/* ============================================================================
   NEXAP AGENCY — Direction artistique « SIGNAL »
   Le signal dans le bruit. Noir profond, lumière liquide, typographie éditoriale.
   ========================================================================== */

/* ---------- 1. TOKENS ---------- */
:root{
  /* Encres */
  --ink:#06060A;
  --ink-2:#0A0A11;
  --ink-3:#101019;
  --surface:#12121C;
  --surface-2:#171724;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);

  /* Papier (sections claires) */
  --paper:#F4F2ED;
  --paper-2:#EAE7DF;
  --paper-ink:#0B0B10;
  --paper-muted:#5C5A54;
  --paper-line:rgba(11,11,16,.12);

  /* Texte */
  --text:#EDEDF3;
  --muted:#9695AA;
  --dim:#6B6A7E;

  /* Accents */
  --brand:#4A6BF5;          /* bleu du logo Nexap Agency */
  --violet:#7A5CFF;
  --violet-soft:#9C87FF;
  --cyan:#35E6D0;
  --amber:#FFC46B;
  --grad:linear-gradient(120deg,var(--violet) 0%,#6A7BFF 45%,var(--cyan) 100%);
  --grad-soft:linear-gradient(120deg,rgba(122,92,255,.22),rgba(53,230,208,.16));

  /* Typo */
  --sans:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  --serif:'Instrument Serif',Georgia,'Times New Roman',serif;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;

  /* Rythme */
  --wrap:1280px;
  --wrap-narrow:760px;
  --gut:clamp(20px,4vw,56px);
  --sec:clamp(72px,10vw,148px);
  --r:14px;
  --r-lg:24px;
  --r-xl:34px;

  /* Mouvement */
  --e:cubic-bezier(.22,1,.36,1);
  --e-in:cubic-bezier(.65,0,.35,1);
  --t:.6s var(--e);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px;overflow-x:clip}
body{
  margin:0;background:var(--ink);color:var(--text);
  font-family:var(--sans);font-size:17px;line-height:1.65;
  font-weight:400;letter-spacing:-.011em;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;overflow-x:clip;
}
img,svg,video{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
::selection{background:var(--violet);color:#fff}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}

/* ---------- 2. TYPOGRAPHIE ---------- */
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.032em;line-height:1.06}
.d1{font-size:clamp(2.9rem,8.2vw,7.2rem);line-height:.94;letter-spacing:-.045em;font-weight:600}
.d2{font-size:clamp(2.2rem,5.4vw,4.4rem);line-height:1.02;letter-spacing:-.04em}
.d3{font-size:clamp(1.6rem,3vw,2.5rem);line-height:1.12;letter-spacing:-.032em}
.d4{font-size:clamp(1.2rem,1.8vw,1.5rem);line-height:1.25;letter-spacing:-.024em}
.ser{font-family:var(--serif);font-weight:400;letter-spacing:-.02em}
.ser-i{font-family:var(--serif);font-style:italic;font-weight:400;letter-spacing:-.015em}
.grad-t{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.lede{font-size:clamp(1.08rem,1.7vw,1.3rem);line-height:1.6;color:var(--muted);font-weight:400}
p{margin:0 0 1.1em}
.mut{color:var(--muted)}
.dim{color:var(--dim)}

.kick{
  display:inline-flex;align-items:center;gap:.6em;
  font-family:var(--mono);font-size:.68rem;font-weight:500;
  letter-spacing:.18em;text-transform:uppercase;color:var(--cyan);
  margin-bottom:1.4rem;
}
.kick::before{content:"";width:26px;height:1px;background:currentColor;opacity:.6}
.kick.k-v{color:var(--violet-soft)}

/* ---------- 3. LAYOUT ---------- */
.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gut)}
.narrow{max-width:var(--wrap-narrow);margin-inline:auto;padding-inline:var(--gut)}
section{position:relative}
.sec{padding-block:var(--sec)}
.sec-sm{padding-block:clamp(48px,6vw,84px)}
.grid{display:grid;gap:clamp(18px,2.4vw,32px)}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.g-12-8{grid-template-columns:1.2fr .8fr}
@media(max-width:1024px){.g4{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(2,1fr)}.g-12-8{grid-template-columns:1fr}}
@media(max-width:680px){.g2,.g3,.g4{grid-template-columns:1fr}}
.stack-sm>*+*{margin-top:.6rem}
.center{text-align:center}
.hd{max-width:64ch}
.hd.center{margin-inline:auto}

/* Section « papier » */
.paper{background:var(--paper);color:var(--paper-ink)}
.paper .mut,.paper .lede{color:var(--paper-muted)}
.paper .kick{color:#6B4CE8}
.paper h1,.paper h2,.paper h3{color:var(--paper-ink)}

/* ---------- 4. GRAIN + AMBIANCE ---------- */
.grain{
  position:fixed;inset:0;z-index:9998;pointer-events:none;opacity:.035;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode:overlay;
}
.glow{position:absolute;border-radius:50%;filter:blur(90px);pointer-events:none;z-index:0}
/* garde-fou : un halo ne doit jamais élargir le document */
.glow-wrap{position:absolute;inset:0;overflow:hidden;pointer-events:none}
.glow-v{background:rgba(122,92,255,.28)}
.glow-c{background:rgba(53,230,208,.18)}

