/* Biotraxion — site vitrine v4, mise en page « page produit ».
   Sections noires et gris clair en alternance, typographie très grande, effets pilotés par le scroll. */
:root {
  --black: #000; --ink: #1d1d1f; --paper: #f5f5f7; --white: #fff;
  --grey: #86868b; --grey-2: #6e6e73; --grey-d: #a1a1a6;
  --cyan: #00E3FF; --cyan-2: #4AD0E0; --teal: #0A8FA8; --teal-2: #0E6F86; --navy: #070A15;
  --ease: cubic-bezier(.25, .1, .25, 1); --ease-out: cubic-bezier(.16, 1, .3, 1);
  --lnav: 52px; --wrap: 1024px; --r: 28px;
  /* tokens de section, surchargés par .sec--dark / .sec--light */
  --bg: var(--paper); --fg: var(--ink); --fg-2: var(--grey-2); --accent: var(--teal); --on-accent: #fff; --card: var(--white);
}
.sec--dark { --bg: var(--black); --fg: #f5f5f7; --fg-2: var(--grey-d); --accent: var(--cyan); --on-accent: var(--navy); --card: #161617; }
.sec--light { --bg: var(--paper); --fg: var(--ink); --fg-2: var(--grey-2); --accent: var(--teal); --on-accent: #fff; --card: var(--white); }

*, *::before, *::after { box-sizing: border-box; }
html { background: var(--black); scroll-behavior: smooth; scroll-padding-top: calc(var(--lnav) + 8px); -webkit-text-size-adjust: 100%; }
body { margin: 0; font: 400 17px/1.47 "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, sans-serif; letter-spacing: -.011em; color: var(--ink); background: var(--black); overflow-x: clip; -webkit-font-smoothing: antialiased; }
img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; padding: 0; }
h1, h2, h3, h4, p { margin: 0; }
h1, h2, h3 { font-weight: 700; letter-spacing: -.03em; line-height: 1.05; }
.wrap { width: min(100% - 44px, var(--wrap)); margin-inline: auto; }
.center { text-align: center; }
section { position: relative; }
.sec, .sec--dark, .sec--light { background: var(--bg); color: var(--fg); }
.sec { padding-block: clamp(90px, 13vw, 160px); }
.muted { color: var(--fg-2); }
.grad { background: linear-gradient(95deg, #7ff3ff 0%, var(--cyan) 35%, #3a8dff 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.sec--light .grad { background-image: linear-gradient(95deg, var(--teal) 0%, #1466c8 100%); }

.eyebrow { font-size: 19px; font-weight: 600; color: var(--accent); margin-bottom: 10px; letter-spacing: -.01em; }
.h-big { font-size: clamp(44px, 8vw, 96px); letter-spacing: -.045em; line-height: 1.02; }
.h-sec { font-size: clamp(34px, 5.6vw, 64px); letter-spacing: -.04em; line-height: 1.05; margin-bottom: clamp(40px, 6vw, 72px); }
.sub { font-size: clamp(19px, 2.1vw, 24px); font-weight: 500; line-height: 1.35; color: var(--fg-2); max-width: 36em; margin: 22px auto 0; letter-spacing: -.02em; }
.sub--left { margin: -24px 0 56px; }

/* ---------- Boutons ---------- */
.pill { display: inline-flex; align-items: center; justify-content: center; height: 44px; padding: 0 22px; border-radius: 980px; background: var(--accent); color: var(--on-accent); font-size: 17px; font-weight: 500; transition: filter .25s, transform .25s var(--ease); white-space: nowrap; }
.pill:hover { filter: brightness(1.1); }
.pill:active { transform: scale(.97); }
.pill--sm { height: 30px; padding: 0 14px; font-size: 13px; }
.link { color: var(--accent); font-size: 19px; font-weight: 500; display: inline-flex; gap: 4px; align-items: center; }
.link:hover { text-decoration: underline; }
.link--blue { margin-top: 48px; font-size: 17px; }

