@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=Inter:wght@400;500;600;700;800&family=Sora:wght@500;600;700;800&display=swap");

:root {
  --bg: #f4f7fb;
  --bg-soft: #edf2fa;
  --surface: rgba(255, 255, 255, 0.8);
  --surface-strong: #ffffff;
  --surface-alt: #f7faff;
  --surface-dark: #0b1220;
  --surface-dark-soft: #121c31;
  --text: #081123;
  --text-soft: #42536d;
  --text-faint: #6a7c96;
  --text-inverse: #f5f9ff;
  --line: rgba(8, 17, 35, 0.08);
  --line-strong: rgba(8, 17, 35, 0.14);
  --accent: #2563eb;
  --accent-strong: #1d4ed8;
  --accent-soft: rgba(37, 99, 235, 0.12);
  --accent-alt: #14b8a6;
  --accent-alt-soft: rgba(20, 184, 166, 0.12);
  --violet: #6d5efc;
  --violet-soft: rgba(109, 94, 252, 0.12);
  --warning: #f59e0b;
  --warning-soft: rgba(245, 158, 11, 0.12);
  --shadow-lg: 0 28px 80px rgba(21, 36, 71, 0.12);
  --shadow-md: 0 18px 44px rgba(21, 36, 71, 0.08);
  --shadow-sm: 0 8px 20px rgba(21, 36, 71, 0.05);
  --radius-3xl: 34px;
  --radius-2xl: 28px;
  --radius-xl: 22px;
  --radius-lg: 18px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Inter", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  background:
    radial-gradient(circle at 0% 0%, rgba(37, 99, 235, 0.13), transparent 26%),
    radial-gradient(circle at 100% 8%, rgba(20, 184, 166, 0.12), transparent 24%),
    radial-gradient(circle at 50% 100%, rgba(109, 94, 252, 0.08), transparent 28%),
    linear-gradient(180deg, #f8fbff 0%, #f3f7fc 48%, #eef3f9 100%);
  position: relative;
}

body::before,
body::after {
  content: "";
  position: fixed;
  z-index: -1;
  pointer-events: none;
  border-radius: 999px;
}

body::before {
  top: 72px;
  right: -180px;
  width: 460px;
  height: 460px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.12), transparent 68%);
  filter: blur(10px);
}

body::after {
  bottom: -220px;
  left: -120px;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(20, 184, 166, 0.12), transparent 72%);
  filter: blur(18px);
}

body,
button,
input,
textarea {
  font: inherit;
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

svg {
  display: block;
}

code,
pre,
.mono,
.eyebrow,
.section-kicker,
.meta-label,
.toc-label,
.chip,
.step-index,
.stat-label,
.download-link,
.reading-path-label {
  font-family: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
}

.container {
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -56px;
  padding: 12px 16px;
  border-radius: 999px;
  background: var(--surface-dark);
  color: var(--text-inverse);
  text-decoration: none;
  z-index: 200;
  transition: top 180ms ease;
}

.skip-link:focus {
  top: 16px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  backdrop-filter: blur(18px);
  background: rgba(244, 247, 251, 0.78);
  border-bottom: 1px solid rgba(8, 17, 35, 0.05);
}

.header-inner {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 14px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  min-height: 44px;
}

.brand-mark {
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
}

.brand-copy {
  display: grid;
  gap: 2px;
}

.brand-copy strong {
  font-family: "Sora", "Inter", sans-serif;
  font-size: 0.96rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.brand-copy span {
  color: var(--text-faint);
  font-size: 0.8rem;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 14px;
  border-radius: 999px;
  text-decoration: none;
  color: var(--text-soft);
  border: 1px solid transparent;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease,
    color 180ms ease,
    box-shadow 180ms ease;
}

.nav-link:hover,
.nav-link:focus-visible,
.nav-link[aria-current="page"] {
  color: var(--text);
  background: rgba(255, 255, 255, 0.86);
  border-color: rgba(8, 17, 35, 0.08);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.nav-link--quiet {
  background: rgba(8, 17, 35, 0.04);
  border-color: rgba(8, 17, 35, 0.06);
}

.main-shell {
  padding: 40px 0 88px;
}

.hero {
  display: grid;
  gap: 24px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: 24px;
  align-items: stretch;
}

.hero-copy,
.hero-panel,
.section-stack,
.sticky-stack {
  display: grid;
  gap: 18px;
}

