:root {
  --bg: #06090d;
  --bg-deep: #020304;
  --paper: rgba(9, 15, 22, 0.94);
  --paper-soft: rgba(13, 22, 31, 0.9);
  --panel-strong: rgba(4, 7, 11, 0.98);
  --ink: #f3f7f2;
  --muted: #aeb9c3;
  --line: rgba(199, 222, 216, 0.16);
  --accent: #9dd7ff;
  --accent-soft: rgba(112, 255, 137, 0.13);
  --accent-2: #7cff6b;
  --accent-3: #5ef0a1;
  --warn: #f0b46a;
  --warn-soft: rgba(240, 180, 106, 0.13);
  --max: 1180px;
  --measure: 760px;
  --radius: 8px;
  --shadow: 0 10px 28px rgba(0, 0, 0, 0.18);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  background-color: var(--bg-deep);
  color: var(--ink);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  min-height: 100svh;
  background:
    radial-gradient(circle at 50% 0%, rgba(124, 255, 107, 0.13), transparent 24rem),
    radial-gradient(circle at 82% 18%, rgba(157, 215, 255, 0.12), transparent 30rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0) 130px),
    linear-gradient(180deg, #070b10 0%, #0b1118 38%, #030507 100%),
    var(--bg);
  background-color: var(--bg);
  color: var(--ink);
  font: 18px/1.7 Georgia, "Times New Roman", serif;
  text-rendering: optimizeLegibility;
  position: relative;
}

@supports (-webkit-touch-callout: none) {
  html,
  body {
    background-color: #06090d;
  }

  body {
    -webkit-text-size-adjust: 100%;
  }
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}

body::before {
  background:
    repeating-linear-gradient(90deg, rgba(255,255,255,0.018) 0 1px, transparent 1px 120px),
    repeating-linear-gradient(0deg, rgba(255,255,255,0.012) 0 1px, transparent 1px 120px),
    linear-gradient(180deg, rgba(137, 255, 126, 0.06), transparent 260px);
  opacity: 0.75;
}

body::after {
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.08), transparent 30%);
  opacity: 1;
}

a {
  color: var(--accent);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: #c9dfff;
}

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

:where(
  h1,
  h2,
  h3,
  h4,
  p,
  li,
  .button,
  .badge,
  .status-badge,
  .eyebrow,
  .card,
  .meta-card,
  .note-panel,
  .binding-card,
  .source-card,
  .summary-card,
  .diagram-card
) {
  overflow-wrap: anywhere;
}

:where(
  .hero-refresh > *,
  .visual-pair > *,
  .compare-grid > *,
  .status-board > *,
  .status-grid > *,
  .summary-grid > *,
  .source-grid > *,
  .download-strip > *,
  .binding-controls > *,
  .binding-columns > *,
  .card-grid > *,
  .page-meta > *,
  .card,
  .meta-card,
  .note-panel,
  .binding-card,
  .source-card,
  .summary-card,
  .diagram-card
) {
  min-width: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(3, 6, 9, 0.94);
  backdrop-filter: blur(10px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.14);
}

.nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px 20px;
  flex-wrap: wrap;
}

.brand {
  flex: 0 0 auto;
  color: var(--ink);
  text-decoration: none;
  font: 700 21px/1.1 Georgia, "Times New Roman", serif;
  letter-spacing: 0.01em;
}

.brand span {
  color: var(--accent-2);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink);
  font: 700 12px/1 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
}

.nav-toggle-icon {
  width: 14px;
  height: 10px;
  display: inline-block;
  background:
    linear-gradient(var(--ink), var(--ink)) 0 0 / 100% 2px no-repeat,
    linear-gradient(var(--ink), var(--ink)) 0 4px / 100% 2px no-repeat,
    linear-gradient(var(--ink), var(--ink)) 0 8px / 100% 2px no-repeat;
}

.nav-links {
  display: flex;
  justify-content: flex-end;
  gap: 8px 14px;
  flex-wrap: wrap;
  font: 700 11px/1.25 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  white-space: nowrap;
}

.nav-links a[aria-current="page"],
.nav-links a:hover {
  color: var(--ink);
}

.nav-links a.nav-more {
  opacity: 0.72;
}

/* UX sprint: role lanes, current focus, docs collapse */
.role-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin: 28px 0 12px;
}

.role-card {
  padding: 20px 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--paper-soft);
}

.role-card h2 {
  margin: 0 0 8px;
  font-size: 22px;
}

.role-card ol {
  margin: 12px 0 16px;
  padding-left: 1.2em;
}

.role-card li {
  margin: 0.35em 0;
}

.current-focus {
  margin: 8px 0 28px;
}

.current-focus .eyebrow {
  margin-bottom: 6px;
}

.pillar-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.featured-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
  margin: 18px 0 28px;
}

.featured-strip .card h3 {
  margin-top: 0;
  font-size: 18px;
}

.doc-group[data-doc-collapse] > h2 {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.doc-collapse-toggle {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  border-radius: 8px;
  padding: 6px 10px;
  font: 700 11px/1 system-ui, sans-serif;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
}

.doc-collapse-toggle:hover {
  color: var(--ink);
}

.site-footer-unified .footer-grid {
  grid-template-columns: 1.2fr 1fr 0.7fr;
  gap: 28px;
}

