/* =====================================================================
   TEAM KAIRO — feuille de style commune
   Univers « Arène nocturne » : nuit, bleu électrique, éclats de verre
   ===================================================================== */
:root{
  --nuit:#050b18;
  --nuit-2:#081226;
  --marine:#0A1A3A;
  --bleu:#1E6BFF;
  --bleu-2:#3d86ff;
  --bleu-glow:rgba(30,107,255,.55);
  --orange:#ff7a1a;
  --blanc:#f3f7ff;
  --texte:#c9d6ef;
  --muted:#7f93bb;
  --ligne:rgba(120,160,255,.16);
  --verre:rgba(14,30,66,.55);
  --f-marker:'Permanent Marker',cursive;
  --f-script:'Kaushan Script',cursive;
  --f-cond:'Barlow Condensed',sans-serif;
  --f-body:'Barlow',system-ui,sans-serif;
  --ease:cubic-bezier(.16,1,.3,1);
  --gutter:clamp(16px,4vw,56px);
  color-scheme:dark;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--nuit);color:var(--texte);font-family:var(--f-body);font-size:17px;line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
::selection{background:var(--bleu);color:#fff}
:focus-visible{outline:2px solid var(--bleu-2);outline-offset:3px;border-radius:4px}
.sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- Transitions entre pages (navigateurs récents) ---------- */
@view-transition{navigation:auto}
::view-transition-old(root){animation:vt-out .45s var(--ease) both}
::view-transition-new(root){animation:vt-in .6s var(--ease) both}
@keyframes vt-out{to{opacity:0;transform:scale(.96);filter:blur(6px)}}
@keyframes vt-in{from{opacity:0;clip-path:polygon(0 0,0 0,0 100%,0 100%)}to{opacity:1;clip-path:polygon(0 0,100% 0,100% 100%,0 100%)}}

/* ---------- Fond vivant : grain + lueurs ---------- */
.fond{position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(60vw 50vh at 85% 10%,rgba(30,107,255,.20),transparent 70%),
    radial-gradient(50vw 50vh at 0% 90%,rgba(30,107,255,.12),transparent 70%),
    linear-gradient(180deg,#050b18,#071022 60%,#050b18)}
.grain{position:fixed;inset:-50%;z-index:9998;pointer-events:none;opacity:.06;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation:grain 1.2s steps(6) infinite}
@keyframes grain{0%{transform:translate(0,0)}20%{transform:translate(-4%,3%)}40%{transform:translate(3%,-5%)}60%{transform:translate(-6%,1%)}80%{transform:translate(4%,6%)}100%{transform:translate(0,0)}}

/* ---------- Curseur « cochonnet » ---------- */
.curseur,.curseur-point{position:fixed;top:0;left:0;z-index:9999;pointer-events:none;border-radius:50%;transform:translate(-50%,-50%)}
.curseur{width:42px;height:42px;border:1.5px solid rgba(61,134,255,.7);transition:width .35s var(--ease),height .35s var(--ease),background .35s,border-color .35s;display:grid;place-items:center;mix-blend-mode:screen}
.curseur span{font:800 11px/1 var(--f-cond);letter-spacing:2px;color:#fff;opacity:0;transition:opacity .2s}
.curseur.actif{width:78px;height:78px;background:rgba(30,107,255,.25);border-color:var(--bleu-2)}
.curseur.texte{width:96px;height:96px;background:var(--bleu);border-color:var(--bleu)}
.curseur.texte span{opacity:1}
.curseur-point{width:8px;height:8px;background:var(--orange);box-shadow:0 0 12px var(--orange)}
@media (hover:none),(pointer:coarse){.curseur,.curseur-point{display:none}}

/* ---------- Préchargement (première visite) ---------- */
.prechargement{position:fixed;inset:0;z-index:10000;background:var(--nuit);display:grid;place-items:center;overflow:hidden}
.prechargement .pl-logo{width:min(46vw,220px);opacity:0;transform:scale(.8);animation:pl-logo 1s var(--ease) .1s forwards;filter:drop-shadow(0 0 30px var(--bleu-glow))}
.prechargement .pl-compteur{position:absolute;right:var(--gutter);bottom:var(--gutter);font:800 clamp(64px,14vw,180px)/.8 var(--f-cond);color:transparent;-webkit-text-stroke:1.5px var(--bleu-2)}
.prechargement .pl-devise{position:absolute;left:var(--gutter);bottom:calc(var(--gutter) + 6px);font:400 clamp(20px,3vw,30px) var(--f-script);color:var(--bleu-2)}
.prechargement .pl-trait{position:absolute;left:0;bottom:0;height:4px;width:0;background:var(--bleu);box-shadow:0 0 20px var(--bleu)}
.prechargement.fin{animation:pl-out .9s var(--ease) forwards}
@keyframes pl-logo{to{opacity:1;transform:none}}
@keyframes pl-out{to{clip-path:polygon(0 0,100% 0,100% 0,0 0)}}
.prechargement{clip-path:polygon(0 0,100% 0,100% 100%,0 100%)}

