/* À propos — header */
.page>section.ah{position:relative;overflow:hidden;isolation:isolate;margin-inline:clamp(6px,.8vw,12px);border-radius:0 0 var(--r-sec) var(--r-sec);background:radial-gradient(60% 50% at 50% 38%,rgba(60,84,150,.28),transparent 70%),var(--ink);color:#FEFEFE;padding:calc(var(--safe-top) + clamp(112px,10vw,132px)) 0 0}
.ah-bg{position:absolute;inset:0;z-index:-1;pointer-events:none;overflow:hidden}
.ah-bg i{position:absolute;top:-30%;height:150%;border-radius:50%;filter:blur(28px);transform-origin:top center;background:linear-gradient(180deg,rgba(120,160,255,.32),rgba(80,120,230,.08) 60%,transparent);animation:ahRay 14s ease-in-out infinite alternate}
.ah-bg .r1{left:4%;width:5%;rotate:-28deg;opacity:.8}
.ah-bg .r2{left:12%;width:3%;rotate:-26deg;opacity:.55;animation-delay:-4s}
.ah-bg .r3{left:20%;width:7%;rotate:-30deg;opacity:.4;animation-delay:-8s}
.ah-bg .r4{left:-4%;width:9%;rotate:-24deg;opacity:.35;animation-delay:-2s}
.ah-bg .glow{position:absolute;left:-10%;top:-20%;width:55%;aspect-ratio:1;border-radius:50%;background:radial-gradient(closest-side,rgba(70,110,230,.28),transparent)}
@keyframes ahRay{to{opacity:.25;translate:3% 0}}
.ah-in{position:relative;max-width:calc(1400px + 2 * var(--gut));margin:0 auto;padding:0 var(--gut);display:flex;flex-direction:column;align-items:center;text-align:center}
.ah-tag{display:inline-flex;align-items:center;gap:14px;height:40px;padding:0 22px 0 18px;border-radius:999px;border:1px solid rgba(160,185,240,.28);background:rgba(20,32,72,.5);font-family:var(--font-tech);font-size:12.5px;font-weight:500;letter-spacing:.24em;text-transform:uppercase;color:#E4EAF8}
.ah-tag i{width:9px;height:9px;border-radius:50%;background:#4C8DF6;box-shadow:0 0 12px 2px rgba(76,141,246,.6)}
.ah-h{margin:0;display:flex;flex-direction:column;align-items:center;font-family:var(--font-identity);font-weight:600;font-size:clamp(36px,4.6vw,68px);line-height:1.04;letter-spacing:-.035em;color:#FEFEFE}
.ah-h span{display:block;white-space:nowrap}
.ah-h>span:first-child{font-weight:800;font-size:clamp(34px,4.6vw,88px);line-height:1.04;letter-spacing:-.045em}
.ah-light .ah-h>span:first-child{color:#0E1633}
.ah-h>span:nth-child(2){font-weight:400;font-size:calc(.8 * clamp(34px,4.6vw,88px));line-height:1.04;letter-spacing:-.04em}
.ah-light .ah-h>span:nth-child(2){color:#0E1633}
@media (max-width:640px){.ah-h span{white-space:normal;text-wrap:balance}}
.ah-sub{margin:clamp(18px,2vw,26px) 0 0;font-size:clamp(16px,1.45vw,20px);line-height:1.45;color:#A9BBE4;text-wrap:balance}
@media (max-width:640px){.ah-sub br{display:none}}
.ah-ctas{display:flex;flex-wrap:wrap;justify-content:center;gap:16px;margin-top:clamp(26px,2.8vw,40px)}
.ah-btn{white-space:nowrap;display:inline-flex;align-items:center;justify-content:center;gap:14px;height:52px;padding:0 28px;border-radius:10px;font-size:16px;font-weight:600;letter-spacing:-.01em;text-decoration:none;transition:background .3s var(--ease),border-color .3s var(--ease),transform .3s var(--expo),box-shadow .3s var(--ease)}
