:root{
  --color-bg:#f6f7fb;
  --color-surface:#ffffff;
  --color-surface-alt:#f4f6fa;
  --color-border:#e4e8f0;
  --color-text:#101828;
  --color-text-muted:#5b6472;
  --color-ink:#0d1424;
  --color-ink-soft:#17213a;

  --color-primary:#4338ca;
  --color-primary-hover:#362ea6;
  --color-primary-soft:#eef0fd;
  --color-accent:#0d9488;
  --color-accent-soft:#e6f7f5;
  --color-success:#059669;

  --font-sans:"Inter",-apple-system,"Segoe UI",system-ui,Roboto,Arial,sans-serif;

  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:22px;
  --content-max:1180px;

  --shadow-sm:0 1px 2px rgba(16,24,40,.05),0 1px 1px rgba(16,24,40,.04);
  --shadow-md:0 8px 24px rgba(16,24,40,.08);
  --shadow-lg:0 24px 60px rgba(16,24,40,.18);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);
  line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-weight:700;letter-spacing:-.02em;margin:0 0 .5em;color:var(--color-text)}
p{margin:0 0 1em}
a{color:inherit}
img,svg{max-width:100%;display:block}
.wrap{max-width:var(--content-max);margin:0 auto;padding:0 24px}
section{padding:96px 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--color-primary);text-transform:uppercase;letter-spacing:.08em;margin-bottom:14px}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--color-primary);border-radius:2px}
.section-head{max-width:640px;margin:0 0 48px}
.section-head p{color:var(--color-text-muted);font-size:17px}
.center{text-align:center;margin-left:auto;margin-right:auto}

/* Boutons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--radius-sm);font-weight:600;font-size:15px;
  text-decoration:none;border:1px solid transparent;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,background .15s ease;
}
.btn-primary{background:var(--color-primary);color:#fff;box-shadow:0 8px 20px rgba(67,56,202,.32)}
.btn-primary:hover{background:var(--color-primary-hover);transform:translateY(-1px);box-shadow:0 12px 28px rgba(67,56,202,.4)}
.btn-ghost{background:#fff;border-color:var(--color-border);color:var(--color-text)}
.btn-ghost:hover{background:var(--color-surface-alt)}
.btn-invert{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.25);color:#fff}
.btn-invert:hover{background:rgba(255,255,255,.18)}
.btn-lg{padding:16px 30px;font-size:16px}

/* Header */
header.site-header{
  position:sticky;top:0;z-index:50;background:rgba(246,247,251,.85);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--color-border);
}
.nav-row{display:flex;align-items:center;justify-content:space-between;padding:16px 24px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:700;font-size:17px;color:var(--color-text)}
.brand-mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--color-primary),#7c6ef0);display:flex;align-items:center;justify-content:center;box-shadow:0 4px 10px rgba(67,56,202,.35)}
.brand-mark svg{width:18px;height:18px}
nav.site-nav{display:flex;align-items:center;gap:32px}
nav.site-nav a{text-decoration:none;font-size:14.5px;font-weight:600;color:var(--color-text-muted)}
nav.site-nav a:hover{color:var(--color-text)}
.nav-cta{display:flex;align-items:center;gap:10px}
.nav-toggle{display:none;background:none;border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:8px;cursor:pointer}
.nav-toggle svg{width:20px;height:20px}

/* Hero */
.hero{padding:88px 0 40px;position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:-20% -10% auto -10%;height:600px;z-index:-1;
  background:radial-gradient(60% 60% at 30% 20%,rgba(67,56,202,.14),transparent 70%),
             radial-gradient(50% 50% at 80% 10%,rgba(13,148,136,.12),transparent 70%);
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(34px,4.4vw,54px);line-height:1.08}
.hero h1 .accent{color:var(--color-primary)}
.hero .lede{font-size:19px;color:var(--color-text-muted);max-width:520px}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}
.hero-trust{display:flex;gap:22px;flex-wrap:wrap;margin-top:40px}
.hero-trust .item{display:flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;color:var(--color-text-muted)}
.hero-trust svg{width:16px;height:16px;color:var(--color-accent);flex:none}

