/* Kosmium — feuille de style du site
   Concept : l'atelier et le bureau d'études. Pages blanches de plan technique,
   sections sombres anthracite comme l'acier, un seul accent cuivre (celui du K).
   Une seule apparence assumée (le logo exige un fond clair). */
:root {
  --paper: #FBFAF8;      /* blanc de plan, légèrement chaud */
  --white: #FFFFFF;
  --ink: #2E353E;        /* anthracite du logo */
  --ink-2: #3F4751;
  --steel: #1E2329;      /* sections sombres */
  --steel-2: #262C33;
  --slate: #616A71;      /* texte secondaire */
  --mist: #9AA2A9;       /* texte secondaire sur fond sombre */
  --line: #E3E0DB;
  --line-dark: rgba(255,255,255,.12);
  --copper: #B5613C;     /* accent unique */
  --copper-lt: #D58965;  /* accent sur fond sombre */
  --copper-tint: #F6ECE5;

  --f-display: "Montserrat", "Avenir Next", "Helvetica Neue", Arial, sans-serif;
  --f-body: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --wrap: 1200px;
  --gutter: clamp(16px, 4vw, 40px);
  --radius: 4px;
  --header-h: 72px;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 8px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--f-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--copper); outline-offset: 3px; }

.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }

/* ---------- Typographie ---------- */
h1, h2, h3, h4 { font-family: var(--f-display); font-weight: 700; letter-spacing: -0.02em; line-height: 1.08; margin: 0; text-wrap: balance; }
h1 { font-size: clamp(2.6rem, 6.2vw, 5.4rem); letter-spacing: -0.035em; }
h2 { font-size: clamp(2rem, 4.2vw, 3.4rem); letter-spacing: -0.03em; }
h3 { font-size: clamp(1.35rem, 2vw, 1.7rem); }
p { margin: 0; }
.lead { font-size: clamp(1.1rem, 1.5vw, 1.3rem); line-height: 1.55; color: var(--slate); max-width: 60ch; }
.label {
  font-family: var(--f-mono); font-size: .78rem; font-weight: 500; letter-spacing: .14em;
  text-transform: uppercase; color: var(--copper);
  display: inline-flex; align-items: center; gap: .7em;
}
.label::before { content: ""; width: 22px; height: 1px; background: currentColor; }
.mono { font-family: var(--f-mono); }
.copper { color: var(--copper); }

/* ---------- Boutons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .6em;
  font-family: var(--f-body); font-weight: 600; font-size: .98rem;
  padding: .95em 1.5em; border-radius: var(--radius); text-decoration: none;
  border: 1px solid transparent; cursor: pointer; transition: background .2s, color .2s, border-color .2s, transform .2s;
}
.btn svg { width: 16px; height: 16px; transition: transform .2s; }
.btn:hover svg { transform: translateX(3px); }
.btn-copper { background: var(--copper); color: #fff; }
.btn-copper:hover { background: #9E5232; }
.btn-ghost { border-color: rgba(255,255,255,.35); color: #fff; }
.btn-ghost:hover { border-color: #fff; background: rgba(255,255,255,.06); }
.btn-ink { background: var(--ink); color: #fff; }
.btn-ink:hover { background: var(--steel); }
.link-arrow { font-weight: 600; text-decoration: none; color: var(--copper); display: inline-flex; gap: .5em; align-items: center; }
.link-arrow:hover { text-decoration: underline; text-underline-offset: 4px; }

/* ---------- En-tête ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  padding-top: env(safe-area-inset-top, 0px);
  background: rgba(251,250,248,.86);
  backdrop-filter: saturate(1.4) blur(14px); -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid transparent; transition: border-color .3s, background .3s;
}
.site-header.scrolled { border-bottom-color: var(--line); background: rgba(251,250,248,.94); }
.site-header .wrap { height: var(--header-h); display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; flex-shrink: 0; }
.brand img { height: 38px; width: auto; }
.nav { display: flex; align-items: center; gap: clamp(14px, 2.2vw, 32px); }
.nav a { text-decoration: none; font-size: .93rem; font-weight: 500; color: var(--ink-2); }
.nav a:hover { color: var(--copper); }
.nav .btn { padding: .7em 1.15em; font-size: .9rem; color: #fff; }
.nav-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; color: var(--ink); }
.nav-toggle svg { width: 26px; height: 26px; }
@media (max-width: 960px) {
  .nav { position: fixed; inset: calc(var(--header-h) + env(safe-area-inset-top, 0px)) 0 auto 0; flex-direction: column; align-items: stretch; gap: 0;
         background: var(--paper); border-bottom: 1px solid var(--line); padding: 8px var(--gutter) 20px; display: none; }
  .nav.open { display: flex; }
  .nav a { padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 1.05rem; }
  .nav .btn { margin-top: 16px; justify-content: center; border-bottom: 0; }
  .nav-toggle { display: block; }
  .brand img { height: 32px; }
}

