/* Kumo — charte graphique (alignée sur l'app iOS Theme.swift) */
:root{
  --sky-top:#A3D1F5;
  --sky-mid:#DBEDFC;
  --sky-bottom:#F7FCFF;
  --blue:#61A3E6;
  --blue-1:#94CCF5;
  --blue-2:#66A3E6;
  --mint:#6BC7B8;
  --mint-1:#9EDECC;
  --mint-2:#6BC7B8;
  --ink:#2E4A63;
  --ink-soft:#5A7690;
  --card:#FFFFFF;
  --radius:26px;
  --radius-sm:16px;
  --shadow:0 18px 50px -18px rgba(46,74,99,.28);
  --shadow-soft:0 8px 30px -10px rgba(46,74,99,.18);
  --maxw:1140px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Nunito",ui-rounded,"SF Pro Rounded","Segoe UI",system-ui,-apple-system,sans-serif;
  color:var(--ink);
  background:linear-gradient(180deg,var(--sky-top) 0%,var(--sky-mid) 26%,var(--sky-bottom) 60%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  line-height:1.6;
}
h1,h2,h3{line-height:1.15;font-weight:800;letter-spacing:-.02em;margin:0}
p{margin:0}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.section{padding:84px 0}
.eyebrow{font-weight:800;color:var(--blue);text-transform:uppercase;letter-spacing:.08em;font-size:.8rem}

/* Boutons */
.btn{display:inline-flex;align-items:center;gap:.55em;padding:15px 26px;border-radius:999px;
  font-weight:800;font-size:1.02rem;border:0;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease}
.btn:hover{transform:translateY(-2px)}
.btn svg{width:22px;height:22px;flex:0 0 auto}
.btn-blue{background:linear-gradient(180deg,var(--blue-1),var(--blue-2));color:#fff;box-shadow:0 12px 26px -8px rgba(102,163,230,.7)}
.btn-mint{background:linear-gradient(180deg,var(--mint-1),var(--mint-2));color:#fff;box-shadow:0 12px 26px -8px rgba(107,199,184,.7)}
.btn-ghost{background:rgba(255,255,255,.7);color:var(--ink);box-shadow:var(--shadow-soft)}

/* Header */
.hdr{position:sticky;top:0;z-index:50;backdrop-filter:saturate(1.4) blur(10px);
  background:linear-gradient(180deg,rgba(247,252,255,.85),rgba(247,252,255,.55));border-bottom:1px solid rgba(97,163,230,.12)}
.hdr .wrap{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.25rem}
.brand img{width:34px;height:34px}
.nav{display:flex;align-items:center;gap:26px;font-weight:700}
.nav a.link{color:var(--ink-soft)}
.nav a.link:hover{color:var(--blue)}
.langsel{position:relative}
.langsel select{font:inherit;font-weight:700;color:var(--ink);background:rgba(255,255,255,.7);
  border:1px solid rgba(97,163,230,.25);border-radius:999px;padding:8px 14px;cursor:pointer}
.menu-toggle{display:none}

/* Hero */
.hero{padding:64px 0 40px;position:relative;overflow:hidden}
.hero .grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.75);
  border:1px solid rgba(97,163,230,.25);padding:7px 15px;border-radius:999px;font-weight:800;font-size:.85rem;color:var(--blue)}
.hero h1{font-size:clamp(2.1rem,4.6vw,3.5rem);margin:18px 0 16px}
.hero .lead{font-size:1.16rem;color:var(--ink-soft);max-width:36ch}
.hero .cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;align-items:center}
.hero .note{font-size:.92rem;color:var(--ink-soft);margin-top:14px}
.trust{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.trust span{background:rgba(255,255,255,.7);border:1px solid rgba(97,163,230,.18);border-radius:999px;
  padding:7px 14px;font-weight:700;font-size:.85rem;color:var(--ink)}

/* Phone mockup */
.phone{justify-self:center;position:relative;width:min(300px,80vw)}
.phone .frame{border-radius:44px;padding:12px;background:#fff;box-shadow:var(--shadow);border:1px solid rgba(97,163,230,.15)}
.phone .frame img{border-radius:34px;width:100%}
.cloud-deco{position:absolute;filter:drop-shadow(0 10px 18px rgba(46,74,99,.15));opacity:.9;pointer-events:none}
.cloud-deco.c1{width:110px;top:-26px;right:-24px}
.cloud-deco.c2{width:74px;bottom:40px;left:-30px}

