/* Demare AI — vue simple (site classique « prestige »).
   Charte : nuit #070B16, violet/bleu/ciel/cyan, Quantico (texte), Orbitron (nom), Nothing You Could Do (signature). */
:root{
  --night:#070B16; --night-2:#0A1020; --panel:#0D1530; --panel-2:#111B3B; --line:rgba(138,155,184,.18);
  --text:#EAF2FF; --muted:#A3B3CF; --violet:#7C3AED; --blue:#2563EB; --sky:#0EA5E9; --cyan:#38E1FF;
  --grad:linear-gradient(120deg,#7C3AED,#2563EB 45%,#0EA5E9 80%,#38E1FF);
  --font-title:"Quantico",system-ui,sans-serif; --font-body:"Quantico",system-ui,sans-serif;
  --font-brand:"Orbitron","Quantico",system-ui,sans-serif; --font-hand:"Nothing You Could Do","Quantico",cursive;
  --ease:cubic-bezier(.2,.7,.2,1); --gut:clamp(20px,4.2vw,56px); --r:18px;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--night);color:var(--text);font-family:var(--font-body);font-size:17px;line-height:1.6;overflow-x:hidden}
img,video{max-width:100%;display:block}
a{color:inherit}
button{font:inherit;color:inherit;cursor:pointer}
h1,h2,h3{font-family:var(--font-title);font-weight:700;margin:0;line-height:1.08;letter-spacing:-.005em;text-wrap:balance}
p{margin:0}
em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:12px;top:-60px;z-index:200;background:#fff;color:#000;padding:10px 16px;border-radius:10px;text-decoration:none}
.skip:focus{top:12px}
.wrap{width:min(1200px,100%);margin-inline:auto;padding-inline:var(--gut)}
.ic{width:1.15em;height:1.15em;flex:none;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.ic.big{width:34px;height:34px;color:var(--cyan)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

/* ---------- boutons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:0 24px;border-radius:999px;border:0;text-decoration:none;font-weight:700;letter-spacing:.01em;color:#fff;
  background:var(--grad);background-size:140% 100%;background-position:0 0;box-shadow:0 10px 30px rgba(37,99,235,.35);transition:transform .18s var(--ease),box-shadow .18s var(--ease),background-position .35s var(--ease)}
.btn:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(37,99,235,.5);background-position:100% 0}
.btn:active{transform:translateY(0) scale(.98)}
.btn.ghost{background:transparent;border:1px solid rgba(163,179,207,.5);box-shadow:none;color:var(--text)}
.btn.ghost:hover{border-color:var(--cyan);color:var(--cyan);box-shadow:0 0 0 3px rgba(56,225,255,.12)}
.btn.sm{min-height:42px;padding:0 18px;font-size:15px}
.btn.lg{min-height:56px;padding:0 30px;font-size:18px}
.link{display:inline-flex;align-items:center;gap:8px;font-weight:700;color:var(--cyan);text-decoration:none;background:linear-gradient(currentColor,currentColor) 0 100%/0 2px no-repeat;padding-bottom:3px;transition:background-size .3s var(--ease)}
.link:hover{background-size:100% 2px}
.link .ic{transition:transform .25s var(--ease)}.link:hover .ic{transform:translateX(4px)}

