/* =====================================================================
   FORMATION SKETCHNOTE — "AURORA" edition
   Insuffle Académie brand palette (extraite du thème officiel) :
     aubergine  #1A0518   violet  #8E2183   profond #4A0E44 / #6B1563
     or         #FFD466 / #FFB300
   Dark editorial + aurora gradients + parallax + motion
   ===================================================================== */

:root{
  --plum:        #160314;   /* base background */
  --plum-2:      #210720;   /* panel */
  --plum-3:      #2c0a2a;   /* raised panel */
  --violet:      #8E2183;   /* signature */
  --violet-2:    #6B1563;
  --violet-deep: #4A0E44;
  --magenta:     #C13BAE;   /* brighter glow */
  --gold:        #FFD466;
  --gold-2:      #FFB300;

  --text:    #F4E9F2;
  --dim:     #CBB2CC;
  --faint:   #957C97;
  --line:    rgba(255,212,102,.16);
  --glass:   rgba(255,255,255,.04);
  --glass-bd:rgba(214,150,205,.18);

  --display:"Bricolage Grotesque", system-ui, sans-serif;
  --body:"Hanken Grotesque", system-ui, sans-serif;
  --hand:"Caveat", cursive;

  --gutter: clamp(20px, 5vw, 96px);
  --maxw: 1320px;
  --ease: cubic-bezier(.22,1,.36,1);

  --par: 1; /* parallax intensity multiplier (tweakable) */
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto;}}
body{
  margin:0;font-family:var(--body);color:var(--text);background:var(--plum);
  font-size:18px;line-height:1.62;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;color:inherit;}
::selection{background:var(--gold);color:var(--plum);}

/* ---------------- AURORA BACKGROUND ---------------- */
.aurora{position:fixed;inset:0;z-index:-2;overflow:hidden;pointer-events:none;background:
  radial-gradient(120% 80% at 50% -10%, #2a0726 0%, var(--plum) 55%);}
.aurora span{position:absolute;border-radius:50%;filter:blur(70px);opacity:.55;mix-blend-mode:screen;
  will-change:transform;}
.aurora .b1{width:52vw;height:52vw;left:-10vw;top:-8vw;background:radial-gradient(circle,var(--violet),transparent 68%);animation:drift1 26s var(--ease) infinite alternate;}
.aurora .b2{width:46vw;height:46vw;right:-12vw;top:6vw;background:radial-gradient(circle,var(--magenta),transparent 66%);animation:drift2 32s var(--ease) infinite alternate;opacity:.4;}
.aurora .b3{width:40vw;height:40vw;left:20vw;top:40vh;background:radial-gradient(circle,var(--violet-2),transparent 70%);animation:drift3 30s var(--ease) infinite alternate;}
.aurora .b4{width:34vw;height:34vw;right:4vw;bottom:-10vw;background:radial-gradient(circle,var(--gold-2),transparent 72%);opacity:.16;animation:drift1 38s var(--ease) infinite alternate;}
@keyframes drift1{to{transform:translate(8vw,6vh) scale(1.15);}}
@keyframes drift2{to{transform:translate(-7vw,9vh) scale(1.1);}}
@keyframes drift3{to{transform:translate(6vw,-7vh) scale(1.2);}}
/* grain + noise veil */
.aurora::after{content:"";position:absolute;inset:0;opacity:.5;
  background:radial-gradient(140% 100% at 50% 120%, transparent 55%, var(--plum) 92%);}
.grain{position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.5;mix-blend-mode:soft-light;
  background-image:radial-gradient(rgba(255,255,255,.025) 1px, transparent 1px);background-size:3px 3px;}
body[data-aurora="off"] .aurora span{animation:none;}
body[data-aurora="off"] .aurora .b2,body[data-aurora="off"] .aurora .b4{opacity:.12;}

/* cursor glow */
.cursor-glow{position:fixed;top:0;left:0;width:520px;height:520px;border-radius:50%;z-index:0;
  transform:translate(-50%,-50%);pointer-events:none;will-change:transform;
  background:radial-gradient(circle, rgba(193,59,174,.16), transparent 62%);transition:opacity .4s;}
@media (hover:none){.cursor-glow{display:none;}}