/* ---------- En-tête & navigation ---------- */
.entete{position:fixed;inset:0 0 auto;z-index:500;display:flex;align-items:center;justify-content:space-between;padding:14px var(--gutter);transition:background .4s,backdrop-filter .4s,padding .4s}
.entete.colle{background:rgba(5,11,24,.72);backdrop-filter:blur(14px) saturate(1.4);-webkit-backdrop-filter:blur(14px) saturate(1.4);padding-top:8px;padding-bottom:8px;border-bottom:1px solid var(--ligne)}
.marque{display:flex;align-items:center;gap:12px}
.marque img{width:54px;height:auto;filter:drop-shadow(0 0 12px var(--bleu-glow));transition:transform .5s var(--ease)}
.marque:hover img{transform:rotate(-8deg) scale(1.08)}
.marque b{font:400 22px/1 var(--f-marker);color:#fff;letter-spacing:.5px}
.marque b span{color:var(--bleu-2)}
.nav{display:flex;align-items:center;gap:4px}
.nav a{position:relative;font:700 15px/1 var(--f-cond);letter-spacing:1.6px;text-transform:uppercase;padding:12px 14px;color:var(--texte);transition:color .25s}
.nav a::after{content:"";position:absolute;left:14px;right:14px;bottom:6px;height:3px;background:var(--bleu);transform:scaleX(0) skewX(-30deg);transform-origin:right;transition:transform .45s var(--ease)}
.nav a:hover,.nav a[aria-current=page]{color:#fff}
.nav a:hover::after,.nav a[aria-current=page]::after{transform:scaleX(1) skewX(-30deg);transform-origin:left}
.nav .btn{margin-left:10px}
.burger{display:none;width:48px;height:48px;position:relative;z-index:520}
.burger i{position:absolute;left:12px;right:12px;height:2.5px;background:#fff;border-radius:2px;transition:transform .45s var(--ease),opacity .3s}
.burger i:nth-child(1){top:17px}.burger i:nth-child(2){top:23px;right:18px}.burger i:nth-child(3){top:29px}
.menu-ouvert .burger i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-ouvert .burger i:nth-child(2){opacity:0}
.menu-ouvert .burger i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

@media (max-width:1080px){
  .burger{display:block}
  .nav{position:fixed;inset:0;z-index:510;flex-direction:column;justify-content:center;align-items:flex-start;gap:0;padding:90px var(--gutter) 40px;background:
     radial-gradient(80vw 60vh at 100% 0,rgba(30,107,255,.35),transparent 70%),var(--nuit);
     clip-path:circle(0 at calc(100% - 40px) 38px);transition:clip-path .8s var(--ease);visibility:hidden}
  .menu-ouvert .nav{clip-path:circle(150% at calc(100% - 40px) 38px);visibility:visible}
  .nav a{font:400 clamp(30px,8vw,52px)/1.15 var(--f-marker);letter-spacing:0;text-transform:none;padding:8px 0;opacity:0;transform:translateX(-30px);transition:opacity .5s,transform .6s var(--ease),color .2s}
  .nav a::after{left:0;right:auto;width:60px;bottom:4px}
  .menu-ouvert .nav a{opacity:1;transform:none}
  .menu-ouvert .nav a:nth-child(2){transition-delay:.05s}.menu-ouvert .nav a:nth-child(3){transition-delay:.1s}
  .menu-ouvert .nav a:nth-child(4){transition-delay:.15s}.menu-ouvert .nav a:nth-child(5){transition-delay:.2s}
  .menu-ouvert .nav a:nth-child(6){transition-delay:.25s}.menu-ouvert .nav a:nth-child(7){transition-delay:.3s}
  .nav .btn{margin:24px 0 0;font:800 18px/1 var(--f-cond)}
}

