:root {
  --blue: #0a4c9b;
  --blue-dark: #062d78;
  --blue-bright: #0877ed;
  --light-blue: #74b6f2;
  --turquoise: #00b3b3;
  --orange: #ff8a00;
  --sand: #e7dcc2;
  --ink: #2e3640;
  --soft: #f2f8fc;
  --line: #d6e8f7;
  --white: #fff;
  color-scheme: light;
  font-family: Arial, Helvetica, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 18rem; overflow-x: clip; color: var(--ink); background: var(--white); line-height: 1.45; }
a { color: var(--blue-bright); }
h1, h2, h3 { color: var(--blue-dark); line-height: 1.08; }
h1 { margin: .2em 0; font-size: clamp(2.45rem, 5vw, 4.9rem); letter-spacing: -.045em; }
h2 { margin: 0 0 .75rem; font-size: clamp(1.65rem, 2.8vw, 2.25rem); letter-spacing: -.025em; }
h3 { margin: .35rem 0; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; padding: 0 !important; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 30; top: .5rem; left: .5rem; padding: .65rem 1rem; transform: translateY(-160%); border-radius: .35rem; background: var(--blue); color: var(--white); }
.skip-link:focus { transform: translateY(0); }
a:focus-visible, input:focus-visible, summary:focus-visible { outline: 3px solid var(--orange); outline-offset: 3px; }

.site-header { position: relative; z-index: 5; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: clamp(1rem, 3vw, 3rem); width: min(100%, 96rem); min-height: 6.8rem; margin: auto; padding: 1.2rem clamp(1.5rem, 5vw, 5rem); background: rgba(255,255,255,.96); }
.brand { display: flex; align-items: center; gap: .8rem; min-width: max-content; text-decoration: none; }
.brand-wheel { position: relative; display: block; width: clamp(3.5rem, 5vw, 4.6rem); aspect-ratio: 1; border: .65rem solid transparent; border-radius: 50%; background: conic-gradient(from -12deg, #06469d 0 11%, transparent 11% 14%, #187af2 14% 25%, transparent 25% 28%, #67a9f5 28% 39%, transparent 39% 42%, #00aeb3 42% 53%, transparent 53% 56%, #5d9eee 56% 67%, transparent 67% 70%, #ff7900 70% 81%, transparent 81% 84%, #e4bb87 84% 95%, transparent 95%) border-box; }
.brand-wheel::before { position: absolute; inset: -.25rem; border: .3rem solid #fff; border-radius: 50%; content: ""; }
.brand-wheel i { position: absolute; inset: 24%; border: .24rem solid white; border-radius: 50%; background: var(--blue); }
.brand b { display: block; color: var(--blue); font-size: clamp(1.45rem, 2.2vw, 2.15rem); line-height: .95; letter-spacing: .01em; }
.brand em { color: #ff6c00; font-style: normal; }
.brand small { display: block; margin-top: .38rem; color: var(--blue); font-size: .72rem; }
.site-header nav { display: flex; justify-content: flex-end; gap: clamp(1.2rem, 3vw, 3.1rem); }
.site-header nav a { position: relative; padding: .65rem .1rem; color: var(--blue-dark); font-weight: 700; text-decoration: none; white-space: nowrap; }
.site-header nav a[aria-current="page"]::after { position: absolute; right: 0; bottom: .25rem; left: 0; height: .16rem; border-radius: 1rem; background: var(--orange); content: ""; }
.gear { display: grid; place-items: center; width: 2.35rem; aspect-ratio: 1; border: 1px solid var(--line); border-radius: 50%; background: #fff; color: var(--blue); text-decoration: none; }
.gear:hover { transform: rotate(12deg); }

footer { display: flex; justify-content: space-between; align-items: center; gap: 2rem; width: min(100%, 96rem); min-height: 3.8rem; margin: auto; padding: 1rem clamp(1.5rem, 5vw, 5rem); border-top: 1px solid var(--line); color: #586a88; font-size: .78rem; }
footer p { margin: 0; }
footer nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: .5rem 1.4rem; }
footer nav a { text-decoration: none; }

/* Accueil : à partir de 53rem, les trois rangées occupent exactement la hauteur disponible. */
.home-page { display: grid; grid-template-rows: auto minmax(0, 1fr) auto; height: 100svh; min-height: 42rem; }
.home-page main { display: grid; grid-template-rows: minmax(0, 1fr) auto; min-height: 0; }
.home-hero { position: relative; display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(25rem, .98fr); align-items: center; gap: clamp(1.5rem, 4vw, 5rem); width: min(100%, 96rem); min-height: 0; margin: auto; padding: clamp(1rem, 3vh, 2.4rem) clamp(1.5rem, 5vw, 5rem); }
.home-hero::before, .page-intro::before, .project-hero::before { position: absolute; z-index: -1; width: 23rem; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, rgba(116,182,242,.17), rgba(116,182,242,0) 70%); content: ""; }
.home-hero::before { top: -6rem; right: 25%; }
.hero-copy { position: relative; z-index: 1; }
.home-hero .eyebrow { margin-bottom: clamp(.8rem, 2vh, 1.5rem); }
.home-hero h1 { margin: 0 0 clamp(.8rem, 2vh, 1.5rem); font-size: clamp(2.5rem, min(4.55vw, 7vh), 4.65rem); }
.home-hero h1 span, .project-hero h1 span { color: var(--blue-bright); }
.home-hero .hero-copy > p:last-child { max-width: 42rem; margin: 0; color: #244b99; font-size: clamp(.98rem, min(1.35vw, 2.2vh), 1.22rem); }
.eyebrow { margin: 0 0 1.1rem; color: var(--blue-bright); font-size: clamp(.76rem, 1vw, .92rem); font-weight: 700; letter-spacing: .23em; text-transform: uppercase; }
.ecosystem { position: relative; justify-self: center; width: min(35vw, 47vh, 31rem); aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, rgba(116,182,242,.22), rgba(116,182,242,.06) 56%, transparent 57%); }
.orbit { position: absolute; border: 1.5px dashed rgba(8,119,237,.38); border-radius: 50%; }
.orbit-one { inset: 10%; }.orbit-two { inset: 25%; }
.ecosystem-wheel { position: absolute; inset: 30%; border: clamp(.75rem, 1.4vw, 1.15rem) solid transparent; border-radius: 50%; background: conic-gradient(from -12deg, #06469d 0 11%, transparent 11% 14%, #187af2 14% 25%, transparent 25% 28%, #67a9f5 28% 39%, transparent 39% 42%, #00aeb3 42% 53%, transparent 53% 56%, #5d9eee 56% 67%, transparent 67% 70%, #ff7900 70% 81%, transparent 81% 84%, #e4bb87 84% 95%, transparent 95%) border-box; box-shadow: 0 0 0 .7rem white inset, 0 1rem 3rem rgba(10,76,155,.12); }
.ecosystem-wheel i { position: absolute; inset: 25%; border: .35rem solid white; border-radius: 50%; background: var(--blue); }
.satellite { position: absolute; display: grid; justify-items: center; gap: .2rem; width: 6rem; color: var(--blue-dark); text-align: center; }
.satellite b { display: grid; place-items: center; width: clamp(3.2rem, 5vw, 4.6rem); aspect-ratio: 1; border-radius: 50%; background: #438ff2; color: white; box-shadow: 0 .7rem 1.6rem rgba(10,76,155,.14); font-size: clamp(1.4rem, 2vw, 2rem); }
.satellite small { font-size: clamp(.7rem, 1vw, .9rem); font-weight: 700; }
.satellite-ref { top: -2%; left: 12%; }.satellite-actors { top: -5%; right: 8%; }.satellite-actors b { background: #ff6c00; }
.satellite-territories { top: 38%; right: -10%; }.satellite-territories b { background: var(--turquoise); }
.satellite-data { right: 5%; bottom: -2%; }.satellite-data b { background: #0759d9; }
.satellite-links { bottom: -7%; left: 20%; }.satellite-links b { background: #d8a56f; }
.satellite-uses { top: 48%; left: -10%; }
.home-principles { width: min(100%, 96rem); margin: auto; padding: 0 clamp(1.5rem, 5vw, 5rem); }
.principle-grid { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line); }
.principle-grid article { min-width: 0; padding: clamp(.55rem, 1.5vh, 1.15rem) .7rem; text-align: center; }
.principle-grid article + article { border-left: 1px solid var(--line); }