.hero-copy {
  align-content: start;
}

.eyebrow,
.section-kicker,
.meta-label,
.toc-label,
.reading-path-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  color: var(--accent-strong);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow::before,
.section-kicker::before,
.meta-label::before,
.toc-label::before,
.reading-path-label::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
  opacity: 0.65;
}

h1,
.h1,
.hero-title,
.display,
.display-tight,
.page-title,
.card h3,
.step-title,
.compare-title,
.article-lede h2,
.logo-card h3,
.table-title {
  font-family: "Sora", "Inter", sans-serif;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin: 0;
}

.hero-title,
.display {
  font-size: clamp(2.75rem, 6.2vw, 5.2rem);
  max-width: 12ch;
}

.display-tight {
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  max-width: 13ch;
}

.page-title {
  font-size: clamp(2.2rem, 4vw, 3.7rem);
  max-width: 14ch;
}

.section-title,
.article-lede h2,
.band-title,
.whitepaper-summary h2 {
  font-family: "Sora", "Inter", sans-serif;
  font-size: clamp(1.7rem, 2.8vw, 2.8rem);
  letter-spacing: -0.04em;
  line-height: 1.08;
  margin: 0;
}

p {
  margin: 0;
}

.lead,
.section-copy,
.card p,
.step-card p,
.compare-card p,
.metric-card p,
.quote-block p,
.feature-list li,
.prose-intro,
.footer-copy,
.footer-links a,
.logo-meta p,
.value-list li,
.faq-item p,
.reader-note p,
.muted {
  color: var(--text-soft);
}

.lead {
  font-size: clamp(1.05rem, 2vw, 1.22rem);
  max-width: 62ch;
}

.section {
  padding-top: 56px;
}

.section-head {
  display: grid;
  gap: 14px;
  margin-bottom: 22px;
  max-width: 74ch;
}

.button-row,
.pill-row,
.tag-row,
.footer-links,
.download-row,
.legend-row,
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 50px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  text-decoration: none;
  color: var(--text-inverse);
  background: linear-gradient(135deg, var(--surface-dark), #1a2744);
  box-shadow: var(--shadow-md);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background-color 180ms ease,
    border-color 180ms ease,
    color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 20px 46px rgba(16, 30, 62, 0.16);
}

.button.secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.88);
  border-color: rgba(8, 17, 35, 0.08);
}

.button.ghost {
  color: var(--accent-strong);
  background: rgba(37, 99, 235, 0.08);
  border-color: rgba(37, 99, 235, 0.14);
  box-shadow: none;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid rgba(8, 17, 35, 0.06);
  color: var(--text-soft);
  font-size: 0.95rem;
}

.pill strong {
  color: var(--text);
}

.surface,
.card,
.metric-card,
.signal-card,
.sticky-card,
.reader-note,
.download-strip,
.quote-block,
.callout-panel,
.logo-card,
.summary-card,
.side-card,
.faq-item,
.timeline-card,
.compare-card,
.mini-card,
.stat-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-2xl);
  background: var(--surface);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(16px);
}

.card,
.metric-card,
.signal-card,
.sticky-card,
.reader-note,
.download-strip,
.summary-card,
.side-card,
.faq-item,
.timeline-card,
.compare-card,
.mini-card,
.stat-card {
  padding: 24px;
}

.card-grid-2,
.card-grid-3,
.card-grid-4,
.metric-grid,
.compare-grid,
.logo-grid,
.path-grid,
.faq-grid,
.summary-grid,
.ai-grid,
.principle-grid,
.value-grid {
  display: grid;
  gap: 18px;
}

.card-grid-2,
.compare-grid,
.path-grid,
.summary-grid,
.ai-grid,
.value-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card-grid-3,
.metric-grid,
.principle-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card-grid-4,
.faq-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.logo-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card:hover,
.metric-card:hover,
.compare-card:hover,
.logo-card:hover,
.summary-card:hover,
.faq-item:hover,
.timeline-card:hover,
.stat-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 22px 46px rgba(16, 30, 62, 0.11);
}

.card,
.metric-card,
.compare-card,
.logo-card,
.summary-card,
.faq-item,
.timeline-card,
.stat-card {
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.card h3,
.metric-card h3,
.compare-card h3,
.summary-card h3,
.logo-card h3,
.faq-item h3,
.timeline-card h3,
.stat-card h3 {
  font-size: 1.22rem;
  margin-bottom: 10px;
}

.meta-label,
.toc-label {
  color: var(--text-faint);
}

.hero-panel {
  padding: 26px;
  border-radius: var(--radius-3xl);
  border: 1px solid rgba(8, 17, 35, 0.08);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(246, 250, 255, 0.86)),
    linear-gradient(135deg, rgba(37, 99, 235, 0.07), rgba(20, 184, 166, 0.05));
  box-shadow: var(--shadow-lg);
}