/* ---------- Sections ---------- */
section { position: relative; }
.sec { padding-block: clamp(80px, 11vw, 150px); }
.sec-head { display: grid; gap: 22px; max-width: 820px; margin-bottom: clamp(48px, 6vw, 80px); }
.dark { background: var(--steel); color: #fff; }
.dark .lead { color: var(--mist); }
.dark .label { color: var(--copper-lt); }

/* ---------- Héro ---------- */
.hero {
  min-height: min(92vh, 860px); display: flex; align-items: flex-end;
  color: #fff; background: var(--steel); overflow: hidden;
  padding-top: calc(var(--header-h) + env(safe-area-inset-top, 0px));
}
.hero-media { position: absolute; inset: 0; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: 60% 50%; transform: scale(1.04); animation: heroIn 2.4s cubic-bezier(.2,.7,.2,1) both; }
.hero-media::after { content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(20,24,29,.92) 0%, rgba(20,24,29,.72) 42%, rgba(20,24,29,.18) 75%, rgba(20,24,29,.05) 100%),
              linear-gradient(0deg, rgba(20,24,29,.85) 0%, rgba(20,24,29,0) 45%); }
@keyframes heroIn { from { transform: scale(1.12); opacity: .4; } to { transform: scale(1.04); opacity: 1; } }
.hero .wrap { position: relative; width: 100%; padding-block: clamp(56px, 9vw, 110px); }
.hero h1 { max-width: 15ch; }
.hero h1 em { font-style: normal; color: var(--copper-lt); }
.hero .lead { color: rgba(255,255,255,.78); margin-top: 28px; max-width: 54ch; }
.hero .label { color: var(--copper-lt); margin-bottom: 26px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 40px; }
.hero-foot { display: flex; flex-wrap: wrap; gap: 10px 36px; margin-top: clamp(48px, 7vw, 88px); padding-top: 22px; border-top: 1px solid rgba(255,255,255,.16);
  font-family: var(--f-mono); font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; color: rgba(255,255,255,.62); }
.hero-foot span { display: inline-flex; align-items: center; gap: 10px; }
.hero-foot span::before { content: ""; width: 6px; height: 6px; background: var(--copper-lt); transform: rotate(45deg); }

/* ---------- Constat ---------- */
.constat-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(40px, 6vw, 96px); align-items: center; }
.constat-grid > * { min-width: 0; }
.silos { position: relative; aspect-ratio: 1 / 1; max-width: 460px; width: 100%; justify-self: center; }
.silos svg { width: 100%; height: 100%; overflow: visible; }
.silos .node rect { fill: var(--white); stroke: var(--line); }
.silos .node text { font-family: var(--f-mono); font-size: 13px; fill: var(--ink); letter-spacing: .06em; }
.silos .node .sub { font-size: 10px; fill: var(--slate); letter-spacing: .04em; }
.silos .gap-line { stroke: var(--line); stroke-dasharray: 3 6; stroke-width: 1.5; }
.silos .live-line { stroke: var(--copper); stroke-width: 1.5; stroke-dasharray: 260; stroke-dashoffset: 260; transition: stroke-dashoffset 1.6s ease; }
.silos.on .live-line { stroke-dashoffset: 0; }
.silos .core circle { fill: var(--copper-tint); stroke: var(--copper); }
.silos .core text { font-family: var(--f-mono); font-size: 11px; fill: var(--copper); letter-spacing: .1em; }
.stat {
  margin-top: 48px; display: grid; grid-template-columns: auto auto 1fr; gap: 28px; align-items: end;
  padding-top: 32px; border-top: 1px solid var(--line);
}
.stat .num { font-family: var(--f-display); font-weight: 700; font-size: clamp(3rem, 6vw, 4.6rem); line-height: .9; letter-spacing: -0.04em; }
.stat .num small { display: block; font-family: var(--f-body); font-weight: 500; font-size: .85rem; letter-spacing: 0; color: var(--slate); margin-top: 10px; line-height: 1.35; max-width: 16ch; }
.stat .num.c { color: var(--copper); }
.stat .src { font-size: .82rem; color: var(--slate); align-self: end; max-width: 28ch; }
.stat .src cite { font-style: italic; }

/* ---------- Enjeux ---------- */
.enjeux { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.enjeu { padding: 40px 36px 44px 0; display: grid; gap: 16px; align-content: start; }
.enjeu + .enjeu { padding-left: 36px; border-left: 1px solid var(--line); }
.enjeu .k { font-family: var(--f-mono); font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; color: var(--slate); }
.enjeu h3 { font-size: clamp(1.5rem, 2.4vw, 2rem); }
.enjeu p { color: var(--slate); }
.enjeux-note { margin-top: 28px; color: var(--slate); font-size: 1.05rem; max-width: 70ch; }
.enjeu .metier { margin-top: 8px; display: inline-flex; align-items: center; gap: 10px; font-weight: 600; font-size: .95rem; }
.enjeu .metier::before { content: "→"; color: var(--copper); }