/* scroll progress (gold nib line) */
.progress{position:fixed;top:0;left:0;height:3px;width:100%;z-index:80;transform-origin:0 50%;
  transform:scaleX(0);background:linear-gradient(90deg,var(--gold-2),var(--gold),var(--magenta));}

/* ---------------- TYPE ---------------- */
.eyebrow{font-family:var(--hand);font-weight:700;font-size:clamp(20px,2.2vw,28px);
  color:var(--gold);display:inline-flex;align-items:center;gap:.45em;line-height:1;}
h1,h2,h3{font-family:var(--display);font-weight:800;letter-spacing:-.025em;line-height:.96;margin:0;}
h1{font-size:clamp(38px,9vw,140px);}
h2{font-size:clamp(34px,5.4vw,76px);}
h3{font-size:clamp(20px,1.7vw,26px);font-weight:700;letter-spacing:-.01em;line-height:1.1;}
p{margin:0 0 1em;text-wrap:pretty;}
.lead{font-size:clamp(18px,1.5vw,23px);color:var(--dim);line-height:1.55;}
.gold{color:var(--gold);}
.grad{background:linear-gradient(100deg,var(--gold) 0%,#F08AD8 48%,var(--gold) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;background-size:200% auto;
  animation:shine 7s linear infinite;}
@keyframes shine{to{background-position:200% center;}}

.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:var(--gutter);}
section{position:relative;}
.block{padding:clamp(80px,11vw,160px) 0;}
.shead{max-width:50rem;margin-bottom:clamp(38px,5vw,68px);}
.shead .eyebrow{margin-bottom:16px;}
.shead p{margin-top:18px;}

/* draw-on underline */
.draw{position:relative;white-space:nowrap;}
.draw svg{position:absolute;left:-3%;width:106%;height:.5em;bottom:-.26em;overflow:visible;pointer-events:none;}
.draw svg path{fill:none;stroke:var(--gold);stroke-width:5;stroke-linecap:round;
  stroke-dasharray:var(--len,400);stroke-dashoffset:var(--len,400);transition:stroke-dashoffset 1s var(--ease) .15s;}
.in .draw svg path,.draw.in svg path{stroke-dashoffset:0;}

/* ---------------- BUTTONS (magnetic) ---------------- */
.btn{position:relative;display:inline-flex;align-items:center;gap:.6em;white-space:nowrap;
  font-family:var(--display);font-weight:700;font-size:17px;letter-spacing:-.01em;
  padding:16px 28px;border-radius:999px;border:1.5px solid transparent;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),background .3s;will-change:transform;}
.btn svg{width:18px;height:18px;}
.btn--gold{background:linear-gradient(120deg,var(--gold),var(--gold-2));color:var(--plum);
  box-shadow:0 8px 30px rgba(255,179,0,.28);}
.btn--gold:hover{box-shadow:0 14px 44px rgba(255,179,0,.42);}
.btn--glass{background:var(--glass);color:var(--text);border-color:var(--glass-bd);backdrop-filter:blur(10px);}
.btn--glass:hover{background:rgba(193,59,174,.16);border-color:var(--magenta);}
.btn .arr{transition:transform .3s var(--ease);}
.btn:hover .arr{transform:translateX(4px);}

