/* gravity — identité v06 « Escape Velocity », retenue le 03/11 parmi 20 (apercu/identites/v06.html).
   Bloc source ui-layouts : feature-section/feature-velocity (hachures 45°, masque radial, titres uppercase serrés,
   cartes neutral-950 + halo au survol) ; composant animated-beam (faisceaux entre les corps, static/systeme.js).
   Gris #9ca3af (gray-400) au lieu de gray-500 pour tenir 4,5:1. Police : Chakra Petch. */
:root{--bg:#000;--card:#0a0a0a;--line:#262626;--stripe:#252525;--ink:#fff;--mute:#9ca3af;--soft:#d4d4d4;
  --violet:#8b5cf6;--emerald:#10b981;--blue:#3b82f6;--red:#f87171;--ease:cubic-bezier(.16,1,.3,1)}
*{box-sizing:border-box;margin:0;padding:0}
html,body{background:var(--bg);color:var(--ink)}
body{font-family:'Chakra Petch',system-ui,sans-serif;overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
::selection{background:#fff;color:#000}
:focus-visible{outline:2px solid #fff;outline-offset:3px}
html{scrollbar-color:#3f3f46 #000}
.skip{position:absolute;left:-999px;top:8px;background:#fff;color:#000;padding:8px 12px;border-radius:8px;z-index:20}
.skip:focus{left:8px}
.stripes{position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(45deg,var(--stripe) 0px,var(--stripe) 1px,transparent 1px,transparent 8px);
  -webkit-mask:radial-gradient(ellipse 80% 50% at 50% 0%,#000 70%,transparent 110%);
          mask:radial-gradient(ellipse 80% 50% at 50% 0%,#000 70%,transparent 110%)}
.mono{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--mute);line-height:1.65}
.label{font-size:11px;letter-spacing:.3em;text-transform:uppercase;color:var(--mute)}
code,.addr{font-family:'Chakra Petch',monospace;font-size:13px;letter-spacing:.02em;word-break:break-all}

/* nav */
nav.top{position:absolute;top:0;left:0;right:0;z-index:5;display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding:20px clamp(16px,4vw,48px)}
nav.top.flow{position:relative}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:20px;letter-spacing:-.03em;text-transform:uppercase}
.links{display:flex;align-items:center;gap:clamp(12px,2.4vw,32px)}
.links a.l{font-size:13px;letter-spacing:.18em;text-transform:uppercase;color:var(--mute);transition:color .3s}
.links a.l:hover,.links a.l[aria-current]{color:#fff}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;height:48px;padding:0 22px;border-radius:16px;
  background:#fff;color:#000;border:0;cursor:pointer;font-family:inherit;
  font-weight:700;font-size:15px;letter-spacing:.12em;text-transform:uppercase;transition:transform .3s var(--ease),background .3s}
.btn:hover{background:#e5e5e5}
.btn:active{transform:scale(.97)}
.btn:disabled{opacity:.6;cursor:wait}
.btn.sm{height:40px;padding:0 16px;font-size:13px;border-radius:12px}
.ghost{display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 18px;border-radius:16px;border:1px solid var(--line);
  background:transparent;color:#fff;font-family:inherit;cursor:pointer;
  font-weight:600;font-size:14px;letter-spacing:.12em;text-transform:uppercase;transition:border-color .3s}
.ghost:hover{border-color:#525252}

.xbtn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);color:#fff;transition:border-color .3s}
.xbtn:hover{border-color:#525252}
.xbtn[aria-disabled]{color:var(--mute);cursor:default}

