:root {
  color-scheme: dark;
  --bg: #080a0e;
  --grid: rgba(255,255,255,.032);
  --ink: #e9edf3;
  --ink-2: #98a3b1;
  --muted: #59636f;
  --rule: #1b212a;
  --panel: rgba(13,16,22,.84);
  --copper: #cf8748;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; min-height: 100%; }
body {
  background-color: var(--bg);
  background-image: linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size: 28px 28px;
  color: var(--ink);
  font-family: ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }
main { min-height: calc(100vh - 58px); }
.hero,.projects,.article-shell,footer { max-width: 52rem; width: 100%; margin: 0 auto; }
.hero {
  min-height: 100vh;
  padding: 48px 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
}

h1,h2,h3,p { margin-top: 0; }
h1,h2,h3,.eyebrow,.project-number,.read-more,.article-nav,footer {
  font-family: ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
}
h1 { font-size: clamp(2.6rem,9vw,4.2rem); font-weight: 600; letter-spacing: -.05em; line-height: 1.02; margin-bottom: 26px; }
.tail { color: var(--copper); }
.intro,.lede { font-size: clamp(1.05rem,2.6vw,1.2rem); color: var(--ink-2); max-width: 34rem; }
.scroll-cue { position: absolute; bottom: 30px; text-decoration: none; color: var(--muted); font: .72rem ui-monospace,monospace; letter-spacing: .14em; text-transform: uppercase; }
.scroll-cue:hover,.article-nav a:hover { color: var(--copper); }

.projects { padding: 96px 24px 128px; border-top: 1px solid var(--rule); }
.eyebrow,.project-number { color: var(--copper); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; }
.projects h2 { font-size: clamp(1.7rem,5vw,2.4rem); letter-spacing: -.035em; margin-bottom: 42px; }
.project-card {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 34px;
  padding: 32px;
  border: 1px solid var(--rule);
  background: var(--panel);
  text-decoration: none;
  transition: border-color .18s ease,transform .18s ease;
}
.project-card:hover { border-color: var(--copper); transform: translateY(-2px); }
.project-card h3 { font-size: 1.35rem; line-height: 1.25; letter-spacing: -.025em; }
.project-card p { color: var(--ink-2); }
.project-number { color: var(--muted) !important; }
.read-more { color: var(--copper); font-size: .8rem; }
.project-sketch { width: 100%; color: #788492; align-self: center; }

.article-shell { padding: 28px 24px 120px; }
.article-nav { display: flex; justify-content: space-between; color: var(--muted); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; }
.article-nav a { text-decoration: none; }
.article-header { padding: 110px 0 70px; }
.article-header h1 { max-width: 44rem; }
.lede { max-width: 40rem; }
.system-sketch { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr; align-items: center; gap: 13px; padding: 24px; border: 1px solid var(--rule); background: var(--panel); margin-bottom: 96px; }
.system-sketch div { display: flex; flex-direction: column; }
.system-sketch strong { color: var(--copper); font: .68rem ui-monospace,monospace; }
.system-sketch span { font-weight: 600; }
.system-sketch small { color: var(--muted); }
.system-sketch i { color: var(--muted); font-style: normal; }
.article-section { border-top: 1px solid var(--rule); padding: 48px 0; }
.article-section h2 { font-size: 1.25rem; letter-spacing: -.02em; margin-bottom: 30px; }
.parts { display: grid; grid-template-columns: 1fr 1fr; gap: 26px 38px; }
.parts div { display: grid; grid-template-columns: 28px 1fr; gap: 10px; }
.parts span { color: var(--copper); font: .7rem ui-monospace,monospace; padding-top: 3px; }
.parts p,.text-block p { color: var(--ink-2); margin: 0; }
.text-block { display: grid; grid-template-columns: 1fr 2fr; gap: 40px; }
.technical-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 24px; margin-bottom: 30px; }
.technical-heading h2,.technical-heading p { margin-bottom: 0; }
.technical-grid { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--rule); border-left: 1px solid var(--rule); }
.technical-item { padding: 28px; border-right: 1px solid var(--rule); border-bottom: 1px solid var(--rule); background: var(--panel); }
.technical-item > span { display: block; color: var(--copper); font: .68rem ui-monospace,monospace; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 16px; }
.technical-item h3 { font-size: 1rem; letter-spacing: -.02em; margin-bottom: 12px; }
.technical-item p { color: var(--ink-2); font-size: .93rem; margin: 0; }
.flow-code { margin: 24px 0 0; padding: 24px; overflow-x: auto; border: 1px solid var(--rule); background: #06080b; color: #aeb7c4; font: .78rem/1.8 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace; }
.status-note { margin-top: 48px; padding: 18px 20px; border: 1px solid var(--rule); color: var(--ink-2); font-size: .9rem; }
.status-dot { display: inline-block; width: 7px; height: 7px; margin-right: 10px; border-radius: 50%; background: #67b279; box-shadow: 0 0 0 4px rgba(103,178,121,.1); }
.status-note strong { color: var(--ink); }

footer { border-top: 1px solid var(--rule); padding: 16px 24px calc(16px + env(safe-area-inset-bottom,0px)); display: flex; justify-content: space-between; color: var(--muted); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; }

@media (max-width: 680px) {
  .project-card { grid-template-columns: 1fr; padding: 24px; }
  .project-sketch { max-width: 430px; }
  .system-sketch { grid-template-columns: 1fr; gap: 8px; }
  .system-sketch i { transform: rotate(90deg); width: max-content; }
  .parts { grid-template-columns: 1fr; }
  .text-block { grid-template-columns: 1fr; gap: 12px; }
  .technical-heading { display: block; }
  .technical-heading .eyebrow { margin-bottom: 10px; }
  .technical-grid { grid-template-columns: 1fr; }
  .technical-item { padding: 24px; }
  .flow-code { font-size: .68rem; padding: 18px; }
  .article-header { padding-top: 80px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .project-card { transition: none; }
}