.principle-grid span { color: var(--turquoise); font-size: clamp(1.55rem, min(2.3vw, 3.5vh), 2.35rem); line-height: 1; }
.principle-grid article:nth-child(3) span { color: var(--orange); }
.principle-grid h3 { margin: .2rem 0 0; font-size: clamp(.64rem, min(.9vw, 1.65vh), .88rem); letter-spacing: .12em; text-transform: uppercase; }

/* Projet */
.project-page { width: min(100%, 90rem); margin: auto; padding: 0 clamp(1.5rem, 3.8vw, 4rem); }
.project-hero { position: relative; display: grid; grid-template-columns: minmax(0, 1.06fr) minmax(24rem, .94fr); align-items: center; gap: 2rem; min-height: 30rem; padding: 2.2rem 1.25rem 3rem; }
.project-hero::before { top: -8rem; right: 20%; }
.project-hero h1 { font-size: clamp(2.5rem, 4.7vw, 4.25rem); }
.project-hero .hero-copy > p:not(.eyebrow) { max-width: 44rem; color: #3659a9; }
.project-wheel { position: relative; justify-self: center; width: min(34rem, 42vw); aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, rgba(116,182,242,.18) 0 55%, transparent 56%); }
.project-ring { position: absolute; inset: 25%; border: .18rem dashed #83b9ed; border-radius: 50%; }
.project-hub { position: absolute; z-index: 2; inset: 36%; display: grid; place-items: center; border: .7rem solid #8fc1f4; border-radius: 50%; background: var(--blue); color: white; text-align: center; font-weight: 700; }
.function { position: absolute; display: grid; grid-template-columns: auto 1fr; align-items: center; width: 10.5rem; color: var(--blue-dark); }
.function b { grid-row: span 2; display: grid; place-items: center; width: 3.2rem; aspect-ratio: 1; margin-right: .45rem; border-radius: 50%; background: #438ff2; color: white; font-size: 1.5rem; }
.function strong, .function small { line-height: 1.1; }.function small { color: #5071ba; }
.function-ref { top: 8%; left: 1%; }.function-match { top: 3%; right: -5%; }.function-match b { background: #ff6c00; }
.function-reuse { top: 56%; right: -5%; }.function-trace { right: 29%; bottom: 0; }.function-trace b { background: #d3a16e; }
.function-history { top: 57%; left: -3%; }.function-history b { background: var(--turquoise); }
.project-section { padding: 1.6rem 1.25rem; border-top: 1px solid var(--line); }
.feature-grid, .project-principles, .flow { display: grid; }
.feature-grid { grid-template-columns: repeat(3, 1fr); }
.feature-grid article { display: grid; grid-template-columns: auto 1fr; gap: 1rem; padding: .75rem 1.5rem; }
.feature-grid article + article, .project-principles article + article { border-left: 1px solid #a9cff0; }
.feature-grid span, .project-principles span { color: var(--turquoise); font-size: 2.6rem; line-height: 1; }
.feature-grid article:first-child span { color: var(--orange); }
.feature-grid p, .project-principles p, .flow p { margin: .3rem 0; color: #4160a9; font-size: .9rem; }
.project-principles { grid-template-columns: repeat(4, 1fr); }
.project-principles article { padding: .5rem 1.3rem; }
.project-principles article:nth-child(2) span { color: var(--orange); }
.flow { grid-template-columns: repeat(5, 1fr); }
.flow article { position: relative; padding: .3rem 1rem; text-align: center; }
.flow article:not(:last-child)::after { position: absolute; top: 1.55rem; right: -1rem; width: 2rem; color: var(--blue-bright); content: "→"; }
.flow span { display: grid; place-items: center; width: 3.5rem; aspect-ratio: 1; margin: 0 auto .5rem; border-radius: 50%; background: #e7f2fd; color: var(--blue-bright); font-size: 1.3rem; font-weight: 700; }
.flow article:nth-child(2) span { background: #ffead7; color: var(--orange); }.flow article:nth-child(4) span { background: #dff8f8; color: var(--turquoise); }
