:root {
  --bg: #0a0e13; --bg2: #0d1117; --panel: #161b22;
  --border: #303b49; --border2: #25303c;
  --fg: #e9eef5; --muted: #b2becb; --faint: #98a7b8;
  --blue: #79baff; --green: #7ee787; --amber: #e3b341;
  --display: "Fraunces", Georgia, "Times New Roman", serif;
  --body: "Newsreader", Georgia, serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; color: var(--fg); background: var(--bg);
  font: 1.125rem/1.6 var(--body); -webkit-font-smoothing: antialiased;
  background-image: radial-gradient(ellipse at 85% 0, #10232c 0, transparent 32rem);
}
a { color: var(--blue); text-decoration-thickness: 1px; text-underline-offset: .22em; }
a:hover { color: var(--green); }
::selection { background: #254b68; color: white; }
:focus-visible { outline: 2px solid var(--green); outline-offset: 5px; }
.wrap { width: min(100% - 3.5rem, 1160px); margin-inline: auto; }
.skip-link { position: fixed; top: -8rem; left: 1rem; z-index: 100; padding: .6rem 1rem; background: var(--panel); }
.skip-link:focus { top: 1rem; }
nav {
  position: sticky; top: 0; z-index: 30; background: rgba(10,14,19,.96);
  border-bottom: 1px solid var(--border2); backdrop-filter: blur(12px);
}
nav .wrap { display: flex; align-items: center; gap: 1.15rem; min-height: 4.25rem; }
.mark { display: inline-flex; align-items: center; gap: .35rem; font: 900 1.4rem var(--display); color: var(--fg); text-decoration: none; white-space: nowrap; }
.mark img { margin-right: .2rem; }
.mark span, h1 span { color: var(--green); }
.grow { flex: 1; }
.navlink, .cta, .site-menu { font: .875rem/1.5 var(--mono); }
.navlink { text-decoration: none; color: var(--muted); }
.cta { padding: .55rem .85rem; background: var(--green); color: #07120a; border-radius: .4rem; font-weight: 600; text-decoration: none; white-space: nowrap; }
.cta:hover { background: #a1f0a8; color: #07120a; }
.site-menu { position: relative; }
.site-menu summary { cursor: pointer; padding: .6rem .1rem; color: var(--fg); }
.menu-links { position: absolute; right: 0; top: calc(100% + .5rem); width: min(19rem, calc(100vw - 3.5rem)); padding: .6rem; border: 1px solid var(--border); background: var(--panel); border-radius: .65rem; box-shadow: 0 18px 45px #0008; max-height: 65vh; overflow-y: auto; }
.menu-links a { display: block; padding: .65rem .75rem; text-decoration: none; color: var(--fg); border-radius: .3rem; }
.menu-links a:hover, .menu-links a:focus-visible { background: #253747; }
.hero { padding: 4.8rem 0 4rem; }
.hero-grid { display: grid; grid-template-columns: .92fr 1.08fr; gap: 3.5rem; align-items: center; }
.hero-copy, .hero-example, .feature, .resource-grid > *, .study-grid > *, .status-grid > *, .inventory-grid > * { min-width: 0; }
.eyebrow, .feature-number { font: .8125rem/1.6 var(--mono); color: var(--green); letter-spacing: .1em; text-transform: uppercase; margin: 0 0 1rem; }
h1 { font: 900 clamp(4.5rem, 8vw, 7.5rem)/1 var(--display); letter-spacing: -.035em; margin: 0 0 1.6rem; }
.tagline { font: 600 clamp(1.8rem, 3vw, 2.5rem)/1.2 var(--display); letter-spacing: -.025em; margin: 0 0 1.4rem; }
.tagline em { color: var(--green); font-style: normal; }
.subhead { font-size: 1.2rem; color: var(--muted); max-width: 43ch; margin: 0 0 1.7rem; }
.actions { display: flex; flex-wrap: wrap; gap: .8rem; margin: 1.5rem 0; }
.button { display: inline-flex; align-items: center; justify-content: center; padding: .75rem 1rem; font: 500 .875rem/1.5 var(--mono); color: var(--fg); border: 1px solid var(--border); border-radius: .5rem; text-decoration: none; }
.button:hover { border-color: var(--green); }
.button.primary { background: var(--green); color: #07120a; border-color: var(--green); }
.button.primary:hover { background: #a1f0a8; }
.hero-note { font-size: 1rem; color: var(--muted); max-width: 43ch; }
.text-link, .section-links { font: .875rem/1.65 var(--mono); }
.section { padding: 4rem 0; border-top: 1px solid var(--border2); }
[id] { scroll-margin-top: 7.5rem; }
.anchor { display: block; height: 0; }
h2 { font: 600 clamp(2rem, 4vw, 3rem)/1.12 var(--display); letter-spacing: -.025em; margin: 0 0 1.1rem; max-width: 28ch; }
h3 { font: 600 1.5rem/1.2 var(--display); letter-spacing: -.015em; margin: 0 0 .85rem; }
p { margin: 0 0 1rem; }
.section-intro { max-width: 72ch; color: var(--muted); font-size: 1.2rem; margin-bottom: 2.2rem; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.6rem; list-style: none; padding: 0; margin: 2.5rem 0 2rem; }
.steps li { border-top: 2px solid #3d6552; padding-top: .8rem; }
.step-number { color: var(--green); font: .875rem var(--mono); display: block; margin-bottom: .8rem; }
.steps h3 { font-size: 1.25rem; }
.steps p { color: var(--muted); font-size: 1.0625rem; }
.interpretation { padding: 1.2rem 1.5rem; border-left: 3px solid var(--blue); background: #10202b; color: #c8d5e2; font-size: 1.0625rem; }
.interpretation strong { color: var(--fg); }