/* ---------- Bandeau de langue (navigateurs non francophones) ---------- */
.langbar { display: flex; align-items: center; justify-content: center; gap: 14px; padding: 9px 44px; position: relative; background: var(--navy); color: #f5f5f7; font-size: 13px; text-align: center; }
.langbar[hidden] { display: none; }
.langbar a { color: var(--cyan); font-weight: 600; }
.langbar a:hover { text-decoration: underline; }
.langbar button { position: absolute; right: 10px; top: 50%; transform: translateY(-50%); width: 32px; height: 32px; font-size: 20px; line-height: 1; opacity: .7; }
.langbar button:hover { opacity: 1; }

/* ---------- Barres de navigation ---------- */
.lnav { position: sticky; top: 0; z-index: 60; height: var(--lnav); background: rgba(0,0,0,.72); backdrop-filter: saturate(180%) blur(20px); -webkit-backdrop-filter: saturate(180%) blur(20px); border-bottom: 1px solid rgba(255,255,255,.14); color: #f5f5f7; --accent: var(--cyan); --on-accent: var(--navy); transition: background .4s, border-color .4s, color .4s; }
.lnav.is-light { background: rgba(251,251,253,.8); border-color: rgba(0,0,0,.12); color: var(--ink); --accent: var(--teal); --on-accent: #fff; }
.lnav.is-light .lnav__title img { filter: none; }
.lnav__in { width: min(100% - 44px, 1024px); height: 100%; margin-inline: auto; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.lnav__links { display: flex; gap: clamp(14px, 2.4vw, 30px); font-size: 12px; }
.lnav__links a { opacity: .8; transition: opacity .2s, color .2s; }
.lnav__links a:hover { opacity: 1; color: var(--accent); }
.lnav__title img { height: 22px; width: auto; filter: brightness(0) invert(1); transition: filter .4s; }
.lnav__right { display: flex; align-items: center; gap: 22px; font-size: 12px; }
.lnav__link { font-size: 12px; opacity: .8; }
.lnav__link:hover { opacity: 1; color: var(--accent); }
.lnav__lang { font-size: 12px; font-weight: 600; letter-spacing: .02em; padding: 3px 7px; border: 1px solid currentColor; border-radius: 6px; opacity: .7; transition: opacity .2s, color .2s; }
.lnav__lang:hover { opacity: 1; color: var(--accent); }
.lnav__m, .lnav__burger { display: none; }
.lnav__burger { width: 32px; height: 32px; margin-right: -6px; padding: 0; border: 0; background: none; color: inherit; cursor: pointer; position: relative; }
.lnav__burger span { position: absolute; left: 9px; width: 14px; height: 1.5px; background: currentColor; transition: transform .3s var(--ease); }
.lnav__burger span:first-child { top: 12px; }
.lnav__burger span:last-child { top: 18px; }
.lnav.is-open .lnav__burger span:first-child { transform: translateY(3px) rotate(45deg); }
.lnav.is-open .lnav__burger span:last-child { transform: translateY(-3px) rotate(-45deg); }

/* ---------- Hero : la vidéo plein écran se rétracte en carte ---------- */
.hero { height: 220vh; background: var(--black); color: #f5f5f7; --p: 0; }
.hero__sticky { position: sticky; top: var(--lnav); height: calc(100vh - var(--lnav)); overflow: hidden; display: grid; place-items: center; }
.hero__media { position: absolute; inset: 0; clip-path: inset(calc(var(--p) * 5%) calc(var(--p) * 9%) calc(var(--p) * 19%) calc(var(--p) * 9%) round calc(var(--p) * 36px)); will-change: clip-path; }
.hero__media video { width: 100%; height: 100%; object-fit: cover; transform: scale(calc(1.12 - var(--p) * .12)); }
.hero__media::after { content: ""; position: absolute; inset: 0; background: radial-gradient(ellipse 60% 55% at 50% 55%, rgba(0,0,0,.62), rgba(0,0,0,.25) 70%), linear-gradient(180deg, rgba(0,0,0,.5), transparent 30%, transparent 70%, rgba(0,0,0,.6)); opacity: calc(1 - var(--p) * .7); }
.hero__copy { position: relative; text-align: center; padding: 0 22px; opacity: calc(1 - var(--p) * 2.4); transform: translateY(calc(var(--p) * -60px)); }
.hero__kicker { display: block; line-height: 1.2; font-size: clamp(21px, 2.6vw, 28px); font-weight: 600; margin-bottom: 8px; color: var(--cyan); letter-spacing: -.02em; }
.hero h1 { font-size: clamp(48px, 9.4vw, 118px); letter-spacing: -.05em; line-height: .98; }
.hero__sub { font-size: clamp(19px, 2.2vw, 26px); font-weight: 500; color: #e8e8ed; margin: 22px auto 0; max-width: 28em; letter-spacing: -.02em; }
.hero__cta { display: flex; gap: 28px; justify-content: center; align-items: center; margin-top: 34px; --accent: var(--cyan); --on-accent: var(--navy); flex-wrap: wrap; }
.hero__after { position: absolute; left: 0; right: 0; bottom: 4.5%; text-align: center; font-size: clamp(17px, 2vw, 24px); font-weight: 500; color: var(--grey-d); padding: 0 22px; letter-spacing: -.02em; opacity: clamp(0, (var(--p) - .55) * 3, 1); transform: translateY(calc((1 - var(--p)) * 30px)); }
.hero__after strong { color: #f5f5f7; font-weight: 600; }

/* ---------- À la une : carrousel ---------- */
.hl { overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; overscroll-behavior-x: contain; }
.hl::-webkit-scrollbar { display: none; }
.hl__track { display: flex; gap: 20px; padding-inline: max(22px, calc((100vw - var(--wrap)) / 2)); width: max-content; }
.hl__card { position: relative; width: min(86vw, 980px); aspect-ratio: 16 / 9; border-radius: var(--r); overflow: hidden; background: #111; scroll-snap-align: center; flex: none; }
.hl__card video { width: 100%; height: 100%; object-fit: cover; }
.hl__card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,.72), rgba(0,0,0,.2) 40%, transparent 60%); }
.hl__cap { position: absolute; z-index: 1; top: clamp(20px, 4vw, 44px); left: clamp(20px, 4vw, 44px); right: 30%; font-size: clamp(17px, 2.1vw, 26px); font-weight: 600; line-height: 1.2; color: var(--grey-d); letter-spacing: -.02em; }
.hl__cap strong { color: #fff; }
.hl__ctrl { display: flex; justify-content: center; gap: 14px; margin-top: 32px; }
.hl__dots { display: flex; align-items: center; gap: 12px; height: 56px; padding: 0 22px; border-radius: 999px; background: rgba(66,66,69,.72); backdrop-filter: blur(20px); }
.hl__dot { position: relative; width: 8px; height: 8px; border-radius: 99px; background: rgba(255,255,255,.4); overflow: hidden; transition: width .5s var(--ease-out), background .3s; }
.hl__dot.is-active { width: 48px; background: rgba(255,255,255,.35); }
.hl__dot i { position: absolute; inset: 0; background: #f5f5f7; transform: scaleX(0); transform-origin: left; }
.hl__dot.is-active i { animation: fill var(--dur, 6s) linear forwards; }
.hl__ctrl.is-paused .hl__dot.is-active i { animation-play-state: paused; }
@keyframes fill { to { transform: scaleX(1); } }
.hl__play { width: 56px; height: 56px; border-radius: 50%; background: rgba(66,66,69,.72); backdrop-filter: blur(20px); display: grid; place-items: center; color: #f5f5f7; }
.hl__play svg { width: 20px; height: 20px; }
.hl__play .i-play, .hl__ctrl.is-paused .i-pause { display: none; }
.hl__ctrl.is-paused .i-play { display: block; }

/* ---------- Manifeste ---------- */
.manifesto { height: 260vh; background: var(--black); }
.manifesto__sticky { position: sticky; top: var(--lnav); height: calc(100vh - var(--lnav)); display: grid; place-items: center; padding: 0 22px; }
.manifesto__txt { max-width: 980px; font-size: clamp(32px, 5.4vw, 64px); font-weight: 700; line-height: 1.12; letter-spacing: -.04em; color: #f5f5f7; }
.manifesto__txt span { opacity: .16; transition: opacity .25s linear; }
.manifesto__txt span.on { opacity: 1; }
.manifesto__txt span.hi.on { color: var(--cyan); }

