/* ============================================================
   LUMIN-ART PRODUCTIONS — design system
   AJ Web Studio · août 2026
   Fondé sur le guide d'identité visuelle, hiver 2026
   ============================================================ */

:root{
  /* palette — guide d'identité */
  --cyan:#00AEEF;      /* primaire */
  --orange:#F15A29;    /* primaire */
  --blue:#255A8C;      /* secondaire */
  --amber:#F1B164;     /* secondaire */
  --sky:#95D4F7;       /* accent */
  --navy:#060F3C;      /* accent */
  --gold:#EE9D3D;      /* accent */
  --ink:#03071A;       /* fond principal */
  --ink-2:#0A1233;     /* fond alterné — plan surélevé */
  --line:rgba(149,212,247,.14);
  --line-2:rgba(149,212,247,.28);
  --txt:#D7E2F5;
  --txt-dim:#8FA0C4;
  --txt-mute:#71809E;
  --white:#fff;

  /* signature */
  --tilt:-20deg;

  /* typographie */
  --font:'Archivo','Helvetica Neue',Arial,Helvetica,sans-serif;
  --ease:cubic-bezier(.16,1,.3,1);
  --ease-io:cubic-bezier(.65,0,.35,1);

  /* rythme */
  --gut:clamp(1.5rem,5vw,5.5rem);
  --sec:clamp(6rem,14vh,11rem);
  --max:1480px;
  --rail:78px;
}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;overflow-x:clip}
body{
  font-family:var(--font);font-size:16px;line-height:1.65;
  background:var(--ink);color:var(--txt);
  overflow-x:clip;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
::selection{background:var(--cyan);color:var(--ink)}
img,video,svg{display:block;max-width:100%}
a{color:inherit}
button{font:inherit;cursor:pointer;background:none;border:none;color:inherit}

/* ---------- typographie ---------- */
.display,h1,h2{
  font-weight:900;text-transform:uppercase;
  line-height:.9;letter-spacing:-.025em;color:var(--white);
}
h1{font-size:clamp(3rem,9vw,8.5rem)}
h2{font-size:clamp(2.2rem,5.6vw,5rem)}
h3{font-size:clamp(1.4rem,2.4vw,2.1rem);font-weight:800;color:var(--white);line-height:1.1;letter-spacing:-.01em}
.mega{font-size:clamp(4rem,15vw,17rem);line-height:.86}
.lede{font-size:clamp(1.05rem,1.5vw,1.35rem);color:var(--txt);max-width:38ch;line-height:1.55}
p{max-width:66ch}
.dim{color:var(--txt-dim)}
.mute{color:var(--txt-mute)}
.num{font-variant-numeric:tabular-nums}
.eyebrow{
  font-size:.7rem;letter-spacing:.34em;text-transform:uppercase;
  color:var(--cyan);font-weight:600;display:flex;align-items:center;gap:.9rem;
}
.eyebrow::before{
  content:"";width:26px;height:15px;border:1px solid var(--cyan);
  border-radius:50%;transform:rotate(var(--tilt));flex:0 0 auto;
}
.eyebrow.solo::before{display:none}

/* ---------- structure ---------- */
.shell{max-width:var(--max);margin-inline:auto;padding-inline:var(--gut);width:100%}
section{position:relative;padding-block:var(--sec)}
.alt{background:linear-gradient(to bottom,rgba(149,212,247,.035),transparent 10rem),radial-gradient(ellipse 85% 60% at 10% 0%,rgba(0,174,239,.07),transparent 55%),radial-gradient(ellipse 70% 55% at 100% 100%,rgba(241,90,41,.05),transparent 60%),var(--ink-2);border-block:1px solid var(--line)}
.hr{height:1px;background:var(--line);border:0;margin-block:0}
.split{display:grid;grid-template-columns:repeat(12,1fr);gap:clamp(1.5rem,3vw,3rem)}
@media(max-width:900px){.split{grid-template-columns:1fr}}

