:root {
  color-scheme: light;
  --paper: #f6f5f0;
  --surface: #fffefa;
  --ink: #172e32;
  --muted: #506165;
  --accent: #176659;
  --soft: #e5eee5;
  --line: #d3dbd3;
  --fast: 150ms;
  --entrance: 450ms;
  --ease: cubic-bezier(.16, 1, .3, 1);
  font-family: 'Segoe UI', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
}
* { box-sizing: border-box; }
body { margin: 0; }
a { color: var(--accent); text-underline-offset: .22em; text-decoration-thickness: 1px; }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; border-radius: 2px; }
a:active { opacity: .65; }
img { display: block; max-width: 100%; }
p, h1, h2, h3 { margin-top: 0; }
h1, h2, h3 { line-height: 1.12; font-weight: 600; text-wrap: balance; }
p { text-wrap: pretty; }
.wrap { width: min(1120px, calc(100% - 64px)); margin-inline: auto; }
.skip { position: absolute; left: 16px; top: -100px; padding: 12px 20px; background: var(--surface); z-index: 10; }
.skip:focus { top: 12px; }
.site-header { border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 96px; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; font-size: 21px; font-weight: 650; letter-spacing: -.7px; }
.brand img { width: 36px; height: 36px; }
.nav { display: flex; flex-wrap: wrap; gap: 8px 24px; }
.nav a, .footer-links a { display: inline-flex; align-items: center; min-height: 44px; color: var(--muted); font-size: 14px; text-decoration: none; position: relative; }
.nav a::after, .footer-links a::after { content: ''; position: absolute; left: 0; right: 0; bottom: 7px; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: left; transition: transform var(--fast) var(--ease); }
.nav a[aria-current='page'] { color: var(--ink); font-weight: 650; }
.nav a[aria-current='page']::after { transform: scaleX(1); }
.eyebrow { font-size: 12px; letter-spacing: .15em; font-weight: 650; text-transform: uppercase; color: var(--accent); margin-bottom: 24px; }
.hero { display: grid; grid-template-columns: 1.18fr 1fr; gap: 64px; align-items: center; padding-block: 96px 88px; }
.hero h1 { font-size: clamp(48px, 5.6vw, 76px); letter-spacing: -.055em; margin-bottom: 28px; }
.hero h1 em { font-style: normal; color: var(--accent); }
.intro { max-width: 540px; font-size: 18px; color: var(--muted); line-height: 1.7; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 14px; padding: 12px 20px; min-height: 48px; background: var(--ink); border: 1px solid var(--ink); border-radius: 6px; color: var(--surface); text-decoration: none; font-size: 14px; font-weight: 600; transition: transform var(--fast) var(--ease), box-shadow var(--fast) var(--ease); }
.button.secondary { color: var(--ink); background: transparent; border-color: var(--line); }
.button:active { transform: scale(.98); }
.button .icon { transition: transform var(--fast) var(--ease); }
.icon { width: 24px; height: 24px; flex-shrink: 0; }
.small-icon { width: 18px; height: 18px; }
.hero-note { margin-top: 20px; font-size: 13px; color: var(--muted); }
.diagram { background: var(--soft); padding: 36px; border-radius: 12px; position: relative; }
.diagram-heading { display: flex; justify-content: space-between; gap: 12px; font-size: 11px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 32px; }
.diagram-box { background: var(--surface); padding: 24px; border: 1px solid var(--line); border-radius: 8px; }
.diagram-label { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; font-size: 15px; font-weight: 650; }
.data-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.data-tags span { border: 1px solid var(--line); border-radius: 4px; padding: 4px 10px; font-size: 12px; }
.diagram-path { display: flex; align-items: center; justify-content: center; gap: 12px; min-height: 90px; color: var(--accent); font-size: 12px; }
.diagram-path::before, .diagram-path::after { content: ''; height: 36px; width: 1px; background: #8aa79b; }
.diagram .caption { margin: 12px 0 0; font-size: 13px; color: var(--muted); }
.section { border-top: 1px solid var(--line); padding-block: 64px; }
.section-heading { display: grid; grid-template-columns: 1fr 1fr; align-items: start; gap: 48px; margin-bottom: 40px; }
.section-heading h2 { font-size: clamp(30px, 3.5vw, 44px); letter-spacing: -.035em; margin: 0; }
.section-heading p { color: var(--muted); margin: 0; max-width: 480px; }
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.feature { padding-top: 24px; border-top: 1px solid var(--line); }
.feature > .icon { color: var(--accent); width: 28px; height: 28px; margin-bottom: 24px; }
.feature h3 { font-size: 20px; margin-bottom: 12px; letter-spacing: -.02em; }
.feature p { color: var(--muted); font-size: 15px; margin: 0; }
.privacy-band { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; background: var(--ink); color: var(--surface); padding: 48px; border-radius: 10px; margin-bottom: 64px; }
