@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root {
  --bg: #101513;
  --surface: #17201c;
  --surface-soft: #1c2822;
  --border: #2b3a31;
  --text: #e8efe6;
  --muted: #9eafa2;
  --green: #a8e063;
  --green-soft: #c8ef92;
  --max-width: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 1rem/1.6 'DM Sans', system-ui, sans-serif;
}

a { color: var(--green-soft); }
a:hover { color: var(--green); }

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
}

.site-header,
.site-main,
.site-footer {
  width: min(calc(100% - 40px), var(--max-width));
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font: 600 .75rem/1.25 'IBM Plex Mono', monospace;
  letter-spacing: .06em;
  text-decoration: none;
  text-transform: uppercase;
}

.brand-mark {
  display: grid;
  width: 30px;
  height: 30px;
  padding: 4px;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 50%;
}

.brand-mark img { width: 100%; height: 100%; object-fit: contain; }
.brand-accent { color: var(--green); }

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font: .7rem 'IBM Plex Mono', monospace;
  text-transform: uppercase;
}

.site-nav a { color: var(--muted); text-decoration: none; }
.site-nav a:hover,
.site-nav a[aria-current='page'] { color: var(--green); }
.external::after { content: ' ↗'; }

.site-main { padding: 64px 0 84px; }
.eyebrow,
.mono-label,
.meta,
.status,
.feature-meta,
.row-type,
.article-meta {
  font-family: 'IBM Plex Mono', monospace;
}

.eyebrow,
.eyebrow {
  color: var(--green);
  font-size: .7rem;
  letter-spacing: .09em;
  text-transform: uppercase;
}

h1, h2, h3 { margin: 0; line-height: 1.1; }
h1, h2 { letter-spacing: -.04em; }
h1, h2, h3 { font-weight: 600; }

.page-intro p {
  max-width: 650px;
  color: var(--muted);
  font-size: 1.12rem;
}
.about-layout { display: grid; grid-template-columns: 1.5fr .7fr; gap: 16px; margin-top: 22px; }
.about-card,
.about-card { border: 1px solid var(--border); background: var(--surface); }

.page-intro { max-width: 780px; padding-bottom: 64px; }
.page-intro h1 { margin: 14px 0 20px; font-size: clamp(2.75rem, 6vw, 4.8rem); }

.archive-list { max-width: 780px; }
.archive-row { display: block; padding: 0; color: var(--text); text-decoration: none; }
.archive-row time { display: block; margin-bottom: 12px; color: var(--green); font: .68rem/1.5 'IBM Plex Mono', monospace; text-transform: uppercase; }
.archive-row h2 { margin-bottom: 10px; color: var(--text); font-size: clamp(1.5rem, 3vw, 2.2rem); }
.archive-row p { max-width: 680px; margin: 0; color: var(--muted); font-size: .9rem; }
.archive-row:hover h2 { color: var(--green); }

.articles-page .site-header { border-bottom: 0; }
.articles-page .page-intro { padding-bottom: 52px; }
.articles-page .site-footer { border-top: 0; }

.about-card { padding: clamp(22px, 4vw, 42px); }
.about-card h2 { margin: 10px 0 18px; font-size: clamp(1.8rem, 4vw, 2.8rem); }
.about-card p { max-width: 650px; margin: 0 0 18px; color: var(--muted); font-size: 1rem; }
.about-card p:last-child { margin-bottom: 0; }
.about-aside { display: grid; gap: 12px; }

.article-shell { max-width: 740px; margin: 0 auto; }
.article-header { padding-bottom: 32px; border-bottom: 1px solid var(--border); }
.article-header h1 { max-width: 820px; margin: 14px 0 20px; font-size: clamp(2.45rem, 5.5vw, 4.5rem); }
.article-deck { max-width: 680px; margin: 0; color: var(--muted); font-size: 1.08rem; }
.article-meta { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 24px; color: var(--muted); font-size: .67rem; text-transform: uppercase; }
.article-body { padding-top: 30px; }
.article-body h2 { margin: 42px 0 12px; font-size: 1.9rem; }
.article-body h3 { margin: 26px 0 8px; color: var(--green); font-size: 1.2rem; }
.article-body p { margin: 0 0 16px; color: var(--muted); font-size: 1rem; }
.article-body .note { padding-left: 16px; border-left: 2px solid var(--green); color: var(--text); }
.article-body code { padding: 2px 4px; color: var(--green-soft); background: rgba(168,224,99,.08); font: .86em 'IBM Plex Mono', monospace; }
.article-body pre { overflow-x: auto; margin: 22px 0; padding: 16px; border: 1px solid var(--border); background: #0b100e; color: #d9e7d3; font: .75rem/1.6 'IBM Plex Mono', monospace; }
.article-body pre code { padding: 0; background: transparent; }

.site-footer { display: flex; justify-content: space-between; gap: 20px; padding: 18px 0 28px; border-top: 1px solid var(--border); color: var(--muted); font: .65rem 'IBM Plex Mono', monospace; text-transform: uppercase; }
.site-footer a { text-decoration: none; }
.social-links { display: flex; align-items: center; gap: 7px; }
.social-link { display: grid; width: 27px; height: 27px; place-items: center; border: 1px solid var(--border); color: var(--muted); font: 600 .72rem 'IBM Plex Mono', monospace; text-decoration: none; text-transform: none; }
.social-link:hover { border-color: var(--green); color: var(--bg); background: var(--green); }
.social-link.x { font-size: .9rem; }

@media (max-width: 850px) {
  .site-main { padding: 54px 0 72px; }
  .page-intro { padding-bottom: 48px; }
  .about-layout { grid-template-columns: 1fr; gap: 28px; }
}

@media (max-width: 620px) {
  .site-header, .site-main, .site-footer { width: min(calc(100% - 32px), var(--max-width)); }
  .site-header { align-items: flex-start; flex-direction: column; }
  .site-main { padding-top: 52px; }
  .archive-row { grid-template-columns: 1fr; gap: 8px; }
  .site-footer { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }