:root {
  --ink: #0c1116;
  --ink-soft: #262f36;
  --sand: #f6f1ea;
  --cloud: #fcfaf7;
  --mist: #e2edea;
  --teal: #1f7a74;
  --teal-deep: #165c57;
  --gold: #d08f3f;
  --coral: #e36b4c;
  --brand: #dc3149;
  --brand-soft: rgba(220, 49, 73, 0.12);
  --border-brand: rgba(220, 49, 73, 0.35);
  --shadow: rgba(13, 17, 21, 0.08);
  --shadow-strong: rgba(13, 17, 21, 0.16);
  --shadow-tight: 0 8px 18px var(--shadow);
  --shadow-soft: 0 12px 30px var(--shadow);
  --shadow-medium: 0 16px 32px var(--shadow);
  --shadow-large: 0 18px 40px var(--shadow);
  --shadow-lift: 0 24px 50px var(--shadow-strong);
  --border-subtle: rgba(12, 17, 22, 0.08);
  --border-muted: rgba(12, 17, 22, 0.12);
  --border-strong: rgba(12, 17, 22, 0.2);
  --border-ghost: rgba(12, 17, 22, 0.06);
  --border-accent: rgba(31, 122, 116, 0.28);
  --border-accent-strong: rgba(31, 122, 116, 0.45);
  --border-warm: rgba(208, 143, 63, 0.35);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --radius-pill: 999px;
  --space-xxs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 5rem;
  --max-shell: 1200px;
  --max-hero: 960px;
  --max-content: 720px;
  --measure: 68ch;
  --focus-ring: rgba(31, 122, 116, 0.55);
  --focus-ring-offset: 3px;
  --font-sans: "Space Grotesk", "Manrope", sans-serif;
  --font-serif: "Newsreader", "Cormorant Garamond", serif;
  --font-mono: "JetBrains Mono", "Fira Code", "SFMono-Regular", monospace;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--sand);
  line-height: 1.6;
}

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

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: var(--focus-ring-offset);
}

p {
  margin: 0 0 var(--space-md);
  max-width: var(--measure);
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-serif);
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-sm);
}

h1 {
  font-size: clamp(2.3rem, 3.6vw, 3.8rem);
  line-height: 1.05;
}

h2 {
  font-size: clamp(1.8rem, 2.6vw, 2.7rem);
  line-height: 1.15;
}

h3 {
  font-size: 1.45rem;
  line-height: 1.25;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--ink);
  color: var(--sand);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-pill);
  z-index: 100;
}

.skip-link:focus {
  left: 1.5rem;
  top: 1.5rem;
}

.background {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.background-orb {
  position: absolute;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  filter: blur(0);
  opacity: 0.18;
  background: radial-gradient(circle, rgba(31, 122, 116, 0.5), transparent 60%);
}

.orb-one {
  top: -180px;
  right: -120px;
}

.orb-two {
  bottom: -200px;
  left: -140px;
  background: radial-gradient(circle, rgba(208, 143, 63, 0.5), transparent 60%);
}

.background-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(12, 17, 22, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(12, 17, 22, 0.04) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.5;
}

.site-shell {
  max-width: var(--max-shell);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg) var(--space-3xl);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: rgba(246, 241, 234, 0.85);
  border-radius: var(--radius-lg);
  margin-top: 1rem;
  border: 1px solid var(--border-ghost);
  box-shadow: var(--shadow-large);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
}

.brand {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  column-gap: 0.75rem;
}

.brand-logo {
  width: 36px;
  height: 36px;
  object-fit: contain;
}

.brand-mark {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  grid-column: 2;
}

.brand-meta {
  font-size: 0.85rem;
  color: var(--ink-soft);
  grid-column: 2;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  position: relative;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 0.35rem;
  border: none;
  background: transparent;
  padding: 0.4rem;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--ink);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle.is-open span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.nav-toggle.is-open span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  font-size: 0.95rem;
}