.hero-signal {
  display: grid;
  gap: 22px;
}

.orbit-figure {
  position: relative;
  min-height: 260px;
  border-radius: 26px;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 50%, rgba(37, 99, 235, 0.1), transparent 22%),
    linear-gradient(160deg, rgba(8, 17, 35, 0.02), rgba(37, 99, 235, 0.04));
  border: 1px solid rgba(8, 17, 35, 0.06);
}

.orbit-ring,
.orbit-ring::before,
.orbit-ring::after {
  position: absolute;
  inset: 50%;
  transform: translate(-50%, -50%);
  border-radius: 999px;
}

.orbit-ring {
  width: 210px;
  height: 210px;
  border: 1px solid rgba(37, 99, 235, 0.18);
}

.orbit-ring::before,
.orbit-ring::after {
  content: "";
  border: 1px dashed rgba(20, 184, 166, 0.22);
}

.orbit-ring::before {
  width: 158px;
  height: 158px;
}

.orbit-ring::after {
  width: 264px;
  height: 264px;
  border-style: solid;
  border-color: rgba(109, 94, 252, 0.12);
}

.orbit-core {
  position: absolute;
  inset: 50%;
  width: 108px;
  height: 108px;
  transform: translate(-50%, -50%);
  border-radius: 28px;
  background: linear-gradient(145deg, var(--surface-dark), #1d3155);
  box-shadow: 0 24px 50px rgba(8, 17, 35, 0.22);
  display: grid;
  place-items: center;
  color: var(--text-inverse);
}

.orbit-core strong {
  font-family: "Sora", sans-serif;
  font-size: 1.35rem;
  letter-spacing: -0.04em;
}

.orbit-node {
  position: absolute;
  width: 76px;
  min-height: 34px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(8, 17, 35, 0.08);
  box-shadow: var(--shadow-sm);
  display: grid;
  place-items: center;
  text-align: center;
  font-size: 0.83rem;
  color: var(--text-soft);
}

.orbit-node strong {
  color: var(--text);
}

.node-top {
  top: 24px;
  left: 50%;
  transform: translateX(-50%);
}

.node-right {
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
}

.node-bottom {
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
}

.node-left {
  left: 22px;
  top: 50%;
  transform: translateY(-50%);
}

.signal-matrix {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.signal-item {
  padding: 16px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(8, 17, 35, 0.06);
  background: rgba(255, 255, 255, 0.78);
}

.signal-item strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1rem;
}

.signal-item p {
  font-size: 0.95rem;
  color: var(--text-soft);
}

.stat-stack {
  display: grid;
  gap: 14px;
}

.stat {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(8, 17, 35, 0.06);
  background: rgba(255, 255, 255, 0.72);
}

.stat-label {
  color: var(--text-faint);
  font-size: 0.74rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.stat-value {
  font-family: "Sora", sans-serif;
  font-size: 1.55rem;
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.band {
  margin-top: 56px;
  padding: 34px;
  border-radius: var(--radius-3xl);
  border: 1px solid rgba(8, 17, 35, 0.08);
  background:
    radial-gradient(circle at 0% 0%, rgba(37, 99, 235, 0.16), transparent 28%),
    radial-gradient(circle at 100% 100%, rgba(20, 184, 166, 0.12), transparent 28%),
    linear-gradient(145deg, #0d1527, #13213b 58%, #172948 100%);
  box-shadow: 0 28px 80px rgba(8, 17, 35, 0.2);
  color: var(--text-inverse);
}

.band .section-kicker,
.band .section-title,
.band .band-title,
.band .card h3,
.band strong {
  color: var(--text-inverse);
}

.band .section-kicker {
  color: rgba(207, 225, 255, 0.8);
}

.band .section-copy,
.band .card p,
.band li,
.band .muted {
  color: rgba(232, 240, 252, 0.8);
}

.band-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 22px;
  align-items: start;
}

.band .card,
.band .mini-card {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.08);
  box-shadow: none;
  backdrop-filter: blur(16px);
}

.steps {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.step-card {
  padding: 22px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow-sm);
}

.step-index {
  display: inline-flex;
  min-width: 34px;
  min-height: 34px;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 0.82rem;
}

.step-title {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.compare-card,
.timeline-card,
.faq-item,
.logo-card {
  display: grid;
  gap: 10px;
}

.compare-label {
  display: inline-flex;
  width: fit-content;
  min-height: 30px;
  align-items: center;
  padding: 0 12px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
}

.compare-label.static {
  background: rgba(8, 17, 35, 0.06);
  color: var(--text-soft);
}