/* ---------- Agents ---------- */
.agent { display: grid; grid-template-columns: 1fr 1fr; gap: 0; min-height: 560px; background: var(--white); border: 1px solid var(--line); }
.agent + .agent { margin-top: 28px; }
.agent > * { min-width: 0; }
.agent-media { position: relative; overflow: hidden; background: var(--steel-2); min-height: 320px; }
.agent-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s cubic-bezier(.2,.7,.2,1); }
.agent:hover .agent-media img { transform: scale(1.04); }
.agent-media .tag { position: absolute; left: 24px; bottom: 22px; color: #fff; font-family: var(--f-mono); font-size: .75rem; letter-spacing: .14em; text-transform: uppercase;
  background: rgba(20,24,29,.6); backdrop-filter: blur(6px); padding: 8px 12px; border-radius: 2px; }
.agent.rev .agent-media { order: 2; }
.agent-body { padding: clamp(32px, 4.5vw, 64px); display: grid; gap: 22px; align-content: center; }
.agent-name { display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap; }
.agent-name h3 { font-size: clamp(2.2rem, 4vw, 3.2rem); letter-spacing: -0.035em; }
.agent-name .role { font-family: var(--f-mono); font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; color: var(--copper); }
.agent-body > p { color: var(--slate); font-size: 1.05rem; max-width: 46ch; }
.agent-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; padding-top: 22px; border-top: 1px solid var(--line); }
.agent-cols h4 { font-family: var(--f-mono); font-weight: 500; font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; color: var(--slate); margin-bottom: 12px; }
.agent-cols ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; font-size: .96rem; }
.agent-cols li { display: grid; grid-template-columns: 14px 1fr; gap: 10px; }
.agent-cols li::before { content: ""; width: 6px; height: 6px; margin-top: .62em; background: var(--copper); transform: rotate(45deg); }
.agent-cols .detect li::before { background: transparent; border: 1px solid var(--ink); }

/* ---------- Missions des agents ---------- */
.agent-missions { padding-top: 22px; border-top: 1px solid var(--line); }
.agent-missions h4 { font-family: var(--f-mono); font-weight: 500; font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; color: var(--slate); margin-bottom: 14px; }
.agent-missions ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; counter-reset: m; }
.agent-missions li { display: grid; grid-template-columns: 26px 1fr; column-gap: 12px; row-gap: 2px; counter-increment: m; }
.agent-missions li::before { content: counter(m); grid-row: span 2; font-family: var(--f-display); font-weight: 700; color: var(--copper); font-size: 1.15rem; line-height: 1.3; }
.agent-missions strong { font-family: var(--f-display); font-weight: 600; font-size: 1rem; }
.agent-missions span { color: var(--slate); font-size: .93rem; line-height: 1.5; }
.agent-missions li.more { counter-increment: none; }
.agent-missions li.more::before { content: "+"; }
.agent-missions li.more strong { color: var(--slate); font-weight: 600; }
.agent-detect { font-size: .9rem; color: var(--ink-2); }
.agent-detect span { font-family: var(--f-mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--copper); margin-right: 10px; }

/* ---------- Ignis en action ---------- */
.flow-intro { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 96px); align-items: end; margin-bottom: clamp(48px, 6vw, 80px); }
.flow-intro > * { min-width: 0; }
.flow-note { margin-top: clamp(48px, 6vw, 72px); display: flex; flex-wrap: wrap; gap: 18px 40px; align-items: center; justify-content: space-between; padding-top: 28px; border-top: 1px solid var(--line-dark); }
.flow-note p { color: #fff; font-size: 1.12rem; max-width: 60ch; }
.flow-note p strong { color: var(--copper-lt); font-weight: 600; }

