/* =========================================================
   K-Invest Digital — Design system premium
   Charte Kaïéo : noir + vert #BAE197, Modak (display rond/rebondissant) + Archivo
   ========================================================= */
:root{
  --vert:#bae197;
  --vert-vif:#cdf0a6;
  --vert-sombre:#8fbf66;
  --noir:#0d0d0d;
  --noir-2:#070707;
  --carte:#161616;
  --carte-2:#1e1e1e;
  --bord:rgba(255,255,255,.08);
  --bord-fort:rgba(186,225,151,.35);
  --texte:#f4f5ef;
  --muet:#989b8f;
  --radius:22px;
  --radius-lg:30px;
  --max:1200px;
  --display:"Modak", system-ui, sans-serif;
  --sans:"Archivo", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --bounce:cubic-bezier(.34,1.56,.64,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--noir);color:var(--texte);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
h1,h2,h3,h4{font-family:var(--sans);font-weight:800;line-height:1.08;letter-spacing:-.02em}
a{color:var(--vert);text-decoration:none}
img{max-width:100%;display:block}
::selection{background:var(--vert);color:#0d0d0d}

/* Utilitaires display Modak */
.modak{font-family:var(--display);font-weight:400;letter-spacing:.01em;-webkit-text-stroke:0}

/* ---- Animations au scroll ---- */
.reveal{opacity:0;transform:translateY(38px)}
.reveal.in{opacity:1;transform:none;transition:opacity .7s ease,transform .8s var(--bounce)}
.reveal.d1.in{transition-delay:.08s}.reveal.d2.in{transition-delay:.16s}
.reveal.d3.in{transition-delay:.24s}.reveal.d4.in{transition-delay:.32s}
.reveal.d5.in{transition-delay:.40s}.reveal.d6.in{transition-delay:.48s}
.pop{opacity:0;transform:scale(.8)}
.pop.in{opacity:1;transform:none;transition:opacity .5s ease,transform .7s var(--bounce)}
@media (prefers-reduced-motion:reduce){.reveal,.pop{opacity:1!important;transform:none!important;transition:none!important}}

/* ---- Boutons ---- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font-family:var(--sans);font-weight:800;font-size:1rem;padding:.95rem 1.8rem;border-radius:50px;border:2px solid transparent;cursor:pointer;transition:transform .25s var(--bounce),box-shadow .25s,background .2s,color .2s;line-height:1.1;text-align:center;letter-spacing:-.01em}
.btn:hover{transform:translateY(-3px) scale(1.03)}
.btn:active{transform:translateY(-1px) scale(.99)}
.btn-primary{background:var(--vert);color:#0d0d0d;box-shadow:0 10px 30px rgba(186,225,151,.25)}
.btn-primary:hover{background:var(--vert-vif);color:#0d0d0d;box-shadow:0 16px 40px rgba(186,225,151,.4)}
.btn-ghost{background:transparent;border-color:var(--bord);color:var(--texte)}
.btn-ghost:hover{border-color:var(--vert);color:var(--vert)}
.btn-block{display:flex;width:100%}
.btn-lg{padding:1.15rem 2rem;font-size:1.1rem}
.btn-sm{padding:.7rem 1.3rem;font-size:.95rem}

/* ---- En-tête ---- */
.hdr{position:sticky;top:0;z-index:100;background:rgba(13,13,13,.7);backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:padding .3s,background .3s,border-color .3s}
.hdr.scrolled{background:rgba(10,10,10,.9);border-color:var(--bord)}
.hdr-in{display:flex;align-items:center;justify-content:space-between;padding:1rem 24px;transition:padding .3s}
.hdr.scrolled .hdr-in{padding:.6rem 24px}
.brand{display:flex;align-items:center;gap:.6rem;color:var(--texte)}
.brand-mark{height:40px;width:auto;transition:transform .4s var(--bounce)}
.brand:hover .brand-mark{transform:rotate(-6deg) scale(1.08)}
.brand-txt{font-family:var(--sans);font-weight:800;font-size:1.35rem;letter-spacing:-.03em}
.brand-accent{color:var(--vert)}
.nav{display:flex;align-items:center;gap:1.8rem}
.nav a{color:var(--texte);font-weight:600;font-size:.97rem;opacity:.85;transition:opacity .2s,color .2s}
.nav a:hover{color:var(--vert);opacity:1}
.nav-cta{background:var(--vert);color:#0d0d0d!important;padding:.6rem 1.3rem;border-radius:50px;opacity:1!important;transition:transform .25s var(--bounce),background .2s}
.nav-cta:hover{background:var(--vert-vif);transform:translateY(-2px)}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.burger span{width:26px;height:3px;background:var(--texte);border-radius:3px;transition:.25s}