/* hero : le système */
.hero{position:relative;height:100vh;height:100svh;min-height:600px;overflow:hidden;background:#000}
canvas[data-system]{position:absolute;inset:0;width:100%;height:100%;display:block;cursor:crosshair}
.hero .copy{position:absolute;left:clamp(16px,4vw,48px);right:clamp(16px,4vw,48px);bottom:clamp(28px,6vh,64px);z-index:3;
  display:flex;flex-direction:column;gap:28px;pointer-events:none}
.hero .copy>*{pointer-events:auto}
.head{display:flex;flex-direction:column;gap:24px;border-bottom:1px solid var(--line);padding-bottom:28px;max-width:720px}
h1{font-weight:700;font-size:clamp(46px,7.2vw,104px);line-height:.9;letter-spacing:-.055em;text-transform:uppercase;
  text-shadow:0 0 24px #000,0 0 2px #000}
.head p{max-width:22rem}
.actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.feed{position:absolute;right:clamp(16px,4vw,48px);bottom:clamp(28px,6vh,64px);z-index:3;width:320px;
  background:rgba(10,10,10,.86);border:1px solid var(--line);border-radius:16px;padding:20px 22px;overflow:hidden}
.feed .label{display:flex;align-items:center;gap:8px}
.dot{width:6px;height:6px;border-radius:50%;background:var(--emerald);display:inline-block}
.feed ul{list-style:none;margin-top:14px;display:flex;flex-direction:column;gap:8px;min-height:104px}
.feed li{font-size:13px;line-height:1.35;color:#e5e5e5;letter-spacing:.02em}
.feed li b{font-weight:600;color:#fff}
.feed li span{color:var(--mute)}
.hud{position:absolute;top:84px;right:clamp(16px,4vw,48px);z-index:3;display:flex;flex-direction:column;align-items:flex-end;gap:6px;text-align:right}
.hud [data-live="1"]{color:var(--emerald)}

/* sections */
section.block{position:relative;padding:120px clamp(16px,4vw,48px);overflow:hidden}
.wrap{max-width:1280px;margin:0 auto;position:relative;z-index:2}
.sh{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:40px;border-bottom:1px solid var(--line);padding-bottom:48px;margin-bottom:64px}
h2{font-weight:700;font-size:clamp(40px,6vw,72px);line-height:.92;letter-spacing:-.05em;text-transform:uppercase}
.sh p{max-width:22rem}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:48px;overflow:hidden;transition:border-color .5s}
.card:hover{border-color:var(--card)}
.card .glow{position:absolute;inset:0;opacity:0;transition:opacity .7s;pointer-events:none}
.card:hover .glow,.card:focus-within .glow{opacity:1}
.g-violet{background:linear-gradient(to bottom right,rgba(139,92,246,.2),transparent)}
.g-emerald{background:linear-gradient(to bottom right,rgba(16,185,129,.2),transparent)}
.g-blue{background:linear-gradient(to bottom right,rgba(59,130,246,.2),transparent)}
.card .in{position:relative;z-index:1;display:flex;flex-direction:column;gap:56px}
.chip{width:56px;height:56px;border-radius:16px;background:rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center}
.chip svg{width:24px;height:24px}
.card h3{font-weight:700;font-size:30px;letter-spacing:-.05em;text-transform:uppercase;margin-top:14px;line-height:1}
.card p{margin-top:14px;font-size:16px;line-height:1.6;color:var(--soft)}
.split{display:grid;grid-template-columns:7fr 3fr;gap:32px}
.split .card .big{font-weight:700;font-size:clamp(72px,11vw,160px);letter-spacing:-.06em;line-height:.85}
.bar{height:14px;border-radius:7px;background:#171717;overflow:hidden;display:flex;margin-top:8px}
.bar i{display:block;height:100%}
.facts{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.facts div{border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:32px 28px;display:flex;flex-direction:column;gap:14px}
.facts b{font-weight:700;font-size:clamp(30px,3.6vw,48px);letter-spacing:-.05em;line-height:1;text-transform:uppercase}
.facts span{font-size:15px;line-height:1.5;color:var(--soft)}
footer.ft{border-top:1px solid var(--line);padding:32px clamp(16px,4vw,48px);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* pages intérieures */
.page{position:relative;min-height:100vh}
.page-head{position:relative;padding:48px clamp(16px,4vw,48px) 0;overflow:hidden}
.page-head .wrap{border-bottom:1px solid var(--line);padding-bottom:40px;display:flex;flex-wrap:wrap;gap:32px;justify-content:space-between;align-items:flex-end}
.page-head h1{font-size:clamp(44px,7vw,96px)}
.page-body{padding:48px clamp(16px,4vw,48px) 120px}
.prose{max-width:46rem;display:flex;flex-direction:column;gap:18px;font-size:17px;line-height:1.65;color:var(--soft)}
.prose h3{color:#fff;font-weight:700;font-size:26px;letter-spacing:-.04em;text-transform:uppercase;margin-top:28px}
.prose code{background:#111;border:1px solid var(--line);border-radius:6px;padding:1px 6px;color:#fff}
.prose pre{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px;overflow-x:auto;font-size:13px;color:#e5e5e5}
.prose a{text-decoration:underline;text-underline-offset:3px}
.table{width:100%;border-collapse:collapse;font-size:15px}
.table th{font-weight:500;text-align:left;font-size:11px;letter-spacing:.3em;text-transform:uppercase;color:var(--mute);padding:12px 14px;border-bottom:1px solid var(--line)}
.table td{padding:14px;border-bottom:1px solid #171717;vertical-align:top;color:#e5e5e5}
.table tr:hover td{background:#0a0a0a}
.table a{text-decoration:underline;text-underline-offset:3px}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:11px;letter-spacing:.2em;text-transform:uppercase;padding:4px 10px;border-radius:999px;border:1px solid var(--line);color:var(--soft)}
.tag.capture{border-color:rgba(16,185,129,.5);color:#6ee7b7}
.tag.collision{border-color:rgba(139,92,246,.5);color:#c4b5fd}
.tag.ejection{border-color:rgba(248,113,113,.5);color:#fca5a5}
.tag.star{border-color:rgba(255,255,255,.5);color:#fff}
.tag.demo{color:var(--mute)}
.filters{display:flex;gap:8px;flex-wrap:wrap}
.filters a{font-size:12px;letter-spacing:.18em;text-transform:uppercase;padding:8px 14px;border:1px solid var(--line);border-radius:12px;color:var(--mute)}
.filters a[aria-current]{color:#fff;border-color:#fff}
.body-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:32px;align-items:start}
.scope{position:relative;aspect-ratio:1/1;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#000}
.kv{display:grid;grid-template-columns:auto 1fr;gap:12px 24px;font-size:15px}
.kv dt{font-size:11px;letter-spacing:.3em;text-transform:uppercase;color:var(--mute);padding-top:3px}
.kv dd{color:#e5e5e5}
.empty{color:var(--mute);font-size:15px;padding:24px 0}