/* ---------- Concertation des agents ---------- */
.conc { display: grid; grid-template-columns: .75fr 1.25fr; gap: clamp(32px, 5vw, 72px); align-items: start; }
.conc > * { min-width: 0; }
.conc-side { position: sticky; top: calc(var(--header-h) + 32px); display: grid; gap: 28px; }
.req { background: var(--paper); color: var(--ink); padding: 24px 26px 26px; border-left: 3px solid var(--copper); display: grid; gap: 8px; }
.req-k { font: 500 .72rem var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--copper); }
.req-from { font-family: var(--f-display); font-weight: 700; font-size: 1.15rem; }
.req-txt { color: var(--ink-2); font-size: 1rem; }
.conc-legend { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.conc-legend li { display: flex; align-items: center; gap: 12px; color: var(--mist); font-size: .95rem; }
.conc-legend strong { color: #fff; font-weight: 600; }
.conc-note { font-size: .82rem; color: var(--mist); max-width: 34ch; }
.av { flex: 0 0 auto; width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; font: 700 .95rem var(--f-display); color: #fff; }
.av-i { background: var(--copper); }
.av-a { background: var(--copper-lt); color: var(--steel); }
.av-t { background: #8A939B; color: var(--steel); }
.av-h { background: transparent; border: 1px solid rgba(255,255,255,.5); }
.av-h svg { width: 18px; height: 18px; stroke: #fff; }
.talk { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }
.msg { display: grid; grid-template-columns: 36px 1fr; gap: 14px; align-items: start; transition: opacity .6s ease, transform .6s cubic-bezier(.2,.7,.2,1); }
.msg > div { background: var(--steel-2); border: 1px solid var(--line-dark); border-radius: 2px 16px 16px 16px; padding: 14px 18px 16px; min-width: 0; }
.msg .who { display: block; font-family: var(--f-display); font-weight: 600; font-size: .95rem; margin-bottom: 6px; }
.msg .who em { font: 500 .7rem var(--f-mono); font-style: normal; letter-spacing: .1em; text-transform: uppercase; color: var(--copper-lt); margin-left: 8px; }
.msg p { color: rgba(255,255,255,.82); font-size: .98rem; line-height: 1.55; }
.msg-human > div { background: transparent; border-color: var(--copper-lt); }
.js .talk.wait .msg:not(.in) { opacity: 0; transform: translateY(14px); }
.outcome { margin-top: clamp(48px, 6vw, 80px); padding-top: 32px; border-top: 1px solid var(--line-dark); }
.outcome .fl { color: var(--copper-lt); }
.outcome-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 8px; }
.outcome-grid div { display: grid; gap: 8px; }
.outcome-grid strong { font-family: var(--f-display); font-weight: 600; font-size: 1.15rem; }
.outcome-grid span { color: var(--mist); font-size: .96rem; }
.outcome .flow-note { margin-top: 40px; }

/* ---------- Souveraineté ---------- */
.sov { overflow: hidden; }
.sov-bg { position: absolute; inset: 0; }
.sov-bg img { width: 100%; height: 100%; object-fit: cover; opacity: .32; }
.sov-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(30,35,41,.7), rgba(30,35,41,.96)); }
.sov .wrap { position: relative; }
.sov-options { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line-dark); border: 1px solid var(--line-dark); }
.sov-opt { background: rgba(30,35,41,.88); padding: 36px 32px 40px; display: grid; gap: 14px; align-content: start; }
.sov-opt .k { font-family: var(--f-mono); font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; color: var(--copper-lt); }
.sov-opt h3 { font-size: 1.45rem; }
.sov-opt p { color: var(--mist); font-size: .97rem; }
.sov-opt.reco { background: rgba(38,44,51,.95); }
.guarantees { margin-top: 44px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.guarantees div { display: grid; gap: 8px; padding-top: 18px; border-top: 1px solid var(--copper-lt); }
.guarantees strong { font-family: var(--f-display); font-weight: 600; font-size: 1.02rem; }
.guarantees span { color: var(--mist); font-size: .92rem; line-height: 1.5; }

.compliance { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
.compliance span { font: 500 .78rem var(--f-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--copper-lt); border: 1px solid rgba(213,137,101,.5); padding: 8px 14px; border-radius: 2px; }

/* ---------- Méthode ---------- */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; border-top: 1px solid var(--ink); }
.step { padding: 28px 24px 8px 0; display: grid; gap: 14px; align-content: start; }
.step + .step { padding-left: 24px; border-left: 1px solid var(--line); }
.step .n { font-family: var(--f-display); font-weight: 700; font-size: 3rem; line-height: 1; color: var(--copper); letter-spacing: -0.04em; }
.step h3 { font-size: 1.25rem; }
.step p { color: var(--slate); font-size: .95rem; }
.step .who { font-family: var(--f-mono); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); padding-top: 10px; }

/* ---------- Composer ---------- */
.compose { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(40px, 6vw, 96px); align-items: center; }
.compose > * { min-width: 0; }
.picker { background: var(--white); border: 1px solid var(--line); padding: clamp(24px, 3.5vw, 44px); display: grid; gap: 22px; }
.picker-row { display: flex; flex-wrap: wrap; gap: 10px; }
.chip { border: 1px solid var(--line); background: var(--paper); padding: 12px 18px; border-radius: 999px; font: 600 .95rem var(--f-body); color: var(--ink); cursor: pointer; display: inline-flex; gap: 10px; align-items: center; transition: all .2s; }
.chip .r { font: 500 .72rem var(--f-mono); letter-spacing: .08em; color: var(--slate); text-transform: uppercase; }
.chip[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: #fff; }
.chip[aria-pressed="true"] .r { color: var(--copper-lt); }
.picker-out { border-top: 1px solid var(--line); padding-top: 22px; display: grid; gap: 10px; }
.picker-out .lbl { font-family: var(--f-mono); font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; color: var(--slate); }
.picker-out .val { font-family: var(--f-display); font-weight: 700; font-size: clamp(1.4rem, 2.4vw, 1.9rem); letter-spacing: -0.02em; line-height: 1.2; }
.picker-out p { color: var(--slate); font-size: .96rem; }
.picker small { color: var(--slate); font-size: .85rem; }