/* ---- Héro ---- */
.hero{position:relative;overflow:hidden;padding:6.5rem 0 5rem}
.hero-blob{position:absolute;border-radius:50%;filter:blur(70px);opacity:.5;pointer-events:none;z-index:0}
.hero-blob.b1{width:520px;height:520px;background:radial-gradient(circle,rgba(186,225,151,.5),transparent 70%);top:-140px;right:-80px;animation:float1 14s ease-in-out infinite}
.hero-blob.b2{width:360px;height:360px;background:radial-gradient(circle,rgba(186,225,151,.28),transparent 70%);bottom:-120px;left:-60px;animation:float2 18s ease-in-out infinite}
@keyframes float1{0%,100%{transform:translate(0,0)}50%{transform:translate(-30px,40px)}}
@keyframes float2{0%,100%{transform:translate(0,0)}50%{transform:translate(40px,-30px)}}
.hero-in{position:relative;z-index:2;max-width:960px}
.eyebrow{display:inline-flex;align-items:center;gap:.5rem;text-transform:uppercase;letter-spacing:.16em;font-weight:700;font-size:.76rem;color:var(--vert);background:rgba(186,225,151,.08);border:1px solid rgba(186,225,151,.25);padding:.45rem 1rem;border-radius:50px;margin-bottom:1.6rem}
.eyebrow.center{margin-left:auto;margin-right:auto}
.hero h1{font-size:clamp(2.6rem,6.5vw,5rem);font-weight:800;margin-bottom:1.6rem;letter-spacing:-.03em}
.hero h1 .hl{font-family:var(--display);font-weight:400;color:var(--vert);letter-spacing:.01em;display:inline-block;padding:0 .05em}
.hero-sub{font-size:clamp(1.08rem,2vw,1.35rem);color:var(--muet);max-width:700px;margin-bottom:2.4rem}
.hero-sub strong{color:var(--texte);font-weight:700}
.hero-cta{display:flex;flex-wrap:wrap;gap:1rem;margin-bottom:2.6rem}
.hero-badges{list-style:none;display:flex;flex-wrap:wrap;gap:.7rem 1.6rem;font-weight:600;color:var(--texte);font-size:.96rem}
.hero-badges li{display:flex;align-items:center;gap:.5rem}
.hero-badges svg{width:18px;height:18px;flex:none;color:var(--vert)}

/* ---- Marquee ---- */
.marquee{border-block:1px solid var(--bord);background:var(--noir-2);padding:1.1rem 0;overflow:hidden;white-space:nowrap}
.marquee-track{display:inline-flex;gap:3rem;animation:scrollx 26s linear infinite;will-change:transform}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee span{font-family:var(--display);font-weight:400;font-size:1.5rem;color:var(--texte);opacity:.75;display:inline-flex;align-items:center;gap:3rem}
.marquee span::after{content:"";width:12px;height:12px;border-radius:50%;background:var(--vert)}
@keyframes scrollx{to{transform:translateX(-50%)}}

/* ---- Sections ---- */
.section{padding:6rem 0;position:relative}
.section-alt{background:var(--noir-2)}
.h2{font-size:clamp(2rem,4.2vw,3.1rem);margin-bottom:1rem;font-weight:800}
.h2 .modak{color:var(--vert);font-weight:400}
.center{text-align:center}
.lead{color:var(--muet);font-size:1.14rem;max-width:660px;margin:0 auto 3.2rem}
.eyebrow-lite{display:block;text-transform:uppercase;letter-spacing:.18em;font-weight:700;font-size:.78rem;color:var(--vert);margin-bottom:.9rem}
.eyebrow-lite.center{text-align:center}

