/*
 * Fraktale pre-launch — visual language borrowed from landing/_shared/theme.css
 * (navy + ambre) so the waitlist page stays on-brand with the SEO pages.
 * Fonts: self-hosted (no Google Fonts CDN → no IP transfer, RGPD-friendly).
 * Space Grotesk = display (technical/engineering voice), Inter = body & UI.
 */
@font-face{font-family:"Inter";font-style:normal;font-weight:400;font-display:swap;src:url("fonts/inter-latin-400-normal.woff2") format("woff2")}
@font-face{font-family:"Inter";font-style:normal;font-weight:600;font-display:swap;src:url("fonts/inter-latin-600-normal.woff2") format("woff2")}
@font-face{font-family:"Inter";font-style:normal;font-weight:700;font-display:swap;src:url("fonts/inter-latin-700-normal.woff2") format("woff2")}
@font-face{font-family:"Space Grotesk";font-style:normal;font-weight:500;font-display:swap;src:url("fonts/space-grotesk-latin-500-normal.woff2") format("woff2")}
@font-face{font-family:"Space Grotesk";font-style:normal;font-weight:700;font-display:swap;src:url("fonts/space-grotesk-latin-700-normal.woff2") format("woff2")}
:root{
  --font-body:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --font-display:"Space Grotesk",var(--font-body);
  --bg:#0f172a;--bg2:#111c33;--panel:#16223c;--panel2:#1c2c4d;
  --ink:#eaf0ff;--ink-soft:#9fb0d0;
  --accent:#f59e0b;--accent2:#fbbf24;
  --blue:#3b82f6;--blue-soft:#93c5fd;
  --success:#22c55e;--danger:#f87171;
  --border:rgba(159,176,208,.18);        /* decorative panel edges only */
  --border-input:rgba(159,176,208,.62);  /* form controls — ≥3:1 vs panel (WCAG 1.4.11) */
  --grad-cta:linear-gradient(90deg,var(--accent),var(--accent2));
  --ease:cubic-bezier(.22,1,.36,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  background:var(--bg);color:var(--ink);font-size:16px;line-height:1.625;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--blue-soft);text-decoration:none}
/* prose / inline links: branded amber, no underline; subtle line grows on hover */
.lead a,.faq p a,.foot-note a,.weemat-card p a,.src a,.legal-wrap a{
  color:var(--accent2);font-weight:600;text-decoration:none;
  border-bottom:1px solid transparent;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.lead a:hover,.faq p a:hover,.foot-note a:hover,.weemat-card p a:hover,.src a:hover,.legal-wrap a:hover{
  color:var(--accent);border-bottom-color:currentColor;
}
/* visible focus ring for keyboard users — never remove it (WCAG 2.4.7) */
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{
  outline:2px solid var(--accent2);outline-offset:2px;border-radius:4px;
}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.kicker{
  display:inline-block;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);font-size:13px;font-weight:700;margin-bottom:14px;
}
h1,h2,h3,.logo,.stat b{font-family:var(--font-display)}
h1{font-size:clamp(30px,5vw,46px);line-height:1.15;font-weight:700;letter-spacing:-.5px}
h2{font-size:clamp(22px,3.4vw,30px);line-height:1.25;font-weight:700;letter-spacing:-.3px}
h3{font-size:19px;font-weight:700}
.lead{font-size:clamp(16px,2.2vw,19px);line-height:1.55;color:var(--ink-soft)}
.lead strong{color:var(--ink)}

/* ---------- header ---------- */
header.site{
  position:fixed;inset:0 0 auto 0;z-index:60;
  background:rgba(15,23,42,.6);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.site-inner{display:flex;align-items:center;justify-content:space-between;min-height:64px}
.logo{font-weight:800;font-size:21px;color:var(--ink);text-decoration:none;letter-spacing:.4px}
.logo span{background:var(--grad-cta);-webkit-background-clip:text;background-clip:text;color:transparent}
.header-cta{
  background:var(--grad-cta);color:#0f172a;text-decoration:none;font-weight:700;
  font-size:14px;padding:12px 20px;border-radius:999px;white-space:nowrap;
  transition:transform .15s var(--ease),box-shadow .15s var(--ease);
}
.header-cta:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(245,158,11,.35)}

