diff --git a/marketing-site/styles/globals.css b/marketing-site/styles/globals.css
index 16269a3..455a492 100644
--- a/marketing-site/styles/globals.css
+++ b/marketing-site/styles/globals.css
@@ -421,3 +421,188 @@ h1, h2, h3 { text-wrap: balance; margin: 0; }
 .foot-links a:hover { color: #f7f5f0; }
 .colophon { padding-top: 26px; font-family: var(--font-mono); font-size: 11.5px; color: #7a7266; letter-spacing: 0.02em; line-height: 1.8; }
 @media (max-width: 600px) { .foot-in { padding: 48px 20px 40px; } }
+
+/* ============ READER DEMO ============ */
+/* Layout the landing page does not already have. Same tokens, same 1080px wrap,
+   same ~20px cards and 999px pills. Do not restyle the homepage recipe. */
+
+.demo-chip {
+  display: inline-flex; align-items: center; gap: 8px;
+  font-family: var(--font-mono); font-size: 11px; font-weight: 500;
+  letter-spacing: 0.12em; text-transform: uppercase;
+  color: var(--color-amber);
+  background: rgba(180, 121, 31, 0.08);
+  border: 1px solid rgba(180, 121, 31, 0.22);
+  padding: 5px 12px; border-radius: 999px;
+  margin-bottom: 22px;
+}
+
+.reader-nav .reader-links { gap: 22px; }
+.reader-nav .nav-current {
+  font-size: 14.5px; font-weight: 600; color: var(--color-ink);
+  max-width: 22ch; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
+}
+@media (max-width: 860px) {
+  .reader-nav .nav-links {
+    display: flex; align-items: center; gap: 16px; font-size: 13.5px;
+  }
+  .reader-nav .nav-cta {
+    display: inline-flex; font-size: 13px; padding: 8px 14px;
+  }
+  .reader-nav .nav-current { display: none; }
+  .reader-nav .nav-toggle { display: none; }
+}
+
+.chapter-progress {
+  position: sticky; top: 68px; z-index: 40;
+  background: color-mix(in srgb, var(--color-paper) 88%, transparent);
+  backdrop-filter: blur(12px) saturate(1.2);
+  -webkit-backdrop-filter: blur(12px) saturate(1.2);
+  border-bottom: 1px solid var(--color-line);
+}
+.chapter-progress-in {
+  display: flex; align-items: center; justify-content: space-between; gap: 16px;
+  min-height: 40px;
+  font-family: var(--font-mono); font-size: 12px; color: var(--color-muted);
+  letter-spacing: 0.04em;
+}
+.chapter-progress-links { display: flex; gap: 16px; flex-wrap: wrap; }
+.chapter-progress-links a { color: var(--color-pine); font-weight: 500; }
+.chapter-progress-links a:hover { color: var(--color-pine-deep); }
+
+.chapter-page { padding: 48px 0 96px; }
+.chapter-col { max-width: 42rem; }
+.chapter-kicker { margin: 8px 0 14px; }
+.chapter-title {
+  font-family: var(--font-display); font-weight: 900;
+  font-size: clamp(2.1rem, 4.6vw, 3.4rem);
+  letter-spacing: -0.028em; line-height: 1.02; margin: 0 0 12px;
+}
+.chapter-by {
+  font-family: var(--font-mono); font-size: 12.5px; color: var(--color-muted);
+  letter-spacing: 0.04em; margin-bottom: 28px;
+}
+.chapter-promise {
+  font-size: 1.12rem; line-height: 1.62; color: var(--color-ink); margin: 0 0 22px;
+}
+
+.skip-row {
+  display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
+  margin: 0 0 48px; padding: 16px 0;
+  border-top: 1px dashed var(--color-line-2);
+  border-bottom: 1px dashed var(--color-line-2);
+}
+.skip-label {
+  font-family: var(--font-mono); font-size: 11.5px; font-weight: 500;
+  letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-pine);
+  margin-right: 4px;
+}
+.skip-chip {
+  display: inline-flex; align-items: baseline; gap: 8px;
+  font-family: var(--font-mono); font-size: 12.5px; color: var(--color-pine);
+  background: var(--color-pine-wash); border: 1px solid var(--color-pine-tint);
+  padding: 7px 13px; border-radius: 999px;
+  transition: background 0.18s, transform 0.14s var(--ease);
+}
+.skip-chip:hover { background: var(--color-pine-tint); transform: translateY(-1px); }
