:root {
	/* Ground & Surfaces (60 / 30 / 10 balance) */
	--ground: #0e1424;
	--surface: #171e32;
	--surface-2: #232c43;
	--surface-3: #2b3652;
	--line: #3e4861;
	--line-light: #525f7f;

	--ink: #e2e8f6;
	--ink-soft: #aeb7ce;
	--ink-faint: #78849e;
	--ink-inverse: #0e1424;

	--accent: #35c4e6;
	--accent-hover: #52d4f2;
	--accent-active: #22adc8;
	--accent-ink: #111;
	--accent-glow: rgba(53, 196, 230, 0.18);
	--accent-ring: rgba(53, 196, 230, 0.45);

	--status-ok: #38d39f;
	--status-err: #ff5c5c;
	--status-warn: #ffb84d;

	--vitu-8ce: 'Space Grotesk', 'Space Grotesk Fallback', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
	--vitu-70b: 'Archivo', 'Archivo Fallback', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
	--vitu-9f0: 'JetBrains Mono', 'JetBrains Mono Fallback', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

	--text-xs: clamp(0.72rem, 0.7rem + 0.15vw, 0.8rem);
	--text-sm: clamp(0.82rem, 0.8rem + 0.2vw, 0.92rem);
	--text-base: clamp(0.95rem, 0.92rem + 0.25vw, 1.05rem);
	--text-md: clamp(1.1rem, 1.05rem + 0.4vw, 1.25rem);
	--text-lg: clamp(1.28rem, 1.2rem + 0.65vw, 1.55rem);
	--text-xl: clamp(1.6rem, 1.45rem + 1vw, 2.05rem);
	--text-2xl: clamp(2rem, 1.75rem + 1.6vw, 2.75rem);
	--text-3xl: clamp(2.45rem, 2.05rem + 2.4vw, 3.65rem);
	--text-display: clamp(2.85rem, 2.3rem + 3.4vw, 4.8rem);

	/* Spacing Rhythm (strict engineering scale) */
	--space-2: 0.125rem;
	--space-4: 0.25rem;
	--space-8: 0.5rem;
	--space-12: 0.75rem;
	--space-16: 1rem;
	--space-20: 1.25rem;
	--space-24: 1.5rem;
	--space-32: 2rem;
	--space-40: 2.5rem;
	--space-48: 3rem;
	--space-64: 4rem;
	--space-80: 5rem;
	--space-96: 6rem;
	--space-128: 8rem;

	--band: clamp(3.5rem, 6vw, 5rem);
	--band-tight: clamp(2rem, 3.5vw, 2.75rem);
	--band-open: clamp(4.5rem, 8vw, 6.5rem);

	/* Layout Constraints */
	--site-max-width: 1280px;

	--prose-max-width: 65ch;
	--header-height: 4.25rem;
	--header-condensed-height: 3.75rem;
	--utility-bar-height: 2.125rem;
	--radius-none: 0px;

	--ease-ledger: cubic-bezier(0.16, 1, 0.3, 1);
	--ease-snappy: cubic-bezier(0.2, 0.8, 0.2, 1);
	--ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
	--duration-fast: 160ms;
	--duration-base: 240ms;
	--duration-slow: 420ms;
	--duration-rise: 680ms;

	/* Scroll padding for anchors accounting for compact header */
	scroll-padding-top: calc(var(--header-height) + var(--utility-bar-height) + 1.5rem);
}


*, *::before, *::after {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
	border-radius: var(--radius-none);
}

html {
	font-size: 16px;
	scroll-behavior: smooth;
	background-color: var(--ground);
	color: var(--ink);
	-webkit-text-size-adjust: 100%;
	text-rendering: optimizeLegibility;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

body {
	font-family: var(--vitu-70b);
	font-size: var(--text-base);
	line-height: 1.62;
	color: var(--ink);
	background-color: var(--ground);
	min-height: 100vh;
	overflow-x: hidden;
	position: relative;
	display: flex;
	flex-direction: column;
}

/* Form controls only get font inheritance */
button, input, select, textarea {
	font: inherit;
	color: inherit;
}

img, picture, svg, video {
	display: block;
	max-width: 100%;
	height: auto;
}

a {
	color: var(--accent);
	text-decoration: none;
	transition: color var(--duration-fast) var(--ease-ledger);
}

a:hover { color: var(--accent-hover); }

ul, ol { list-style: none; }

table {
	border-collapse: collapse;
	width: 100%;
}


h1, h2, h3, h4, h5, h6 {
	font-family: var(--vitu-8ce);
	color: var(--ink);
	font-weight: 700;
	line-height: 1.12;
	letter-spacing: -0.025em;
	text-wrap: balance;
	margin: 0;
}

h1 {
	font-size: var(--text-display);
	font-weight: 700;
	letter-spacing: -0.035em;
	max-width: 16ch;
}

h2 {
	font-size: var(--text-2xl);
	letter-spacing: -0.025em;
	max-width: 24ch;
}

h3 {
	font-size: var(--text-xl);
	letter-spacing: -0.015em;
}

h4 {
	font-size: var(--text-lg);
	font-weight: 600;
}

p {
	max-width: var(--prose-max-width);
	margin-bottom: var(--space-16);
	color: var(--ink);
}

p.standfirst, .standfirst {
	font-size: var(--text-md);
	line-height: 1.5;
	color: var(--ink-soft);
	max-width: var(--prose-max-width);
	margin-bottom: var(--space-24);
}

p.lede, .lede {
	font-size: var(--text-lg);
	line-height: 1.45;
	color: var(--ink-soft);
	max-width: 52ch;
	margin-bottom: var(--space-24);
}

