/* ===================================================================
   Pro-IA · accueil « 4 offres » + pages Logiciels & Réalisations (10/10/2026)
   Reprend à l'identique la maquette validée : mockups/proia-accueil-4offres/ (variante A).
   Chargé APRÈS style.css (tokens, nav, préloader, ciel, .play / .reveal).
   Blocs préfixés ac- (zéro collision avec le reste du site).
   =================================================================== */

/* ?seek=end (vérification par capture) : fige l'état final */
html.seek *,html.seek *::before,html.seek *::after{animation-duration:0s!important;animation-delay:0s!important;transition:none!important}
html.seek #pre{display:none}
:focus-visible{outline:2px solid var(--v3);outline-offset:3px}

/* ---------- boutons ---------- */
.ac-btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.ac-ghost{display:inline-flex;align-items:center;gap:10px;padding:15px 24px;border-radius:100px;border:1px solid rgba(212,175,55,.32);
  color:var(--t1);text-decoration:none;font-weight:600;font-size:15px;transition:background .2s,border-color .2s}
.ac-ghost:hover{background:rgba(212,175,55,.08);border-color:var(--v)}
.cta:active,.ac-ghost:active{transform:translateY(1px) scale(.99)}

/* ---------- héro split (A) ---------- */
.hero.ac-hero{text-align:left;padding:64px 0 40px}
.ac-hero .ctn{display:grid;grid-template-columns:1.32fr .68fr;gap:36px;align-items:center}
.ac-hero h1{font-size:clamp(36px,3.6vw,50px);letter-spacing:-1.6px;line-height:1.06}
.ac-hero .hero-sub{margin:20px 0 0;max-width:520px}
.hero.ac-hero .hero-btns,.hero.ac-hero-b .hero-btns,.hero.ac-hero-c .hero-btns{justify-content:flex-start}
.ac-collage{position:relative;height:440px;width:calc(100% + 90px)}
.ac-collage figcaption{position:absolute;left:0;bottom:-26px;font:600 12.5px Inter,sans-serif;color:rgba(246,239,223,.6)}
@media(min-width:1024px) and (max-width:1280px){.ac-collage{width:calc(100% + 24px)}}
@keyframes acWall{from{opacity:0;transform:translateY(18px)}}
.ac-shot{position:absolute;border-radius:14px;overflow:hidden;border:1px solid rgba(246,239,223,.12);
  box-shadow:0 30px 70px -25px rgba(0,0,0,.85),0 0 0 1px rgba(0,0,0,.4);background:#0c0b08;
  opacity:0;transform:translateY(26px) scale(.97);will-change:transform}
.ac-shot img{display:block;width:100%;height:100%;object-fit:cover}
.ac-shot.phone{border-radius:30px;border:6px solid #1b1813;box-shadow:0 30px 70px -20px rgba(0,0,0,.9),0 0 0 1px rgba(212,175,55,.25)}
.ac-collage .s2{width:92%;height:270px;right:0;top:0}
.ac-collage .s1{width:58%;height:170px;left:0;bottom:8px;z-index:2}
.ac-collage .s3{width:152px;height:330px;right:5%;top:96px;z-index:3}
.play .ac-shot{animation:acShot .9s cubic-bezier(.2,.8,.2,1) forwards}
.play .ac-shot.s1{animation-delay:.9s}.play .ac-shot.s2{animation-delay:1.05s}.play .ac-shot.s3{animation-delay:1.2s}
@keyframes acShot{to{opacity:1;transform:none}}