.site-footer-unified .footer-tagline {
  margin: 0 0 8px;
  max-width: 36ch;
}

.site-footer-unified .footer-motto {
  margin: 0;
  font-style: italic;
  opacity: 0.9;
}

.site-footer-unified .footer-label {
  margin: 0 0 10px;
  color: var(--ink);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.site-footer-unified .footer-nav-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
}

.site-footer-unified .footer-nav-inner a {
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
}

.site-footer-unified .footer-nav-inner a:hover {
  color: var(--ink);
  text-decoration: underline;
}

.archive-quiet {
  border-style: dashed;
  opacity: 0.92;
}

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 56px 24px 96px;
}

.hero {
  max-width: 940px;
  padding: 26px 0 28px;
}

.hero-volcanic {
  max-width: none;
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(360px, 1.18fr);
  gap: 30px;
  align-items: center;
  min-height: 620px;
  padding: 34px 0 42px;
}

.hero-copy {
  position: relative;
  z-index: 2;
}

.hero-image-frame {
  margin-top: 0;
  border-color: rgba(124, 255, 107, 0.24);
  box-shadow:
    0 24px 70px rgba(0, 0, 0, 0.52),
    0 0 54px rgba(124, 255, 107, 0.12);
}

.hero-image-frame img {
  min-height: 520px;
  object-fit: cover;
}

.page-meta,
.eyebrow,
.note-date,
.badge,
.meta-label {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.eyebrow,
.note-date {
  margin: 0 0 14px;
  color: var(--accent-2);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.2;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  letter-spacing: -0.01em;
  line-height: 1.16;
  font-weight: 700;
}

h1 {
  margin-bottom: 20px;
  font-size: 48px;
}

h2 {
  margin: 52px 0 16px;
  font-size: 30px;
}

h3 {
  margin: 0 0 10px;
  font-size: 23px;
}

h4 {
  margin: 0 0 8px;
  font-size: 17px;
}

p,
li {
  max-width: var(--measure);
}

p {
  margin: 0 0 18px;
}

.lead {
  max-width: 880px;
  font-size: 24px;
  line-height: 1.6;
  color: #e8f2ec;
}

.kicker,
.small,
.doc-meta,
.meta-value,
.section-note {
  color: var(--muted);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.kicker {
  font-size: 16px;
}

.small,
.doc-meta,
.meta-value,
.section-note {
  font-size: 14px;
  line-height: 1.5;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 22px;
  margin: 28px 0;
}

.card {
  grid-column: span 6;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.035), rgba(255,255,255,0)),
    var(--paper);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.card.full {
  grid-column: 1 / -1;
}

.card.third,
.card.quarter {
  grid-column: span 4;
}

.card p:last-child,
.card li:last-child,
.card ul:last-child {
  margin-bottom: 0;
}

.card p,
.card ul,
.card ol {
  max-width: none;
}

.doc-card,
.media-card {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.buttons {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: 10px;
}

.buttons > * {
  min-width: 0;
}

.button {
  display: inline-block;
  padding: 10px 14px;
  border: 1px solid rgba(197, 210, 226, 0.26);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.03);
  color: #dbe6f3;
  text-decoration: none;
  font: 700 12px/1.1 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease;
}

.button:hover {
  background: rgba(255, 255, 255, 0.06);
}

.button.primary {
  background: rgba(124, 255, 107, 0.15);
  border-color: rgba(124, 255, 107, 0.52);
  color: #f3fff1;
}

.button.muted {
  border-color: var(--line);
  color: var(--muted);
  background: transparent;
}

.button.soft {
  border-color: transparent;
  background: var(--accent-soft);
}

.table-wrap {
  overflow-x: auto;
  margin: 24px 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow);
}

table {
  width: 100%;
  max-width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 15px;
  line-height: 1.45;
}

th,
td {
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
  overflow-wrap: anywhere;
  word-break: break-word;
}

th {
  background: rgba(255, 255, 255, 0.03);
  font-weight: 700;
}

tr:last-child td {
  border-bottom: 0;
}

.callout {
  max-width: var(--measure);
  margin: 28px 0;
  padding: 18px 22px;
  border: 1px solid rgba(157, 215, 255, 0.26);
  border-left: 4px solid var(--accent);
  border-radius: 4px;
  background: rgba(157, 215, 255, 0.07);
}

.callout.warning {
  border-color: rgba(200, 154, 114, 0.22);
  border-left-color: var(--warn);
  background: var(--warn-soft);
}

.callout.tight p:last-child {
  margin-bottom: 0;
}

.list-clean {
  max-width: var(--measure);
  padding-left: 1.2rem;
}

.list-clean li {
  margin: 0.38rem 0;
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.pill-list li,
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.badge.warning {
  background: var(--warn-soft);
  color: var(--warn);
}

.page-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(180px, 100%), 1fr));
  gap: 14px;
  margin: 26px 0 18px;
}

.meta-card {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--paper-soft);
  min-width: 0;
}

.meta-label {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.meta-value {
  color: var(--ink);
  font-size: 14px;
}

.related-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.related-links a {
  display: inline-block;
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.02);
  text-decoration: none;
  font: 700 12px/1.1 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.jump-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0 0;
}