/* ---------------- NAV ---------------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:70;display:flex;align-items:center;justify-content:space-between;
  gap:24px;padding:16px var(--gutter);transition:padding .3s,background .3s,box-shadow .3s;}
.nav.scrolled{background:rgba(22,3,20,.72);backdrop-filter:blur(16px) saturate(1.2);
  box-shadow:0 1px 0 var(--line);padding-top:11px;padding-bottom:11px;}
.nav__logo{display:flex;align-items:center;gap:12px;font-family:var(--display);font-weight:800;font-size:20px;white-space:nowrap;}
.nav__logo-img{height:38px;width:auto;display:block;}
.nav.scrolled .nav__logo-img{height:34px;transition:height .3s;}
.nav__mark{width:40px;height:40px;border-radius:12px;flex:none;display:grid;place-items:center;
  font-weight:800;font-size:22px;color:var(--plum);background:linear-gradient(135deg,var(--gold),var(--magenta));
  box-shadow:0 6px 20px rgba(193,59,174,.4);}
.nav__links{display:flex;gap:30px;align-items:center;}
.nav__links a{font-weight:600;font-size:16px;color:var(--dim);position:relative;padding:4px 0;transition:color .2s;}
.nav__links a::after{content:"";position:absolute;left:0;right:100%;bottom:-2px;height:2px;
  background:linear-gradient(90deg,var(--gold),var(--magenta));transition:right .3s var(--ease);}
.nav__links a:hover{color:var(--text);}
.nav__links a:hover::after,.nav__links a.active::after{right:0;}
.nav__links a.active{color:var(--text);}
.nav__cta{display:flex;align-items:center;gap:14px;}
.nav .btn{padding:11px 22px;font-size:15px;}
.nav__burger{display:none;width:46px;height:46px;border:1.5px solid var(--glass-bd);border-radius:12px;
  background:var(--glass);backdrop-filter:blur(8px);place-items:center;}
.nav__burger span,.nav__burger span::before,.nav__burger span::after{content:"";display:block;width:20px;height:2px;background:var(--text);border-radius:2px;position:relative;}
.nav__burger span::before{position:absolute;top:-6px;}.nav__burger span::after{position:absolute;top:6px;}
@media (max-width:920px){
  .nav__links{position:absolute;top:calc(100% + 8px);right:var(--gutter);left:var(--gutter);flex-direction:column;
    align-items:flex-start;gap:8px;background:rgba(33,7,32,.96);backdrop-filter:blur(18px);
    border:1px solid var(--glass-bd);border-radius:20px;padding:20px 24px;
    transform:translateY(-10px) scale(.98);opacity:0;visibility:hidden;transition:.3s var(--ease);}
  .nav__links.open{transform:none;opacity:1;visibility:visible;}
  .nav__links a{font-size:20px;}
  .nav__burger{display:grid;}
  .nav__cta .btn{display:none;}
}

/* ---------------- HERO ---------------- */
.hero{min-height:100svh;display:flex;flex-direction:column;justify-content:center;padding:140px 0 60px;position:relative;}
.hero__head{max-width:var(--maxw);margin:0 auto;padding-inline:var(--gutter);width:100%;}
.hero__row{max-width:var(--maxw);margin:clamp(26px,3.4vw,46px) auto 0;padding-inline:var(--gutter);width:100%;
  display:grid;grid-template-columns:1fr .82fr;gap:clamp(30px,4vw,66px);align-items:center;}
.hero__eyebrow{margin-bottom:20px;}
.hero h1{margin-bottom:26px;}
.hero h1 .line{display:block;overflow:hidden;}
.hero h1 .line span{display:inline-block;transform:translateY(110%);
  animation:rise .9s var(--ease) forwards;}
.hero h1 .line:nth-child(2) span{animation-delay:.12s;}
@keyframes rise{to{transform:none;}}
@media (prefers-reduced-motion:reduce){.hero h1 .line span{transform:none;animation:none;}}
.hero__lead{max-width:30em;margin-bottom:34px;}
.hero__cta{display:flex;flex-wrap:wrap;gap:16px;align-items:center;}
.hero__note{font-family:var(--hand);font-size:22px;color:var(--gold);display:flex;align-items:center;gap:10px;margin-top:28px;}

.hero__visual{position:relative;}
.hero__card{position:relative;border-radius:26px;overflow:hidden;border:1px solid var(--glass-bd);
  box-shadow:0 40px 90px -30px rgba(0,0,0,.8), 0 0 0 1px rgba(193,59,174,.1);
  background:#fff;will-change:transform;}
.hero__card img{width:100%;aspect-ratio:1024/648;object-fit:cover;background:#fff;}
.hero__card::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(160deg,transparent 72%,rgba(22,3,20,.14));}
.float{position:absolute;color:var(--gold);will-change:transform;z-index:3;filter:drop-shadow(0 6px 16px rgba(0,0,0,.4));}
.float svg{width:100%;height:100%;}
.hero__badge{position:absolute;z-index:4;display:grid;place-content:center;text-align:center;border-radius:50%;
  width:120px;height:120px;font-family:var(--display);line-height:1;background:linear-gradient(135deg,var(--gold),var(--gold-2));
  color:var(--plum);transform:rotate(-10deg);box-shadow:0 18px 40px rgba(255,179,0,.35);top:-22px;right:-18px;}
.hero__badge b{font-size:18px;font-weight:800;}.hero__badge span{font-size:11px;font-weight:700;letter-spacing:.08em;}

