/* Git-Up supporting presentation layer.
   The product keeps its ticker, route texture, reveal hooks, signature strip,
   command palette, workspace field, and contribution header. Motion remains
   transform/opacity based; cursor glows, recurring sheens, and scale effects
   are intentionally absent. */

/* Health values use fixed-width numerals so count-up updates do not reflow. */
.ring-value { font-variant-numeric: tabular-nums; }

/* A contribution-square field replaces the static dot wallpaper. The fixed
   layer moves as one GPU-composited sheet; individual live pixels remain on
   the existing canvases, so this foundation stays inexpensive. */
html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}
body::after {
  inset: -40px;
  background-image: conic-gradient(from 270deg at 5px 5px, var(--dot) 25%, transparent 0);
  background-size: 32px 32px;
  opacity: .2;
  animation: contribution-drift 38s var(--ease) infinite alternate;
  will-change: transform;
}
[data-theme="light"] body::after { opacity: .14; }
@keyframes contribution-drift {
  from { transform: translate3d(-16px, 0, 0); }
  to { transform: translate3d(16px, -16px, 0); }
}

/* Balanced headings and readable body-copy rags, with safe long-word wraps. */
h1, h2, h3, h4 { text-wrap: balance; }
.hero-copy, .repo-description, .panel-subtitle, .recovery-diagnosis { text-wrap: pretty; }

/* ScrollReveal's once-only viewport model, implemented on the existing
   observer: brief vertical context plus opacity, never scroll-bound motion.
   Without JS, nothing is hidden; rerenders never reseal revealed content. */
html.reveal-armed:not(.reveal-done) [data-reveal] {
  opacity: 0;
  transform: translate3d(0, 12px, 0);
}
html.reveal-armed:not(.reveal-done) [data-reveal].revealed {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  transition: opacity var(--dur-major) var(--ease), transform var(--dur-major) var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}
html.reveal-armed:not(.reveal-done) [data-reveal-stagger] > * {
  opacity: 0;
  transform: translate3d(0, 8px, 0);
}
html.reveal-armed:not(.reveal-done) [data-reveal-stagger].revealed > * {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  transition: opacity var(--dur-normal) var(--ease), transform var(--dur-normal) var(--ease);
}
html.reveal-armed:not(.reveal-done) [data-reveal-stagger].revealed > *:nth-child(1) { transition-delay: calc(var(--stagger-step) * 0); }
html.reveal-armed:not(.reveal-done) [data-reveal-stagger].revealed > *:nth-child(2) { transition-delay: calc(var(--stagger-step) * 1); }
html.reveal-armed:not(.reveal-done) [data-reveal-stagger].revealed > *:nth-child(3) { transition-delay: calc(var(--stagger-step) * 2); }
html.reveal-armed:not(.reveal-done) [data-reveal-stagger].revealed > *:nth-child(4) { transition-delay: calc(var(--stagger-step) * 3); }
html.reveal-armed:not(.reveal-done) [data-reveal-stagger].revealed > *:nth-child(5) { transition-delay: calc(var(--stagger-step) * 4); }
html.reveal-armed:not(.reveal-done) [data-reveal-stagger].revealed > *:nth-child(6) { transition-delay: calc(var(--stagger-step) * 5); }
html.reveal-armed:not(.reveal-done) [data-reveal-stagger].revealed > *:nth-child(7) { transition-delay: calc(var(--stagger-step) * 6); }
html.reveal-armed:not(.reveal-done) [data-reveal-stagger].revealed > *:nth-child(8) { transition-delay: calc(var(--stagger-step) * 7); }
html.reveal-armed:not(.reveal-done) [data-reveal-stagger].revealed > *:nth-child(9) { transition-delay: calc(var(--stagger-step) * 8); }
html.reveal-armed:not(.reveal-done) [data-reveal-stagger].revealed > *:nth-child(10) { transition-delay: calc(var(--stagger-step) * 9); }
html.reveal-armed:not(.reveal-done) [data-reveal-stagger].revealed > *:nth-child(11) { transition-delay: calc(var(--stagger-step) * 10); }
html.reveal-armed:not(.reveal-done) [data-reveal-stagger].revealed > *:nth-child(12) { transition-delay: calc(var(--stagger-step) * 11); }

/* Failure-signature strip: a slow, data-bearing loop with hover pause and a
   static reduced-motion mode. The adjacent screen-reader source carries the
   same labels without duplication. */
.sig-marquee {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: var(--panel-soft);
}
.sig-marquee:not(.sig-static) {
  -webkit-mask-image: linear-gradient(90deg, transparent, var(--text) 7%, var(--text) 93%, transparent);
          mask-image: linear-gradient(90deg, transparent, var(--text) 7%, var(--text) 93%, transparent);
}
.sig-marquee-track {
  display: flex;
  width: max-content;
  animation: signature-loop 44s linear infinite;
}
.sig-marquee:hover .sig-marquee-track,
body:focus-within .sig-marquee-track { animation-play-state: paused; }
.sig-marquee-group {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
}
.sig-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 320px;
  padding: 4px 9px;
  color: var(--muted);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 9.5px;
  line-height: 1.5;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sig-chip .sig-rank {
  flex: none;
  color: var(--route);
  font-family: var(--mono);
  font-size: 8.5px;
  letter-spacing: .05em;
}
.sig-chip em {
  flex: none;
  color: var(--muted-2);
  font-style: normal;
  font-family: var(--mono);
  font-size: 8.5px;
}
.sig-static .sig-marquee-group { flex-wrap: wrap; }
@keyframes signature-loop {
  to { transform: translateX(-50%); }
}

