:root{--ds-header-h:72px;--ds-brand-gap:14px;--ds-brand-symbol:40px;--ds-brand-size:24px}@media (width<=1023px){:root{--ds-brand-size:22px}}@media (width<=640px){:root{--ds-header-h:64px;--ds-brand-gap:12px;--ds-brand-symbol:32px;--ds-brand-size:20px}}@media (width<=420px){:root{--ds-brand-gap:8px;--ds-brand-symbol:28px;--ds-brand-size:18px}}@media (width<=360px){:root{--ds-brand-gap:6px;--ds-brand-symbol:26px;--ds-brand-size:16px}}@media (width<=330px){:root{--ds-brand-size:15px}}.ds-site-brand{align-items:center;gap:var(--ds-brand-gap);max-width:100%;min-height:48px;color:var(--color-heading,#fff);white-space:nowrap;flex:none;text-decoration:none;display:inline-flex}.ds-site-brand__symbol{width:var(--ds-brand-symbol);height:var(--ds-brand-symbol);flex:none;display:block}.ds-site-brand__title{font-family:var(--font-display,"Oswald", "Arial Narrow", sans-serif);font-weight:600;font-size:var(--ds-brand-size);letter-spacing:.02em;text-transform:uppercase;white-space:nowrap;text-overflow:clip;line-height:1.1;overflow:visible}@media (width>=1024px){.ds-site-brand+nav,.ds-site-brand+.nav{margin-left:clamp(24px,3vw,40px)}}.ds-header-bar{min-height:var(--ds-header-h)}.theme-toggle{color:#e3e8f2;cursor:pointer;background:0 0;border:1px solid #ffffff47;border-radius:50%;flex:none;justify-content:center;align-items:center;width:36px;height:36px;padding:0;display:inline-flex}.theme-toggle:hover{color:#fff;background:#ffffff1a}.theme-toggle svg{fill:none;stroke:currentColor;stroke-width:1.4px;stroke-linecap:round;stroke-linejoin:round;width:16px;height:16px}.theme-toggle svg[hidden]{display:none}header[data-site-header]{z-index:50;border-bottom:1px solid var(--color-border);background:color-mix(in srgb, var(--color-bg) 94%, transparent);color:var(--color-text);backdrop-filter:blur(8px);transition:transform var(--duration-base,.2s) var(--ease-out,ease-out);position:sticky;top:0}header[data-site-header]>div{align-items:center;gap:var(--space-4)}header[data-site-header] nav[data-site-nav]{column-gap:var(--space-1)}header[data-site-header] nav[data-site-nav] a{min-height:44px;padding:0 var(--space-3);border-radius:var(--radius-md);color:var(--color-text-muted);font:500 1.0625rem/1 var(--font-display);white-space:nowrap;background:0 0;border:0;align-items:center;gap:.4em;text-decoration:none;display:inline-flex;position:relative}header[data-site-header] nav[data-site-nav] a:hover{background:var(--color-surface-alt);color:var(--color-heading)}header[data-site-header] nav[data-site-nav] a[aria-current]{box-shadow:inset 0 -2px 0 var(--color-accent);color:var(--color-heading);background:0 0;border-radius:0}header[data-site-header] nav[data-site-nav] a[aria-current]:after{content:none}header[data-site-header] :is(.menu-toggle,.menu-button){border:1px solid var(--color-border-strong);border-radius:var(--radius-md);width:44px;min-width:44px;height:44px;min-height:44px;color:var(--color-heading);cursor:pointer;background:0 0;justify-content:center;align-items:center;padding:0;position:relative}header[data-site-header] :is(.menu-toggle,.menu-button):hover{background:var(--color-surface-alt)}header[data-site-header] :is(.menu-toggle,.menu-button)>:not(svg){clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}@media (width<=640px){header[data-site-header]>div{gap:var(--space-2)}}@media (width<=1020px){header[data-site-header].is-header-hidden{transform:translateY(-100%)}}@media (prefers-reduced-motion:reduce){header[data-site-header]{transition:none}}@font-face{font-family:Oswald;src:url(/fonts/oswald-latin.woff2)format("woff2");font-weight:200 700;font-display:swap}@font-face{font-family:Roboto;src:url(/fonts/roboto-latin.woff2)format("woff2");font-weight:100 