/* ---------- Engagements ---------- */
.prv-hero { overflow: hidden; }
.prv-media { position: absolute; inset: 0; }
.prv-media img { width: 100%; height: 100%; object-fit: cover; }
.prv-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(20,24,29,.9) 0%, rgba(20,24,29,.65) 55%, rgba(20,24,29,.35) 100%); }
.prv-hero .wrap { position: relative; }
.quote { font-family: var(--f-display); font-weight: 600; font-size: clamp(1.6rem, 3.2vw, 2.6rem); line-height: 1.2; letter-spacing: -0.025em; max-width: 26ch; text-wrap: balance; }
.prv { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line-dark); margin-top: clamp(48px, 6vw, 80px); border: 1px solid var(--line-dark); }
.prv > div { background: rgba(30,35,41,.78); backdrop-filter: blur(6px); padding: 34px 30px 38px; display: grid; gap: 12px; align-content: start; }
.prv .letter { font-family: var(--f-display); font-weight: 700; font-size: 3.4rem; line-height: .9; color: var(--copper-lt); }
.prv h3 { font-size: 1.4rem; }
.prv p { color: rgba(255,255,255,.72); font-size: .97rem; }
.refuse { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(40px, 6vw, 96px); align-items: start; }
.refuse > * { min-width: 0; }
.refuse ul { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--ink); }
.refuse li { display: grid; grid-template-columns: 34px 1fr; gap: 14px; padding: 18px 0; border-bottom: 1px solid var(--line); font-size: 1.02rem; }
.refuse li svg { width: 20px; height: 20px; stroke: var(--copper); margin-top: 3px; }

/* ---------- Fondateurs ---------- */
.founders { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(24px, 4vw, 56px); }
.founder { display: grid; grid-template-columns: minmax(150px, 220px) 1fr; gap: clamp(20px, 3vw, 36px); align-items: end; }
.founder > * { min-width: 0; }
.founder img { aspect-ratio: 4 / 5; width: 100%; object-fit: cover; }
.founder .role { font-family: var(--f-mono); font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; color: var(--copper); margin-bottom: 10px; }
.founder h3 { font-size: 1.7rem; margin-bottom: 14px; }
.founder p { color: var(--slate); font-size: .98rem; }
.founder a { display: inline-block; margin-top: 16px; font-size: .9rem; }
.founders-quote { margin-top: clamp(56px, 7vw, 96px); padding-top: 40px; border-top: 1px solid var(--line); display: grid; grid-template-columns: 60px 1fr; gap: 24px; }
.founders-quote img { width: 48px; height: auto; }
.founders-quote blockquote { margin: 0; font-family: var(--f-display); font-weight: 600; font-size: clamp(1.35rem, 2.6vw, 2.1rem); line-height: 1.25; letter-spacing: -0.02em; max-width: 34ch; }

/* ---------- FAQ ---------- */
.faq { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(40px, 6vw, 96px); }
.faq > * { min-width: 0; }
.faq-list { border-top: 1px solid var(--ink); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; padding: 24px 40px 24px 0; position: relative; font-family: var(--f-display); font-weight: 600; font-size: 1.12rem; letter-spacing: -0.01em; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; position: absolute; right: 6px; top: 50%; width: 12px; height: 12px; border-right: 1.5px solid var(--copper); border-bottom: 1.5px solid var(--copper); transform: translateY(-70%) rotate(45deg); transition: transform .25s; }
.faq details[open] summary::after { transform: translateY(-30%) rotate(-135deg); }
.faq details p { padding: 0 40px 26px 0; color: var(--slate); }