/* Keyboard-first command palette. */
.palette-modal {
  width: min(560px, 100%);
  padding: 0;
  overflow: hidden;
}
.palette-input-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  color: var(--muted-2);
}
.palette-input-wrap:focus-within { border-bottom-color: var(--route); }
.palette-input {
  min-width: 0;
  flex: 1;
  height: 26px;
  color: var(--text);
  background: transparent;
  border: 0;
  outline: 2px solid transparent;
  outline-offset: 1px;
  font-size: 13px;
}
.palette-input:focus-visible {
  outline-color: var(--route);
}
.palette-input::placeholder { color: var(--muted-2); }
.palette-list {
  max-height: 320px;
  overflow-y: auto;
  padding: 6px;
  scrollbar-width: thin;
}
.palette-group-label {
  padding: 9px 11px 4px;
  color: var(--muted-2);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.palette-option {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 11px;
  color: var(--muted);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 9px;
  font-size: 12px;
  font-weight: 600;
  text-align: left;
  transition: background-color var(--dur-instant) var(--ease), color var(--dur-instant) var(--ease);
}
.palette-option:hover { color: var(--text); background: var(--panel-raised); }
.palette-option.active {
  color: var(--text);
  background: var(--route-dim);
  border-color: var(--route-line);
}
.palette-option .palette-ic { display: grid; place-items: center; flex: none; width: 22px; color: var(--muted); }
.palette-option.active .palette-ic { color: var(--route); }
.palette-hint {
  margin-left: auto;
  flex: none;
  color: var(--muted-2);
  font-family: var(--mono);
  font-size: 9px;
}
.palette-empty {
  padding: 26px 20px;
  color: var(--muted-2);
  font-size: 11px;
  text-align: center;
}
.palette-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  padding: 9px 14px;
  border-top: 1px solid var(--line);
  color: var(--muted-2);
  font-size: 9px;
}
.palette-foot span { display: inline-flex; align-items: center; gap: 5px; }
.palette-key {
  padding: 2px 5px;
  color: var(--muted);
  background: var(--panel-raised);
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 9px;
}

/* Scoped workspace and contribution canvases remain below app content. */
.main { position: relative; }
#particles-workspace {
  position: fixed;
  top: 72px;
  right: 304px;
  bottom: 0;
  left: 0;
  z-index: var(--z-workspace);
  opacity: .24;
  pointer-events: none;
  overflow: hidden;
}
#particles-workspace .particles-js-canvas-el {
  display: block;
  pointer-events: none;
}
.main-inner {
  position: relative;
  z-index: var(--z-content);
}
#topbar-contrib {
  position: absolute;
  inset: 0;
  z-index: var(--z-workspace);
  opacity: .58;
  pointer-events: none;
  overflow: hidden;
}
#topbar-contrib canvas {
  display: block;
  width: 100%;
  height: 100%;
}
.topbar > *:not(#topbar-contrib) {
  position: relative;
  z-index: var(--z-content);
}
[data-theme="light"] #particles-workspace {
  opacity: .16;
  mix-blend-mode: multiply;
}
[data-theme="light"] #topbar-contrib { opacity: .3; }

/* Strong visual pass — field-manual inversion.
   The product keeps its exact routes, components, controls, copy, icons, and
   mascot, but no longer shares the old left-rail / dark-card silhouette. The
   repository brief is an inverted manual sheet; workspace context moves to a
   right-hand rail; analysis content resolves into an open ruled ledger. */
body {
  font-size: 14px;
  line-height: 1.6;
}

.topbar {
  height: 72px;
  gap: 24px;
  padding: 0 28px;
  background: var(--bg);
  border-bottom: 2px solid var(--line-strong);
}
.brand { gap: 11px; }
.brand-logo, .brand-img { width: 52px; height: 52px; }
.brand-word { font-size: 19px; }
.brand-sub {
  padding-left: 14px;
  font-size: 10px;
  letter-spacing: .14em;
}
.topbar-center { font-size: 13px; }
.topbar-actions { gap: 8px; }
.connection-pill {
  padding: 9px 12px;
  background: var(--panel-soft);
  border-radius: var(--radius-sm);
  font-size: 12px;
}
.icon-button {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
}

/* Context now lives on the right. This single move changes the application
   silhouette without changing sidebar ownership or any navigation behavior. */
.layout {
  grid-template-columns: minmax(0, 1fr) 304px;
  min-height: calc(100vh - 72px);
}
.sidebar {
  grid-column: 2;
  grid-row: 1;
  position: sticky;
  top: 72px;
  align-self: start;
  width: auto;
  height: calc(100vh - 72px);
  overflow-y: auto;
  padding: 36px 24px 28px;
  background: var(--panel-soft);
  border-right: 0;
  border-left: 2px solid var(--line-strong);
}
.main {
  grid-column: 1;
  grid-row: 1;
  max-width: none;
  padding: 48px clamp(32px, 5vw, 72px) 112px;
}
.sidebar-label {
  margin: 0 8px 12px;
  font-size: 10px;
  letter-spacing: .18em;
}
.new-analysis {
  margin-bottom: 36px;
  padding: 13px 16px;
  color: var(--route-bright);
  background: transparent;
  border: 1px solid var(--route-line);
  border-radius: 0;
  box-shadow: none;
}
.new-analysis:hover {
  color: var(--route-ink);
  background: var(--route);
}
.sidebar-nav { gap: 4px; }
.nav-item {
  padding: 13px 10px;
  border: 0;
  border-radius: 0;
  font-size: 13px;
}
.nav-item.active {
  color: var(--route-bright);
  background: var(--route-dim);
}
.history { margin-top: 40px; }
.history-list { gap: 4px; }
.history-row, .history-entry { border-radius: 0; }
.history-entry {
  padding: 11px 8px;
  border: 0;
  font-size: 12px;
}
.history-row.active, .history-entry.renaming { background: var(--route-dim); }
.side-section { margin-top: 36px; }
.file-tree {
  max-height: 380px;
  padding: 8px 0;
  background: transparent;
  border-right: 0;
  border-left: 0;
  border-radius: 0;
}
.tree-filter {
  height: 42px;
  padding: 0 12px;
  border-radius: 0;
  font-size: 12px;
}
.tree-row { padding: 7px 8px; border-radius: 0; font-size: 12px; }
.local-note { font-size: 11px; }

/* The opening brief is a light field-manual sheet in dark mode and a dark
   sheet in light mode. It is the dominant, immediate before/after signal. */
.hero {
  position: relative;
  isolation: isolate;
  min-height: 520px;
  max-width: none;
  margin: 0 0 56px;
  padding: 52px 44% 56px 56px;
  color: var(--manual-ink);
  background: var(--manual);
  border-top: 8px solid var(--route);
  overflow: hidden;
  animation: none;
}
.hero::before {
  content: '';
  position: absolute;
  inset: -40px;
  z-index: var(--z-workspace);
  pointer-events: none;
  background-image:
    conic-gradient(from 270deg at 6px 6px, var(--manual-accent) 25%, transparent 0),
    conic-gradient(from 270deg at 6px 6px, var(--manual-accent) 25%, transparent 0);
  background-position: 0 0, 18px 18px;
  background-size: 18px 18px, 54px 54px;
  opacity: .055;
  -webkit-mask-image: linear-gradient(100deg, transparent 2%, rgba(0, 0, 0, .14) 34%, #000 74%, rgba(0, 0, 0, .45));
          mask-image: linear-gradient(100deg, transparent 2%, rgba(0, 0, 0, .14) 34%, #000 74%, rgba(0, 0, 0, .45));
  animation: contribution-drift 46s var(--ease) infinite alternate-reverse;
  will-change: transform;
}
.hero > .eyebrow,
.hero > h1,
.hero > .hero-copy,
.hero > .repo-form,
.hero > .seg-block,
.hero > .form-meta,
.hero > .error-banner {
  position: relative;
  z-index: var(--z-content);
}
.hero > .eyebrow { animation: manual-enter 420ms var(--ease) 40ms both; }
.hero > h1 { animation: manual-enter 520ms var(--ease) 80ms both; }
.hero > .hero-copy { animation: manual-enter 520ms var(--ease) 140ms both; }
.hero > .repo-form { animation: manual-enter 460ms var(--ease) 110ms both; }
.hero > .seg-block { animation: manual-enter 460ms var(--ease) 170ms both; }
.hero > .form-meta { animation: manual-enter 460ms var(--ease) 220ms both; }
.hero > .error-banner { animation: manual-enter 320ms var(--ease) both; }
@keyframes manual-enter {
  from { opacity: 0; transform: translate3d(0, 12px, 0); }
  to { opacity: 1; transform: translate3d(0, 0, 0); }
}
.eyebrow {
  margin-bottom: 20px;
  color: var(--manual-accent);
  font-size: 11px;
  letter-spacing: .18em;
}
.eyebrow-line { width: 28px; background: var(--manual-accent); }
h1 {
  max-width: 15ch;
  color: var(--manual-ink);
  font-size: clamp(44px, 3.45vw, 52px);
  line-height: 1.01;
  letter-spacing: -.04em;
  overflow-wrap: anywhere;
  min-width: 0;
}
h1 span { color: var(--manual-muted); }
.hero-copy {
  max-width: 46ch;
  color: var(--manual-muted);
  font-size: 16px;
  line-height: 1.68;
}

.repo-form {
  max-width: none;
  padding: 9px;
  gap: 8px;
  background: var(--panel);
  border: 1px solid var(--line-strong);
  border-radius: 0;
  box-shadow: none;
}
.repo-form:focus-within {
  border-color: var(--route);
  box-shadow: 0 0 0 2px var(--route-dim);
}
.repo-input { height: 50px; font-size: 14px; }
.analyze-button {
  min-height: 50px;
  padding: 0 22px;
  border-radius: 0;
  font-size: 13px;
}
@media (hover: hover) and (pointer: fine) {
  .analyze-button:not(:disabled),
  .install-button:not(:disabled),
  .new-analysis {
    transition: color var(--dur-instant) var(--ease), background-color var(--dur-instant) var(--ease),
      border-color var(--dur-instant) var(--ease), transform var(--dur-instant) var(--ease),
      box-shadow var(--dur-instant) var(--ease);
  }
  .analyze-button:hover:not(:disabled),
  .install-button:hover:not(:disabled),
  .new-analysis:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
  }
  .analyze-button:active:not(:disabled),
  .install-button:active:not(:disabled),
  .new-analysis:active {
    transform: translateY(1px);
    box-shadow: none;
  }
  .nav-item,
  .history-entry,
  .tree-row.dir { transition: color var(--dur-instant) var(--ease), background-color var(--dur-instant) var(--ease), transform var(--dur-instant) var(--ease); }
  .nav-item:hover,
  .history-entry:hover,
  .tree-row.dir:hover { transform: translateX(2px); }
}
.seg-block { max-width: none; margin-top: 20px; }
.seg-label { margin-bottom: 10px; font-size: 11px; }
.seg-row {
  gap: 0;
  padding: 0;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 0;
}
.seg-option {
  min-height: 74px;
  padding: 13px 14px;
  background: transparent;
  border: 0;
  border-right: 1px solid var(--line);
  border-radius: 0;
}
.seg-option:last-child { border-right: 0; }
.seg-option:hover { background: var(--panel-raised); }
.seg-option.active {
  background: var(--route-dim);
  border-color: var(--line);
  box-shadow: inset 0 -3px 0 var(--route);
}
.seg-option strong { font-size: 12px; }
.seg-option span { font-size: 10.5px; }
.form-meta {
  margin-top: 16px;
  gap: 8px 16px;
  font-size: 11px;
}

/* Inverted control colors inside the field-manual sheet. */
.hero .repo-form {
  display: block;
  background: var(--manual-control);
  border-color: var(--manual-control);
}
.hero .analyze-button { width: 100%; margin-top: 8px; }
.hero .repo-input { color: var(--manual-control-text); }
.hero .repo-input::placeholder { color: var(--manual-control-muted); }
.hero .repo-input-wrap svg { color: var(--manual-control-muted); }
.hero .seg-label, .hero .form-meta { color: var(--manual-muted); }
.hero .seg-label em { color: var(--manual-muted); }
.hero .seg-row { border-color: var(--manual-line); }
.hero .seg-option { border-color: var(--manual-line); }
.hero .seg-option:hover { background: var(--manual-line); }
.hero .seg-option strong { color: var(--manual-ink); }
.hero .seg-option span { color: var(--manual-muted); }
.hero .seg-option.active {
  background: var(--manual-control);
  box-shadow: inset 0 -4px 0 var(--route);
}
.hero .seg-option.active strong { color: var(--route); }
.hero .seg-option.active span { color: var(--manual-control-muted); }
.hero .form-meta .shortcut { border-color: var(--manual-line); }
.hero .error-banner { background: var(--manual-control); }

@media (min-width: 1200px) {
  .hero > .repo-form,
  .hero > .seg-block,
  .hero > .form-meta,
  .hero > .error-banner {
    position: absolute;
    right: 56px;
    left: 56%;
    width: auto;
    max-width: none;
    margin: 0;
  }
  .hero > .repo-form { top: 56px; }
  .hero > .seg-block { top: 210px; }
  .hero > .form-meta { top: 352px; }
  .hero > .error-banner { top: 416px; }
}