/* ---------- deux univers (A) ---------- */
.ac-sec{padding:80px 0;position:relative}
.ac-h2{font-family:'Space Grotesk';font-weight:900;font-size:clamp(28px,3.4vw,42px);letter-spacing:-1px;line-height:1.08;text-wrap:balance}
.ac-lead{color:var(--t2);font-size:16.5px;max-width:58ch;margin-top:10px}
.ac-univers{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:38px}
.ac-u{position:relative;border-radius:26px;padding:30px 30px 26px;border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(212,175,55,.09),rgba(26,22,14,.5) 45%);overflow:hidden;transition:opacity .35s,transform .35s,border-color .35s}
.ac-u.tr{border-color:rgba(34,197,94,.18);background:linear-gradient(160deg,rgba(34,197,94,.09),rgba(14,20,16,.5) 45%)}
@media(hover:hover){.ac-univers:hover .ac-u:not(:hover):not(:focus-within){opacity:.5}}
.ac-u:hover{transform:translateY(-3px);border-color:var(--v)}
.ac-u.tr:hover{border-color:var(--up)}
.ac-u .who{font:800 11.5px 'JetBrains Mono',monospace;letter-spacing:2px;text-transform:uppercase;color:var(--v3)}
.ac-u.tr .who{color:var(--up)}
.ac-u h3{font-family:'Space Grotesk';font-weight:900;font-size:27px;letter-spacing:-.6px;margin:8px 0 18px;line-height:1.1}
.ac-offer{display:grid;grid-template-columns:1fr auto;gap:6px 16px;align-items:center;padding:18px 0;border-top:1px solid rgba(212,175,55,.12);text-decoration:none}
.ac-u.tr .ac-offer{border-top-color:rgba(34,197,94,.14)}
.ac-offer b{font:700 18px 'Space Grotesk',sans-serif;color:var(--t1)}
.ac-offer p{grid-column:1;color:var(--t2);font-size:14.5px}
.ac-offer .chips{grid-column:1;display:flex;flex-wrap:wrap;gap:6px;margin-top:6px}
.ac-offer .chips span{font-size:12px;padding:4px 10px;border-radius:100px;background:rgba(246,239,223,.05);border:1px solid rgba(246,239,223,.08);color:var(--t2)}
.ac-offer .go{grid-column:2;grid-row:1/4;width:40px;height:40px;border-radius:50%;display:grid;place-items:center;border:1px solid rgba(212,175,55,.3);color:var(--v3);transition:background .2s,transform .2s}
.ac-u.tr .ac-offer .go{border-color:rgba(34,197,94,.35);color:var(--up)}
.ac-offer:hover .go{background:rgba(212,175,55,.12);transform:translateX(3px)}
.ac-u.tr .ac-offer:hover .go{background:rgba(34,197,94,.12)}
.ac-offer .go svg{width:16px;height:16px}

/* ---------- réalisations bento (A) ---------- */
.ac-bento{display:grid;grid-template-columns:.8fr 1.2fr;grid-template-rows:auto auto;gap:18px;margin-top:36px}
.ac-case{border:1px solid var(--line);border-radius:22px;background:var(--card);overflow:hidden;display:flex;flex-direction:column;text-decoration:none;transition:border-color .3s,transform .3s}
.ac-case:hover{border-color:rgba(212,175,55,.45);transform:translateY(-3px)}
.ac-case .img{position:relative;overflow:hidden;background:#0c0b08}
.ac-case .img img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.2,.8,.2,1)}
.ac-case:hover .img img{transform:scale(1.03)}
.ac-case .txt{padding:18px 20px 20px}
.ac-case .st{display:inline-block;font:800 10.5px 'JetBrains Mono',monospace;letter-spacing:1px;text-transform:uppercase;padding:4px 9px;border-radius:7px;border:1px solid currentColor;margin-bottom:10px}
.st.ok{color:var(--up)}.st.wip{color:var(--v3)}.st.demo{color:#d08a52}
.ac-case h3{font:800 20px 'Space Grotesk',sans-serif;letter-spacing:-.3px;color:var(--t1)}
.ac-case p{color:var(--t2);font-size:14.5px;margin-top:6px}
.ac-bento .big{grid-row:1/3}
.ac-bento .big .img{flex:1;min-height:420px;display:grid;place-items:center;background:radial-gradient(circle at 50% 40%,rgba(212,175,55,.16),#0c0b08 70%)}
.ac-bento .big .img img{width:210px;height:auto;border-radius:26px;border:6px solid #1b1813;box-shadow:0 30px 60px -20px rgba(0,0,0,.9)}
.ac-bento .big:hover .img img{transform:translateY(-4px)}
.ac-bento .w .img{height:200px}
.ac-more{display:inline-flex;align-items:center;gap:8px;margin-top:22px;color:var(--v3);font-weight:600;text-decoration:none}
.ac-more:hover{color:var(--t1)}

/* ---------- méthode : frise (A, B) ---------- */
.ac-steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:40px}
.ac-steps::before{content:"";position:absolute;left:22px;right:22px;top:21px;height:2px;background:var(--grad);transform-origin:left;transform:scaleX(0);transition:transform 1.4s cubic-bezier(.2,.8,.2,1) .2s}
.ac-steps.seen::before{transform:scaleX(1)}
.ac-step{position:relative}
.ac-step i{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;background:#0d0b07;border:2px solid var(--v);font:800 15px 'Space Grotesk',sans-serif;font-style:normal;color:var(--v3);position:relative;z-index:1}
.ac-step b{display:block;margin-top:16px;font:800 18px 'Space Grotesk',sans-serif}
.ac-step p{color:var(--t2);font-size:14.5px;margin-top:4px}