/* ---------- 5. HEADER ---------- */
.hdr{
  position:fixed;top:0;left:0;right:0;z-index:900;
  transition:transform .45s var(--e),background .35s ease,border-color .35s ease,backdrop-filter .35s ease;
  border-bottom:1px solid transparent;
}
.hdr.stuck{
  background:rgba(6,6,10,.72);backdrop-filter:blur(18px) saturate(160%);
  -webkit-backdrop-filter:blur(18px) saturate(160%);border-bottom-color:var(--line);
}
.hdr.hide{transform:translateY(-104%)}
.hdr-in{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px}
.logo{display:flex;align-items:center;gap:.62rem;font-weight:600;font-size:1.06rem;letter-spacing:-.03em;flex-shrink:0}
.logo-m{width:30px;height:30px;flex-shrink:0;transition:transform .5s var(--e)}
.logo:hover .logo-m{transform:rotate(45deg)}
.logo em{font-family:var(--serif);font-style:italic;font-weight:400;opacity:.62}
.nav{display:flex;align-items:center;gap:2px}
.nav a{
  position:relative;padding:.5rem .78rem;font-size:.895rem;color:var(--muted);
  border-radius:9px;transition:color .25s ease,background .25s ease;
}
.nav a:hover,.nav a[aria-current]{color:var(--text);background:rgba(255,255,255,.055)}
.hdr-cta{display:flex;align-items:center;gap:10px}
.burger{display:none;width:44px;height:44px;align-items:center;justify-content:center;border-radius:11px;border:1px solid var(--line)}
.burger span{display:block;width:17px;height:1.5px;background:currentColor;position:relative;transition:.3s var(--e)}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:17px;height:1.5px;background:currentColor;transition:.3s var(--e)}
.burger span::before{top:-5.5px}.burger span::after{top:5.5px}
body.menu-open .burger span{background:transparent}
body.menu-open .burger span::before{top:0;transform:rotate(45deg)}
body.menu-open .burger span::after{top:0;transform:rotate(-45deg)}
@media(max-width:1080px){.nav,.hdr-cta .btn-txt{display:none}.burger{display:flex}}

/* Menu plein écran */
.menu{
  position:fixed;inset:0;z-index:890;background:var(--ink-2);
  padding:clamp(92px,11vh,128px) var(--gut) clamp(28px,5vh,48px);
  overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;
  clip-path:inset(0 0 100% 0);transition:clip-path .7s var(--e);
  display:flex;flex-direction:column;
  /* justify-content:center est un piège ici : quand le contenu dépasse, le
     débordement se produit des DEUX côtés et le haut devient inatteignable,
     même avec overflow-y:auto. Des marges automatiques centrent quand il y a
     de la place et se réduisent à zéro quand il n'y en a plus. */
}
body.menu-open .menu{clip-path:inset(0 0 0 0)}
body.menu-open{overflow:hidden}
.menu-list{list-style:none;margin:auto auto 0;padding:0;max-width:var(--wrap);width:100%}
.menu-list li{border-bottom:1px solid var(--line);overflow:hidden}
.menu-list a{
  display:flex;align-items:baseline;gap:1rem;padding:.45em 0;
  /* min(vw, vh) : l'entrée rétrécit aussi quand l'écran est bas de plafond */
  font-size:clamp(1.35rem,min(6.4vw,4.9vh),3rem);
  letter-spacing:-.04em;line-height:1.12;font-weight:600;
  transform:translateY(110%);transition:transform .7s var(--e),color .3s ease;
}
body.menu-open .menu-list a{transform:translateY(0)}
.menu-list a:hover{color:var(--violet-soft)}
.menu-list .num{font-family:var(--mono);font-size:.72rem;color:var(--dim);letter-spacing:.14em}
.menu-foot{max-width:var(--wrap);margin:clamp(1.4rem,3vh,2.4rem) auto auto;width:100%;display:flex;flex-wrap:wrap;gap:1rem 1.6rem;justify-content:space-between;color:var(--muted);font-size:.9rem}

/* Barre de progression */
.prog{position:fixed;top:0;left:0;height:2px;width:0;background:var(--grad);z-index:950;transition:width .1s linear}

/* ---------- 6. BOUTONS ---------- */
.btn{
  --bg:var(--text);--fg:var(--ink);
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:.6em;
  padding:.92em 1.6em;border-radius:100px;font-size:.92rem;font-weight:550;
  letter-spacing:-.012em;background:var(--bg);color:var(--fg);overflow:hidden;
  transition:transform .3s var(--e),box-shadow .35s var(--e),background .3s ease,color .3s ease;
  will-change:transform;isolation:isolate;white-space:nowrap;
}
.btn::after{
  content:"";position:absolute;inset:0;background:var(--grad);z-index:-1;
  transform:translateY(101%);transition:transform .45s var(--e);
}
.btn:hover::after{transform:translateY(0)}
.btn:hover{color:#fff;box-shadow:0 14px 40px -10px rgba(122,92,255,.55)}
.btn:active{transform:scale(.975)}
.btn-g{--bg:transparent;--fg:var(--text);border:1px solid var(--line-strong)}
.btn-g:hover{border-color:transparent}
.btn-grad{--bg:transparent;--fg:#fff;background:var(--grad)}
.btn-grad::after{background:var(--text);transform:translateY(101%)}
.btn-grad:hover{color:var(--ink)}
.btn-lg{padding:1.08em 2em;font-size:1rem}
.btn-sm{padding:.7em 1.15em;font-size:.85rem}
.paper .btn{--bg:var(--paper-ink);--fg:var(--paper)}
.paper .btn-g{--bg:transparent;--fg:var(--paper-ink);border-color:var(--paper-line)}
.btn-txt{
  display:inline-flex;align-items:center;gap:.5em;font-size:.92rem;color:var(--muted);
  transition:color .25s ease,gap .25s var(--e);
}
.btn-txt:hover{color:var(--text);gap:.85em}
.btn-txt svg{transition:transform .3s var(--e)}
.btn-txt:hover svg{transform:translateX(3px)}
.paper .btn-txt{color:var(--paper-muted)}
.paper .btn-txt:hover{color:var(--paper-ink)}

/* ---------- 7. HERO ---------- */
/* Centrage optique : l'en-tete fixe occupe les 76 premiers pixels. Un padding
   haut de 76px + P contre P en bas place le bloc au centre de la zone REELLEMENT
   visible, et non au centre du viewport. */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;overflow:hidden;
  padding-top:calc(76px + clamp(24px,4vh,56px));padding-bottom:clamp(24px,4vh,56px)}
#aurora{position:absolute;inset:0;width:100%;height:100%;z-index:0;opacity:.92}
.hero-fallback{
  position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(70% 90% at 18% 12%,rgba(122,92,255,.42),transparent 62%),
    radial-gradient(60% 80% at 82% 70%,rgba(53,230,208,.26),transparent 60%),
    radial-gradient(50% 60% at 50% 100%,rgba(255,196,107,.12),transparent 65%);
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(to bottom,rgba(6,6,10,.5) 0%,transparent 22%,transparent 62%,var(--ink) 100%);
}
/* Hero centré et épuré : une accroche, une phrase, deux actions. Rien d'autre.
   Les preuves de confiance sont portées par le bandeau juste en dessous ;
   les empiler ici surchargeait le premier écran. */
.hero-in{position:relative;z-index:2;width:100%;text-align:center}
.hero-in .kick{justify-content:center}
.hero h1{max-width:16ch;margin-inline:auto}
.hero .lede{max-width:46ch;margin:1.7rem auto 0}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:2.8rem;align-items:center;justify-content:center}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:1.4rem 2.4rem;margin-top:4rem;
  padding-top:1.8rem;border-top:1px solid var(--line);
}
.hero-meta div{display:flex;flex-direction:column;gap:.15rem}
.hero-meta b{font-size:1.5rem;font-weight:600;letter-spacing:-.03em}
.hero-meta span{font-family:var(--mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--dim)}