/* ---------- Diagnostic ---------- */
.diag { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(40px, 6vw, 96px); align-items: start; }
.diag > * { min-width: 0; }
.diag-points { list-style: none; padding: 0; margin: 36px 0 0; display: grid; gap: 18px; }
.diag-points li { display: grid; grid-template-columns: 72px 1fr; gap: 14px; padding-top: 16px; border-top: 1px solid var(--line-dark); }
.diag-points .mono { color: var(--copper-lt); font-size: .82rem; letter-spacing: .06em; }
.diag-points span:last-child { color: rgba(255,255,255,.8); }
.direct { margin-top: 36px; display: grid; gap: 6px; font-size: .95rem; color: var(--mist); }
.direct a { color: #fff; font-weight: 600; text-decoration: none; border-bottom: 1px solid var(--copper-lt); justify-self: start; }
form.card { background: var(--paper); color: var(--ink); padding: clamp(24px, 3.5vw, 44px); display: grid; gap: 22px; border-radius: 2px; }
fieldset { border: 0; padding: 0; margin: 0; display: grid; gap: 10px; min-width: 0; }
legend, .fl { font-family: var(--f-mono); font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; color: var(--slate); margin-bottom: 10px; padding: 0; }
.radios { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.radios label { position: relative; border: 1px solid var(--line); background: var(--white); padding: 14px 14px 16px; cursor: pointer; display: grid; gap: 4px; transition: border-color .2s, box-shadow .2s; }
.radios input { position: absolute; opacity: 0; pointer-events: none; }
.radios label strong { font-family: var(--f-display); font-size: 1rem; }
.radios label span { font-size: .82rem; color: var(--slate); line-height: 1.35; }
.radios label:has(input:checked) { border-color: var(--copper); box-shadow: inset 0 0 0 1px var(--copper); }
.radios label:has(input:focus-visible) { outline: 2px solid var(--copper); outline-offset: 2px; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.row2 > * { min-width: 0; }
.field { display: grid; gap: 8px; }
.field label { font-size: .88rem; font-weight: 600; }
.field input, .field select, .field textarea {
  width: 100%; font: 400 1rem var(--f-body); color: var(--ink); background: var(--white);
  border: 1px solid var(--line); border-radius: 2px; padding: 13px 14px; transition: border-color .2s;
}
.field textarea { min-height: 96px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--copper); }
.form-foot { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between; }
.form-foot small { color: var(--slate); font-size: .82rem; max-width: 40ch; }
.form-msg { padding: 16px 18px; font-size: .95rem; border-left: 3px solid var(--copper); background: var(--copper-tint); }
.hp { position: absolute; left: -9999px; }

/* ---------- Pied de page ---------- */
.site-footer { background: var(--white); border-top: 1px solid var(--line); padding-block: 56px 40px; font-size: .92rem; }
.foot-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr; gap: 32px; }
.foot-grid > * { min-width: 0; }
.foot-grid h4 { font-family: var(--f-mono); font-weight: 500; font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--slate); margin-bottom: 14px; }
.foot-grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.foot-grid a { text-decoration: none; color: var(--ink-2); }
.foot-grid a:hover { color: var(--copper); }
.foot-brand { display: grid; gap: 16px; align-content: start; }
.foot-brand img { width: 44px; }
.foot-brand p { color: var(--slate); max-width: 34ch; }
.foot-bottom { margin-top: 48px; padding-top: 22px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 12px 28px; justify-content: space-between; color: var(--slate); font-size: .84rem; }

/* ---------- Pages intérieures ---------- */
.page-head { padding-top: calc(var(--header-h) + env(safe-area-inset-top, 0px) + clamp(56px, 8vw, 110px)); padding-bottom: clamp(48px, 6vw, 80px); border-bottom: 1px solid var(--line); }
.page-head h1 { font-size: clamp(2.4rem, 5vw, 4.2rem); max-width: 18ch; margin-top: 22px; }
.page-head .lead { margin-top: 26px; }
.prose { max-width: 760px; }
.prose h2 { font-size: clamp(1.6rem, 2.8vw, 2.2rem); margin: 64px 0 20px; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 1.2rem; margin: 32px 0 10px; }
.prose p, .prose li { color: var(--ink-2); }
.prose p + p { margin-top: 14px; }
.prose ul, .prose ol { padding-left: 1.2em; display: grid; gap: 8px; margin: 14px 0; }
.prose blockquote { margin: 28px 0; padding: 4px 0 4px 24px; border-left: 2px solid var(--copper); font-family: var(--f-display); font-weight: 600; font-size: 1.3rem; line-height: 1.35; letter-spacing: -0.015em; }
.table-wrap { overflow-x: auto; margin: 18px 0 8px; }
.prose table { width: 100%; border-collapse: collapse; font-size: .95rem; min-width: 520px; }
.prose th { text-align: left; font-family: var(--f-mono); font-weight: 500; font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--slate); padding: 10px 14px 10px 0; border-bottom: 1px solid var(--ink); }
.prose td { padding: 14px 14px 14px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.prose td:first-child { font-weight: 600; width: 30%; }
.toc { position: sticky; top: calc(var(--header-h) + 32px); display: grid; gap: 10px; font-size: .92rem; }
.toc a { text-decoration: none; color: var(--slate); }
.toc a:hover { color: var(--copper); }
.with-toc { display: grid; grid-template-columns: 220px 1fr; gap: clamp(32px, 6vw, 96px); align-items: start; }
.with-toc > * { min-width: 0; }
.central { margin: 22px 0 8px; padding: 20px 22px; background: var(--copper-tint); }
.central strong { display: block; font-family: var(--f-mono); font-weight: 500; font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--copper); margin-bottom: 6px; }
.placeholder { background: var(--copper-tint); padding: 0 .3em; font-family: var(--f-mono); font-size: .9em; }

