:root{
  --terre:#c4704f;--terre-fonce:#a55a3c;--sauge:#8faf9b;--sauge-fonce:#5f8a6e;--sable:#f3e9dc;--fond:#fbf7f1;
  --texte:#2b2622;--secondaire:#625a52;--ligne:#e8ddcf;--blanc:#fff;--nuit:#2b2622;
  --serif:"Fraunces",Georgia,"Times New Roman",serif;--sans:"Plus Jakarta Sans",Inter,ui-sans-serif,system-ui,sans-serif;
  --pad:clamp(20px,7vw,120px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--fond);color:var(--texte);font-family:var(--sans);line-height:1.65;font-size:16.5px}
img{max-width:100%}
a{color:var(--terre-fonce)}
h1,h2,h3{font-family:var(--serif);letter-spacing:-.02em;line-height:1.08;margin:0;font-weight:600}
.eyebrow{font-family:var(--sans);letter-spacing:.14em;font-size:12px;font-weight:800;text-transform:uppercase;color:var(--terre-fonce);margin:0 0 16px}
.skip{position:absolute;left:-999px;top:0;background:var(--nuit);color:#fff;padding:8px 12px}
.skip:focus{left:12px;top:12px;z-index:50}

/* header */
.site-header{position:sticky;top:0;z-index:20;height:78px;padding:0 var(--pad);display:flex;align-items:center;justify-content:space-between;background:rgba(251,247,241,.9);backdrop-filter:blur(12px);border-bottom:1px solid rgba(43,38,34,.08)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--texte)}
.brand img{width:40px;height:40px}
.brand span{font-family:var(--serif);font-size:26px;font-weight:600;letter-spacing:-.01em}
.site-header nav{display:flex;align-items:center;gap:26px}
.site-header nav a{font-size:14.5px;font-weight:650;color:var(--texte);text-decoration:none}
.site-header nav a:hover{color:var(--terre-fonce)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;font-weight:750;border-radius:12px;padding:13px 20px;font-size:15px;transition:transform .2s ease,background .2s ease;border:1px solid transparent}
.btn:hover{transform:translateY(-2px)}
.btn-terre{background:var(--terre);color:#fff}
.btn-terre:hover{background:var(--terre-fonce)}
.btn-ligne{border-color:rgba(43,38,34,.25);color:var(--texte)}
.btn-ligne:hover{border-color:var(--texte)}
.btn-blanc{background:#fff;color:var(--texte)}
.nav-cta{padding:10px 16px}

/* hero */
.hero{padding:clamp(64px,9vw,120px) var(--pad);display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(32px,6vw,90px);align-items:center;position:relative;overflow:hidden}
.hero h1{font-size:clamp(40px,5.6vw,74px);max-width:11ch}
.hero h1 em{font-style:italic;color:var(--terre-fonce)}
.hero-text{font-size:clamp(17px,1.5vw,20px);color:var(--secondaire);max-width:54ch;margin:26px 0 32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-note{font-size:13.5px;color:var(--secondaire);margin-top:22px}
.hero-visual{position:relative;min-height:420px}
.hero-card{position:absolute;background:#fff;border:1px solid var(--ligne);border-radius:18px;padding:18px 20px;box-shadow:0 20px 50px rgba(43,38,34,.08);width:min(320px,80%)}
.hero-card .lbl{font-size:11px;letter-spacing:.12em;font-weight:800;color:var(--sauge-fonce);text-transform:uppercase}
.hero-card p{margin:8px 0 0;font-size:14.5px;color:var(--texte)}
.hero-card .meta{font-size:12.5px;color:var(--secondaire);margin-top:10px}
.hero-card.c1{top:0;left:0}
.hero-card.c2{top:150px;right:0;background:var(--sable)}
.hero-card.c3{bottom:0;left:40px}
.hero-card .tag{display:inline-block;margin-top:10px;font-size:12px;font-weight:750;padding:4px 10px;border-radius:999px;background:var(--sable);color:var(--terre-fonce)}
.hero-card.c2 .tag{background:#fff}
.blob{position:absolute;right:-8%;top:-10%;width:520px;height:520px;border-radius:48% 52% 45% 55%;background:radial-gradient(circle at 30% 30%,rgba(143,175,155,.35),rgba(196,112,79,.12) 60%,transparent 75%);z-index:-1}

