/* Polices auto-hébergées (licence OFL, voir assets/fonts) : pas de requête vers un tiers */
@font-face{font-family:"Archivo";font-style:normal;font-weight:100 900;font-stretch:62% 125%;font-display:swap;src:url(fonts/archivo-latin-wdth-normal.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Mono";font-style:normal;font-weight:400;font-display:swap;src:url(fonts/ibm-plex-mono-latin-400-normal.woff2) format("woff2")}
:root{
  --paper:#EEF1F4;
  --paper-2:#E3E8ED;
  --ink:#000000;
  --ink-soft:#4A5866;
  --rule:#C9D2DB;
  --raspberry:#C51A4A;
  --signal:#267262; /* assez sombre pour rester lisible (AA) sur toutes les surfaces claires */
  --node:#FFFFFF;
  --focus:#1D5FD1;
  --nav-h:61px;
  box-sizing:border-box;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --paper:#111112;
    --paper-2:#1B1B1D;
    --ink:#EDEDED;
    --ink-soft:#A1A1A6;
    --rule:#303033;
    --raspberry:#F0507A;
    --signal:#5CC2AC;
    --node:#232326;
    --focus:#7FB0FF;
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --paper:#111112;
  --paper-2:#1B1B1D;
  --ink:#EDEDED;
  --ink-soft:#A1A1A6;
  --rule:#303033;
  --raspberry:#F0507A;
  --signal:#5CC2AC;
  --node:#232326;
  --focus:#7FB0FF;
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:inherit}
html{scroll-padding-top:110px;scroll-behavior:smooth;scrollbar-gutter:stable}

/* Barre de défilement : suit le thème, framboise au survol.
   Chrome et Safari lisent les pseudo-éléments WebKit, Firefox les propriétés standard. */
@supports selector(::-webkit-scrollbar){
  ::-webkit-scrollbar{width:14px;height:14px}
  ::-webkit-scrollbar-track{background:var(--paper);border-left:1px solid var(--rule)}
  ::-webkit-scrollbar-thumb{
    background:color-mix(in srgb,var(--ink-soft) 55%,transparent);
    border:4px solid var(--paper);border-radius:999px;background-clip:padding-box;min-height:48px;
  }
  ::-webkit-scrollbar-thumb:hover,::-webkit-scrollbar-thumb:active{background:var(--raspberry);background-clip:padding-box}
  ::-webkit-scrollbar-corner{background:var(--paper)}
  .nav ul::-webkit-scrollbar{display:none}
}
@supports not selector(::-webkit-scrollbar){
  html{scrollbar-width:thin;scrollbar-color:color-mix(in srgb,var(--ink-soft) 55%,var(--paper)) var(--paper)}
}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:"Archivo",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-variation-settings:"wdth" 100;
  font-size:1.0625rem;line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%}
a{color:inherit}
:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:2px}
.wrap{
  max-width:1160px;margin:0 auto;
  padding-left:max(clamp(1.25rem,4vw,2.5rem),env(safe-area-inset-left,0px));
  padding-right:max(clamp(1.25rem,4vw,2.5rem),env(safe-area-inset-right,0px));
}
.mono{font-family:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace}

