/* Simplexia — feuille de style principale */
:root{
  --bg:#0f1730;
  --bg-2:#131e3c;
  --panel:#1b2748;
  --panel-2:#22305a;
  --line:rgba(255,255,255,.14);
  --line-strong:rgba(255,255,255,.24);
  --text:#f5f8ff;
  --muted:#aebde0;
  --cyan:#25e0f5;
  --violet:#8b5cf6;
  --pink:#ff2d78;
  --lime:#b6f542;
  --green:#34d399;
  --grad:linear-gradient(135deg,var(--cyan),var(--violet) 46%,var(--pink));
  --grad-flash:linear-gradient(120deg,var(--lime),var(--cyan) 42%,var(--pink));
  --shadow:0 24px 60px -24px rgba(5,10,26,.8);
  --radius:18px;
  --radius-sm:12px;
  --wrap:1180px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --font-title:'Sora','Inter',system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;color:var(--text);font-family:var(--font);
  background:
    radial-gradient(1200px 640px at 12% -8%,rgba(139,92,246,.30),transparent 62%),
    radial-gradient(1000px 560px at 92% -6%,rgba(255,45,120,.22),transparent 58%),
    radial-gradient(900px 700px at 58% 118%,rgba(37,224,245,.16),transparent 60%),
    var(--bg);
  background-attachment:fixed;
  line-height:1.65;font-size:17px;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:var(--font-title);line-height:1.14;letter-spacing:-.02em;margin:0 0 .6em}
h1{font-size:clamp(2.1rem,5.2vw,3.7rem);font-weight:800}
h2{font-size:clamp(1.6rem,3.4vw,2.5rem);font-weight:700}
h3{font-size:1.12rem;font-weight:600;letter-spacing:-.01em}
p{margin:0 0 1rem}
.wrap{width:min(100% - 2.5rem,var(--wrap));margin-inline:auto}
.wrap--narrow{width:min(100% - 2.5rem,780px)}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- barre de progression ---------- */
.scroll-progress{
  position:fixed;top:0;left:0;height:2px;width:0;z-index:60;
  background:var(--grad);box-shadow:0 0 12px rgba(34,211,238,.6);
}

/* ---------- navigation ---------- */
.nav{position:fixed;inset:0 0 auto;z-index:50;transition:background .35s var(--ease),backdrop-filter .35s,border-color .35s;border-bottom:1px solid transparent}
.nav.is-scrolled{background:rgba(7,11,20,.78);backdrop-filter:blur(14px) saturate(140%);border-bottom-color:var(--line)}
.nav__inner{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;padding:.85rem 0}
.brand{display:inline-flex;align-items:center;gap:.6rem;font-family:var(--font-title);font-weight:700;font-size:1.14rem;letter-spacing:-.02em}
.brand__mark{
  width:26px;height:26px;border-radius:9px;background:var(--grad);position:relative;flex:0 0 auto;
  box-shadow:0 0 0 1px rgba(255,255,255,.12),0 8px 22px -8px rgba(124,58,237,.9);
}
.brand__mark::after{content:"";position:absolute;inset:7px;border-radius:4px;background:#070b14}
.brand__mark::before{content:"";position:absolute;inset:0;border-radius:inherit;background:var(--grad);opacity:.55;filter:blur(9px);animation:pulse 4s ease-in-out infinite}
@keyframes pulse{50%{opacity:.2;transform:scale(1.15)}}
.nav__links{display:flex;align-items:center;gap:1.6rem;font-size:.94rem}
.nav__links a{color:var(--muted);transition:color .25s}
.nav__links a:hover{color:var(--text)}
.burger{display:none;background:none;border:0;padding:.4rem;cursor:pointer}
.burger span{display:block;width:22px;height:2px;background:var(--text);margin:5px 0;border-radius:2px;transition:transform .3s var(--ease),opacity .2s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- boutons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.55rem;
  padding:.9rem 1.5rem;border-radius:999px;font-weight:600;font-size:.95rem;
  border:1px solid transparent;cursor:pointer;transition:transform .25s var(--ease),box-shadow .3s,background .3s,border-color .3s;
  position:relative;font-family:var(--font);
}
.btn--sm{padding:.6rem 1.1rem;font-size:.9rem}
.btn--full{width:100%}
.btn--primary{background:var(--grad);color:#0a0c14;box-shadow:0 14px 34px -12px rgba(255,45,120,.7)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 22px 46px -12px rgba(37,224,245,.75)}
.btn--ghost{border-color:var(--line-strong);color:var(--text);background:rgba(255,255,255,.02)}
.btn--ghost:hover{background:rgba(255,255,255,.06);transform:translateY(-2px)}
.btn__arrow{transition:transform .3s var(--ease)}
.btn:hover .btn__arrow{transform:translateX(4px)}

