.country-line {
  width: 100%;
  padding: 7px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  text-align: center;
  font: 400 9px/1 var(--mono);
  letter-spacing: .18em;
  text-transform: uppercase;
}
.flag-mark {
  display: inline-block;
  width: 13px;
  height: 4px;
  margin: 0 7px 2px 0;
  border-left: 4px solid #fdb913;
  border-right: 4px solid #c1272d;
  background: #006a44;
}

.site-header {
  display: flex;
  width: var(--page);
  min-height: 76px;
  margin: auto;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--ink);
}
.header-links { display: flex; align-items: center; gap: 34px; }
.header-links a { color: var(--muted); font-size: 13px; font-weight: 600; }
.header-links a:hover { color: var(--blue); }
.github-link { padding-left: 34px; border-left: 1px solid var(--line); }

.hero {
  display: grid;
  width: var(--page);
  min-height: 700px;
  margin: auto;
  padding: 76px 0 92px;
  grid-template-columns: minmax(0, 1.42fr) minmax(360px, .58fr);
  gap: clamp(48px, 8vw, 130px);
  align-items: end;
}
.hero-copy h2 {
  max-width: 850px;
  margin-bottom: 34px;
  font: 600 clamp(54px, 6.25vw, 96px)/.91 var(--display);
  letter-spacing: -.075em;
}
.hero-copy h2 span { color: var(--blue); }
.hero-deck { max-width: 590px; margin-bottom: 40px; color: var(--muted); font-size: 18px; line-height: 1.65; }
.hero-actions { display: flex; align-items: center; gap: 30px; }
.hero-actions p { margin: 0; color: var(--muted); font: 400 11px/1.5 var(--mono); }
.hero-actions p b { color: var(--ink); }
.primary-action {
  display: inline-flex;
  min-height: 52px;
  padding: 0 18px;
  align-items: center;
  gap: 46px;
  color: var(--white);
  background: var(--blue);
  font-size: 13px;
  font-weight: 700;
}
.primary-action:hover { background: var(--blue-dark); }

.loop-card { padding: 26px 0 0; border-top: 7px solid var(--ink); }
.loop-heading { display: flex; justify-content: space-between; }
.loop-heading > span { color: var(--muted); font: 400 10px/1 var(--mono); }
.loop-card h2 { max-width: 330px; margin-bottom: 32px; font: 600 33px/1.1 var(--display); letter-spacing: -.045em; }
.loop-card ol { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.loop-card li { display: grid; padding: 15px 0; grid-template-columns: 44px 1fr; border-bottom: 1px solid var(--line); }
.loop-card li span { color: var(--blue); font: 400 10px/1.7 var(--mono); }
.loop-card li p { margin: 0; font-size: 13px; }
.loop-card li b { font-weight: 700; }
.loop-note { margin: 22px 0 0 44px; color: var(--muted); font-size: 12px; line-height: 1.65; }

.knowledge-shell {
  display: grid;
  width: var(--page);
  margin: auto;
  padding: 105px 0 130px;
  grid-template-columns: 210px minmax(0, 1fr);
  gap: clamp(56px, 9vw, 150px);
  border-top: 1px solid var(--ink);
}
.index-rail { position: sticky; top: 30px; height: max-content; }
.index-rail > p { margin-bottom: 26px; font: 500 10px/1 var(--mono); letter-spacing: .15em; text-transform: uppercase; }
.index-rail nav { display: grid; margin-bottom: 44px; }
.index-rail nav a { padding: 10px 0; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.index-rail nav a:hover { color: var(--blue); padding-left: 5px; }
.progress-block > span { display: block; margin-bottom: 10px; color: var(--muted); font: 400 10px/1 var(--mono); }
.progress-track { height: 3px; background: var(--line); }
.progress-track i { display: block; width: 0; height: 100%; background: var(--blue); transition: width .3s ease; }
.feed-column { min-width: 0; }
.feed-intro { display: grid; margin-bottom: 110px; grid-template-columns: 1.4fr .6fr; gap: 60px; align-items: end; }
.feed-intro h2 { margin: 0; font: 600 clamp(44px, 5vw, 72px)/.98 var(--display); letter-spacing: -.065em; }
.feed-intro h2 em { color: var(--blue); font-style: normal; }
.feed-intro > p { max-width: 320px; margin: 0; color: var(--muted); font-size: 13px; }