/* ---------- promesses (A) ---------- */
.ac-vow{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:30px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.ac-vow div{padding:28px 26px 28px 0}
.ac-vow div+div{padding-left:26px;border-left:1px solid var(--line)}
.ac-vow b{display:block;font:900 23px/1.15 'Space Grotesk',sans-serif;letter-spacing:-.4px}
.ac-vow p{color:var(--t2);font-size:14.5px;margin-top:8px}

/* ---------- appel final ---------- */
.ac-final{margin:20px 0 70px;border-radius:28px;padding:54px 48px;text-align:center;border:1px solid rgba(212,175,55,.3);
  background:radial-gradient(120% 140% at 50% 0%,rgba(212,175,55,.16),rgba(14,12,8,.6) 60%)}
.ac-final .ac-h2{max-width:20ch;margin:0 auto}
.ac-final p{color:var(--t2);margin:12px auto 0;max-width:52ch}
.ac-final .ac-btns{justify-content:center}


/* ---------- Réalisations : filtres + mur ---------- */
.ac-filters{display:flex;gap:8px;flex-wrap:wrap;margin:34px 0 22px}
.ac-filters button{border:1px solid var(--line);background:rgba(246,239,223,.03);color:var(--t2);padding:9px 16px;border-radius:100px;font:600 14px Inter,sans-serif;cursor:pointer;transition:background .2s,border-color .2s,color .2s}
.ac-filters button:hover{color:var(--t1);border-color:rgba(212,175,55,.45)}
.ac-filters button small{font:700 11px 'JetBrains Mono',monospace;color:var(--t3);margin-left:6px}
.ac-filters button[aria-pressed="true"]{border-color:var(--v);color:var(--t1);background:rgba(212,175,55,.12)}
.ac-wall{columns:3 300px;column-gap:16px}
.ac-wall .ac-case{break-inside:avoid;margin-bottom:16px;opacity:0;transform:translateY(18px)}
.play .ac-wall .ac-case{opacity:1;transform:none;animation:acWall .7s cubic-bezier(.2,.8,.2,1) backwards;animation-delay:calc(1.1s + var(--i,0) * 90ms)}
.ac-wall .ac-case[hidden]{display:none}
.ac-wall .h1 .img{height:180px}.ac-wall .h2 .img{height:260px}.ac-wall .h3 .img{height:360px}
.ac-wall .phone .img{display:grid;place-items:center;background:radial-gradient(circle at 50% 40%,rgba(212,175,55,.16),#0c0b08 70%)}
.ac-wall .phone .img img{width:150px;height:auto;border-radius:22px;border:5px solid #1b1813}
.ac-case .pb{margin-top:10px;font-size:13.5px;color:rgba(246,239,223,.6);line-height:1.5}
.ac-case .pb b{color:var(--t2);font-weight:600}
.ac-metiers{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:30px;border-top:1px solid var(--line)}
.ac-metiers a{padding:24px 22px 8px 0;text-decoration:none;color:var(--t1)}
.ac-metiers a+a{padding-left:22px;border-left:1px solid var(--line)}
.ac-metiers b{font:800 19px 'Space Grotesk',sans-serif;display:block}
.ac-metiers span{display:block;color:var(--t2);font-size:14px;margin-top:4px}
.ac-metiers em{display:inline-block;margin-top:10px;font-style:normal;color:var(--v3);font-weight:700;font-size:13.5px}
.ac-metiers a.tr em{color:var(--up)}
.ac-metiers a:hover b{color:var(--v3)}.ac-metiers a.tr:hover b{color:var(--up)}
.hero.ac-hero-c{padding:64px 0 10px;text-align:left}
.ac-hero-c h1{font-size:clamp(40px,5.4vw,70px)}
.ac-hero-c .hero-sub{margin:18px 0 0;max-width:560px}
.hero.ac-hero-c .hero-btns{justify-content:flex-start}