/* ---------- ellipse — système de masque ---------- */
.em{border-radius:50%;transform:rotate(var(--tilt));overflow:hidden;position:relative;background:linear-gradient(130deg,var(--blue),var(--navy))}
.em>img,.em>video{position:absolute;top:-9%;left:-9%;width:118%;height:118%;object-fit:cover;transform:rotate(20deg);transition:transform 1s var(--ease)}
.ring{position:absolute;border:1px solid var(--line-2);border-radius:50%;transform:rotate(var(--tilt));pointer-events:none}

/* ---------- boutons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.85rem;
  font-weight:800;text-transform:uppercase;letter-spacing:.06em;font-size:.82rem;
  padding:1.15rem 2.2rem;border-radius:60px;text-decoration:none;
  transition:transform .5s var(--ease),box-shadow .5s var(--ease),background .3s,color .3s;
  will-change:transform;position:relative;
}
.btn--fill{background:linear-gradient(120deg,var(--orange),var(--gold));color:#fff;box-shadow:0 10px 34px rgba(241,90,41,.3),inset 0 1px 0 rgba(255,255,255,.28)}
.btn--fill:hover{box-shadow:0 18px 52px rgba(241,90,41,.5),0 0 34px rgba(241,90,41,.35),inset 0 1px 0 rgba(255,255,255,.28)}
.btn--ghost{border:1px solid rgba(149,212,247,.45);color:var(--sky);background:rgba(3,7,26,.55)}
.btn--ghost:hover{border-color:var(--cyan);color:var(--white);background:rgba(0,174,239,.06)}
.btn i{width:16px;height:9px;border-radius:50%;background:currentColor;transform:rotate(var(--tilt));flex:0 0 auto;transition:transform .5s var(--ease)}
.btn:hover i{transform:rotate(var(--tilt)) translateX(4px)}

.link{
  text-decoration:none;display:inline-flex;align-items:center;gap:.7rem;
  font-weight:700;text-transform:uppercase;letter-spacing:.12em;font-size:.74rem;color:var(--cyan);
  padding-bottom:.35rem;background-image:linear-gradient(var(--cyan),var(--cyan));
  background-repeat:no-repeat;background-position:0 100%;background-size:0% 1px;
  transition:background-size .6s var(--ease),color .3s;
}
.link:hover{background-size:100% 1px;color:var(--white)}

/* ---------- barre latérale / navigation ---------- */
.rail{
  position:fixed;inset:0 auto 0 0;width:var(--rail);z-index:80;
  display:flex;flex-direction:column;align-items:center;justify-content:space-between;
  padding-block:1.4rem;border-right:1px solid var(--line);
  background:rgba(3,7,26,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.rail__logo img{width:46px}
.rail__nav{display:flex;flex-direction:column;gap:1.55rem}
.rail__nav a{
  writing-mode:vertical-rl;transform:rotate(180deg);text-decoration:none;
  font-size:.66rem;letter-spacing:.24em;text-transform:uppercase;color:var(--txt-mute);
  font-weight:600;transition:color .35s;display:flex;align-items:center;gap:.5rem;
}
.rail__nav a::before{content:"";width:5px;height:5px;border-radius:50%;background:transparent;transition:background .35s}
.rail__nav a:hover{color:var(--sky)}
.rail__nav a[aria-current="page"]{color:var(--cyan)}
.rail__nav a[aria-current="page"]::before{background:var(--cyan)}
.rail__foot{display:flex;flex-direction:column;align-items:center;gap:1rem}
.lang{font-size:.6rem;letter-spacing:.2em;color:var(--txt-mute);text-decoration:none;font-weight:700}
.lang:hover{color:var(--sky)}

/* son */
.snd{display:flex;align-items:flex-end;gap:3px;height:20px;width:26px}
.snd span{width:3.5px;background:var(--cyan);border-radius:2px;height:26%;transition:background .3s}
.snd.is-on span{animation:eq 1.05s ease-in-out infinite alternate}
.snd.is-on span:nth-child(2){animation-delay:.16s}
.snd.is-on span:nth-child(3){animation-delay:.34s}
.snd.is-on span:nth-child(4){animation-delay:.08s}
.snd.is-off span{background:var(--txt-mute);animation:none}
@keyframes eq{from{height:20%}to{height:100%}}