+.skip-chip:focus-visible { outline: 2px solid var(--color-pine); outline-offset: 3px; }
+.skip-chip-job {
+  font-family: var(--font-body); font-size: 13px; font-weight: 600;
+  color: var(--color-ink); letter-spacing: 0; text-transform: none;
+}
+
+.essay { margin: 0 0 36px; }
+.essay h2 {
+  font-family: var(--font-display); font-weight: 600;
+  font-size: 1.45rem; letter-spacing: -0.02em; line-height: 1.2;
+  margin: 0 0 12px;
+}
+.essay p { color: var(--color-ink); margin: 0 0 14px; }
+.essay p:last-child { margin-bottom: 0; }
+
+.recipe-nested {
+  margin: 40px 0 52px;
+  scroll-margin-top: 128px;
+}
+.recipe-nested .step-copy { min-width: 0; flex: 1; }
+.recipe-nested .step-copy .term { margin-top: 12px; }
+
+.plain-list { margin: 0; padding: 0 0 0 1.1em; }
+.plain-list li { margin: 0 0 6px; }
+.plain-list li:last-child { margin-bottom: 0; }
+
+.evidence-p { margin: 0 0 10px; }
+.evidence-p:last-child { margin-bottom: 0; }
+.sub-line { color: var(--color-muted); font-size: 14.5px; margin: 8px 0 12px; }
+.inline-sample {
+  font-family: var(--font-mono); font-size: 13px; color: var(--color-pine);
+  border-bottom: 1px solid var(--color-pine-tint);
+}
+.inline-sample:hover { color: var(--color-pine-deep); }
+
+.tryit-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
+.tryit-actions .btn { font-size: 14px; padding: 11px 18px; }
+.tryit-done { gap: 8px; }
+.recipe-record {
+  display: flex; flex-direction: column; gap: 6px;
+  font-size: 14.5px; color: var(--color-muted);
+}
+.recipe-record a { color: var(--color-pine); font-weight: 600; }
+.recipe-record a:hover { color: var(--color-pine-deep); }
+
+.end-matter {
+  margin-top: 56px; padding-top: 28px;
+  border-top: 1px solid var(--color-line);
+}
+.end-matter h2 {
+  font-family: var(--font-display); font-weight: 600;
+  font-size: 1.35rem; letter-spacing: -0.02em; margin: 0 0 12px;
+}
+.end-matter h2 + .further-list { margin-bottom: 32px; }
+.further-list { margin: 0 0 8px; padding: 0 0 0 1.1em; color: var(--color-ink); }
+.further-list li { margin: 0 0 8px; }
+.further-list a { color: var(--color-pine); font-weight: 600; }
+.chapter-updated {
+  font-family: var(--font-mono); font-size: 12px; color: var(--color-muted);
+  letter-spacing: 0.04em; margin-top: 18px;
+}
+
+.library-title {
+  font-family: var(--font-display); font-weight: 900;
+  font-size: clamp(1.9rem, 4vw, 3rem); letter-spacing: -0.025em;
+  margin: 14px 0 16px; max-width: 18ch;
+}
+.library-lede { color: var(--color-muted); max-width: 38rem; margin-bottom: 34px; }
+
+.toc .toc-soon {
+  display: grid; grid-template-columns: 52px 1fr auto auto;
+  align-items: center; gap: 20px; padding: 22px 8px;
+  border-bottom: 1px solid var(--color-line);
+  color: var(--color-muted);
+}
+.toc .soon {
+  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em;
+  text-transform: uppercase; color: var(--color-muted);
+  background: var(--color-card); border: 1px solid var(--color-line);
+  padding: 4px 10px; border-radius: 999px; white-space: nowrap;
+}
+@media (max-width: 720px) {
+  .toc .toc-soon .desc { display: none; }
+  .toc .toc-soon { grid-template-columns: 40px 1fr auto; }
+}
+
+.recipe-focus-page { padding: 40px 0 96px; }
+.recipe-focus-page .demo-chip { margin-bottom: 12px; }
+.recipe-focus-page .recipe { max-width: 42rem; }
+.focus-back {
+  font-family: var(--font-mono); font-size: 13px; color: var(--color-muted);
+  margin: 0 0 28px;
+}
+.focus-back a { color: var(--color-pine); font-weight: 600; }
+
+@media print {
+  .reader-nav, .chapter-progress, .reader-footer, .skip-row, .tryit-actions, .demo-chip {
+    display: none !important;
+  }
+  .recipe-nested { break-inside: avoid; box-shadow: none; }
+}