.nav-links a {
  color: var(--ink-soft);
}

.nav-links a.nav-cta {
  color: var(--cloud);
}

.nav-cta {
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-pill);
  background: var(--brand);
  color: var(--cloud);
  transition: background 0.2s ease;
}

.nav-cta:hover,
.nav-cta:focus-visible {
  background: #c0263d;
}

.site-main {
  padding: 2rem 0;
}

.hero,
.page-hero {
  padding: var(--space-2xl) 0 var(--space-lg);
}

.hero-media {
  margin-top: var(--space-md);
}

.hero-graphic {
  width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--cloud);
  box-shadow: var(--shadow-large);
}

.hero-graphic--icon {
  max-width: 160px;
  margin: 0;
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  box-shadow: none;
}

.section-icon {
  width: 28px;
  height: auto;
}

.section-icon--inline {
  width: 22px;
  height: 22px;
  opacity: 0.9;
}

.card-icon {
  width: 32px;
  height: auto;
  margin-bottom: var(--space-xs);
}

.hero-shell {
  max-width: var(--max-hero);
}

.hero-heading {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.hero-heading-text {
  display: grid;
  gap: var(--space-xxs);
}

.hero-heading .eyebrow {
  margin-bottom: 0;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.25em;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--brand);
}

.hero-kicker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-sm);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-xxs) var(--space-sm);
  border-radius: var(--radius-pill);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  border: 1px solid var(--border-muted);
  background: rgba(12, 17, 22, 0.05);
  color: var(--ink-soft);
}

.status-badge.status-production {
  border-color: var(--border-accent-strong);
  background: rgba(31, 122, 116, 0.18);
  color: var(--teal);
}

.status-badge.status-testing {
  border-color: rgba(208, 143, 63, 0.5);
  background: rgba(208, 143, 63, 0.18);
  color: var(--gold);
}

.status-badge.status-development {
  border-color: rgba(227, 107, 76, 0.45);
  background: rgba(227, 107, 76, 0.18);
  color: var(--coral);
}

.status-badge.status-concept {
  border-color: rgba(12, 17, 22, 0.18);
  background: rgba(12, 17, 22, 0.06);
  color: var(--ink-soft);
}

.status-badge.status-maintenance {
  border-color: rgba(12, 17, 22, 0.24);
  background: rgba(12, 17, 22, 0.08);
  color: var(--ink-soft);
}

.status-badge.status-deprecated {
  border-color: rgba(12, 17, 22, 0.3);
  background: rgba(12, 17, 22, 0.12);
  color: var(--ink-soft);
  text-decoration: line-through;
}

.lead {
  font-size: 1.1rem;
  color: var(--ink-soft);
  max-width: var(--measure);
}

.meta {
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.hero-copy {
  max-width: var(--measure);
  color: var(--ink-soft);
}

.flow-diagram {
  margin: var(--space-sm) 0 var(--space-lg);
}

.flow-diagram__track {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-xs);
}

.flow-diagram__step {
  padding: var(--space-xxs) var(--space-sm);
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-strong);
  background: var(--cloud);
  color: var(--ink-soft);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.flow-diagram__arrow {
  color: var(--ink-soft);
  font-size: 1rem;
}

@media (max-width: 720px) {
  .flow-diagram__track {
    align-items: stretch;
  }

  .flow-diagram__arrow {
    display: none;
  }

  .flow-diagram__step {
    flex: 1 1 100%;
    text-align: left;
  }
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin: var(--space-xl) 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-weight: 600;
}

.button.primary {
  background: var(--brand);
  color: var(--cloud);
  box-shadow: var(--shadow-medium);
}

.button.primary:hover,
.button.primary:focus-visible {
  background: #c0263d;
}

.button.ghost {
  border-color: var(--border-strong);
  color: var(--ink);
}

.icon-button {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xxs);
  padding: var(--space-xxs) var(--space-sm);
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-accent);
  background: rgba(31, 122, 116, 0.12);
  color: var(--teal);
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
  line-height: 1;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.icon-button:hover,
.icon-button:focus-visible {
  border-color: var(--border-accent-strong);
  box-shadow: var(--shadow-tight);
  transform: translateY(-2px);
}