.limits > div { display: grid; grid-template-columns: repeat(2, 1fr); }
.limits article { display: grid; grid-template-columns: auto 1fr; gap: 1rem; padding: .6rem 1.5rem; }
.limits article + article { border-left: 1px solid #a9cff0; }
.limits article > span { display: grid; place-items: center; width: 2.8rem; aspect-ratio: 1; border: .2rem solid var(--turquoise); border-radius: 50%; color: var(--turquoise); font-size: 1.6rem; }
.limits article + article > span { border-color: var(--orange); color: var(--orange); }
.limits p { margin: .3rem 0; color: #4160a9; }
.living-doc { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 1rem; padding: 1.2rem; border-top: 1px solid var(--line); }
.living-doc > span { display: grid; place-items: center; width: 3.5rem; aspect-ratio: 1; border-radius: 50%; background: #0862dc; color: white; font-size: 1.8rem; }
.living-doc h2, .living-doc p { margin: 0; }.living-doc a { font-weight: 700; }
.architecture { padding: 1.2rem 1.25rem 1.6rem; border-top: 1px solid var(--line); background: linear-gradient(180deg, #fff, #f1f8fd); }
.diagram-label { margin: 0; color: var(--orange); font-size: .76rem; font-weight: 700; letter-spacing: .15em; text-transform: uppercase; }
.architecture-flow { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr auto 1fr; align-items: stretch; }
.architecture-flow article { display: grid; min-height: 8.5rem; align-content: center; padding: 1rem; border: 1px solid var(--line); border-radius: .8rem; background: white; text-align: center; }
.architecture-flow article:nth-of-type(even) { background: #eefbfb; }.architecture-flow article:last-of-type { background: #fff4e8; }
.architecture-flow small { color: #5371ad; text-transform: uppercase; }.architecture-flow b { color: var(--blue-dark); }.architecture-flow p { margin: .35rem 0 0; font-size: .78rem; }
.architecture-flow i { align-self: center; padding: .25rem; color: var(--blue-bright); font-style: normal; }
.governance { margin: .75rem 0 0; padding: .5rem; border-radius: 1rem; background: #e3f1fc; color: var(--blue-dark); text-align: center; font-size: .8rem; font-weight: 700; }

/* Sources */
.page-intro { position: relative; width: min(100%, 90rem); margin: auto; padding: clamp(4rem, 9vw, 8rem) clamp(1.5rem, 4vw, 4rem) 1.8rem; }
.page-intro::before { top: -12rem; right: 8%; }
.page-intro h1 { font-size: clamp(2.8rem, 5vw, 4.4rem); }
.page-intro > p:last-of-type { max-width: 62rem; color: #3659a9; font-size: 1.08rem; }
.source-catalogue { width: min(100%, 90rem); margin: auto; padding: 0 clamp(1.5rem, 4vw, 4rem) 4rem; }
.filters { display: grid; grid-template-columns: auto minmax(15rem, 31rem) 1fr; align-items: center; gap: 1rem; margin-bottom: 1.4rem; }
.filters label { font-weight: 700; }.filters p { justify-self: end; margin: 0; color: var(--blue); font-weight: 700; }
.filters input, .library-search input { width: 100%; min-width: 0; padding: .78rem 1rem; border: 1px solid #a9ccec; border-radius: .5rem; color: var(--ink); font: inherit; }
.catalogue-heading { margin: 1.3rem 0 .8rem; font-size: 1.35rem; }
.study-heading { margin-top: 1.7rem; }
.source-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: .65rem; }
.source-card { display: flex; min-width: 0; min-height: 19.5rem; flex-direction: column; padding: 1rem; border: 1px solid var(--line); border-radius: .8rem; background: linear-gradient(155deg, #fff 60%, #f5fbff); box-shadow: 0 .25rem 1rem rgba(10,76,155,.04); }
.source-card .code { align-self: flex-start; padding: .36rem .68rem; border-radius: .45rem; background: #377fec; color: white; font-size: .76rem; }
.source-card:nth-child(3n) .code { background: var(--orange); }.source-card:nth-child(3n+2) .code { background: var(--turquoise); }