/* Révélation de titre ligne par ligne */
.rl{display:block;overflow:hidden}
.rl>span{display:block;transform:translateY(105%);opacity:0}
.js .rl.in>span{animation:rlUp .95s var(--e) forwards}
.js .rl.in:nth-child(2)>span{animation-delay:.09s}
.js .rl.in:nth-child(3)>span{animation-delay:.18s}
.js .rl.in:nth-child(4)>span{animation-delay:.27s}
@keyframes rlUp{to{transform:translateY(0);opacity:1}}

/* Indicateur de défilement */
.scroll-hint{
  position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:3;
  display:flex;flex-direction:column;align-items:center;gap:.6rem;
  font-family:var(--mono);font-size:.6rem;letter-spacing:.22em;text-transform:uppercase;color:var(--dim);
}
.scroll-hint i{display:block;width:1px;height:44px;background:linear-gradient(var(--dim),transparent);animation:sh 2.2s var(--e) infinite}
@keyframes sh{0%{transform:scaleY(0);transform-origin:top}45%{transform:scaleY(1);transform-origin:top}55%{transform:scaleY(1);transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* ---------- 8. RÉVÉLATIONS AU SCROLL ---------- */
.js .rv{opacity:0;transform:translateY(28px);transition:opacity .85s var(--e),transform .85s var(--e)}
.js .rv.in{opacity:1;transform:none}
.js .rv-s{opacity:0;transform:translateY(34px) scale(.985);transition:opacity .9s var(--e),transform .9s var(--e)}
.js .rv-s.in{opacity:1;transform:none}
.js [data-stagger]>*{opacity:0;transform:translateY(26px);transition:opacity .8s var(--e),transform .8s var(--e)}
.js [data-stagger].in>*{opacity:1;transform:none}

/* ---------- 9. CARTES ---------- */
.card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:clamp(22px,2.6vw,34px);overflow:hidden;
  transition:border-color .4s ease,transform .5s var(--e),background .4s ease;
  display:flex;flex-direction:column;
}
.card::before{
  content:"";position:absolute;inset:0;opacity:0;transition:opacity .5s ease;pointer-events:none;
  background:radial-gradient(420px circle at var(--mx,50%) var(--my,0%),rgba(122,92,255,.16),transparent 62%);
}
.card:hover::before{opacity:1}
.card:hover{border-color:var(--line-strong);transform:translateY(-4px)}
.card h3{font-size:1.22rem;letter-spacing:-.028em;margin-bottom:.55rem}
.card p{color:var(--muted);font-size:.945rem;margin:0}
.card-link{cursor:pointer}
.card-arrow{margin-top:auto;padding-top:1.6rem;display:flex;align-items:center;gap:.5em;font-size:.86rem;color:var(--dim);transition:color .3s,gap .3s var(--e)}
.card-link:hover .card-arrow{color:var(--cyan);gap:.85em}
.card-n{font-family:var(--mono);font-size:.66rem;letter-spacing:.16em;color:var(--dim);margin-bottom:1.5rem;display:block}
.paper .card{background:#fff;border-color:var(--paper-line)}
.paper .card p{color:var(--paper-muted)}
.paper .card::before{background:radial-gradient(420px circle at var(--mx,50%) var(--my,0%),rgba(107,76,232,.09),transparent 62%)}

/* Carte icône */
.ico{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:var(--grad-soft);border:1px solid var(--line);margin-bottom:1.4rem;flex-shrink:0;
}
.ico svg{width:21px;height:21px;stroke:var(--cyan);fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.paper .ico{background:linear-gradient(120deg,rgba(107,76,232,.12),rgba(53,230,208,.1));border-color:var(--paper-line)}
.paper .ico svg{stroke:#6B4CE8}

/* Carte 3D inclinable */
.tilt{transform-style:preserve-3d;will-change:transform;transition:transform .5s var(--e)}
.tilt-in{transform:translateZ(30px)}

