/* Bitcoin research — themed to patrickjanson.no Launchpad
   Tokens mirrored from https://patrickjanson.no/style.css */
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Outfit:wght@500;600;700&display=swap");

:root {
  /* Exact Launchpad tokens */
  --bg: #06070a;
  --text: #f0f2f6;
  --text-muted: #8d96a8;
  --radius: 14px;
  --font-sans: "Inter", system-ui, sans-serif;
  --font-display: "Outfit", system-ui, sans-serif;

  --ember: #ff6a28;
  --forge: #f59e0b;
  --ice: #3b9eff;
  --steel: #34d399;
  --bloom: #f472b6;

  /* Surfaces (hub glass) */
  --bg-elevated: rgba(255, 255, 255, 0.03);
  --bg-soft: rgba(255, 255, 255, 0.025);
  --bg-card: rgba(255, 255, 255, 0.03);
  --border: rgba(255, 255, 255, 0.07);
  --border-soft: rgba(255, 255, 255, 0.05);
  --border-strong: rgba(255, 255, 255, 0.12);
  --border-line: rgba(255, 255, 255, 0.06);

  /* Bitcoin hub accent = forge (research app on Launchpad) */
  --accent: var(--forge);
  --accent-hot: var(--ember);
  --link: #7ec8ff;
  --link-hover: #b3e0ff;
  --eyebrow: rgba(255, 184, 138, 0.85);

  --warn-bg: rgba(245, 158, 11, 0.12);
  --warn-border: rgba(245, 158, 11, 0.45);
  --warn-text: #ffe6a8;

  --font-mono: ui-monospace, "Cascadia Code", "Consolas", monospace;
  --max: 72rem;
  --content: 46rem;
  --header-h: 64px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 1.04rem;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Ambient vignette — same family as Launchpad hub-vignette */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 90% 60% at 50% -15%, rgba(255, 106, 40, 0.1), transparent 55%),
    radial-gradient(ellipse 45% 35% at 92% 18%, rgba(245, 158, 11, 0.07), transparent 50%),
    linear-gradient(180deg, transparent 60%, rgba(6, 7, 10, 0.85) 100%);
}

::selection {
  background: rgba(245, 158, 11, 0.35);
  color: #fff;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--link);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--link-hover);
}

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

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--forge);
  color: #111;
  padding: 0.5rem 1rem;
  z-index: 1000;
  font-weight: 600;
  border-radius: 8px;
}

.skip-link:focus {
  left: 0.5rem;
  top: 0.5rem;
}

.wrap {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

/* —— Header —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(6, 7, 10, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-line);
}

.header-inner {
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: inherit;
  text-decoration: none;
  flex-shrink: 0;
}

.brand:hover {
  color: inherit;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 10px;
  background: linear-gradient(145deg, #fbbf24, var(--forge) 45%, var(--ember));
  color: #1a1200;
  font-weight: 800;
  font-size: 1.15rem;
  box-shadow: 0 0 24px rgba(245, 158, 11, 0.28);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-text strong {
  font-family: var(--font-display);
  font-size: 0.98rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: #fff;
}

.brand-text small {
  color: var(--text-muted);
  font-size: 0.72rem;
}

.hub-link {
  display: none;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--eyebrow);
  text-decoration: none;
  white-space: nowrap;
  padding: 0.35rem 0.55rem;
  border-radius: 8px;
  border: 1px solid transparent;
  transition: color 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.hub-link:hover {
  color: #ffb88a;
  background: rgba(255, 106, 40, 0.08);
  border-color: rgba(255, 106, 40, 0.2);
}

.header-spacer {
  flex: 1;
  min-width: 0.5rem;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem 0.75rem;
  align-items: center;
}

.site-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.86rem;
  font-weight: 500;
  padding: 0.3rem 0.15rem;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.site-nav a:hover {
  color: var(--text);
  border-bottom-color: var(--forge);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
  border-radius: 10px;
  padding: 0.4rem 0.75rem;
  cursor: pointer;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.85rem;
}

.progress-track {
  height: 3px;
  background: rgba(255, 255, 255, 0.06);
}

.progress-bar {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--ember), var(--forge));
  transition: width 0.15s ease;
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.4);
}