/* ---------- Boutons ---------- */
.btn{--c:var(--bleu);position:relative;display:inline-flex;align-items:center;gap:10px;padding:16px 26px;font:800 16px/1 var(--f-cond);letter-spacing:1.8px;text-transform:uppercase;color:#fff;background:var(--c);clip-path:polygon(0 10%,96% 0,100% 55%,97% 100%,2% 92%);transition:transform .4s var(--ease),filter .3s;isolation:isolate;overflow:hidden;will-change:transform}
.btn::before{content:"";position:absolute;inset:0;background:linear-gradient(110deg,transparent 30%,rgba(255,255,255,.55) 50%,transparent 70%);transform:translateX(-120%);transition:transform .8s var(--ease);z-index:-1}
.btn:hover::before{transform:translateX(120%)}
.btn:hover{filter:drop-shadow(0 8px 24px var(--bleu-glow))}
.btn svg{width:18px;height:18px;transition:transform .4s var(--ease)}
.btn:hover svg{transform:translateX(4px)}
.btn.contour{background:transparent;clip-path:none;border:1.5px solid rgba(255,255,255,.35);border-radius:999px}
.btn.contour:hover{border-color:var(--bleu-2);background:rgba(30,107,255,.12)}
.btn.orange{--c:var(--orange)}
.btn.petit{padding:12px 18px;font-size:14px}

/* ---------- Structure ---------- */
main{position:relative;z-index:1;overflow-x:clip}  /* sur mobile, les bandeaux inclinés et la fracture ne doivent pas élargir la page */
.section{position:relative;padding:clamp(90px,14vh,170px) var(--gutter)}
.conteneur{max-width:1320px;margin:0 auto}
.surtitre{display:inline-flex;align-items:center;gap:12px;font:800 14px/1 var(--f-cond);letter-spacing:4px;text-transform:uppercase;color:var(--bleu-2)}
.surtitre::before{content:"";width:34px;height:3px;background:var(--bleu);transform:skewX(-30deg);box-shadow:0 0 12px var(--bleu)}
.titre{font:400 clamp(40px,7vw,104px)/.98 var(--f-marker);color:#fff;letter-spacing:-.5px;margin:18px 0 26px}
.titre em{font-style:normal;color:var(--bleu-2);text-shadow:0 0 40px var(--bleu-glow)}
.titre.moyen{font-size:clamp(34px,5vw,70px)}
.script{font:400 clamp(24px,3vw,38px)/1.15 var(--f-script);color:var(--bleu-2)}
.chapo{font-size:clamp(17px,1.5vw,21px);max-width:62ch;color:var(--texte)}
.chapo strong{color:#fff}
.trait-pinceau{display:block;height:6px;width:220px;background:var(--bleu);border-radius:4px;transform:skewX(-30deg);box-shadow:0 0 18px var(--bleu)}

/* ---------- Révélations au défilement ---------- */
.rv{opacity:0;transform:translateY(40px);transition:opacity 1s var(--ease),transform 1.1s var(--ease)}
.rv.vu{opacity:1;transform:none}
.rv-d1{transition-delay:.1s}.rv-d2{transition-delay:.2s}.rv-d3{transition-delay:.3s}.rv-d4{transition-delay:.4s}
.lettres .l{display:inline-block;opacity:0;transform:translateY(.6em) rotate(8deg);transition:opacity .7s var(--ease),transform .9s var(--ease)}
.lettres.vu .l{opacity:1;transform:none}
.balaye{position:relative;display:inline-block}
.balaye::after{content:"";position:absolute;inset:-4% -2%;background:var(--bleu);transform-origin:left;transform:scaleX(0);z-index:2}
.balaye.vu::after{animation:balaye 1.1s var(--ease) forwards}
.balaye>*{opacity:0}.balaye.vu>*{animation:apparait 0s .55s forwards}
@keyframes balaye{0%{transform:scaleX(0);transform-origin:left}50%{transform:scaleX(1);transform-origin:left}50.1%{transform-origin:right}100%{transform:scaleX(0);transform-origin:right}}
@keyframes apparait{to{opacity:1}}

