:root {
  --spr-paper: #f7f8f5;
  --spr-ink: #101820;
  --spr-silver: #dce1e5;
  --spr-sky: #cde8ff;
  --spr-accent: #9BC9D1;
  --spr-border: #bcc3c8;
  --spr-white: #ffffff;
  --spr-bg-warm: #edf5fa;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--spr-paper);
  color: var(--spr-ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { line-height: 1.05; letter-spacing: -0.04em; font-weight: 700; }
small { font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 600; }
em { font-family: var(--font-serif); font-style: italic; font-weight: 400; }
.skip-link {
  position: absolute; top: -100%; left: 1rem;
  background: var(--spr-ink); color: var(--spr-paper);
  padding: 0.5rem 1rem; border-radius: 4px; z-index: 9999;
}
.skip-link:focus { top: 1rem; }
.site-header {
  height: 72px;
  padding: 0 5vw;
  display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid var(--spr-border);
  background: var(--spr-paper);
  position: sticky; top: 0; z-index: 100;
}
.brand { display: flex; align-items: center; gap: 0.75rem; }
.brand span { font-size: 20px !important; font-weight: 500 !important; letter-spacing: -0.02em !important; line-height: 1.1; white-space: nowrap; }
.brand-mark { width: 36px; height: 36px; }
.nav-links { display: flex; gap: 2rem; font-size: 13px; }
.nav-links a {
  position: relative; padding: 0.25rem 0;
  transition: color 150ms ease;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: 0; left: 0;
  width: 0; height: 1px; background: var(--spr-ink);
  transition: width 300ms ease;
}
.nav-links a:hover::after, .nav-links a:focus::after { width: 100%; }
.nav-links a.current { font-weight: 600; }
.mobile-nav-toggle {
  display: none; flex-direction: column; gap: 4px;
  padding: 0.5rem; cursor: pointer;
}
.mobile-nav-toggle span {
  display: block; width: 20px; height: 2px; background: var(--spr-ink);
}
.hero {
  min-height: calc(100vh - 72px);
  padding: 4rem 5vw;
  position: relative;
  display: flex; align-items: center;
  overflow: hidden;
}
.hero-graphic {
  position: absolute; top: 5%; right: 2%;
  width: clamp(320px, 40vw, 700px);
  height: clamp(320px, 40vw, 700px);
  opacity: 0.08; pointer-events: none;
}
.hero-copy { position: relative; z-index: 1; max-width: 700px; }
.hero small { display: block; margin-bottom: 1.5rem; color: var(--spr-ink-light); }
.hero h1 {
  font-size: clamp(3rem, 6vw, 6rem);
  letter-spacing: -0.06em; margin: 0 0 1.5rem;
  line-height: 0.95;
}
.hero p {
  font-size: 1.25rem; line-height: 1.5;
  max-width: 540px; margin-bottom: 2rem; color: var(--spr-ink-light);
}
.cta-row { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.875rem 1.5rem; font-size: 13px;
  font-weight: 600; border-radius: 100px;
  transition: all 150ms ease;
}
.btn-primary {
  background: var(--spr-ink); color: var(--spr-paper);
}
.btn-primary:hover { background: #2a3a4a; transform: translateY(-1px); }
.btn-secondary {
  background: transparent; color: var(--spr-ink);
  border: 1px solid var(--spr-border);
}
.btn-secondary:hover { border-color: var(--spr-ink); }
.proof-strip {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-block: 1px solid var(--spr-border);
}
.proof-item {
  padding: 1.5rem 2rem;
  border-right: 1px solid var(--spr-border);
  display: flex; flex-direction: column; gap: 0.5rem;
}
.proof-item:last-child { border-right: none; }
.proof-item small { margin-bottom: 0.25rem; }
.proof-item b { font-size: 1.1rem; font-weight: 700; }
.section { padding: 6rem 5vw; }
.section-inner { max-width: 1400px; margin: 0 auto; }
.section-num { font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 600; color: var(--spr-ink-light); margin-bottom: 1rem; display: block; }
.two-col {
  display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start;
}
.businesses-grid {
  display: grid; grid-template-columns: 1.4fr 0.6fr; gap: 1rem;
  margin-top: 2rem;
}
