/* ==========================================================================
   C Si Facile — feuille de style
   Charte : #000413 encre · #575756 graphite · #E40046 framboise
            #92979C acier · #F2F2F2 brume · #4F4E54 ardoise · police Exo 2
   Motifs : l'arc du « C » (bouton ON), le pixel carré du « i » (voyant).
   ========================================================================== */

@font-face { font-family: "Exo 2"; src: url("../fonts/exo2-light.woff2") format("woff2"); font-weight: 300; font-display: swap; }
@font-face { font-family: "Exo 2"; src: url("../fonts/exo2-regular.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Exo 2"; src: url("../fonts/exo2-medium.woff2") format("woff2"); font-weight: 500; font-display: swap; }
@font-face { font-family: "Exo 2"; src: url("../fonts/exo2-semibold.woff2") format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Exo 2"; src: url("../fonts/exo2-bold.woff2") format("woff2"); font-weight: 700; font-display: swap; }
@font-face { font-family: "Exo 2"; src: url("../fonts/exo2-extrabold.woff2") format("woff2"); font-weight: 800; font-display: swap; }

:root {
  --ink: #000413;
  --graphite: #575756;
  --red: #E40046;
  --red-deep: #B80038;
  --steel: #92979C;
  --mist: #F2F2F2;
  --slate: #4F4E54;
  --paper: #FFFFFF;
  --line: rgba(0, 4, 19, .12);
  --line-strong: rgba(0, 4, 19, .22);
  --text: #23242b;
  --muted: #5d5e66;

  --font: "Exo 2", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --step--1: clamp(.84rem, .82rem + .1vw, .9rem);
  --step-0: clamp(1rem, .97rem + .15vw, 1.09rem);
  --step-1: clamp(1.18rem, 1.1rem + .35vw, 1.38rem);
  --step-2: clamp(1.45rem, 1.3rem + .7vw, 1.9rem);
  --step-3: clamp(1.9rem, 1.6rem + 1.4vw, 2.85rem);
  --step-4: clamp(2.1rem, 1.6rem + 2.4vw, 3.6rem);
  --step-5: clamp(2.7rem, 1.7rem + 4.6vw, 5.8rem);

  --gutter: clamp(16px, 4vw, 40px);
  --section: clamp(72px, 10vw, 140px);
  --radius: 4px;
  --ease: cubic-bezier(.2, .7, .2, 1);
  --header-h: 72px;

  --logo-ink: var(--ink);
  --logo-arc: var(--graphite);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }
body {
  margin: 0;
  font-family: var(--font);
  font-size: var(--step-0);
  line-height: 1.65;
  color: var(--text);
  background: var(--paper);
  font-feature-settings: "lnum", "kern";
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: .2em; }
a:hover { color: var(--red); }
:focus-visible { outline: 2px solid var(--red); outline-offset: 3px; }
h1, h2, h3, h4 { font-weight: 800; line-height: 1.05; color: var(--ink); margin: 0 0 .5em; letter-spacing: -.02em; text-wrap: balance; }
h2 { font-size: var(--step-4); }
h3 { font-size: var(--step-2); letter-spacing: -.01em; line-height: 1.15; }
p { margin: 0 0 1em; text-wrap: pretty; }
ul { padding: 0; margin: 0; list-style: none; }
strong { color: var(--ink); font-weight: 700; }
em { font-style: normal; color: var(--red); }

.wrap { width: 100%; max-width: 1280px; margin-inline: auto; padding-inline: var(--gutter); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 100; background: var(--ink); color: #fff; padding: 10px 16px; }
.skip:focus { top: 12px; }

/* ---------- Atomes de marque ---------- */
.px { display: inline-block; width: .2em; height: .2em; background: var(--red); margin-left: .06em; vertical-align: baseline; }
.led { display: inline-block; width: 8px; height: 8px; background: var(--red); flex: none; animation: blink 2.4s steps(1) infinite; box-shadow: 0 0 0 0 rgba(228, 0, 70, .5); }
@keyframes blink { 0%, 72% { opacity: 1; } 78% { opacity: .25; } 84%, 100% { opacity: 1; } }

.label {
  display: inline-flex; align-items: center; gap: .6em;
  font-size: var(--step--1); font-weight: 700; text-transform: uppercase; letter-spacing: .16em;
  color: var(--red); margin: 0 0 1.2rem;
}
.label::before { content: ""; width: 7px; height: 7px; background: currentColor; }
.label--muted { color: var(--graphite); }
.lead { font-size: var(--step-1); line-height: 1.55; color: var(--slate); max-width: 40em; }

