/* Blank Ledger — marketing site
   Palette and type follow the app: paper ground, ink text, a deep green for
   action and a muted gold for labels. Figures are set in mono, the way the
   app sets them, so the site and the product feel like one thing. */

:root {
	--paper: #f0f1ee;
	--paper-raised: #fbfbf9;
	--paper-sage: #e4ebe5;
	--ink: #161a17;
	--ink-soft: #5c635d;
	--ink-faint: #8b918c;
	--line: #dcdfda;
	--green: #1e5b44;
	--green-bright: #2a7a5b;
	--gold: #9a7420;
	--radius: 14px;
	--maxw: 1120px;

	--font-display: "Fraunces", "Iowan Old Style", Georgia, serif;
	--font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
	--font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
	:root {
		--paper: #141715;
		--paper-raised: #1d211e;
		--paper-sage: #1b2721;
		--ink: #eef0ec;
		--ink-soft: #a3aaa4;
		--ink-faint: #767d78;
		--line: #2b302c;
		--green: #4fae87;
		--green-bright: #61c99e;
		--gold: #c9a55e;
	}
}

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

html {
	scroll-behavior: smooth;
}

body {
	margin: 0;
	background: var(--paper);
	color: var(--ink);
	font-family: var(--font-body);
	font-size: 17px;
	line-height: 1.65;
	-webkit-font-smoothing: antialiased;
}

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

a {
	color: var(--green);
	text-decoration-thickness: 1px;
	text-underline-offset: 3px;
}

a:hover {
	color: var(--green-bright);
}

.wrap {
	width: 100%;
	max-width: var(--maxw);
	margin: 0 auto;
	padding: 0 24px;
}

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

.site-header {
	position: sticky;
	top: 0;
	z-index: 50;
	background: color-mix(in srgb, var(--paper) 88%, transparent);
	backdrop-filter: saturate(160%) blur(12px);
	border-bottom: 1px solid var(--line);
}

.site-header .wrap {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 24px;
	height: 68px;
}

.wordmark {
	display: flex;
	align-items: baseline;
	gap: 9px;
	text-decoration: none;
	color: var(--ink);
}

.wordmark strong {
	font-family: var(--font-display);
	font-size: 23px;
	font-weight: 600;
	letter-spacing: -0.01em;
}

.wordmark span {
	font-size: 10px;
	font-weight: 600;
	letter-spacing: 0.24em;
	text-transform: uppercase;
	color: var(--gold);
}

.site-nav {
	display: flex;
	align-items: center;
	gap: 28px;
	font-size: 15px;
}

.site-nav a {
	color: var(--ink-soft);
	text-decoration: none;
}

.site-nav a:hover {
	color: var(--ink);
}

/* ---------- Buttons ---------- */

.btn {
	display: inline-block;
	padding: 12px 22px;
	border-radius: 999px;
	font-size: 15px;
	font-weight: 500;
	text-decoration: none;
	transition: transform 0.15s ease, background 0.15s ease;
}

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

.btn-primary {
	background: var(--green);
	color: #fff;
}

.btn-primary:hover {
	background: var(--green-bright);
	color: #fff;
}

.btn-ghost {
	border: 1px solid var(--line);
	color: var(--ink);
	background: var(--paper-raised);
}

.btn-ghost:hover {
	color: var(--ink);
	border-color: var(--ink-faint);
}

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

.hero {
	padding: 88px 0 56px;
}

.eyebrow {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	font-size: 11px;
	font-weight: 600;
	letter-spacing: 0.18em;
	text-transform: uppercase;
	color: var(--gold);
	margin: 0 0 22px;
}

.eyebrow::before {
	content: "";
	width: 22px;
	height: 1px;
	background: var(--gold);
}

/* Evens out the line lengths so a heading doesn't strand one short word on
   its own line. Ignored by browsers that don't support it, which just get the
   ordinary greedy wrap. */
h1,
h2,
.feature h3 {
	text-wrap: balance;
}

.hero h1 {
	font-family: var(--font-display);
	font-weight: 600;
	font-size: clamp(2.6rem, 6vw, 4.1rem);
	line-height: 1.06;
	letter-spacing: -0.02em;
	margin: 0 0 24px;
	max-width: 15ch;
}

.hero p.lede {
	font-size: clamp(1.05rem, 2vw, 1.25rem);
	color: var(--ink-soft);
	max-width: 56ch;
	margin: 0 0 34px;
}

.hero-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 14px;
	align-items: center;
}

.hero-note {
	margin: 26px 0 0;
	font-size: 14px;
	color: var(--ink-faint);
}

/* ---------- Stat strip ---------- */

.stats {
	padding: 8px 0 72px;
}

.stat-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(216px, 1fr));
	gap: 16px;
}

.stat {
	background: var(--paper-raised);
	border: 1px solid var(--line);
	border-radius: var(--radius);
	padding: 22px;
}

.stat:first-child {
	background: var(--paper-sage);
}

.stat .label {
	font-family: var(--font-mono);
	font-size: 10.5px;
	letter-spacing: 0.16em;
	text-transform: uppercase;
	color: var(--ink-soft);
	margin: 0 0 10px;
}

.stat .figure {
	font-family: var(--font-display);
	font-size: clamp(1.5rem, 3vw, 1.95rem);
	font-weight: 600;
	letter-spacing: -0.02em;
	margin: 0;
	font-variant-numeric: tabular-nums;
}

.stat .sub {
	margin: 6px 0 0;
	font-size: 13px;
	color: var(--ink-faint);
}

.stats .caption {
	margin: 18px 0 0;
	font-size: 13px;
	color: var(--ink-faint);
	font-style: italic;
}

