:root {
  --blog-ink: #191a17;
  --blog-muted: #62655e;
  --blog-paper: #f4f3ed;
  --blog-line: #d9d8cf;
  --blog-accent: #2c634e;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--blog-paper);
  color: var(--blog-ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
}
a { color: inherit; }

.blog-nav {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid rgba(25, 26, 23, .1);
  background: rgba(244, 243, 237, .92);
  backdrop-filter: blur(16px);
}

.blog-nav__inner,
.blog-index,
.article-shell,
.blog-footer__inner {
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}

.blog-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
}

.blog-brand {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  font-weight: 800;
  text-decoration: none;
}

.blog-brand__mark {
  display: grid;
  width: 1.9rem;
  height: 1.9rem;
  place-items: center;
  border-radius: .5rem;
  background: var(--blog-ink);
  color: #d7f496;
}

.blog-nav__links { display: flex; gap: 1.25rem; }
.blog-nav__links a { color: var(--blog-muted); font-size: .86rem; font-weight: 650; text-decoration: none; }
.blog-nav__links a[href="/#waitlist"] { display: inline-flex; align-items: center; min-height: 44px; white-space: nowrap; }
.blog-nav__links a:hover { color: var(--blog-ink); }

.blog-index { padding: clamp(4rem, 9vw, 8rem) 0; }
.blog-index__header { display: grid; grid-template-columns: 1.25fr .65fr; align-items: end; gap: 3rem; margin-bottom: 4rem; }
.blog-kicker { margin: 0 0 1rem; color: var(--blog-accent); font-size: .74rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.blog-index h1,
.article-header h1 { margin: 0; font-size: clamp(3rem, 8vw, 6.5rem); font-weight: 540; letter-spacing: -.06em; line-height: .94; }
.blog-index__intro { margin: 0; color: var(--blog-muted); font-size: 1.06rem; }

.blog-list { border-top: 1px solid var(--blog-line); }
.blog-list__item {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) 160px 36px;
  align-items: center;
  gap: 1.2rem;
  padding: 1.65rem 0;
  border-bottom: 1px solid var(--blog-line);
  text-decoration: none;
  transition: padding .18s ease, color .18s ease;
}
.blog-list__item:hover { padding-left: .65rem; color: var(--blog-accent); }
.blog-list__number { color: #96978f; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .75rem; }
.blog-list__title { font-size: clamp(1.15rem, 2.4vw, 1.65rem); font-weight: 650; letter-spacing: -.025em; line-height: 1.2; }
.blog-list__meta { color: var(--blog-muted); font-size: .76rem; text-transform: uppercase; letter-spacing: .08em; }
.blog-list__arrow { font-size: 1.35rem; }

.article-shell { display: grid; grid-template-columns: 210px minmax(0, 720px); justify-content: center; gap: clamp(2rem, 6vw, 5rem); padding: clamp(4rem, 9vw, 7rem) 0; }
.article-aside { align-self: start; position: sticky; top: 104px; }
.article-aside p { margin: 0 0 .4rem; color: #8a8c84; font-size: .7rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.article-aside a { display: block; margin-bottom: 1.5rem; color: var(--blog-accent); font-size: .85rem; font-weight: 650; text-decoration: none; }
.article-aside dl { margin: 0; }
.article-aside div { padding: .7rem 0; border-top: 1px solid var(--blog-line); }
.article-aside dt { color: #8a8c84; font-size: .67rem; text-transform: uppercase; letter-spacing: .08em; }
.article-aside dd { margin: .2rem 0 0; font-size: .83rem; }

.article-header { padding-bottom: 2.7rem; border-bottom: 1px solid var(--blog-line); }
.article-header h1 { font-size: clamp(2.8rem, 7vw, 5.6rem); }
.article-deck { margin: 1.5rem 0 0; color: var(--blog-muted); font-size: clamp(1.08rem, 2vw, 1.3rem); line-height: 1.6; }
.article-body { padding-top: 1rem; }
.article-body h2 { margin: 3rem 0 .75rem; font-size: clamp(1.55rem, 3vw, 2.05rem); letter-spacing: -.03em; line-height: 1.2; }
.article-body h3 { margin: 2rem 0 .55rem; font-size: 1.08rem; }
.article-body p,
.article-body li { color: #444740; }
.article-body ul,
.article-body ol { padding-left: 1.3rem; }
.article-body li { margin-bottom: .55rem; }
.article-callout { margin: 2.4rem 0; padding: 1.25rem 1.35rem; border-left: 3px solid var(--blog-accent); background: #e8eee8; }
.article-callout strong { display: block; margin-bottom: .3rem; }
.article-next { margin-top: 3.5rem; padding-top: 1.5rem; border-top: 1px solid var(--blog-line); }
.article-next a { color: var(--blog-accent); font-weight: 750; text-decoration-thickness: 1px; text-underline-offset: 4px; }

.blog-footer { border-top: 1px solid var(--blog-line); background: #ebeae3; }
.blog-footer__inner { display: flex; justify-content: space-between; gap: 1rem; padding: 1.5rem 0; color: var(--blog-muted); font-size: .8rem; }

@media (max-width: 760px) {
  .blog-index__header,
  .article-shell { grid-template-columns: 1fr; }
  .article-aside { position: static; }
  .article-aside dl { display: flex; flex-wrap: wrap; gap: 1rem; }
  .article-aside div { min-width: 120px; }
  .blog-list__item { grid-template-columns: 36px minmax(0, 1fr) 28px; }
  .blog-list__meta { display: none; }
}

@media (max-width: 520px) {
  .blog-nav__links a:first-child { display: none; }
  .blog-index__header { gap: 1.5rem; }
  .blog-footer__inner { flex-direction: column; }
}