:root{
  /* Palette (approchée depuis le logo) */
  --navy-900:#04153f;
  --navy-800:#0a2459;
  --navy-700:#1b3155;
  --blue-600:#2386cc;
  --blue-500:#429ede;
  --blue-200:#e6m; /* placeholder safety */
  --bg:#f7f9fc;
  --card:#ffffff;
  --text:#0b1630;
  --muted:#526078;
  --line:rgba(4,21,63,.12);

  --radius:18px;
  --shadow:0 10px 30px rgba(4,21,63,.10);
  --shadow2:0 6px 18px rgba(4,21,63,.08);

  --container:1120px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
  color:var(--text);
  background:linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
}

img{ max-width:100%; height:auto; display:block; }
a{ color:inherit; text-decoration:none; }
a:focus, button:focus, input:focus, textarea:focus{
  outline:3px solid rgba(66,158,222,.35);
  outline-offset:2px;
}

.container{
  width:min(var(--container), calc(100% - 2rem));
  margin-inline:auto;
}

.sr-only{
  position:absolute; width:1px; height:1px; padding:0; margin:-1px;
  overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0;
}

.skip-link{
  position:absolute; left:-999px; top:1rem;
  background:#fff; border:1px solid var(--line);
  padding:.6rem .9rem; border-radius:999px;
  box-shadow:var(--shadow2);
}
.skip-link:focus{ left:1rem; z-index:9999; }

.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(255,255,255,.86);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--line);
}

.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding:.7rem 0;
  gap:1rem;
}

.brand{ display:flex; align-items:center; gap:.75rem; }
.brand-logo{ width:240px; max-width:55vw; }

.nav{
  display:flex; align-items:center; gap:.35rem;
}
.nav-link{
  padding:.55rem .75rem;
  border-radius:999px;
  color:var(--navy-700);
}
.nav-link:hover{
  background:rgba(35,134,204,.08);
}
.nav-cta{
  background:linear-gradient(135deg, var(--navy-900), var(--blue-600));
  color:#fff;
}
.nav-cta:hover{ filter:brightness(1.03); }

.nav-toggle{
  display:none;
  background:transparent; border:1px solid var(--line);
  border-radius:12px; padding:.55rem .65rem;
}
.nav-toggle-bars{
  display:block; width:18px; height:12px; position:relative;
}
.nav-toggle-bars::before, .nav-toggle-bars::after, .nav-toggle-bars{
  background:var(--navy-700);
}
.nav-toggle-bars{ height:2px; top:5px; }
.nav-toggle-bars::before{
  content:""; position:absolute; left:0; right:0; height:2px; top:-5px;
}
.nav-toggle-bars::after{
  content:""; position:absolute; left:0; right:0; height:2px; top:5px;
}

.hero{
  padding:3.2rem 0 2.2rem;
}
.hero-compact{ padding:2.4rem 0 1.6rem; }

.hero-grid{
  display:grid;
  grid-template-columns: 1.4fr .9fr;
  gap:1.5rem;
  align-items:start;
}

.kicker{
  display:inline-block;
  color:var(--blue-600);
  font-weight:700;
  letter-spacing:.02em;
  text-transform:uppercase;
  font-size:.85rem;
  margin:0 0 .6rem;
}

h1{
  margin:.25rem 0 .75rem;
  font-size:clamp(1.9rem, 3.2vw, 3.0rem);
  line-height:1.12;
  color:var(--navy-900);
}
.grad{
  background:linear-gradient(90deg, var(--navy-900), var(--blue-600));
  -webkit-background-clip:text; background-clip:text;
  color:transparent;
}

.lead{
  margin:0 0 1.1rem;
  font-size:1.07rem;
  line-height:1.6;
  color:var(--muted);
}

.hero-actions{
  display:flex; gap:.7rem; flex-wrap:wrap;
  margin:1.1rem 0 1rem;
}

.button{
  display:inline-flex; align-items:center; justify-content:center;
  gap:.5rem;
  padding:.75rem 1rem;
  border-radius:999px;
  border:1px solid transparent;
  background:linear-gradient(135deg, var(--navy-900), var(--blue-600));
  color:#fff;
  box-shadow:var(--shadow2);
  font-weight:700;
}
.button:hover{ filter:brightness(1.03); }
.button:active{ transform:translateY(1px); }