/* ---------- hero ---------- */
.hero{position:relative;padding:clamp(7rem,15vw,10rem) 0 0;overflow:hidden}
.aurora{position:absolute;inset:-20% -10% auto;height:120%;pointer-events:none;filter:blur(80px);opacity:.8}
.aurora__blob{position:absolute;border-radius:50%;mix-blend-mode:screen}
.aurora__blob--1{width:46vw;height:46vw;background:radial-gradient(circle,#25e0f5,transparent 65%);top:-8%;left:-6%;animation:drift 22s ease-in-out infinite}
.aurora__blob--2{width:42vw;height:42vw;background:radial-gradient(circle,#8b5cf6,transparent 65%);top:6%;right:-4%;animation:drift 26s ease-in-out infinite reverse}
.aurora__blob--3{width:38vw;height:38vw;background:radial-gradient(circle,#ff2d78,transparent 68%);bottom:-14%;left:32%;animation:drift 30s ease-in-out infinite}
@keyframes drift{33%{transform:translate3d(6%,4%,0) scale(1.08)}66%{transform:translate3d(-5%,-3%,0) scale(.94)}}
.grid-overlay{
  position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 20%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 20%,transparent 75%);
}
.hero__inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(2rem,5vw,4rem);align-items:center;padding-bottom:clamp(3rem,7vw,5rem)}
.badge{
  display:inline-flex;align-items:center;gap:.55rem;font-size:.83rem;letter-spacing:.02em;
  color:#ffe4ef;background:rgba(255,45,120,.18);border:1px solid rgba(255,45,120,.5);
  padding:.42rem .9rem;border-radius:999px;margin:0 0 1.4rem;text-transform:uppercase;font-weight:600;
}
.badge__dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(34,211,238,.18);animation:pulse 2.6s ease-in-out infinite}
.rotator{display:block;position:relative;height:1.2em;overflow:hidden;margin-top:.12em}
.rotator__item{
  position:absolute;inset:0;opacity:0;transform:translateY(60%);
  transition:opacity .5s var(--ease),transform .6s var(--ease);
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.rotator__item.is-active{opacity:1;transform:translateY(0)}
.lead{font-size:1.08rem;color:var(--muted);max-width:56ch}
.hero__cta{display:flex;flex-wrap:wrap;gap:.9rem;margin:2rem 0 2.4rem}
.hero__proof{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:2.2rem}
.hero__proof strong{display:block;font-family:var(--font-title);font-size:1.7rem;font-weight:700;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero__proof span{font-size:.86rem;color:var(--muted)}