/* stats */
.hero__stats{max-width:var(--maxw);margin:clamp(48px,6vw,84px) auto 0;padding-inline:var(--gutter);
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.stat{padding:26px 24px;border-radius:20px;background:var(--glass);border:1px solid var(--glass-bd);
  backdrop-filter:blur(8px);position:relative;overflow:hidden;}
.stat b{font-family:var(--display);font-weight:800;font-size:clamp(40px,5vw,64px);line-height:.9;display:block;}
.stat b .grad{display:inline;}
.stat > span{font-size:15px;color:var(--dim);font-weight:600;}
@media (max-width:920px){
  .hero__row{grid-template-columns:1fr;}
  .hero__visual{order:-1;max-width:480px;}
}
@media (max-width:600px){.hero__stats{grid-template-columns:1fr;}}

/* ---------------- GLASS CARDS ---------------- */
.cards{display:grid;gap:20px;}
.cards--3{grid-template-columns:repeat(3,1fr);}
.cards--2{grid-template-columns:repeat(2,1fr);}
.gcard{position:relative;border-radius:22px;padding:32px 30px;background:var(--glass);
  border:1px solid var(--glass-bd);backdrop-filter:blur(8px);overflow:hidden;
  transition:transform .4s var(--ease),border-color .4s,box-shadow .4s;will-change:transform;}
.gcard::before{content:"";position:absolute;inset:0;opacity:0;transition:opacity .4s;pointer-events:none;
  background:radial-gradient(420px circle at var(--mx,50%) var(--my,0%),rgba(193,59,174,.16),transparent 60%);}
.gcard:hover{transform:translateY(-6px);border-color:rgba(193,59,174,.5);box-shadow:0 30px 60px -28px rgba(193,59,174,.5);}
.gcard:hover::before{opacity:1;}
.gcard__ico{width:56px;height:56px;border-radius:16px;display:grid;place-items:center;font-size:27px;margin-bottom:20px;
  background:linear-gradient(135deg,rgba(255,212,102,.2),rgba(193,59,174,.2));border:1px solid var(--glass-bd);}
.gcard h3{margin-bottom:10px;position:relative;z-index:1;}
.gcard p{font-size:16px;color:var(--dim);margin:0;position:relative;z-index:1;}
.gcard__n{position:absolute;top:20px;right:24px;z-index:0;font-family:var(--display);font-weight:800;font-size:44px;
  line-height:1;color:transparent;-webkit-text-stroke:1.4px rgba(255,212,102,.28);pointer-events:none;}
@media (max-width:940px){.cards--3{grid-template-columns:1fr 1fr;}}
@media (max-width:600px){.cards--3,.cards--2{grid-template-columns:1fr;}}

/* ---------------- ABOUT ---------------- */
.about{display:grid;grid-template-columns:1fr 1.05fr;gap:clamp(30px,5vw,80px);align-items:center;}
.about__img{position:relative;border-radius:24px;overflow:hidden;border:1px solid var(--glass-bd);
  box-shadow:0 40px 90px -36px rgba(0,0,0,.8);will-change:transform;}
.about__img img{width:100%;aspect-ratio:1024/724;object-fit:cover;}
.about__quote{font-family:var(--hand);font-size:clamp(30px,3.6vw,52px);color:var(--gold);line-height:1.02;margin:0 0 16px;font-weight:700;}
@media (max-width:880px){.about{grid-template-columns:1fr;}.about__img{max-width:520px;}}

/* objectives */
.obj{display:grid;grid-template-columns:.92fr 1.08fr;gap:clamp(30px,5vw,72px);align-items:start;}
.obj__img{border-radius:24px;overflow:hidden;border:1px solid var(--glass-bd);box-shadow:0 40px 90px -36px rgba(0,0,0,.8);will-change:transform;}
.obj__img img{width:100%;aspect-ratio:1024/768;object-fit:cover;}
@media (max-width:880px){.obj{grid-template-columns:1fr;}.obj__img{max-width:520px;}}