.jump-links a {
  display: inline-block;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  text-decoration: none;
  font: 700 12px/1.1 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.jump-links a:hover {
  color: var(--ink);
  border-color: rgba(197, 210, 226, 0.32);
}

.image-frame {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 2px);
  background: var(--panel-strong);
  box-shadow: var(--shadow);
}

.image-frame:has(> img[src$=".svg"]) {
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-color: rgba(157, 215, 255, 0.5) rgba(255, 255, 255, 0.06);
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.feature-figure,
.atlas-image {
  position: relative;
}

.image-frame.is-zoomable,
.feature-figure.is-zoomable,
.atlas-image.is-zoomable {
  cursor: zoom-in;
}

.image-frame.is-zoomable img,
.feature-figure.is-zoomable img,
.atlas-image.is-zoomable img {
  transition: transform 260ms ease, filter 260ms ease;
}

.image-frame.is-zoomable:hover img,
.image-frame.is-zoomable:focus-visible img,
.feature-figure.is-zoomable:hover img,
.feature-figure.is-zoomable:focus-visible img,
.atlas-image.is-zoomable:hover img,
.atlas-image.is-zoomable:focus-visible img {
  transform: scale(1.018);
  filter: brightness(1.08) contrast(1.04);
}

.image-frame.is-zoomable:focus-visible,
.feature-figure.is-zoomable:focus-visible,
.atlas-image.is-zoomable:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 4px;
}

.image-zoom-hint {
  position: absolute;
  right: 14px;
  top: 14px;
  z-index: 2;
  padding: 7px 10px;
  border: 1px solid rgba(243, 247, 242, 0.22);
  border-radius: 999px;
  background: rgba(2, 3, 4, 0.76);
  color: var(--ink);
  font: 700 11px/1.1 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.is-zoomable:hover .image-zoom-hint,
.is-zoomable:focus-visible .image-zoom-hint {
  opacity: 1;
  transform: translateY(0);
}

.image-frame img {
  width: 100%;
  height: auto;
  display: block;
}

.image-lightbox[hidden] {
  display: none;
}

.image-lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: clamp(18px, 3vw, 42px);
  background:
    radial-gradient(circle at 50% 8%, rgba(124, 255, 107, 0.15), transparent 34rem),
    rgba(1, 2, 3, 0.92);
  backdrop-filter: blur(16px);
}

.has-image-lightbox {
  overflow: hidden;
}

.image-lightbox__stage {
  display: grid;
  gap: 14px;
  max-width: min(96vw, 1500px);
  max-height: 92vh;
}

.image-lightbox__image {
  display: block;
  width: auto;
  max-width: 100%;
  max-height: min(82vh, 980px);
  margin: 0 auto;
  border: 1px solid rgba(243, 247, 242, 0.16);
  border-radius: calc(var(--radius) + 4px);
  background: var(--panel-strong);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.62);
  object-fit: contain;
}

.image-lightbox__caption {
  width: min(100%, 980px);
  max-width: none;
  margin: 0 auto;
  color: var(--muted);
  text-align: center;
  font: 600 14px/1.5 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.image-lightbox__close {
  position: fixed;
  top: clamp(14px, 2vw, 26px);
  right: clamp(14px, 2vw, 26px);
  z-index: 101;
  padding: 10px 13px;
  border: 1px solid rgba(243, 247, 242, 0.24);
  border-radius: 999px;
  background: rgba(6, 9, 13, 0.86);
  color: var(--ink);
  cursor: pointer;
  font: 700 12px/1 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.image-lightbox__close:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 3px;
}

.caption {
  padding: 12px 16px 14px;
  color: var(--muted);
  font: 600 12px/1.5 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: rgba(255, 255, 255, 0.02);
}

.visual-feature {
  margin: 36px 0 22px;
}

.visual-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 22px;
  align-items: stretch;
}

.visual-card {
  height: 100%;
}

.figure-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.hero-aside {
  display: grid;
  gap: 20px;
}

.hero-aside .card {
  height: 100%;
}

.hero-tagline {
  color: var(--accent-2);
  font: 700 13px/1.4 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.doc-group {
  margin-top: 42px;
}

.doc-grid,
.section-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 20px;
  margin-top: 18px;
}

.doc-grid .card,
.section-grid .card {
  grid-column: span 6;
}

.doc-grid .card h3,
.section-grid .card h3 {
  margin-bottom: 12px;
}

.meta-inline {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font: 600 12px/1.4 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  min-width: 0;
  overflow-wrap: anywhere;
}

.prose-columns {
  column-width: 320px;
  column-gap: 32px;
}

.prose-columns p,
.prose-columns ul {
  break-inside: avoid;
}

.video-frame {
  position: relative;
  overflow: hidden;
  width: 100%;
  padding-top: 56.25%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #000;
  box-shadow: var(--shadow);
}

.video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.subtitle-panel {
  margin-top: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.subtitle-panel[open] {
  padding-bottom: 12px;
}

.subtitle-panel summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 20px;
  font: 700 16px/1.3 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.subtitle-panel summary::-webkit-details-marker {
  display: none;
}

.subtitle-body {
  padding: 0 20px 18px;
}

.search-label {
  display: block;
  margin: 14px 0 10px;
  color: var(--muted);
  font: 600 13px/1.35 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.search-label input {
  width: 100%;
  margin-top: 6px;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink);
  font: inherit;
}