/* ---------- panneau animé ---------- */
.hero__visual{position:relative}
.panel{
  position:relative;background:linear-gradient(160deg,rgba(34,48,90,.95),rgba(20,29,58,.95));
  border:1px solid var(--line);border-radius:22px;padding:1.1rem 1.2rem 1.4rem;box-shadow:var(--shadow);
}
.panel--float{animation:float 7s ease-in-out infinite}
@keyframes float{50%{transform:translateY(-14px)}}
.panel__head{display:flex;align-items:center;gap:.4rem;padding-bottom:.8rem;border-bottom:1px solid var(--line);margin-bottom:1rem}
.dot{width:9px;height:9px;border-radius:50%}
.dot--red{background:#f87171}.dot--amber{background:#fbbf24}.dot--green{background:#34d399}
.panel__title{margin-left:auto;font-size:.76rem;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
.panel__row{display:flex;align-items:center;gap:.6rem;margin-bottom:.7rem;font-size:.82rem}
.pill{background:rgba(255,255,255,.05);border:1px solid var(--line);padding:.32rem .68rem;border-radius:999px;white-space:nowrap}
.pill--accent{background:rgba(34,211,238,.12);border-color:rgba(34,211,238,.35);color:#c8f6ff}
.flow{flex:1;height:2px;background:linear-gradient(90deg,transparent,var(--cyan),transparent);background-size:200% 100%;animation:flow 2.4s linear infinite}
@keyframes flow{to{background-position:-200% 0}}
.chart{margin:1rem 0 .6rem}
.chart svg{width:100%;height:96px}
.chart__line{stroke-dasharray:420;stroke-dashoffset:420;animation:draw 3.4s var(--ease) forwards .4s;filter:drop-shadow(0 4px 12px rgba(34,211,238,.5))}
@keyframes draw{to{stroke-dashoffset:0}}
.chart__legend{display:flex;justify-content:space-between;align-items:baseline;font-size:.8rem;color:var(--muted)}
.chart__legend strong{color:var(--text);font-family:var(--font-title)}
.panel__bars{display:flex;align-items:flex-end;gap:6px;height:64px;margin-top:.8rem}
.panel__bars span{flex:1;height:0;border-radius:5px 5px 2px 2px;background:linear-gradient(180deg,var(--cyan),var(--pink));animation:grow 1.1s var(--ease) forwards}
.panel__bars span:nth-child(1){animation-delay:.1s}.panel__bars span:nth-child(2){animation-delay:.2s}
.panel__bars span:nth-child(3){animation-delay:.3s}.panel__bars span:nth-child(4){animation-delay:.4s}
.panel__bars span:nth-child(5){animation-delay:.5s}.panel__bars span:nth-child(6){animation-delay:.6s}
.panel__bars span:nth-child(7){animation-delay:.7s}.panel__bars span:nth-child(8){animation-delay:.8s}
@keyframes grow{to{height:var(--h)}}
.orb{position:absolute;border-radius:50%;filter:blur(3px);opacity:.8}
.orb--1{width:70px;height:70px;background:var(--grad);bottom:-24px;left:-26px;animation:float 6s ease-in-out infinite reverse}
.orb--2{width:38px;height:38px;background:radial-gradient(circle,#34d399,transparent 70%);top:-18px;right:-14px;animation:float 5s ease-in-out infinite}

/* ---------- bandeau défilant ---------- */
.marquee{position:relative;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:1.1rem 0;background:rgba(255,255,255,.015);overflow:hidden}
.marquee__track{display:flex;gap:2rem;white-space:nowrap;width:max-content;animation:scrollx 34s linear infinite;color:var(--muted);font-size:.86rem;letter-spacing:.06em;text-transform:uppercase}
@keyframes scrollx{to{transform:translateX(-50%)}}
.marquee:hover .marquee__track{animation-play-state:paused}

/* ---------- sections ---------- */
.section{padding:clamp(4rem,9vw,7rem) 0;position:relative}
.section--alt{background:linear-gradient(180deg,rgba(139,92,246,.14),rgba(15,23,48,0))}
.section__head{max-width:64ch;margin-bottom:clamp(2rem,4vw,3.2rem)}
.section__lead{color:var(--muted);font-size:1.03rem}
.eyebrow{font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:#ff7ab8;font-weight:700;margin-bottom:.7rem}