/* ---------------- TESTIMONIALS marquee ---------------- */
.marq{overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);}
.marq__t{display:flex;gap:22px;width:max-content;animation:scrollx 46s linear infinite;}
.marq:hover .marq__t{animation-play-state:paused;}
@keyframes scrollx{to{transform:translateX(-50%);}}
@media (prefers-reduced-motion:reduce){.marq__t{animation:none;flex-wrap:wrap;width:auto;justify-content:center;}}
body[data-motion="off"] .marq__t{animation:none;flex-wrap:wrap;width:auto;justify-content:center;}
.qcard{flex:none;width:370px;border-radius:20px;padding:30px 30px 26px;background:var(--glass);
  border:1px solid var(--glass-bd);backdrop-filter:blur(8px);position:relative;}
.qcard .stars{color:var(--gold);letter-spacing:2px;font-size:15px;margin-bottom:14px;}
.qcard p{font-size:18px;color:var(--text);font-weight:500;margin:0 0 16px;line-height:1.45;}
.qcard .who{font-family:var(--hand);font-size:21px;color:var(--magenta);}

/* ---------------- PROGRAM timeline ---------------- */
.tl{position:relative;max-width:980px;}
.tl__line{position:absolute;left:33px;top:14px;bottom:14px;width:3px;background:rgba(255,212,102,.14);border-radius:3px;overflow:hidden;}
.tl__line i{position:absolute;inset:0;transform-origin:top;transform:scaleY(var(--p,0));
  background:linear-gradient(var(--gold),var(--magenta));}
.mod{position:relative;padding-left:90px;margin-bottom:18px;}
.mod__dot{position:absolute;left:12px;top:6px;width:46px;height:46px;border-radius:50%;display:grid;place-items:center;
  font-family:var(--display);font-weight:800;font-size:20px;color:var(--plum);z-index:2;
  background:linear-gradient(135deg,var(--gold),var(--gold-2));box-shadow:0 0 0 6px var(--plum),0 8px 22px rgba(255,179,0,.4);transition:transform .3s;}
.mod.open .mod__dot{transform:scale(1.08);}
.mod__panel{border-radius:20px;background:var(--glass);border:1px solid var(--glass-bd);backdrop-filter:blur(8px);overflow:hidden;transition:border-color .3s;}
.mod.open .mod__panel{border-color:rgba(193,59,174,.45);}
.mod__head{display:flex;align-items:center;gap:16px;width:100%;background:none;border:none;text-align:left;padding:24px 26px;}
.mod__head h3{flex:1;min-width:0;}
.mod__head .dur{flex:none;white-space:nowrap;font-family:var(--hand);font-size:19px;color:var(--gold);}
.mod__plus{flex:none;width:36px;height:36px;border-radius:50%;position:relative;transition:transform .4s var(--ease);
  background:rgba(255,212,102,.1);border:1px solid var(--glass-bd);}
.mod__plus::before,.mod__plus::after{content:"";position:absolute;background:var(--gold);border-radius:2px;}
.mod__plus::before{top:50%;left:9px;right:9px;height:2.5px;transform:translateY(-50%);}
.mod__plus::after{left:50%;top:9px;bottom:9px;width:2.5px;transform:translateX(-50%);transition:opacity .3s;}
.mod.open .mod__plus{transform:rotate(180deg);}.mod.open .mod__plus::after{opacity:0;}
.mod__body{max-height:0;overflow:hidden;transition:max-height .5s var(--ease);}
.mod__inner{padding:2px 28px 30px;}
.mod__inner h4{font-family:var(--display);font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--faint);margin:0 0 14px;}
.mod__list{list-style:none;padding:0;margin:0 0 20px;display:grid;gap:11px;}
.mod__list li{display:flex;gap:12px;font-size:16px;color:var(--dim);align-items:flex-start;}
.mod__list li::before{content:"";flex:none;width:21px;height:21px;margin-top:1px;border-radius:7px;
  background:linear-gradient(135deg,var(--gold),var(--gold-2));
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M5 13l4 4L19 7' fill='none' stroke='%23000' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/86% no-repeat,linear-gradient(#000,#000);
  -webkit-mask-composite:source-in;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M5 13l4 4L19 7' fill='none' stroke='%23000' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/86% no-repeat;mask-composite:exclude;}
.mod__goal{font-size:16px;color:var(--dim);border-left:3px solid var(--gold);padding:12px 0 12px 18px;}
.mod__goal b{font-family:var(--display);color:var(--text);}
@media (max-width:560px){.tl__line,.mod__dot{display:none;}.mod{padding-left:0;}}