.ah-btn .ico{transition:transform .4s var(--expo)}
.ah-btn.y{background:var(--sig);color:#121833;box-shadow:0 12px 30px -14px rgba(228,232,129,.55)}
.ah-btn.y:hover{color:#121833;background:#ECEF9A;transform:translateY(-1px)}
.ah-btn.y:hover .ico{transform:translateX(4px)}
.ah-btn.o{border:1px solid rgba(160,185,240,.4);background:rgba(16,26,62,.6);color:#FEFEFE}
.ah-btn.o:hover{color:#FEFEFE;border-color:rgba(182,209,249,.75);background:rgba(30,46,100,.6)}
.ah-btn:active{transform:scale(.98)}
.ah-btn:focus-visible{outline:3px solid var(--sky);outline-offset:3px}
.ah-feat{list-style:none;margin:clamp(32px,3.4vw,48px) 0 0;padding:0;display:flex;flex-wrap:wrap;justify-content:center;gap:16px clamp(36px,5vw,80px)}
.ah-feat li{display:flex;align-items:center;gap:18px;font-size:clamp(15px,1.3vw,18px);letter-spacing:.02em;color:#D9E1F3}
.ah-feat li.b .ico{color:#5B97F7}
.ah-feat li.y .ico{color:var(--sig)}
.ah-cards{display:grid;grid-template-columns:minmax(0,.52fr) minmax(0,1fr);gap:clamp(12px,1.4vw,20px);width:100%;margin-top:clamp(36px,4vw,56px);text-align:left;scroll-margin-top:100px}
.ah-card{position:relative;overflow:hidden;height:clamp(300px,23vw,340px);padding:clamp(26px,2.4vw,36px) clamp(24px,2.4vw,36px) 0;border-radius:22px 22px 0 0;background:linear-gradient(180deg,rgba(28,40,84,.72),rgba(16,24,56,.6));box-shadow:inset 0 1px 0 rgba(182,209,249,.16),inset 0 0 0 1px rgba(160,185,240,.12);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}
.ah-card h2{margin:0;font-family:var(--font-identity);font-weight:500;font-size:clamp(21px,1.8vw,27px);letter-spacing:-.025em;color:#FEFEFE}
.ah-card p{margin:10px 0 0;font-size:clamp(14px,1.2vw,17px);line-height:1.45;color:#93A6D4}
.ah-stair{position:relative;margin-top:clamp(20px,2vw,28px);height:180px}
.ah-stair .nd{position:absolute;left:calc(var(--k) * clamp(56px,6.4vw,94px) + 18px);top:calc(var(--k) * 56px);display:flex;align-items:center;gap:16px;width:178px;height:54px;padding:0 18px 0 12px;border-radius:12px;background:rgba(30,42,82,.85);box-shadow:inset 0 0 0 1px rgba(160,185,240,.16),0 12px 24px -14px rgba(0,0,0,.6);font-size:16px;color:#FEFEFE}
.ah-stair .nd b{font-weight:500}
.ah-stair .ib{display:grid;place-items:center;width:34px;height:34px;border-radius:9px}
.ah-stair .b .ib{background:#3B7BF0;color:#FEFEFE}
.ah-stair .y .ib{color:var(--sig)}
.ah-stair .g .ib{color:#A6E37A}
.ah-stair .cn{position:absolute;right:100%;bottom:50%;width:clamp(30px,2.6vw,38px);height:38px;margin-right:4px;border-left:1.5px solid rgba(160,185,240,.4);border-bottom:1.5px solid rgba(160,185,240,.4);border-bottom-left-radius:10px}
.ah-stair .cn::after{content:"";position:absolute;right:-5px;bottom:-5px;width:8px;height:8px;border-radius:50%;background:#5B97F7;box-shadow:0 0 10px rgba(91,151,247,.8)}
.ah-stair .g .cn::after{background:#A6E37A;box-shadow:0 0 10px rgba(166,227,122,.7)}
.rv.in .ah-stair .nd{animation:ahIn .9s var(--expo) both;animation-delay:calc(.4s + var(--k) * .18s)}
@keyframes ahIn{from{opacity:0;transform:translate(-14px,10px)}}