/* ---------- Apparition au défilement (état de repos visible) ---------- */
.reveal { transition: opacity .9s ease, transform .9s cubic-bezier(.2,.7,.2,1); }
.js .reveal.pre { opacity: 0; transform: translateY(28px); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
  .js .reveal.pre { opacity: 1; transform: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .steps { grid-template-columns: repeat(3, 1fr); row-gap: 28px; }
  .step:nth-child(4) { padding-left: 0; border-left: 0; }
  .guarantees { grid-template-columns: repeat(2, 1fr); }
  .founder { grid-template-columns: 1fr; align-items: start; }
  .founder img { max-width: 260px; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .conc { grid-template-columns: 1fr; }
  .conc-side { position: static; }
  .outcome-grid { grid-template-columns: 1fr; }
  .constat-grid, .flow-intro, .compose, .refuse, .faq, .diag, .with-toc { grid-template-columns: 1fr; }
  .toc { position: static; display: none; }
  .silos { max-width: 360px; }
  .enjeux { grid-template-columns: 1fr; }
  .enjeu, .enjeu + .enjeu { padding: 30px 0; border-left: 0; }
  .enjeu + .enjeu { border-top: 1px solid var(--line); }
  .agent, .agent.rev { grid-template-columns: 1fr; min-height: 0; }
  .agent.rev .agent-media { order: 0; }
  .agent-media { aspect-ratio: 16 / 10; min-height: 0; }
  .sov-options, .prv { grid-template-columns: 1fr; }
  .founders { grid-template-columns: 1fr; gap: 56px; }
  .founder { grid-template-columns: 160px 1fr; align-items: end; }
  .stat { grid-template-columns: 1fr 1fr; }
  .stat .src { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .steps { grid-template-columns: 1fr; }
  .step, .step + .step { padding: 22px 0; border-left: 0; border-bottom: 1px solid var(--line); }
  .agent-cols, .row2, .radios { grid-template-columns: 1fr; }
  .guarantees { grid-template-columns: 1fr; }
  .founder { grid-template-columns: 1fr; }
  .founder img { max-width: 220px; }
  .foot-grid { grid-template-columns: 1fr; }
  .founders-quote { grid-template-columns: 1fr; }
  .hero { min-height: 0; }
}

/* ---------- Repli si une photo manque : trame de plan technique ---------- */
.agent-media { background-color: var(--steel-2);
  background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 32px 32px; }
.agent-media::before { content: attr(data-letter); position: absolute; right: 6%; top: 50%; transform: translateY(-55%);
  font-family: var(--f-display); font-weight: 700; font-size: clamp(9rem, 18vw, 16rem); line-height: 1; color: transparent; -webkit-text-stroke: 1px rgba(213,137,101,.45); }

/* Héro : décaler le soudeur vers la droite, hors du titre, sur grand écran */
@media (min-width: 861px) {
  .hero-media img { width: 142%; max-width: none; object-position: 50% 45%; transform-origin: 30% 50%; }
}

#ignis .agent-media img { object-position: 54% 50%; }

/* ---------- Liens vers les démonstrations ---------- */
.agent-demo { justify-self: start; display: inline-flex; align-items: center; gap: 10px; font-family: var(--f-display); font-weight: 600; font-size: .98rem; color: var(--copper); text-decoration: none; border-bottom: 1px solid currentColor; padding-bottom: 2px; }
.agent-demo span { transition: transform .2s; }
.agent-demo:hover { color: #9E5232; }
.agent-demo:hover span { transform: translateX(4px); }
.conc-note a { color: var(--copper-lt); }

/* ---------- v12 : offre en 3 étapes ---------- */
.offer { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--ink); }
.offer-step { position: relative; padding: 34px clamp(24px, 3vw, 40px) 8px 0; display: flex; flex-direction: column; gap: 14px; }
.offer-step + .offer-step { padding-left: clamp(24px, 3vw, 40px); border-left: 1px solid var(--line); }
.offer-step:not(:last-child)::after { content: "→"; position: absolute; right: -15px; top: 40px; z-index: 1; width: 30px; height: 30px; border-radius: 50%;
  display: grid; place-items: center; background: var(--paper); border: 1px solid var(--line); color: var(--copper); font-size: .9rem; }
.offer-step .n { font-family: var(--f-display); font-weight: 700; font-size: 3rem; line-height: 1; letter-spacing: -0.04em; color: var(--copper); }
.offer-step .meta { font: 500 .74rem var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--slate); }
.offer-step h3 { font-size: clamp(1.5rem, 2.3vw, 1.9rem); }
.offer-step > p { color: var(--slate); }
.offer-step .get { margin-top: 4px; padding: 16px 18px; background: var(--copper-tint); font-size: .96rem; line-height: 1.5; flex: 1 0 auto; }
.offer-step .get span { display: block; font: 500 .7rem var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--copper); margin-bottom: 6px; }
.offer-step .link-arrow { margin-top: 6px; }