/* ---------- hero + three.js canvas ---------- */
.hero{
  position:relative;min-height:100svh;display:flex;align-items:center;overflow:hidden;
  touch-action:pan-y; /* horizontal drags orbit the 3D scene, vertical still scrolls */
  cursor:grab;
}
.hero:active{cursor:grabbing}
#scene{position:absolute;inset:0;z-index:0}
#scene canvas{display:block;width:100%;height:100%}
.hero::after{ /* readability gradient over the 3D scene — strong behind the text */
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(90deg,rgba(15,23,42,.97) 0%,rgba(15,23,42,.88) 32%,rgba(15,23,42,.45) 58%,rgba(15,23,42,.05) 100%);
}
.hero-content{position:relative;z-index:2;max-width:640px;padding:120px 0 80px;cursor:auto}
.hero-content h1,.hero-content .lead{text-shadow:0 2px 24px rgba(15,23,42,.9)}
.hero-hint{
  position:absolute;right:22px;bottom:20px;z-index:2;pointer-events:none;
  font-size:12.5px;color:var(--ink-soft);opacity:.85;
  background:rgba(15,23,42,.55);border:1px solid var(--border);border-radius:999px;
  padding:6px 14px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.hero .lead{margin:18px 0 30px}
.badge-soon{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:18px;
  background:rgba(245,158,11,.12);border:1px solid rgba(245,158,11,.35);
  color:var(--accent2);font-size:13px;font-weight:700;padding:6px 14px;border-radius:999px;
}
.badge-soon i{width:8px;height:8px;border-radius:50%;background:var(--accent);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.75)}}
.cta{
  display:inline-block;background:var(--grad-cta);color:#0f172a;text-decoration:none;
  font-weight:800;font-size:16px;padding:14px 30px;border-radius:999px;border:0;cursor:pointer;
  transition:transform .15s var(--ease),box-shadow .15s var(--ease);
}
.cta:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(245,158,11,.4)}
.hero-note{margin-top:14px;font-size:13px;color:var(--ink-soft)}
.scroll-hint{
  position:absolute;bottom:22px;left:50%;transform:translateX(-50%);z-index:2;
  color:var(--ink-soft);font-size:22px;animation:bob 2s infinite;text-decoration:none;
}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,8px)}}

/* ---------- sections ---------- */
section{padding:88px 0}
section.alt{background:var(--bg2)}
.sec-head{max-width:680px;margin-bottom:48px}
.sec-head p{margin-top:12px}

/* problem stats */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.stat{
  background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:26px;
}
.stat b{display:block;font-size:34px;font-weight:800;color:var(--accent2);letter-spacing:-1px}
.stat span{color:var(--ink-soft);font-size:14.5px}

/* steps timeline */
.steps{display:grid;gap:14px;counter-reset:step}
.step{
  display:flex;gap:18px;align-items:flex-start;
  background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:20px 22px;
}
.step .num{
  flex:0 0 40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:rgba(59,130,246,.15);border:1px solid rgba(59,130,246,.35);
  color:var(--blue-soft);font-weight:800;font-size:17px;
}
.step p{color:var(--ink-soft);font-size:14.5px;margin-top:2px}

/* why register — 4 cards on one row desktop, 2×2 tablet, 1 col mobile */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media (max-width:960px){.cards{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.cards{grid-template-columns:1fr}}
.card{
  position:relative;overflow:hidden;
  background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:26px 24px;
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.card::before{ /* amber highlight line revealed on hover */
  content:"";position:absolute;inset:0 0 auto 0;height:2px;
  background:var(--grad-cta);opacity:0;transition:opacity .25s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(245,158,11,.4)}
.card:hover::before{opacity:1}
.card .ico{
  display:grid;place-items:center;width:48px;height:48px;border-radius:13px;
  background:rgba(245,158,11,.1);border:1px solid rgba(245,158,11,.28);
  font-size:22px;margin-bottom:16px;
}
.card p{color:var(--ink-soft);font-size:14.5px;margin-top:8px}