/* ---------- L'app ---------- */
.device-wrap { --p: 0; margin: clamp(48px, 7vw, 90px) auto 0; width: min(100% - 44px, 1180px); perspective: 1600px; }
.device { border-radius: clamp(14px, 2vw, 26px); background: #fff; box-shadow: 0 0 0 1px rgba(0,0,0,.06), 0 40px 80px -20px rgba(0,0,0,.25); overflow: hidden; transform: translateY(calc((1 - var(--p)) * 80px)) scale(calc(.86 + var(--p) * .14)) rotateX(calc((1 - var(--p)) * 14deg)); transform-origin: 50% 0; will-change: transform; }
.device__bar { display: flex; align-items: center; gap: 7px; height: 38px; padding: 0 16px; background: #f0f0f3; border-bottom: 1px solid #e3e3e8; }
.device__bar i { width: 11px; height: 11px; border-radius: 50%; background: #d2d2d7; }
.device__bar span { margin: 0 auto; font-size: 12px; color: var(--grey); background: #fff; padding: 3px 60px; border-radius: 7px; transform: translateX(-24px); }
.device__screen { position: relative; aspect-ratio: 1600 / 922; background: #fff; }
.shot { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: top left; opacity: 0; transition: opacity .6s var(--ease); }
.shot.is-active { opacity: 1; }
.seg { position: relative; display: flex; flex-wrap: wrap; justify-content: center; gap: 2px; width: fit-content; max-width: 100%; margin: 40px auto 0; padding: 4px; border-radius: 999px; background: rgba(0,0,0,.06); }
.seg__pill { position: absolute; z-index: 0; height: 36px; border-radius: 999px; background: #fff; box-shadow: 0 2px 8px rgba(0,0,0,.12); transition: left .45s var(--ease-out), width .45s var(--ease-out), top .45s var(--ease-out); }
.seg__tab { position: relative; z-index: 1; height: 36px; padding: 0 16px; border-radius: 999px; font-size: 14px; font-weight: 500; color: var(--grey-2); transition: color .3s; }
.seg__tab.is-active { color: var(--ink); }
.caption { max-width: 640px; margin: 28px auto 0; text-align: center; min-height: 6.5em; transition: opacity .25s; }
.caption.is-swap { opacity: 0; }
.caption h3 { font-size: 21px; letter-spacing: -.02em; }
.caption p { color: var(--fg-2); margin-top: 6px; }
.trio { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; margin-top: 40px; padding-top: 44px; border-top: 1px solid rgba(0,0,0,.1); }
.trio b { display: block; font-size: 19px; font-weight: 600; letter-spacing: -.02em; margin-bottom: 6px; }
.trio p { color: var(--fg-2); font-size: 15px; }

/* ---------- La chaîne : séquence épinglée ---------- */
.chain { height: 440vh; background: var(--black); color: #f5f5f7; }
.chain__sticky { position: sticky; top: var(--lnav); height: calc(100vh - var(--lnav)); overflow: hidden; }
.chain__media, .chain__media video, .chain__shade { position: absolute; inset: 0; width: 100%; height: 100%; }
.chain__media video { object-fit: cover; opacity: 0; transform: scale(1.06); transition: opacity 1s var(--ease), transform 1.6s var(--ease-out); }
.chain__media video.is-active { opacity: 1; transform: scale(1); }
.chain__shade { background: linear-gradient(90deg, rgba(0,0,0,.9) 0%, rgba(0,0,0,.78) 38%, rgba(0,0,0,.2) 68%, rgba(0,0,0,0) 85%); }
.chain__copy { position: relative; height: 100%; display: flex; flex-direction: column; justify-content: center; --accent: var(--cyan); }
.chain__steps { position: relative; max-width: 520px; min-height: 22em; }
.chain__step { position: absolute; inset: 0 0 auto; opacity: 0; transform: translateY(30px); transition: opacity .6s var(--ease), transform .8s var(--ease-out); pointer-events: none; }
.chain__step.is-active { opacity: 1; transform: none; }
.chain__step small { display: block; font-size: 14px; font-weight: 600; color: var(--cyan); letter-spacing: .02em; margin-bottom: 14px; }
.chain__step h2 { font-size: clamp(34px, 4.6vw, 56px); letter-spacing: -.04em; }
.chain__step p { margin-top: 20px; font-size: clamp(17px, 1.6vw, 21px); color: var(--grey-d); line-height: 1.4; }
.chain__bar { position: absolute; right: clamp(16px, 3vw, 40px); top: 50%; width: 3px; height: 30vh; transform: translateY(-50%); background: rgba(255,255,255,.2); border-radius: 3px; overflow: hidden; }
.chain__bar i { position: absolute; inset: 0; background: var(--cyan); transform-origin: top; transform: scaleY(var(--p, 0)); }