.page{margin-left:var(--rail)}

@media(max-width:1024px){
  :root{--rail:0px}
  .rail{
    inset:0 0 auto 0;width:100%;height:60px;flex-direction:row;
    padding-inline:1.2rem;border-right:0;border-bottom:1px solid var(--line);
  }
  .rail__logo img{width:38px}
  .rail__nav{flex-direction:row;gap:1.1rem;overflow-x:auto;scrollbar-width:none}
  .rail__nav::-webkit-scrollbar{display:none}
  .rail__nav a{writing-mode:horizontal-tb;transform:none;font-size:.6rem;letter-spacing:.14em}
  .rail__foot{flex-direction:row}
  .page{margin-left:0;padding-top:60px}
}

/* ---------- pied de page ---------- */
.foot{position:relative;background:radial-gradient(ellipse 70% 42% at 50% 0%,rgba(0,174,239,.08),transparent 65%),#010310;padding-block:clamp(4rem,9vh,7rem) 2.5rem}
.foot::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(0,174,239,.6) 30%,rgba(241,90,41,.5) 70%,transparent)}
.foot__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:3rem;align-items:start}
.foot img.mark{width:130px;margin-bottom:1.4rem;opacity:.9}
.foot h4{font-size:.68rem;letter-spacing:.24em;text-transform:uppercase;color:var(--txt-mute);margin-bottom:1.1rem;font-weight:700}
.foot ul{list-style:none;display:flex;flex-direction:column;gap:.6rem}
.foot a{text-decoration:none;color:var(--txt-dim);font-size:.9rem;transition:color .3s}
.foot a:hover{color:var(--cyan)}
.foot__bar{margin-top:clamp(3rem,6vh,4.5rem);padding-top:1.6rem;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:1.5rem;flex-wrap:wrap;font-size:.72rem;color:var(--txt-mute)}
.proto{color:var(--amber)}
@media(max-width:800px){.foot__grid{grid-template-columns:1fr;gap:2.2rem}}

/* ---------- marquee ---------- */
.mq{overflow:clip;border-block:1px solid var(--line);padding-block:1.15rem;background:linear-gradient(180deg,rgba(6,15,60,.35),rgba(3,7,26,.5));-webkit-mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent);mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent)}
.mq__in{display:flex;width:max-content;white-space:nowrap;animation:mq 42s linear infinite}
.mq:hover .mq__in{animation-play-state:paused}
.mq b{font-size:clamp(.95rem,1.6vw,1.35rem);font-weight:800;text-transform:uppercase;letter-spacing:.04em;color:var(--white);padding-inline:1.1rem}
.mq s{text-decoration:none;color:var(--orange)}
@keyframes mq{to{transform:translateX(-50%)}}

/* ---------- révélations ---------- */
.rv{opacity:0;transform:translateY(30px);transition:opacity 1s var(--ease),transform 1s var(--ease)}
.rv.on{opacity:1;transform:none}
[data-d="1"]{transition-delay:.1s}[data-d="2"]{transition-delay:.2s}
[data-d="3"]{transition-delay:.3s}[data-d="4"]{transition-delay:.4s}
.iris{clip-path:ellipse(10% 6% at 50% 50%);transition:clip-path 1.4s var(--ease-io)}
.iris.on{clip-path:ellipse(105% 105% at 50% 50%)}
.lines span{display:block;overflow:hidden;padding-top:.12em;margin-top:-.12em}
.lines span i{display:block;font-style:normal;transform:translateY(110%);transition:transform 1.1s var(--ease)}
.lines.on span i{transform:none}
.lines.on span:nth-child(2) i{transition-delay:.09s}
.lines.on span:nth-child(3) i{transition-delay:.18s}