/* Nav */
.nav{
  position:sticky;top:0;z-index:10;padding-top:env(safe-area-inset-top,0px);
  background:color-mix(in srgb,var(--paper) 88%,transparent);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--rule);
}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;height:60px}
.brand{font-weight:800;font-variation-settings:"wdth" 120;text-decoration:none;letter-spacing:-.01em;display:flex;align-items:center;gap:.55rem}
.brand-dot{width:10px;height:10px;border-radius:50%;background:var(--raspberry)}
.nav ul{display:flex;gap:clamp(.75rem,2.5vw,1.75rem);list-style:none;margin:0;padding:0}
.nav ul a{text-decoration:none;color:var(--ink-soft);font-size:.95rem;transition:color .15s ease}
.nav ul a:hover{color:var(--ink)}
.nav-tools{display:flex;align-items:center;gap:.5rem;flex:none}
.lang{
  display:grid;place-items:center;min-width:36px;height:36px;padding:0 .55rem;
  border:1px solid var(--rule);border-radius:999px;color:var(--ink);
  font-size:.78rem;font-weight:700;letter-spacing:.05em;text-decoration:none;transition:border-color .15s ease;
}
.lang:hover{border-color:var(--ink-soft)}
.theme-btn{
  background:none;border:1px solid var(--rule);color:var(--ink);border-radius:999px;
  width:36px;height:36px;display:grid;place-items:center;cursor:pointer;font-size:1rem;flex:none;
}
.nav ul a[aria-current="page"]{color:var(--ink);font-weight:600;box-shadow:inset 0 -2px 0 var(--raspberry)}
.nav ul a{padding:.35rem 0}
@media (max-width:720px){
  .nav .wrap{height:auto;flex-wrap:wrap;row-gap:0;padding-top:.2rem}
  .nav ul{order:3;width:100%;justify-content:space-between;overflow-x:auto;gap:.4rem;scrollbar-width:none}
  .nav ul a{white-space:nowrap;font-size:.88rem}
}
/* Cibles tactiles de 44 px sur mobile et écrans tactiles */
@media (max-width:720px),(pointer:coarse){
  .brand{min-height:44px}
  .nav ul a{display:inline-flex;align-items:center;min-height:44px;padding:0 .1rem}
  .theme-btn{width:44px;height:44px}
  .lang{min-width:44px;height:44px}
  .filters button{min-height:44px}
}
/* Très petits écrans (320 px) : le nom, le bouton de langue et le thème tiennent sur une ligne,
   et les libellés plus longs de la version anglaise (Background, Projects) restent visibles en entier */
@media (max-width:380px){
  .nav .wrap{gap:.5rem}
  .brand{font-size:.92rem;white-space:nowrap}
  .nav ul{gap:.3rem}
  .nav ul a{font-size:.82rem}
}
.page[hidden]{display:none}
/* Sans JavaScript : toutes les pages s'empilent, rien n'est masqué ni vide */
html:not(.js) .page[hidden]{display:block}
html:not(.js) .topo,html:not(.js) .sbar{display:none}
.noscript{margin:1.5rem 0;padding:1rem 1.25rem;border:1px solid var(--rule);border-radius:10px;background:var(--paper-2);color:var(--ink-soft)}
/* Lien d'évitement : visible uniquement au clavier */
.skip{position:fixed;left:1rem;top:-4rem;z-index:200;padding:.6rem 1rem;border-radius:6px;background:var(--ink);color:var(--paper);font-weight:600;text-decoration:none}
.skip:focus{top:calc(.75rem + env(safe-area-inset-top,0px))}
/* Cibles de focus programmatique (titre de page, contenu) : pas d'anneau, ce ne sont pas des contrôles */
[tabindex="-1"]:focus{outline:none}
.page > section:first-child{border-top:none}
.page-title{padding-top:clamp(2.5rem,6vw,4.5rem)}
/* min(…, 11.5vw) : à 320 px, le mot le plus long (« Background ») doit tenir sur une ligne */
.page-title h1{font-size:min(clamp(2.6rem,6.5vw,4.6rem),11.5vw);line-height:1;margin:0;font-weight:800;font-variation-settings:"wdth" 125;letter-spacing:-.02em}
.page-title .sec-head{grid-template-columns:minmax(0,1fr);align-items:start;row-gap:1rem}
/* Hero */
.hero{
  display:flex;align-items:center;
  min-height:calc(100vh - var(--nav-h));min-height:calc(100svh - var(--nav-h));
  padding:clamp(1.25rem,3svh,2.5rem) 0;
}
.hero .wrap{width:100%}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:clamp(2rem,5vw,4rem);align-items:center}
@media (max-width:900px){
  /* Petit écran : le texte remplit le premier écran, le schéma vient juste dessous */
  .hero{display:block;min-height:0;padding:0}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:0}
  .hero-copy{
    min-height:calc(100vh - var(--nav-h));min-height:calc(100svh - var(--nav-h));
    display:flex;flex-direction:column;justify-content:center;padding:2rem 0;
  }
  .topo{margin-bottom:clamp(2rem,5vw,4rem)}
}
.hero h1{
  font-size:clamp(2.3rem,min(7vw,11svh),5.2rem);line-height:.95;margin:0 0 clamp(.75rem,2.5svh,1.5rem);
  font-weight:800;font-variation-settings:"wdth" 125;letter-spacing:-.025em;
}
.hero h1 span{display:block;font-weight:400;font-variation-settings:"wdth" 75;letter-spacing:0;color:var(--ink-soft);font-size:.42em;line-height:1.2;margin-top:.9rem}
.lede{font-size:clamp(1.1rem,1.6vw,1.3rem);max-width:34ch;margin:0 0 clamp(1rem,3.5svh,2rem);line-height:1.5}
.cta-row{display:flex;flex-wrap:wrap;gap:.75rem}
.btn{
  display:inline-flex;align-items:center;gap:.5rem;padding:.8rem 1.25rem;border-radius:6px;
  font-weight:600;text-decoration:none;border:1.5px solid var(--ink);font-size:.98rem;
  transition:background-color .15s ease,border-color .15s ease,color .15s ease;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:var(--raspberry);border-color:var(--raspberry);color:var(--paper)}
.btn-ghost:hover{background:var(--paper-2)}