.subtitle-list {
  display: grid;
  gap: 10px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  max-height: 420px;
  overflow: auto;
}

.subtitle-item {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.subtitle-item:last-child {
  border-bottom: 0;
}

.subtitle-time {
  font: 700 13px/1.4 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.subtitle-text {
  font-size: 16px;
  line-height: 1.55;
}

.subtitle-empty {
  margin-top: 14px;
  color: var(--muted);
  font: 600 13px/1.4 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 24px;
  align-items: start;
}

.quote-block {
  margin: 28px 0;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.quote-block p:last-child {
  margin-bottom: 0;
}

.site-footer {
  padding: 30px 24px 44px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font: 14px/1.55 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: rgba(255, 255, 255, 0.02);
}

.site-footer .inner {
  max-width: var(--max);
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.footer-title {
  margin: 0 0 6px;
  color: var(--ink);
  font-weight: 700;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin-top: 12px;
}

.footer-nav a {
  color: var(--muted);
  text-decoration: none;
}

.footer-nav a:hover {
  color: var(--ink);
}

article {
  max-width: var(--measure);
}

article.wide,
section.wide {
  max-width: 980px;
}

code,
pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

code {
  padding: 0.1em 0.25em;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.06);
}

pre {
  overflow: auto;
  padding: 16px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  font-size: 14px;
}

.hide {
  display: none !important;
}

@media (max-width: 920px) {
  .hero-volcanic,
  .figure-grid,
  .visual-grid,
  .split,
  .footer-grid,
  .doc-card,
  .media-card {
    display: block;
  }

  .hero-volcanic {
    min-height: 0;
  }

  .hero-image-frame {
    margin-top: 26px;
  }

  .figure-grid .image-frame + .image-frame {
    margin-top: 20px;
  }
}

@media (max-width: 1120px) { 
  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 8px 0 4px;
    border-top: 1px solid var(--line);
  }

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

  .nav-links a {
    padding: 10px 4px;
    width: 100%;
  }

  .role-grid,
  .pillar-grid {
    grid-template-columns: 1fr;
  }

  .site-footer-unified .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 780px) {
  body {
    font-size: 17px;
  }

  .nav {
    flex-direction: row;
    align-items: center;
  }

  .nav-links {
    gap: 4px;
  }

  main {
    padding-top: 34px;
  }

  h1 {
    font-size: 38px;
  }

  h2 {
    font-size: 28px;
  }

  .lead {
    font-size: 20px;
  }

  .hero-image-frame img {
    min-height: 340px;
  }

  .card,
  .card.third,
  .card.full,
  .card.quarter,
  .doc-grid .card,
  .section-grid .card {
    grid-column: 1 / -1;
  }

  .page-meta {
    grid-template-columns: 1fr;
  }

  .subtitle-item {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}


/* Audit 2026-07-13: persistent footer nav + archival / pivot callouts */
.site-footer-nav {
  border-top: 1px solid rgba(0,0,0,0.08);
  margin-top: 2rem;
  padding: 1.25rem 1rem 2rem;
  background: rgba(0,0,0,0.02);
}
.footer-nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1.1rem;
  font-size: 0.92rem;
}
.footer-nav-inner a {
  color: inherit;
  text-decoration: none;
  opacity: 0.9;
}
.footer-nav-inner a:hover { text-decoration: underline; opacity: 1; }
.archival-banner { margin: 1rem auto; max-width: 960px; }
.pivot-callout { margin: 1.25rem 0 1.75rem; }

/* ==========================================================================
   FX diagrams — native HTML/CSS explanatory graphics (not bolted images)
   Minimal, logical, type-led. Reuses site tokens.
   ========================================================================== */

.fx-diagram {
  margin: 28px 0 36px;
  padding: 22px 20px 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 48%),
    rgba(6, 10, 15, 0.72);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.18);
}

.fx-diagram > .fx-diagram__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 16px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.fx-diagram__kicker {
  margin: 0;
  font: 700 11px/1.3 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-2);
}

.fx-diagram__title {
  margin: 0;
  font: 700 18px/1.25 Georgia, "Times New Roman", serif;
  color: var(--ink);
}

.fx-diagram__caption {
  margin: 14px 0 0;
  color: var(--muted);
  font: 14px/1.5 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.fx-diagram__caption a {
  color: var(--accent);
}

/* Horizontal process spine */
.fx-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
}

.fx-flow > li {
  display: flex;
  align-items: stretch;
  flex: 1 1 120px;
  min-width: 108px;
}

.fx-step {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px 12px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.025);
}

.fx-step__n {
  font: 700 11px/1 system-ui, sans-serif;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0.9;
}

.fx-step__label {
  font: 700 15px/1.25 Georgia, "Times New Roman", serif;
  color: var(--ink);
}

.fx-step__hint {
  margin: 0;
  font: 13px/1.4 system-ui, sans-serif;
  color: var(--muted);
}

.fx-flow__join {
  flex: 0 0 18px;
  align-self: center;
  width: 18px;
  height: 2px;
  margin: 0 2px;
  background: linear-gradient(90deg, rgba(157, 215, 255, 0.15), rgba(124, 255, 107, 0.55), rgba(157, 215, 255, 0.15));
  position: relative;
}