/* Mockup produit (illustratif, pas une capture reelle) */
.product-mock{
  background:var(--color-ink);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);
  padding:14px;position:relative;
}
.product-mock .mock-topbar{display:flex;gap:6px;padding:4px 6px 14px}
.product-mock .mock-topbar span{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.18)}
.mock-body{background:var(--color-surface);border-radius:12px;overflow:hidden;display:flex;min-height:360px}
.mock-side{width:64px;background:var(--color-ink-soft);flex:none;padding:14px 0;display:flex;flex-direction:column;align-items:center;gap:16px}
.mock-side .dot{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--color-primary),#7c6ef0)}
.mock-side .bar{width:22px;height:8px;border-radius:4px;background:rgba(255,255,255,.14)}
.mock-main{flex:1;padding:18px 20px;min-width:0}
.mock-badge{display:inline-flex;align-items:center;gap:6px;background:var(--color-accent-soft);color:var(--color-accent);font-size:11px;font-weight:700;padding:3px 10px;border-radius:999px;margin-bottom:12px}
.mock-line{display:flex;gap:12px;padding:10px 0;border-bottom:1px solid var(--color-border)}
.mock-line:last-child{border-bottom:none}
.mock-time{width:54px;flex:none;font-size:11px;color:var(--color-text-muted);font-variant-numeric:tabular-nums}
.mock-speaker{width:88px;flex:none;font-size:12px;font-weight:700;color:var(--color-primary)}
.mock-text{flex:1;min-width:0}
.mock-text .full{height:8px;border-radius:4px;background:#dfe3ec;margin-bottom:6px}
.mock-text .full:last-child{margin-bottom:0}
.mock-text .w-90{width:90%}.mock-text .w-70{width:70%}.mock-text .w-60{width:60%}.mock-text .w-40{width:40%}
.mock-highlight .mock-text .full{background:var(--color-primary-soft)}

/* Bande de confiance */
.trustbar{padding:34px 0;border-top:1px solid var(--color-border);border-bottom:1px solid var(--color-border);background:var(--color-surface)}
.trustbar .wrap{display:flex;flex-wrap:wrap;gap:28px;justify-content:space-between;align-items:center}
.trustbar .item{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:600;color:var(--color-text-muted)}
.trustbar svg{width:20px;height:20px;color:var(--color-primary);flex:none}

/* Grilles */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}

.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:28px;box-shadow:var(--shadow-sm)}
.feature-card .icon{
  width:44px;height:44px;border-radius:12px;background:var(--color-primary-soft);color:var(--color-primary);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.feature-card .icon svg{width:22px;height:22px}
.feature-card h3{font-size:17px}
.feature-card p{color:var(--color-text-muted);font-size:14.5px;margin:0}

/* Comment ca marche */
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:8px}
.step{position:relative;padding-top:8px}
.step .num{
  width:40px;height:40px;border-radius:50%;background:var(--color-ink);color:#fff;font-weight:700;
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;font-size:15px;
}
.step h3{font-size:16.5px}
.step p{color:var(--color-text-muted);font-size:14.5px;margin:0}
.steps-rail{display:none}

/* Cas d'usage */
.usecase-card{display:flex;flex-direction:column;gap:10px}
.usecase-card .icon{width:38px;height:38px;border-radius:10px;background:var(--color-accent-soft);color:var(--color-accent);display:flex;align-items:center;justify-content:center}
.usecase-card .icon svg{width:19px;height:19px}
.usecase-card h3{font-size:16px;margin-bottom:2px}
.usecase-card p{color:var(--color-text-muted);font-size:14px;margin:0}

/* Benefices */
.benefits-section{background:var(--color-ink);color:#fff;border-radius:var(--radius-lg);margin:0 24px;padding:72px 48px}
.benefits-section .wrap{max-width:var(--content-max);margin:0 auto;padding:0}
.benefits-section .eyebrow{color:#a9b2ff}
.benefits-section h2{color:#fff}
.benefits-section .section-head p{color:#aab2cc}
.benefit-row{display:grid;grid-template-columns:repeat(2,1fr);gap:20px 32px;margin-top:16px}
.benefit-item{display:flex;gap:14px}
.benefit-item .icon{width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;flex:none;color:#8b7ffb}
.benefit-item .icon svg{width:18px;height:18px}
.benefit-item h4{color:#fff;font-size:15.5px;margin:0 0 4px}
.benefit-item p{color:#aab2cc;font-size:14px;margin:0}