/* Sticky banner */
.sticky-banner {
  position: sticky;
  top: calc(var(--header-h) + 3px);
  z-index: 90;
  background: var(--warn-bg);
  border-bottom: 1px solid var(--warn-border);
  color: var(--warn-text);
  padding: 0.6rem 0;
  font-size: 0.9rem;
  backdrop-filter: blur(8px);
}

/* Layout */
.layout {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  gap: 1.5rem;
  padding: 1.5rem 0 3rem;
  align-items: start;
}

.toc {
  position: sticky;
  top: calc(var(--header-h) + 1rem);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-soft);
  border-radius: calc(var(--radius) + 2px);
  padding: 1rem 0.9rem;
  max-height: calc(100vh - var(--header-h) - 1.75rem);
  overflow: auto;
}

.toc-title {
  margin: 0 0 0.75rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.38);
  border-bottom: 1px solid var(--border-line);
  padding-bottom: 0.45rem;
}

.toc-list {
  margin: 0;
  padding: 0 0 0 1rem;
  font-size: 0.84rem;
}

.toc-list li {
  margin: 0.32rem 0;
}

.toc-list a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s ease;
}

.toc-list a:hover {
  color: var(--text);
}

.toc-list a.is-active {
  color: var(--forge);
  font-weight: 600;
}

.toc-meta {
  margin: 1rem 0 0;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-line);
  font-size: 0.74rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.content {
  min-width: 0;
  max-width: calc(var(--content) + 5rem);
}

/* Prose card — hub section glass */
.prose {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-soft);
  border-radius: calc(var(--radius) + 2px);
  padding: clamp(1.35rem, 3.2vw, 2.35rem);
  position: relative;
  overflow: hidden;
}

.prose::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.1rem;
  bottom: 1.1rem;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--forge);
  opacity: 0.9;
}

.prose h1 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 3.2vw, 2.2rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.035em;
  color: #fff;
}

.prose h2 {
  margin: 2.1rem 0 0.7rem;
  font-family: var(--font-display);
  font-size: 1.28rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  border-bottom: 1px solid var(--border-line);
  padding-bottom: 0.4rem;
  color: #fff;
}

.prose h3 {
  margin: 1.45rem 0 0.45rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: #fff;
}

.prose p,
.prose ul,
.prose ol {
  margin: 0.95rem 0;
}

.prose p {
  max-width: 42rem;
}

.prose li {
  max-width: 42rem;
  margin: 0.32rem 0;
}

.prose blockquote {
  margin: 1.25rem 0;
  padding: 0.9rem 1.1rem;
  border-left: 3px solid var(--forge);
  background: rgba(245, 158, 11, 0.08);
  border-radius: 0 12px 12px 0;
  color: var(--text);
}

.prose hr {
  border: 0;
  border-top: 1px solid var(--border-line);
  margin: 2rem 0;
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.86em;
  background: rgba(255, 255, 255, 0.05);
  padding: 0.12em 0.38em;
  border-radius: 6px;
  border: 1px solid var(--border-line);
}

.prose pre {
  overflow: auto;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
  font-size: 0.86rem;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  margin: 1.35rem 0;
  display: block;
  overflow-x: auto;
  border-radius: 10px;
  -webkit-overflow-scrolling: touch;
  scrollbar-color: rgba(245, 158, 11, 0.35) transparent;
}

.prose th,
.prose td {
  border: 1px solid var(--border);
  padding: 0.55rem 0.72rem;
  text-align: left;
  vertical-align: top;
}

.prose th {
  background: rgba(245, 158, 11, 0.1);
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
}

.prose tr:nth-child(even) td {
  background: rgba(255, 255, 255, 0.02);
}

.prose strong {
  color: #fff;
  font-weight: 600;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.7rem;
  color: var(--eyebrow);
  margin: 0 0 0.55rem;
  font-weight: 600;
}

.lede {
  font-size: 1.12rem;
  color: var(--text-muted);
  max-width: 40rem;
  line-height: 1.55;
}

.chapter-meta {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin: 0 0 1.35rem;
}

.chapter-body > blockquote,
.prose > blockquote,
.prose blockquote {
  max-width: 42rem;
}

/* Back to top */
.back-top {
  position: fixed;
  right: 1.1rem;
  bottom: 1.1rem;
  z-index: 80;
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(6, 7, 10, 0.88);
  color: var(--forge);
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  display: grid;
  place-items: center;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease, border-color 0.15s ease;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.back-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.back-top:hover {
  border-color: rgba(245, 158, 11, 0.45);
  color: #fbbf24;
}