.privacy-band h2 { font-size: 34px; letter-spacing: -.03em; margin-bottom: 16px; }
.privacy-band p { color: #d6e2dc; margin-bottom: 0; }
.privacy-band a { color: var(--surface); }
.privacy-band ul { padding-left: 20px; margin-block: 0 24px; }
.privacy-band li { padding-block: 6px; }
.contact { padding-top: 0; border: 0; }
.contact h2 { font-size: 26px; margin-bottom: 12px; }
.contact p { color: var(--muted); max-width: 700px; }
.site-footer { border-top: 1px solid var(--line); padding-block: 24px; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.footer-inner p { margin: 0; color: var(--muted); font-size: 13px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 8px 24px; }
.document-head { padding-block: 64px 44px; max-width: 800px; }
.document-head h1 { font-size: clamp(38px, 5vw, 60px); letter-spacing: -.045em; margin-bottom: 20px; }
.document-head .eyebrow { margin-bottom: 16px; }
.document-head .intro { max-width: 760px; }
.date { font-size: 13px; color: var(--muted); }
.document-layout { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 64px; padding-bottom: 72px; }
.toc { border-top: 1px solid var(--line); padding-top: 20px; align-self: start; }
.toc p { font-weight: 650; font-size: 12px; text-transform: uppercase; letter-spacing: .1em; }
.toc ol { list-style: none; padding: 0; margin: 0; }
.toc a { display: inline-flex; align-items: center; min-height: 44px; text-decoration: none; font-size: 14px; color: var(--muted); }
.prose { min-width: 0; max-width: 760px; }
.prose section { border-top: 1px solid var(--line); padding-top: 28px; margin-bottom: 36px; scroll-margin-top: 24px; }
.prose h2 { font-size: 25px; letter-spacing: -.025em; margin-bottom: 20px; }
.prose h3 { font-size: 18px; margin-block: 24px 12px; }
.prose p, .prose li { color: var(--muted); }
.prose strong { color: var(--ink); font-weight: 650; }
.prose li { margin-bottom: 12px; }
.prose ul, .prose ol { padding-left: 24px; }
.prose code { overflow-wrap: anywhere; font-size: .875em; background: var(--soft); padding: 2px 5px; border-radius: 3px; color: var(--ink); }
.notice { padding: 20px 24px; background: var(--soft); border-left: 3px solid var(--accent); border-radius: 0 6px 6px 0; margin-bottom: 32px; }
.notice p:last-child { margin-bottom: 0; }
@media (hover: hover) {
  a:hover { text-decoration-thickness: 2px; }
  .nav a:hover::after, .footer-links a:hover::after { transform: scaleX(1); }
  .button:hover { transform: translateY(-2px); box-shadow: 0 5px 0 #172e3215; }
  .button:hover .icon { transform: translateX(3px); }
}
@media (prefers-reduced-motion: no-preference) {
  .hero-copy > * { animation: arrive var(--entrance) var(--ease) both; }
  .hero-copy > :nth-child(2) { animation-delay: 50ms; }
  .hero-copy > :nth-child(n+3) { animation-delay: 100ms; }
  .diagram { animation: arrive var(--entrance) var(--ease) 150ms both; }
  .reveal-pending { opacity: 0; transform: translateY(12px); }
  .reveal { transition: opacity var(--entrance) var(--ease), transform var(--entrance) var(--ease); }
  .reveal:nth-child(2) { transition-delay: 50ms; }
  .reveal:nth-child(3) { transition-delay: 100ms; }
  @keyframes arrive { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal-pending { opacity: 1; transform: none; }
  .button:hover, .button:active, .button:hover .icon { transform: none; }
}
@media (max-width: 850px) {
  .hero { gap: 32px; padding-block: 64px; }
  .diagram { padding: 24px; }
  .document-layout { grid-template-columns: 180px minmax(0, 1fr); gap: 32px; }
}
@media (max-width: 650px) {
  .wrap { width: calc(100% - 40px); }
  .header-inner { flex-wrap: wrap; padding-block: 20px 12px; gap: 12px; }
  .nav { width: 100%; justify-content: space-between; gap: 8px; }
  .hero { grid-template-columns: 1fr; padding-block: 48px; gap: 40px; }
  .hero h1 { font-size: clamp(44px, 12vw, 64px); }
  .hero .intro { font-size: 17px; }
  .diagram { padding: 24px; }
  .section { padding-block: 44px; }
  .section-heading, .features, .privacy-band { grid-template-columns: 1fr; gap: 28px; }
  .feature > .icon { margin-bottom: 16px; }
  .privacy-band { padding: 28px; margin-bottom: 44px; }
  .privacy-band h2 { font-size: 30px; }
  .contact { padding-top: 0; }
  .footer-inner { align-items: flex-start; flex-direction: column; gap: 8px; }
  .document-head { padding-block: 44px 24px; }
  .document-layout { grid-template-columns: 1fr; gap: 32px; }
  .toc ol { display: flex; flex-wrap: wrap; gap: 0 20px; }
  .prose h2 { font-size: 23px; }
}
@media print {
  :root { background: white; color: black; }
  .site-header, .site-footer, .toc, .skip { display: none; }
  .wrap { width: 100%; }
  .document-layout { display: block; }
  .prose { max-width: none; }
  .prose section { break-inside: avoid; }
}