/* lancement */
.launch{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:start}
.form{display:flex;flex-direction:column;gap:22px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:11px;letter-spacing:.3em;text-transform:uppercase;color:var(--mute)}
.field label em{font-style:normal;letter-spacing:.1em;color:#71717a;margin-left:6px}
.field input,.field textarea{background:var(--card);border:1px solid var(--line);border-radius:12px;color:#fff;font-family:inherit;
  font-size:16px;padding:14px 16px;outline:none;transition:border-color .3s}
.field input:focus,.field textarea:focus{border-color:#71717a}
.field textarea{min-height:96px;resize:vertical}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.imgrow{display:flex;gap:18px;align-items:center}
.drop{width:112px;height:112px;flex:none;border:1px dashed #3f3f46;border-radius:16px;display:flex;align-items:center;justify-content:center;
  text-align:center;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--mute);cursor:pointer;overflow:hidden;position:relative}
.drop img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hint{font-size:14px;color:var(--mute);line-height:1.5}
.lock{font-size:14px;color:var(--soft);border:1px solid var(--line);border-radius:12px;padding:12px 16px;background:var(--card)}
.err{color:#fca5a5;font-size:15px;border:1px solid rgba(248,113,113,.4);border-radius:12px;padding:12px 16px}
.ctas{display:flex;gap:12px;flex-wrap:wrap}
.steps-l{display:flex;flex-direction:column;gap:6px;padding-left:20px;font-size:14px;color:var(--mute)}
.steps-l li.fait{color:#6ee7b7}