/* ---------- cartes ---------- */
.cards{display:grid;gap:1.2rem}
.cards--2{grid-template-columns:repeat(2,1fr)}
.cards--3{grid-template-columns:repeat(3,1fr)}
.card{
  position:relative;background:linear-gradient(165deg,rgba(34,48,90,.85),rgba(20,29,58,.9));
  border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem;
  transition:transform .35s var(--ease),border-color .35s,box-shadow .35s;overflow:hidden;
}
.card::before{
  content:"";position:absolute;inset:0;opacity:0;transition:opacity .35s;
  background:radial-gradient(340px circle at var(--mx,50%) var(--my,0%),rgba(255,45,120,.18),transparent 62%);
}
.card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:0 30px 60px -30px rgba(255,45,120,.55)}
.card:hover::before{opacity:1}
.card h3{position:relative}
.card p{color:var(--muted);font-size:.96rem;margin-bottom:0}
.card--wide{padding:1.9rem}
.card__icon{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;margin-bottom:1.1rem;
  background:rgba(34,211,238,.1);border:1px solid rgba(34,211,238,.28);color:var(--cyan);
}
.card__icon svg{width:22px;height:22px}
.ticks{list-style:none;margin:1.1rem 0 0;padding:0;display:grid;gap:.55rem}
.ticks li{position:relative;padding-left:1.6rem;font-size:.92rem;color:var(--muted)}
.ticks li::before{content:"";position:absolute;left:0;top:.55em;width:8px;height:8px;border-radius:50%;background:var(--grad)}
.card--wide .ticks li{color:#b9c8e4}

/* ---------- offres ---------- */
.card--offer{display:flex;flex-direction:column}
.card--offer .price{font-family:var(--font-title);font-size:1.9rem;color:var(--text);margin:.2rem 0 1rem;font-weight:700}
.card--offer .ticks{flex:1}
.card--offer .btn{margin-top:1.4rem}
.card--featured{border-color:rgba(124,58,237,.5);background:linear-gradient(165deg,rgba(35,25,70,.85),rgba(9,14,26,.85));box-shadow:0 30px 70px -40px rgba(124,58,237,.9)}
.tag{position:absolute;top:1.1rem;right:1.1rem;font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;background:var(--grad);color:#04070f;padding:.28rem .6rem;border-radius:999px;font-weight:700}

/* ---------- étapes ---------- */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem;counter-reset:s}
.step{position:relative;padding:1.5rem 1.3rem;border:1px solid var(--line);border-radius:var(--radius);background:rgba(255,255,255,.02)}
.step::after{content:"";position:absolute;top:2.5rem;right:-1.2rem;width:1.2rem;height:1px;background:var(--line-strong)}
.step:last-child::after{display:none}
.step__num{display:block;font-family:var(--font-title);font-size:1.9rem;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:.5rem}
.step p{color:var(--muted);font-size:.92rem;margin:0}

/* ---------- usages / chiffres ---------- */
.usages{display:flex;flex-wrap:wrap;gap:.7rem;margin-bottom:clamp(2.5rem,5vw,4rem)}
.chip{border:1px solid var(--line-strong);background:rgba(255,255,255,.03);padding:.5rem 1rem;border-radius:999px;font-size:.9rem;color:#c6d4ee;transition:transform .25s var(--ease),background .25s,border-color .25s}
.chip:hover{transform:translateY(-3px);background:rgba(34,211,238,.1);border-color:rgba(34,211,238,.4)}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:1.4rem;border-top:1px solid var(--line);padding-top:2.4rem}
.metric strong{display:block;font-family:var(--font-title);font-size:clamp(1.8rem,3.4vw,2.5rem);font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.metric span{font-size:.88rem;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:.7rem}
.faq__item{border:1px solid var(--line);border-radius:var(--radius-sm);background:rgba(255,255,255,.025);padding:.35rem 1.1rem;transition:border-color .3s,background .3s}
.faq__item[open]{border-color:rgba(34,211,238,.35);background:rgba(34,211,238,.05)}
.faq__item summary{cursor:pointer;font-weight:600;padding:.85rem 0;list-style:none;position:relative;padding-right:2rem}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary::after{content:"+";position:absolute;right:0;top:.75rem;font-size:1.3rem;color:var(--cyan);transition:transform .3s var(--ease)}
.faq__item[open] summary::after{transform:rotate(45deg)}
.faq__item p{color:var(--muted);font-size:.95rem;margin:.2rem 0 1rem}