/* ---- Grille expertises ---- */
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.4rem}
.card{background:var(--carte);border:1px solid var(--bord);border-radius:var(--radius);padding:2rem 1.8rem;transition:transform .35s var(--bounce),border-color .35s,background .35s;position:relative;overflow:hidden}
.card::before{content:"";position:absolute;inset:0;background:radial-gradient(400px circle at var(--mx,50%) var(--my,0%),rgba(186,225,151,.08),transparent 60%);opacity:0;transition:opacity .3s}
.card:hover{transform:translateY(-8px);border-color:var(--bord-fort);background:var(--carte-2)}
.card:hover::before{opacity:1}
.ico{width:60px;height:60px;border-radius:16px;background:rgba(186,225,151,.10);border:1px solid rgba(186,225,151,.2);display:flex;align-items:center;justify-content:center;margin-bottom:1.3rem;transition:transform .4s var(--bounce)}
.card:hover .ico{transform:translateY(-4px) rotate(-6deg)}
.ico svg{width:30px;height:30px;color:var(--vert)}
.card h3{font-size:1.3rem;margin-bottom:.55rem;font-weight:800}
.card p{color:var(--muet);font-size:1rem}
.card p strong{color:var(--texte)}

/* ---- Système Kaïéo (preuve) ---- */
.proof{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center;margin-top:1rem}
.kaieo-word{font-family:var(--display);font-weight:400;font-size:clamp(2.4rem,5vw,3.6rem);color:var(--texte);line-height:1;margin-bottom:.3rem}
.proof-cat{color:var(--vert);font-weight:700;margin-bottom:1.4rem;font-size:1.02rem}
.proof ul{list-style:none;display:grid;gap:.9rem;margin-bottom:1.6rem}
.proof li{display:flex;gap:.8rem;align-items:flex-start;color:var(--texte);font-weight:500}
.proof li svg{width:22px;height:22px;flex:none;color:var(--vert);margin-top:2px}
.proof-res{color:var(--muet);margin-bottom:1.6rem}
.proof-res strong{color:var(--texte)}
/* Dashboard mockup */
.dash{background:#0a0a0a;border:1px solid var(--bord);border-radius:var(--radius);padding:1.5rem;box-shadow:0 40px 90px rgba(0,0,0,.6);position:relative}
.dash::after{content:"";position:absolute;inset:0;border-radius:var(--radius);box-shadow:inset 0 1px 0 rgba(255,255,255,.06);pointer-events:none}
.dash-head{display:flex;align-items:center;gap:.6rem;color:var(--muet);font-size:.85rem;font-weight:600;margin-bottom:1.2rem}
.dash-dot{width:10px;height:10px;border-radius:50%;background:var(--vert);box-shadow:0 0 12px var(--vert);animation:pulse 2s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.dash-kpis{display:grid;grid-template-columns:1fr 1fr;gap:.8rem;margin-bottom:1.2rem}
.kpi{background:var(--carte);border:1px solid var(--bord);border-radius:14px;padding:.9rem 1rem}
.kpi-lbl{display:block;color:var(--muet);font-size:.74rem;margin-bottom:.25rem;text-transform:uppercase;letter-spacing:.05em}
.kpi-val{display:block;font-family:var(--display);font-weight:400;font-size:1.75rem;color:var(--vert);line-height:1}
.dash-bars{display:flex;align-items:flex-end;gap:9px;height:78px;margin-bottom:1rem}
.dash-bars i{flex:1;background:linear-gradient(180deg,var(--vert),var(--vert-sombre));border-radius:6px 6px 0 0;min-height:6px;transform-origin:bottom;animation:grow 1s var(--bounce) both}
@keyframes grow{from{transform:scaleY(0)}to{transform:scaleY(1)}}
.dash-foot{color:var(--texte);font-size:.86rem;font-weight:600;background:rgba(186,225,151,.10);border:1px solid rgba(186,225,151,.22);border-radius:12px;padding:.6rem .8rem;display:flex;align-items:center;gap:.5rem}
.dash-foot svg{width:18px;height:18px;color:var(--vert);flex:none}
.dash-note{text-align:center;color:var(--muet);font-size:.8rem;font-style:italic;margin-top:.8rem}