/* ---------- Bento ---------- */
.bento { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.tile { position: relative; border-radius: var(--r); background: var(--card); padding: clamp(28px, 3.4vw, 40px); overflow: hidden; min-height: 340px; display: flex; flex-direction: column; justify-content: flex-end; }
.tile--wide { grid-column: span 2; }
.tile--full { grid-column: 1 / -1; min-height: 0; }
.tile small { font-size: 14px; font-weight: 600; color: var(--grey-2); display: block; margin-bottom: 10px; }
.tile p { color: var(--grey-2); font-size: 17px; margin-top: 10px; max-width: 30em; }
.tile--stat { justify-content: space-between; }
.tile .big { font-size: clamp(44px, 5vw, 68px); white-space: nowrap; font-weight: 700; letter-spacing: -.05em; line-height: 1; color: var(--ink); display: block; margin-block: auto 0; }
.tile--dark { background: #000; color: #f5f5f7; }
.tile--dark video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.tile--dark::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(0,0,0,.8), transparent 65%); }
.tile__copy { position: relative; z-index: 1; }
.tile--dark small { color: var(--cyan); }
.tile--dark h3 { font-size: clamp(22px, 2.4vw, 30px); letter-spacing: -.03em; line-height: 1.12; max-width: 22em; }
.tile--dark p { color: var(--grey-d); }
.refs { display: flex; flex-wrap: wrap; gap: 10px; margin-block: 8px 0; }
.refs span { padding: 12px 20px; border-radius: 999px; background: var(--paper); font-weight: 600; font-size: clamp(15px, 1.6vw, 19px); letter-spacing: -.01em; }

/* ---------- Otto ---------- */
.otto { overflow: hidden; }
.otto::before { content: ""; position: absolute; right: -10%; top: 10%; width: 60vw; height: 60vw; background: radial-gradient(circle, rgba(0,227,255,.16), transparent 60%); pointer-events: none; }
.otto__grid { position: relative; display: grid; grid-template-columns: 1fr 1.3fr; gap: clamp(32px, 5vw, 72px); align-items: center; }
.sub--flush { margin: 22px 0 0; }
.otto__asks { list-style: none; margin: 36px 0 0; padding: 0; display: grid; gap: 10px; justify-items: start; }
.otto__asks li { padding: 12px 18px; border-radius: 20px 20px 20px 6px; background: #1d1d1f; border: 1px solid rgba(255,255,255,.08); color: #f5f5f7; font-size: 15px; font-weight: 500; max-width: 30em; }
.js .otto__asks li { opacity: 0; transform: translateY(14px) scale(.97); transition: opacity .5s var(--ease), transform .6s var(--ease-out); }
.js .otto__asks.is-in li { opacity: 1; transform: none; }
.otto__asks.is-in li:nth-child(2) { transition-delay: .7s; }
.otto__asks.is-in li:nth-child(3) { transition-delay: 1.4s; }
.otto__screen { border-radius: clamp(14px, 2vw, 22px); overflow: hidden; background: #fff; box-shadow: 0 0 0 1px rgba(255,255,255,.1), 0 40px 100px -20px rgba(0,227,255,.25); aspect-ratio: 1600 / 922; width: min(62vw, 980px); }
.otto__screen video { width: 100%; height: 100%; object-fit: cover; object-position: top left; }