.btn {
  --bg: var(--red); --fg: #fff;
  display: inline-flex; align-items: center; gap: .7em;
  padding: .95em 1.4em; border: 1.5px solid var(--bg);
  background: var(--bg); color: var(--fg);
  font: 700 var(--step--1)/1 var(--font); letter-spacing: .06em; text-transform: uppercase; text-decoration: none;
  position: relative; transition: background .25s var(--ease), color .25s var(--ease), transform .25s var(--ease);
  cursor: pointer;
}
.btn::after { content: "→"; font-weight: 500; transition: transform .25s var(--ease); }
.btn:hover { color: var(--fg); transform: translateY(-2px); }
.btn:hover::after { transform: translateX(4px); }
.btn--ink { --bg: var(--ink); }
.btn--ink:hover { --bg: var(--red); }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn--ghost:hover { color: var(--ink); border-color: var(--ink); }
.btn--light { --bg: #fff; --fg: var(--ink); }
.btn--light:hover { --bg: var(--red); --fg: #fff; }
.btn .led { animation: none; background: var(--red); }
.btn--ink:hover .led { background: #fff; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

.link-arrow { font-weight: 700; text-decoration: none; display: inline-flex; gap: .5em; align-items: center; color: var(--ink); border-bottom: 1.5px solid var(--red); padding-bottom: 2px; }
.link-arrow::after { content: "→"; transition: transform .25s var(--ease); }
.link-arrow:hover::after { transform: translateX(4px); }

/* ---------- En-tête ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50; height: var(--header-h);
  background: rgba(255, 255, 255, .86); backdrop-filter: saturate(1.6) blur(14px); -webkit-backdrop-filter: saturate(1.6) blur(14px);
  border-bottom: 1px solid transparent; transition: border-color .3s;
}
.site-header.is-scrolled { border-bottom-color: var(--line); }
.site-header__inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.site-header__brand { display: block; width: 138px; flex: none; }
.logo { width: 100%; height: auto; overflow: visible; }
.lg-ink { fill: var(--logo-ink); }
.lg-arc { fill: var(--logo-arc); }
.lg-red { fill: var(--red); }
.site-header__brand:hover [data-pixel] { animation: blink .8s steps(1) 2; }

.nav__list { display: flex; align-items: center; gap: clamp(16px, 2.4vw, 36px); }
.nav__list > li > a:not(.btn) { font-weight: 600; text-decoration: none; color: var(--ink); padding: 8px 0; position: relative; }
.nav__list > li > a:not(.btn)::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 2px; height: 2px; background: var(--red); transition: right .3s var(--ease); }
.nav__list > li > a:not(.btn):hover::after, .nav__list > li > a[aria-current]::after { right: 0; }
.nav__cta .btn { padding: .8em 1.1em; }
.nav__cta .btn::after { content: none; }
.nav__group { position: relative; }
.nav__sub {
  position: absolute; top: calc(100% + 14px); left: -24px; min-width: 300px;
  background: #fff; border: 1px solid var(--line); box-shadow: 0 24px 48px -24px rgba(0, 4, 19, .3);
  padding: 8px; opacity: 0; visibility: hidden; transform: translateY(-6px); transition: .25s var(--ease);
}
.nav__sub::before { content: ""; position: absolute; inset: -16px 0 auto; height: 16px; }
.nav__group:hover .nav__sub, .nav__group:focus-within .nav__sub { opacity: 1; visibility: visible; transform: none; }
.nav__sub a { display: grid; padding: 12px 16px; text-decoration: none; border-left: 2px solid transparent; }
.nav__sub a:hover { background: var(--mist); border-left-color: var(--red); color: var(--ink); }
.nav__sub b { color: var(--ink); }
.nav__sub span { font-size: var(--step--1); color: var(--muted); }

.burger { display: none; }

@media (max-width: 900px) {
  .burger {
    display: grid; place-content: center; gap: 6px; width: 46px; height: 46px; border: 1px solid var(--line-strong);
    background: #fff; cursor: pointer; padding: 0;
  }
  .burger i { display: block; width: 20px; height: 2px; background: var(--ink); transition: transform .3s var(--ease); }
  .burger[aria-expanded="true"] i:first-of-type { transform: translateY(4px) rotate(45deg); }
  .burger[aria-expanded="true"] i:last-of-type { transform: translateY(-4px) rotate(-45deg); }
  .nav {
    position: fixed; inset: var(--header-h) 0 0; background: #fff; padding: 24px var(--gutter) 40px; overflow-y: auto;
    transform: translateX(100%); transition: transform .4s var(--ease); visibility: hidden;
  }
  .nav.is-open { transform: none; visibility: visible; }
  .nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav__list > li { border-bottom: 1px solid var(--line); }
  .nav__list > li > a:not(.btn) { display: block; padding: 18px 0; font-size: var(--step-2); font-weight: 800; }
  .nav__list > li > a:not(.btn)::after { display: none; }
  .nav__sub { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: 0; padding: 0 0 16px; min-width: 0; }
  .nav__cta { border: 0 !important; padding-top: 24px; }
  .nav__cta .btn { width: 100%; justify-content: center; padding: 1.2em; }
  body.menu-open { overflow: hidden; }
}

/* ---------- Sections génériques ---------- */
.section { padding-block: var(--section); position: relative; }
.section--mist { background: var(--mist); }
.section--ink { background: var(--ink); color: #c9ccd2; --logo-ink: #fff; }
.section--ink h2, .section--ink h3, .section--ink strong { color: #fff; }
.section--ink .lead { color: #b5b9c0; }
.section-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .8fr); gap: 24px 64px; align-items: end; margin-bottom: clamp(40px, 6vw, 80px); }
.section-head h2 { margin: 0; }
.section-head .lead { margin: 0; }
@media (max-width: 860px) { .section-head { grid-template-columns: 1fr; } }