/* Securite */
.security-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.security-list{display:flex;flex-direction:column;gap:20px;margin-top:8px}
.security-list .row{display:flex;gap:14px;align-items:flex-start}
.security-list .icon{width:34px;height:34px;border-radius:10px;background:var(--color-success);opacity:.12;position:absolute}
.security-item{display:flex;gap:14px}
.security-item .badge{
  width:34px;height:34px;border-radius:10px;background:#e9f9f2;color:var(--color-success);
  display:flex;align-items:center;justify-content:center;flex:none;
}
.security-item .badge svg{width:17px;height:17px}
.security-item h4{margin:0 0 3px;font-size:15px}
.security-item p{margin:0;color:var(--color-text-muted);font-size:14px}
.security-visual{
  background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);
  padding:36px;box-shadow:var(--shadow-md);text-align:center;
}
.security-visual .badge-lg{
  width:76px;height:76px;border-radius:22px;background:var(--color-accent-soft);color:var(--color-accent);
  display:flex;align-items:center;justify-content:center;margin:0 auto 20px;
}
.security-visual .badge-lg svg{width:38px;height:38px}
.security-visual h3{font-size:20px}
.security-visual p{color:var(--color-text-muted);font-size:14.5px}

/* FAQ */
.faq-list{max-width:760px;margin:0 auto}
.faq-item{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);margin-bottom:12px;overflow:hidden}
.faq-item summary{
  padding:20px 24px;cursor:pointer;font-weight:650;font-size:15.5px;list-style:none;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:22px;color:var(--color-text-muted);flex:none;transition:transform .2s ease}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-answer{padding:0 24px 22px;color:var(--color-text-muted);font-size:14.5px;max-width:640px}

/* CTA finale */
.final-cta{
  background:linear-gradient(135deg,var(--color-primary) 0%,#5b4fe0 100%);border-radius:var(--radius-lg);
  margin:0 24px;padding:64px 48px;text-align:center;color:#fff;
}
.final-cta h2{color:#fff;font-size:32px}
.final-cta p{color:#dcdaff;max-width:520px;margin:0 auto 28px;font-size:16px}
.final-cta .ctas{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* Contact */
.contact-form{max-width:560px;margin:0 auto;display:flex;flex-direction:column;gap:18px}
.form-row{display:flex;flex-direction:column;gap:6px}
.form-row label{font-size:13.5px;font-weight:600;color:var(--color-text)}
.form-row input,.form-row textarea{
  font:inherit;padding:12px 14px;border-radius:var(--radius-sm);border:1px solid var(--color-border);
  background:#fff;color:var(--color-text);resize:vertical;
}
.form-row input:focus,.form-row textarea:focus{outline:2px solid var(--color-primary);outline-offset:1px}
.contact-form .btn{align-self:flex-start}
.form-honeypot{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.contact-status{max-width:560px;margin:0 auto 24px;padding:14px 18px;border-radius:var(--radius-sm);font-size:14.5px;font-weight:600;display:none}
.contact-status.show{display:block}
.contact-status.ok{background:var(--color-accent-soft);color:var(--color-accent);border:1px solid rgba(13,148,136,.25)}
.contact-status.erreur{background:#fdecec;color:#c0392b;border:1px solid rgba(192,57,43,.25)}

/* Footer */
footer.site-footer{padding:56px 0 32px;color:var(--color-text-muted);font-size:14px}
.footer-top{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap;margin-bottom:32px}
.footer-brand{max-width:320px}
.footer-brand .brand{margin-bottom:10px}
.footer-links{display:flex;gap:56px;flex-wrap:wrap}
.footer-links h5{font-size:12.5px;text-transform:uppercase;letter-spacing:.06em;color:var(--color-text);margin:0 0 12px}
.footer-links ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:9px}
.footer-links a{text-decoration:none;color:var(--color-text-muted)}
.footer-links a:hover{color:var(--color-text)}
.footer-bottom{border-top:1px solid var(--color-border);padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}

@media(max-width:980px){
  .hero-grid{grid-template-columns:1fr}
  .hero .product-mock{order:-1}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .benefit-row{grid-template-columns:1fr}
  .security-grid{grid-template-columns:1fr}
  .benefits-section{padding:56px 28px}
}
@media(max-width:760px){
  nav.site-nav{position:fixed;inset:64px 16px auto 16px;background:#fff;border:1px solid var(--color-border);
    border-radius:var(--radius-md);box-shadow:var(--shadow-lg);flex-direction:column;align-items:flex-start;
    padding:16px 20px;gap:14px;display:none}
  nav.site-nav.open{display:flex}
  .nav-toggle{display:flex}
  .nav-cta .btn-ghost{display:none}
  section{padding:64px 0}
  .grid-3,.grid-4,.grid-2{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .trustbar .wrap{justify-content:flex-start}
  .final-cta,.benefits-section{margin:0 16px;padding:44px 24px}
  .footer-top{flex-direction:column}
}