/* ---------- Sections ---------- */

section {
	scroll-margin-top: 84px;
}

.section-head {
	max-width: 62ch;
	margin-bottom: 44px;
}

.section-head h2 {
	font-family: var(--font-display);
	font-weight: 600;
	font-size: clamp(1.9rem, 4vw, 2.6rem);
	line-height: 1.15;
	letter-spacing: -0.02em;
	margin: 0 0 16px;
}

.section-head p {
	color: var(--ink-soft);
	margin: 0;
	font-size: 1.05rem;
}

/* ---------- Features ---------- */

.features {
	padding: 84px 0;
	border-top: 1px solid var(--line);
}

.feature-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
	gap: 20px;
}

.feature {
	background: var(--paper-raised);
	border: 1px solid var(--line);
	border-radius: var(--radius);
	padding: 28px;
}

.feature .icon {
	width: 34px;
	height: 34px;
	color: var(--green);
	margin-bottom: 18px;
}

.feature h3 {
	font-family: var(--font-display);
	font-size: 1.25rem;
	font-weight: 600;
	margin: 0 0 10px;
	letter-spacing: -0.01em;
}

.feature p {
	margin: 0;
	color: var(--ink-soft);
	font-size: 15.5px;
	line-height: 1.6;
}

/* ---------- Privacy pitch ---------- */

.privacy-pitch {
	padding: 84px 0;
	border-top: 1px solid var(--line);
	background: var(--paper-sage);
}

.pitch-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
	gap: 20px;
	margin-top: 40px;
}

.pitch-item h3 {
	font-family: var(--font-mono);
	font-size: 11px;
	letter-spacing: 0.16em;
	text-transform: uppercase;
	color: var(--gold);
	margin: 0 0 12px;
}

.pitch-item p {
	margin: 0;
	color: var(--ink-soft);
	font-size: 15.5px;
}

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

.site-footer {
	border-top: 1px solid var(--line);
	padding: 44px 0;
	font-size: 14.5px;
	color: var(--ink-faint);
}

.site-footer .wrap {
	display: flex;
	flex-wrap: wrap;
	gap: 18px 32px;
	align-items: center;
	justify-content: space-between;
}

.site-footer nav {
	display: flex;
	gap: 24px;
	flex-wrap: wrap;
}

.site-footer a {
	color: var(--ink-soft);
	text-decoration: none;
}

.site-footer a:hover {
	color: var(--ink);
}

/* ---------- Legal document ---------- */

.doc {
	padding: 72px 0 96px;
}

.doc-inner {
	max-width: 72ch;
}

.doc h1 {
	font-family: var(--font-display);
	font-weight: 600;
	font-size: clamp(2.1rem, 5vw, 3rem);
	letter-spacing: -0.02em;
	line-height: 1.1;
	margin: 0 0 12px;
}

.doc .updated {
	font-family: var(--font-mono);
	font-size: 12.5px;
	color: var(--ink-faint);
	margin: 0 0 40px;
}

.doc h2 {
	font-family: var(--font-display);
	font-size: 1.4rem;
	font-weight: 600;
	letter-spacing: -0.01em;
	margin: 44px 0 14px;
	padding-top: 20px;
	border-top: 1px solid var(--line);
}

.doc h2:first-of-type {
	border-top: none;
	padding-top: 0;
}

.doc p,
.doc li {
	color: var(--ink-soft);
}

.doc p {
	margin: 0 0 16px;
}

.doc ul {
	margin: 0 0 16px;
	padding-left: 22px;
}

.doc li {
	margin-bottom: 9px;
}

.doc strong {
	color: var(--ink);
	font-weight: 600;
}

.callout {
	background: var(--paper-sage);
	border-left: 3px solid var(--green);
	border-radius: 0 10px 10px 0;
	padding: 20px 24px;
	margin: 0 0 32px;
}

.callout p {
	margin: 0;
	color: var(--ink);
}

.toc {
	background: var(--paper-raised);
	border: 1px solid var(--line);
	border-radius: var(--radius);
	padding: 22px 26px;
	margin: 0 0 44px;
}

.toc h2 {
	font-family: var(--font-mono);
	font-size: 11px;
	letter-spacing: 0.16em;
	text-transform: uppercase;
	color: var(--gold);
	border: none;
	margin: 0 0 12px;
	padding: 0;
}

.toc ol {
	margin: 0;
	padding-left: 20px;
	columns: 2;
	column-gap: 32px;
	font-size: 15px;
}

.toc li {
	margin-bottom: 6px;
	break-inside: avoid;
}

.toc a {
	text-decoration: none;
}

.toc a:hover {
	text-decoration: underline;
}

@media (max-width: 620px) {
	/* The header is the one row that can't wrap, so it sets the narrowest the
	   page can go. Shrink it rather than letting it push the whole document
	   into a horizontal scroll. */
	.wrap {
		padding: 0 18px;
	}

	.site-header .wrap {
		height: 60px;
		gap: 12px;
	}

	.wordmark strong {
		font-size: 20px;
	}

	.wordmark span {
		font-size: 9px;
		letter-spacing: 0.16em;
	}

	.site-nav {
		gap: 16px;
		font-size: 14px;
	}

	.toc ol {
		columns: 1;
	}

	.hero {
		padding: 60px 0 40px;
	}

	.features,
	.privacy-pitch {
		padding: 60px 0;
	}
}

/* Respect users who'd rather not have motion */
@media (prefers-reduced-motion: reduce) {
	html {
		scroll-behavior: auto;
	}

	.btn {
		transition: none;
	}
}