacing: 0.02em;
	color: var(--muted);
}

/* About */
.about-grid {
	display: grid;
	grid-template-columns: 1.1fr 1fr;
	gap: clamp(2rem, 5vw, 3.5rem);
	align-items: start;
	margin-top: 2.75rem;
}
@media (max-width: 60rem) {
	.about-grid { grid-template-columns: 1fr; }
}

.prose {
	max-width: var(--maxw-text);
}
.prose h3 {
	font-size: 1.3rem;
	margin: 2.5rem 0 0.85rem;
}
.prose > :first-child { margin-top: 0; }
.prose p { margin: 0 0 1.1rem; }
.prose strong { font-weight: 600; color: var(--text); }
.prose__cta {
	padding: 1.75rem 1.9rem;
	margin-top: 2rem;
}
.prose__cta p { margin: 0; color: var(--muted); }
.prose__cta p + p {
	margin-top: 0.75rem;
	font-size: 1.1rem;
	font-weight: 600;
	color: var(--text);
}

.realizations {
	position: sticky;
	top: 6rem;
}
@media (max-width: 60rem) {
	.realizations { position: static; }
}
.realizations h3 {
	font-family: var(--font-mono);
	font-size: 0.75rem;
	font-weight: 500;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: var(--muted);
	margin: 0 0 0.5rem;
}
.realizations__list {
	list-style: none;
	margin: 0;
	padding: 0;
}
.realizations__list li {
	border-top: 1px solid var(--border);
	border-left: 2px solid transparent;
	padding: 1.15rem 0;
	transition: padding-left 0.2s ease, border-color 0.2s ease;
}
.realizations__list li:hover {
	padding-left: 0.75rem;
	border-left-color: var(--brand-it);
}
.realizations__list h4 {
	margin: 0 0 0.35rem;
	font-family: var(--font-mono);
	font-size: 0.72rem;
	font-weight: 500;
	letter-spacing: 0.07em;
	text-transform: uppercase;
	color: var(--brand-it);
}
.realizations__list p {
	margin: 0;
	color: var(--muted);
	font-size: 0.92rem;
	line-height: 1.55;
}
.realizations__list strong { font-weight: 600; color: var(--text); }

/* Contact */
.section--contact { border-bottom: none; }
.contact-card {
	background: var(--ink);
	border: 1px solid var(--border);
	border-radius: 6px;
	padding: clamp(1.75rem, 5vw, 3.5rem);
	display: flex;
	flex-wrap: wrap;
	justify-content: space-between;
	align-items: flex-end;
	gap: 2.5rem;
	margin-top: 2.5rem;
}
.contact-card__intro {
	max-width: 30rem;
}
.contact-card__intro .eyebrow { color: var(--accent-on-ink); }
.contact-card__intro h2 {
	margin: 0;
	color: var(--on-ink);
	font-size: clamp(1.5rem, 3.5vw, 1.9rem);
}
.contact-card__details {
	margin: 0;
	display: flex;
	flex-direction: column;
	gap: 1rem;
	font-family: var(--font-mono);
}
.contact-card__details > div {
	display: flex;
	flex-direction: column;
	gap: 0.15rem;
}
.contact-card__details dt {
	font-size: 0.7rem;
	text-transform: uppercase;
	letter-spacing: 0.1em;
	color: var(--muted-on-ink);
}
.contact-card__details dd {
	margin: 0;
	color: var(--on-ink);
	font-size: 0.95rem;
}
.contact-card__details a {
	color: var(--on-ink);
	text-decoration: underline;
	text-underline-offset: 3px;
}
.contact-card__details a:hover { color: var(--accent-on-ink); }

.obf .x { display: none; }
.obf .at::before  { content: "@" / " małpa "; }
.obf .dot::before { content: "." / " kropka "; }
:lang(en) .obf .at::before  { content: "@" / " at "; }
:lang(en) .obf .dot::before { content: "." / " dot "; }

/* Footer */
.site-footer {
	padding: 2rem 0;
	color: var(--muted);
	font-size: 0.85rem;
	border-top: 1px solid var(--border);
}
.site-footer__inner {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 0.5rem 1.5rem;
	justify-content: space-between;
}
.site-footer .brand__mark {
	width: 1.1rem;
	height: 1.1rem;
	color: var(--muted);
}
.site-footer .brand__mark circle { fill: currentColor; }
.site-footer .brand__mark .brand__mark-dot { fill: var(--brand-it); }
.site-footer__copy {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	font-family: var(--font-mono);
}

.notfound-main {
	min-height: 68vh;
	display: flex;
	flex-direction: column;
	justify-content: center;
}
.notfound {
	padding: clamp(2.5rem, 7vw, 4.5rem) 0;
}
.notfound + .notfound {
	border-top: 1px solid var(--border);
}
.notfound .eyebrow {
	color: var(--brand-it);
}
.notfound h1,
.notfound h2 {
	font-size: clamp(1.9rem, 1.3rem + 2.4vw, 2.6rem);
	margin: 0 0 1rem;
}
.notfound__lead {
	color: var(--muted);
	font-size: 1.1rem;
	margin: 0 0 2rem;
	max-width: 48ch;
}
.notfound__alt {
	font-size: 0.95rem;
	margin: 1.5rem 0 0;
}

@media (prefers-reduced-motion: reduce) {
	*, ::before, ::after {
		animation-duration: 0.001ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.001ms !important;
		scroll-behavior: auto !important;
	}
}