.ah-win{margin-top:clamp(20px,2.6vw,40px);border-radius:16px 16px 0 0;background:rgba(14,22,52,.85);box-shadow:inset 0 0 0 1px rgba(160,185,240,.16);height:400px;padding:0 14px}
.ah-win .bar{display:flex;align-items:flex-end;gap:10px;height:44px;padding:0 6px}
.ah-win .dots{display:flex;gap:7px;align-self:center}.ah-win .dots i{width:10px;height:10px;border-radius:50%}
.ah-win .dots i:nth-child(1){background:#F05A5A}.ah-win .dots i:nth-child(2){background:#F2C94C}.ah-win .dots i:nth-child(3){background:#4CC774}
.ah-win .tab{display:flex;align-items:center;gap:10px;height:32px;width:clamp(120px,12vw,156px);margin-left:14px;padding:0 14px;border-radius:9px 9px 0 0;background:rgba(32,46,92,.9);box-shadow:inset 0 1px 0 rgba(182,209,249,.14);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12.5px;color:#D9E1F3}
.ah-win .tab .ico{color:#5B97F7}
.ah-win .pl{display:grid;place-items:center;width:32px;height:28px;border-radius:8px 8px 0 0;color:#7F90BA;box-shadow:inset 0 0 0 1px rgba(160,185,240,.12)}
.ah-win .more{display:flex;gap:4px;margin-left:auto;align-self:center}.ah-win .more i{width:4px;height:4px;border-radius:50%;background:#7F90BA}
.ah-win .body{display:grid;grid-template-columns:minmax(0,.4fr) minmax(0,1fr);gap:clamp(14px,1.6vw,26px);height:calc(100% - 44px);padding:16px;border-radius:12px 12px 0 0;background:rgba(20,30,66,.8);box-shadow:inset 0 0 0 1px rgba(160,185,240,.1)}
.ah-win .code{display:flex;flex-direction:column;gap:11px;padding:6px 0 0 6px;min-width:0}
.ah-win .ln{display:flex;align-items:center;gap:20px;height:4px}
.ah-win .ln .g{width:4px;height:4px;border-radius:50%;background:rgba(160,185,240,.25);flex:none}
.ah-win .ln .t{display:flex;gap:8px;min-width:0}
.ah-win .ln b{display:block;height:4px;max-width:100%;border-radius:2px;background:rgba(160,185,240,.32);transform-origin:left}
.ah-win .ln .t.b b:first-child{background:#4C8DF6}.ah-win .ln .t.y b:first-child{background:var(--sig)}.ah-win .ln .t.g b:first-child{background:#A6E37A}
.rv.in .ah-win .ln b{animation:ahType .8s var(--expo) both;animation-delay:calc(.5s + var(--k) * .08s)}
@keyframes ahType{from{transform:scaleX(0)}}
.ah-win .mods{display:flex;align-items:flex-start;min-width:0}
.ah-win .md{flex:1;min-width:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;height:clamp(92px,7.4vw,104px);padding:0 8px;border-radius:10px;background:rgba(26,38,80,.9);box-shadow:inset 0 0 0 1px rgba(160,185,240,.18);font-size:clamp(11.5px,1vw,13.5px);color:#E4EAF8;text-align:center;transition:box-shadow .5s var(--ease)}
.ah-win .md span{white-space:nowrap}
.ah-win .md .ico{color:#D9E1F3}
.ah-win .md .u{display:block;width:30px;height:3px;border-radius:2px;background:#4C8DF6}
.ah-win .md.g .u{background:#A6E37A}
.ah-win .md{animation:ahGlow 6s var(--ease) infinite;animation-delay:calc(var(--k) * 2s)}
@keyframes ahGlow{0%,20%,100%{box-shadow:inset 0 0 0 1px rgba(160,185,240,.18)}8%{box-shadow:inset 0 0 0 1px rgba(91,151,247,.7),0 0 24px -6px rgba(91,151,247,.6)}}
.ah-win .lk{position:relative;flex:0 0 clamp(16px,1.8vw,26px);align-self:center;height:1.5px;margin-top:calc(clamp(92px,7.4vw,104px) * -.5 + 50%);background:rgba(160,185,240,.4)}