/* sources line under stats */
.src{font-size:13px;color:var(--ink-soft);opacity:.85;margin-top:18px}

/* FAQ — centered, hairline list (no boxes), circled + marker */
#faq .sec-head{margin-left:auto;margin-right:auto;text-align:center}
.faq{max-width:760px;margin:0 auto}
.faq details{border-bottom:1px solid var(--border)}
.faq details:first-of-type{border-top:1px solid var(--border)}
.faq summary{
  cursor:pointer;list-style:none;padding:24px 56px 24px 4px;
  font-family:var(--font-display);font-weight:700;font-size:17px;letter-spacing:-.2px;
  position:relative;transition:color .2s var(--ease);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  width:30px;height:30px;display:grid;place-items:center;
  border:1px solid rgba(245,158,11,.45);border-radius:50%;
  color:var(--accent);font-size:17px;font-weight:400;line-height:1;
  transition:transform .3s var(--ease),background .2s var(--ease),color .2s var(--ease);
}
.faq summary:hover{color:var(--accent2)}
.faq details[open] summary{color:var(--accent2)}
.faq details[open] summary::after{
  transform:translateY(-50%) rotate(45deg);
  background:var(--accent);color:#0f172a;border-color:var(--accent);
}
.faq details p{
  padding:0 56px 26px 4px;color:var(--ink-soft);font-size:15px;line-height:1.7;
  animation:faqIn .35s var(--ease);
}
@keyframes faqIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- form ---------- */
.form-panel{
  max-width:560px;margin:0 auto;background:var(--panel);
  border:1px solid rgba(245,158,11,.35);border-radius:20px;padding:36px;
  box-shadow:0 30px 80px rgba(0,0,0,.45);
}
.form-panel h2{text-align:center}
.form-panel .sub{color:var(--ink-soft);text-align:center;font-size:14.5px;margin:10px 0 26px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:700;margin-bottom:6px;color:var(--ink)}
.field input,.field select{
  width:100%;background:var(--bg2);border:1px solid var(--border-input);border-radius:12px;
  color:var(--ink);font-size:15px;padding:12px 14px;font-family:var(--font-body);
  transition:border-color .15s var(--ease),box-shadow .15s var(--ease);
  appearance:none;-webkit-appearance:none;
}
.field input::placeholder{color:var(--ink-soft);opacity:1}
.field select{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239fb0d0' stroke-width='2' fill='none'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;
}
.field input:focus,.field select:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(245,158,11,.18)}
.field .err{display:none;color:var(--danger);font-size:13px;margin-top:5px}
.field.invalid input,.field.invalid select{border-color:var(--danger)}
.field.invalid .err{display:block}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--ink-soft);margin:4px 0 20px}
.consent input{margin-top:3px;accent-color:var(--accent)}
.hp{position:absolute;left:-9999px;opacity:0;height:0;overflow:hidden} /* honeypot */
.submit{width:100%;font-size:16px}
.submit[disabled]{opacity:.6;cursor:wait;transform:none}
.form-msg{margin-top:14px;font-size:14px;text-align:center;display:none}
.form-msg.error{display:block;color:var(--danger)}
.counter{
  text-align:center;color:var(--ink-soft);font-size:13.5px;margin-top:18px;display:none;
}
.counter b{color:var(--accent2)}

/* success state */
.success{display:none;text-align:center;padding:22px 0}
.success .check{
  width:64px;height:64px;margin:0 auto 18px;border-radius:50%;
  background:rgba(34,197,94,.15);border:1px solid rgba(34,197,94,.45);
  display:grid;place-items:center;font-size:30px;color:var(--success);
}
.success p{color:var(--ink-soft);font-size:14.5px;margin-top:10px}
.form-panel.done form,.form-panel.done .sub{display:none}
.form-panel.done .success{display:block}