.fx-flow__join::after {
  content: "";
  position: absolute;
  right: -1px;
  top: 50%;
  width: 6px;
  height: 6px;
  border-right: 1.5px solid rgba(124, 255, 107, 0.75);
  border-top: 1.5px solid rgba(124, 255, 107, 0.75);
  transform: translateY(-50%) rotate(45deg);
}

/* Vertical stack ladder */
.fx-stack {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: fx-stack;
}

.fx-stack > li {
  display: grid;
  grid-template-columns: 42px 1fr auto;
  gap: 12px 14px;
  align-items: center;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.02);
  counter-increment: fx-stack;
}

.fx-stack > li::before {
  content: counter(fx-stack, decimal-leading-zero);
  font: 700 12px/1 system-ui, sans-serif;
  letter-spacing: 0.06em;
  color: var(--accent-2);
  opacity: 0.85;
}

.fx-stack__name {
  margin: 0;
  font: 700 16px/1.25 Georgia, "Times New Roman", serif;
  color: var(--ink);
}

.fx-stack__role {
  margin: 2px 0 0;
  font: 13px/1.4 system-ui, sans-serif;
  color: var(--muted);
}

.fx-stack__bound {
  margin: 0;
  max-width: 28ch;
  text-align: right;
  font: 600 11px/1.35 system-ui, sans-serif;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--warn);
  opacity: 0.95;
}

.fx-stack > li a.fx-stack__name {
  color: var(--ink);
  text-decoration: none;
}

.fx-stack > li a.fx-stack__name:hover {
  color: var(--accent);
}

/* Three isolated namespaces */
.fx-lanes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.fx-lane {
  padding: 14px 14px 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.18);
}

.fx-lane__tag {
  margin: 0 0 8px;
  font: 700 10px/1 system-ui, sans-serif;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.fx-lane__title {
  margin: 0 0 10px;
  font: 700 15px/1.25 Georgia, serif;
}

.fx-lane ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.fx-lane li {
  position: relative;
  padding: 5px 0 5px 12px;
  font: 13px/1.4 system-ui, sans-serif;
  color: var(--muted);
  border-top: 1px solid rgba(199, 222, 216, 0.08);
}

.fx-lane li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.85em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent-2);
  opacity: 0.7;
}

.fx-lane--warn {
  border-color: rgba(240, 180, 106, 0.28);
}

.fx-lane--warn .fx-lane__tag {
  color: var(--warn);
}

.fx-lane__rule {
  margin: 12px 0 0;
  padding-top: 10px;
  border-top: 1px dashed rgba(240, 180, 106, 0.35);
  font: 600 12px/1.4 system-ui, sans-serif;
  color: var(--warn);
}

/* Specificity / measurement loop as rail */
.fx-rail {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.fx-rail > li {
  position: relative;
  padding: 12px 10px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.025);
  text-align: center;
}

.fx-rail > li:not(:last-child)::after {
  content: "→";
  position: absolute;
  right: -10px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1;
  color: var(--accent-2);
  font: 700 14px/1 system-ui, sans-serif;
  opacity: 0.75;
}

.fx-rail__n {
  display: block;
  margin-bottom: 6px;
  font: 700 10px/1 system-ui, sans-serif;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.fx-rail__label {
  display: block;
  font: 700 13px/1.25 Georgia, serif;
  color: var(--ink);
}

.fx-rail__hint {
  display: block;
  margin-top: 6px;
  font: 12px/1.35 system-ui, sans-serif;
  color: var(--muted);
}

/* Binary boundary panel */
.fx-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.fx-split__col {
  padding: 14px 16px;
  border-radius: 10px;
  border: 1px solid var(--line);
}

.fx-split__col--yes {
  background: rgba(124, 255, 107, 0.05);
  border-color: rgba(124, 255, 107, 0.22);
}

.fx-split__col--no {
  background: rgba(240, 180, 106, 0.05);
  border-color: rgba(240, 180, 106, 0.28);
}

.fx-split__col h3 {
  margin: 0 0 10px;
  font: 700 12px/1.2 system-ui, sans-serif;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.fx-split__col--yes h3 { color: var(--accent-2); }
.fx-split__col--no h3 { color: var(--warn); }

.fx-split__col ul {
  margin: 0;
  padding-left: 1.1em;
  color: var(--muted);
  font: 14px/1.5 system-ui, sans-serif;
}

.fx-split__col li { margin: 0.3em 0; }

/* Compact matrix for Ageometrics idea */
.fx-matrix {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  font: 13px/1.4 system-ui, sans-serif;
}

.fx-matrix > * {
  padding: 12px 14px;
  background: rgba(6, 10, 15, 0.92);
}

.fx-matrix__h {
  font: 700 11px/1.2 system-ui, sans-serif;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(255, 255, 255, 0.03) !important;
}

.fx-matrix__rowlabel {
  font-weight: 700;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
}

.fx-matrix .muted { color: var(--muted); }

/* Hero can sit diagram-first on large screens */
.hero-diagram {
  max-width: none;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 1.05fr);
  gap: 28px;
  align-items: start;
  padding: 28px 0 18px;
}

.hero-diagram .fx-diagram {
  margin: 0;
}

@media (max-width: 920px) {
  .fx-stack > li {
    grid-template-columns: 36px 1fr;
  }