/* ---------- Bandeau défilant (hashtags) ---------- */
.bandeau{position:relative;z-index:2;overflow:hidden;background:var(--bleu);transform:rotate(-2.5deg) scale(1.04);padding:16px 0;box-shadow:0 20px 60px rgba(30,107,255,.35)}
.bandeau.inverse{background:transparent;transform:rotate(2deg) scale(1.04);border-block:1px solid var(--ligne);margin-top:-40px}
.bandeau .piste{display:flex;width:max-content;animation:defile 32s linear infinite}
.bandeau.inverse .piste{animation-direction:reverse;animation-duration:40s}
.bandeau span{font:400 clamp(24px,3vw,40px)/1 var(--f-marker);color:#fff;padding:0 28px;white-space:nowrap;display:flex;align-items:center;gap:28px}
.bandeau.inverse span{color:transparent;-webkit-text-stroke:1px rgba(160,190,255,.55)}
.bandeau span::after{content:"";width:18px;height:18px;border-radius:50%;background:radial-gradient(circle at 35% 30%,#fff,#9fb6d8 40%,#4a5a78 75%);box-shadow:0 0 10px rgba(255,255,255,.4)}
@keyframes defile{to{transform:translateX(-50%)}}

/* ---------- Héros des pages internes ---------- */
.hero-page{position:relative;min-height:78vh;display:flex;align-items:flex-end;padding:150px var(--gutter) 80px;overflow:hidden}
.hero-page .decor{position:absolute;inset:0;z-index:-1;background-size:cover;background-position:center;opacity:.42;mix-blend-mode:screen;transform:scale(1.1);animation:respire 14s ease-in-out infinite alternate;-webkit-mask-image:linear-gradient(180deg,#000 40%,transparent 100%);mask-image:linear-gradient(180deg,#000 40%,transparent 100%)}
@keyframes respire{to{transform:scale(1.2) translate(-2%,1%)}}
.hero-page .geant{position:absolute;right:-2vw;top:90px;z-index:-1;font:400 clamp(110px,22vw,340px)/.8 var(--f-marker);color:transparent;-webkit-text-stroke:1.5px rgba(61,134,255,.25);white-space:nowrap;pointer-events:none;user-select:none}
.hero-page .titre{font-size:clamp(52px,10vw,150px)}
.fil{font:700 13px/1 var(--f-cond);letter-spacing:2.5px;text-transform:uppercase;color:var(--muted);margin-bottom:18px}
.fil a:hover{color:#fff}

/* ---------- Éclats de verre (transition de section) ---------- */
.fracture{position:absolute;left:0;right:0;height:60vh;pointer-events:none;z-index:0;background:url(../img/fracture.webp) center/cover;mix-blend-mode:screen;opacity:0;transition:opacity 1.6s var(--ease),transform 2s var(--ease);transform:scale(1.25);-webkit-mask-image:radial-gradient(ellipse at center,#000 10%,transparent 65%);mask-image:radial-gradient(ellipse at center,#000 10%,transparent 65%)}
.fracture.vu{opacity:.55;transform:scale(1)}

/* ---------- Cartes verre ---------- */
.carte-verre{position:relative;background:linear-gradient(160deg,rgba(20,40,90,.55),rgba(8,18,40,.65));border:1px solid var(--ligne);border-radius:22px;padding:34px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);overflow:hidden;transition:transform .6s var(--ease),border-color .4s}
.carte-verre::before{content:"";position:absolute;inset:0;background:radial-gradient(400px circle at var(--mx,50%) var(--my,50%),rgba(61,134,255,.22),transparent 45%);opacity:0;transition:opacity .4s;pointer-events:none}
.carte-verre:hover::before{opacity:1}
.carte-verre:hover{border-color:rgba(61,134,255,.45)}

/* ---------- Bande d'appel avant le pied ---------- */
.appel{position:relative;margin:0 var(--gutter);border-radius:30px;overflow:hidden;padding:clamp(56px,9vw,120px) clamp(24px,6vw,90px);background:linear-gradient(120deg,#0d2a6e,#1E6BFF 55%,#0b1d4a);isolation:isolate}
.appel::before{content:"";position:absolute;inset:0;background:url(../img/fracture.webp) center/cover;mix-blend-mode:screen;opacity:.35;z-index:-1}
.appel::after{content:"KAIRO";position:absolute;right:-3%;bottom:-18%;font:400 clamp(140px,24vw,360px)/1 var(--f-marker);color:rgba(255,255,255,.08);z-index:-1;pointer-events:none}
.appel .titre{margin:10px 0 18px}
.appel p{color:#e6eeff;max-width:56ch;font-size:19px}
.appel .actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.appel .btn{--c:#fff;color:var(--marine)}
.appel .btn.contour{color:#fff}