.icon-button__icon {
  display: inline-flex;
}

.icon-button svg {
  width: 0.95rem;
  height: 0.95rem;
  display: block;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  background: var(--cloud);
  box-shadow: var(--shadow-large);
}

.stat {
  font-size: 2rem;
  font-weight: 700;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.page-section {
  margin: var(--space-2xl) 0;
}

.section-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.section-lead {
  color: var(--ink-soft);
  max-width: var(--measure);
}

.showcase-bucket + .showcase-bucket {
  margin-top: var(--space-2xl);
}

.bucket-why {
  margin-bottom: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  background: rgba(208, 143, 63, 0.08);
  border: 1px solid var(--border-warm);
}

.bucket-why p {
  margin: 0;
}

.page-intro {
  margin-top: 0;
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.9fr);
  gap: var(--space-lg);
  align-items: start;
}

.intro-main {
  display: grid;
  gap: var(--space-md);
}

.intro-item {
  display: grid;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-radius: var(--radius-sm);
  background: rgba(252, 250, 247, 0.7);
  border: 1px solid var(--border-ghost);
}

.intro-side {
  display: grid;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-ghost);
  background: rgba(12, 17, 22, 0.02);
}

.intro-list {
  margin: 0;
  padding-left: var(--space-md);
  color: var(--ink-soft);
  display: grid;
  gap: var(--space-xxs);
}

.intro-note {
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.featured-strip {
  display: grid;
  gap: var(--space-xs);
}

.featured-card {
  display: grid;
  gap: var(--space-xxs);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-brand);
  background: var(--brand-soft);
  color: var(--ink);
  text-decoration: none;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.featured-card:hover,
.featured-card:focus-visible {
  border-color: var(--brand);
  background: rgba(220, 49, 73, 0.18);
}

.featured-title {
  font-weight: 600;
}

.featured-summary {
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.featured-meta {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ink-soft);
}

.pipeline-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-md);
}

.pipeline-stage {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: var(--cloud);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-medium);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.stage-icon {
  width: 40px;
  height: auto;
  margin-bottom: var(--space-xs);
}

.pipeline-stage:hover,
.pipeline-stage:focus-within {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-large);
  transform: translateY(-3px);
}

.pipeline-title {
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.card-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card-grid.compact-grid {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card-grid.compact-grid .card {
  min-height: 160px;
}

.card,
.project-card {
  background: var(--cloud);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  box-shadow: var(--shadow-medium);
  border: 1px solid var(--border-ghost);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  min-height: 200px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover,
.project-card:hover,
.card:focus-within,
.project-card:focus-within {
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
}

.card-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.card h3,
.card h3 a,
.project-card h3,
.project-card h3 a,
.term-card h3,
.term-card h3 a {
  overflow-wrap: anywhere;
  word-break: break-word;
}

.card-summary {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.card-meta {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--coral);
}

.atlas-meta {
  display: grid;
  gap: var(--space-xxs);
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.atlas-card.is-hidden {
  display: none;
}

.is-hidden {
  display: none !important;
}

.filter-shell {
  display: grid;
  gap: var(--space-md);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: rgba(252, 250, 247, 0.7);
  border: 1px solid var(--border-ghost);
  box-shadow: none;
  margin-bottom: var(--space-lg);
}

.filter-toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: var(--space-md);
  align-items: center;
}

.filter-search {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.filter-search .detail-label {
  margin: 0;
  white-space: nowrap;
}

.filter-meta {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.filter-count {
  font-weight: 600;
  color: var(--ink);
}

.search-input {
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  font-family: var(--font-sans);
  width: 100%;
  min-height: 2.25rem;
}

.filter-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.filter-group {
  display: grid;
  gap: var(--space-xs);
}