.source-card h3 { margin-top: .8rem; overflow-wrap: anywhere; font-size: 1.08rem; }.source-card p { margin: .25rem 0; font-size: .82rem; overflow-wrap: anywhere; }
.source-producer { min-height: 2.3rem; color: #3557aa; }
.source-status { margin-top: auto; padding: .38rem .6rem; border-radius: 2rem; text-align: center; font-size: .8rem; }
.status-acquired { background: #dff7f5; color: #006d6d; }.status-planned { background: #fff0e1; color: #a34800; }.status-distinct { background: #eef2f6; color: #4b5764; }
.source-card small { display: block; margin-top: .5rem; color: #58687c; font-size: .73rem; overflow-wrap: anywhere; }
.source-card a { margin-top: .75rem; font-weight: 700; text-decoration: none; }
.full-registry { margin-top: 1.8rem; border-block: 1px solid var(--line); }
.full-registry summary { padding: 1rem 0; color: var(--blue-dark); cursor: pointer; font-size: 1.1rem; font-weight: 700; }
.registry-grid { padding: 0 0 1.5rem; }
.catalogue-note { display: flex; gap: .8rem; margin: 2rem 0 0; padding: 1rem; border-radius: .6rem; background: var(--soft); color: #3557aa; }
.catalogue-note span { color: var(--blue); font-size: 1.5rem; }

/* Bibliothèque */
.library-intro { padding-top: 1.4rem; padding-bottom: 1.5rem; }
.library-intro h1 { font-size: clamp(2.8rem, 4vw, 4rem); }
.library-search { position: relative; display: flex; align-items: center; margin-top: 1.2rem; }
.library-search > span { position: absolute; left: 1rem; z-index: 1; color: var(--blue); font-size: 1.35rem; }.library-search input { padding-left: 3rem; }
.library-layout { display: grid; grid-template-columns: minmax(12rem, 16rem) minmax(0, 1fr) minmax(14rem, 19rem); align-items: start; gap: 2.2rem; width: min(100%, 90rem); margin: auto; padding: 0 clamp(1.5rem, 4vw, 4rem) 4rem; }
.library-toc { display: grid; gap: .25rem; padding: 1.1rem .7rem; border-radius: .8rem; background: var(--soft); }
.library-toc h2, .library-meta h2 { padding-inline: .6rem; font-size: 1rem; }
.library-toc a { display: flex; gap: .6rem; padding: .65rem .7rem; border-radius: .4rem; text-decoration: none; }.library-toc a[aria-current="page"] { background: #e0effc; font-weight: 700; }
.library-article { min-width: 0; }.library-article > h2 { font-size: clamp(2rem, 3vw, 2.8rem); }.breadcrumb { color: #4160a9; font-size: .82rem; }.breadcrumb span { margin: 0 .4rem; }.article-lead { color: #4160a9; }
.document-grid { display: grid; gap: 1rem; }.document-card { padding: 1.2rem; border: 1px solid var(--line); border-radius: .6rem; }.document-card a { display: inline-block; margin: .5rem 1rem 0 0; padding: .5rem .7rem; border: 1px solid var(--blue); border-radius: .35rem; text-decoration: none; }
.empty { margin: 1.5rem 0; padding: 2.8rem 1.5rem; border: 1px solid var(--line); border-radius: .7rem; background: linear-gradient(145deg, #fff, var(--soft)); text-align: center; }.empty span { color: var(--turquoise); font-size: 3rem; }.empty h2 { font-size: 1.3rem; }
.library-explainer { margin-top: 1.5rem; padding: 1rem 1.2rem; border-left: .3rem solid var(--turquoise); background: var(--soft); }.library-explainer p { margin: .35rem 0; }
.library-meta { display: grid; gap: 1rem; }.library-meta section { padding: 1rem; border: 1px solid var(--line); border-radius: .7rem; }.library-meta dl { display: grid; grid-template-columns: auto 1fr; gap: .45rem 1rem; margin: 0; font-size: .84rem; }.library-meta dt { color: var(--blue); }.library-meta dd { margin: 0; overflow-wrap: anywhere; }.library-meta p { font-size: .85rem; }.approved-note { color: #58687c; }
.empty-search { padding: 1rem; background: var(--soft); }