/* Reading guide on home */
.how-to-read {
  margin: 1.25rem 0 0;
  padding: 0.9rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.025);
  max-width: 40rem;
}

.how-to-read p {
  margin: 0.35rem 0 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.how-to-read strong {
  color: #fff;
}

/* Hub metrics (front page) */
.hub-metrics-lead {
  color: var(--text-muted);
  font-size: 0.92rem;
  max-width: 40rem;
  margin: 0.5rem 0 0.85rem;
}

.hub-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.65rem;
  margin: 0.5rem 0 0.75rem;
}

.hub-metric-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.85rem 0.9rem;
  position: relative;
  overflow: hidden;
}

.hub-metric-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  bottom: 0.55rem;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--forge);
}

.hub-metric-label {
  display: block;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  font-weight: 600;
  margin-left: 0.35rem;
}

.hub-metric-value {
  display: block;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
  margin: 0.25rem 0 0.15rem 0.35rem;
  letter-spacing: -0.03em;
}

.hub-metric-hint {
  display: block;
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-left: 0.35rem;
}

/* Decision Q&A cards */
.qa-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 0.75rem;
  margin: 1rem 0 1.5rem;
}

.qa-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.05rem;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.qa-card:hover {
  background: rgba(255, 255, 255, 0.055);
  border-color: var(--border-strong);
  transform: translateY(-2px);
  color: inherit;
}

.qa-card--danger {
  border-color: rgba(255, 106, 40, 0.28);
}

.qa-q {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.qa-a {
  display: block;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--forge);
  letter-spacing: -0.02em;
  margin-bottom: 0.35rem;
}

.qa-card--danger .qa-a {
  color: var(--ember);
}

.qa-card p {
  margin: 0;
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.4;
  max-width: none;
}

/* Chapter summary + in-page TOC */
.chapter-summary {
  margin: 0 0 1.25rem;
  padding: 0.95rem 1.1rem;
  border-radius: 12px;
  border: 1px solid rgba(245, 158, 11, 0.28);
  background: rgba(245, 158, 11, 0.07);
  max-width: 42rem;
}

.chapter-summary-title {
  margin: 0 0 0.45rem !important;
  font-size: 0.72rem !important;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--forge) !important;
}

.chapter-summary ol {
  margin: 0.35rem 0 0 !important;
  padding-left: 1.2rem;
}

.chapter-summary li {
  margin: 0.35rem 0;
  font-size: 0.92rem;
  max-width: none;
}

.chapter-toc {
  margin: 0 0 1.5rem;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--border-soft);
  background: rgba(255, 255, 255, 0.02);
  max-width: 42rem;
}

.chapter-toc-title {
  margin: 0 0 0.4rem !important;
  font-size: 0.68rem !important;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.38) !important;
}

.chapter-toc ol {
  margin: 0.25rem 0 0 !important;
  padding-left: 1.15rem;
  font-size: 0.88rem;
}

.chapter-toc a {
  color: var(--text-muted);
  text-decoration: none;
}

.chapter-toc a:hover {
  color: var(--forge);
}

/* Figures */
.prose figure.report-fig,
.chapter-body figure.report-fig {
  margin: 1.5rem 0;
  max-width: 46rem;
  padding: 0;
}

.prose figure.report-fig img,
.chapter-body figure.report-fig img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #06070a;
}

.prose figure.report-fig figcaption,
.chapter-body figure.report-fig figcaption {
  margin-top: 0.45rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
  max-width: 42rem;
}

.source-line,
.reproduce-note,
.verified-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: 0.75rem 0 1.25rem;
  max-width: 42rem;
  line-height: 1.45;
}

.source-line code,
.reproduce-note code {
  font-size: 0.85em;
  color: #c4cad6;
  background: rgba(255, 255, 255, 0.04);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}

.primary-sources {
  margin: 0.75rem 0 1.25rem;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  border: 1px solid rgba(59, 158, 255, 0.25);
  background: rgba(59, 158, 255, 0.06);
  max-width: 42rem;
}

.primary-sources p {
  margin: 0 0 0.4rem !important;
  font-size: 0.72rem !important;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ice) !important;
}

.primary-sources ul {
  margin: 0 !important;
  padding-left: 1.1rem;
  font-size: 0.88rem;
}