/* ---------- contact ---------- */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:start}
.contact__list{list-style:none;margin:1.6rem 0 0;padding:0;display:grid;gap:.8rem;color:var(--muted)}
.contact__list span{color:var(--cyan);margin-right:.6rem}
.form{background:linear-gradient(165deg,rgba(17,28,51,.7),rgba(9,14,26,.8));border:1px solid var(--line);border-radius:var(--radius);padding:1.7rem}
.form__row{margin-bottom:1.1rem}
.form__row label{display:block;font-size:.85rem;margin-bottom:.4rem;color:#c6d4ee}
.form__row input,.form__row textarea{
  width:100%;padding:.85rem 1rem;border-radius:var(--radius-sm);background:rgba(4,8,18,.7);
  border:1px solid var(--line-strong);color:var(--text);font-family:var(--font);font-size:.95rem;transition:border-color .25s,box-shadow .25s;
}
.form__row textarea{resize:vertical;min-height:120px}
.form__row input:focus,.form__row textarea:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 4px rgba(34,211,238,.14)}
.form__row.has-error input,.form__row.has-error textarea{border-color:#fb7185;box-shadow:0 0 0 4px rgba(251,113,133,.12)}
.form__note{font-size:.9rem;margin:.9rem 0 0;min-height:1.2em}
.form__note.is-ok{color:var(--green)}
.form__note.is-error{color:#fb7185}
.form__legal{font-size:.78rem;color:var(--muted);margin:.7rem 0 0}
/* piège anti-robot : champ invisible pour un humain, présent pour un automate */
.form__honey{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* ---------- pied de page ---------- */
.footer{border-top:1px solid var(--line);padding:3rem 0 2rem;background:linear-gradient(180deg,rgba(7,11,20,0),rgba(11,17,32,.8))}
.footer__inner{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:2rem;align-items:start}
.footer__brand p{color:var(--muted);font-size:.9rem;margin:.9rem 0 0;max-width:32ch}
.footer__nav{display:grid;gap:.5rem;font-size:.9rem}
.footer__nav a{color:var(--muted);transition:color .25s}
.footer__nav a:hover{color:var(--text)}
.footer__legal{font-size:.85rem;color:var(--muted)}
.footer__todo{font-size:.78rem;color:#6d7d99;font-style:italic}

/* ---------- apparition au défilement ---------- */
[data-reveal]{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .8s var(--ease)}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero__inner{grid-template-columns:1fr}
  .hero__visual{order:-1;max-width:520px}
  .cards--3,.steps,.metrics{grid-template-columns:repeat(2,1fr)}
  .step::after{display:none}
  .footer__inner{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  body{font-size:16px}
  .nav__links{
    position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:.2rem;
    background:rgba(7,11,20,.97);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);
    padding:1rem 1.25rem 1.4rem;transform:translateY(-12px);opacity:0;pointer-events:none;transition:opacity .3s,transform .3s var(--ease);
  }
  .nav__links.is-open{opacity:1;transform:none;pointer-events:auto}
  .nav__links a{padding:.6rem 0;font-size:1rem}
  .burger{display:block}
  .cards--2,.cards--3,.steps,.metrics,.contact,.footer__inner{grid-template-columns:1fr}
  .hero__proof{gap:1.4rem}
  .hero{padding-top:6rem}
  .panel__row{flex-wrap:wrap}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
  [data-reveal]{opacity:1;transform:none}
}