/* Analysis starts with the same manual sheet as a compact scan console. The
   three existing siblings remain separate DOM components but form one band. */
.main-inner > .repo-form {
  margin: 0;
  padding: 10px 12px;
  color: var(--manual-ink);
  background: var(--manual);
  border: 0;
  border-top: 8px solid var(--route);
}
.main-inner > .repo-form .repo-input { color: var(--manual-ink); }
.main-inner > .repo-form .repo-input::placeholder { color: var(--manual-muted); }
.main-inner > .repo-form .repo-input-wrap svg { color: var(--manual-muted); }
.main-inner > .seg-block {
  margin: 0;
  padding: 18px 20px 0 28px;
  color: var(--manual-ink);
  background: var(--manual);
}
.main-inner > .seg-block .seg-label,
.main-inner > .seg-block .seg-label em { color: var(--manual-muted); }
.main-inner > .seg-block .seg-row { border-color: var(--manual-line); }
.main-inner > .seg-block .seg-option { border-color: var(--manual-line); }
.main-inner > .seg-block .seg-option:hover { background: var(--manual-line); }
.main-inner > .seg-block .seg-option strong { color: var(--manual-ink); }
.main-inner > .seg-block .seg-option span { color: var(--manual-muted); }
.main-inner > .seg-block .seg-option.active {
  background: var(--manual-control);
  box-shadow: inset 0 -4px 0 var(--route);
}
.main-inner > .seg-block .seg-option.active strong { color: var(--route); }
.main-inner > .seg-block .seg-option.active span { color: var(--manual-control-muted); }
.main-inner > .form-meta {
  margin: 0 0 48px;
  padding: 18px 20px 24px 28px;
  color: var(--manual-muted);
  background: var(--manual);
  border-bottom: 8px solid var(--route);
}
.main-inner > .form-meta .shortcut { border-color: var(--manual-line); }

.initial-content {
  margin-top: 0;
  padding-top: 14px;
  border-top: 0;
}
.section-kicker {
  margin-bottom: 20px;
  color: var(--text);
  font-size: 14px;
  letter-spacing: -.01em;
}
.section-kicker::after { display: none; }
.route-preview {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, .9fr) minmax(0, .9fr);
  gap: 18px;
  max-width: none;
  background: transparent;
  border: 0;
  border-radius: 0;
  overflow: visible;
}
.route-stop {
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 18px;
  min-height: 168px;
  padding: 30px 22px;
  background: transparent;
  border: 0;
}
.route-stop:nth-child(2) {
  background: var(--panel-soft);
  box-shadow: inset 0 1px 0 var(--line-strong), var(--shadow);
}
.route-mile {
  padding: 0;
  color: var(--route);
  background: transparent;
  border: 0;
  border-radius: 0;
  font-size: 19px;
  text-align: left;
}
.route-stop h3 { font-size: 18px; line-height: 1.35; }
.route-stop p { max-width: 42ch; font-size: 13px; line-height: 1.72; }
.example-row { margin-top: 32px; color: var(--muted); font-size: 11.5px; }
.example-chip { border-radius: 0; font-size: 11.5px; }

.analysis-view { margin-top: 0; }
.analysis-head {
  gap: 32px;
  margin-bottom: 38px;
  padding: 0;
  border-bottom: 0;
}
.repo-identity { gap: 20px; }
.repo-avatar {
  width: 60px;
  height: 60px;
  background: var(--panel-soft);
  border: 1px solid var(--line-strong);
  border-radius: 0;
  box-shadow: inset 0 3px 0 var(--route);
}
.analysis-head h2 { font-size: 44px; line-height: .98; }
.repo-url { font-size: 11.5px; line-height: 1.6; }
.repo-description { max-width: 62ch; font-size: 14px; line-height: 1.7; }
.analysis-actions { gap: 8px; }
.analysis-actions .seg-inline {
  max-width: 280px;
  flex-wrap: wrap;
  border-radius: 0;
}
.analysis-actions .seg-note {
  flex: 1 0 100%;
  padding: 3px 7px 1px;
  text-align: center;
}
.secondary-button, .install-button {
  min-height: 42px;
  padding: 9px 15px;
  border-radius: 0;
  font-size: 12px;
}
.seg-chip { border-radius: 0; font-size: 10.5px; }

.route-nav {
  gap: 4px;
  margin: 0 0 28px;
  padding: 4px;
  background: var(--panel-soft);
  border: 0;
  box-shadow: inset 0 1px 0 var(--line);
}
.route-nav a {
  position: relative;
  flex: 1;
  justify-content: center;
  padding: 12px 10px 13px;
  background: transparent;
  border: 0;
  border-radius: 0;
  font-size: 11px;
  overflow: hidden;
}
.route-nav a::after {
  content: '';
  position: absolute;
  right: 14px;
  bottom: 4px;
  left: 14px;
  height: 2px;
  background: var(--route);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-normal) var(--ease);
}
.route-nav a:hover,
.route-nav a:focus-visible { color: var(--route-bright); background: var(--route-dim); }
.route-nav a:hover::after,
.route-nav a:focus-visible::after { transform: scaleX(1); }
.route-status {
  margin-bottom: 32px;
  padding: 26px 28px;
  color: var(--manual-ink);
  background: var(--manual);
  border: 0;
  border-top: 8px solid var(--route);
  border-radius: 0;
}
[data-theme="light"] .route-status { background: var(--manual); }
.route-status .route-kicker,
.route-status .progress-copy strong { color: var(--manual-accent); }
.route-status .route-kicker { font-size: 11.5px; }
.route-status .route-verdict { color: var(--manual-ink); font-size: 14px; line-height: 1.7; }
.route-status .route-verdict.dim,
.route-status .progress-copy { color: var(--manual-muted); }
.route-status .progress-copy { font-size: 11px; }
.route-status .progress-track { background: var(--manual-line); }
.route-status .progress-fill { background: var(--manual-accent); }
.overview-strip {
  gap: 8px;
  margin-bottom: 48px;
  background: transparent;
  border: 0;
  border-radius: 0;
  overflow: visible;
}
.overview-cell {
  min-height: 96px;
  padding: 20px 22px;
  background: var(--panel-soft);
  border: 0;
}
.overview-cell.summary { box-shadow: inset 3px 0 0 var(--route); }
.overview-cell .cell-label { font-size: 11px; letter-spacing: .08em; }
.overview-cell .cell-value { margin-top: 10px; font-size: 17px; line-height: 1.55; }
.overview-cell .cell-value.mono { font-size: 12.5px; }
.dashboard-grid {
  grid-template-columns: minmax(0, 1.55fr) minmax(300px, .7fr);
  gap: 36px;
}