.business-card {
  border-radius: 24px; padding: 2rem;
  display: flex; flex-direction: column;
  min-height: 380px; position: relative; overflow: hidden;
}
.business-card--sd { background: var(--spr-sky); }
.business-card--hz { background: var(--spr-lime); }
.business-card__label { font-size: 11px; margin-bottom: 1rem; }
.business-card h3 {
  font-size: clamp(2.5rem, 4vw, 4rem);
  letter-spacing: -0.05em; line-height: 0.95;
  margin: 0 0 1rem;
}
.business-card p { font-size: 1rem; line-height: 1.5; max-width: 90%; }
.structure-diagram {
  display: flex; flex-direction: column; gap: 0.75rem;
  padding: 2rem;
}
.structure-node {
  padding: 1rem 1.5rem; border-radius: 12px;
  border: 1px solid var(--spr-border); background: var(--spr-white);
}
.structure-node--parent {
  background: var(--spr-ink); color: var(--spr-paper);
  border-color: var(--spr-ink);
}
.structure-node--active { border-color: var(--spr-accent); }
.structure-node--future { opacity: 0.6; border-style: dashed; }
.structure-node h4 { margin: 0 0 0.25rem; font-size: 1.1rem; }
.structure-node p { margin: 0; font-size: 0.875rem; color: var(--spr-ink-light); }
.structure-node--parent p { color: rgba(247,248,245,0.7); }
.cta-section {
  background: var(--spr-ink); color: var(--spr-paper);
  padding: 5rem 5vw; text-align: center;
}
.cta-section h2 { font-size: clamp(2rem, 4vw, 3.5rem); margin-bottom: 1rem; }
.cta-section p { font-size: 1.125rem; opacity: 0.7; max-width: 480px; margin: 0 auto 2rem; }
.content-page {
  padding: 4rem 5vw;
  max-width: 800px; margin: 0 auto;
}
.content-page h1 { font-size: clamp(2.5rem, 5vw, 4rem); margin-bottom: 1.5rem; }
.content-page h2 { font-size: 1.75rem; margin-top: 3rem; margin-bottom: 1rem; }
.content-page p { color: var(--spr-ink-light); margin-bottom: 1rem; }
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 3rem;
  margin-top: 2rem;
}
.contact-item { padding: 1.5rem; background: var(--spr-bg-warm); border-radius: 12px; }
.contact-item h3 { font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 0.5rem; }
.contact-item a { font-size: 1.25rem; }
.site-footer {
  padding: 2rem 5vw;
  display: flex; justify-content: space-between; align-items: flex-start;
  border-top: 1px solid var(--spr-border);
  font-size: 13px; flex-wrap: wrap; gap: 1rem;
}
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { color: var(--spr-ink-light); transition: color 150ms; }
.footer-links a:hover { color: var(--spr-ink); }
.footer-badge {
  font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--spr-ink-light); padding: 0.375rem 0.75rem;
  border: 1px solid var(--spr-border); border-radius: 4px;
}
.progress-bar {
  position: fixed; top: 72px; left: 0; height: 2px;
  background: var(--spr-accent); z-index: 99; width: 0;
}
.mobile-nav {
  display: none; position: fixed; top: 72px; left: 0; right: 0; bottom: 0;
  background: var(--spr-paper); z-index: 90; padding: 2rem;
  flex-direction: column; gap: 1rem;
}
.mobile-nav.open { display: flex; }
.mobile-nav a { font-size: 1.25rem; font-weight: 600; padding: 0.75rem 0; border-bottom: 1px solid var(--spr-border); }
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity 600ms ease, transform 600ms ease; }
.fade-in.is-visible { opacity: 1; transform: none; }
@media (max-width: 900px) {
  .nav-links { display: none; }
  .mobile-nav-toggle { display: flex; }
  .hero { min-height: auto; padding: 3rem 5vw; }
  .hero-graphic { display: none; }
  .proof-strip { grid-template-columns: 1fr 1fr; }
  .proof-item { border-right: none; border-bottom: 1px solid var(--spr-border); }
  .businesses-grid { grid-template-columns: 1fr; }
  .two-col { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  :root { --header-height: 64px; }
  .site-header { height: 64px; }
  .progress-bar { top: 64px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0s !important; }
}