/* ---------- Logiciels & assistants IA ---------- */
.ac-collage.duo .s1{width:86%;height:300px;left:0;top:20px;bottom:auto}
.ac-collage.duo .s3{right:2%;top:110px}
.ac-kinds{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:36px}
.ac-kind{border:1px solid var(--line);border-radius:20px;padding:24px 22px;background:linear-gradient(160deg,rgba(212,175,55,.07),rgba(26,22,14,.4) 55%)}
.ac-kind svg{width:30px;height:30px;color:var(--v3)}
.ac-kind b{display:block;margin-top:14px;font:800 18px 'Space Grotesk',sans-serif;letter-spacing:-.2px}
.ac-kind p{color:var(--t2);font-size:14.5px;margin-top:6px}
.ac-study{display:grid;grid-template-columns:1.05fr .95fr;gap:0;margin-top:22px;border:1px solid var(--line);border-radius:26px;overflow:hidden;background:var(--card);scroll-margin-top:90px}
.ac-study .img{position:relative;min-height:380px;background:radial-gradient(circle at 50% 40%,rgba(212,175,55,.16),#0c0b08 70%);display:grid;place-items:center;overflow:hidden}
.ac-study .img img{display:block;width:100%;height:100%;object-fit:cover}
.ac-study .img.phone img{width:200px;height:auto;border-radius:26px;border:6px solid #1b1813;box-shadow:0 30px 60px -20px rgba(0,0,0,.9)}
.ac-study .txt{padding:34px 34px 32px}
.ac-study h3{font:900 28px/1.1 'Space Grotesk',sans-serif;letter-spacing:-.6px;margin-top:4px}
.ac-study .st{display:inline-block;font:800 10.5px 'JetBrains Mono',monospace;letter-spacing:1px;text-transform:uppercase;padding:4px 9px;border-radius:7px;border:1px solid currentColor}
.ac-study dl{margin-top:18px;display:grid;gap:14px}
.ac-study dt{font:800 11px 'JetBrains Mono',monospace;letter-spacing:1.6px;text-transform:uppercase;color:var(--v3)}
.ac-study dd{color:var(--t2);font-size:15px;margin-top:3px}
.ac-study .note{margin-top:18px;font-size:13px;color:var(--t3)}
.ac-study.rev{grid-template-columns:.95fr 1.05fr}
.ac-study.rev .img{order:2}
.ac-duo{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:18px}
.ac-duo .ac-case .img{height:200px}
.ac-faq{margin-top:30px;border-top:1px solid var(--line)}
.ac-faq details{border-bottom:1px solid var(--line)}
.ac-faq summary{list-style:none;cursor:pointer;padding:22px 40px 22px 0;position:relative;font:800 19px 'Space Grotesk',sans-serif;letter-spacing:-.2px}
.ac-faq summary::-webkit-details-marker{display:none}
.ac-faq summary:hover{color:var(--v3)}
.ac-faq summary::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);font:400 26px Inter,sans-serif;color:var(--v3);transition:transform .25s}
.ac-faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.ac-faq details p{color:var(--t2);font-size:15px;padding:0 0 22px;max-width:70ch}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .ac-hero .ctn{grid-template-columns:1fr}
  .ac-collage{height:420px;max-width:620px;width:100%}
  .ac-steps{grid-template-columns:1fr 1fr;row-gap:30px}
  .ac-steps::before{display:none}
  .ac-metiers,.ac-kinds{grid-template-columns:1fr 1fr}
  .ac-metiers a:nth-child(3){padding-left:0;border-left:0}
  .ac-study,.ac-study.rev{grid-template-columns:1fr}
  .ac-study.rev .img{order:0}
  .ac-study .img{min-height:300px}
}
@media (max-width:760px){
  .hero.ac-hero,.hero.ac-hero-c{padding-top:40px}
  .ac-collage{height:330px}
  .ac-collage .s2{height:190px;width:94%}.ac-collage .s1{height:130px;width:62%}
  .ac-collage .s3{width:118px;height:256px;right:3%;top:62px}
  .ac-collage.duo .s1{height:210px;width:90%;top:10px}
  .ac-collage.duo .s3{top:90px}
  .ac-univers,.ac-bento,.ac-vow,.ac-duo,.ac-kinds{grid-template-columns:1fr}
  .ac-bento .big{grid-row:auto}.ac-bento .big .img{height:360px}
  .ac-vow div,.ac-vow div+div{padding:22px 0;border-left:0}
  .ac-vow div+div{border-top:1px solid var(--line)}
  .ac-steps,.ac-metiers{grid-template-columns:1fr}
  .ac-metiers a,.ac-metiers a+a{padding:20px 0;border-left:0}
  .ac-metiers a+a{border-top:1px solid var(--line)}
  .ac-final{padding:38px 22px}
  .ac-u{padding:24px 20px}
  .ac-sec{padding:60px 0}
  .ac-study .txt{padding:26px 22px}
}
@media (prefers-reduced-motion:reduce){
  .ac-shot,.ac-wall .ac-case{opacity:1;transform:none;animation:none!important}
  .ac-steps::before{transform:none}
}
.ac-study .note{text-align:left;padding:0;font:13px/1.5 Inter,system-ui,sans-serif;color:rgba(246,239,223,.6)}
.ac-shotsvg svg{display:block;width:100%;height:100%}