/* ---------- Hero accueil ---------- */
.hero { position: relative; padding-block: clamp(40px, 6vw, 80px) clamp(56px, 8vw, 110px); overflow: hidden; }
.hero__grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: clamp(32px, 5vw, 80px); align-items: center; }
.hero h1 { font-size: var(--step-5); line-height: .98; letter-spacing: -.035em; margin-bottom: .45em; }
.hero h1 .line { display: block; }
.hero h1 .strike { position: relative; color: var(--steel); font-weight: 300; }
.hero h1 .strike::after {
  content: ""; position: absolute; left: -2%; right: -2%; top: 54%; height: .09em; background: var(--red);
  transform-origin: left; transform: scaleX(0); animation: strike 0.7s .9s var(--ease) forwards;
}
@keyframes strike { to { transform: scaleX(1); } }
.hero .lead { margin-bottom: 2em; }
.hero__meta { display: grid; grid-template-columns: repeat(3, auto); justify-content: start; gap: 0; margin-top: clamp(40px, 6vw, 72px); border-top: 1px solid var(--line); }
.hero__meta div { padding: 18px 32px 0 0; margin-right: 32px; border-right: 1px solid var(--line); }
.hero__meta div:last-child { border-right: 0; }
.hero__meta b { display: block; font-size: var(--step-3); font-weight: 800; color: var(--ink); line-height: 1; letter-spacing: -.02em; }
.hero__meta span { font-size: var(--step--1); color: var(--muted); }

.power { position: relative; aspect-ratio: 1; width: 100%; max-width: 560px; justify-self: end; }
.power__ring { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.power__ring .arc { fill: none; stroke: var(--steel); stroke-width: 7; stroke-linecap: butt; stroke-dasharray: 1; stroke-dashoffset: 1; animation: draw 1.6s .2s var(--ease) forwards; }
.power__ring .arc--thin { stroke: var(--line-strong); stroke-width: 1; animation-delay: .5s; }
@keyframes draw { to { stroke-dashoffset: 0; } }
.power__photo { position: absolute; inset: 11%; border-radius: 50%; overflow: hidden; background: var(--mist); }
.power__photo img { width: 100%; height: 100%; object-fit: cover; object-position: 55% 50%; transform: scale(1.04); animation: settle 1.4s var(--ease) forwards; }
@keyframes settle { to { transform: none; } }
.power__i { position: absolute; right: 2.5%; top: 37%; width: 5%; height: 27%; }
.power__i::before { content: ""; position: absolute; left: 0; right: 0; top: 30%; bottom: 0; background: var(--red); }
.power__i::after { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 18%; background: var(--red); animation: blink 2.4s 2s steps(1) infinite; }
.power__tag {
  position: absolute; left: -2%; bottom: 8%; background: #fff; border: 1px solid var(--line);
  padding: 12px 16px; display: flex; gap: 10px; align-items: center; font-size: var(--step--1); font-weight: 600; color: var(--ink);
  box-shadow: 0 18px 40px -22px rgba(0, 4, 19, .35);
}
.power__tag small { display: block; color: var(--muted); font-weight: 400; }

@media (max-width: 860px) {
  .hero__grid { grid-template-columns: minmax(0, 1fr); }
  .power { max-width: 400px; justify-self: center; order: -1; width: 82%; }
  .hero__meta { grid-template-columns: repeat(3, 1fr); }
  .hero__meta div { padding-right: 12px; margin-right: 12px; }
}

/* ---------- Bande « jargon » ---------- */
.jargon { background: var(--ink); color: var(--steel); overflow: hidden; padding-block: 22px; border-block: 1px solid #1a1d2b; }
.jargon__track { display: flex; gap: 48px; width: max-content; animation: marquee 48s linear infinite; }
.jargon:hover .jargon__track { animation-play-state: paused; }
.jargon__track span { font-size: var(--step-2); font-weight: 300; white-space: nowrap; position: relative; display: inline-flex; align-items: center; gap: 48px; }
.jargon__track span::after { content: ""; width: 8px; height: 8px; background: var(--red); }
.jargon__track s { text-decoration-color: var(--red); text-decoration-thickness: 2px; }
.jargon__track b { color: #fff; font-weight: 800; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- Constat ---------- */
.symptoms { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.symptom { padding: 32px 32px 8px 0; border-right: 1px solid var(--line); margin-right: 32px; }
.symptom:last-child { border-right: 0; margin-right: 0; }
.symptom__n { font-size: var(--step--1); font-weight: 700; color: var(--red); letter-spacing: .1em; }
.symptom h3 { margin-top: 12px; }
.symptom p { color: var(--muted); }
@media (max-width: 860px) {
  .symptoms { grid-template-columns: 1fr; }
  .symptom { border-right: 0; margin-right: 0; border-bottom: 1px solid var(--line); padding-right: 0; }
}

