:root {
  --cg-surface: #eaf3f6;
  --cg-panel: #f7fbfc;
  --cg-ink: #171229;
  --cg-muted: #626b77;
  --cg-rule: #abc6d0;
  --cg-cyan: #197f92;
  --cg-aubergine: #2b174b;
  --cg-lime: #a8c64a;
  --cg-warn: #c65f3f;
  --cg-shadow: rgba(23, 18, 41, 0.12);
  --cg-display: Eurostile, 'Bank Gothic', 'Bahnschrift SemiCondensed', Bahnschrift, 'Aptos Display', 'Segoe UI', sans-serif;
  --cg-body: 'IBM Plex Sans', Aptos, 'Segoe UI', Verdana, sans-serif;
  --cg-mono: 'IBM Plex Mono', 'Roboto Mono', Consolas, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--cg-surface);
  color: var(--cg-ink);
  font-family: var(--cg-body);
  line-height: 1.48;
  font-size: 16px;
}

a { color: inherit; text-decoration-thickness: 0.08em; text-underline-offset: 0.18em; }

.cg-topline,
.cg-home,
.cg-article-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.cg-frequency-band {
  margin-top: 18px;
  border: 1px solid var(--cg-rule);
  border-bottom: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: #dcebf0;
  color: var(--cg-aubergine);
  font-family: var(--cg-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.cg-frequency-band span {
  padding: 10px 12px;
  border-right: 1px solid var(--cg-rule);
}

.cg-frequency-band span:last-child { border-right: 0; }

.cg-mast {
  background: var(--cg-panel);
  border: 1px solid var(--cg-rule);
  padding: clamp(26px, 5vw, 58px);
  position: relative;
  box-shadow: 0 16px 44px var(--cg-shadow);
}

.cg-mast:after {
  content: '';
  position: absolute;
  right: 22px;
  top: 20px;
  width: 84px;
  height: 84px;
  border-left: 2px solid var(--cg-cyan);
  border-bottom: 2px solid var(--cg-cyan);
  box-shadow: -14px 14px 0 -12px var(--cg-lime), -28px 28px 0 -26px var(--cg-warn), -42px 42px 0 -40px var(--cg-cyan);
}

.cg-kicker,
.cg-section-code,
.cg-byline,
.cg-packet-date,
.cg-article-source,
.cg-article-meta,
.cg-register h2 {
  font-family: var(--cg-mono);
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-size: 11px;
}

.cg-kicker,
.cg-section-code { color: var(--cg-cyan); margin: 0 0 12px; }

.cg-mast h1 {
  font-family: var(--cg-display);
  font-size: clamp(44px, 9vw, 112px);
  line-height: 0.86;
  letter-spacing: -0.065em;
  max-width: 920px;
  margin: 0;
  text-transform: uppercase;
}

.cg-description {
  max-width: 760px;
  font-size: clamp(18px, 2.2vw, 25px);
  margin: 24px 0 0;
  color: #2d3440;
}

.cg-byline { margin: 26px 0 0; color: var(--cg-muted); }

.cg-home { padding: 18px 0 64px; }

.cg-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(260px, 0.8fr);
  gap: 18px;
  margin-top: 18px;
}

.cg-hero-copy,
.cg-instrument-bay,
.cg-ancestry,
.cg-feature,
.cg-loadtest,
.cg-packet a,
.cg-register,
.cg-article-header,
.cg-article-body {
  background: var(--cg-panel);
  border: 1px solid var(--cg-rule);
}

.cg-hero-copy { padding: clamp(24px, 4vw, 42px); }
.cg-hero-copy h2,
.cg-ancestry h2,
.cg-feature h2,
.cg-loadtest h2,
.cg-posts h2,
.cg-packet h2,
.cg-article-header h1 {
  font-family: var(--cg-display);
  letter-spacing: -0.045em;
  text-transform: uppercase;
  line-height: 0.98;
}

.cg-hero-copy h2 { font-size: clamp(34px, 5.5vw, 68px); margin: 0 0 18px; max-width: 780px; }
.cg-hero-copy p:last-child { max-width: 700px; font-size: 18px; color: #33404a; }

.cg-instrument-bay { padding: 0; align-self: stretch; }
.cg-bay-header {
  padding: 13px 16px;
  border-bottom: 1px solid var(--cg-rule);
  font-family: var(--cg-display);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--cg-aubergine);
}