/* ---------- three gains (temps / argent / sérénité) ---------- */
.gains-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media (max-width:820px){.gains-grid{grid-template-columns:1fr}}
.gain{
  position:relative;background:var(--panel);border:1px solid var(--border);
  border-radius:18px;padding:30px 26px;overflow:hidden;
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.gain:hover{transform:translateY(-4px);border-color:rgba(245,158,11,.4)}
.gain-ico{
  display:grid;place-items:center;width:56px;height:56px;border-radius:16px;
  background:rgba(245,158,11,.1);border:1px solid rgba(245,158,11,.28);
  font-size:26px;margin-bottom:16px;
}
.gain h3{font-size:20px;margin-bottom:8px}
.gain p{color:var(--ink-soft);font-size:14.5px;line-height:1.65}

/* ---------- architecture / weemat 3D flow ---------- */
.flow-scene{
  width:100%;height:300px;margin:0 auto 8px;
  border-radius:20px;
  background:radial-gradient(120% 100% at 50% 20%,rgba(28,44,77,.5),transparent 70%);
}
.flow-scene canvas{display:block;width:100%;height:100%}
@media (max-width:640px){.flow-scene{height:240px}}
.flow-steps{
  list-style:none;display:flex;flex-wrap:nowrap;align-items:stretch;justify-content:center;
  gap:8px;margin:6px auto 22px;max-width:940px;
}
.flow-steps li{
  flex:1 1 0;min-width:0;text-align:center;
  background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:16px 10px;
}
.flow-steps li.fs-arrow{
  flex:0 0 auto;align-self:center;background:none;border:none;padding:0;
  color:var(--accent);font-size:20px;font-weight:700;
}
.flow-steps .fs-ico{display:block;font-size:26px;margin-bottom:8px}
.flow-steps b{display:block;font-family:var(--font-display);font-size:14.5px;color:var(--ink);line-height:1.25}
.flow-steps i{display:block;font-style:normal;font-size:12px;color:var(--ink-soft);margin-top:4px;line-height:1.4}
/* below tablet: stack vertically so nothing gets cramped or wraps oddly */
@media (max-width:780px){
  .flow-steps{flex-direction:column;flex-wrap:wrap;max-width:360px;gap:6px}
  .flow-steps li{flex:1 1 auto;padding:14px 12px}
  .flow-steps li.fs-arrow{transform:rotate(90deg);padding:2px 0}
}

/* weemat presentation card */
.weemat-card{
  max-width:820px;margin:6px auto 18px;
  background:linear-gradient(135deg,var(--panel2),var(--panel));
  border:1px solid rgba(245,158,11,.3);border-radius:20px;padding:32px 30px;
}
.weemat-card .kicker{margin-bottom:10px}
.weemat-card h3{font-size:21px;margin-bottom:14px}
.weemat-card p{color:var(--ink-soft);font-size:14.5px;line-height:1.7;margin-bottom:12px}
.weemat-card strong{color:var(--ink)}
.wm-link{
  display:inline-block;margin-top:6px;color:var(--accent2);font-weight:700;
  font-size:14.5px;text-decoration:none;transition:transform .15s var(--ease)}
.wm-link:hover{transform:translateX(3px)}

/* footer disclosure line */
.foot-note{
  color:var(--ink-soft);font-size:13.5px;line-height:1.6;
  padding-bottom:20px;margin-bottom:20px;border-bottom:1px solid var(--border);
}
.foot-note strong{color:var(--accent2)}