/* ---------- Film ---------- */
.film { --p: 0; padding-bottom: clamp(90px, 13vw, 160px); }
.film__poster { position: relative; display: block; width: calc(100% - 44px - (1 - var(--p)) * max(0px, 100% - 44px - 1024px)); max-width: 1480px; margin: 56px auto 0; aspect-ratio: 16 / 9; border-radius: var(--r); overflow: hidden; background: #111; }
.film__poster video { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease-out); }
.film__poster:hover video { transform: scale(1.03); }
.film__btn { position: absolute; left: 50%; top: 50%; width: 88px; height: 88px; margin: -44px 0 0 -44px; border-radius: 50%; display: grid; place-items: center; background: rgba(255,255,255,.2); backdrop-filter: blur(20px); color: #fff; transition: transform .4s var(--ease-out), background .3s; }
.film__btn svg { width: 34px; height: 34px; margin-left: 4px; }
.film__poster:hover .film__btn { transform: scale(1.1); background: rgba(255,255,255,.3); }

/* ---------- Pour qui ---------- */
.who { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 20px; }
.who__card { position: relative; border-radius: var(--r); overflow: hidden; min-height: 540px; background: #000; color: #f5f5f7; display: flex; align-items: flex-end; }
.who__card video, .who__card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease-out); }
.who__card:hover video, .who__card:hover img { transform: scale(1.04); }
.who__card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(0,0,0,.85) 0%, rgba(0,0,0,.2) 55%, transparent); }
.who__copy { position: relative; z-index: 1; padding: 32px; }
.who__copy small { font-size: 13px; font-weight: 600; color: var(--cyan); }
.who__copy h3 { font-size: clamp(24px, 2.4vw, 32px); letter-spacing: -.03em; margin: 6px 0 10px; }
.who__copy p { color: var(--grey-d); font-size: 15px; }

/* ---------- Chiffres ---------- */
.facts { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; border-top: 1px solid rgba(255,255,255,.16); padding-top: 44px; }
.facts b { display: block; font-size: clamp(44px, 5.6vw, 72px); font-weight: 700; letter-spacing: -.05em; line-height: 1.05; }
.facts span { display: block; color: var(--fg-2); margin-top: 8px; font-size: 17px; }

/* ---------- Équipe ---------- */
.person { background: var(--card); border-radius: var(--r); padding: clamp(28px, 4vw, 48px); display: flex; align-items: center; gap: clamp(24px, 4vw, 48px); max-width: 760px; }
.person__av { flex: none; width: clamp(96px, 14vw, 160px); height: clamp(96px, 14vw, 160px); border-radius: 50%; object-fit: cover; }
.person h3 { font-size: clamp(24px, 2.6vw, 32px); letter-spacing: -.03em; }
.person__role { color: var(--teal); font-weight: 600; font-size: 14px; margin: 4px 0 14px; }
.person p:not(.person__role) { color: var(--grey-2); font-size: 17px; }
.person__mail { margin-top: 16px; margin-right: 22px; font-size: 17px; }
.team-duo { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; max-width: 760px; margin-top: 20px; }
.team-duo .person { flex-direction: column; align-items: flex-start; gap: 20px; }
.team-duo .person__av { width: 72px; height: 72px; }
.team-duo .person h3 { font-size: clamp(20px, 2vw, 24px); }
.person__av--init { display: grid; place-items: center; background: var(--teal); color: #fff; font-weight: 600; font-size: 24px; letter-spacing: .02em; }

/* ---------- FAQ ---------- */
.faq { --bg: #fff; --fg: var(--ink); --fg-2: var(--grey-2); --accent: var(--teal); }
.faq__list { border-top: 1px solid #d2d2d7; }
.faq__item { border-bottom: 1px solid #d2d2d7; }
.faq__item summary { list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 26px 0; }
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item h3 { font-size: clamp(19px, 2vw, 24px); font-weight: 600; letter-spacing: -.02em; line-height: 1.25; }
.faq__item i { position: relative; flex: none; width: 16px; height: 16px; }
.faq__item i::before, .faq__item i::after { content: ""; position: absolute; left: 0; top: 7px; width: 16px; height: 2px; border-radius: 2px; background: var(--grey-2); transition: transform .35s var(--ease-out); }
.faq__item i::after { transform: rotate(90deg); }
.faq__item[open] i::after { transform: rotate(0); }
.faq__item summary:hover h3 { color: var(--accent); }
.faq__item p { color: var(--grey-2); font-size: 17px; max-width: 46em; padding: 0 40px 28px 0; }