/* Topology */
.topo{margin:0;background:var(--paper-2);border:1px solid var(--rule);border-radius:14px;padding:1rem 1rem .5rem}
.topo-head{display:flex;flex-wrap:wrap;justify-content:space-between;gap:.15rem 1rem;margin:0 .25rem .5rem;font-size:.85rem;color:var(--ink-soft)}
.topo-head strong{color:var(--ink);font-weight:600}
.topo svg{display:block;width:100%;height:auto}
/* Disposition verticale quand la carte est étroite : le texte reste lisible */
.topo.tall svg{max-width:360px;margin:0 auto}
.topo.tall .n text{font-size:14.5px}
.topo.tall .n text.sub{font-size:11px}
.n rect{fill:var(--node);stroke:var(--ink);stroke-width:1.25}
.n.broker rect{fill:var(--ink)}
.n.broker text{fill:var(--paper)}
.n text{fill:var(--ink);font-family:"Archivo",sans-serif;font-size:13px;font-weight:600;text-anchor:middle}
.n text.sub{font-weight:400;font-size:10.5px;fill:var(--ink-soft)}
.n.broker text.sub{fill:var(--paper);opacity:.75}
.wire{fill:none;stroke:var(--ink-soft);stroke-width:1.25;stroke-dasharray:3 4}
.pkt{fill:var(--raspberry)}
.pkt.ok{fill:var(--signal)}
.log{
  margin:.6rem .25rem 0;padding:.6rem .75rem;border-top:1px solid var(--rule);
  font-size:.78rem;line-height:1.65;min-height:5em;color:var(--ink-soft);overflow:hidden;
}
.log div{display:flex;gap:.6em;white-space:nowrap}
.log .ts,.log .v{flex:none}
.log .t{color:var(--signal);min-width:0;overflow:hidden;text-overflow:ellipsis}
.log .v{color:var(--ink)}
@media (max-width:480px){.log .ts{display:none}}