.cg-chip-panel { padding: 16px; display: flex; flex-wrap: wrap; gap: 8px; align-content: start; }
.cg-chip-panel a,
.cg-chip-panel span {
  display: inline-block;
  border: 1px solid var(--cg-rule);
  padding: 7px 9px;
  font-size: 13px;
  background: #edf7f9;
}

.cg-ancestry { margin-top: 18px; padding: clamp(22px, 4vw, 34px); }
.cg-ancestry h2 { font-size: clamp(25px, 3.8vw, 46px); margin: 0 0 22px; max-width: 820px; }
.cg-ancestry-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-top: 2px solid var(--cg-aubergine);
}
.cg-ancestry-row span {
  padding: 14px 12px;
  border-right: 1px solid var(--cg-rule);
  border-bottom: 1px solid var(--cg-rule);
  font-family: var(--cg-mono);
  font-size: 12px;
  color: #36404c;
}
.cg-ancestry-row span:nth-child(2) { border-top: 6px solid var(--cg-lime); }
.cg-ancestry-row span:nth-child(4) { border-top: 6px solid var(--cg-warn); }
.cg-ancestry-row span:last-child { border-right: 0; }

.cg-feature {
  margin-top: 18px;
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr) 310px;
  min-height: 300px;
}

.cg-trace-rail {
  border-right: 1px solid var(--cg-rule);
  padding: 24px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
}
.cg-trace-rail i {
  display: block;
  width: 34px;
  height: 10px;
  border-top: 2px solid var(--cg-cyan);
  border-right: 2px solid var(--cg-cyan);
}
.cg-trace-rail i:nth-child(2),
.cg-trace-rail i:nth-child(5) { margin-left: 18px; border-color: var(--cg-warn); }
.cg-trace-rail i:nth-child(3) { margin-right: 12px; border-color: var(--cg-lime); }

.cg-feature-copy { padding: clamp(24px, 4vw, 44px); }
.cg-feature h2 { font-size: clamp(30px, 5vw, 62px); margin: 0 0 18px; }
.cg-feature p:last-child { font-size: 18px; max-width: 680px; color: #33404a; }
.cg-tolerance-card {
  border-left: 1px solid var(--cg-rule);
  padding: 24px;
  background: #dcebf0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.cg-tolerance-card strong { font-family: var(--cg-display); text-transform: uppercase; letter-spacing: -0.02em; font-size: 24px; }
.cg-tolerance-card span { color: #36404a; }

.cg-loadtest { margin-top: 18px; padding: clamp(22px, 4vw, 34px); }
.cg-loadtest h2 { font-size: clamp(26px, 4vw, 48px); max-width: 780px; margin: 0 0 22px; }
.cg-load-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.cg-load-grid article { border: 1px solid var(--cg-rule); padding: 18px; background: #edf7f9; }
.cg-load-grid h3 { margin: 0 0 8px; font-family: var(--cg-display); text-transform: uppercase; letter-spacing: -0.02em; }
.cg-load-grid p { margin: 0; color: #3f4b55; }

.cg-posts { margin-top: 28px; }
.cg-posts-head { display: flex; align-items: end; justify-content: space-between; gap: 18px; border-bottom: 2px solid var(--cg-aubergine); margin-bottom: 14px; }
.cg-posts h2 { margin: 0 0 12px; font-size: clamp(28px, 4vw, 52px); }
.cg-packet-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }

.cg-packet { margin: 0; }
.cg-packet-link {
  display: block;
  min-height: 270px;
  padding: 0 18px 18px;
  text-decoration: none;
  position: relative;
  transition: transform 160ms ease, border-color 160ms ease;
}
.cg-packet-link:hover { transform: translateY(-3px); border-color: var(--cg-cyan); }
.cg-packet-top {
  height: 36px;
  margin: 0 -18px 16px;
  border-bottom: 1px solid var(--cg-rule);
  display: grid;
  grid-template-columns: 0.7fr 1.4fr 0.9fr 1.1fr;
}
.cg-packet-top span { border-right: 1px solid var(--cg-rule); }
.cg-packet-top span:nth-child(2) { border-bottom: 7px solid var(--cg-lime); }
.cg-packet-top span:nth-child(3) { border-bottom: 7px solid var(--cg-warn); }
.cg-packet-date { display: block; color: var(--cg-muted); margin-bottom: 18px; }
.cg-packet h2 { font-size: 25px; margin: 0 0 12px; }
.cg-packet p { margin: 0; color: #3b4650; }
.cg-packet-foot {
  margin-top: 24px;
  padding-top: 10px;
  border-top: 1px solid var(--cg-rule);
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--cg-mono);
  font-size: 11px;
  text-transform: uppercase;
  color: var(--cg-cyan);
}