/* Panels now read as chapters: whitespace carries the hierarchy, while only
   supporting/reference groups receive a tonal surface. */
.panel {
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}
.panel + .panel { margin-top: 58px; }
.panel.elevated { box-shadow: none; }
.panel-heading {
  gap: 18px;
  padding: 18px 0 22px;
  background: transparent;
  border: 0;
}
.panel-title-wrap { gap: 14px; }
.panel-icon {
  width: 34px;
  height: 34px;
  color: var(--route);
  background: var(--route-dim);
  border-radius: 0;
}
.panel h3 { margin-top: 1px; font-size: 20px; line-height: 1.3; letter-spacing: -.02em; }
.panel-subtitle { max-width: 62ch; margin-top: 6px; font-size: 13px; line-height: 1.65; }
.panel-count { font-size: 10.5px; }
.install-list { padding: 0; }
.step-row {
  gap: 18px;
  margin-top: 4px;
  padding: 20px 0;
  border-bottom: 0;
}
.step-row:hover { background: var(--panel-soft); }
.step-number {
  background: transparent;
  border-radius: 0;
  font-size: 11px;
}
.step-title { font-size: 15px; line-height: 1.45; }
.step-id { background: transparent; border-radius: 0; font-size: 9.5px; }
.step-state { font-size: 10px; }
.step-detail { max-width: 70ch; font-size: 13px; line-height: 1.72; }
.command-block {
  padding: 14px 88px 14px 14px;
  border-radius: 0;
  font-size: 12px;
  line-height: 1.6;
}
.copy-mini { border-radius: 0; }
.install-progress { padding: 20px 0 24px; background: transparent; border-top: 0; }
.info-grid { gap: 18px; margin-bottom: 52px; }
.info-grid .info-panel,
.primary-stack > .panel:not(.plain-panel),
.sticky-column > .panel {
  padding: 20px;
  background: var(--panel-soft);
}
.info-grid .panel + .panel { margin-top: 0; }
.info-panel .panel-heading { padding: 4px 0 18px; }
.info-panel .panel-heading h3 { font-size: 17px; }
.info-list { padding: 4px 0 8px; }
.info-item { padding: 10px 0; border-bottom: 0; font-size: 12.5px; line-height: 1.65; }
.sticky-column > .panel { top: 96px; }

.plain-analogy {
  padding: 16px 18px;
  background: var(--route-dim);
  border: 0;
  border-radius: 0;
  box-shadow: inset 3px 0 0 var(--route);
  font-size: 13px;
  line-height: 1.7;
}
.plain-grid {
  gap: 12px;
  border: 0;
}
.plain-card {
  padding: 18px;
  background: var(--panel-soft);
  border: 0;
  border-radius: 0;
}
.plain-card:nth-child(2), .plain-card.wide { border: 0; }
.plain-card.wide { background: transparent; box-shadow: inset 0 1px 0 var(--line); }
.plain-card p,
.plain-card ol { font-size: 13px; line-height: 1.72; }
.plain-kicker { font-size: 10px; }
.insight-list { gap: 10px; }
.insight-list li {
  padding: 14px 14px 14px 34px;
  background: var(--panel-soft);
  border: 0;
  border-radius: 0;
  font-size: 13px;
  line-height: 1.7;
}
.insight-list li::before {
  top: 21px;
  width: 6px;
  height: 6px;
  border-radius: 0;
}
.health-body {
  padding: 28px 24px;
  background: var(--panel-soft);
}
.health-factors { gap: 18px; }
.factor-top { font-size: 12.5px; }
.factor p { font-size: 12px; line-height: 1.65; }
.health-foot,
.fail-foot { border-top: 0; }
.cap-item, .fail-notice, .graph-alt, .graph-tradeoff,
.contract-gaps, .fail-expect { border-radius: 0; }
.fail-list { gap: 10px; }
.fail-row {
  padding: 20px;
  background: var(--panel-soft);
  border-bottom: 0;
}
.fail-title h4 { font-size: 14px; line-height: 1.45; }
.fail-main p { font-size: 13px; line-height: 1.7; }
.fail-scale, .fail-foot, .health-foot { font-size: 10.5px; }
.origin-badge, .patched, .unpatched, .path-pill,
.rev-badge, .tag, .quick-pick { border-radius: 0; }
.path-pill { background: transparent; }
.followup-chip { background: transparent; border-radius: 0; }
.contract-meta {
  padding: 14px 18px;
  border-bottom: 0;
}
.contract-grid {
  gap: 28px;
  padding: 26px 22px;
  background: var(--panel-soft);
}
.contract-section h4 { font-size: 10.5px; }
.contract-list strong { font-size: 13px; }
.contract-list span, .contract-list code { font-size: 12px; line-height: 1.65; }
.contract-check,
.contract-sign,
.contract-guarantees { border-top: 0; }
.contract-meta, .contract-guarantees { font-size: 10.5px; }