/* ---------- 10. TRAVAUX / PORTFOLIO ---------- */
.work{
  position:relative;display:block;border-radius:var(--r-xl);overflow:hidden;
  background:var(--surface);border:1px solid var(--line);
  transition:transform .6s var(--e),border-color .4s ease;
}
.work:hover{transform:translateY(-6px);border-color:var(--line-strong)}
.work-vis{
  position:relative;aspect-ratio:16/10;overflow:hidden;
  background:linear-gradient(140deg,var(--c1,#7A5CFF),var(--c2,#35E6D0));
}
.work-vis::after{content:"";position:absolute;inset:0;background:radial-gradient(120% 100% at 50% 0%,transparent,rgba(6,6,10,.55))}
.work-mock{
  position:absolute;left:50%;top:56%;transform:translate(-50%,-50%) perspective(1200px) rotateX(9deg) rotateY(-11deg) scale(1.02);
  width:78%;border-radius:12px;overflow:hidden;box-shadow:0 44px 90px -26px rgba(0,0,0,.75);
  transition:transform .8s var(--e);background:#fff;
}
.work:hover .work-mock{transform:translate(-50%,-50%) perspective(1200px) rotateX(3deg) rotateY(-4deg) scale(1.06)}
.work-bar{height:26px;background:#1a1a24;display:flex;align-items:center;gap:5px;padding-inline:11px}
.work-bar i{width:7px;height:7px;border-radius:50%;background:rgba(255,255,255,.22)}
.work-bar u{
  flex:1;margin-left:8px;height:13px;border-radius:20px;background:rgba(255,255,255,.09);
  font-family:var(--mono);font-size:8px;color:rgba(255,255,255,.5);text-decoration:none;
  display:flex;align-items:center;padding-inline:8px;letter-spacing:.02em;
}
/* Capture réelle du site, dans le cadre du navigateur.
   object-position anime un panoramique vertical au survol : on montre que le
   site existe vraiment et qu'il se prolonge au-delà du premier écran. */
.work-shot{
  display:block;width:100%;aspect-ratio:1200/616;object-fit:cover;
  object-position:50% 0%;background:#eceaf2;
  transform-origin:50% 0%;transition:transform 1.1s var(--e);
}
.work:hover .work-shot{ transform:scale(1.045) }
@media(prefers-reduced-motion:reduce){
  .work-shot{transition:none}
  .work:hover .work-shot{transform:none}
}
.work-meta{padding:clamp(20px,2.4vw,30px);display:flex;flex-direction:column;gap:.5rem}
.work-meta .wm-top{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.work-meta h3{font-size:clamp(1.3rem,2.2vw,1.75rem);letter-spacing:-.032em}
.work-meta .wm-y{font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;color:var(--dim)}
.work-meta p{color:var(--muted);font-size:.94rem;margin:0}
.tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:.9rem}
.tag{
  font-family:var(--mono);font-size:.63rem;letter-spacing:.1em;text-transform:uppercase;
  padding:.42em .78em;border-radius:100px;border:1px solid var(--line);color:var(--muted);
}
.paper .tag{border-color:var(--paper-line);color:var(--paper-muted)}
.tag-c{border-color:rgba(53,230,208,.35);color:var(--cyan)}

/* ---------- 11. MARQUEE ---------- */
.mq{
  overflow:hidden;border-block:1px solid var(--line);padding-block:30px;position:relative;
  background:linear-gradient(180deg,rgba(74,107,245,.05),transparent 55%,rgba(53,230,208,.04));
}
.mq::before,.mq::after{content:"";position:absolute;top:0;bottom:0;width:clamp(70px,12vw,180px);z-index:2;pointer-events:none}
.mq::before{left:0;background:linear-gradient(90deg,var(--ink) 12%,transparent)}
.mq::after{right:0;background:linear-gradient(-90deg,var(--ink) 12%,transparent)}
.mq-track{display:flex;gap:0;width:max-content;animation:mq 46s linear infinite;will-change:transform}
/* WCAG 2.2.2 « Pause, arrêter, masquer » : le défilement doit pouvoir être
   interrompu. Le survol et le focus clavier mettent l'animation en pause. */
.mq:hover .mq-track,.mq:focus-within .mq-track{animation-play-state:paused}
@keyframes mq{from{transform:translate3d(0,0,0)}to{transform:translate3d(-50%,0,0)}}
.mq-item{
  display:inline-flex;align-items:center;gap:1.6rem;padding-inline:1.7rem;
  font-size:clamp(1.15rem,2.3vw,1.8rem);font-family:var(--serif);letter-spacing:-.02em;
  color:var(--muted);white-space:nowrap;transition:color .4s ease;
}
.mq:hover .mq-item{color:var(--text)}
/* Pastille de séparation aux couleurs de la marque */
.mq-item::after{
  content:"";width:7px;height:7px;border-radius:50%;flex-shrink:0;
  background:var(--brand);box-shadow:0 0 12px var(--brand);opacity:.9;
}
.mq-item:nth-child(2n)::after{background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
.mq-item:nth-child(3n)::after{background:var(--violet);box-shadow:0 0 12px var(--violet)}

.paper .mq::before{background:linear-gradient(90deg,var(--paper),transparent)}
.paper .mq::after{background:linear-gradient(-90deg,var(--paper),transparent)}

/* ---------- 12. DÉFILEMENT HORIZONTAL ---------- */
.hscroll{position:relative}
.hscroll-sticky{position:sticky;top:0;height:100svh;display:flex;align-items:center;overflow:hidden}
.hscroll-track{display:flex;gap:clamp(18px,2vw,28px);padding-inline:var(--gut);will-change:transform}
.hscroll-card{
  flex:0 0 clamp(280px,32vw,420px);border-radius:var(--r-lg);padding:clamp(24px,2.4vw,34px);
  background:var(--surface);border:1px solid var(--line);min-height:min(62vh,480px);
  display:flex;flex-direction:column;
}
.hscroll-card .step-n{
  font-family:var(--mono);font-size:.68rem;letter-spacing:.18em;color:var(--cyan);margin-bottom:auto;
}
.hscroll-card h3{font-size:clamp(1.35rem,2.2vw,1.85rem);margin-block:1.4rem .7rem;letter-spacing:-.032em}
.hscroll-card p{color:var(--muted);font-size:.95rem;margin:0}
.hscroll-card ul{margin:1.2rem 0 0;padding:0;list-style:none;display:grid;gap:.5rem}
.hscroll-card li{font-size:.86rem;color:var(--dim);padding-left:1.1rem;position:relative}
.hscroll-card li::before{content:"";position:absolute;left:0;top:.62em;width:5px;height:5px;border-radius:50%;background:var(--violet)}
@media(max-width:900px){
  .hscroll-sticky{position:static;height:auto;padding-block:0}
  .hscroll-track{flex-direction:column;transform:none!important}
  .hscroll-card{flex:1;min-height:0}
}

/* ---------- 13. STATS ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.stat{background:var(--ink);padding:clamp(22px,2.6vw,34px);display:flex;flex-direction:column;gap:.3rem}
.paper .stats{background:var(--paper-line);border-color:var(--paper-line)}
.paper .stat{background:var(--paper)}
.stat b{font-size:clamp(2rem,4.4vw,3.3rem);font-weight:600;letter-spacing:-.045em;line-height:1;font-variant-numeric:tabular-nums;white-space:nowrap}
.stat>span{display:block;font-size:.9rem;color:var(--muted);margin-top:.5rem}
.stat b span{font-size:inherit;font-weight:inherit;letter-spacing:inherit}
.stat i{font-family:var(--mono);font-size:.63rem;letter-spacing:.13em;text-transform:uppercase;color:var(--dim);font-style:normal}
@media(max-width:900px){.stats{grid-template-columns:repeat(2,1fr)}}