/* ---------- v12 : cartes agents ---------- */
.acards { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(16px, 2vw, 28px); }
.acard { background: var(--paper); border: 1px solid var(--line); display: flex; flex-direction: column; min-width: 0; }
.acard-media { position: relative; display: block; aspect-ratio: 4 / 3; overflow: hidden; background-color: var(--steel-2);
  background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px); background-size: 32px 32px; }
.acard-media::before { content: attr(data-letter); position: absolute; right: 8%; top: 50%; transform: translateY(-55%); font: 700 8rem/1 var(--f-display); color: transparent; -webkit-text-stroke: 1px rgba(213,137,101,.45); }
.acard-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s cubic-bezier(.2,.7,.2,1); }
.acard:hover .acard-media img { transform: scale(1.04); }
.acard-media .tag { position: absolute; left: 20px; bottom: 18px; color: #fff; font: 500 .72rem var(--f-mono); letter-spacing: .14em; text-transform: uppercase; text-shadow: 0 1px 8px rgba(0,0,0,.5); }
.acard-body { padding: clamp(24px, 2.6vw, 34px); display: flex; flex-direction: column; gap: 16px; flex: 1; }
.acard .agent-name h3 { font-size: clamp(1.9rem, 2.8vw, 2.4rem); }
.acard .agent-name .role { font-size: .72rem; }
.acard-body > p { color: var(--slate); font-size: .98rem; }
.acard ul { list-style: none; margin: 0; padding: 16px 0 0; border-top: 1px solid var(--line); display: grid; gap: 8px; font-family: var(--f-display); font-weight: 600; font-size: .95rem; }
.acard li { display: grid; grid-template-columns: 14px 1fr; gap: 8px; }
.acard li::before { content: ""; width: 6px; height: 6px; margin-top: .55em; background: var(--copper); transform: rotate(45deg); }
.acard-links { margin-top: auto; padding-top: 8px; display: flex; flex-wrap: wrap; gap: 12px 20px; align-items: center; justify-content: space-between; }
.demo-link { font: 500 .74rem var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-2); text-decoration: none; border: 1px solid var(--line); padding: 7px 12px; border-radius: 999px; display: inline-flex; align-items: center; gap: 8px; }
.demo-link::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--copper); }
.demo-link:hover { border-color: var(--copper); color: var(--copper); }
.acards-foot { margin-top: clamp(36px, 4vw, 56px); padding-top: 28px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 18px 40px; align-items: center; justify-content: space-between; }
.acards-foot p { font-size: 1.1rem; color: var(--slate); max-width: 62ch; }
.acards-foot p strong { color: var(--ink); font-weight: 600; }

/* ---------- v12 : une IA maîtrisée ---------- */
.mastery .k { font: 500 .74rem var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--copper-lt); }
.mastery h3 { font-size: 1.35rem; }
.mastery a { color: var(--copper-lt); }
.link-arrow.light { color: var(--copper-lt); margin-top: 4px; }

/* ---------- v12 : navigation, page agents ---------- */
.nav-demo { display: inline-flex; align-items: center; gap: 8px; }
.nav-demo::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--copper); box-shadow: 0 0 0 0 rgba(181,97,60,.5); animation: pulse 2.4s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(181,97,60,.45); } 70% { box-shadow: 0 0 0 8px rgba(181,97,60,0); } 100% { box-shadow: 0 0 0 0 rgba(181,97,60,0); } }
.btn-line { border-color: var(--ink); color: var(--ink); }
.btn-line:hover { background: var(--ink); color: #fff; }
.compose-note { margin-top: clamp(36px, 4vw, 56px); padding-top: 28px; border-top: 1px solid var(--line); font-size: 1.1rem; color: var(--slate); max-width: 70ch; }
.compose-note strong { color: var(--ink); font-weight: 600; }
.cta-band { display: flex; flex-wrap: wrap; gap: 28px 48px; align-items: end; justify-content: space-between; }
.cta-band h2 { max-width: 22ch; }

@media (max-width: 960px) {
  .acards { grid-template-columns: 1fr; max-width: 640px; }
  .acard { display: grid; grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
  .offer { grid-template-columns: 1fr; }
  .offer-step, .offer-step + .offer-step { padding: 28px 0 32px; border-left: 0; }
  .offer-step + .offer-step { border-top: 1px solid var(--line); }
  .offer-step:not(:last-child)::after { content: "↓"; right: auto; left: 50%; top: auto; bottom: -15px; transform: translateX(-50%); }
}