/* sections */
.section{padding:clamp(64px,8vw,110px) var(--pad)}
.section-head{max-width:720px;margin-bottom:clamp(32px,4vw,56px)}
.section h2{font-size:clamp(30px,3.6vw,48px)}
.section-head p{font-size:18px;color:var(--secondaire);margin:18px 0 0}
.alt{background:var(--sable)}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.card{background:#fff;border:1px solid var(--ligne);border-radius:18px;padding:28px}
.card h3{font-size:22px;margin-bottom:10px}
.card p{margin:0;color:var(--secondaire);font-size:15.5px}
.card .ico{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;margin-bottom:18px;background:var(--sable);color:var(--terre-fonce)}
.card .ico svg{width:22px;height:22px}

/* IA */
.ia{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,80px);align-items:center}
.ia ul{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:14px}
.ia li{padding-left:30px;position:relative;color:var(--texte)}
.ia li:before{content:"";position:absolute;left:0;top:7px;width:16px;height:16px;border-radius:50%;background:var(--sauge)}
.ia-panel{background:var(--nuit);color:#f3e9dc;border-radius:22px;padding:30px}
.ia-panel .lbl{font-size:11px;letter-spacing:.12em;font-weight:800;text-transform:uppercase;color:var(--sauge)}
.ia-panel .obs{margin:12px 0 0;padding:14px 16px;border-radius:12px;background:rgba(255,255,255,.07);font-size:14.5px;line-height:1.6}
.ia-panel .brouillon{margin-top:18px;padding:16px;border-radius:12px;background:#fff;color:var(--texte);font-size:14.5px;position:relative}
.ia-panel .brouillon:before{content:"Brouillon proposé par Élia";display:block;font-size:11px;letter-spacing:.12em;font-weight:800;text-transform:uppercase;color:var(--terre-fonce);margin-bottom:8px}
.ia-panel .valid{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}
.ia-panel .valid span{font-size:13px;font-weight:700;padding:7px 12px;border-radius:999px;border:1px solid rgba(243,233,220,.35)}
.ia-panel .valid span.ok{background:var(--sauge);color:var(--nuit);border-color:transparent}

/* apps */
.apps{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.app-card{border-radius:22px;padding:34px;background:#fff;border:1px solid var(--ligne)}
.app-card.parents{background:linear-gradient(160deg,#fff 0%,var(--sable) 100%)}
.app-card .who{font-size:12px;letter-spacing:.12em;font-weight:800;text-transform:uppercase;color:var(--sauge-fonce)}
.app-card h3{font-size:28px;margin:10px 0 12px}
.app-card p{color:var(--secondaire);margin:0 0 20px}
.app-card ul{margin:0 0 24px;padding-left:20px;color:var(--texte);font-size:15px}
.app-card li{margin:6px 0}
.stores{display:flex;gap:12px;flex-wrap:wrap}
.store{display:inline-flex;align-items:center;gap:10px;padding:10px 16px;border-radius:12px;background:var(--nuit);color:#fff;text-decoration:none;font-size:13px;line-height:1.15;opacity:.55;cursor:not-allowed}
.store svg{width:22px;height:22px;fill:#fff}
.store small{display:block;font-size:10px;font-weight:600;letter-spacing:.04em;opacity:.85}
.store b{font-size:15px;font-weight:700}
.soon{display:inline-block;margin-top:12px;font-size:13px;font-weight:700;color:var(--terre-fonce)}

/* confiance */
.trust{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.trust .card{padding:24px}
.trust h3{font-size:18px}