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

/* Monospace & Tabular figures for specs and costs */
code, kbd, samp, pre, .mono, .spec-code, .price-figure, .coordinate {
	font-family: var(--vitu-9f0);
	font-feature-settings: 'tnum' 1, 'zero' 1;
}

.mono {
	font-size: var(--text-sm);
	letter-spacing: 0.04em;
}

.spec-code {
	font-size: var(--text-xs);
	color: var(--accent);
	text-transform: uppercase;
	letter-spacing: 0.08em;
}

.price-figure {
	font-size: var(--text-xl);
	font-weight: 700;
	color: var(--ink);
	letter-spacing: -0.01em;
}

.price-unit {
	font-size: var(--text-xs);
	color: var(--ink-soft);
	font-family: var(--vitu-9f0);
	text-transform: uppercase;
	margin-left: var(--space-4);
	letter-spacing: 0.06em;
}


.page-wrapper {
	flex: 1 0 auto;
	display: flex;
	flex-direction: column;
	min-width: 0;
	position: relative;
}

.shell-container, .site-container {
	width: 100%;
	max-width: var(--site-max-width);
	margin-left: auto;
	margin-right: auto;
	padding-left: clamp(1rem, 4vw, 2.5rem);
	padding-right: clamp(1rem, 4vw, 2.5rem);
	min-width: 0;
}

.section-block {
	padding-block: var(--band);
	border-bottom: 1px solid var(--line);
	position: relative;
	min-width: 0;
}

.section-block > :first-child { margin-top: 0; }

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

.section-block--tight { padding-block: var(--band-tight); }

.section-block--surface { background-color: var(--surface); }

.section-header {
	margin-bottom: clamp(1.75rem, 3.5vw, 3rem);
	display: flex;
	flex-direction: column;
	gap: var(--space-12);
	min-width: 0;
}

.section-header--split {
	display: grid;
	grid-template-columns: 1fr;
	gap: var(--space-16);
}

@media (min-width: 860px) {
	.section-header--split {
		grid-template-columns: 1.2fr 1fr;
		align-items: flex-end;
		gap: var(--space-48);
	}
}

/* Hairline Ledger Rules */
.hairline {
	border: 0;
	border-top: 1px solid var(--line);
	height: 0;
	margin: var(--space-24) 0;
	width: 100%;
}

.hairline--accent { border-top-color: var(--accent); }

/* Accessible Visually Hidden Utility */
.visually-hidden {
	position: absolute !important;
	width: 1px !important;
	height: 1px !important;
	padding: 0 !important;
	margin: -1px !important;
	overflow: hidden !important;

	clip: rect(0, 0, 0, 0) !important;
	white-space: nowrap !important;
	border: 0 !important;
}

.skip-link {
	position: absolute;
	top: var(--space-8);
	left: var(--space-8);
	z-index: 9999;
	padding: var(--space-12) var(--space-20);
	background: var(--accent);
	color: var(--accent-ink);
	font-family: var(--vitu-9f0);
	font-weight: 700;
	font-size: var(--text-sm);
	text-decoration: none;
	transform: translateY(-200%);
	transition: transform var(--duration-fast) var(--ease-ledger);
}

.skip-link:focus {
	transform: translateY(0);
	outline: 2px solid var(--ink);
}


.spec-ledger {
	display: flex;

	flex-direction: column;
	width: 100%;
	border-top: 1px solid var(--line);
	margin-top: var(--space-24);
	margin-bottom: var(--space-32);
}

.spec-row {
	display: grid;
	grid-template-columns: 1fr;
	padding: var(--space-16) 0;
	border-bottom: 1px solid var(--line);
	align-items: baseline;
	gap: var(--space-8);
	min-width: 0;
	transition: background-color var(--duration-fast) var(--ease-ledger);
}

@media (min-width: 640px) {
	.spec-row {
		grid-template-columns: minmax(180px, 320px) 1fr;
		gap: var(--space-24);
		padding: var(--space-16) var(--space-12);
	}
	.spec-row:hover { background-color: rgba(35, 44, 67, 0.45); }
}

.spec-label {
	font-family: var(--vitu-9f0);
	font-size: var(--text-xs);
	text-transform: uppercase;
	letter-spacing: 0.08em;
	color: var(--ink-soft);
	display: flex;
	align-items: center;
	gap: var(--space-8);
}

.spec-value {
	font-size: var(--text-base);
	color: var(--ink);
	font-weight: 500;
	min-width: 0;
	word-break: break-word;
}

.spec-value--mono {
	font-family: var(--vitu-9f0);
	font-size: var(--text-sm);
	letter-spacing: 0.02em;
}

.spec-value--price {
	font-family: var(--vitu-9f0);
	font-size: var(--text-lg);
	font-weight: 700;
	color: var(--accent);
}


@media (prefers-reduced-motion: reduce) {
	html { scroll-behavior: auto; }

	*, *::before, *::after {
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.01ms !important;
		scroll-behavior: auto !important;
	}
}