:root {
  color-scheme: light;
  --font-display: Inter, "Helvetica Neue", Arial, sans-serif;
  --font-record: Georgia, "Times New Roman", serif;
  --color-paper: #f6f3ee;
  --color-paper-raised: #fbfaf7;
  --color-ink: #2b2b2b;
  --color-ink-soft: #5f6962;
  --color-sage: #a7d7c5;
  --color-sage-deep: #54695c;
  --color-mint: #cfe7d6;
  --color-line: rgb(43 43 43 / 0.16);
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --radius-control: 0.25rem;
  --radius-card: 0.7rem;
  --shadow-card: 0 1.5rem 4rem rgb(35 39 35 / 0.13);
  --blur-atmosphere: 18px;
  --motion-fast: 180ms;
  --motion-slow: 720ms;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --opacity-muted: 0.64;
  --z-overlay: 20;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { min-width: 320px; background: var(--color-paper); scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  min-height: 100dvh;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-display);
  -webkit-font-smoothing: antialiased;
}
body::after {
  position: fixed;
  z-index: -1;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.74' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.17'/%3E%3C/svg%3E");
  content: '';
  opacity: 0.025;
  pointer-events: none;
}
a { color: inherit; text-underline-offset: 0.22em; }
button, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 2px solid #385245; outline-offset: 4px; }
[hidden] { display: none !important; }

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  color: #26372e;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.26em;
  text-decoration: none;
}
.site-brand img { display: block; width: 2.5rem; height: 2.5rem; border-radius: 0.72rem; }
.quiet-link { color: var(--color-ink-soft); text-decoration-color: transparent; transition: color var(--motion-fast), text-decoration-color var(--motion-fast); }
.quiet-link:hover, .quiet-link:focus-visible { color: var(--color-ink); text-decoration-color: currentColor; }

.document-shell {
  display: grid;
  grid-template-columns: minmax(13rem, 18rem) minmax(0, 47rem);
  gap: clamp(3rem, 8vw, 8rem);
  width: min(calc(100% - 3rem), 78rem);
  margin: 0 auto;
  padding: clamp(2rem, 5vw, 4rem) 0 6rem;
}
.document-aside { position: sticky; top: 2rem; align-self: start; }
.document-aside .site-brand { margin-bottom: 4.5rem; }
.document-kicker { margin: 0 0 0.7rem; color: var(--color-sage-deep); font-size: 0.7rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; }
.document-title { max-width: 12ch; margin: 0; font-size: clamp(2.5rem, 6vw, 5.25rem); font-weight: 480; letter-spacing: -0.065em; line-height: 0.95; }
.document-deck { max-width: 38rem; margin: 1.4rem 0 0; color: var(--color-ink-soft); font-family: var(--font-record); font-size: clamp(1rem, 1.8vw, 1.25rem); line-height: 1.55; }
.document-meta { margin: 1.2rem 0 0; color: var(--color-ink-soft); font-size: 0.8rem; }
.document-content { padding-top: clamp(5rem, 12vw, 8rem); }
.document-content section { padding: 0.4rem 0 2.4rem; border-top: 1px solid var(--color-line); }
.document-content h2 { margin: 1.65rem 0 0.8rem; font-size: 1.12rem; font-weight: 680; letter-spacing: -0.02em; }
.document-content p, .document-content li { font-family: var(--font-record); font-size: 1.02rem; line-height: 1.72; }
.document-content ul { padding-left: 1.3rem; }
.document-toc { margin-top: 2.8rem; }
.document-toc button { display: none; }
.document-toc ol { display: grid; gap: 0.62rem; margin: 0; padding: 0; list-style: none; }
.document-toc a { color: var(--color-ink-soft); font-size: 0.75rem; text-decoration: none; }
.document-toc a:hover, .document-toc a:focus-visible { color: var(--color-ink); }
.document-footer { display: flex; flex-wrap: wrap; gap: 1rem 1.5rem; margin-top: 2.8rem; padding-top: 1.5rem; border-top: 1px solid var(--color-line); font-size: 0.78rem; }

@media (max-width: 767px) {
  .document-shell { display: block; width: min(calc(100% - 2rem), 47rem); padding-top: 1.4rem; }
  .document-aside { position: static; }
  .document-aside .site-brand { margin-bottom: 3.5rem; }
  .document-toc { margin-top: 2rem; border-block: 1px solid var(--color-line); }
  .document-toc button { display: flex; justify-content: space-between; width: 100%; padding: 0.9rem 0; border: 0; background: none; color: var(--color-ink); }
  .document-toc ol { padding: 0 0 1rem; }
  .document-toc:not(.is-open) ol { display: none; }
  .document-content { padding-top: 3.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}