/* ---------- Traducteur ---------- */
.translator { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); border: 1px solid var(--line-strong); background: #fff; }
.translator__list { padding: 12px; border-right: 1px solid var(--line-strong); }
.translator__list p { padding: 12px 16px 4px; margin: 0; }
.tr-q {
  width: 100%; text-align: left; display: grid; grid-template-columns: auto 1fr; gap: 14px; align-items: baseline;
  padding: 16px; border: 0; background: none; font: 500 var(--step-0)/1.45 var(--font); color: var(--slate); cursor: pointer;
  border-left: 2px solid transparent; transition: background .2s, color .2s, border-color .2s;
}
.tr-q::before { content: attr(data-n); font-size: var(--step--1); font-weight: 700; color: var(--steel); letter-spacing: .08em; }
.tr-q:hover { background: var(--mist); color: var(--ink); }
.tr-q[aria-pressed="true"] { background: var(--mist); color: var(--ink); border-left-color: var(--red); }
.tr-q[aria-pressed="true"]::before { color: var(--red); }
.translator__out { background: var(--ink); color: #fff; padding: clamp(28px, 4vw, 56px); display: flex; flex-direction: column; min-height: 420px; position: relative; overflow: hidden; }
.translator__out::after {
  content: ""; position: absolute; width: 380px; height: 380px; right: -190px; bottom: -190px; border-radius: 50%;
  border: 6px solid #1c2030;
}
.translator__switch { display: flex; align-items: center; gap: 12px; font-size: var(--step--1); font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--steel); margin-bottom: auto; }
.translator__switch i { width: 44px; height: 22px; border: 1.5px solid var(--steel); position: relative; }
.translator__switch i::after { content: ""; position: absolute; top: 3px; left: 3px; width: 13px; height: 13px; background: var(--steel); transition: transform .35s var(--ease), background .35s; }
.translator__out.is-on .translator__switch i { border-color: var(--red); }
.translator__out.is-on .translator__switch i::after { transform: translateX(22px); background: var(--red); }
.translator__out.is-on .translator__switch b { color: #fff; }
.translator__src { color: var(--steel); font-size: var(--step-0); margin: 40px 0 16px; text-decoration: line-through; text-decoration-color: var(--red); }
.translator__text { font-size: var(--step-2); line-height: 1.35; font-weight: 600; color: #fff; min-height: 6.5em; position: relative; z-index: 1; margin: 0; }
.translator__text .caret { display: inline-block; width: .5em; height: .9em; background: var(--red); vertical-align: -.08em; margin-left: 4px; animation: blink 1s steps(1) infinite; }
@media (max-width: 860px) {
  .translator { grid-template-columns: 1fr; }
  .translator__list { border-right: 0; border-bottom: 1px solid var(--line-strong); }
  .translator__out { min-height: 360px; }
}

/* ---------- Offres ---------- */
.circuit { position: relative; height: 2px; background: var(--line-strong); margin-bottom: 56px; }
.circuit__fill { position: absolute; inset: 0 auto 0 0; width: 0; background: var(--red); transition: width 1.6s var(--ease); }
.is-in .circuit__fill { width: 100%; }
.circuit__node { position: absolute; top: -7px; width: 16px; height: 16px; background: #fff; border: 2px solid var(--steel); transition: background .3s, border-color .3s; }
.circuit__node:nth-child(2) { left: 0; transition-delay: .1s; }
.circuit__node:nth-child(3) { left: calc(33.333% + 10px); transition-delay: .6s; }
.circuit__node:nth-child(4) { left: calc(66.666% + 21px); transition-delay: 1.1s; }
.is-in .circuit__node { background: var(--red); border-color: var(--red); }

.offers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.offer {
  position: relative; display: flex; flex-direction: column; padding: 36px 32px 32px; background: #fff;
  border: 1px solid var(--line); overflow: hidden; text-decoration: none; color: inherit;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s;
}
.offer:hover { transform: translateY(-6px); box-shadow: 0 30px 60px -30px rgba(0, 4, 19, .35); border-color: var(--ink); color: inherit; }
.offer__ribbon {
  position: absolute; top: 22px; right: -46px; width: 180px; transform: rotate(40deg);
  background: var(--red); color: #fff; text-align: center; font-size: 10.5px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; padding: 5px 0;
}
.offer__n { font-size: var(--step-4); font-weight: 200; color: var(--steel); line-height: 1; margin-bottom: 28px; font-feature-settings: "tnum"; }
.offer__name { font-size: var(--step--1); font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--red); margin-bottom: 8px; }
.offer h3 { font-size: var(--step-2); margin-bottom: 16px; }
.offer > p { color: var(--muted); }
.offer ul { margin: 8px 0 28px; display: grid; gap: 10px; }
.offer li { padding-left: 22px; position: relative; font-size: var(--step--1); line-height: 1.5; color: var(--slate); }
.offer li::before { content: ""; position: absolute; left: 0; top: .55em; width: 7px; height: 7px; background: var(--red); }
.offer .link-arrow { margin-top: auto; align-self: flex-start; }
@media (max-width: 960px) {
  .offers { grid-template-columns: 1fr; }
  .circuit { display: none; }
}