/* Sections */
section{padding:clamp(3rem,8vw,6rem) 0;border-top:1px solid var(--rule)}
.sec-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.6fr);gap:clamp(1rem,4vw,3rem);margin-bottom:clamp(2rem,4vw,3rem);align-items:end}
@media (max-width:800px){.sec-head{grid-template-columns:1fr}}
h2{font-size:clamp(2rem,4.5vw,3.2rem);line-height:1;margin:0;font-weight:800;font-variation-settings:"wdth" 118;letter-spacing:-.02em}
.sec-head p{margin:0;color:var(--ink-soft);max-width:56ch}
h3{margin:0;font-variation-settings:"wdth" 110;letter-spacing:-.01em;line-height:1.15}

/* About */
.about-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:clamp(2rem,5vw,4rem)}
@media (max-width:800px){.about-grid{grid-template-columns:1fr}}
.about-grid p{margin:0 0 1.1rem;max-width:62ch}
.facts{margin:0;display:grid;gap:1.1rem;align-content:start}
.facts div{border-left:3px solid var(--raspberry);padding-left:1rem}
.facts dt{font-size:.85rem;color:var(--ink-soft)}
.facts dd{margin:0;font-weight:600}

/* Featured project */
.feature{
  border:1.5px solid var(--ink);border-radius:14px;overflow:hidden;margin-bottom:clamp(2rem,4vw,3rem);
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
}
@media (max-width:900px){.feature{grid-template-columns:1fr}}
.feature-body{padding:clamp(1.5rem,3.5vw,2.75rem)}
.feature-body h3{font-size:clamp(2rem,4vw,2.8rem);font-weight:800;font-variation-settings:"wdth" 125;margin-bottom:.35rem}
.tag{display:inline-block;font-size:.8rem;padding:.2rem .6rem;border-radius:999px;background:var(--raspberry);color:var(--paper);font-weight:600;margin-bottom:1rem}
.feature-body p{margin:0 0 1.25rem;max-width:52ch}
.feature-body .pcard-links{margin-top:1.5rem;padding-top:0}
.feature ul.points{margin:0 0 1.5rem;padding-left:1.1rem}
.feature ul.points li{margin-bottom:.4rem}
.feature-side{background:var(--ink);color:var(--paper);padding:clamp(1.5rem,3.5vw,2.75rem);display:flex;flex-direction:column;gap:1.25rem}
.feature-side h4{margin:0;font-size:1rem;font-variation-settings:"wdth" 110}
.flow{list-style:none;margin:0;padding:0;display:grid;gap:.5rem}
.flow li{display:grid;grid-template-columns:7rem 1fr;gap:.75rem;padding:.55rem 0;border-bottom:1px solid color-mix(in srgb,var(--paper) 18%,transparent);font-size:.95rem}
.flow li b{font-weight:600}
.flow li span{opacity:.78}
@media (max-width:480px){.flow li{grid-template-columns:1fr;gap:.1rem}}
details.learn{border-top:1px solid color-mix(in srgb,var(--paper) 25%,transparent);padding-top:1rem}
details.learn summary{cursor:pointer;font-weight:600}
details.learn ul{margin:.75rem 0 0;padding-left:1.1rem;opacity:.85;font-size:.93rem}
details.learn li{margin-bottom:.45rem}

/* Filters + project list */
.filters{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.5rem}
.filters button{
  font:inherit;font-size:.93rem;padding:.45rem 1rem;border-radius:999px;cursor:pointer;
  border:1.5px solid var(--rule);background:transparent;color:var(--ink);
}
.filters button[aria-pressed="true"]{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.chips{display:flex;flex-wrap:wrap;gap:.4rem;list-style:none;padding:0;margin:0}