.primary-sources li {
  margin: 0.25rem 0;
  max-width: none;
}

/* Key takeaway callouts (v1.1) */
.key-takeaway {
  margin: 1.15rem 0 1.35rem;
  padding: 0.9rem 1.05rem;
  border-radius: 12px;
  border: 1px solid rgba(52, 211, 153, 0.35);
  background: rgba(52, 211, 153, 0.08);
  max-width: 42rem;
}

.key-takeaway p {
  margin: 0 !important;
  font-size: 0.95rem;
  color: #d1fae5;
  max-width: none;
}

.key-takeaway strong {
  color: #6ee7b7;
}

/* Home hero — hub-rise feel */
.home .hero-block {
  animation: hub-rise 0.6s var(--ease-out) both;
}

.home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin: 1.25rem 0 0.5rem;
}

.meta-card {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.65rem;
  margin: 1.5rem 0;
}

.meta-card div {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.8rem 0.9rem;
  position: relative;
  overflow: hidden;
}

.meta-card div::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  bottom: 0.55rem;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--forge);
  opacity: 0.85;
}

.meta-card span {
  display: block;
  font-size: 0.68rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  margin-left: 0.35rem;
}

.meta-card strong {
  font-size: 0.95rem;
  margin-left: 0.35rem;
  display: block;
  margin-top: 0.2rem;
  font-family: var(--font-display);
}

.callout {
  border-radius: 12px;
  padding: 0.95rem 1.1rem;
  margin: 1.25rem 0;
  border: 1px solid var(--border);
}

.callout-warn {
  background: var(--warn-bg);
  border-color: var(--warn-border);
  color: var(--warn-text);
}

.key-points {
  padding-left: 1.2rem;
}

.key-points li {
  margin: 0.55rem 0;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.75rem;
  margin: 1rem 0 1.75rem;
}

/* Cards mirror .hub-app */
.card {
  --hub-accent: var(--forge);
  position: relative;
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.95rem 0.95rem 0.95rem 1.05rem;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
  animation: hub-card-in 0.55s var(--ease-out) both;
}

.card:nth-child(1) {
  --hub-accent: var(--forge);
  animation-delay: 40ms;
}
.card:nth-child(2) {
  --hub-accent: var(--ember);
  animation-delay: 90ms;
}
.card:nth-child(3) {
  --hub-accent: var(--ice);
  animation-delay: 140ms;
}
.card:nth-child(4) {
  --hub-accent: var(--steel);
  animation-delay: 190ms;
}

.card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65rem;
  bottom: 0.65rem;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--hub-accent);
  opacity: 0.85;
}

.card:hover {
  background: rgba(255, 255, 255, 0.055);
  border-color: var(--border-strong);
  transform: translateY(-2px);
  color: inherit;
}

.card-kicker {
  display: block;
  font-size: 0.68rem;
  color: var(--hub-accent);
  margin-bottom: 0.3rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.card strong {
  font-family: var(--font-display);
  font-size: 0.98rem;
  letter-spacing: -0.02em;
  color: #fff;
}

.card p {
  margin: 0.4rem 0 0;
  color: var(--text-muted);
  font-size: 0.86rem;
  line-height: 1.4;
}

.chapter-index {
  padding-left: 1.15rem;
  margin: 0;
}

.chapter-index li {
  list-style: decimal;
}

.chapter-index a {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  padding: 0.55rem 0.35rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  color: inherit;
  border-radius: 6px;
  margin-left: -0.35rem;
  padding-right: 0.5rem;
  transition: background 0.15s ease;
}

.chapter-index a:hover {
  background: rgba(255, 255, 255, 0.03);
}

.chapter-index a:hover .ci-title {
  color: var(--forge);
}

.ci-nav {
  font-size: 0.72rem;
  color: var(--forge);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.ci-title {
  color: var(--text);
  font-size: 0.95rem;
  transition: color 0.15s ease;
}

.download-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.15rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #fbbf24, var(--forge) 50%, var(--ember));
  color: #1a1200 !important;
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  border: 1px solid transparent;
  box-shadow: 0 4px 20px rgba(245, 158, 11, 0.25);
  transition: filter 0.15s ease, transform 0.15s ease;
}

.btn:hover {
  filter: brightness(1.06);
  transform: translateY(-1px);
  color: #1a1200 !important;
}