.compare-label.organic {
  background: rgba(20, 184, 166, 0.12);
  color: #0f766e;
}

.value-list,
.feature-list,
.principle-list,
.reader-list,
.footer-inline,
.note-list {
  display: grid;
  gap: 10px;
  padding-left: 1.1rem;
  margin: 0;
}

.value-list li,
.feature-list li,
.principle-list li,
.reader-list li,
.note-list li {
  padding-left: 0.15rem;
}

.quote-block {
  display: grid;
  gap: 14px;
  padding: 28px;
}

.quote-block strong {
  font-family: "Sora", sans-serif;
  font-size: 1.3rem;
  line-height: 1.2;
}

.callout-panel {
  padding: 28px;
  display: grid;
  gap: 16px;
}

.callout-panel strong {
  font-family: "Sora", sans-serif;
  font-size: 1.1rem;
}

.reading-path {
  display: grid;
  gap: 10px;
}

.path-card {
  padding: 24px;
}

.path-card .button-row {
  margin-top: 10px;
}

.side-by-side {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.82fr);
  gap: 24px;
}

.sticky-card {
  position: sticky;
  top: 112px;
}

.sticky-card h3,
.summary-card h3,
.side-card h3 {
  font-size: 1.12rem;
}

.download-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.download-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  padding: 0 14px;
  border-radius: 999px;
  text-decoration: none;
  color: var(--accent-strong);
  background: rgba(37, 99, 235, 0.08);
  border: 1px solid rgba(37, 99, 235, 0.14);
}

.reader-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.3fr) minmax(0, 0.7fr);
  gap: 24px;
  align-items: start;
}

.toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.toc-item--h3 {
  padding-left: 16px;
}

.toc-link {
  display: block;
  padding: 9px 10px;
  border-radius: 12px;
  text-decoration: none;
  color: var(--text-soft);
  transition: background-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.toc-link:hover,
.toc-link:focus-visible,
.toc-link.is-active {
  color: var(--text);
  background: rgba(8, 17, 35, 0.05);
  transform: translateX(2px);
}

.paper-prose {
  padding: 34px;
  border-radius: var(--radius-3xl);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow-lg);
}

.paper-prose > :first-child {
  margin-top: 0;
}

.paper-prose h1,
.paper-prose h2,
.paper-prose h3,
.paper-prose h4 {
  scroll-margin-top: 112px;
  font-family: "Sora", "Inter", sans-serif;
  color: var(--text);
  letter-spacing: -0.04em;
  line-height: 1.1;
}

.paper-prose h1 {
  font-size: clamp(2rem, 3vw, 2.8rem);
  margin: 0 0 1rem;
}

.paper-prose h2 {
  font-size: clamp(1.45rem, 2vw, 2rem);
  margin: 2.4rem 0 1rem;
  padding-top: 0.4rem;
  border-top: 1px solid rgba(8, 17, 35, 0.08);
}

.paper-prose h3 {
  font-size: 1.15rem;
  margin: 1.6rem 0 0.75rem;
  color: var(--accent-strong);
}

.paper-prose p,
.paper-prose li,
.paper-prose blockquote {
  color: var(--text-soft);
}

.paper-prose strong {
  color: var(--text);
}

.paper-prose a {
  color: var(--accent-strong);
}

.paper-prose ul,
.paper-prose ol {
  padding-left: 1.25rem;
}

.paper-prose li + li {
  margin-top: 0.35rem;
}

.paper-prose hr {
  border: 0;
  border-top: 1px solid rgba(8, 17, 35, 0.08);
  margin: 1.5rem 0;
}

.paper-prose blockquote {
  margin: 1.2rem 0;
  padding: 0.35rem 1rem;
  border-left: 3px solid rgba(37, 99, 235, 0.34);
  background: rgba(37, 99, 235, 0.05);
  border-radius: 0 18px 18px 0;
}

.paper-prose code {
  padding: 0.12rem 0.38rem;
  border-radius: 8px;
  background: rgba(8, 17, 35, 0.06);
  color: var(--accent-strong);
  font-size: 0.94em;
}

.paper-prose pre {
  overflow-x: auto;
  padding: 1rem 1.1rem;
  border-radius: 18px;
  background: #0c1220;
  color: #eef3ff;
}

.paper-prose pre code {
  padding: 0;
  background: transparent;
  color: inherit;
}

.table-wrap {
  overflow-x: auto;
}

.paper-prose table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  border: 1px solid rgba(8, 17, 35, 0.08);
  border-radius: 18px;
  overflow: hidden;
  margin: 1rem 0;
}