/* ---------- 14. LISTES ---------- */
.chk{list-style:none;margin:0;padding:0;display:grid;gap:.85rem}
.chk li{position:relative;padding-left:2rem;font-size:.98rem;color:var(--muted)}
.chk li::before{
  content:"";position:absolute;left:0;top:.42em;width:17px;height:17px;border-radius:50%;
  background:var(--grad-soft);border:1px solid rgba(53,230,208,.35);
}
.chk li::after{
  content:"";position:absolute;left:5.5px;top:.78em;width:6px;height:3px;
  border-left:1.5px solid var(--cyan);border-bottom:1.5px solid var(--cyan);transform:rotate(-45deg);
}
.paper .chk li{color:var(--paper-muted)}
.paper .chk li::after{border-color:#6B4CE8}

.num-list{list-style:none;margin:0;padding:0;counter-reset:n;display:grid;gap:0}
/* « > » indispensable : sans lui, les listes à puces imbriquées dans une
   étape (ul.chk) incrémentent le compteur et affichent un numéro par-dessus
   leur propre pastille de coche. */
.num-list>li{
  counter-increment:n;position:relative;padding:1.5rem 0 1.5rem 4rem;border-bottom:1px solid var(--line);
}
.num-list>li:first-child{border-top:1px solid var(--line)}
.num-list>li::before{
  content:counter(n,decimal-leading-zero);position:absolute;left:0;top:1.55rem;
  font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;color:var(--violet-soft);
}
.num-list>li>h3{font-size:1.1rem;margin-bottom:.35rem;letter-spacing:-.026em}
.num-list>li>p{color:var(--muted);font-size:.94rem;margin:0}
.paper .num-list>li,.paper .num-list>li:first-child{border-color:var(--paper-line)}
.paper .num-list>li>p{color:var(--paper-muted)}

/* Liste « problèmes » */
.probs{list-style:none;margin:0;padding:0;display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.probs li{background:var(--ink-2);padding:clamp(20px,2.2vw,28px)}
.probs h3{font-size:1.02rem;margin-bottom:.4rem;letter-spacing:-.024em;display:flex;align-items:baseline;gap:.6rem}
.probs h3::before{content:"×";color:#FF6B6B;font-size:1.15rem;line-height:1;flex-shrink:0}
.probs p{color:var(--muted);font-size:.92rem;margin:0}
@media(min-width:760px){.probs{grid-template-columns:1fr 1fr}}

/* ---------- 15. FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  list-style:none;cursor:pointer;padding:1.5rem 3rem 1.5rem 0;position:relative;
  font-size:clamp(1.02rem,1.5vw,1.16rem);font-weight:550;letter-spacing:-.024em;line-height:1.4;
  transition:color .25s ease;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--cyan)}
.faq summary::after{
  content:"";position:absolute;right:4px;top:1.85rem;width:13px;height:13px;
  border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;
  transform:rotate(45deg);transition:transform .35s var(--e);opacity:.55;
}
.faq details[open] summary::after{transform:rotate(-135deg);opacity:1}
.faq details[open] summary{color:var(--cyan)}
.faq-a{padding:0 3rem 1.7rem 0;color:var(--muted);font-size:1rem;max-width:78ch}
.faq-a p:last-child{margin-bottom:0}
.paper .faq,.paper .faq details{border-color:var(--paper-line)}
.paper .faq summary:hover,.paper .faq details[open] summary{color:#6B4CE8}
.paper .faq-a{color:var(--paper-muted)}

/* ---------- 16. RÉPONSE DIRECTE (bloc GEO) ---------- */
.answer{
  position:relative;border-radius:var(--r-lg);padding:clamp(22px,2.6vw,32px);
  background:linear-gradient(140deg,rgba(122,92,255,.13),rgba(53,230,208,.07));
  border:1px solid rgba(122,92,255,.26);margin-block:2rem;
}
.answer .kick{margin-bottom:.9rem}
.answer p{font-size:1.06rem;line-height:1.62;margin:0;color:var(--text)}
.paper .answer{background:linear-gradient(140deg,rgba(107,76,232,.08),rgba(53,230,208,.06));border-color:rgba(107,76,232,.2)}
.paper .answer p{color:var(--paper-ink)}

/* ---------- 17. PROSE (articles) ---------- */
.prose{font-size:1.075rem;line-height:1.72}
.prose h2{font-size:clamp(1.55rem,2.8vw,2.15rem);letter-spacing:-.034em;margin:3.2rem 0 1.1rem;line-height:1.14}
.prose h3{font-size:1.24rem;letter-spacing:-.026em;margin:2.2rem 0 .7rem}
.prose p{margin:0 0 1.25em;color:var(--muted)}
.prose strong{color:var(--text);font-weight:600}
.prose ul{margin:0 0 1.5em;padding:0;list-style:none;display:grid;gap:.75rem}
.prose ul li{position:relative;padding-left:1.5rem;color:var(--muted)}
.prose ul li::before{content:"";position:absolute;left:.15rem;top:.68em;width:6px;height:6px;border-radius:50%;background:var(--violet)}
.prose code{font-family:var(--mono);font-size:.86em;background:var(--surface);padding:.15em .45em;border-radius:5px;border:1px solid var(--line);color:var(--cyan)}
.prose a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;text-decoration-color:rgba(53,230,208,.4);transition:text-decoration-color .3s}
.prose a:hover{text-decoration-color:var(--cyan)}
.tbl-wrap{overflow-x:auto;margin:0 0 1.8em;border:1px solid var(--line);border-radius:var(--r)}
.prose table{width:100%;border-collapse:collapse;font-size:.94rem;min-width:520px}
.prose th{
  text-align:left;padding:.9rem 1.1rem;background:var(--surface);font-weight:600;
  font-family:var(--mono);font-size:.68rem;letter-spacing:.11em;text-transform:uppercase;color:var(--cyan);
  border-bottom:1px solid var(--line);white-space:nowrap;
}
.prose td{padding:.85rem 1.1rem;border-bottom:1px solid var(--line);color:var(--muted)}
.prose tr:last-child td{border-bottom:0}
.prose td:first-child{color:var(--text);font-weight:500}
.note{
  border-left:2px solid var(--cyan);padding:1rem 0 1rem 1.4rem;margin:0 0 1.8em;
  color:var(--muted);font-size:1rem;background:linear-gradient(90deg,rgba(53,230,208,.055),transparent);
}
.note::before{
  content:"À retenir";display:block;font-family:var(--mono);font-size:.62rem;letter-spacing:.17em;
  text-transform:uppercase;color:var(--cyan);margin-bottom:.4rem;
}