/* Autres projets : cartes plus légères que Domo, liens en bas de carte. Deux colonnes dès 720 px :
   avec un nombre pair de cartes, la grille reste équilibrée ; une dernière carte seule occupe toute la largeur. */
.pgrid{display:grid;grid-template-columns:minmax(0,1fr);gap:1rem;list-style:none;margin:0;padding:0}
@media (min-width:720px){.pgrid{grid-template-columns:repeat(2,minmax(0,1fr))}.pgrid > :last-child:nth-child(odd){grid-column:1/-1}}
.pcard{
  background:var(--node);border:1px solid var(--rule);border-radius:14px;
  padding:clamp(1.25rem,2.5vw,1.6rem);display:flex;flex-direction:column;gap:.9rem;
}
.pcard-meta{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.4rem .75rem}
.pcard .tag{margin:0}
.pcard-where{font-size:.78rem;color:var(--signal)}
.pcard-where.off{color:var(--ink-soft)}
.pcard h3{font-size:1.6rem;font-weight:800;font-variation-settings:"wdth" 120}
.pcard p{margin:0}
.pcard ul.points{margin:0;padding-left:1.1rem;font-size:.95rem}
.pcard ul.points li{margin-bottom:.35rem}
.pcard-links{margin-top:auto;padding-top:.4rem;display:flex;flex-wrap:wrap;gap:.5rem;align-items:center}
.pcard-links .btn{padding:.55rem 1rem;font-size:.92rem}
.pcard-note{font-size:.87rem;color:var(--ink-soft)}
.chips li{font-size:.82rem;padding:.2rem .6rem;border:1px solid var(--rule);border-radius:4px;background:var(--paper-2)}

/* Stack */
/* Barre de filtres : reste accrochée sous la nav pendant tout le défilement de la page */
.sbar{
  position:sticky;top:calc(var(--nav-h) - 1px);z-index:9;
  background:color-mix(in srgb,var(--paper) 90%,transparent);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);
}
/* Une seule ligne, défilable si les boutons ne tiennent pas : la barre reste fine */
.sbar .filters{margin:0;padding:.6rem 0;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
.sbar .filters button{flex:none;white-space:nowrap}
@supports selector(::-webkit-scrollbar){.sbar .filters::-webkit-scrollbar{display:none}}
.sgroup{margin-bottom:clamp(2rem,4vw,3rem)}
.sgroup[hidden]{display:none}
.sgroup-head{padding-bottom:.75rem;margin-bottom:1rem;border-bottom:1.5px solid var(--ink)}
.sgroup-head h3{font-size:1.4rem;font-weight:800;font-variation-settings:"wdth" 118}
.sgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:.85rem;list-style:none;margin:0;padding:0}
.tcard{
  position:relative;background:var(--node);border:1px solid var(--rule);border-radius:10px;
  padding:.9rem 1rem 1rem;display:grid;grid-template-columns:40px minmax(0,1fr);gap:.85rem;align-items:start;
}
/* La vignette reste claire dans les deux thèmes : les couleurs de marque y sont toujours lisibles */
.logo{width:40px;height:40px;border-radius:9px;background:#EEF1F4;display:grid;place-items:center}
.logo img{width:24px;height:24px;display:block}
.tcard.key{border-color:var(--ink)}
.tcard.key::after{content:"";position:absolute;top:.8rem;right:.8rem;width:7px;height:7px;border-radius:50%;background:var(--raspberry)}
.tcard b{display:block;font-weight:700;font-variation-settings:"wdth" 108;line-height:1.25;padding-right:.8rem}
.tcard small{display:block;color:var(--ink-soft);font-size:.87rem;line-height:1.4;margin-top:.2rem}
.legend{display:flex;align-items:center;gap:.5rem;font-size:.88rem;color:var(--ink-soft);margin:1.5rem 0 1.5rem}
.legend i{width:7px;height:7px;border-radius:50%;background:var(--raspberry);display:inline-block}