.btn-ghost {
  background: transparent;
  color: var(--text) !important;
  border-color: var(--border);
  box-shadow: none;
}

.btn-ghost:hover {
  border-color: var(--border-strong);
  background: rgba(255, 255, 255, 0.04);
  color: #fff !important;
  filter: none;
}

/* Pager */
.chapter-pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-line);
}

.pager-link {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  text-decoration: none;
  color: inherit;
  padding: 0.9rem 1rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-soft);
  transition: border-color 0.15s ease, background 0.15s ease;
}

.pager-link:hover {
  border-color: rgba(245, 158, 11, 0.4);
  background: rgba(245, 158, 11, 0.06);
  color: inherit;
}

.pager-link span {
  font-size: 0.68rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

.pager-link strong {
  font-family: var(--font-display);
  font-weight: 600;
  color: #fff;
}

.pager-link.next {
  text-align: right;
  justify-self: end;
}

/* Footer */
.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  background: rgba(0, 0, 0, 0.25);
  padding: 2rem 0 2.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-inner p {
  margin: 0.5rem 0;
  max-width: 48rem;
}

.footer-links a {
  color: var(--eyebrow);
  text-decoration: none;
}

.footer-links a:hover {
  color: #ffb88a;
}

.license {
  font-size: 0.78rem;
  opacity: 0.75;
}

/* Plan audit badge on home */
.audit-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 1rem 0 0.25rem;
}

.audit-chip {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 0.28rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-muted);
}

.audit-chip--ok {
  border-color: rgba(52, 211, 153, 0.35);
  color: #6ee7b7;
  background: rgba(52, 211, 153, 0.08);
}

.audit-chip--warn {
  border-color: rgba(245, 158, 11, 0.4);
  color: #fcd34d;
  background: rgba(245, 158, 11, 0.08);
}

/* Theme palette strip (home) — shows Launchpad tokens in use */
.theme-swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.75rem 0 0;
  align-items: center;
}

.theme-swatches span {
  width: 0.85rem;
  height: 0.85rem;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.theme-swatches .sw-ember { background: var(--ember); }
.theme-swatches .sw-forge { background: var(--forge); }
.theme-swatches .sw-ice { background: var(--ice); }
.theme-swatches .sw-steel { background: var(--steel); }
.theme-swatches .sw-bloom { background: var(--bloom); }
.theme-swatches .sw-label {
  width: auto;
  height: auto;
  border: 0;
  font-size: 0.68rem;
  color: rgba(255, 255, 255, 0.35);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 600;
  margin-left: 0.25rem;
}

@keyframes hub-rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes hub-card-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Mobile */
@media (max-width: 860px) {
  .layout {
    grid-template-columns: 1fr;
    padding-top: 1rem;
  }

  .toc {
    position: static;
    max-height: none;
  }

  .nav-toggle {
    display: inline-block;
    margin-left: auto;
  }

  .hub-link {
    display: inline-flex;
    align-items: center;
  }

  .site-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    padding: 0 0 0.85rem;
    gap: 0.15rem;
    order: 10;
  }

  .site-nav.is-open {
    display: flex;
  }

  .header-inner {
    flex-wrap: wrap;
  }

  .header-spacer {
    display: none;
  }

  .sticky-banner {
    position: static;
  }

  .chapter-pager {
    grid-template-columns: 1fr;
  }

  .pager-link.next {
    text-align: left;
    justify-self: stretch;
  }
}

@media (min-width: 861px) {
  .hub-link {
    display: inline-flex;
    align-items: center;
  }
}

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

  .progress-bar,
  .card,
  .btn,
  .home .hero-block {
    transition: none;
    animation: none;
  }

  .card:hover,
  .btn:hover {
    transform: none;
  }
}

@media print {
  .site-header,
  .toc,
  .sticky-banner,
  .chapter-pager,
  .nav-toggle,
  .site-footer .footer-links,
  body::before,
  .theme-swatches,
  .audit-strip {
    display: none !important;
  }

  .layout {
    display: block;
  }

  .prose {
    box-shadow: none;
    border: none;
    padding: 0;
    background: #fff;
  }

  .prose::before {
    display: none;
  }

  body {
    background: #fff;
    color: #000;
  }

  a {
    color: #000;
  }

  .prose h1,
  .prose h2,
  .prose h3,
  .prose strong {
    color: #000;
  }
}