/* CTA */
.cta{background:var(--nuit);color:#f3e9dc;padding:clamp(64px,8vw,110px) var(--pad);display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}
.cta h2{font-size:clamp(30px,3.6vw,48px);color:#fff}
.cta p{color:#d9cfc2;font-size:18px;margin:18px 0 0}
.cta-box{background:rgba(255,255,255,.06);border:1px solid rgba(243,233,220,.2);border-radius:20px;padding:28px}
.cta-box a.big{font-family:var(--serif);font-size:24px;color:#fff;text-decoration:none;word-break:break-word}
.cta-box p{font-size:15px;margin:12px 0 20px}

/* footer */
footer{padding:40px var(--pad);background:#1f1b18;color:#b9ada0;font-size:13.5px;display:grid;grid-template-columns:auto 1fr auto;gap:26px;align-items:center}
footer .brand span{color:#fff;font-size:22px}
footer p{margin:0}
footer div.links{display:flex;gap:20px;flex-wrap:wrap}
footer a{color:#fff;text-decoration:none}

/* pages secondaires */
.page{max-width:760px;margin:0 auto;padding:clamp(56px,7vw,90px) var(--pad)}
.page h1{font-size:clamp(34px,4.4vw,54px)}
.page p{color:var(--texte)}
.page .lead{font-size:19px;color:var(--secondaire);margin:20px 0 32px}
.page .box{background:#fff;border:1px solid var(--ligne);border-radius:18px;padding:26px;margin:22px 0}
.page .box h2{font-size:22px;margin-bottom:10px}
.page ol{padding-left:22px}
.page li{margin:8px 0}

@media(max-width:900px){
  .hero,.ia,.cta,.apps,.grid-2{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr}
  .trust{grid-template-columns:1fr 1fr}
  .hero-visual{min-height:0;margin-top:10px;display:grid;gap:12px}
  .hero-card{position:static;width:100%}
  .site-header{height:70px}
  .site-header nav a:not(.nav-cta){display:none}
  .brand img{width:34px;height:34px}.brand span{font-size:22px}
  footer{grid-template-columns:1fr;gap:14px}
}
@media(max-width:560px){.trust{grid-template-columns:1fr}.hero-actions .btn{width:100%}}

/* ===== Logo pièce de monnaie + avatar ===== */
.brand .brand-name{font-family:var(--serif);font-size:26px;font-weight:600;letter-spacing:-.01em;color:var(--texte);text-decoration:none}
.coin{appearance:none;border:0;background:none;padding:0;width:44px;height:44px;cursor:pointer;perspective:600px;border-radius:50%;position:relative}
.coin:focus-visible{outline:3px solid var(--sauge);outline-offset:3px}
.coin-inner{display:block;width:44px;height:44px;position:relative;transform-style:preserve-3d;transition:transform .7s cubic-bezier(.4,.2,.2,1)}
.coin:hover .coin-inner,.coin:focus-visible .coin-inner,.coin.is-flipped .coin-inner{transform:rotateY(180deg)}
.coin-face{position:absolute;inset:0;width:44px;height:44px;border-radius:50%;backface-visibility:hidden;-webkit-backface-visibility:hidden;object-fit:cover;display:block}
.coin-back{transform:rotateY(180deg);background:var(--sable);border:2px solid var(--terre);box-shadow:0 6px 16px rgba(196,112,79,.35)}
.coin::after{content:"Parler avec Élia";position:absolute;left:52px;top:50%;transform:translateY(-50%) translateX(-6px);white-space:nowrap;background:var(--nuit);color:#fff;font-size:12px;font-weight:700;padding:6px 10px;border-radius:8px;opacity:0;pointer-events:none;transition:opacity .25s ease .35s,transform .25s ease .35s}
.coin:hover::after{opacity:1;transform:translateY(-50%) translateX(0)}
@media(prefers-reduced-motion:reduce){.coin-inner{transition:none}}
footer .brand .brand-name{color:#fff;font-size:22px}
@media(max-width:900px){.brand .brand-name{font-size:22px}.coin::after{display:none}}