/* ---- Méthode ---- */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1.4rem}
.step{background:var(--carte);border:1px solid var(--bord);border-radius:var(--radius);padding:2rem 1.7rem;transition:transform .35s var(--bounce),border-color .35s}
.step:hover{transform:translateY(-6px);border-color:var(--bord-fort)}
.step-n{font-family:var(--display);font-weight:400;font-size:2.4rem;color:var(--vert);line-height:1;margin-bottom:.7rem;display:block}
.step h3{font-size:1.25rem;margin-bottom:.5rem;font-weight:800}
.step p{color:var(--muet);font-size:.98rem}

/* ---- Tarifs / packs ---- */
.pricing{display:grid;grid-template-columns:repeat(auto-fit,minmax(258px,1fr));gap:1.4rem;align-items:stretch}
.price-card{background:var(--carte);border:1px solid var(--bord);border-radius:var(--radius);padding:2rem 1.7rem;display:flex;flex-direction:column;position:relative;transition:transform .35s var(--bounce),border-color .35s}
.price-card:hover{transform:translateY(-8px);border-color:var(--bord-fort)}
.price-card.featured{border-color:var(--vert);background:linear-gradient(180deg,rgba(186,225,151,.09),var(--carte))}
.badge-pop{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--vert);color:#0d0d0d;font-weight:800;font-size:.76rem;padding:.35rem 1.1rem;border-radius:50px;letter-spacing:.02em;white-space:nowrap}
.price-card h3{font-size:1.4rem;margin-bottom:.5rem;font-weight:800}
.price{font-family:var(--display);font-weight:400;color:var(--vert);line-height:1;margin-bottom:.2rem}
.price .num{font-size:2.5rem}
.price small{font-family:var(--sans);color:var(--muet);font-size:.95rem;font-weight:600}
.price-from{color:var(--muet);font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;margin-bottom:.1rem;display:block}
.price-sub{color:var(--muet);font-size:.94rem;margin-bottom:1.3rem}
.price-card ul{list-style:none;display:grid;gap:.7rem;margin-bottom:1.7rem;flex:1}
.price-card li{color:var(--texte);font-size:.96rem;display:flex;gap:.55rem;align-items:flex-start}
.price-card li svg{width:18px;height:18px;color:var(--vert);flex:none;margin-top:3px}
.price-note{text-align:center;color:var(--muet);margin-top:2rem;font-size:.95rem}

/* ---- Réalisation ---- */
.real{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center}
.browser{width:100%;max-width:480px;background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 40px 90px rgba(0,0,0,.55);border:1px solid var(--bord);transition:transform .4s var(--bounce)}
.real:hover .browser{transform:translateY(-6px) rotate(-1deg)}
.browser-bar{background:#e9ece4;display:flex;align-items:center;gap:6px;padding:11px 15px;position:relative}
.browser-bar span{width:11px;height:11px;border-radius:50%;background:#c3c8bb}
.browser-bar em{position:absolute;left:50%;transform:translateX(-50%);background:#fff;color:#5c6555;font-style:normal;font-size:.78rem;padding:3px 14px;border-radius:20px}
.browser-body{background:linear-gradient(160deg,#33402c,#1f2a1a);padding:2.6rem 1.5rem;text-align:center}
.browser-body img{width:150px;height:auto;margin:0 auto .6rem}
.browser-body p{color:rgba(255,255,255,.85);font-size:.9rem}
.real-text h3{font-size:2rem;margin-bottom:.2rem;font-weight:800}
.real-text .proof-cat{margin-bottom:1rem}
.real-text p{color:var(--muet);margin-bottom:1.4rem}