.published-editorial { width: min(88rem, calc(100% - 3rem)); margin: 0 auto 2rem; padding: 1.2rem 2rem; border-left: .35rem solid var(--turquoise); background: var(--soft); }
.legal-page { min-height: 66vh; padding: clamp(2.5rem, 6vw, 6rem) 1.5rem; background: radial-gradient(circle at 80% 10%, #edf7fe, transparent 30%); }
.legal-page article { max-width: 52rem; margin: auto; padding: clamp(1.5rem, 4vw, 3rem); border: 1px solid var(--line); border-radius: 1rem; background: rgba(255,255,255,.94); box-shadow: 0 1rem 3rem rgba(10,76,155,.06); }
.legal-page h1 { font-size: clamp(2.5rem, 5vw, 4.2rem); }.legal-page h2 { margin-top: 2rem; padding-top: 1.2rem; border-top: 1px solid var(--line); }

@media (max-width: 72rem) {
  .source-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .library-layout { grid-template-columns: 13rem minmax(0, 1fr); }
  .library-meta { grid-column: 2; grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .project-wheel { width: min(30rem, 43vw); }.function { width: 9rem; font-size: .82rem; }
}

@media (max-width: 52rem) {
  .site-header { grid-template-columns: 1fr auto; min-height: 0; padding-block: 1rem; }
  .site-header nav { grid-column: 1 / -1; grid-row: 2; justify-content: flex-start; flex-wrap: wrap; gap: .2rem 1.2rem; }
  .gear { grid-column: 2; grid-row: 1; }
  .home-page { display: block; height: auto; min-height: 0; }
  .home-page main { display: block; }
  .home-hero, .project-hero { grid-template-columns: 1fr; min-height: 0; padding-block: 3rem; }
  .ecosystem { width: min(28rem, 78vw); margin-block: 2rem; }
  .project-wheel { width: min(31rem, 88vw); margin: 1rem 0 2rem; }
  .principle-grid { grid-template-columns: repeat(2, 1fr); }.principle-grid article { border-bottom: 1px solid var(--line); }
  .feature-grid { grid-template-columns: 1fr; }.feature-grid article + article { border-top: 1px solid var(--line); border-left: 0; }
  .project-principles, .flow { grid-template-columns: repeat(2, 1fr); }.project-principles article:nth-child(3) { border-left: 0; }
  .flow article::after { display: none; }
  .architecture-flow { grid-template-columns: 1fr; gap: .5rem; }.architecture-flow i { justify-self: center; transform: rotate(90deg); }
  .source-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }.filters { grid-template-columns: 1fr; }.filters p { justify-self: start; }
  .library-layout { grid-template-columns: 1fr; }.library-toc { grid-template-columns: repeat(2, minmax(0, 1fr)); }.library-toc h2 { grid-column: 1 / -1; }.library-meta { grid-column: auto; }
}

@media (max-width: 38rem) {
  .brand small { display: none; }.brand-wheel { width: 3.2rem; }.site-header nav a { white-space: normal; }
  footer { align-items: flex-start; flex-direction: column; }.ecosystem { width: min(22rem, 78vw); }.satellite { width: 4.7rem; }.satellite b { width: 3rem; }.satellite small { font-size: .65rem; }
  .project-wheel { width: min(22rem, 86vw); }.function { width: 7.4rem; font-size: .7rem; }.function b { width: 2.5rem; }.function-match, .function-reuse { right: -8%; }.function-history { left: -8%; }
  .principle-grid, .project-principles, .flow, .source-grid, .limits > div, .library-meta { grid-template-columns: 1fr; }
  .principle-grid article + article, .project-principles article + article, .limits article + article { border-top: 1px solid var(--line); border-left: 0; }.project-principles article:nth-child(3) { border-top: 1px solid var(--line); }
  .source-card { min-height: 0; }.library-toc { grid-template-columns: 1fr; }.living-doc { grid-template-columns: auto 1fr; }.living-doc a { grid-column: 2; }
  footer nav { justify-content: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
  .gear:hover { transform: none; }
}