.filter-options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.filter-option {
  display: flex;
  align-items: center;
  gap: var(--space-xxs);
  font-size: 0.9rem;
}

.filter-clear {
  align-self: center;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.chip {
  font-size: 0.75rem;
  padding: var(--space-xxs) var(--space-sm);
  border-radius: var(--radius-pill);
  border: 1px solid rgba(31, 122, 116, 0.2);
  background: rgba(31, 122, 116, 0.18);
  color: var(--teal-deep);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

a.chip:hover,
a.chip:focus-visible {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-tight);
  transform: translateY(-1px);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  color: var(--brand);
}

.text-link:hover,
.text-link:focus-visible {
  color: var(--ink);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-lg);
}

.capability {
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  background: rgba(252, 250, 247, 0.7);
  border: 1px solid var(--border-subtle);
  min-height: 220px;
}

.capability-title {
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.principle-grid {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.principle {
  padding: var(--space-lg);
  border-left: 3px solid var(--teal);
  background: rgba(31, 122, 116, 0.08);
  border-radius: var(--radius-sm);
}

.principle-title {
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.cta {
  margin: var(--space-4xl) 0 var(--space-xl);
  padding: var(--space-2xl);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(31, 122, 116, 0.12), rgba(208, 143, 63, 0.18));
  border: 1px solid var(--border-subtle);
}

.cta-shell {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.project-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
}

.project-stage {
  font-size: 0.8rem;
  padding: var(--space-xxs) var(--space-sm);
  border-radius: var(--radius-pill);
  background: rgba(227, 107, 76, 0.16);
  color: var(--coral);
}

.project-details {
  display: grid;
  gap: var(--space-sm);
  margin: var(--space-sm) 0;
}

.detail-label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--ink-soft);
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.meta-card {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-xl);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  background: var(--cloud);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-medium);
}

.meta-item {
  display: grid;
  gap: var(--space-xxs);
  font-size: 0.95rem;
}

.meta-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.meta-links a {
  font-size: 0.8rem;
  padding: var(--space-xxs) var(--space-sm);
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  background: rgba(31, 122, 116, 0.12);
  color: var(--teal);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.meta-links a:hover,
.meta-links a:focus-visible {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-tight);
  transform: translateY(-1px);
}

.project-meta {
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-subtle);
}

.meta-table {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-sm) var(--space-lg);
  margin: 0;
}

.meta-table > div {
  display: grid;
  gap: 0.2rem;
}

.meta-table dt {
  margin: 0;
}

.meta-table dd {
  margin: 0;
  font-weight: 600;
}

.project-body {
  display: grid;
  gap: var(--space-2xl);
}

.project-section {
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border-subtle);
}

.project-section:first-of-type {
  padding-top: 0;
  border-top: none;
}

.overview-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
}

.overview-block {
  padding-left: var(--space-sm);
  border-left: 2px solid var(--border-warm);
}

.overview-block h2 {
  margin-bottom: 0.4rem;
  font-size: 1rem;
  font-weight: 600;
}

.trace-grid {
  display: grid;
  gap: var(--space-sm);
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.trace-item {
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-ghost);
  background: var(--cloud);
}

.trace-item.is-active {
  border-color: var(--border-accent-strong);
  background: rgba(31, 122, 116, 0.08);
}

.trace-item.is-muted {
  color: var(--ink-soft);
  opacity: 0.75;
}

.workflow-steps {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 0.45rem;
}

@media (min-width: 900px) {
  .overview-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.notes-grid {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.note-block {
  padding-left: var(--space-sm);
  border-left: 2px solid var(--border-accent);
}

.note-block h3 {
  margin-bottom: 0.4rem;
  font-size: 1rem;
}

.linked-list {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.35rem;
}

.code-snippet {
  background: var(--surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-ghost);
  padding: var(--space-md);
  box-shadow: var(--shadow-soft);
  overflow: auto;
}

.code-snippet code {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--ink);
}

