/* ============================================================
   IMBACK — Pages Play Store (solutions-vente.org)
   Design system partagé : imback.html / imback-privacy.html / imback-terms.html
============================================================ */
:root{
  --ink:#0B2422; --ink-2:#0E3A33; --ink-3:#123F38;
  --teal:#0C6B58; --teal-br:#17B892; --teal-soft:#E2F0EB;
  --signal:#E8502A; --amber:#E9A13B; --ocean:#17708C;
  --paper:#F6F3EC; --paper-2:#EDE8DC; --card:#FFFFFF;
  --text:#182825; --muted:#5C6B66; --line:#DAD3C4;
  --disp:'Anton',Impact,sans-serif;
  --sans:'IBM Plex Sans',system-ui,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,monospace;
  --shadow:6px 6px 0 rgba(11,36,34,.12);
  --r:16px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--text);background:var(--paper);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
[hidden]{display:none!important}
.wrap{max-width:1120px;margin:0 auto;padding:0 22px}
.mono{font-family:var(--mono)}

/* ---------- Stamp / labels cliniques ---------- */
.stamp{font-family:var(--mono);text-transform:uppercase;letter-spacing:.16em;font-size:11.5px;font-weight:600;color:var(--teal);display:inline-flex;align-items:center;gap:8px}
.stamp::before{content:"";width:22px;height:2px;background:var(--signal)}
.stamp.on-dark{color:var(--teal-br)}

/* ---------- Header ---------- */
header.site{position:sticky;top:0;z-index:60;background:rgba(11,36,34,.94);backdrop-filter:blur(10px);color:#fff;border-bottom:1px solid rgba(255,255,255,.08)}
.nav{display:flex;align-items:center;gap:22px;height:64px}
.brand{display:flex;align-items:baseline;gap:2px;font-family:var(--disp);font-size:24px;letter-spacing:.02em}
.brand em{font-style:normal;color:var(--teal-br)}
.brand .dot{width:7px;height:7px;border-radius:50%;background:var(--signal);margin-left:5px;display:inline-block;animation:pulse 1.8s infinite}
.nav-links{display:flex;gap:22px;margin-left:auto;font-size:14px;font-weight:500}
.nav-links a{opacity:.82;transition:opacity .15s}
.nav-links a:hover{opacity:1;color:var(--teal-br)}
.nav-cta{display:flex;align-items:center;gap:14px}
.lang{display:flex;border:1px solid rgba(255,255,255,.25);border-radius:99px;overflow:hidden}
.lang-btn{background:none;border:none;color:#fff;font-family:var(--mono);font-size:12px;font-weight:600;padding:6px 12px;cursor:pointer;transition:background .15s,color .15s}
.lang-btn.active{background:var(--teal-br);color:var(--ink)}
@keyframes pulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.5);opacity:.5}}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font-weight:600;font-size:15px;padding:13px 24px;border-radius:12px;border:2px solid var(--ink);cursor:pointer;transition:transform .15s,box-shadow .15s;background:var(--card);color:var(--ink)}
.btn:hover{transform:translate(-2px,-2px);box-shadow:var(--shadow)}
.btn-primary{background:var(--signal);border-color:var(--signal);color:#fff}
.btn-ghost{background:transparent}
.play-badge{display:inline-flex;align-items:center;gap:12px;background:#000;color:#fff;border:1.5px solid rgba(255,255,255,.25);border-radius:12px;padding:10px 18px;transition:transform .15s,box-shadow .15s}
.play-badge:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(0,0,0,.35)}
.play-badge svg{width:26px;height:26px;flex:none}
.play-badge small{display:block;font-family:var(--mono);font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;opacity:.85}
.play-badge strong{display:block;font-size:18px;font-family:var(--sans);font-weight:700;line-height:1.1}