/* ---------- curseur ---------- */
.cur,.cur-r{position:fixed;top:0;left:0;z-index:200;pointer-events:none;display:none}
@media(pointer:fine){.cur,.cur-r{display:block}}
.cur{width:5px;height:5px;border-radius:50%;background:var(--cyan)}
.cur-r{
  width:40px;height:24px;border:1px solid rgba(0,174,239,.55);border-radius:50%;
  transition:width .45s var(--ease),height .45s var(--ease),background .45s,border-color .45s;
}
.cur-r.spot{width:150px;height:94px;background:radial-gradient(closest-side,rgba(255,246,224,.16),transparent);border-color:rgba(241,177,100,.55)}

/* ---------- transition de page ---------- */
.wipe{
  position:fixed;inset:0;z-index:300;background:var(--ink);pointer-events:none;
  clip-path:ellipse(0% 0% at 50% 50%);
}
.wipe.in{clip-path:ellipse(150% 150% at 50% 50%);transition:clip-path .75s var(--ease-io)}
.wipe.out{clip-path:ellipse(0% 0% at 50% 50%);transition:clip-path .85s var(--ease-io)}
body.is-leaving main{opacity:.4;transition:opacity .4s}

/* ---------- grain ---------- */
.grain{position:fixed;inset:0;z-index:190;pointer-events:none;opacity:.045;mix-blend-mode:overlay;background:url("../img/overlay-grain.png")}

/* ---------- chargeur ---------- */
.boot{position:fixed;inset:0;z-index:400;background:var(--ink);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2rem;transition:clip-path 1.1s var(--ease-io),visibility 1.1s}
.boot img{width:min(46vw,260px);opacity:.95}
.boot__bar{width:min(52vw,320px);height:1px;background:var(--line);position:relative;overflow:hidden}
.boot__bar i{position:absolute;inset:0 100% 0 0;background:var(--cyan);transition:right .2s linear}
.boot__n{font-size:.72rem;letter-spacing:.3em;color:var(--txt-mute);text-transform:uppercase}
.boot.done{clip-path:ellipse(0% 0% at 50% 50%);visibility:hidden}

/* ---------- badge prototype ---------- */
.tag{
  position:fixed;bottom:1rem;right:1rem;z-index:180;
  background:rgba(241,90,41,.92);color:#fff;font-size:.6rem;font-weight:800;
  letter-spacing:.14em;text-transform:uppercase;padding:.5rem 1rem;border-radius:40px;
  backdrop-filter:blur(6px);
}

/* ---------- cartes ---------- */
.card{
  position:relative;border:1px solid rgba(149,212,247,.2);border-radius:20px;overflow:hidden;
  background:linear-gradient(160deg,rgba(37,90,140,.24),rgba(7,13,40,.75) 55%,rgba(3,7,26,.55));
  box-shadow:inset 0 1px 0 rgba(149,212,247,.1),0 14px 40px rgba(0,0,0,.35);
  transition:transform .7s var(--ease),border-color .5s,box-shadow .7s var(--ease);
}
.card:hover{transform:translateY(-8px);border-color:rgba(0,174,239,.5);box-shadow:inset 0 1px 0 rgba(149,212,247,.16),0 30px 70px rgba(0,0,0,.5),0 0 44px rgba(0,174,239,.14)}
.card__media{aspect-ratio:16/10;overflow:hidden}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform 1.1s var(--ease),filter .6s}
.card:hover .card__media img{transform:scale(1.06)}
.card__body{padding:clamp(1.4rem,2.4vw,2.2rem)}

/* ---------- accessibilité ---------- */
.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .rv,.iris,.lines span i{opacity:1!important;transform:none!important;clip-path:none!important}
  .mq__in,.snd.is-on span{animation:none!important}
  .cur,.cur-r{display:none!important}
  *{transition-duration:.01ms!important;animation-duration:.01ms!important}
}

@media(min-width:1440px){body{font-size:17px}}