/* ---------- en-tête ---------- */
.top{position:fixed;inset:0 0 auto 0;z-index:60;transition:background .3s,border-color .3s,backdrop-filter .3s;border-bottom:1px solid transparent}
.top.solid{background:rgba(7,11,22,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-color:var(--line)}
.top .wrap{max-width:1360px}
.top-in{display:flex;align-items:center;gap:20px;height:76px}
.top-in>*{white-space:nowrap}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-family:var(--font-brand);font-weight:700;font-size:22px;letter-spacing:.01em}
.brand b{color:var(--cyan);font-weight:700}
.nav{display:flex;gap:6px;margin-inline:auto}
.nav a{position:relative;padding:10px 11px;text-decoration:none;color:var(--muted);font-weight:700;font-size:15px;transition:color .2s}
.nav a::after{content:"";position:absolute;left:11px;right:11px;bottom:4px;height:2px;background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}
.nav a:hover,.nav a.on{color:var(--text)}.nav a:hover::after,.nav a.on::after{transform:scaleX(1)}
.top-cta{display:flex;gap:10px}
.burger{display:none;margin-left:auto;width:48px;height:48px;border-radius:12px;border:1px solid var(--line);background:rgba(13,21,48,.7);position:relative}
.burger i{position:absolute;left:13px;right:13px;height:2px;background:var(--text);border-radius:2px;transition:transform .25s var(--ease),opacity .2s}
.burger i:nth-of-type(1){top:16px}.burger i:nth-of-type(2){top:23px}.burger i:nth-of-type(3){top:30px}
.burger[aria-expanded="true"] i:nth-of-type(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] i:nth-of-type(2){opacity:0}
.burger[aria-expanded="true"] i:nth-of-type(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- accueil ---------- */
.hero{position:relative;min-height:100svh;display:flex;flex-direction:column;justify-content:center;padding-top:88px;overflow:hidden;isolation:isolate}
.hero-bg{position:absolute;inset:0;z-index:-1;background:
  radial-gradient(ellipse 70% 60% at 78% 38%,rgba(37,99,235,.28),transparent 65%),
  radial-gradient(ellipse 50% 50% at 8% 12%,rgba(124,58,237,.22),transparent 65%),
  var(--night)}
.hero-bg::before{content:"";position:absolute;inset:0;opacity:.55;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='97' viewBox='0 0 56 97'%3E%3Cpath d='M28 2l26 15v30L28 62 2 47V17zM28 62v33M2 47L0 48M54 47l2 1' fill='none' stroke='%2338E1FF' stroke-opacity='.10' stroke-width='1'/%3E%3C/svg%3E");
  -webkit-mask-image:radial-gradient(ellipse 75% 75% at 60% 45%,#000 20%,transparent 75%);mask-image:radial-gradient(ellipse 75% 75% at 60% 45%,#000 20%,transparent 75%)}
.orb{position:absolute;border-radius:50%;filter:blur(70px);opacity:.5;animation:drift 18s ease-in-out infinite alternate}
.o1{width:380px;height:380px;left:-80px;top:30%;background:#7C3AED}
.o2{width:320px;height:320px;right:6%;bottom:6%;background:#0EA5E9;animation-delay:-8s}
@keyframes drift{to{transform:translate(50px,-40px) scale(1.12)}}
.hero-in{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.1fr);gap:clamp(28px,5vw,72px);align-items:center;padding-block:clamp(28px,5vh,64px)}
.hand{font-family:var(--font-hand);font-size:clamp(22px,2.4vw,30px);color:var(--cyan);transform:rotate(-2deg);transform-origin:left;margin-bottom:14px;display:block}
.hero h1{font-size:clamp(34px,4.1vw,58px);line-height:1.05}
.lead{margin-top:22px;font-size:clamp(17px,1.5vw,20px);color:var(--muted);max-width:34em}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.facts{display:grid;grid-template-columns:repeat(3,minmax(0,auto));gap:10px 36px;justify-content:start;margin:34px 0 0;padding-top:22px;border-top:1px solid var(--line)}
.facts dt{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);line-height:1.3}
.facts dd{margin:4px 0 0}
.facts b{font-size:clamp(24px,2.4vw,32px);color:#fff;line-height:1.1;white-space:nowrap}
.hero-vis{min-width:0}
.frame{border-radius:20px;padding:1.5px;background:linear-gradient(140deg,rgba(124,58,237,.9),rgba(37,99,235,.5) 40%,rgba(56,225,255,.8));box-shadow:0 40px 100px rgba(0,0,0,.55),0 0 80px rgba(37,99,235,.25);transition:transform .35s var(--ease),box-shadow .35s}
.frame:hover{transform:translateY(-3px);box-shadow:0 46px 110px rgba(0,0,0,.6),0 0 100px rgba(56,225,255,.28)}
.frame-bar{display:flex;align-items:center;gap:7px;height:38px;padding:0 14px;background:#0B1226;border-radius:19px 19px 0 0}
.frame-bar i{width:11px;height:11px;border-radius:50%;background:#26335a}
.frame-bar span{margin-left:12px;font-size:13px;color:var(--muted);background:#121b39;padding:3px 14px;border-radius:999px;letter-spacing:.02em}
.frame-screen{position:relative;border-radius:0 0 19px 19px;overflow:hidden;background:#0b0b0d;aspect-ratio:16/9}
.frame-screen video{width:100%;height:100%;object-fit:cover}
.vid-btn{position:absolute;right:12px;bottom:12px;width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.3);background:rgba(7,11,22,.7);backdrop-filter:blur(6px);display:grid;place-items:center;transition:background .2s,transform .2s}
.vid-btn:hover{background:rgba(37,99,235,.7);transform:scale(1.06)}
.sectors{display:flex;flex-wrap:wrap;gap:10px 12px;list-style:none;margin-top:clamp(8px,2vh,24px);margin-bottom:clamp(20px,4vh,40px);padding-block:0}
.sectors li{padding:8px 16px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:14.5px;background:rgba(13,21,48,.5);transition:color .2s,border-color .2s}
.sectors li:hover{color:var(--text);border-color:rgba(56,225,255,.5)}