/* ---------------- GALLERY ---------------- */
.gallery{columns:3;column-gap:18px;}
.gitem{break-inside:avoid;margin-bottom:18px;border-radius:16px;overflow:hidden;position:relative;cursor:pointer;
  border:1px solid var(--glass-bd);background:var(--plum-2);transition:transform .4s var(--ease),box-shadow .4s;will-change:transform;}
.gitem img{width:100%;height:auto;transition:transform .6s var(--ease);}
.gitem:hover{transform:translateY(-5px);box-shadow:0 26px 50px -22px rgba(193,59,174,.6);}
.gitem:hover img{transform:scale(1.05);}
.gitem figcaption{position:absolute;inset:auto 0 0 0;padding:18px 16px 14px;font-family:var(--hand);font-size:20px;color:var(--gold);
  background:linear-gradient(transparent,rgba(22,3,20,.9));opacity:0;transform:translateY(8px);transition:.3s var(--ease);}
.gitem:hover figcaption{opacity:1;transform:none;}
@media (max-width:900px){.gallery{columns:2;}}
@media (max-width:540px){.gallery{columns:1;}}

/* lightbox */
.lb{position:fixed;inset:0;z-index:120;background:rgba(10,1,9,.92);backdrop-filter:blur(8px);
  display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:.3s;padding:28px;}
.lb.open{opacity:1;visibility:visible;}
.lb img{max-width:92vw;max-height:84vh;border-radius:12px;border:1px solid var(--glass-bd);box-shadow:0 40px 100px rgba(0,0,0,.6);}
.lb__cap{position:absolute;bottom:24px;left:0;right:0;text-align:center;font-family:var(--hand);font-size:23px;color:var(--gold);}
.lb__x,.lb__nav{position:absolute;width:54px;height:54px;border-radius:50%;display:grid;place-items:center;font-size:22px;font-weight:700;
  background:var(--glass);border:1px solid var(--glass-bd);backdrop-filter:blur(8px);color:var(--text);transition:.2s;}
.lb__x{top:22px;right:22px;}.lb__nav{top:50%;transform:translateY(-50%);}.lb__prev{left:22px;}.lb__next{right:22px;}
.lb__x:hover,.lb__nav:hover{background:var(--magenta);border-color:var(--magenta);}

/* ---------------- AVANT / APRÈS comparator ---------------- */
.ba{position:relative;max-width:1040px;margin:0 auto;width:100%;aspect-ratio:16/10;border-radius:24px;
  overflow:hidden;border:1px solid var(--glass-bd);box-shadow:0 40px 90px -36px rgba(0,0,0,.8);
  background:#fff;user-select:none;touch-action:pan-y;}
.ba image-slot{width:100%;height:100%;display:block;}
.ba__after{position:absolute;inset:0;}
.ba__before{position:absolute;inset:0;clip-path:inset(0 calc(100% - var(--pos,50%)) 0 0);}
.ba__tag{position:absolute;top:16px;z-index:5;font-family:var(--display);font-weight:700;font-size:13px;
  letter-spacing:.1em;text-transform:uppercase;padding:7px 15px;border-radius:999px;pointer-events:none;}
.ba__tag--a{left:16px;background:rgba(22,3,20,.62);color:var(--gold);border:1px solid rgba(255,212,102,.4);backdrop-filter:blur(6px);}
.ba__tag--b{right:16px;background:linear-gradient(120deg,var(--gold),var(--gold-2));color:var(--plum);}
.ba__handle{position:absolute;top:0;bottom:0;left:var(--pos,50%);width:3px;transform:translateX(-50%);z-index:6;
  background:linear-gradient(var(--gold),var(--magenta));cursor:ew-resize;}
.ba__grip{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:54px;height:54px;border-radius:50%;
  background:rgba(22,3,20,.72);backdrop-filter:blur(8px);border:2px solid var(--gold);display:grid;place-items:center;
  color:var(--gold);box-shadow:0 10px 28px rgba(0,0,0,.55);cursor:ew-resize;transition:transform .2s;}
.ba__handle:hover .ba__grip,.ba.dragging .ba__grip{transform:translate(-50%,-50%) scale(1.08);}
.ba__grip svg{width:24px;height:24px;}

