/* reset, typography, layout primitives */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 var(--fs-base)/var(--lh-body) var(--font-sans);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; min-height: 100vh;
  display: flex; flex-direction: column; }
main { flex: 1 0 auto; }
img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration-color: var(--line-strong); text-underline-offset: .2em; text-decoration-thickness: 1px; }
a:hover { text-decoration-color: currentColor; }
h1, h2, h3, h4 { font-family: var(--font-serif); font-weight: 400; line-height: var(--lh-snug); margin: 0 0 var(--s-3);
  letter-spacing: -.012em; text-wrap: balance; font-variation-settings: "opsz" 72; }
h1 { font-size: var(--fs-3xl); line-height: var(--lh-tight); }
h2 { font-size: var(--fs-2xl); line-height: 1.15; }
h3 { font-size: var(--fs-xl); }
h4 { font-size: var(--fs-lg); }
p { margin: 0 0 var(--s-4); text-wrap: pretty; }
ul, ol { margin: 0 0 var(--s-4); padding-left: 1.25em; }
hr { border: 0; border-top: 1px solid var(--line); margin: var(--s-6) 0; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 3px; }
::selection { background: var(--accent); color: #fff; }

.skip-link { position: absolute; left: var(--s-4); top: -100px; z-index: 100; background: var(--ink); color: var(--bg);
  padding: var(--s-3) var(--s-4); border-radius: var(--r-sm); text-decoration: none; }
.skip-link:focus { top: var(--s-3); }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

.container { width: 100%; max-width: calc(var(--maxw) + 2 * var(--gutter)); margin-inline: auto; padding-inline: var(--gutter); }
.container--narrow { max-width: calc(var(--maxw-narrow) + 2 * var(--gutter)); /* left edge aligned with the wide container above */
  margin-inline: max(0px, calc((100% - var(--maxw) - 2 * var(--gutter)) / 2)) auto; }
.section { padding-block: var(--s-9); }
.section--tight { padding-block: var(--s-8); }
.section--tint { background: var(--bg-deep); }
.stack > * + * { margin-top: var(--s-4); }
.muted { color: var(--mute); }
.center { text-align: center; }
.lead { font-size: var(--fs-lg); line-height: 1.5; color: var(--ink-2); max-width: 58ch; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important;
    transition-duration: .001ms !important; }
}