/* Reading matter is deliberately larger than controls and metadata. */
.plain-body,
.explorer-body { padding: 8px 0 0; }
.explorer-grid { gap: 10px; }
.explorer-btn {
  min-height: 64px;
  padding: 14px;
  background: var(--panel-soft);
  border: 0;
  border-radius: 0;
}
.explorer-btn.active { box-shadow: inset 0 -3px 0 var(--route); }
.explorer-text strong { font-size: 13px; }
.explorer-text small { font-size: 11.5px; line-height: 1.55; }
.explanation-content { padding: 10px 0 4px; }
.explanation-select { min-height: 38px; height: 38px; font-size: 11.5px; border-radius: 0; }
.explanation-content h4 { margin-top: 18px; font-size: 17px; line-height: 1.4; }
.explanation-content p { font-size: 13px; line-height: 1.75; }
.explanation-tip { padding: 12px; border: 0; border-radius: 0; font-size: 12px; line-height: 1.65; }
.files-panel .file-list { padding: 8px 0 2px; }
.file-chip { font-size: 10px; border-radius: 0; }
.insight-intro { font-size: 13px; line-height: 1.75; }
.insight-outro { font-size: 12.5px; line-height: 1.7; border: 0; border-radius: 0; }
.followups { border-top: 0; }
.followup-chip { font-size: 11.5px; }
.health-band span { font-size: 11.5px; line-height: 1.6; }
.cap-item { font-size: 12px; line-height: 1.6; }
.graph-tradeoff { font-size: 12px; line-height: 1.65; }
.contract-state { font-size: 12.5px; line-height: 1.7; }
.contract-check label { font-size: 12.5px; line-height: 1.6; }
.contract-guarantees { font-size: 11.5px; line-height: 1.65; }
.recovery-body { padding: 10px 0 18px; }
.recovery-diagnosis { font-size: 14px; line-height: 1.7; }
.recovery-second,
.recovery-list { font-size: 12.5px; line-height: 1.7; }

.modal, .palette-modal { border-radius: 0; }
.text-field, .select-field { border-radius: 0; font-size: 12px; }
.sig-chip { background: transparent; border-radius: 0; font-size: 10.5px; }

#particles-workspace { opacity: .24; }
#topbar-contrib { opacity: .58; }
[data-theme="light"] #particles-workspace {
  opacity: .16;
  mix-blend-mode: multiply;
}
[data-theme="light"] #topbar-contrib { opacity: .3; }