.ah-win .lk{margin-top:0;align-self:flex-start;top:calc(clamp(92px,7.4vw,104px) / 2)}
.ah-win .lk::before,.ah-win .lk::after{content:"";position:absolute;top:-3.5px;width:7px;height:7px;border-radius:50%;box-sizing:border-box;border:1.5px solid rgba(160,185,240,.7);background:#14204A}
.ah-win .lk::before{left:-3px}.ah-win .lk::after{right:-3px}
.ah-win .lk i{position:absolute;top:-1.5px;left:0;width:4px;height:4px;border-radius:50%;background:#5B97F7;box-shadow:0 0 8px #5B97F7;animation:ahFlow 2s linear infinite}
@keyframes ahFlow{to{left:calc(100% - 4px)}}
@media (max-width:1100px){.ah-card{height:auto;min-height:0}.ah-card.l{border-radius:22px}.ah-card.l .ah-stair{margin-bottom:24px}.ah-win{height:220px}.ah-win .body{grid-template-columns:minmax(0,1fr)}.ah-win .code{display:none}}
@media (max-width:1100px){.ah-cards{grid-template-columns:minmax(0,1fr)}.ah-card p br{display:none}.ah-feat{display:grid;grid-template-columns:repeat(4,auto);gap:16px clamp(20px,3.4vw,40px)}}
@media (max-width:760px){.ah-feat{grid-template-columns:repeat(2,auto)}}
@media (max-width:900px){.ah-card{height:auto;padding-bottom:0}.ah-card.l{border-radius:22px}.ah-card.l .ah-stair{margin-bottom:24px}.ah-win{height:200px}}
@media (max-width:560px){.ah-win .mods{flex-direction:column;gap:10px}.ah-win .lk{display:none}.ah-win{height:auto;padding-bottom:14px}.ah-win .body{height:auto}.ah-stair .nd{left:calc(var(--k) * 40px);width:160px}}
@media (min-width:1101px){.page>section.ah{padding-top:calc(var(--safe-top) + clamp(108px,10vw,120px))}.ah-cards{margin-top:clamp(48px,4.4vw,72px)}.ah-card{height:clamp(420px,33vw,500px)}.ah-stair{margin-top:clamp(36px,3vw,52px);height:280px}.ah-stair .nd{top:calc(var(--k) * clamp(64px,5.4vw,84px));height:60px}.ah-win{height:520px;margin-top:clamp(28px,3vw,48px)}}
/* light mode (same ground as Agents IA / Contact) */
.page>section.ah.ah-light{min-height:100svh;box-sizing:border-box;background:radial-gradient(60% 60% at 30% 0%,#FDFDFE,transparent 70%),#F3F5F9;color:#151B33}
@media (min-width:1101px){.page>section.ah.ah-light{display:flex;flex-direction:column;height:100svh;min-height:760px}.ah-light .ah-in{flex:1;min-height:0;width:100%;box-sizing:border-box}.ah-light .ah-cards{flex:1;min-height:0;grid-template-rows:minmax(0,1fr)}.ah-light .ah-card{height:auto;min-height:0}}
.ah-light .ah-cards{position:relative}
.ah-light .ah-cards::after{content:"";position:absolute;left:-4px;right:-4px;bottom:0;z-index:3;height:clamp(110px,10vw,180px);pointer-events:none;background:linear-gradient(180deg,rgba(243,245,249,0),rgba(243,245,249,.85) 70%,#F3F5F9);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);-webkit-mask:linear-gradient(180deg,transparent,#000 70%);mask:linear-gradient(180deg,transparent,#000 70%)}
.ah-light .ah-tag{border:0;background:linear-gradient(180deg,#FEFEFE,#F3F5F9);box-shadow:0 0 0 1px rgba(34,43,67,.06),0 8px 22px -10px rgba(34,43,67,.22),inset 0 1px 0 #FEFEFE;color:#3A4766}
.ah-light .ah-tag i{box-shadow:0 0 0 4px rgba(76,141,246,.16)}