/* ---------- sections ---------- */
.sec{padding-block:clamp(72px,10vw,132px)}
.sec.alt{background:linear-gradient(180deg,var(--night-2),var(--night));border-block:1px solid var(--line)}
.sec[hidden]{display:none}
.sec-head{max-width:46em;margin-bottom:clamp(28px,4vw,52px)}
.sec-head p:not(.eyebrow){margin-top:16px;color:var(--muted);font-size:18px}
.eyebrow{font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);margin-bottom:14px;font-weight:700}
.sec h2{font-size:clamp(30px,4.2vw,54px)}
.sec h3{font-size:22px}

.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:clamp(28px,5vw,80px);align-items:center}
.split.rev{grid-template-columns:minmax(0,1.15fr) minmax(0,1fr)}
.split-txt>p:not(.eyebrow){margin-top:18px;color:var(--muted);font-size:18px;max-width:34em}
.split-txt .link,.split-txt .btn{margin-top:26px}
.also{padding-top:18px;border-top:1px solid var(--line);color:var(--text)!important}
.ticks{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:10px}
.ticks li{position:relative;padding-left:30px;color:var(--text)}
.ticks li::before{content:"";position:absolute;left:2px;top:.45em;width:14px;height:8px;border:solid var(--cyan);border-width:0 0 2.5px 2.5px;transform:rotate(-48deg)}

.shot{display:block;border-radius:var(--r);overflow:hidden;border:1px solid rgba(124,58,237,.35);background:#0b0b0d;box-shadow:0 30px 80px rgba(0,0,0,.5),0 0 60px rgba(37,99,235,.14)}
.shot img{width:100%;height:auto;transition:transform .5s var(--ease)}
a.shot:hover img{transform:scale(1.025)}
.shot.big{transition:transform .25s var(--ease),border-color .25s}
a.shot.big:hover{transform:translateY(-3px);border-color:rgba(56,225,255,.6)}