/* ---------- Comprendre le SI ---------- */
.basics { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(40px, 6vw, 96px); align-items: start; }
.definition { margin: 0; position: sticky; top: calc(var(--header-h) + 32px); }
.definition blockquote { margin: 0; font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2.2rem); font-weight: 300; line-height: 1.2; color: var(--ink); letter-spacing: -.015em; }
.definition blockquote strong { font-weight: 800; }
.definition figcaption { margin-top: 20px; color: var(--muted); font-size: var(--step--1); }
.components { display: grid; gap: 16px; }
.component { display: grid; grid-template-columns: 64px 1fr; gap: 24px; padding: 28px; background: #fff; border: 1px solid var(--line); }
.component svg { width: 64px; height: 64px; stroke: var(--ink); fill: none; stroke-width: 2.4; }
.component svg .r { fill: var(--red); stroke: none; }
.component h3 { margin-bottom: 6px; font-size: var(--step-1); }
.component p { margin: 0; color: var(--muted); }
.purpose { margin-top: 16px; padding: 28px; background: var(--ink); color: #c9ccd2; }
.purpose strong { color: #fff; }
@media (max-width: 860px) { .basics { grid-template-columns: 1fr; } .definition { position: static; } }

/* DSI architecte */
.architect { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 6vw, 96px); align-items: center; }
.checklist { display: grid; gap: 0; border-top: 1px solid var(--line); }
.checklist li { display: grid; grid-template-columns: 28px 1fr; gap: 12px; padding: 16px 0; border-bottom: 1px solid var(--line); color: var(--slate); }
.checklist li::before { content: ""; width: 9px; height: 9px; background: var(--red); margin-top: .55em; }
.section--ink .checklist, .section--ink .checklist li { border-color: #1f2333; color: #c9ccd2; }
@media (max-width: 860px) { .architect { grid-template-columns: 1fr; } }

/* ---------- Médias / photos ---------- */
.frame { position: relative; overflow: hidden; background: var(--mist); }
.frame img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease); }
.frame:hover img { transform: scale(1.03); }
.frame--arc { border-radius: 0 999px 999px 0; }
.frame--round { border-radius: 50%; aspect-ratio: 1; }
.frame--tall { aspect-ratio: 4 / 5; }
.frame--wide { aspect-ratio: 3 / 2; }
.frame__deco { position: absolute; inset: auto -12% -18% auto; width: 60%; aspect-ratio: 1; border-radius: 50%; border: 2px solid rgba(255, 255, 255, .7); pointer-events: none; }

/* ---------- Bloc IA (teaser) ---------- */
.ia-teaser { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 6vw, 96px); align-items: center; }
.ia-teaser .frame { aspect-ratio: 4 / 5; max-height: 640px; border-radius: 999px 999px 0 0; }
.ia-steps { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: #1f2333; border: 1px solid #1f2333; margin: 32px 0; }
.ia-steps div { background: var(--ink); padding: 20px; }
.ia-steps b { display: block; color: #fff; font-size: var(--step-1); }
.ia-steps span { font-size: var(--step--1); }
@media (max-width: 860px) { .ia-teaser { grid-template-columns: 1fr; } .ia-teaser .frame { max-height: 420px; } }

/* ---------- Bertrand ---------- */
.founder { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(32px, 6vw, 96px); align-items: center; }
.founder .frame { aspect-ratio: 4 / 5; border-radius: 0 0 999px 0; }
.quote { font-size: var(--step-2); font-weight: 400; line-height: 1.4; color: var(--ink); margin: 0 0 32px; padding-left: 28px; border-left: 3px solid var(--red); }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); margin: 40px 0 32px; }
.stat { padding: 20px 16px 0 0; }
.stat b { display: block; font-size: var(--step-4); font-weight: 800; line-height: 1; color: var(--ink); letter-spacing: -.03em; font-feature-settings: "tnum"; }
.stat b sup { font-size: .45em; color: var(--red); vertical-align: top; margin-left: 2px; }
.stat span { font-size: var(--step--1); color: var(--muted); line-height: 1.35; display: block; margin-top: 8px; }
@media (max-width: 860px) {
  .founder { grid-template-columns: 1fr; }
  .founder .frame { max-width: 420px; }
  .stats { grid-template-columns: repeat(2, 1fr); row-gap: 24px; }
}

/* ---------- Valeurs ---------- */
.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border: 1px solid var(--line); background: #fff; }
.value { padding: clamp(28px, 4vw, 48px); border-right: 1px solid var(--line); position: relative; }
.value:last-child { border-right: 0; }
.value__icon { width: 56px; height: 56px; border-radius: 50%; display: grid; place-items: center; margin-bottom: 28px; }
.value__icon svg { width: 28px; height: 28px; fill: none; stroke: #fff; stroke-width: 1.6; }
.value:nth-child(1) .value__icon { background: var(--ink); }
.value:nth-child(2) .value__icon { background: var(--graphite); }
.value:nth-child(3) .value__icon { background: var(--red); }
.value p { color: var(--muted); margin: 0; }
@media (max-width: 860px) { .values { grid-template-columns: 1fr; } .value { border-right: 0; border-bottom: 1px solid var(--line); } }