.ah-light .ah-h{color:#151B33}
.ah-light .ah-sub{color:#6B7186}
.ah-light .ah-btn.y{box-shadow:0 12px 26px -14px rgba(150,155,40,.6),inset 0 0 0 1px rgba(34,43,67,.06)}
.ah-light .ah-btn.o{border:0;background:#FEFEFE;color:#151B33;box-shadow:inset 0 0 0 1px rgba(34,43,67,.12),0 6px 16px -10px rgba(34,43,67,.25)}
.ah-light .ah-btn.o:hover{color:#151B33;background:#FEFEFE;box-shadow:inset 0 0 0 1px rgba(34,43,67,.28),0 8px 18px -10px rgba(34,43,67,.3)}
.ah-light .ah-feat li{color:#3A4766}
.ah-light .ah-feat li.y .ico{color:#151B33}
.ah-light .ah-card{background:linear-gradient(180deg,rgba(254,254,254,.85),rgba(254,254,254,.6));box-shadow:inset 0 1px 0 #FEFEFE,0 0 0 1px rgba(34,43,67,.07),0 30px 60px -36px rgba(34,43,67,.3)}
.ah-light .ah-card h2{color:#151B33}
.ah-light .ah-card p{color:#6B7186}
.ah-light .ah-stair .nd{background:#FEFEFE;color:#151B33;box-shadow:0 0 0 1px rgba(34,43,67,.08),0 12px 24px -14px rgba(34,43,67,.3)}
.ah-light .ah-stair .y .ib{background:#F4F5D2;color:#151B33}
.ah-light .ah-stair .g .ib{background:#E6F6DA;color:#2F6B2A}
.ah-light .ah-stair .cn{border-color:rgba(34,43,67,.22)}
.ah-light .ah-stair .g .cn::after{background:#7CC456;box-shadow:0 0 8px rgba(124,196,86,.6)}
.ah-light .ah-win{background:#ECEFF5;box-shadow:inset 0 0 0 1px rgba(34,43,67,.08)}
.ah-light .ah-win .tab{background:#FEFEFE;box-shadow:0 0 0 1px rgba(34,43,67,.06);color:#2A3350}
.ah-light .ah-win .pl{color:#6B7186;box-shadow:inset 0 0 0 1px rgba(34,43,67,.1)}
.ah-light .ah-win .more i{background:#9AA3BA}
.ah-light .ah-win .body{background:#FEFEFE;box-shadow:inset 0 0 0 1px rgba(34,43,67,.06)}
.ah-light .ah-win .ln .g{background:rgba(34,43,67,.18)}
.ah-light .ah-win .ln b{background:rgba(34,43,67,.14)}
.ah-light .ah-win .ln .t.y b:first-child{background:#C9CD5A}.ah-light .ah-win .ln .t.g b:first-child{background:#7CC456}
.ah-light .ah-win .md{background:#F6F7FA;box-shadow:inset 0 0 0 1px rgba(34,43,67,.1);color:#2A3350;animation-name:ahGlowL}
.ah-light .ah-win .md .ico{color:#3A4766}
.ah-light .ah-win .md.g .u{background:#7CC456}
@keyframes ahGlowL{0%,20%,100%{box-shadow:inset 0 0 0 1px rgba(34,43,67,.1)}8%{box-shadow:inset 0 0 0 1.5px rgba(91,151,247,.7),0 0 24px -6px rgba(91,151,247,.5)}}
.ah-light .ah-win .lk{background:rgba(34,43,67,.2)}
.ah-light .ah-win .lk::before,.ah-light .ah-win .lk::after{border-color:rgba(34,43,67,.35);background:#FEFEFE}
@media (prefers-reduced-motion:reduce){.ah *{animation:none!important}}
html.static .ah *{animation:none!important}

.ah-cards>.ct-card{z-index:4;text-align:left}
.ah-cards>.ct-card.ah-fx-l{left:calc(-1 * clamp(20px,4vw,84px));right:auto;top:-140px;bottom:auto;width:270px;rotate:-12deg;--dl:.8s}
.ah-cards>.ct-card.ah-fx-r{right:calc(-1 * clamp(36px,6vw,124px));left:auto;top:-34px;bottom:auto;rotate:12deg;--dl:1s}
@media (max-width:1100px){.ah-cards>.ct-card{display:none}}

/* AI geometry backdrop */
.ah.ah-light{isolation:isolate}
.ah-geo{position:absolute;inset:0;z-index:-1;pointer-events:none;overflow:hidden;--ln:rgba(34,43,67,.09);--lt:#5B8DF7;-webkit-mask:radial-gradient(120% 95% at 50% 45%,#000 55%,transparent 100%);mask:radial-gradient(120% 95% at 50% 45%,#000 55%,transparent 100%)}