/* ---------- Hero ---------- */
.hero{position:relative;background:radial-gradient(120% 140% at 80% -10%,var(--ink-3),var(--ink) 60%);color:#fff;overflow:hidden;padding:78px 0 96px}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:44px 44px;mask-image:radial-gradient(80% 80% at 50% 0%,#000,transparent)}
.hero .wrap{position:relative;z-index:2}
.hero h1{font-family:var(--disp);font-size:clamp(46px,8vw,92px);line-height:.94;letter-spacing:.01em;margin:18px 0 8px;text-transform:uppercase}
.hero h1 em{font-style:normal;color:var(--teal-br)}
.hero .lead{font-size:clamp(17px,2.2vw,21px);max-width:640px;color:#D7E2DD;margin:18px 0 30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center}
.hero-note{font-family:var(--mono);font-size:12.5px;color:#9FB6AE;margin-top:18px;letter-spacing:.04em}
.ecg{position:absolute;left:0;right:0;bottom:34px;height:60px;z-index:1;opacity:.9}
.ecg path{fill:none;stroke:var(--teal-br);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:1400;stroke-dashoffset:1400;animation:draw 4.5s ease-in-out infinite}
.ecg .beat{stroke:var(--signal)}
@keyframes draw{0%{stroke-dashoffset:1400}55%{stroke-dashoffset:0}100%{stroke-dashoffset:-1400}}

/* ---------- Sections ---------- */
section{padding:80px 0}
.section-head{max-width:680px;margin-bottom:46px}
.section-head h2{font-family:var(--disp);font-size:clamp(32px,5vw,52px);line-height:1;text-transform:uppercase;letter-spacing:.01em;margin:14px 0 12px;color:var(--ink)}
.section-head p{color:var(--muted);font-size:17px}
.dark{background:var(--ink);color:#fff}
.dark .section-head h2{color:#fff}
.dark .section-head p{color:#B9C8C2}

/* ---------- Features ---------- */
.grid{display:grid;gap:20px}
.features{grid-template-columns:repeat(3,1fr)}
.feature{background:var(--card);border:1.5px solid var(--ink);border-radius:var(--r);padding:26px;transition:transform .18s,box-shadow .18s}
.feature:hover{transform:translate(-3px,-3px);box-shadow:var(--shadow)}
.feature .ico{font-size:30px;width:58px;height:58px;display:grid;place-items:center;background:var(--teal-soft);border-radius:14px;margin-bottom:16px}
.feature h3{font-size:18px;margin-bottom:8px;color:var(--ink)}
.feature p{color:var(--muted);font-size:14.5px}

/* ---------- How it works ---------- */
.steps{grid-template-columns:repeat(3,1fr);counter-reset:step}
.step{position:relative;padding-top:14px}
.step .num{font-family:var(--disp);font-size:64px;color:var(--teal-br);line-height:1;opacity:.9}
.dark .step .num{color:var(--teal-br)}
.step h3{font-size:19px;margin:8px 0 8px}
.step p{color:var(--muted);font-size:15px}
.dark .step p{color:#B9C8C2}

/* ---------- Screenshots ---------- */
.shots{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.shot{margin:0}
.phone{width:100%;aspect-ratio:9/19;background:#000;border-radius:26px;padding:8px;border:2px solid rgba(255,255,255,.1);box-shadow:0 18px 44px rgba(0,0,0,.4);transition:transform .2s}
.shot:hover .phone{transform:translateY(-6px)}
.phone img,.shot-ph{width:100%;height:100%;object-fit:cover;border-radius:18px;background:linear-gradient(160deg,var(--ink-3),var(--ink))}
.shot-ph{display:flex;align-items:center;justify-content:center;text-align:center;padding:14px;font-family:var(--mono);font-size:10.5px;color:#8FA79F;word-break:break-all;border:1px dashed rgba(255,255,255,.2)}
.shot figcaption{margin-top:12px;text-align:center;font-size:13px;color:#B9C8C2;font-weight:500}