/* ---------- Contact ---------- */
.contact { overflow: hidden; }
.contact__bg { position: absolute; inset: 0; opacity: .35; }
.contact__bg video { width: 100%; height: 100%; object-fit: cover; }
.contact__bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, #000 0%, rgba(0,0,0,.6) 40%, #000 100%); }
.contact .wrap { position: relative; }
.form { display: grid; gap: 16px; max-width: 720px; margin-top: 56px; padding: clamp(24px, 4vw, 40px); border-radius: var(--r); background: rgba(29,29,31,.72); backdrop-filter: blur(24px) saturate(160%); -webkit-backdrop-filter: blur(24px) saturate(160%); border: 1px solid rgba(255,255,255,.1); }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form__row label > span, .form > label > span, .chips legend { display: block; font-size: 13px; font-weight: 500; color: var(--grey-d); margin-bottom: 6px; padding: 0; }
.form input:not([type=radio]), .form textarea { width: 100%; height: 52px; padding: 0 16px; border-radius: 12px; border: 1px solid rgba(255,255,255,.16); background: rgba(0,0,0,.35); color: #f5f5f7; font: inherit; transition: border-color .2s, box-shadow .2s; }
.form textarea { height: 120px; padding: 14px 16px; resize: vertical; }
.form input:focus, .form textarea:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 0 4px rgba(0,227,255,.18); }
.chips { border: 0; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.chips legend { width: 100%; }
.chips label { cursor: pointer; }
.chips input { position: absolute; opacity: 0; pointer-events: none; }
.chips span { display: inline-flex; align-items: center; height: 38px; padding: 0 18px; border-radius: 999px; border: 1px solid rgba(255,255,255,.2); font-size: 15px; transition: all .25s; }
.chips input:checked + span { background: #f5f5f7; color: #000; border-color: #f5f5f7; }
.chips input:focus-visible + span { box-shadow: 0 0 0 4px rgba(0,227,255,.35); }
.form__end { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; margin-top: 8px; }
.form__end p { font-size: 12px; color: var(--grey); flex: 1; min-width: 200px; }
.contact__list { display: flex; justify-content: center; flex-wrap: wrap; gap: clamp(24px, 6vw, 72px); margin-top: 56px; font-size: 17px; font-weight: 500; }
.contact__list small { display: block; font-size: 12px; color: var(--grey); font-weight: 500; }
.contact__list a:hover { color: var(--cyan); }

/* ---------- Pied de page ---------- */
.footer { background: var(--paper); color: var(--grey-2); font-size: 12px; padding-block: 24px 32px; }
.footer__note { padding-bottom: 16px; border-bottom: 1px solid #d2d2d7; }
.footer__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; padding-block: 24px; border-bottom: 1px solid #d2d2d7; }
.footer h4 { color: var(--ink); font-size: 12px; font-weight: 600; margin: 0 0 10px; }
.footer__grid a, .footer__grid button { display: block; font-size: 12px; color: var(--grey-2); margin-bottom: 8px; text-align: left; }
.footer__grid a:hover, .footer__grid button:hover { text-decoration: underline; color: var(--ink); }
.footer__legal { padding-top: 16px; }

/* ---------- Mentions légales ---------- */
.legal { background: var(--bg); color: var(--fg); padding-block: clamp(56px, 8vw, 96px); }
.legal__in { max-width: 760px; }
.legal h1 { font-size: clamp(40px, 6vw, 64px); letter-spacing: -.045em; }
.legal__date { color: var(--fg-2); font-size: 14px; margin-top: 12px; }
.legal__toc { display: flex; flex-wrap: wrap; gap: 8px; margin: 32px 0 16px; }
.legal__toc a { padding: 8px 14px; border-radius: 999px; background: var(--card); font-size: 13px; font-weight: 500; }
.legal__toc a:hover { color: var(--accent); }
.legal section { padding-top: 40px; margin-top: 40px; border-top: 1px solid rgba(0,0,0,.1); scroll-margin-top: 70px; }
.legal h2 { font-size: 24px; letter-spacing: -.03em; margin-bottom: 16px; }
.legal p, .legal li { color: var(--grey-2); }
.legal p + p, .legal ul, .legal dl + p { margin-top: 12px; }
.legal strong { color: var(--ink); font-weight: 600; }
.legal a:not(.link) { color: var(--accent); }
.legal ul { padding-left: 1.2em; display: grid; gap: 6px; }
.legal dl { display: grid; grid-template-columns: minmax(140px, 1fr) 2fr; gap: 10px 24px; margin: 16px 0 0; padding: 24px; border-radius: 18px; background: var(--card); }
.legal dt { color: var(--grey-2); font-size: 14px; }
.legal dd { margin: 0; color: var(--ink); font-weight: 500; }
.legal mark { background: #fff3b0; color: #6b4e00; padding: 1px 6px; border-radius: 6px; }
.legal__back { margin-top: 56px; }
@media (max-width: 734px) { .legal dl { grid-template-columns: 1fr; gap: 2px; } .legal dd { margin-bottom: 10px; } }