/* ---------------- LEARN / PROSE / FAQ (SEO content) ---------------- */
.learn{display:grid;grid-template-columns:1.6fr .9fr;gap:clamp(30px,4vw,64px);align-items:start;}
.prose{max-width:64ch;}
.prose .lead{color:var(--text);margin-bottom:22px;}
.prose h3{font-size:clamp(20px,1.9vw,27px);margin:36px 0 12px;}
.prose p{color:var(--dim);margin:0 0 16px;font-size:18px;line-height:1.72;}
.prose p strong{color:var(--text);font-weight:700;}
.prose em{color:var(--gold);font-style:normal;}
.brief{position:sticky;top:96px;border-radius:22px;padding:28px 28px 30px;background:var(--glass);
  border:1px solid var(--glass-bd);backdrop-filter:blur(8px);}
.brief h3{font-family:var(--display);font-size:14px;letter-spacing:.12em;text-transform:uppercase;color:var(--gold);margin:0 0 18px;}
.brief ul{list-style:none;padding:0;margin:0;display:grid;gap:16px;}
.brief li{display:grid;gap:3px;}
.brief li b{font-family:var(--display);font-weight:700;font-size:15px;color:var(--text);}
.brief li span{font-size:14px;color:var(--dim);line-height:1.45;}
@media (max-width:860px){.learn{grid-template-columns:1fr;}.brief{position:static;}}

.faq{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:clamp(34px,4vw,56px);}
.faq__item{border-radius:18px;padding:26px 28px;background:var(--glass);border:1px solid var(--glass-bd);backdrop-filter:blur(8px);transition:border-color .3s;}
.faq__item:hover{border-color:rgba(193,59,174,.4);}
.faq__item h3{font-size:19px;margin:0 0 9px;}
.faq__item p{font-size:16px;color:var(--dim);margin:0;line-height:1.6;}
@media (max-width:720px){.faq{grid-template-columns:1fr;}}

/* keyword ribbon (text play + SEO) */
.kwrib{position:relative;z-index:1;overflow:hidden;margin:clamp(28px,4vw,52px) 0 0;
  -webkit-mask:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);mask:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);}
.kwrib__t{display:flex;gap:30px;width:max-content;align-items:center;animation:scrollx 40s linear infinite;}
.kwrib:hover .kwrib__t{animation-play-state:paused;}
.kwrib s{text-decoration:none;font-family:var(--display);font-weight:800;font-size:clamp(26px,4vw,52px);letter-spacing:-.02em;white-space:nowrap;
  color:transparent;-webkit-text-stroke:1.2px rgba(255,212,102,.34);}
.kwrib s.on{-webkit-text-stroke:0;background:linear-gradient(100deg,var(--gold),#F08AD8);-webkit-background-clip:text;background-clip:text;}
.kwrib i{color:var(--magenta);font-size:22px;font-style:normal;}
body[data-motion="off"] .kwrib__t{animation:none;}
@media (prefers-reduced-motion:reduce){.kwrib__t{animation:none;}}

/* glowing stat callout (light play) */
.callout{position:relative;z-index:1;text-align:center;padding:clamp(40px,6vw,78px) 0 clamp(20px,3vw,36px);}
.callout__glow{position:absolute;left:50%;top:46%;width:min(560px,80vw);height:300px;transform:translate(-50%,-50%);
  background:radial-gradient(circle,rgba(193,59,174,.4),transparent 64%);filter:blur(40px);z-index:-1;pointer-events:none;
  animation:breathe 6s ease-in-out infinite;}
@keyframes breathe{0%,100%{opacity:.7;transform:translate(-50%,-50%) scale(1);}50%{opacity:1;transform:translate(-50%,-50%) scale(1.12);}}
body[data-motion="off"] .callout__glow{animation:none;}
.callout b{display:block;font-family:var(--display);font-weight:800;font-size:clamp(82px,17vw,210px);line-height:.82;}
.callout p{font-family:var(--hand);font-size:clamp(22px,2.6vw,34px);color:var(--gold);margin:2px 0 0;}