/* onglets */
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.tab{min-height:46px;padding:0 20px;border-radius:999px;border:1px solid var(--line);background:rgba(13,21,48,.6);color:var(--muted);font-weight:700;transition:color .2s,border-color .2s,background .2s,transform .15s}
.tab:hover{color:var(--text);border-color:rgba(56,225,255,.5)}
.tab[aria-selected="true"]{color:#fff;border-color:transparent;background:var(--grad)}
.tab:active{transform:scale(.97)}
.panel{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.5fr);gap:clamp(24px,4vw,56px);align-items:center}
.panel[hidden]{display:none}
.panel-txt p{margin-top:16px;color:var(--muted);font-size:18px}
.panel-txt h3{font-size:clamp(24px,2.6vw,34px)}
html:not(.js) .panel[hidden]{display:grid}
html:not(.js) .panel{margin-bottom:48px}

/* étapes */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;counter-reset:s}
.steps li{position:relative;padding:26px 22px 24px;border-radius:var(--r);background:linear-gradient(170deg,var(--panel-2),var(--panel));border:1px solid var(--line);transition:transform .25s var(--ease),border-color .25s}
.steps li:hover{transform:translateY(-2px);border-color:rgba(56,225,255,.45)}
.steps .n{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;background:var(--grad);font-weight:700;font-size:19px;margin-bottom:18px;box-shadow:0 8px 24px rgba(37,99,235,.4)}
.steps h3{font-size:20px}
.steps p{margin-top:8px;color:var(--muted);font-size:16px}

/* cartes métiers */
.cards{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.card{padding:28px 26px;border-radius:var(--r);background:linear-gradient(170deg,var(--panel-2),var(--panel));border:1px solid var(--line);display:flex;flex-direction:column;gap:10px;transition:transform .25s var(--ease),border-color .25s,box-shadow .25s}
.card:hover{transform:translateY(-2px);border-color:rgba(56,225,255,.45);box-shadow:0 18px 50px rgba(0,0,0,.35)}
.card p{color:var(--muted);font-size:16px}

/* tarifs */
.plans{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;max-width:980px}
.plan{display:flex;flex-direction:column;gap:6px;padding:34px 32px;border-radius:22px;background:linear-gradient(170deg,var(--panel-2),var(--panel));border:1px solid var(--line);transition:transform .25s var(--ease),border-color .25s}
.plan:hover{transform:translateY(-2px)}
.plan.feat{border:1px solid transparent;background:linear-gradient(var(--panel),var(--panel)) padding-box,var(--grad) border-box;box-shadow:0 30px 80px rgba(37,99,235,.2)}
.plan .price{margin-top:12px;font-size:clamp(30px,3.4vw,42px);font-weight:700;line-height:1.1}
.plan .price span{display:block;font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--cyan);margin-bottom:6px;font-weight:700}
.plan .price small{display:block;margin-top:8px;font-size:16px;font-weight:400;color:var(--muted)}
.plan .ticks{margin-bottom:24px}
.plan .btn{margin-top:auto;align-self:flex-start}
.plans-note{margin-top:28px;max-width:46em;color:var(--muted)}
.plans-note b{color:var(--text)}

/* actu */
.news{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 18px}
.news a{display:flex;flex-direction:column;gap:6px;height:100%;padding:20px 22px;border-radius:var(--r);border:1px solid var(--line);background:rgba(13,21,48,.55);text-decoration:none;transition:transform .25s var(--ease),border-color .25s}
.news a:hover{transform:translateY(-2px);border-color:rgba(56,225,255,.45)}
.news b{font-size:17.5px;line-height:1.35}
.news small{color:var(--muted);font-size:13.5px}