  .fx-stack__bound {
    grid-column: 2;
    text-align: left;
    max-width: none;
  }

  .fx-lanes,
  .fx-split,
  .fx-rail {
    grid-template-columns: 1fr;
  }

  .fx-rail > li:not(:last-child)::after {
    content: "↓";
    right: auto;
    left: 50%;
    top: auto;
    bottom: -14px;
    transform: translateX(-50%);
  }

  .fx-flow__join {
    display: none;
  }

  .fx-matrix {
    grid-template-columns: 1fr;
  }

  .hero-diagram {
    grid-template-columns: 1fr;
  }
}

/* Public narrative refresh, 2026-07-21 */
.nav-groups,
.nav-group {
  display: flex;
  align-items: center;
}

.nav-groups {
  gap: 8px 18px;
}

.nav-group {
  gap: 7px;
}

.nav-group + .nav-group {
  padding-left: 16px;
  border-left: 1px solid var(--line);
}

.nav-group-label {
  color: #70808d;
  font-size: 9px;
  letter-spacing: 0.12em;
}

.nav-links .nav-group a {
  padding: 6px 3px;
}

.nav-links .nav-group a[aria-current="page"] {
  box-shadow: inset 0 -2px 0 var(--accent-2);
}

.home-refresh,
.page-shell {
  padding-bottom: 112px;
}

.hero-refresh {
  max-width: none;
  min-height: min(780px, calc(100vh - 74px));
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(420px, 0.96fr);
  align-items: center;
  gap: clamp(30px, 4vw, 54px);
  padding: 40px 0 52px;
}

.hero-refresh h1 {
  max-width: 15ch;
  font-size: clamp(46px, 5.2vw, 68px);
  line-height: 1.02;
}

.hero-refresh .lead {
  max-width: 650px;
  font-size: clamp(20px, 2vw, 26px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0;
}

.hero-actions .button:first-child,
.invitation .button:first-of-type {
  border-color: rgba(124, 255, 107, 0.58);
  background: rgba(124, 255, 107, 0.14);
  color: #efffed;
}

.button.secondary {
  background: rgba(255, 255, 255, 0.025);
}

.research-question,
.claim-boundary,
.fine-print,
.footer-boundary {
  color: var(--muted);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

.argument {
  max-width: 760px;
  color: #e8f2ec;
  font-size: 22px;
  line-height: 1.58;
}

.research-question {
  max-width: 62ch;
  padding-left: 16px;
  border-left: 2px solid var(--accent);
  font-size: 15px;
}

.claim-boundary {
  max-width: 68ch;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.025);
  font-size: 13px;
}

.fine-print,
.footer-boundary {
  font-size: 13px;
}

.footer-boundary {
  max-width: 46ch;
  margin-top: 14px;
}

.hero-visual,
.inline-figure {
  margin: 0;
  padding: 14px;
  border: 1px solid rgba(157, 215, 255, 0.2);
  border-radius: 16px;
  background: linear-gradient(145deg, rgba(157, 215, 255, 0.045), rgba(124, 255, 107, 0.035));
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-color: rgba(157, 215, 255, 0.5) rgba(255, 255, 255, 0.06);
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.hero-visual img,
.inline-figure img {
  display: block;
  width: 100%;
  border-radius: 10px;
}

.hero-visual img[src$=".svg"],
.inline-figure img[src$=".svg"],
.image-frame img[src$=".svg"],
.diagram-card img[src$=".svg"] {
  max-width: none;
  min-width: clamp(720px, 76vw, 960px);
}

.hero-refresh:has(.hero-visual img[src$=".svg"]) {
  grid-template-columns: 1fr;
  min-height: 0;
}

.hero-refresh:has(.hero-visual img[src$=".svg"]) .hero-copy {
  max-width: 820px;
}

.hero-refresh:has(.hero-visual img[src$=".svg"]) .hero-visual {
  width: 100%;
  max-width: 960px;
}

@media (min-width: 1281px) {
  .split:has(.inline-figure img[src$=".svg"]),
  .visual-pair:has(.inline-figure img[src$=".svg"]),
  .compare-grid:has(.diagram-card img[src$=".svg"]) {
    grid-template-columns: minmax(0, 0.82fr) minmax(720px, 1.18fr);
  }

  .hero-refresh .hero-visual img[src$=".svg"],
  .split .inline-figure img[src$=".svg"],
  .visual-pair .inline-figure img[src$=".svg"],
  .compare-grid .diagram-card img[src$=".svg"] {
    max-width: 100%;
    min-width: 100%;
  }
}

@media (max-width: 1280px) {
  .split:has(.inline-figure img[src$=".svg"]),
  .visual-pair:has(.inline-figure img[src$=".svg"]),
  .compare-grid:has(.diagram-card img[src$=".svg"]) {
    grid-template-columns: 1fr;
  }
}

.hero-visual figcaption,
.inline-figure figcaption {
  max-width: 72ch;
  padding: 10px 4px 0;
  color: var(--muted);
  font: 13px/1.5 system-ui, sans-serif;
}

.section {
  padding: 64px 0;
  border-top: 1px solid var(--line);
}

.section > h2:first-child,
.section > .eyebrow + h2,
.section-heading h2,
.split h2:first-of-type,
.visual-pair h2:first-of-type,
.callout h2:first-of-type,
.card h2,
.layer-sequence h2,
.neighbor-list h2 {
  margin-top: 0;
}