/* ---------- Premium ---------- */
.premium{background:linear-gradient(135deg,var(--ink-2),var(--ink));border:1.5px solid var(--teal);border-radius:22px;padding:44px;display:flex;gap:34px;align-items:center;flex-wrap:wrap;color:#fff}
.premium .txt{flex:1;min-width:280px}
.premium h3{font-family:var(--disp);font-size:34px;text-transform:uppercase;margin-bottom:10px}
.premium p{color:#C4D2CC;margin-bottom:6px}
.premium ul{list-style:none;margin:16px 0 0}
.premium li{padding:6px 0 6px 28px;position:relative;color:#D7E2DD;font-size:15px}
.premium li::before{content:"✓";position:absolute;left:0;color:var(--teal-br);font-weight:700}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto}
.faq details{background:var(--card);border:1.5px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:border-color .15s}
.faq details[open]{border-color:var(--teal)}
.faq summary{cursor:pointer;padding:18px 22px;font-weight:600;font-size:16px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:14px;color:var(--ink)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--mono);font-size:22px;color:var(--teal);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .ans{padding:0 22px 20px;color:var(--muted);font-size:15px}

/* ---------- CTA final ---------- */
.cta-final{text-align:center;background:radial-gradient(120% 160% at 50% 0%,var(--ink-3),var(--ink));color:#fff;border-radius:26px;padding:64px 30px}
.cta-final h2{font-family:var(--disp);font-size:clamp(34px,6vw,64px);text-transform:uppercase;line-height:.96;margin-bottom:16px}
.cta-final h2 em{font-style:normal;color:var(--teal-br)}
.cta-final p{color:#C4D2CC;max-width:520px;margin:0 auto 28px;font-size:17px}

/* ---------- Footer ---------- */
footer.site{background:var(--ink);color:#9FB6AE;padding:54px 0 30px;font-size:14px}
.foot-grid{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;margin-bottom:34px}
.foot-brand{font-family:var(--disp);font-size:26px;color:#fff}
.foot-brand em{font-style:normal;color:var(--teal-br)}
.foot-col h4{color:#fff;font-size:13px;text-transform:uppercase;letter-spacing:.1em;margin-bottom:12px;font-family:var(--mono)}
.foot-col a{display:block;padding:5px 0;opacity:.8;transition:opacity .15s,color .15s}
.foot-col a:hover{opacity:1;color:var(--teal-br)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:22px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px;font-family:var(--mono)}

/* ---------- Prose (privacy / terms) ---------- */
.legal-hero{background:var(--ink);color:#fff;padding:64px 0 50px}
.legal-hero h1{font-family:var(--disp);font-size:clamp(36px,6vw,60px);text-transform:uppercase;line-height:.96;margin:14px 0 10px}
.legal-hero .updated{font-family:var(--mono);font-size:12.5px;color:#9FB6AE;letter-spacing:.05em}
.prose{max-width:820px;margin:0 auto;padding:56px 22px 80px}
.prose h2{font-family:var(--disp);font-size:24px;text-transform:uppercase;color:var(--ink);margin:42px 0 12px;letter-spacing:.01em}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:17px;color:var(--teal);margin:24px 0 8px}
.prose p{margin-bottom:14px;color:#2C3A36}
.prose ul{margin:0 0 16px 22px}
.prose li{margin-bottom:8px;color:#2C3A36}
.prose a{color:var(--teal);text-decoration:underline}
.prose .callout{background:var(--teal-soft);border-left:4px solid var(--teal);border-radius:0 12px 12px 0;padding:18px 22px;margin:22px 0;font-size:15px}
.prose .callout.warn{background:#FCEEE9;border-left-color:var(--signal)}
.back-link{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:13px;color:var(--teal-br);margin-bottom:8px}
.back-link:hover{color:#fff}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media(max-width:900px){
  .features{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr;gap:30px}
  .shots{grid-template-columns:repeat(3,1fr)}
  .nav-links{display:none}
}
@media(max-width:600px){
  .features{grid-template-columns:1fr}
  .shots{grid-template-columns:repeat(2,1fr)}
  section{padding:56px 0}
  .premium{padding:30px}
  .hero{padding:56px 0 80px}
}
/* ============================================================
   Visionneuse d'illustrations (lightbox) — zoom & navigation
============================================================ */
.shot{cursor:zoom-in}
.shot .phone{position:relative}
.shot .zoom-hint{position:absolute;top:10px;right:10px;width:30px;height:30px;border-radius:50%;
  background:rgba(11,36,34,.5);backdrop-filter:blur(4px);display:grid;place-items:center;color:#fff;
  opacity:.6;transition:opacity .2s ease,transform .2s ease;pointer-events:none;z-index:2}
.shot:hover .zoom-hint,.shot:focus-within .zoom-hint{opacity:1;transform:scale(1.12)}
.shot .zoom-hint svg{width:15px;height:15px}