.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.meta-note {
  margin-top: var(--space-xs);
  font-size: 0.85rem;
  color: var(--ink-soft);
  word-break: break-word;
}

.meta-stack {
  display: grid;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.meta-stack:last-child {
  margin-bottom: 0;
}

.meta-list {
  display: grid;
  gap: var(--space-sm);
  margin: 0;
}

.meta-list > div {
  display: grid;
  gap: 0.2rem;
}

.meta-list dt,
.meta-list dd {
  margin: 0;
}

.content {
  max-width: var(--max-content);
}

.content ul {
  padding-left: 1.4rem;
}

.content blockquote {
  margin: 2rem 0;
  padding: 1.2rem 1.6rem;
  border-left: 3px solid var(--gold);
  background: rgba(208, 143, 63, 0.1);
}

.project-aside {
  margin-top: 0;
  padding-left: var(--space-lg);
  border-left: 1px solid var(--border-muted);
}

.project-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 320px);
  gap: var(--space-xl);
  align-items: start;
}

.required-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-lg);
}

.required-block {
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  background: var(--cloud);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-soft);
}

.interface-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.detail-card {
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  background: rgba(252, 250, 247, 0.85);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-soft);
}

.term-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
}

.term-card {
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  background: var(--cloud);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-soft);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.term-card:hover,
.term-card:focus-within {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-medium);
  transform: translateY(-3px);
}

.callout {
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  background: rgba(31, 122, 116, 0.08);
  border: 1px solid var(--border-subtle);
}

.playbook-callout {
  margin-top: var(--space-md);
  background: rgba(220, 49, 73, 0.08);
  border-color: var(--border-brand);
}

.playbook-callout .text-link {
  display: inline-flex;
  margin-top: var(--space-xs);
}

.showcase-callout {
  background: rgba(208, 143, 63, 0.08);
  border-color: var(--border-warm);
}

.aside-block {
  padding-top: var(--space-md);
  margin-bottom: var(--space-lg);
  border-top: 1px solid var(--border-subtle);
}

.aside-block:first-child {
  border-top: none;
  padding-top: 0;
}

.aside-title {
  font-weight: 700;
  margin-bottom: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
  color: var(--ink-soft);
}

.site-footer {
  margin-top: var(--space-4xl);
  padding: var(--space-2xl) 0 var(--space-md);
  border-top: 1px solid var(--border-subtle);
}

.footer-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  margin-bottom: 2rem;
}

.footer-brand {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  margin-bottom: 0.6rem;
}

.footer-note,
.footer-meta {
  color: var(--ink-soft);
}

.footer-title {
  font-weight: 600;
  margin-bottom: 0.6rem;
}

.footer-links {
  display: grid;
  gap: var(--space-xxs);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  color: var(--ink-soft);
  font-size: 0.85rem;
}

[data-animate] {
  animation: float-in 0.6s ease forwards;
  opacity: 0;
  transform: translateY(12px);
}

@keyframes float-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  [data-animate] {
    animation: none;
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 900px) {
  .site-header {
    position: static;
    margin-top: 0;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    right: var(--space-xl);
    top: 4.5rem;
    flex-direction: column;
    align-items: flex-start;
    background: var(--cloud);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-large);
    border: 1px solid var(--border-subtle);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: 0.2s ease;
    gap: var(--space-md);
  }

  .nav-links.nav-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .project-aside {
    margin-top: var(--space-lg);
    padding-left: 0;
    border-left: none;
  }

  .project-layout {
    grid-template-columns: 1fr;
  }

  .intro-grid {
    grid-template-columns: 1fr;
  }

  .filter-toolbar {
    grid-template-columns: 1fr;
  }

  .filter-search {
    flex-direction: column;
    align-items: flex-start;
  }

  .filter-shell {
    padding: var(--space-md);
  }
}

@media (max-width: 640px) {
  .site-shell {
    padding: 1.5rem 1rem 3rem;
  }

  .hero,
  .page-hero {
    padding-top: 2.5rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .cta {
    padding: 2rem;
  }
}