/* ---------- Diagnostic express ---------- */
.diag { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); gap: 0; border: 1px solid var(--line-strong); background: #fff; }
.diag__q { padding: clamp(20px, 3vw, 40px); }
.diag__q fieldset { border: 0; margin: 0; padding: 0; }
.diag__q legend { font-weight: 700; color: var(--ink); margin-bottom: 16px; padding: 0; }
.switch { display: grid; grid-template-columns: 1fr auto; gap: 20px; align-items: center; padding: 14px 0; border-bottom: 1px solid var(--line); cursor: pointer; color: var(--slate); line-height: 1.45; }
.switch:last-child { border-bottom: 0; }
.switch input { appearance: none; -webkit-appearance: none; margin: 0; width: 46px; height: 24px; border: 1.5px solid var(--steel); position: relative; cursor: pointer; flex: none; transition: border-color .25s; }
.switch input::after { content: ""; position: absolute; top: 3px; left: 3px; width: 15px; height: 15px; background: var(--steel); transition: transform .3s var(--ease), background .3s; }
.switch input:checked { border-color: var(--red); }
.switch input:checked::after { transform: translateX(22px); background: var(--red); }
.switch:has(input:checked) { color: var(--ink); }
.diag__r { background: var(--ink); color: #c9ccd2; padding: clamp(24px, 3vw, 40px); display: flex; flex-direction: column; gap: 16px; }
.diag__r h3 { color: #fff; font-size: var(--step-1); margin: 0; }
.meters { display: grid; gap: 14px; margin: 8px 0; }
.meter { display: grid; grid-template-columns: 12px 1fr auto; gap: 12px; align-items: center; font-size: var(--step--1); }
.meter i { width: 10px; height: 10px; background: #2a2f42; transition: background .3s, box-shadow .3s; }
.meter.is-lit i { background: var(--red); box-shadow: 0 0 14px rgba(228, 0, 70, .8); }
.meter b { color: #fff; font-weight: 600; }
.meter span { font-feature-settings: "tnum"; color: var(--steel); }
.meter__bar { grid-column: 2 / 4; height: 3px; background: #1f2333; margin-top: -6px; }
.meter__bar s { display: block; height: 100%; width: 0; background: var(--red); transition: width .5s var(--ease); text-decoration: none; }
.diag__verdict { color: #fff; font-size: var(--step-0); line-height: 1.5; min-height: 4.5em; margin: 0; }
.diag__verdict a { color: #fff; }
.diag__r .btn { margin-top: auto; justify-content: center; }
.diag__r .btn[aria-disabled="true"] { opacity: .45; pointer-events: none; }
@media (max-width: 860px) { .diag { grid-template-columns: 1fr; } }

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--line-strong); }
.faq__item { border-bottom: 1px solid var(--line-strong); }
.faq__item summary { list-style: none; cursor: pointer; display: grid; grid-template-columns: 1fr 24px; gap: 24px; align-items: center; padding: 24px 0; font-size: var(--step-1); font-weight: 700; color: var(--ink); }
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary:hover { color: var(--red); }
.faq__item summary i { width: 24px; height: 24px; position: relative; }
.faq__item summary i::before, .faq__item summary i::after { content: ""; position: absolute; left: 4px; right: 4px; top: 11px; height: 2px; background: var(--red); transition: transform .3s var(--ease); }
.faq__item summary i::after { transform: rotate(90deg); }
.faq__item[open] summary i::after { transform: rotate(0); }
.faq__item p { color: var(--muted); max-width: 52em; padding-bottom: 24px; margin: 0; }
.faq-layout { display: grid; grid-template-columns: minmax(0, .7fr) minmax(0, 1.3fr); gap: clamp(32px, 6vw, 96px); }
@media (max-width: 860px) { .faq-layout { grid-template-columns: 1fr; } }

/* ---------- Appel à l'action ---------- */
.cta { background: var(--red); color: #fff; padding-block: clamp(64px, 9vw, 120px); position: relative; overflow: hidden; }
.cta::before, .cta::after { content: ""; position: absolute; border-radius: 50%; border: 2px solid rgba(255, 255, 255, .35); }
.cta::before { width: 640px; height: 640px; right: -180px; top: -260px; }
.cta::after { width: 900px; height: 900px; right: -320px; top: -390px; border-color: rgba(255, 255, 255, .18); }
.cta .wrap { position: relative; z-index: 1; }
.cta h2 { color: #fff; max-width: 14em; }
.cta p { font-size: var(--step-1); max-width: 36em; color: rgba(255, 255, 255, .9); }
.cta .label { color: #fff; }
.cta__links { display: flex; flex-wrap: wrap; gap: 12px 40px; margin-top: 40px; align-items: center; }
.cta__links a:not(.btn) { color: #fff; font-size: var(--step-1); font-weight: 700; text-decoration: none; border-bottom: 1.5px solid rgba(255, 255, 255, .5); }
.cta__links a:not(.btn):hover { border-bottom-color: #fff; }