/* ---------- Pied de page ---------- */
.pied{position:relative;padding:110px var(--gutter) 40px;margin-top:110px;border-top:1px solid var(--ligne);overflow:hidden}
.pied .geant{font:400 clamp(80px,19vw,300px)/.8 var(--f-marker);color:transparent;-webkit-text-stroke:1px rgba(61,134,255,.22);text-align:center;white-space:nowrap;margin-bottom:60px;user-select:none}
.pied-grille{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;max-width:1320px;margin:0 auto}
.pied h4{font:800 14px/1 var(--f-cond);letter-spacing:3px;text-transform:uppercase;color:var(--bleu-2);margin-bottom:18px}
.pied li{list-style:none;margin:8px 0}
.pied li a{color:var(--texte);transition:color .2s,padding .3s var(--ease)}
.pied li a:hover{color:#fff;padding-left:6px}
.pied .devise{font:400 26px/1.15 var(--f-script);color:#fff;margin:16px 0}
.pied .devise b{color:var(--bleu-2);font-weight:400}
.pied .bas{max-width:1320px;margin:60px auto 0;padding-top:24px;border-top:1px solid var(--ligne);display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:14px;color:var(--muted)}
.pied .bas a:hover{color:#fff}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tags span{font:700 13px/1 var(--f-cond);letter-spacing:1px;padding:8px 12px;border:1px solid var(--ligne);border-radius:999px;color:var(--bleu-2)}
@media (max-width:900px){.pied-grille{grid-template-columns:1fr 1fr}.pied-grille>div:first-child{grid-column:1/-1}}
@media (max-width:520px){.pied-grille{grid-template-columns:1fr}}

/* ---------- Formulaires ---------- */
.champ{position:relative;margin-bottom:18px}
.champ input,.champ textarea,.champ select{width:100%;font:500 17px var(--f-body);color:#fff;background:rgba(8,18,40,.7);border:1px solid var(--ligne);border-radius:14px;padding:24px 18px 10px;transition:border-color .3s,box-shadow .3s;appearance:none}
.champ textarea{min-height:150px;resize:vertical}
.champ select{padding-top:24px;background-image:linear-gradient(45deg,transparent 50%,var(--bleu-2) 50%),linear-gradient(135deg,var(--bleu-2) 50%,transparent 50%);background-position:calc(100% - 22px) 55%,calc(100% - 16px) 55%;background-size:6px 6px;background-repeat:no-repeat}
.champ label{position:absolute;left:18px;top:17px;font:600 16px var(--f-body);color:var(--muted);pointer-events:none;transition:all .25s var(--ease)}
.champ input:focus,.champ textarea:focus,.champ select:focus{outline:0;border-color:var(--bleu);box-shadow:0 0 0 4px rgba(30,107,255,.18)}
.champ input:focus+label,.champ input:not(:placeholder-shown)+label,.champ textarea:focus+label,.champ textarea:not(:placeholder-shown)+label,.champ select+label{top:8px;font-size:12px;letter-spacing:1px;text-transform:uppercase;color:var(--bleu-2)}
.deux{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}
@media (max-width:640px){.deux{grid-template-columns:1fr}}
.puces{display:flex;flex-wrap:wrap;gap:10px}
.puce input{position:absolute;opacity:0;pointer-events:none}
.puce span{display:inline-block;padding:11px 18px;border:1px solid var(--ligne);border-radius:999px;font:700 15px var(--f-cond);letter-spacing:1px;text-transform:uppercase;cursor:pointer;transition:all .3s var(--ease)}
.puce input:checked+span{background:var(--bleu);border-color:var(--bleu);color:#fff;box-shadow:0 6px 20px var(--bleu-glow)}
.puce input:focus-visible+span{outline:2px solid var(--bleu-2);outline-offset:2px}
.message-ok{display:none;margin-top:16px;padding:16px 18px;border-radius:14px;background:rgba(30,107,255,.15);border:1px solid var(--bleu);color:#fff}
.message-ok.on{display:block}

/* ---------- Préférences de mouvement ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .rv,.lettres .l,.balaye>*{opacity:1!important;transform:none!important}
  .grain{display:none}
}