@media (max-width: 1399px) {
  .analysis-head { display: block; }
  .analysis-actions { margin-top: 24px; }
}
@media (max-width: 1199px) {
  .hero {
    display: flex;
    flex-direction: column;
    min-height: 0;
    padding: 48px;
  }
  .hero > .repo-form { order: 1; margin-top: 36px; }
  .hero > .error-banner { order: 2; width: 100%; max-width: none; }
  .hero > .seg-block { order: 3; }
  .hero > .form-meta { order: 4; }
}
@media (max-width: 1100px) {
  #particles-workspace { right: 220px; }
  .layout { grid-template-columns: minmax(0, 1fr) 220px; }
  .sidebar {
    grid-column: 2;
    width: auto;
    padding: 28px 16px 24px;
  }
  .sidebar-label { display: block; }
  .nav-item span:not(.nav-icon),
  .new-analysis span { display: inline; }
  .history, .sidebar-foot { display: block; }
  .new-analysis {
    width: 100%;
    height: auto;
    margin: 0 0 32px;
    padding: 12px 10px;
  }
  .nav-item { justify-content: flex-start; padding: 12px 8px; }
  .nav-item .nav-icon { width: 22px; }
  .main { grid-column: 1; padding-right: 36px; padding-left: 36px; }
}
@media (max-width: 900px) {
  .main { padding-top: 36px; }
  .hero { padding: 40px; }
  .route-preview { display: block; }
  .route-stop {
    min-height: 0;
    border: 0;
  }
  .route-stop + .route-stop { margin-top: 8px; }
  .dashboard-grid { grid-template-columns: minmax(0, 1fr); }
  .sticky-column > .panel { position: static; }
}
@media (max-width: 720px) {
  #particles-workspace { right: 0; bottom: 64px; }
  .topbar { padding: 0 16px; }
  .layout { display: block; min-height: calc(100vh - 72px); }
  .sidebar { display: none; }
  .main { display: block; padding: 32px 20px 96px; }
  .mobile-nav,
  [data-theme="light"] .mobile-nav {
    display: flex;
    color: var(--manual-ink);
    background: var(--manual);
    border-top: 6px solid var(--route);
  }
  .mobile-nav-item { color: var(--manual-muted); border-radius: 0; }
  .mobile-nav-item:hover, .mobile-nav-item:active {
    color: var(--manual-accent);
    background: transparent;
  }
  .oreo-float { right: 12px; bottom: 64px; }
  body:has(.hero > .error-banner) .oreo-float { top: 76px; bottom: auto; }
  body:has(.hero > .error-banner) .oreo-tip { display: none; }
  .oreo-panel {
    right: 12px;
    bottom: 76px;
    left: 12px;
    width: auto;
    height: min(400px, calc(100vh - 190px));
  }
  .hero {
    margin-right: -20px;
    margin-left: -20px;
    padding: 40px 20px 48px;
    border-top-width: 6px;
  }
  h1 { max-width: 15ch; font-size: clamp(34px, 9.6vw, 44px); line-height: 1.03; }
  .hero-copy { max-width: 52ch; font-size: 15px; line-height: 1.68; }
  .repo-form { display: block; }
  .analyze-button { width: 100%; margin-top: 4px; }
  .seg-row { grid-template-columns: minmax(0, 1fr); }
  .seg-option {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .seg-option:last-child { border-bottom: 0; }
  .main-inner > .repo-form,
  .main-inner > .seg-block,
  .main-inner > .form-meta {
    margin-right: -20px;
    margin-left: -20px;
  }
  .main-inner > .repo-form { padding: 12px 20px; }
  .main-inner > .seg-block { padding: 18px 20px 0; }
  .main-inner > .form-meta { padding: 18px 20px 24px; }
  .overview-strip {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    grid-template-areas: "summary summary" "branch language" "files files";
  }
  .route-nav a { flex: 0 0 calc(50% - 2px); border: 0; }
  .route-status { grid-template-columns: minmax(0, 1fr); padding: 22px 20px; }
  .info-grid { grid-template-columns: minmax(0, 1fr); gap: 18px; }
  .health-body { grid-template-columns: minmax(0, 1fr); }
  .fail-row { grid-template-columns: 28px minmax(0, 1fr); padding: 18px; }
  .fail-patch { grid-column: 2; }
  .contract-grid { grid-template-columns: minmax(0, 1fr); }
  .panel-heading { padding: 18px 0; }
  .panel-count { max-width: 34%; }
}
@media (max-width: 600px) {
  #particles-workspace { top: 64px; }
  .topbar { height: 64px; }
  .layout { display: block; min-height: calc(100vh - 64px); }
  .sidebar { display: none; }
  .main { display: block; padding-right: 16px; padding-left: 16px; }
  .brand-logo, .brand-img { width: 44px; height: 44px; }
  .hero {
    margin-top: -32px;
    margin-right: -16px;
    margin-left: -16px;
    padding-right: 16px;
    padding-left: 16px;
  }
  .initial-content { padding-top: 28px; }
  .main-inner > .repo-form,
  .main-inner > .seg-block,
  .main-inner > .form-meta {
    margin-right: -16px;
    margin-left: -16px;
  }
  .analysis-head h2 { font-size: 34px; }
  .analysis-actions { width: 100%; }
  .analysis-actions button { flex: 1; }
  .analysis-actions .seg-inline { width: 100%; max-width: none; }
  .panel + .panel { margin-top: 42px; }
  .install-list { padding: 0; }
  .step-row { gap: 10px; padding: 18px 0; }
  .step-body { padding-right: 36px; }
}

/* The route marker communicates selected navigation; it does not animate on
   hover or compete with the existing color state. */
.nav-item { position: relative; }
.nav-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 3px;
  height: 60%;
  background: var(--route);
  border-radius: 0 3px 3px 0;
  transform: translateY(-50%);
  opacity: 0;
}
.nav-item.active::before { opacity: 1; }

/* Checked work receives one restrained state ring. */
.step-check:checked { box-shadow: 0 0 0 3px var(--route-dim); }
.step-title { line-height: 1.5; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  body::after,
  .hero::before,
  .hero > .eyebrow,
  .hero > h1,
  .hero > .hero-copy,
  .hero > .repo-form,
  .hero > .seg-block,
  .hero > .form-meta,
  .hero > .error-banner {
    animation: none !important;
    transform: none !important;
  }
  html.reveal-armed [data-reveal],
  html.reveal-armed [data-reveal-stagger] > * {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  #particles-workspace {
    display: none;
  }
  #topbar-contrib canvas {
    opacity: 1;
  }
  .sig-marquee-track {
    animation: none;
    width: auto;
    flex-wrap: wrap;
  }
  .sig-marquee-track .sig-marquee-group:nth-child(2) { display: none; }
  .sig-marquee:not(.sig-static) {
    -webkit-mask-image: none;
            mask-image: none;
  }
}