/* ---------- Pages intérieures ---------- */
.crumbs ol { display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 0 0 32px; list-style: none; font-size: var(--step--1); color: var(--muted); }
.crumbs li + li::before { content: "/"; margin-right: 8px; color: var(--steel); }
.crumbs a { text-decoration: none; }
.phero { padding-block: clamp(32px, 5vw, 64px) clamp(56px, 8vw, 100px); position: relative; overflow: hidden; }
.phero__grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: clamp(32px, 6vw, 96px); align-items: center; }
.phero h1 { font-size: var(--step-5); line-height: 1; letter-spacing: -.035em; }
.phero h1 small { display: block; font-size: .36em; font-weight: 600; color: var(--steel); letter-spacing: 0; margin-bottom: .5em; }
.phero .frame { aspect-ratio: 1; border-radius: 999px 999px 0 0; }
.phero .frame img { object-position: 50% 22%; }
.phero__ribbon { position: absolute; top: 34px; right: -64px; width: 260px; transform: rotate(40deg); background: var(--red); color: #fff; text-align: center; font-size: 12px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; padding: 7px 0; z-index: 2; }
@media (max-width: 860px) {
  .phero__grid { grid-template-columns: minmax(0, 1fr); }
  .phero .frame { max-width: 380px; aspect-ratio: 1; }
  .phero__ribbon { display: none; }
}

.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 6vw, 96px); align-items: center; }
.split--top { align-items: start; }
.prose { max-width: 40em; }
.prose h2 { font-size: var(--step-3); }
.prose h3 { font-size: var(--step-1); margin-top: 1.8em; }
.prose ul { display: grid; gap: 10px; margin: 0 0 1.4em; }
.prose li { padding-left: 22px; position: relative; }
.prose li::before { content: ""; position: absolute; left: 0; top: .6em; width: 7px; height: 7px; background: var(--red); }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; } }

.signals { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.signal { display: flex; gap: 16px; padding: 20px 24px; background: #fff; border: 1px solid var(--line); color: var(--slate); line-height: 1.5; }
.signal::before { content: ""; width: 9px; height: 9px; background: var(--red); flex: none; margin-top: .5em; }
@media (max-width: 700px) { .signals { grid-template-columns: 1fr; } }

.steps { display: grid; grid-template-columns: repeat(4, 1fr); counter-reset: step; border-top: 2px solid var(--ink); }
.steps--3 { grid-template-columns: repeat(3, 1fr); }
.step { padding: 28px 28px 0 0; position: relative; counter-increment: step; }
.step::before { content: ""; position: absolute; top: -8px; left: 0; width: 14px; height: 14px; background: var(--red); }
.step::after { content: "0" counter(step); display: block; font-size: var(--step-3); font-weight: 200; color: var(--steel); line-height: 1; margin-bottom: 18px; order: -1; }
.step h3 { font-size: var(--step-1); }
.step p { color: var(--muted); font-size: var(--step--1); line-height: 1.6; }
.step { display: flex; flex-direction: column; }
.section--ink .steps { border-top-color: #fff; }
.section--ink .step p { color: #a9adb6; }
@media (max-width: 860px) { .steps, .steps--3 { grid-template-columns: 1fr 1fr; row-gap: 40px; } }
@media (max-width: 520px) { .steps, .steps--3 { grid-template-columns: 1fr; } }

.deliverables { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.deliverable { background: #fff; padding: 28px; }
.deliverable b { display: block; color: var(--ink); font-size: var(--step-1); margin-bottom: 8px; line-height: 1.25; }
.deliverable span { color: var(--muted); font-size: var(--step--1); line-height: 1.6; display: block; }
@media (max-width: 860px) { .deliverables { grid-template-columns: 1fr; } }

.related { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.related a { display: grid; gap: 4px; padding: 28px; border: 1px solid var(--line-strong); text-decoration: none; background: #fff; transition: border-color .25s, transform .25s var(--ease); }
.related a:hover { border-color: var(--ink); transform: translateY(-3px); color: inherit; }
.related small { color: var(--red); font-weight: 700; letter-spacing: .14em; text-transform: uppercase; font-size: 11px; }
.related b { color: var(--ink); font-size: var(--step-2); line-height: 1.1; }
.related span { color: var(--muted); }
@media (max-width: 700px) { .related { grid-template-columns: 1fr; } }

/* Timeline (à propos) */
.timeline { border-left: 2px solid var(--line-strong); margin-left: 6px; }
.timeline li { position: relative; padding: 0 0 36px 32px; }
.timeline li::before { content: ""; position: absolute; left: -8px; top: 6px; width: 14px; height: 14px; background: #fff; border: 2px solid var(--red); }
.timeline li:last-child::before { background: var(--red); }
.timeline b { display: block; font-size: var(--step-1); color: var(--ink); }
.timeline small { font-weight: 700; color: var(--red); letter-spacing: .12em; text-transform: uppercase; font-size: 11.5px; }
.timeline p { margin: 6px 0 0; color: var(--muted); }
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tags li { padding: 8px 14px; border: 1px solid var(--line-strong); font-size: var(--step--1); font-weight: 600; color: var(--ink); background: #fff; }