/* ---------- 18. FIL D'ARIANE ---------- */
.crumbs{display:flex;flex-wrap:wrap;gap:.5rem;font-size:.8rem;color:var(--dim);margin-bottom:1.8rem;align-items:center}
.crumbs a{color:var(--muted);transition:color .25s}
.crumbs a:hover{color:var(--cyan)}
.crumbs span[aria-hidden]{opacity:.4}
.paper .crumbs a{color:var(--paper-muted)}

/* ---------- 19. PAGE HERO (intérieures) ---------- */
.phero{position:relative;padding-top:clamp(130px,15vh,180px);padding-bottom:clamp(48px,6vw,80px);overflow:hidden}
.phero::before{
  content:"";position:absolute;top:-30%;left:50%;transform:translateX(-50%);
  width:min(1100px,120vw);aspect-ratio:1;border-radius:50%;z-index:-1;
  background:radial-gradient(circle,rgba(122,92,255,.2),transparent 62%);filter:blur(50px);
}
/* Pages interieures centrees, comme l'accueil. */
.phero{text-align:center}
.phero .crumbs{justify-content:center}
.phero .kick{justify-content:center}
.phero h1{max-width:19ch;margin-inline:auto}
.phero .lede{max-width:56ch;margin:1.4rem auto 0}
.phero .hero-cta{justify-content:center}
.phero .pmeta{justify-content:center}
.phero .pills{justify-content:center}

/* ---------- 20. FORMULAIRES ---------- */
.form{display:grid;gap:1.1rem}
.field{display:grid;gap:.45rem}
.field label{font-size:.82rem;color:var(--muted);font-weight:500;letter-spacing:-.008em}
.field label .req{color:var(--violet-soft)}
.field input,.field textarea,.field select{
  width:100%;padding:.92em 1.05em;border-radius:12px;background:var(--surface);
  border:1px solid var(--line);color:var(--text);font-family:inherit;font-size:.98rem;
  transition:border-color .3s ease,background .3s ease,box-shadow .3s ease;
}
.field textarea{resize:vertical;min-height:130px}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--violet);background:var(--surface-2);
  box-shadow:0 0 0 3px rgba(122,92,255,.14);
}
.field input::placeholder,.field textarea::placeholder{color:var(--dim)}
.field select{appearance:none;cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239695AA' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 1.05em center;padding-right:2.6em;
}
.f2{display:grid;grid-template-columns:1fr 1fr;gap:1.1rem}
@media(max-width:600px){.f2{grid-template-columns:1fr}}
.consent{display:flex;gap:.7rem;align-items:flex-start;font-size:.82rem;color:var(--dim);line-height:1.5}
.consent input{width:17px;height:17px;margin-top:.18rem;flex-shrink:0;accent-color:var(--violet)}
.consent a{color:var(--muted);text-decoration:underline;text-underline-offset:2px}

/* Choix radio en cartes */
.opts{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:.7rem}
.opt{position:relative}
.opt input{position:absolute;opacity:0;pointer-events:none}
.opt span{
  display:block;padding:.85em 1em;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);font-size:.89rem;text-align:center;cursor:pointer;
  transition:border-color .25s,background .25s,color .25s;
}
.opt input:checked+span{border-color:var(--violet);background:rgba(122,92,255,.13);color:var(--text)}
.opt input:focus-visible+span{outline:2px solid var(--cyan);outline-offset:2px}

/* ---------- 21. CTA FINAL ---------- */
.cta-band{position:relative;overflow:hidden;border-radius:var(--r-xl);padding:clamp(40px,6vw,84px);background:var(--surface);border:1px solid var(--line)}
.cta-band::before{
  content:"";position:absolute;inset:-2px;z-index:0;opacity:.5;
  background:conic-gradient(from 180deg at 50% 50%,transparent,rgba(122,92,255,.5),transparent 40%,rgba(53,230,208,.4),transparent 70%);
  animation:spin 16s linear infinite;
}
.cta-band::after{content:"";position:absolute;inset:1px;background:var(--ink-2);border-radius:calc(var(--r-xl) - 1px);z-index:1}
@keyframes spin{to{transform:rotate(1turn)}}
.cta-in{position:relative;z-index:2}
.cta-in h2{max-width:17ch;margin-inline:auto}
.cta-in .lede{max-width:52ch;margin:1.2rem auto 2.2rem}

/* ---------- 22. PIED DE PAGE ---------- */
.ftr{border-top:1px solid var(--line);padding-top:clamp(52px,6vw,86px);padding-bottom:34px;position:relative;overflow:hidden}
.ftr-grid{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:clamp(26px,3vw,44px);margin-bottom:clamp(40px,5vw,64px)}
@media(max-width:1024px){.ftr-grid{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.ftr-grid{grid-template-columns:1fr}}
.ftr h4{font-family:var(--mono);font-size:.65rem;letter-spacing:.17em;text-transform:uppercase;color:var(--dim);margin-bottom:1.1rem;font-weight:500}
.ftr ul{list-style:none;margin:0;padding:0;display:grid;gap:.6rem}
.ftr ul a{font-size:.9rem;color:var(--muted);transition:color .25s}
.ftr ul a:hover{color:var(--text)}
.ftr-brand p{color:var(--muted);font-size:.93rem;max-width:34ch;margin-top:1rem}
.ftr-contact{display:grid;gap:.5rem;margin-top:1.5rem;font-size:.9rem}
.ftr-contact a{color:var(--muted);transition:color .25s}
.ftr-contact a:hover{color:var(--cyan)}
.ftr-bot{
  border-top:1px solid var(--line);padding-top:26px;display:flex;flex-wrap:wrap;
  gap:1rem 2rem;justify-content:space-between;align-items:center;font-size:.8rem;color:var(--dim);
}
.ftr-bot nav{display:flex;flex-wrap:wrap;gap:1.2rem}
.ftr-bot a:hover{color:var(--muted)}
.ftr-word{
  font-family:var(--serif);font-size:clamp(3.4rem,15vw,13rem);line-height:.8;letter-spacing:-.05em;
  color:transparent;-webkit-text-stroke:1px rgba(255,255,255,.07);
  text-align:center;margin-top:2.6rem;user-select:none;pointer-events:none;white-space:nowrap;
}