/* accueil : chiffres, mode d'emploi, classement, questions (03/11) */
.hero-hint{max-width:24rem;color:var(--soft)}
.stats{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats div{padding:28px clamp(16px,2vw,28px);border-right:1px solid var(--line);display:flex;flex-direction:column;gap:8px}
.stats div:last-child{border-right:0}
.stats b{font-weight:700;font-size:clamp(28px,3vw,40px);letter-spacing:-.04em;line-height:1}
.stats span{font-size:13px;color:var(--mute);line-height:1.4}
.how{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.how li{border:1px solid var(--line);border-radius:16px;padding:28px;background:var(--card);display:flex;flex-direction:column;gap:12px}
.how b{font-size:13px;width:32px;height:32px;border-radius:50%;border:1px solid #525252;display:flex;align-items:center;justify-content:center}
.how h3{font-weight:700;font-size:22px;letter-spacing:-.03em;text-transform:uppercase}
.how p{font-size:15px;line-height:1.55;color:var(--soft)}
.scroll-x{overflow-x:auto}
.prog{display:inline-block;vertical-align:middle;width:64px;height:6px;border-radius:3px;background:#262626;overflow:hidden;margin-right:6px}
.prog i{display:block;height:100%;background:var(--emerald)}
.prog.big{width:100%;height:10px;border-radius:5px;margin:8px 0 0}
.fame{list-style:none;display:flex;flex-wrap:wrap;gap:10px;counter-reset:f}
.fame li{counter-increment:f;display:flex;gap:10px;align-items:center;border:1px solid var(--line);border-radius:12px;padding:10px 14px;font-size:15px}
.fame li::before{content:counter(f);color:var(--mute);font-size:12px}
.fame li span{color:var(--mute);font-size:13px}
.fame a{text-decoration:underline;text-underline-offset:3px}
.split.even{grid-template-columns:1fr 1fr}
.ticks{list-style:none;display:flex;flex-direction:column;gap:14px}
.ticks li{position:relative;padding-left:26px;font-size:16px;line-height:1.55;color:var(--soft)}
.ticks li::before{content:'';position:absolute;left:0;top:8px;width:10px;height:10px;border-radius:50%;border:2px solid var(--emerald)}
.ticks b{color:#fff;font-weight:600}
.faq{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);padding:20px 4px}
.faq summary{cursor:pointer;font-weight:600;font-size:18px;letter-spacing:-.01em;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::after{content:'+';color:var(--mute)}
.faq details[open] summary::after{content:'−'}
.faq p{margin-top:12px;font-size:16px;line-height:1.6;color:var(--soft);max-width:48rem}
.copy-btn{background:none;border:1px solid var(--line);border-radius:8px;color:var(--soft);font:inherit;font-size:11px;letter-spacing:.15em;text-transform:uppercase;padding:3px 8px;cursor:pointer;margin-left:6px}
.copy-btn:hover{border-color:#525252}
.fund{font-weight:700;font-size:40px;letter-spacing:-.04em;line-height:1}

@media (max-width:1000px){.stats{grid-template-columns:repeat(3,1fr)}.how{grid-template-columns:1fr 1fr}.split.even{grid-template-columns:1fr}.grid{grid-template-columns:1fr 1fr}.facts{grid-template-columns:1fr 1fr}.split,.body-grid,.launch{grid-template-columns:1fr}}
@media (max-width:860px){.feed{display:none}.hud{top:72px}}
@media (max-width:640px){
  nav.top{padding:14px 16px;gap:8px}
  .logo{font-size:17px;gap:7px}.logo svg{width:22px;height:22px}
  .links{gap:10px}.links a.l{font-size:11px;letter-spacing:.02em}
  .btn.sm{height:36px;padding:0 12px;font-size:12px;letter-spacing:.08em}
  .hero .copy{top:76px;bottom:auto;gap:18px}
  .hud{top:auto;bottom:16px;right:16px}
  .head{gap:14px;padding-bottom:18px}
  h1{font-size:46px}
  .mono{font-size:12px}
  .grid{grid-template-columns:1fr}.card{padding:32px}.card .in{gap:36px}
  .facts{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}.stats div{border-bottom:1px solid var(--line)}.how{grid-template-columns:1fr}
  .xbtn{width:32px;height:32px;border-radius:10px}.xbtn svg{width:13px;height:13px}
  .links a.l:first-child{display:none}
  section.block{padding:80px 16px}
  .row2{grid-template-columns:1fr}
  .table{font-size:14px}.table th:nth-child(4),.table td:nth-child(4){display:none}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}