/* Features */
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:40px}
.card{background:var(--card);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-soft);
  border:1px solid rgba(97,163,230,.1)}
.card .ic{width:56px;height:56px;border-radius:18px;display:grid;place-items:center;margin-bottom:16px;
  background:linear-gradient(180deg,var(--sky-mid),#fff)}
.card .ic svg{width:30px;height:30px}
.card h3{font-size:1.24rem;margin-bottom:8px}
.card p{color:var(--ink-soft)}
.section-head{text-align:center;max-width:640px;margin:0 auto}
.section-head p{color:var(--ink-soft);margin-top:12px;font-size:1.08rem}

/* How it works */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:44px}
.step{background:rgba(255,255,255,.6);border-radius:var(--radius);padding:28px;text-align:center;border:1px solid rgba(97,163,230,.12)}
.step .num{width:46px;height:46px;margin:0 auto 14px;border-radius:50%;display:grid;place-items:center;
  font-weight:800;color:#fff;font-size:1.2rem;background:linear-gradient(180deg,var(--blue-1),var(--blue-2))}
.step h3{font-size:1.12rem;margin-bottom:6px}
.step p{color:var(--ink-soft)}

/* Privacy band */
.privacy{background:linear-gradient(180deg,#fff, #F2F9FF);border-radius:36px;padding:56px;
  box-shadow:var(--shadow-soft);border:1px solid rgba(97,163,230,.12)}
.privacy .grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.privacy h2{font-size:clamp(1.7rem,3vw,2.3rem);margin-bottom:16px}
.privacy .lead{color:var(--ink-soft);font-size:1.1rem}
.plist{list-style:none;padding:0;margin:0;display:grid;gap:14px}
.plist li{display:flex;gap:12px;align-items:flex-start;font-weight:600}
.plist .chk{flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:linear-gradient(180deg,var(--mint-1),var(--mint-2));
  display:grid;place-items:center;color:#fff}

/* FAQ */
.faq{max-width:760px;margin:40px auto 0;display:grid;gap:14px}
.qa{background:var(--card);border-radius:var(--radius-sm);border:1px solid rgba(97,163,230,.12);box-shadow:var(--shadow-soft);overflow:hidden}
.qa summary{list-style:none;cursor:pointer;padding:20px 24px;font-weight:800;color:var(--ink);display:flex;justify-content:space-between;align-items:center;gap:14px}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"+";font-size:1.5rem;color:var(--blue);font-weight:700;transition:transform .2s ease}
.qa[open] summary::after{transform:rotate(45deg)}
.qa-a{padding:0 24px 22px;color:var(--ink-soft)}

/* CTA */
.ctaband{text-align:center;background:linear-gradient(180deg,var(--blue-1),var(--blue-2));color:#fff;
  border-radius:36px;padding:60px 30px;box-shadow:var(--shadow)}
.ctaband h2{font-size:clamp(1.8rem,3.4vw,2.6rem)}
.ctaband p{margin:14px auto 26px;max-width:44ch;opacity:.95;font-size:1.12rem}
.ctaband .btn-ghost{background:#fff}

/* Footer */
.ftr{padding:50px 0 40px;color:var(--ink-soft)}
.ftr .grid{display:flex;justify-content:space-between;flex-wrap:wrap;gap:24px;align-items:center}
.ftr .brand{color:var(--ink)}
.ftr .links{display:flex;gap:22px;font-weight:700;flex-wrap:wrap}
.ftr .links a:hover{color:var(--blue)}
.ftr .copy{width:100%;font-size:.85rem;opacity:.8;padding-top:22px;border-top:1px solid rgba(97,163,230,.14)}

/* Responsive */
@media(max-width:900px){
  .hero .grid{grid-template-columns:1fr;text-align:center}
  .hero .lead{margin:0 auto}
  .hero .cta-row,.trust{justify-content:center}
  .cards{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .privacy .grid{grid-template-columns:1fr}
  .privacy{padding:36px}
  .nav .link{display:none}
}
@media(max-width:520px){
  .section{padding:60px 0}
  .hdr .wrap{height:60px}
}