/* ---------- 23. UTILITAIRES ---------- */
.pill{
  display:inline-flex;align-items:center;gap:.5em;padding:.45em .9em;border-radius:100px;
  border:1px solid var(--line);font-size:.78rem;color:var(--muted);
  transition:border-color .25s,color .25s,background .25s;
}
a.pill:hover{border-color:var(--violet);color:var(--text);background:rgba(122,92,255,.1)}
.paper .pill{border-color:var(--paper-line);color:var(--paper-muted)}
.paper a.pill:hover{background:rgba(107,76,232,.09);color:var(--paper-ink)}
.pills{display:flex;flex-wrap:wrap;gap:.55rem}
.dot{width:6px;height:6px;border-radius:50%;background:var(--cyan);flex-shrink:0;box-shadow:0 0 10px var(--cyan)}
.rule{height:1px;background:var(--line);border:0;margin:0}
.paper .rule{background:var(--paper-line)}
.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip{position:absolute;top:-100px;left:16px;z-index:999;background:var(--violet);color:#fff;padding:.7em 1.2em;border-radius:10px;transition:top .25s}
.skip:focus{top:16px}
.mono{font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--dim)}

/* Index alphabétique / listes denses */
/* fond = couleur des cellules : la zone vide de fin de grille reste invisible,
   les séparateurs sont tracés par l'outline de chaque cellule (hors flux) */
.index-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:1px;background:var(--ink-2);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.index-grid a{
  background:var(--ink-2);outline:1px solid var(--line);padding:1.1rem 1.3rem;
  display:flex;align-items:center;justify-content:space-between;
  gap:.8rem;font-size:.94rem;color:var(--muted);transition:background .3s,color .3s;
}
.index-grid a:hover{background:var(--surface-2);color:var(--text)}
.index-grid a small{font-family:var(--mono);font-size:.62rem;color:var(--dim);letter-spacing:.1em}
.paper .index-grid{background:#fff;border-color:var(--paper-line)}
.paper .index-grid a{background:#fff;outline-color:var(--paper-line);color:var(--paper-muted)}
.paper .index-grid a:hover{background:var(--paper-2);color:var(--paper-ink)}

/* Curseur personnalisé */
.cursor{
  position:fixed;top:0;left:0;width:28px;height:28px;border-radius:50%;
  border:1px solid rgba(255,255,255,.5);pointer-events:none;z-index:9999;
  transform:translate(-50%,-50%);transition:width .3s var(--e),height .3s var(--e),background .3s,border-color .3s,opacity .3s;
  mix-blend-mode:difference;opacity:0;
}
.cursor.on{opacity:1}
.cursor.grow{width:58px;height:58px;background:rgba(255,255,255,.9);border-color:transparent}
@media(hover:none),(pointer:coarse){.cursor{display:none}}

/* Bandeau d'appel mobile */
.mobile-cta{
  position:fixed;left:12px;right:12px;bottom:12px;z-index:880;display:none;gap:9px;
  padding:10px;border-radius:100px;background:rgba(10,10,17,.9);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--line);
  transform:translateY(140%);transition:transform .5s var(--e);
}
.mobile-cta.show{transform:translateY(0)}
.mobile-cta .btn{flex:1;padding:.8em 1em;font-size:.87rem}
@media(max-width:760px){.mobile-cta{display:flex}}

/* ---------- 24. ACCESSIBILITÉ / MOUVEMENT RÉDUIT ---------- */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .js .rv,.js .rv-s,.js [data-stagger]>*{opacity:1!important;transform:none!important}
  .js .rl>span{transform:none;opacity:1;animation:none}
  /* Le bandeau conserve son défilement : c'est un texte lisible, non un
     effet vestibulaire. En revanche l'inclinaison liée au scroll est coupée.
     ⚠️ La règle universelle ci-dessus impose animation-duration:.001ms!important
     à TOUT. Il faut donc réaffirmer explicitement le bandeau : le sélecteur
     .mq-track est plus spécifique que * et l'emporte à !important égal. */
  .mq{transform:none!important}
  .mq-track{
    animation-duration:46s!important;
    animation-iteration-count:infinite!important;
    animation-timing-function:linear!important;
  }
  .cta-band::before{animation:none}
  .hscroll-track{transform:none!important}
  .hscroll-sticky{position:static;height:auto}
  .hscroll-track{flex-wrap:wrap}
}
@media print{
  .hdr,.ftr-word,.grain,.cursor,.mobile-cta,.prog,#aurora{display:none!important}
  body{background:#fff;color:#000}
}

/* ============================================================================
   25. COUCHE D'ANIMATION AVANCÉE
   Transitions entre pages, révélation mot à mot, parallaxe, inclinaison 3D.
   Tout est neutralisé par prefers-reduced-motion (bloc en fin de fichier).
   ========================================================================== */

/* ---------- 25.1 TRANSITIONS ENTRE PAGES (View Transitions API) ----------
   Une navigation classique, mais le navigateur fond l'ancienne page dans la
   nouvelle. Aucun JavaScript, aucun routeur : le HTML statique reste intact,
   et les navigateurs qui ne gèrent pas l'API naviguent normalement.          */
@view-transition{ navigation:auto }

::view-transition-old(root){ animation:vtOut .26s cubic-bezier(.65,0,.35,1) both }
::view-transition-new(root){ animation:vtIn .46s cubic-bezier(.22,1,.36,1) both }
@keyframes vtOut{ to{ opacity:0; transform:translateY(-12px) scale(.992) } }
@keyframes vtIn { from{ opacity:0; transform:translateY(22px) scale(.994) } }

/* L'en-tête et le logo ne clignotent pas : ils traversent la transition */
.hdr{ view-transition-name:hdr }
.ftr{ view-transition-name:ftr }
::view-transition-old(hdr),::view-transition-new(hdr),
::view-transition-old(ftr),::view-transition-new(ftr){ animation:none; mix-blend-mode:normal }