/* contact */
.contact{background:radial-gradient(ellipse 60% 70% at 85% 30%,rgba(37,99,235,.22),transparent 65%),var(--night)}
.contact .split{align-items:start}
.coords{list-style:none;margin:26px 0 0;padding:0;display:grid;gap:14px}
.coords li{display:flex;align-items:center;gap:14px;font-size:18px}
.coords .ic{color:var(--cyan);width:22px;height:22px}
.coords a{text-decoration:none;background:linear-gradient(currentColor,currentColor) 0 100%/0 2px no-repeat;padding-bottom:2px;transition:background-size .3s var(--ease)}
.coords a:hover{background-size:100% 2px;color:var(--cyan)}
.social{list-style:none;margin:28px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:10px}
.social a{display:inline-flex;align-items:center;min-height:44px;padding:0 18px;border:1px solid var(--line);border-radius:999px;text-decoration:none;color:var(--muted);transition:color .2s,border-color .2s,transform .2s}
.social a:hover{color:var(--text);border-color:var(--cyan);transform:translateY(-1px)}
.form-col{min-width:0}
.tabs.small{margin-bottom:14px}

/* pied de page */
.foot{border-top:1px solid var(--line);padding-block:44px 28px;background:var(--night-2)}
.foot-in{display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between}
.foot-brand{display:flex;align-items:center;gap:14px}
.fb{display:block;font-family:var(--font-brand);font-weight:700;font-size:22px}.fb b{color:var(--cyan)}
.foot .hand{font-size:20px;margin:0;transform:none}
.foot-nav{display:flex;flex-wrap:wrap;gap:6px 22px}
.foot-nav a{color:var(--muted);text-decoration:none;padding:8px 0;background:linear-gradient(currentColor,currentColor) 0 100%/0 1px no-repeat;transition:background-size .3s var(--ease),color .2s}
.foot-nav a:hover{color:var(--text);background-size:100% 1px}
.foot-nav a[hidden]{display:none}
.legal{margin-top:26px;color:#7585a3;font-size:13.5px}

/* barre d'actions mobile */
.bar{display:none}

@media (max-width:1240px){
  .top-cta .ghost{display:none}
}
@media (max-width:980px){
  .burger{display:block}
  .top-cta{display:none}
  .nav{position:fixed;inset:76px 0 0 0;margin:0;flex-direction:column;gap:0;padding:24px var(--gut);background:rgba(7,11,22,.97);backdrop-filter:blur(16px);transform:translateY(-12px);opacity:0;pointer-events:none;transition:opacity .25s,transform .25s var(--ease)}
  .nav.open{opacity:1;transform:none;pointer-events:auto}
  .nav a{font-size:24px;padding:18px 4px;border-bottom:1px solid var(--line);color:var(--text)}
  .nav a::after{display:none}
  .hero{min-height:auto;padding-top:104px}
  .hero-in{grid-template-columns:1fr}
  .hero-vis{order:2}
  .split,.split.rev{grid-template-columns:1fr}
  .split.rev .shot{order:2}
  .panel{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .plans{grid-template-columns:1fr}
  .news{grid-template-columns:1fr}
}
@media (max-width:620px){
  body{font-size:16.5px;padding-bottom:calc(76px + env(safe-area-inset-bottom,0px))}
  .top-in{height:68px}.nav{inset:68px 0 0 0}
  .facts{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px 12px}
  .facts dt{font-size:11px;letter-spacing:.06em}
  .facts b{font-size:21px}
  .cta-row .btn{width:100%}
  .steps,.cards{grid-template-columns:1fr}
  .tabs{flex-wrap:nowrap;overflow-x:auto;margin-inline:calc(var(--gut) * -1);padding-inline:var(--gut);scrollbar-width:none}
  .tabs::-webkit-scrollbar{display:none}.tab{flex:none}
  .tabs.small{flex-wrap:wrap;overflow:visible;margin-inline:0;padding-inline:0}
  .plan{padding:28px 22px}
  .bar{position:fixed;inset:auto 0 0 0;z-index:70;display:flex;gap:10px;padding:10px var(--gut) calc(10px + env(safe-area-inset-bottom,0px));background:rgba(7,11,22,.9);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-top:1px solid var(--line)}
  .bar .btn{flex:1}
  html[data-df-open] .bar{display:none}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .orb,.frame,.btn,.card,.steps li,.plan,.shot img{animation:none!important;transition:none!important}
}