/* ---- Pourquoi ---- */
.why-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem;margin-top:2rem}
.why-item{background:var(--carte);border:1px solid var(--bord);border-radius:var(--radius);padding:1.7rem;transition:transform .35s var(--bounce),border-color .35s}
.why-item:hover{transform:translateY(-5px);border-color:var(--bord-fort)}
.why-item .ico{width:48px;height:48px;margin-bottom:1rem}
.why-item .ico svg{width:24px;height:24px}
.why-item h3{font-size:1.2rem;margin-bottom:.4rem;font-weight:800}
.why-item p{color:var(--muet);font-size:.97rem}

/* ---- Contact ---- */
.section-contact{background:radial-gradient(800px 400px at 15% 0%,rgba(186,225,151,.10),transparent 60%),var(--noir-2)}
.contact-in{display:grid;grid-template-columns:1fr 1.1fr;gap:3.5rem;align-items:start}
.contact-list{list-style:none;display:grid;gap:.9rem;margin-top:1.8rem;font-size:1.05rem}
.contact-list li{display:flex;align-items:center;gap:.7rem}
.contact-list svg{width:20px;height:20px;color:var(--vert);flex:none}
.contact-list a{color:var(--texte)}
.contact-list a:hover{color:var(--vert)}
.form{background:var(--carte);border:1px solid var(--bord);border-radius:var(--radius-lg);padding:2.2rem}
.row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.fg{margin-bottom:1.1rem}
.fg label{display:block;font-weight:700;font-size:.9rem;margin-bottom:.4rem}
.fg input,.fg select,.fg textarea{width:100%;padding:.9rem 1rem;border:1.5px solid var(--bord);border-radius:13px;background:var(--noir);color:var(--texte);font-family:var(--sans);font-size:1rem;transition:border .18s,box-shadow .18s}
.fg input:focus,.fg select:focus,.fg textarea:focus{outline:none;border-color:var(--vert);box-shadow:0 0 0 3px rgba(186,225,151,.16)}
.fg textarea{resize:vertical}
.form-note{text-align:center;font-weight:600;margin-top:1rem;min-height:1.2rem}
.form-note.ok{color:var(--vert)}
.form-note.err{color:#ff8a7a}

/* ---- Pied ---- */
.ftr{background:var(--noir-2);border-top:1px solid var(--bord);padding-top:3.5rem}
.ftr-in{display:flex;flex-wrap:wrap;gap:1.8rem;justify-content:space-between;align-items:center;padding-bottom:2.4rem}
.ftr-desc{color:var(--muet);margin-top:.7rem;max-width:340px;font-size:.96rem}
.ftr-nav{display:flex;flex-wrap:wrap;gap:1.4rem}
.ftr-nav a{color:var(--muet);font-weight:600;font-size:.95rem;transition:color .2s}
.ftr-nav a:hover{color:var(--vert)}
.ftr-bottom{border-top:1px solid var(--bord);padding:1.3rem 0;text-align:center;color:var(--muet);font-size:.88rem}

/* ---- FAB ---- */
.fab{position:fixed;right:18px;bottom:18px;z-index:90;display:none;background:var(--vert);color:#0d0d0d;font-weight:800;padding:.9rem 1.4rem;border-radius:50px;box-shadow:0 12px 30px rgba(186,225,151,.4);transition:transform .25s var(--bounce)}
.fab:hover{transform:translateY(-3px) scale(1.04);color:#0d0d0d}

/* ---- Responsive ---- */
@media(max-width:900px){
  .proof,.real,.contact-in{grid-template-columns:1fr}
  .real .browser{order:-1}
  .why-grid{grid-template-columns:1fr}
}
@media(max-width:720px){
  .burger{display:flex}
  .nav{position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--noir);border-bottom:1px solid var(--bord);padding:.5rem 24px 1.2rem;display:none}
  .nav.open{display:flex}
  .nav a{padding:.9rem 0;border-bottom:1px solid var(--bord)}
  .nav-cta{text-align:center;margin-top:.7rem}
  .row{grid-template-columns:1fr}
  .fab{display:inline-block}
  .section{padding:4rem 0}
  .hero{padding:4rem 0 3.5rem}
}