/* ---------- 25.2 RÉVÉLATION MOT À MOT ---------- */
.js .split .w{
  display:inline-block; overflow:hidden; vertical-align:top;
  /* marge de sécurité : sans elle, l'overflow rogne accents et jambages */
  padding:.14em .06em .18em; margin:-.14em -.06em -.18em;
}
.js .split .wi{
  display:inline-block;
  transform:translateY(112%);
  transition:transform .82s var(--e);
  will-change:transform;
}
.js .split.in .wi{ transform:none }

/* ---------- 25.3 RÉVÉLATION PAR VOLET (titres en dégradé) ----------
   Le texte en dégradé ne supporte pas le découpage en mots : on l'ouvre
   par un volet vertical, ce qui préserve background-clip:text.             */
.js .wipe{
  clip-path:inset(0 0 105% 0);
  transition:clip-path 1.05s var(--e), opacity .5s ease;
  opacity:.001;
}
.js .wipe.in{ clip-path:inset(0 0 -12% 0); opacity:1 }

/* ---------- 25.4 PARALLAXE ET INERTIE ---------- */
.js [data-parallax]{ will-change:transform }
.js .skewable{ will-change:transform }

/* ---------- 25.5 INCLINAISON 3D DES CARTES PROJET ---------- */
.work{ transform-style:preserve-3d }
.work[data-tilt]{ transition:transform .55s var(--e), border-color .4s ease }
.work-vis{ transform:translateZ(0) }

/* Reflet qui suit le curseur sur les cartes projet */
.work-glare{
  position:absolute; inset:0; z-index:3; pointer-events:none; opacity:0;
  transition:opacity .45s ease;
  background:radial-gradient(340px circle at var(--gx,50%) var(--gy,50%),
             rgba(255,255,255,.16), transparent 62%);
}
.work:hover .work-glare{ opacity:1 }

/* ---------- 25.6 BALAYAGE LUMINEUX SUR LES BOUTONS ---------- */
.btn::before{
  content:""; position:absolute; top:0; bottom:0; width:42%; z-index:1;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.42),transparent);
  transform:translateX(-180%) skewX(-18deg); pointer-events:none;
}
.btn:hover::before{ animation:shine .85s var(--e) forwards }
@keyframes shine{ to{ transform:translateX(320%) skewX(-18deg) } }
.btn-grad:hover::before,.paper .btn:hover::before{
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.28),transparent);
}

/* ---------- 25.7 NAVIGATION CINÉTIQUE ---------- */
/* overflow ne s'applique pas a un element inline : le conteneur de rognage
   doit etre un inline-block ajuste a la hauteur de ligne. */
.nav a .nxw{ display:inline-block; overflow:hidden; vertical-align:bottom; line-height:1.35 }
.nav a .nx{ display:block; position:relative; transition:transform .42s var(--e) }
.nav a .nx::after{
  content:attr(data-t); position:absolute; left:0; top:100%; width:100%;
  color:var(--cyan); white-space:nowrap;
}
.nav a:hover .nx{ transform:translateY(-100%) }

/* ---------- 25.8 BORDURE ANIMÉE — CARTE MISE EN AVANT ---------- */
/* Bordure conique animée.
   On n'utilise NI ::before NI ::after : .card les emploie déjà (lueur au survol
   et flèche), et une surcouche fusionnerait avec leurs déclarations — dont un
   opacity:0 qui rendrait le fond invisible.
   Technique retenue : deux fonds superposés, l'un limité à la boîte de
   remplissage, l'autre à la boîte de bordure. Le dégradé n'apparaît donc que
   dans l'épaisseur de la bordure. */
@property --nx-angle{ syntax:'<angle>'; initial-value:0deg; inherits:false }

.card-hl{
  border:1.5px solid transparent;
  background:
    linear-gradient(var(--surface-2),var(--surface-2)) padding-box,
    conic-gradient(from var(--nx-angle),
      transparent, var(--brand), transparent 28%,
      var(--cyan), transparent 58%,
      var(--violet), transparent 86%) border-box;
  animation:nxSpin 7s linear infinite;
}
/* Sans la prise en charge de @property, l'angle ne s'anime pas : le dégradé
   reste fixe, ce qui demeure parfaitement lisible. */
@keyframes nxSpin{ to{ --nx-angle:360deg } }

/* ---------- 25.9 SOULIGNEMENT DES LIENS DE TEXTE ---------- */
.btn-txt{ position:relative }
.btn-txt::after{
  content:""; position:absolute; left:0; right:0; bottom:-3px; height:1px;
  background:currentColor; transform:scaleX(0); transform-origin:right;
  transition:transform .5s var(--e);
}
.btn-txt:hover::after{ transform:scaleX(1); transform-origin:left }

/* ---------- 25.10 COMPTEURS ET CHIFFRES ---------- */
.stat b{ transition:color .4s ease }
.stat:hover b{ color:var(--cyan) }

/* ---------- 25.11 CURSEUR — ÉTIQUETTE CONTEXTUELLE ---------- */
.cursor::after{
  content:attr(data-label); position:absolute; inset:0;
  display:grid; place-items:center; font-family:var(--mono); font-size:9px;
  letter-spacing:.1em; text-transform:uppercase; color:#06060A;
  opacity:0; transition:opacity .25s ease; white-space:nowrap;
}
.cursor.labeled{
  width:86px; height:86px; background:var(--cyan); border-color:transparent;
  mix-blend-mode:normal;
}
.cursor.labeled::after{ opacity:1 }

/* ---------- 25.12 NEUTRALISATION SI MOUVEMENT RÉDUIT ---------- */
@media(prefers-reduced-motion:reduce){
  @view-transition{ navigation:none }
  ::view-transition-old(root),::view-transition-new(root){ animation:none }
  .js .split .wi{ transform:none!important; transition:none }
  .js .wipe{ clip-path:none!important; opacity:1!important; transition:none }
  .js [data-parallax],.js .skewable{ transform:none!important; will-change:auto }
  .btn:hover::before{ animation:none }
  .card-hl{ animation:none }
  .nav a:hover .nx{ transform:none }
}