.cg-article-shell { padding: 18px 0 72px; }
.cg-article-header { padding: 0 clamp(22px, 5vw, 56px) clamp(24px, 4vw, 42px); margin-top: 18px; }
.cg-article-ruler {
  height: 42px;
  margin: 0 calc(clamp(22px, 5vw, 56px) * -1) 28px;
  border-bottom: 1px solid var(--cg-rule);
  display: grid;
  grid-template-columns: repeat(7, 1fr);
}
.cg-article-ruler span { border-right: 1px solid var(--cg-rule); }
.cg-article-ruler span:nth-child(2), .cg-article-ruler span:nth-child(6) { border-bottom: 8px solid var(--cg-lime); }
.cg-article-ruler span:nth-child(4) { border-bottom: 8px solid var(--cg-warn); }
.cg-article-source { color: var(--cg-cyan); margin: 0 0 12px; }
.cg-backlink { margin-bottom: 28px; font-size: 14px; }
.cg-article-header h1 { font-size: clamp(42px, 7vw, 88px); max-width: 980px; margin: 0 0 20px; }
.cg-article-meta { color: var(--cg-muted); }

.cg-article-frame {
  display: grid;
  grid-template-columns: 108px minmax(0, 760px) 270px;
  gap: 18px;
  align-items: start;
  margin-top: 18px;
}
.cg-phase-gutter {
  position: sticky;
  top: 18px;
  border: 1px solid var(--cg-rule);
  background: #dcebf0;
  min-height: 520px;
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  padding: 18px 10px;
}
.cg-phase-gutter span {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-family: var(--cg-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--cg-aubergine);
}
.cg-article-body {
  padding: clamp(26px, 5vw, 58px);
  font-size: 18px;
}
.cg-article-body p { margin: 0 0 1.2em; }
.cg-article-body h2, .cg-article-body h3 {
  font-family: var(--cg-display);
  text-transform: uppercase;
  letter-spacing: -0.035em;
  line-height: 1;
  margin: 2em 0 0.6em;
}
.cg-article-body h2 { font-size: clamp(28px, 4vw, 44px); }
.cg-article-body h3 { font-size: 24px; }
.cg-article-body blockquote {
  margin: 1.6em 0;
  padding: 16px 18px;
  border-left: 5px solid var(--cg-cyan);
  background: #edf7f9;
  color: #303947;
}
.cg-article-body code {
  font-family: var(--cg-mono);
  font-size: 0.9em;
  background: #dcebf0;
  padding: 0.1em 0.28em;
}
.cg-register {
  position: sticky;
  top: 18px;
  padding: 18px;
  background: #edf7f9;
}
.cg-register h2 { color: var(--cg-cyan); margin: 0 0 14px; }
.cg-register p { margin: 0; color: #3c4650; font-size: 14px; }

@media (max-width: 940px) {
  .cg-frequency-band { grid-template-columns: repeat(2, 1fr); }
  .cg-hero, .cg-feature, .cg-article-frame { grid-template-columns: 1fr; }
  .cg-trace-rail { flex-direction: row; min-height: 70px; border-right: 0; border-bottom: 1px solid var(--cg-rule); padding: 18px; }
  .cg-tolerance-card { border-left: 0; border-top: 1px solid var(--cg-rule); }
  .cg-load-grid, .cg-packet-grid { grid-template-columns: 1fr; }
  .cg-phase-gutter, .cg-register { position: static; min-height: auto; }
  .cg-phase-gutter { flex-direction: row; }
  .cg-phase-gutter span { writing-mode: horizontal-tb; transform: none; }
}

@media (max-width: 640px) {
  .cg-topline, .cg-home, .cg-article-shell { width: min(100% - 20px, 1180px); }
  .cg-frequency-band { grid-template-columns: 1fr; }
  .cg-ancestry-row { grid-template-columns: 1fr; }
  .cg-mast:after { display: none; }
  .cg-mast h1 { font-size: 42px; }
  .cg-article-body { font-size: 16px; }
}