code { font: .87em var(--mono); color: #cde8ff; }
.features { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 3rem 2.5rem; }
.feature { padding-top: 1.3rem; border-top: 1px solid var(--border); }
.feature > p { color: var(--muted); }
.feature > .feature-number { color: var(--green); }
.example { margin: 1.3rem 0; border: 1px solid var(--border); border-radius: .7rem; overflow: hidden; background: #0c1320; }
.example figcaption { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: .45rem .9rem; padding: .8rem 1rem; border-bottom: 1px solid var(--border); background: #17212d; font: .8125rem/1.5 var(--mono); }
.example figcaption a { font-size: .8125rem; }
.example pre { margin: 0; padding: 1rem; overflow-x: auto; white-space: pre; tab-size: 4; font: .875rem/1.65 var(--mono); }
.example pre code, .example pre samp { font: inherit; color: var(--fg); }
.example .k { color: #ffb084; }
.example .s { color: #a5d6ff; }
.example .n { color: #d2a8ff; }
.output-label { font: .75rem var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--green); padding: .8rem 1rem 0; border-top: 1px solid var(--border2); background: #0c1917; }
.example .output { background: #0c1917; padding-top: .55rem; }
.example .output samp { color: #c7e4ce; }
.example-note { font-size: 1rem; }
.study-grid, .resource-grid, .status-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 2rem; }
.study { border-top: 2px solid var(--green); padding: 1.4rem 0 0; }
.study h3 a { color: var(--fg); text-decoration: none; }
.study h3 a:hover { color: var(--green); }
.study p, .resource-grid p, .status-grid p, .inventory p { color: var(--muted); }
.study .feature-number { color: var(--green); }
.section-links { display: flex; flex-wrap: wrap; gap: 1rem 2rem; margin-top: 2rem; }
.resource-grid { margin-top: 2rem; }
.status-grid { margin-top: 2rem; margin-bottom: 1rem; }
.status-grid h3 { font-size: 1.25rem; }
.status-grid p { font-size: 1.0625rem; }
.inventory { border-top: 1px solid var(--border); margin-top: 2rem; padding-top: 1.2rem; }
.inventory summary { cursor: pointer; color: var(--fg); font: 500 1rem/1.7 var(--mono); }
.inventory-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1.5rem 2.5rem; padding-top: 1.8rem; }
.inventory-grid h3 { font-size: 1.25rem; }
.philosophy { background: linear-gradient(135deg, #0e1c22, transparent); }
.philosophy-grid { display: grid; grid-template-columns: .75fr 1fr; gap: 4rem; }
.philosophy h2 em { color: var(--green); }
.philosophy p { color: var(--muted); }
.philosophy .eyebrow { color: var(--green); }
footer { border-top: 1px solid var(--border); padding: 2.5rem 0; }
.footer-links { display: flex; gap: .6rem 1.4rem; flex-wrap: wrap; margin: 1.3rem 0; font: .875rem var(--mono); }
.credit { font-size: 1rem; color: var(--muted); margin: 1.8rem 0 0; }
@media (max-width: 1150px) {
  nav .navlink { display: none; }
  nav .axs-box { flex: 1; }
}
@media (max-width: 900px) {
  .hero { padding-top: 3rem; }
  .hero-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .hero-copy { max-width: 42rem; }
  .hero-example { max-width: 46rem; width: 100%; }
  .steps { grid-template-columns: repeat(2,1fr); }
  .features { gap: 2rem 1.5rem; }
  .study-grid, .resource-grid, .status-grid { grid-template-columns: 1fr; gap: 1.4rem; }
  .study p, .resource-grid p, .status-grid p { max-width: 70ch; }
}
@media (max-width: 650px) {
  .wrap { width: calc(100% - 2.5rem); }
  .features, .inventory-grid, .philosophy-grid { grid-template-columns: 1fr; }
  .section { padding-block: 2.7rem; }
  .philosophy-grid { gap: 1rem; }
  .hero { padding-top: 2.5rem; padding-bottom: 2rem; }
  .example pre { font-size: .875rem; }
}
@media (max-width: 620px) {
  nav .wrap { flex-wrap: wrap; min-height: 0; gap: .6rem; padding-block: .6rem; }
  nav .grow { display: none; }
  .mark { font-size: 1.2rem; gap: .12rem; }
  .mark img { width: 22px; height: 22px; }
  nav .site-menu { margin-left: auto; }
  nav .cta { font-size: .8125rem; }
  .site-menu summary { font-size: .8125rem; }
  .menu-links { right: -6rem; width: min(19rem, calc(100vw - 2.5rem)); }
}
@media (max-width: 400px) {
  .steps { grid-template-columns: 1fr; gap: 1rem; }
  .example figcaption { padding-inline: .8rem; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
@media print {
  body { background: white; color: #111; }
  nav, .actions, .skip-link, .example figcaption a, footer { display: none; }
  .wrap { width: 100%; }
  .hero, .section { padding: 1rem 0; }
  .hero-grid, .features, .philosophy-grid { display: block; }
  .example, .output-label, .example .output, .example figcaption, .interpretation { background: white; color: #111; box-shadow: none; }
  .example pre { white-space: pre-wrap; overflow-wrap: anywhere; }
  .example pre code, .example pre samp, .example span, p, .feature p, .steps p, .study p, .resource-grid p, .status-grid p, .philosophy p { color: #111; }
  .example, .study { break-inside: avoid; }
}