900;font-display:swap}@font-face{font-family:Caveat;src:url(/fonts/caveat-latin.woff2)format("woff2");font-weight:400 700;font-display:swap}@font-face{font-family:Roboto Mono;src:url(/fonts/roboto-mono-regular.woff2)format("woff2");font-weight:400;font-display:swap}@font-face{font-family:Roboto Mono;src:url(/fonts/roboto-mono-medium.woff2)format("woff2");font-weight:500 700;font-display:swap}:root{--brand-night:#00051a;--brand-blue:#050032;--brand-ink:#1a1f36;--brand-orange:#f98510;--brand-white:#fff;--etincelle-800:#a34800;--etincelle-700:#b85200;--etincelle-600:#e07408;--etincelle-500:#f98510;--etincelle-400:#ff9c36;--etincelle-300:#ffb570;--etincelle-100:#fef0e1;--papier-0:#fff;--papier-50:#faf8f5;--papier-100:#f3efe8;--papier-200:#ece7df;--papier-300:#e4ded4;--papier-500:#8c8a86;--gris-600:#5c6276;--gris-500:#7d8397;--nuit-0:#00051a;--nuit-1:#0a0f2a;--nuit-2:#10183c;--nuit-3:#172049;--nuit-line:#232b4d;--nuit-line-strong:#6a7ba3;--brume-100:#f4f6fb;--brume-200:#e3e8f2;--brume-300:#a9b6d0;--brume-400:#66739a;--succes-clair:#157f76;--succes-sombre:#45b5a8;--alerte-clair:#8a6500;--alerte-sombre:#d9b16b;--erreur-clair:#bf211e;--erreur-sombre:#f07a76;--info-clair:#1f6fa8;--info-sombre:#4c9ad6;--succes-fond-clair:#e8f4f2;--succes-fond-sombre:#0a2426;--alerte-fond-clair:#fbf3e0;--alerte-fond-sombre:#2a2213;--erreur-fond-clair:#fceceb;--erreur-fond-sombre:#2a141d;--info-fond-clair:#e9f1f8;--info-fond-sombre:#0d1f33;--font-display:"Oswald", "Arial Narrow", "Roboto Condensed", sans-serif;--font-body:"Roboto", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;--font-mono:"Roboto Mono", ui-monospace, Menlo, Consolas, monospace;--font-hand:"Caveat", "Segoe Print", cursive;--fs-display:clamp(2.75rem, 1.7rem + 4.4vw, 4.75rem);--fs-h1:clamp(2.125rem, 1.6rem + 2.2vw, 3rem);--fs-h2:clamp(1.625rem, 1.35rem + 1.1vw, 2.125rem);--fs-h3:1.375rem;--fs-lead:1.1875rem;--fs-body:1.0625rem;--fs-small:.875rem;--fs-label:.75rem;--fs-hand:1.5rem;--fs-code:.9375rem;--lh-display:1.05;--lh-tight:1.1;--lh-snug:1.25;--lh-text:1.65;--space-1:.25rem;--space-2:.5rem;--space-3:.75rem;--space-4:1rem;--space-5:1.5rem;--space-6:2rem;--space-7:3rem;--space-8:4rem;--space-9:6rem;--radius-sm:4px;--radius-md:8px;--radius-lg:14px;--radius-pill:999px;--border-thin:1px;--border-strong:2px;--duration-fast:.14s;--duration-base:.2s;--ease-out:cubic-bezier(.2, .7, .2, 1);--container:73.75rem;--measure:66ch;--layout-sidebar:188px;--layout-gap:48px;--layout-gutter:clamp(16px, 3vw, 40px);--layout-frame:1500px;--topbar-height:3.75rem;color-scheme:light;--color-bg:var(--papier-50);--color-surface:var(--papier-0);--color-surface-alt:var(--papier-100);--color-surface-hover:var(--papier-200);--color-surface-raised:var(--papier-0);--color-text:var(--brand-ink);--color-heading:var(--brand-blue);--color-text-muted:var(--gris-600);--color-border:var(--papier-300);--color-border-strong:var(--gris-500);--color-accent:var(--etincelle-500);--color-accent-hover:var(--etincelle-400);--color-accent-active:var(--etincelle-600);--color-on-accent:var(--brand-night);--color-accent-soft:var(--etincelle-100);--color-link:var(--etincelle-800);--color-link-hover:var(--brand-blue);--color-annotation:var(--etincelle-700);--color-inverse-bg:var(--brand-blue);--color-inverse-bg-hover:var(--brand-ink);--color-inverse-text:var(--brand-white);--color-focus:var(--etincelle-700);--color-success:var(--succes-clair);--color-warning:var(--alerte-clair);--color-danger:var(--erreur-clair);--color-info:var(--info-clair);--color-success-bg:var(--succes-fond-clair);--color-warning-bg:var(--alerte-fond-clair);--color-danger-bg:var(--erreur-fond-clair);--color-info-bg:var(--info-fond-clair);--color-disabled-bg:var(--papier-200);--color-disabled-text:var(--papier-500);--color-grid:#0500320d;--shadow-sm:0 