/* ---------- chat demo (iMessage-style, matches product design) ---------- */
.chat-shell{
  max-width:520px;margin:0 auto;background:var(--bg2);
  border:1px solid var(--border);border-radius:20px;overflow:hidden;
  box-shadow:0 30px 80px rgba(0,0,0,.45);
}
.chat-head{
  display:flex;align-items:center;gap:10px;padding:14px 18px;
  background:var(--panel);border-bottom:1px solid var(--border);font-size:13.5px;
}
.chat-dot{width:9px;height:9px;border-radius:50%;background:var(--success);flex:0 0 auto;animation:pulse 2s infinite}
.chat-title{font-weight:700}
.chat-status{margin-left:auto;color:var(--ink-soft);font-size:12px}
.chat-body{
  height:480px;padding:18px 16px;overflow:hidden;position:relative;
  display:flex;flex-direction:column;gap:10px;
  -webkit-mask-image:linear-gradient(180deg,transparent 0,#000 26px);
  mask-image:linear-gradient(180deg,transparent 0,#000 26px);
}
.msg{
  max-width:82%;font-size:14px;line-height:1.5;
  opacity:0;transform:translateY(14px);
  transition:opacity .45s var(--ease),transform .45s var(--ease);
}
.msg.show{opacity:1;transform:none}
.msg .who{display:block;font-size:11px;font-weight:700;letter-spacing:.04em;margin-bottom:4px}
.m-client{align-self:flex-end;background:var(--panel2);border-radius:16px 16px 4px 16px;padding:10px 14px}
.m-ai{align-self:flex-start;background:var(--panel);border-left:2px solid var(--blue);border-radius:4px 16px 16px 16px;padding:10px 14px}
.m-ai .who{color:var(--blue-soft)}
.m-assoc{align-self:flex-start;background:var(--panel);border-left:2px solid var(--accent);border-radius:4px 16px 16px 16px;padding:10px 14px}
.m-assoc .who{color:var(--accent2)}
.m-sys{
  align-self:center;background:rgba(59,130,246,.12);border:1px solid rgba(59,130,246,.3);
  color:var(--blue-soft);font-size:12px;font-weight:600;padding:5px 14px;border-radius:999px;
}
.quick{display:flex;gap:8px;margin-top:8px}
.quick span{
  font-size:12.5px;font-weight:700;padding:5px 16px;border-radius:999px;
  border:1px solid rgba(59,130,246,.45);color:var(--blue-soft);
}
.quick span.sel{background:var(--blue-soft);color:#0f172a;border-color:var(--blue-soft)}
/* typing indicator */
.typing{align-self:flex-start;background:var(--panel);border-radius:4px 16px 16px 16px;padding:12px 16px;display:flex;gap:5px}
.typing i{width:7px;height:7px;border-radius:50%;background:var(--ink-soft);animation:tp 1.1s infinite}
.typing i:nth-child(2){animation-delay:.18s}
.typing i:nth-child(3){animation-delay:.36s}
@keyframes tp{0%,60%,100%{opacity:.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-4px)}}
/* devis card message */
.m-devis{
  align-self:flex-start;max-width:92%;background:var(--panel);
  border:1px solid rgba(245,158,11,.4);border-radius:14px;padding:14px 16px;width:100%;
}
.m-devis h4{font-size:13px;color:var(--accent2);margin-bottom:8px}
.m-devis .row{display:flex;justify-content:space-between;gap:12px;font-size:13px;color:var(--ink-soft);padding:3px 0}
.m-devis .row b{color:var(--ink);font-weight:600;white-space:nowrap}
.m-devis .total{border-top:1px solid var(--border);margin-top:6px;padding-top:8px;font-size:14px}
.m-devis .total b{color:var(--accent2);font-size:15px}
.m-devis .actions{display:flex;gap:8px;margin-top:12px}
.m-devis .actions span{
  flex:1;text-align:center;font-size:12.5px;font-weight:700;padding:8px 10px;border-radius:10px;
}
.m-devis .actions .ok{background:var(--grad-cta);color:#0f172a}
.m-devis .actions .alt2{border:1px solid var(--border);color:var(--ink-soft)}
.chat-note{text-align:center;color:var(--ink-soft);font-size:13px;margin-top:16px;max-width:560px;margin-left:auto;margin-right:auto}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--border);padding:34px 0;font-size:13.5px;color:var(--ink-soft)}
.foot{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center}
.foot a{color:var(--ink-soft);text-decoration:none}
.foot a:hover{color:var(--ink)}

@media (max-width:640px){
  .grid2{grid-template-columns:1fr}
  .form-panel{padding:26px 20px}
  .hero-content{padding-top:96px;padding-bottom:46vh} /* text on top, chantier below */
  .hero::after{background:linear-gradient(180deg,rgba(15,23,42,.96) 0%,rgba(15,23,42,.85) 38%,rgba(15,23,42,.35) 62%,rgba(15,23,42,.12) 100%)}
  .hero-hint{right:50%;transform:translateX(50%);bottom:56px;white-space:nowrap} /* above the ▾ arrow */
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}