/* giant faint watermark */
.seoword{position:absolute;right:-1%;top:-7%;font-family:var(--display);font-weight:800;line-height:.8;
  font-size:clamp(110px,21vw,300px);color:transparent;-webkit-text-stroke:1.2px rgba(255,212,102,.07);
  pointer-events:none;user-select:none;z-index:0;}
#comprendre{overflow:hidden;}
#comprendre .wrap{position:relative;}

/* ---------------- CONTACT ---------------- */
.contact__grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(36px,5vw,80px);align-items:center;}
.contact__meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.chip{display:inline-flex;align-items:center;gap:9px;border:1px solid var(--glass-bd);background:var(--glass);
  border-radius:999px;padding:10px 18px;font-weight:600;font-size:15px;color:var(--text);backdrop-filter:blur(8px);}
.chip svg{width:16px;height:16px;}
.handi{font-size:14px;color:var(--faint);margin-top:22px;max-width:34em;}
.form{border-radius:26px;padding:clamp(26px,3vw,42px);background:var(--glass);border:1px solid var(--glass-bd);
  backdrop-filter:blur(12px);box-shadow:0 40px 90px -40px rgba(0,0,0,.8);}
.form__row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:16px;}
.field label{font-weight:700;font-size:14px;color:var(--dim);}
.field input,.field textarea,.field select{font-family:inherit;font-size:16px;color:var(--text);
  background:rgba(22,3,20,.5);border:1.5px solid var(--glass-bd);border-radius:13px;padding:14px 16px;transition:border-color .2s,box-shadow .2s;}
.field input::placeholder,.field textarea::placeholder{color:var(--faint);}
.field textarea{resize:vertical;min-height:96px;}
.field select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23FFD466' stroke-width='3'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--magenta);box-shadow:0 0 0 4px rgba(193,59,174,.18);}
.field.err input,.field.err textarea{border-color:#ff6b6b;}
.field .msg{font-size:13px;color:#ff8787;font-weight:600;display:none;}
.field.err .msg{display:block;}
.form .btn{width:100%;justify-content:center;margin-top:6px;}
.form__ok{display:none;text-align:center;padding:30px 10px;}
.form__ok.show{display:block;}
.form__ok .big{font-family:var(--display);font-weight:800;font-size:30px;margin-bottom:8px;}
.form__ok .hand{font-family:var(--hand);font-size:23px;color:var(--gold);}
@media (max-width:880px){.contact__grid{grid-template-columns:1fr;}.form__row{grid-template-columns:1fr;}}

/* ---------------- FOOTER ---------------- */
.footer{position:relative;padding:90px var(--gutter) 40px;border-top:1px solid var(--line);overflow:hidden;}
.footer__big{font-family:var(--display);font-weight:800;font-size:clamp(60px,18vw,260px);line-height:.8;letter-spacing:-.04em;
  color:transparent;-webkit-text-stroke:1.4px rgba(255,212,102,.16);text-align:center;margin-bottom:60px;user-select:none;pointer-events:none;}
.footer__grid{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
.footer h4{font-family:var(--display);font-weight:800;font-size:17px;margin:0 0 16px;}
.footer ul{list-style:none;padding:0;margin:0;display:grid;gap:9px;}
.footer a{color:var(--dim);font-size:15px;transition:color .2s;}
.footer a:hover{color:var(--gold);}
.footer__brand p{font-size:15px;color:var(--dim);max-width:30em;}
.footer__bottom{max-width:var(--maxw);margin:48px auto 0;padding-top:24px;border-top:1px solid var(--line);font-size:13px;color:var(--faint);}
@media (max-width:880px){.footer__grid{grid-template-columns:1fr 1fr;}}
@media (max-width:520px){.footer__grid{grid-template-columns:1fr;}}

/* ---------------- REVEAL ---------------- */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .8s var(--ease),transform .8s var(--ease);}
.reveal.in{opacity:1;transform:none;}
.reveal[data-d="1"]{transition-delay:.09s;}
.reveal[data-d="2"]{transition-delay:.18s;}
.reveal[data-d="3"]{transition-delay:.27s;}
.reveal[data-d="4"]{transition-delay:.36s;}
.reveal[data-d="5"]{transition-delay:.45s;}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none;}}
body[data-motion="off"] .reveal{opacity:1;transform:none;transition:none;}
body[data-motion="off"] .hero h1 .line span{transform:none;animation:none;}