.section-narrow,
.page-hero.narrow {
  max-width: 880px;
}

.page-hero {
  padding: 42px 0 54px;
}

.page-hero h1 {
  max-width: 19ch;
  font-size: clamp(44px, 6vw, 70px);
}

.card-grid {
  display: grid;
  gap: 18px;
}

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

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

.card-grid .card {
  display: block;
  min-width: 0;
}

.card-grid .card h2,
.card-grid .card h3 {
  margin: 0 0 12px;
}

.card-grid .card a:last-child {
  display: inline-block;
  margin-top: 6px;
}

.process-chain,
.review-steps,
.layer-sequence {
  margin: 0;
  padding: 0;
  list-style: none;
}

.process-chain {
  display: grid;
  gap: 10px;
}

.process-chain li {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 14px;
  max-width: none;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.025);
}

.process-chain strong,
.process-chain span,
.review-steps strong,
.review-steps span {
  font-family: system-ui, sans-serif;
}

.process-chain strong {
  color: var(--accent-2);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.process-chain span {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.visual-pair,
.namespace-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  align-items: center;
}

.namespace-grid {
  align-items: stretch;
}

.namespace-grid .card {
  display: block;
  max-width: none;
}

.layer-sequence {
  counter-reset: layers;
  display: grid;
  gap: 14px;
}

.layer-sequence li {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 20px;
  max-width: none;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--paper-soft);
}

.layer-sequence li > span {
  color: var(--accent-2);
  font: 700 13px/1 system-ui, sans-serif;
  letter-spacing: 0.12em;
}

.layer-sequence p {
  max-width: 78ch;
}

.check-list,
.link-list,
.citation-list {
  padding-left: 1.2em;
}

.check-list li,
.link-list li,
.citation-list li {
  margin: 0.5em 0;
}

.review-steps {
  counter-reset: review;
  display: grid;
  gap: 12px;
  max-width: 900px;
}

.review-steps li {
  counter-increment: review;
  display: grid;
  grid-template-columns: minmax(170px, 0.34fr) 1fr;
  gap: 20px;
  max-width: none;
  padding: 18px 20px;
  border-left: 2px solid var(--accent-2);
  background: rgba(255, 255, 255, 0.025);
}

.review-steps strong::before {
  content: counter(review, decimal-leading-zero) " ";
  color: var(--accent-2);
}

.review-steps span {
  color: var(--muted);
}

.neighbor-list {
  display: grid;
  gap: 22px;
}

.neighbor-list article {
  max-width: none;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 34px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--paper-soft);
}

.citation-list {
  margin: 0;
  color: var(--muted);
  font: 14px/1.5 system-ui, sans-serif;
}

.invitation {
  max-width: 900px;
}

.text-link {
  font-weight: 700;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.page-nav {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
}

.page-nav a {
  display: inline-block;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.035);
  text-decoration: none;
  font: 700 12px/1.1 system-ui, sans-serif;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.compare-grid,
.status-grid,
.summary-grid,
.download-strip,
.binding-controls,
.expertise-grid,
.source-grid {
  display: grid;
  gap: 16px;
}

.compare-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

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

.download-strip,
.expertise-grid {
  grid-template-columns: repeat(auto-fit, minmax(min(220px, 100%), 1fr));
}

.source-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.binding-controls {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: end;
}

.control-field {
  display: grid;
  gap: 8px;
  max-width: none;
}

.control-field label,
.control-label {
  color: var(--muted);
  font: 700 12px/1.2 system-ui, sans-serif;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.control-field select,
.control-field input {
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink);
  font: 14px/1.4 system-ui, sans-serif;
}

.control-field select option {
  color: #111;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  max-width: fit-content;
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink);
  font: 700 11px/1 system-ui, sans-serif;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.status-badge.is-frozen {
  border-color: rgba(124, 255, 107, 0.42);
  background: rgba(124, 255, 107, 0.12);
}

.status-badge.is-local {
  border-color: rgba(157, 215, 255, 0.36);
  background: rgba(157, 215, 255, 0.12);
}

.status-badge.is-spec {
  border-color: rgba(240, 180, 106, 0.4);
  background: rgba(240, 180, 106, 0.12);
}

.status-badge.is-applied {
  border-color: rgba(189, 168, 255, 0.42);
  background: rgba(189, 168, 255, 0.12);
}

.status-badge.is-external,
.status-badge.is-negative,
.status-badge.is-unresolved {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.05);
}

.diagram-card,
.note-panel,
.binding-card,
.source-card,
.summary-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--paper-soft);
  box-shadow: var(--shadow);
}

.diagram-card {
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-color: rgba(157, 215, 255, 0.5) rgba(255, 255, 255, 0.06);
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.diagram-card figure,
.diagram-card img,
.diagram-card svg {
  width: 100%;
}

.diagram-card figcaption,
.binding-card figcaption {
  margin-top: 12px;
  color: var(--muted);
  font: 14px/1.5 system-ui, sans-serif;
}

.stack-list,
.detail-list,
.source-list,
.key-list {
  margin: 0;
  padding-left: 1.2em;
}