/* ---------- Lecteur ---------- */
.player { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 4vw; background: rgba(0,0,0,.92); backdrop-filter: blur(10px); opacity: 0; visibility: hidden; transition: opacity .4s, visibility .4s; }
.player.is-open { opacity: 1; visibility: visible; }
.player video { width: min(100%, 1400px); max-height: 86vh; border-radius: 18px; transform: scale(.94); transition: transform .5s var(--ease-out); }
.player.is-open video { transform: none; }
.player__close { position: absolute; top: 20px; right: 20px; width: 44px; height: 44px; border-radius: 50%; background: rgba(255,255,255,.14); color: #fff; font-size: 26px; line-height: 1; }

/* ---------- Apparitions ---------- */
.js [data-reveal] { opacity: 0; transform: translateY(40px); transition: opacity 1s var(--ease), transform 1.1s var(--ease-out); }
.js [data-reveal].is-in { opacity: 1; transform: none; }

/* ---------- Petits écrans ---------- */
@media (max-width: 900px) {
  .lnav__burger { display: block; }
  .lnav__links { display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; gap: 0; padding: 8px 22px 24px; background: #000; border-bottom: 1px solid rgba(255,255,255,.14); font-size: 20px; font-weight: 600; max-height: calc(100vh - var(--lnav)); overflow-y: auto; }
  .lnav.is-open { background: #000; }
  .lnav.is-open.is-light, .lnav.is-light .lnav__links { background: #fbfbfd; border-color: rgba(0,0,0,.12); }
  .lnav.is-open .lnav__links { display: flex; }
  .lnav__links a { padding: 12px 0; opacity: 1; }
  .lnav__m { display: block; }
  .lnav__link { display: none; }
  .bento, .who { grid-template-columns: 1fr 1fr; }
  .who__card--main { grid-column: span 2; }
  .facts { grid-template-columns: 1fr 1fr; }
  .trio { grid-template-columns: 1fr; gap: 20px; }
  .otto__grid { grid-template-columns: 1fr; }
  .otto__screen { width: 100%; }
}
@media (max-width: 734px) {
  body { font-size: 16px; }
  .lnav__right { gap: 14px; }
  .bento, .who, .form__row, .team-duo { grid-template-columns: 1fr; }
  .person { flex-direction: column; align-items: flex-start; }
  .tile--wide, .tile--full, .who__card--main { grid-column: auto; }
  .tile { min-height: 280px; }
  .tile--stat { min-height: 0; gap: 28px; }
  .who__card { min-height: 420px; }
  .hero { height: 180vh; }
  .hl__card { aspect-ratio: 4 / 5; }
  .hl__card video { object-position: 60% 50%; }
  .hl__cap { right: 20px; }
  .chain__shade { background: linear-gradient(0deg, rgba(0,0,0,.94) 0%, rgba(0,0,0,.85) 50%, rgba(0,0,0,.15) 85%); }
  .chain__copy { justify-content: flex-end; padding-bottom: 12vh; }
  .chain__steps { min-height: 17em; }
  .device__bar span { display: none; }
  .seg__tab { padding: 0 12px; font-size: 13px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js [data-reveal] { opacity: 1; transform: none; transition: none; }
  .hl__dot.is-active i { animation: none; transform: scaleX(1); }
  .js .otto__asks li { opacity: 1; transform: none; transition: none; }
}