1px 2px #05003214;--shadow-md:0 8px 20px -6px #05003229;--shadow-lg:0 22px 44px -16px #05003247;--ring-focus:0 0 0 2px var(--color-bg), 0 0 0 4px var(--color-focus)}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){color-scheme:dark;--color-bg:var(--nuit-0);--color-surface:var(--nuit-1);--color-surface-alt:var(--nuit-2);--color-surface-hover:var(--nuit-3);--color-surface-raised:var(--nuit-2);--color-text:var(--brume-100);--color-heading:var(--brand-white);--color-text-muted:var(--brume-300);--color-border:var(--nuit-line);--color-border-strong:var(--nuit-line-strong);--color-accent:var(--etincelle-500);--color-accent-hover:var(--etincelle-400);--color-accent-active:var(--etincelle-600);--color-on-accent:var(--brand-night);--color-accent-soft:#f9851024;--color-link:var(--etincelle-400);--color-link-hover:var(--brand-white);--color-annotation:var(--etincelle-300);--color-inverse-bg:var(--brand-white);--color-inverse-bg-hover:var(--brume-200);--color-inverse-text:var(--brand-blue);--color-focus:var(--etincelle-500);--color-success:var(--succes-sombre);--color-warning:var(--alerte-sombre);--color-danger:var(--erreur-sombre);--color-info:var(--info-sombre);--color-success-bg:var(--succes-fond-sombre);--color-warning-bg:var(--alerte-fond-sombre);--color-danger-bg:var(--erreur-fond-sombre);--color-info-bg:var(--info-fond-sombre);--color-disabled-bg:var(--nuit-2);--color-disabled-text:var(--brume-400);--color-grid:#8fa6cb12;--shadow-sm:0 1px 2px #0006;--shadow-md:0 8px 20px -6px #00000080;--shadow-lg:0 22px 44px -16px #000000b3}}:root[data-theme=dark],.is-night{color-scheme:dark;--color-bg:var(--nuit-0);--color-surface:var(--nuit-1);--color-surface-alt:var(--nuit-2);--color-surface-hover:var(--nuit-3);--color-surface-raised:var(--nuit-2);--color-text:var(--brume-100);--color-heading:var(--brand-white);--color-text-muted:var(--brume-300);--color-border:var(--nuit-line);--color-border-strong:var(--nuit-line-strong);--color-accent:var(--etincelle-500);--color-accent-hover:var(--etincelle-400);--color-accent-active:var(--etincelle-600);--color-on-accent:var(--brand-night);--color-accent-soft:#f9851024;--color-link:var(--etincelle-400);--color-link-hover:var(--brand-white);--color-annotation:var(--etincelle-300);--color-inverse-bg:var(--brand-white);--color-inverse-bg-hover:var(--brume-200);--color-inverse-text:var(--brand-blue);--color-focus:var(--etincelle-500);--color-success:var(--succes-sombre);--color-warning:var(--alerte-sombre);--color-danger:var(--erreur-sombre);--color-info:var(--info-sombre);--color-success-bg:var(--succes-fond-sombre);--color-warning-bg:var(--alerte-fond-sombre);--color-danger-bg:var(--erreur-fond-sombre);--color-info-bg:var(--info-fond-sombre);--color-disabled-bg:var(--nuit-2);--color-disabled-text:var(--brume-400);--color-grid:#8fa6cb12;--shadow-sm:0 1px 2px #0006;--shadow-md:0 8px 20px -6px #00000080;--shadow-lg:0 22px 44px -16px #000000b3}*,:before,:after{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:7rem}body{font-family:var(--font-body);font-size:var(--fs-body);line-height:var(--lh-text);background:var(--color-bg);color:var(--color-text);-webkit-font-smoothing:antialiased;overflow-wrap:break-word;margin:0}h1,h2,h3,h4,p{margin:0}h1,h2,h3,h4{font-family:var(--font-display);color:var(--color-heading);font-weight:500;line-height:1.18}h2{font-size:var(--fs-h1)}h3{font-size:var(--fs-h3)}a{color:var(--color-link);text-underline-offset:.25em}a:hover{text-decoration-thickness:2px}button{font:inherit;cursor:pointer}button,a{-webkit-tap-highlight-color:transparent}svg{max-width:100%;display:block}::selection{background:var(--etincelle-300);color:var(--brand-night)}:focus-visible{outline:2px