.paper-prose th,
.paper-prose td {
  padding: 0.8rem 0.9rem;
  border-bottom: 1px solid rgba(8, 17, 35, 0.08);
  text-align: left;
  vertical-align: top;
  font-size: 0.95rem;
}

.paper-prose th {
  background: rgba(8, 17, 35, 0.05);
  color: var(--text);
}

.reader-note {
  display: grid;
  gap: 12px;
}

.reader-note strong {
  font-family: "Sora", sans-serif;
  font-size: 1rem;
}

.summary-card {
  display: grid;
  gap: 12px;
}

.summary-kpi {
  font-family: "Sora", sans-serif;
  font-size: 2rem;
  line-height: 1;
  letter-spacing: -0.05em;
}

.logo-card {
  padding: 22px;
}

.logo-frame {
  display: grid;
  place-items: center;
  min-height: 210px;
  padding: 22px;
  border-radius: 24px;
  background:
    radial-gradient(circle at 50% 20%, rgba(37, 99, 235, 0.08), transparent 34%),
    linear-gradient(180deg, #fbfdff, #f1f6fc);
  border: 1px solid rgba(8, 17, 35, 0.06);
}

.logo-frame img {
  width: min(160px, 100%);
  height: auto;
}

.logo-meta {
  display: grid;
  gap: 8px;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(8, 17, 35, 0.05);
  color: var(--text-soft);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.selected-logo {
  display: grid;
  grid-template-columns: minmax(220px, 0.34fr) minmax(0, 0.66fr);
  gap: 22px;
  align-items: center;
}

.selected-logo .logo-frame {
  min-height: 240px;
}

.footer {
  padding: 0 0 42px;
}

.footer-inner {
  display: grid;
  gap: 14px;
  padding: 24px 0 0;
  border-top: 1px solid rgba(8, 17, 35, 0.08);
}

.footer-copy {
  max-width: 70ch;
}

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

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--text);
}

.small-note {
  color: var(--text-faint);
  font-size: 0.92rem;
}

.inline-highlight {
  color: var(--accent-strong);
}

.section-anchor {
  scroll-margin-top: 112px;
}

@media (max-width: 1100px) {
  .hero-grid,
  .band-grid,
  .side-by-side,
  .reader-layout,
  .selected-logo {
    grid-template-columns: 1fr;
  }

  .reader-layout {
    gap: 18px;
  }

  .sticky-card {
    position: static;
  }

  .card-grid-4,
  .logo-grid,
  .faq-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .logo-grid--detailed {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .header-inner {
    align-items: start;
    flex-direction: column;
  }

  .site-nav {
    justify-content: flex-start;
  }

  .main-shell {
    padding-top: 28px;
  }

  .card-grid-3,
  .metric-grid,
  .principle-grid,
  .steps,
  .card-grid-2,
  .compare-grid,
  .path-grid,
  .summary-grid,
  .ai-grid,
  .value-grid,
  .signal-matrix {
    grid-template-columns: 1fr;
  }

  .paper-prose {
    padding: 24px;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(var(--container), calc(100% - 24px));
  }

  .hero-panel,
  .band,
  .paper-prose,
  .card,
  .metric-card,
  .signal-card,
  .sticky-card,
  .reader-note,
  .download-strip,
  .quote-block,
  .callout-panel,
  .logo-card,
  .summary-card,
  .side-card,
  .faq-item,
  .timeline-card,
  .compare-card,
  .mini-card,
  .stat-card,
  .step-card {
    padding: 20px;
  }

  .logo-grid,
  .faq-grid,
  .card-grid-4 {
    grid-template-columns: 1fr;
  }

  .download-strip {
    flex-direction: column;
    align-items: flex-start;
  }

  .orbit-node {
    width: 68px;
    font-size: 0.76rem;
  }

  .orbit-figure {
    min-height: 230px;
  }

  .orbit-ring {
    width: 182px;
    height: 182px;
  }

  .orbit-ring::before {
    width: 136px;
    height: 136px;
  }

  .orbit-ring::after {
    width: 226px;
    height: 226px;
  }

  .orbit-core {
    width: 94px;
    height: 94px;
  }

  .pill {
    width: 100%;
    justify-content: flex-start;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .button:hover,
  .card:hover,
  .metric-card:hover,
  .compare-card:hover,
  .logo-card:hover,
  .summary-card:hover,
  .faq-item:hover,
  .timeline-card:hover,
  .stat-card:hover,
  .nav-link:hover,
  .nav-link:focus-visible,
  .nav-link[aria-current="page"] {
    transform: none;
  }
}
rm: none;
  }
}