.lb{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;touch-action:none;
  background:radial-gradient(120% 120% at 50% 28%,rgba(8,20,18,.86),rgba(4,10,9,.97));backdrop-filter:blur(9px)}
.lb.lb-open{opacity:1;visibility:visible}
.lb-stage{margin:0;max-width:92vw;max-height:86vh;display:flex;flex-direction:column;align-items:center;gap:14px;
  opacity:0;transform:translateY(16px) scale(.96);transition:opacity .35s ease,transform .35s cubic-bezier(.2,.9,.3,1.1)}
.lb.lb-open .lb-stage{opacity:1;transform:none}
.lb-img{max-width:92vw;max-height:78vh;width:auto;height:auto;object-fit:contain;border-radius:14px;
  box-shadow:0 30px 80px rgba(0,0,0,.55);user-select:none;-webkit-user-drag:none;cursor:zoom-in;
  will-change:transform;touch-action:none}
.lb-img.lb-anim{transition:transform .35s cubic-bezier(.2,.9,.3,1.1)}
.lb-img.lb-zoomed{cursor:zoom-out}
.lb-cap{color:#cfe0d9;font:500 14px/1.3 var(--sans);text-align:center;max-width:80vw}
.lb-count{position:absolute;bottom:18px;left:50%;transform:translateX(-50%);
  font:600 12px var(--mono);letter-spacing:.12em;color:#8FA79F;background:rgba(11,36,34,.5);padding:5px 12px;border-radius:99px}
.lb-close{position:absolute;top:16px;right:16px;width:46px;height:46px;border-radius:50%;
  border:1.5px solid rgba(255,255,255,.25);background:rgba(11,36,34,.4);color:#fff;display:grid;place-items:center;
  cursor:pointer;transition:transform .25s ease,background .2s ease,border-color .2s ease}
.lb-close:hover{background:var(--signal);border-color:var(--signal);transform:rotate(90deg)}
.lb-close svg{width:20px;height:20px}
.lb-nav{position:absolute;top:50%;transform:translateY(-50%);width:52px;height:52px;border-radius:50%;
  border:1.5px solid rgba(255,255,255,.2);background:rgba(11,36,34,.35);color:#fff;display:grid;place-items:center;
  cursor:pointer;opacity:.8;transition:background .2s ease,transform .2s ease,opacity .2s ease}
.lb-nav:hover{background:var(--teal);opacity:1}
.lb-prev{left:16px}.lb-next{right:16px}
.lb-prev:hover{transform:translateY(-50%) translateX(-3px)}
.lb-next:hover{transform:translateY(-50%) translateX(3px)}
.lb-nav svg{width:24px;height:24px}
.lb-single .lb-nav{display:none}
.lb-lock{overflow:hidden}
@media (max-width:600px){
  .lb-nav{width:42px;height:42px}.lb-prev{left:8px}.lb-next{right:8px}.lb-close{top:10px;right:10px}
}
@media (prefers-reduced-motion:reduce){.lb,.lb *{transition:none!important;animation:none!important}}