solid var(--color-focus);outline-offset:4px;border-radius:var(--radius-sm)}[hidden]{display:none!important}.container{width:min(100% - 3rem, var(--container));margin-inline:auto}.sr-only{clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip{z-index:100;background:var(--brand-orange);color:var(--brand-night);border-radius:var(--radius-md);padding:.75rem 1rem;font-weight:700;position:fixed;top:1rem;left:1rem;transform:translateY(-180%)}.skip:focus{transform:translateY(0)}.icon{flex-shrink:0;width:24px;height:24px}.is-night{background:var(--color-bg);color:var(--color-text)}.kicker{font:500 .75rem/1.5 var(--font-mono);text-transform:uppercase;letter-spacing:.08em;color:var(--color-text-muted);align-items:center;gap:.75rem;display:flex}.kicker:before{content:"";background:var(--brand-orange);flex-shrink:0;width:28px;height:3px}.hand{font:700 1.75rem/1.1 var(--font-hand);color:var(--color-annotation)}.muted{color:var(--color-text-muted)}.btn{border-radius:var(--radius-md);background:var(--color-accent);min-height:48px;color:var(--color-on-accent);border:2px solid #0000;justify-content:center;align-items:center;gap:.75rem;padding:.875rem 1.5rem;font-size:1rem;font-weight:600;line-height:1.3;text-decoration:none;transition:background .14s,transform .14s;display:inline-flex}.btn:hover{background:var(--color-accent-hover)}.btn:active{background:var(--color-accent-active);transform:translateY(1px)}.btn .icon{width:19px;height:19px}.btn-outline{border-color:var(--color-heading);color:var(--color-heading);background:0 0}.btn-outline:hover{background:var(--color-surface-alt)}.text-link{align-items:center;gap:.5rem;min-height:44px;font-size:1rem;font-weight:600;display:inline-flex}.text-link .icon{width:18px;height:18px;transition:transform .2s}.text-link:hover .icon{transform:translate(3px)}.actions{flex-wrap:wrap;align-items:center;gap:1rem;display:flex}.section{padding-block:var(--space-9)}.section-head{max-width:700px;margin-bottom:2.5rem}.section-head h2{margin-top:1rem}.section-head p{color:var(--color-text-muted);margin-top:1.25rem}.prose p+p{margin-top:1.25rem}.site-header{z-index:30;border-bottom:1px solid var(--color-border);position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;gap:1.5rem;min-height:88px;display:flex}.wordmark{color:var(--color-heading);flex-direction:column;flex-shrink:0;align-items:flex-start;text-decoration:none;display:inline-flex}.wordmark-name{font:500 1.5rem/1 var(--font-display);letter-spacing:.035em}.wordmark-branch{font:500 .7rem/1.2 var(--font-mono);letter-spacing:.21em;border-bottom:3px solid var(--brand-orange);margin-top:.45rem;padding-bottom:.3rem;padding-right:1.6rem}.nav{align-items:center;gap:1.35rem;display:flex}.nav a{min-height:44px;color:var(--color-text-muted);align-items:center;font-size:.875rem;font-weight:500;text-decoration:none;display:inline-flex;position:relative}.nav a:hover,.nav a[aria-current]{color:var(--color-heading)}.nav a[aria-current]:after{content:"";background:var(--brand-orange);height:2px;position:absolute;bottom:5px;left:0;right:0}.header-tools{align-items:center;gap:.5rem;display:flex}.menu-toggle{border-radius:var(--radius-md);border:1px solid var(--color-border-strong);width:44px;height:44px;color:var(--color-heading);background:0 0;justify-content:center;align-items:center;display:none}.hero{isolation:isolate;background-image:linear-gradient(var(--color-grid) 1px,transparent 1px),linear-gradient(90deg,var(--color-grid) 1px,transparent 1px);background-size:32px 32px;position:relative}.hero-inner{grid-template-columns:1.22fr 1fr;align-items:center;gap:4rem;padding-top:5rem;padding-bottom:4rem;display:grid}.hero