/* Timeline */
.timeline{list-style:none;margin:0;padding:0 0 0 1.75rem;position:relative;max-width:760px}
.timeline::before{content:"";position:absolute;left:5px;top:.5rem;bottom:.5rem;width:2px;background:var(--rule)}
.timeline li{position:relative;padding-bottom:2.25rem}
.timeline li:last-child{padding-bottom:0}
.timeline li::before{content:"";position:absolute;left:-1.75rem;top:.45rem;width:12px;height:12px;border-radius:50%;background:var(--paper);border:2px solid var(--ink)}
.timeline li.now::before{background:var(--raspberry);border-color:var(--raspberry)}
.timeline .when{font-size:.88rem;color:var(--ink-soft)}
.timeline h3{font-size:1.25rem;margin:.15rem 0 .35rem}
.timeline p{margin:0;max-width:60ch}

/* Contact */
.contact{background:var(--ink);color:var(--paper);border-top:none}
.contact h2{font-size:clamp(2.4rem,6vw,4.4rem);font-variation-settings:"wdth" 125;max-width:14ch}
.contact p{color:color-mix(in srgb,var(--paper) 78%,transparent);max-width:52ch;margin:1.25rem 0 2rem}
.contact-links{display:flex;flex-wrap:wrap;gap:.75rem}
.contact .btn{border-color:var(--paper);color:var(--paper)}
.contact .btn-primary{background:var(--paper);color:var(--ink)}
.contact .btn-primary:hover{background:var(--raspberry);border-color:var(--raspberry);color:var(--paper)}
.contact .btn-ghost:hover{background:color-mix(in srgb,var(--paper) 12%,transparent)}
footer{background:var(--ink);color:color-mix(in srgb,var(--paper) 60%,transparent);font-size:.85rem;padding:1.5rem 0 calc(2rem + env(safe-area-inset-bottom,0px));border-top:1px solid color-mix(in srgb,var(--paper) 15%,transparent)}

/* Splash : le trajet d'un message MQTT, comme sur l'accueil.
   Entièrement piloté par CSS, donc il se ferme seul même si le script échoue. */
#splash{display:none}
.has-splash #splash{
  position:fixed;inset:0;z-index:100;display:grid;place-items:center;background:var(--paper);
  animation:sp-out .4s ease 1.5s forwards;
}
#splash.skip{animation:sp-skip .2s ease forwards}
.sp-inner{width:min(340px,calc(100vw - 3rem))}
.sp-brand{
  display:flex;align-items:center;gap:.6rem;font-weight:800;font-variation-settings:"wdth" 125;
  font-size:clamp(1.6rem,7vw,2.4rem);letter-spacing:-.02em;line-height:1;
  opacity:0;animation:sp-in .35s ease .05s forwards;
}
.sp-brand .brand-dot{width:.5em;height:.5em;flex:none}
.sp-wire{position:relative;height:0;margin:1.75rem 0 1.1rem;border-top:1.25px dashed var(--ink-soft);opacity:0;animation:sp-in .3s ease .15s forwards}
.sp-pkt{
  position:absolute;top:-5.5px;left:0;width:10px;height:10px;margin-left:-5px;border-radius:50%;background:var(--raspberry);
  animation:sp-run .7s cubic-bezier(.45,0,.2,1) .35s forwards,sp-ok .01s linear .7s forwards;
}
.sp-log{display:flex;gap:.6em;font-size:.8rem;color:var(--ink-soft);opacity:0;animation:sp-in .3s ease 1.05s forwards}
.sp-log .t{color:var(--signal)}
@keyframes sp-in{to{opacity:1}}
@keyframes sp-run{to{left:100%}}
@keyframes sp-ok{to{background:var(--signal)}}
@keyframes sp-out{to{opacity:0;visibility:hidden}}
@keyframes sp-skip{to{opacity:0;visibility:hidden}}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:.5rem}
footer a{color:inherit;text-underline-offset:3px;transition:color .15s ease}
footer a:hover{color:var(--paper)}

/* Révélation au défilement : les blocs apparaissent en douceur, un peu à la fois */
.js .reveal{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.16,.8,.3,1),transform .7s cubic-bezier(.16,.8,.3,1)}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){.js .reveal{opacity:1;transform:none;transition:none}}