.stack-list li,
.detail-list li,
.source-list li,
.key-list li {
  margin: 0.45em 0;
}

.note-panel h3,
.summary-card h3,
.source-card h3,
.binding-card h3 {
  margin-top: 0;
}

.binding-summary {
  margin: 12px 0 0;
  color: var(--muted);
  font: 14px/1.5 system-ui, sans-serif;
}

.binding-list {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

.binding-header,
.binding-tags,
.binding-links,
.status-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
  align-items: center;
}

.binding-header {
  justify-content: space-between;
}

.binding-tags {
  margin: 10px 0 14px;
}

.binding-tag {
  display: inline-flex;
  align-items: center;
  padding: 5px 9px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--muted);
  font: 700 11px/1 system-ui, sans-serif;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.binding-formula {
  margin: 16px 0;
  padding: 14px 16px;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.24);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.binding-formula code,
.code-line {
  display: block;
  white-space: pre-wrap;
  word-break: break-word;
  font: 14px/1.6 "Cascadia Code", Consolas, "Courier New", monospace;
}

.binding-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 20px;
}

.binding-meta {
  color: var(--muted);
  font: 14px/1.55 system-ui, sans-serif;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.binding-card span,
.binding-tag,
.binding-links,
.source-list,
.source-list li {
  overflow-wrap: anywhere;
  word-break: break-word;
}

.binding-meta strong,
.binding-links strong {
  color: var(--ink);
}

.binding-links a {
  font: 700 12px/1.2 system-ui, sans-serif;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.status-strip {
  margin: 12px 0 14px;
}

.status-board {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.status-board .card p:last-child {
  margin-bottom: 0;
}

.experiment-flow {
  display: grid;
  gap: 14px;
  counter-reset: flow;
}

.experiment-flow li {
  max-width: none;
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 16px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--paper-soft);
}

.experiment-flow li::before {
  counter-increment: flow;
  content: counter(flow, decimal-leading-zero);
  color: var(--accent-2);
  font: 700 12px/1 system-ui, sans-serif;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.micro-copy {
  color: var(--muted);
  font: 14px/1.5 system-ui, sans-serif;
}

.page-shell .section > h2:first-child,
.page-shell .section > .eyebrow + h2 {
  margin-top: 0;
}

.research-article h2 {
  margin-top: 34px;
}

.research-article h3 {
  margin-top: 22px;
}

.research-article blockquote {
  margin: 18px 0;
  padding: 14px 18px;
  border-left: 3px solid var(--accent-2);
  background: rgba(255, 255, 255, 0.03);
}

.research-article pre {
  margin: 18px 0;
  padding: 14px 16px;
  overflow-x: auto;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.28);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.research-article code {
  font: 14px/1.55 "Cascadia Code", Consolas, "Courier New", monospace;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--accent-2);
  outline-offset: 4px;
}

@media (max-width: 1040px) {
  .hero-refresh {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .hero-refresh .hero-copy {
    max-width: 820px;
  }

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

  .summary-grid,
  .status-grid,
  .status-board,
  .binding-controls,
  .binding-columns {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 1120px) { 
  .nav-links.nav-groups {
    display: flex;
  }

  .js .nav-links.nav-groups {
    display: none;
  }

  .js .nav-links.nav-groups.is-open {
    display: flex;
  }

  .nav-toggle {
    display: none;
  }

  .js .nav-toggle {
    display: inline-flex;
  }

  .nav-groups,
  .nav-group {
    align-items: stretch;
  }

  .nav-groups {
    gap: 10px;
  }

  .nav-group {
    width: 100%;
    display: grid;
    grid-template-columns: minmax(82px, 0.34fr) 1fr 1fr;
    gap: 4px 10px;
  }

  .nav-group + .nav-group {
    padding: 8px 0 0;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .nav-group-label {
    padding: 11px 4px 8px;
  }

  .nav-links .nav-group a {
    padding: 9px 4px;
  }

  .visual-pair,
  .namespace-grid,
  .neighbor-list article {
    grid-template-columns: 1fr;
  }

  .compare-grid,
  .source-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  main {
    padding-right: clamp(12px, 4.5vw, 24px);
    padding-left: clamp(12px, 4.5vw, 24px);
  }

  .doc-grid,
  .section-grid {
    grid-template-columns: 1fr;
  }

  .doc-grid .card,
  .section-grid .card {
    grid-column: auto;
  }

  .card-grid.three,
  .card-grid.four {
    grid-template-columns: 1fr;
  }

  .hero-refresh h1,
  .page-hero h1 {
    font-size: clamp(39px, 12vw, 56px);
  }

  .argument {
    font-size: 19px;
  }

  .section {
    padding: 46px 0;
  }

  .card,
  .note-panel,
  .binding-card,
  .source-card,
  .summary-card,
  .diagram-card {
    padding: clamp(14px, 4vw, 22px);
  }

  .process-chain li,
  .review-steps li,
  .layer-sequence li {
    grid-template-columns: 1fr;
  }

  .experiment-flow li {
    grid-template-columns: 1fr;
  }

  .nav-group {
    grid-template-columns: minmax(74px, 0.3fr) 1fr;
  }

  .summary-grid,
  .status-grid,
  .status-board,
  .binding-controls,
  .binding-columns {
    grid-template-columns: 1fr;
  }
}

@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;
  }
}