/* Contact */
.contact-cards { display: grid; gap: 16px; }
.contact-card { display: grid; gap: 4px; padding: 28px; border: 1px solid var(--line-strong); background: #fff; text-decoration: none; transition: border-color .25s; }
.contact-card:hover { border-color: var(--red); color: inherit; }
.contact-card small { font-size: 11.5px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--red); }
.contact-card b { font-size: var(--step-2); color: var(--ink); overflow-wrap: anywhere; }
.form { display: grid; gap: 18px; }
.form label { display: grid; gap: 6px; font-weight: 600; color: var(--ink); font-size: var(--step--1); }
.form input, .form textarea, .form select {
  font: 400 var(--step-0)/1.5 var(--font); color: var(--ink); padding: 14px 16px; border: 1.5px solid var(--line-strong); background: #fff; border-radius: 0; width: 100%;
}
.form input:focus, .form textarea:focus, .form select:focus { outline: none; border-color: var(--red); }
.form textarea { min-height: 160px; resize: vertical; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form__note { font-size: var(--step--1); color: var(--muted); margin: 0; }
@media (max-width: 600px) { .form__row { grid-template-columns: 1fr; } }

/* Mentions */
.legal { max-width: 52em; }
.legal h2 { font-size: var(--step-2); margin-top: 2em; }
.todo { background: #fff3f6; border-left: 3px solid var(--red); padding: 2px 8px; color: var(--red-deep); font-weight: 600; }

/* 404 */
.notfound { min-height: 70vh; display: grid; place-items: center; text-align: center; }
.notfound h1 { font-size: var(--step-5); }

/* ---------- Pied de page ---------- */
.site-footer { background: var(--ink); color: #a9adb6; padding-top: clamp(56px, 7vw, 96px); --logo-ink: #fff; --logo-arc: var(--steel); }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: #fff; }
.site-footer__top { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.6fr); gap: 48px; padding-bottom: 56px; }
.site-footer__brand .logo { width: 180px; }
.site-footer__motto { margin-top: 24px; font-size: var(--step-2); font-weight: 300; color: #fff; }
.site-footer__place { margin: 8px 0 0; font-size: var(--step--1); color: var(--steel); }
.contact-card span { color: var(--muted); font-size: var(--step--1); }
.site-footer__nav { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.site-footer__nav .label { color: var(--steel); }
.site-footer__nav ul { display: grid; gap: 10px; }
.site-footer__bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px; padding-block: 24px; border-top: 1px solid #1f2333; font-size: var(--step--1); }
.site-footer__bottom p { margin: 0; }
.status { display: inline-flex; align-items: center; gap: 10px; }
@media (max-width: 860px) {
  .site-footer__top { grid-template-columns: 1fr; }
  .site-footer__nav { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) { .site-footer__nav { grid-template-columns: 1fr; } }

/* ---------- Apparition au défilement ---------- */
.js [data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.js [data-reveal].is-in { opacity: 1; transform: none; }
.js [data-reveal-delay="1"] { transition-delay: .12s; }
.js [data-reveal-delay="2"] { transition-delay: .24s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .jargon__track { animation: none; }
  html { scroll-behavior: auto; }
}
@media print {
  .site-header, .site-footer, .jargon, .cta, .diag { display: none; }
}

/* ---------- Compléments ---------- */
ol.steps, ol.timeline { list-style: none; padding: 0; margin: 0; }
.timeline { margin-left: 6px; }
.section--ink .tags li { background: transparent; color: #fff; border-color: #2a2f42; }
.section-title-sm { font-size: var(--step-3); }

/* Solutions IA sur mesure */
.build { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: #1f2333; border: 1px solid #1f2333; }
.build__card { background: var(--ink); padding: 28px 24px; transition: background .3s; }
.build__card:hover { background: #0b0f20; }
.build__tag { display: inline-block; font-size: 11px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; color: var(--red); margin-bottom: 18px; }
.build__card h3 { font-size: var(--step-1); }
.build__card p { margin: 0; font-size: var(--step--1); line-height: 1.6; color: #a9adb6; }
.beforeafter { display: grid; grid-template-columns: 1fr auto 1fr; gap: 24px 40px; align-items: center; margin: 56px 0 72px; padding: clamp(24px, 4vw, 48px); border: 1px solid #2a2f42; position: relative; }
.beforeafter__label { position: absolute; top: -11px; left: 24px; margin: 0; padding: 0 10px; background: var(--ink); font-size: 11px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; color: var(--steel); }
.beforeafter__col b { display: block; font-size: var(--step-2); color: #fff; margin-bottom: 8px; }
.beforeafter__col:nth-child(2) b { color: var(--steel); }
.beforeafter__col:last-child b { color: var(--red); }
.beforeafter__col p { margin: 0; color: #c9ccd2; }
.beforeafter__arrow { font-size: var(--step-4); color: var(--red); line-height: 1; }
@media (max-width: 1000px) { .build { grid-template-columns: 1fr 1fr; } }
@media (max-width: 760px) {
  .build { grid-template-columns: 1fr; }
  .beforeafter { grid-template-columns: 1fr; }
  .beforeafter__arrow { transform: rotate(90deg); justify-self: start; }
}