/* ===== Clavardage Élia ===== */
.elia-chat{position:fixed;right:20px;bottom:20px;width:min(400px,calc(100vw - 24px));height:min(620px,calc(100vh - 100px));background:#fff;border:1px solid var(--ligne);border-radius:22px;box-shadow:0 30px 80px rgba(43,38,34,.22);display:flex;flex-direction:column;overflow:hidden;z-index:60;transform:translateY(16px) scale(.98);opacity:0;pointer-events:none;transition:opacity .25s ease,transform .25s ease}
.elia-chat.is-open{opacity:1;transform:none;pointer-events:auto}
.elia-chat header{display:flex;align-items:center;gap:12px;padding:14px 16px;background:var(--sable);border-bottom:1px solid var(--ligne)}
.elia-chat header img{width:44px;height:44px;border-radius:50%;object-fit:cover;background:#fff;border:2px solid var(--terre)}
.elia-chat header .who{flex:1;min-width:0}
.elia-chat header .who b{display:block;font-family:var(--serif);font-size:20px;font-weight:600;line-height:1.1}
.elia-chat header .who span{display:block;font-size:12.5px;color:var(--secondaire)}
.elia-chat header .dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--sauge-fonce);margin-right:5px;vertical-align:middle}
.elia-chat .close{appearance:none;border:0;background:#fff;width:36px;height:36px;border-radius:50%;cursor:pointer;font-size:20px;line-height:1;color:var(--texte);display:grid;place-items:center}
.elia-chat .close:hover{background:var(--ligne)}
.elia-chat .log{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:10px;background:var(--fond);scroll-behavior:smooth}
.msg{max-width:86%;padding:10px 14px;border-radius:16px;font-size:14.5px;line-height:1.55;white-space:pre-wrap;word-wrap:break-word}
.msg.elia{align-self:flex-start;background:#fff;border:1px solid var(--ligne);border-bottom-left-radius:6px}
.msg.user{align-self:flex-end;background:var(--terre);color:#fff;border-bottom-right-radius:6px}
.msg.error{align-self:flex-start;background:#fdecea;color:#8a2a1c;border:1px solid #f3c7c0}
.msg.typing{display:inline-flex;gap:4px;align-items:center;padding:12px 16px}
.msg.typing i{width:6px;height:6px;border-radius:50%;background:var(--secondaire);animation:eliaBlink 1.2s infinite}
.msg.typing i:nth-child(2){animation-delay:.2s}.msg.typing i:nth-child(3){animation-delay:.4s}
@keyframes eliaBlink{0%,80%,100%{opacity:.25}40%{opacity:1}}
.chips{display:flex;flex-wrap:wrap;gap:8px;padding:0 16px 10px;background:var(--fond)}
.chips button{appearance:none;border:1px solid var(--ligne);background:#fff;color:var(--terre-fonce);font-weight:650;font-size:12.5px;padding:7px 11px;border-radius:999px;cursor:pointer}
.chips button:hover{border-color:var(--terre);background:var(--sable)}
.elia-chat form{display:flex;gap:8px;padding:12px;border-top:1px solid var(--ligne);background:#fff}
.elia-chat textarea{flex:1;resize:none;border:1px solid var(--ligne);border-radius:12px;padding:10px 12px;font:inherit;font-size:14.5px;line-height:1.4;max-height:120px;color:var(--texte)}
.elia-chat textarea:focus{outline:2px solid var(--sauge);border-color:transparent}
.elia-chat form button{appearance:none;border:0;background:var(--terre);color:#fff;font-weight:750;border-radius:12px;padding:0 16px;cursor:pointer;font-size:14px}
.elia-chat form button:disabled{opacity:.5;cursor:default}
.elia-chat .note{font-size:11px;color:var(--secondaire);text-align:center;padding:0 12px 10px;background:#fff;margin:0}
@media(max-width:560px){.elia-chat{right:0;bottom:0;width:100vw;height:100dvh;border-radius:0;border:0}}