.ah-geo .gl{position:absolute;display:block;background:var(--ln);overflow:hidden}
.ah-geo .h{left:0;right:0;height:1px}.ah-geo .h1{top:24%}.ah-geo .h2{top:64%}.ah-geo .h3{top:82%;left:40%;opacity:.7}
.ah-geo .v{top:0;bottom:0;width:1px}.ah-geo .v1{left:8%}.ah-geo .v2{left:92%}.ah-geo .v3{left:22%;top:12%;opacity:.7}.ah-geo .v4{left:78%;bottom:10%;opacity:.7}
.ah-geo .d{left:-10%;top:58%;width:130%;height:1px;transform:rotate(-4deg);transform-origin:0 50%;opacity:.8}
.ah-geo .gl b{position:absolute;display:block}
.ah-geo .h b{top:0;left:0;width:18%;height:1px;background:linear-gradient(90deg,transparent,var(--lt) 60%,#B6D1F9 85%,transparent);animation:ahGeoX 7s cubic-bezier(.45,0,.35,1) infinite}
.ah-geo .h2 b{animation-duration:9s;animation-delay:-3.5s;animation-direction:reverse}
.ah-geo .v b{left:0;top:0;width:1px;height:22%;background:linear-gradient(180deg,transparent,var(--lt) 60%,#B6D1F9 85%,transparent);animation:ahGeoY 8s cubic-bezier(.45,0,.35,1) infinite;animation-delay:-1.5s}
.ah-geo .v2 b{animation-duration:10s;animation-delay:-6s}
.ah-geo .gr{position:absolute;left:14%;right:14%;top:52%;bottom:-40%;border:1px solid var(--ln);border-radius:56px;overflow:hidden;background:linear-gradient(180deg,rgba(255,255,255,.35),rgba(255,255,255,0) 40%)}
.ah-geo .gr.g2{left:17%;right:17%;top:56%;border-radius:44px;border-color:rgba(34,43,67,.05);background:none}
.ah-geo .gr b{position:absolute;top:-1px;left:0;width:30%;height:2px;background:linear-gradient(90deg,transparent,#3E6FF0 55%,#8EB5FA 80%,transparent);filter:drop-shadow(0 0 6px rgba(91,141,247,.7));animation:ahGeoX 6s cubic-bezier(.45,0,.35,1) infinite;animation-delay:-2s}
.ah-geo .gx{position:absolute;width:15px;height:15px;margin:-7px 0 0 -7px}
.ah-geo .gx::before,.ah-geo .gx::after{content:"";position:absolute;left:50%;top:50%;background:#3A4766;opacity:.55}
.ah-geo .gx::before{width:15px;height:1.2px;margin:-.6px 0 0 -7.5px}.ah-geo .gx::after{width:1.2px;height:15px;margin:-7.5px 0 0 -.6px}
.ah-geo .gx.sm{transform:scale(.7)}.ah-geo .gx.sm::before,.ah-geo .gx.sm::after{opacity:.35}
.ah-geo .gx:nth-of-type(odd){animation:ahGeoTw 5s ease-in-out infinite}
.ah-geo .gbl{position:absolute;right:6%;bottom:6%;width:46%;height:36%;border-radius:50%;background:radial-gradient(closest-side,rgba(120,150,255,.38),rgba(170,140,255,.18) 50%,transparent);filter:blur(30px)}
@keyframes ahGeoX{0%{transform:translateX(-100%);opacity:0}12%{opacity:1}88%{opacity:1}100%{transform:translateX(560%);opacity:0}}
@keyframes ahGeoY{0%{transform:translateY(-100%);opacity:0}12%{opacity:1}88%{opacity:1}100%{transform:translateY(460%);opacity:0}}
@keyframes ahGeoTw{0%,100%{opacity:1}50%{opacity:.45}}
@media (prefers-reduced-motion:reduce){.ah-geo b,.ah-geo .gx{animation:none!important}.ah-geo b{opacity:0}}
html.static .ah-geo b{animation:none;opacity:0}
@media (max-width:760px){.ah-geo .gr{left:4%;right:4%;border-radius:32px}.ah-geo .v1{left:4%}.ah-geo .v2{left:96%}}