h1{font-size:var(--fs-display);text-transform:uppercase;letter-spacing:-.02em;margin-top:1.75rem;line-height:1.1}.hero h1 span{color:var(--brand-orange)}.hero-lead{font-size:var(--fs-lead);color:var(--color-text-muted);max-width:51ch;margin-top:1.75rem}.hero-lead strong{color:var(--color-text);font-weight:500}.hero .actions{gap:1rem 1.5rem;margin-top:2rem}.hero-note{color:var(--color-text-muted);margin-top:1rem;font-size:.8125rem}.workbook{background:var(--papier-50);color:var(--brand-ink);border-radius:var(--radius-lg);border:1px solid var(--papier-300);box-shadow:12px 14px 0 var(--nuit-2);padding:2rem 2rem 1.75rem;position:relative;transform:rotate(2deg)}.workbook:before{content:"";background:var(--brand-orange);border-radius:0 0 4px 4px;height:4px;position:absolute;top:0;left:1.2rem;right:1.2rem}.workbook-head{border-bottom:1px solid var(--papier-300);font:500 .7rem/1.5 var(--font-mono);letter-spacing:.08em;color:var(--gris-600);justify-content:space-between;align-items:center;padding-bottom:1.25rem;display:flex}.workbook-head svg{width:20px;height:20px}.workbook-title{font:500 2rem/1.15 var(--font-display);color:var(--brand-blue);margin-block:1.5rem}.workbook-steps{margin:0;padding:0;list-style:none}.workbook-steps li{border-top:1px solid var(--papier-300);align-items:center;gap:1rem;padding-block:1rem;display:flex}.workbook-steps .step-no{border:1px solid var(--gris-500);width:2rem;height:2rem;font:500 .75rem var(--font-mono);border-radius:50%;flex-shrink:0;place-items:center;display:grid}.workbook-steps strong{font:500 1.25rem/1.2 var(--font-display);color:var(--brand-blue);text-transform:uppercase;display:block}.workbook-steps p{color:var(--gris-600);margin-top:.25rem;font-size:.875rem}.workbook-foot{color:var(--etincelle-700);justify-content:flex-end;align-items:center;gap:.5rem;margin-top:.5rem;display:flex}.workbook-foot .hand{color:var(--etincelle-700);transform:rotate(-5deg)}.workbook-foot svg{width:42px;height:30px;transform:rotate(180deg)}.hero-baseline{border-top:1px solid var(--color-border);grid-template-columns:repeat(3,1fr);padding-block:1.75rem;display:grid}.hero-baseline p{color:var(--color-text-muted);align-items:center;gap:.75rem;font-size:.875rem;display:flex}.hero-baseline span{font:500 .7rem var(--font-mono);color:var(--color-link)}.vision-grid{grid-template-columns:1fr 1.1fr;gap:6rem;display:grid}.vision-title h2{max-width:12ch;margin-top:1rem}.vision-title .hand{margin-top:1.75rem;display:block;transform:rotate(-3deg)}.vision-prose{color:var(--color-text-muted)}.vision-prose strong{color:var(--color-text);font-weight:500}.belief{border-left:3px solid var(--brand-orange);color:var(--color-text);margin-top:1.5rem;padding-left:1.25rem}.pillars-section{border-block:1px solid var(--color-border);background:var(--color-surface-alt)}.pillar-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:1.5rem;display:grid}.pillar{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);flex-direction:column;padding:2rem;display:flex}.pillar-top{color:var(--color-text-muted);justify-content:space-between;align-items:center;margin-bottom:2rem;display:flex}.pillar-top span{font:500 .75rem var(--font-mono)}.pillar-top svg{width:28px;height:28px}.pillar h3{max-width:15ch;font-size:1.625rem}.pillar-lead{color:var(--color-text);margin-block:1rem;font-weight:500}.pillar p:not(.pillar-lead){color:var(--color-text-muted);font-size:1rem}.pillar p+p{margin-top:1rem}.explore{margin-top:auto;padding-top:1.5rem}.explore-inner{border-top:1px solid var(--color-border);padding-top:1.25rem}.explore-label{font:500 .7rem var(--font-mono);text-transform:uppercase;letter-spacing:.08em;color:var(--color-link)}.explore 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