:root {
  --ink: #1c1916;
  --ink-soft: #4a453e;
  --paper: #f6f1e8;
  --paper-raised: #fffaf3;
  --rule: #ddd4c6;
  --rule-strong: #c9beae;
  --accent: #2f4a3d;
  --accent-hover: #24392f;
  --copper: #a35a2a;
  --badge: #efe4c8;
  --badge-ink: #5c3d16;
  --focus: #2f4a3d;
  --max: 68rem;
  --text: 38rem;
  --font-serif: "Source Serif 4", "Iowan Old Style", "Palatino Linotype", Palatino, "Times New Roman", serif;
  --font-sans: "Source Sans 3", "Source Sans Pro", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 1.125rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--accent);
  text-underline-offset: 0.18em;
}

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

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

.skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  background: var(--ink);
  color: var(--paper);
  padding: 0.5rem 0.85rem;
  z-index: 10;
}

.skip:focus { top: 1rem; }

.wrap {
  width: min(var(--max), calc(100% - 2.5rem));
  margin-inline: auto;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--rule);
  background: color-mix(in srgb, var(--paper) 88%, white);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: inherit;
  text-decoration: none;
  min-width: 0;
}

.brand:hover { color: inherit; }

.mark {
  width: 2.25rem;
  height: 2.25rem;
  flex: 0 0 auto;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 560;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.brand-name span {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-top: 0.1rem;
}

nav ul {
  display: flex;
  gap: 1.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

nav a {
  color: var(--ink);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 500;
}

nav a:hover,
nav a[aria-current="page"] {
  color: var(--accent);
  text-decoration: underline;
}

/* Hero */
.hero {
  padding: 4.5rem 0 3.5rem;
}

.kicker {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--copper);
  margin: 0 0 0.85rem;
}

.hero h1 {
  font-family: var(--font-serif);
  font-weight: 520;
  font-size: clamp(2.4rem, 6vw, 3.8rem);
  letter-spacing: -0.03em;
  line-height: 1.08;
  margin: 0 0 1.1rem;
  max-width: 14ch;
}

.lede {
  font-size: 1.28rem;
  color: var(--ink-soft);
  max-width: 36rem;
  margin: 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.1rem;
  margin-top: 1.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.15rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.2;
}

.btn-primary {
  background: var(--accent);
  color: #f6f1e8;
}

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

.btn-ghost {
  color: var(--ink);
  border: 1px solid var(--rule-strong);
  background: transparent;
}

.btn-ghost:hover { background: var(--paper-raised); color: var(--ink); }

/* Sections */
.section {
  padding: 3.25rem 0;
  border-top: 1px solid var(--rule);
}

.section h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 3.5vw, 2.15rem);
  font-weight: 560;
  letter-spacing: -0.02em;
  margin: 0 0 0.85rem;
  line-height: 1.2;
}

.section .prose,
.page-body {
  max-width: var(--text);
}

.prose p,
.page-body p,
.page-body li {
  color: var(--ink);
}

.prose p:first-child,
.page-body > p:first-of-type {
  margin-top: 0;
}

/* Product */
.product {
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: 1.15rem;
  padding: clamp(1.4rem, 3vw, 2.25rem);
  box-shadow: 0 10px 30px color-mix(in srgb, var(--ink) 4%, transparent);
}

.product-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.7rem 1rem;
  margin-bottom: 0.85rem;
}

.product-head h2 { margin: 0; }

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.22rem 0.65rem;
  border-radius: 999px;
  background: var(--badge);
  color: var(--badge-ink);
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.02em;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15.5rem, 1fr));
  gap: 0.85rem 1rem;
  margin: 1.6rem 0 0;
  padding: 0;
  list-style: none;
}

.features li {
  padding: 0.95rem 1rem;
  border: 1px solid var(--rule);
  border-radius: 0.8rem;
  background: var(--paper);
}

.features strong {
  display: block;
  font-size: 1.02rem;
  margin-bottom: 0.2rem;
}

.features span {
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.5;
}

.fineprint {
  margin: 1.4rem 0 0;
  font-size: 0.98rem;
  color: var(--ink-soft);
}

/* Inner pages */
.page-hero {
  padding: 3.25rem 0 1.5rem;
}

.page-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 2.8rem);
  font-weight: 520;
  letter-spacing: -0.03em;
  line-height: 1.12;
  margin: 0 0 0.6rem;
}

.page-hero .lede { font-size: 1.15rem; }

.page-body {
  padding-bottom: 3.5rem;
}

.page-body h2 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 600;
  margin: 2rem 0 0.6rem;
}

.page-body ul { padding-left: 1.2rem; }

.note {
  margin: 1.25rem 0;
  padding: 0.9rem 1rem;
  border-left: 3px solid var(--copper);
  background: color-mix(in srgb, var(--badge) 55%, var(--paper));
  border-radius: 0 0.5rem 0.5rem 0;
  font-size: 1rem;
}

.note strong { font-weight: 650; }

.contact-block {
  margin-top: 1.5rem;
  padding: 1.25rem 1.35rem;
  border: 1px solid var(--rule);
  border-radius: 0.9rem;
  background: var(--paper-raised);
  max-width: var(--text);
}

.contact-block a { font-weight: 600; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--rule);
  padding: 1.75rem 0 2.1rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  justify-content: space-between;
  align-items: baseline;
}

.site-footer nav ul { gap: 1rem; }

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

.legal { margin: 0; }

@media (max-width: 640px) {
  body { font-size: 1.0625rem; }
  .wrap { width: min(var(--max), calc(100% - 1.6rem)); }
  .site-header .wrap { flex-direction: column; align-items: flex-start; gap: 0.7rem; }
  .hero { padding: 2.75rem 0 2.4rem; }
  .section { padding: 2.4rem 0; }
  nav ul { gap: 1rem; }
}