.button-ghost{
  background:#fff;
  color:var(--navy-900);
  border:1px solid var(--line);
  box-shadow:none;
}
.button-ghost:hover{ background:rgba(35,134,204,.06); }

.trust{
  list-style:none; padding:0; margin:1.0rem 0 0;
  display:flex; flex-wrap:wrap; gap:.75rem 1rem;
  color:var(--muted);
}
.trust strong{ color:var(--navy-900); }

.hero-card{
  border:1px solid var(--line);
  background:linear-gradient(180deg, #fff 0%, rgba(66,158,222,.06) 100%);
  border-radius:var(--radius);
  padding:1.1rem;
  box-shadow:var(--shadow2);
}
.h3{ font-size:1.25rem; margin:.2rem 0 .7rem; color:var(--navy-900); }
.h4{ font-size:1.05rem; margin:.2rem 0 .5rem; color:var(--navy-900); }

.metric{
  padding:.8rem .85rem;
  border-radius:14px;
  border:1px solid var(--line);
  background:#fff;
  margin:.6rem 0;
}
.metric-label{
  display:block;
  font-weight:800;
  color:var(--blue-600);
  font-size:.95rem;
}
.metric-value{
  display:block;
  color:var(--navy-900);
  margin-top:.15rem;
  font-weight:650;
}

.section{ padding:2.4rem 0; }
.section-alt{ background:rgba(4,21,63,.03); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }

.section-head{ margin-bottom:1.2rem; }
.section-head h2{
  margin:0 0 .45rem;
  font-size:1.65rem;
  color:var(--navy-900);
}
.muted{ color:var(--muted); }
.small{ font-size:.92rem; }

.grid-2{ display:grid; grid-template-columns:1fr 1fr; gap:1rem; }
.grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:1rem; }
.grid-4{ display:grid; grid-template-columns:repeat(4,1fr); gap:1rem; }

.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:1.05rem;
  box-shadow:var(--shadow2);
}
.mini-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:16px;
  padding:1rem;
}

.checklist, .bullets{
  margin:.7rem 0 0;
  padding-left:1.1rem;
  color:var(--muted);
  line-height:1.55;
}
.checklist li{ margin:.35rem 0; }
.bullets li{ margin:.35rem 0; }

.callout{
  margin-top:1rem;
  padding:1rem 1.1rem;
  border-radius:var(--radius);
  border:1px solid rgba(66,158,222,.25);
  background:linear-gradient(90deg, rgba(35,134,204,.10), rgba(66,158,222,.06));
}

.cta-band{
  margin-top:1.2rem;
  padding:1.1rem;
  border-radius:var(--radius);
  border:1px solid rgba(35,134,204,.18);
  background:linear-gradient(135deg, rgba(4,21,63,.06), rgba(35,134,204,.08));
  display:flex; align-items:center; justify-content:space-between; gap:1rem;
  box-shadow:var(--shadow2);
}

.form .field{ margin:.7rem 0; }
label{ display:block; font-weight:700; color:var(--navy-900); margin-bottom:.35rem; }
input, textarea{
  width:100%;
  border-radius:14px;
  border:1px solid var(--line);
  padding:.7rem .85rem;
  font:inherit;
  background:#fff;
}
.field-hint{ margin:.35rem 0 0; font-size:.9rem; color:rgba(82,96,120,.9); }

.sep{ border:none; border-top:1px solid var(--line); margin:1rem 0; }
.steps{ margin:.5rem 0 0; color:var(--muted); line-height:1.6; padding-left:1.2rem; }

.site-footer{
  border-top:1px solid var(--line);
  background:#fff;
  padding:1.2rem 0;
}
.footer-inner{
  display:flex; justify-content:space-between; align-items:center; gap:1rem;
}

/* Cas d'usage */
.filters{ display:flex; gap:.5rem; flex-wrap:wrap; margin-top:1rem; }
.chip{
  border:1px solid var(--line);
  background:#fff;
  border-radius:999px;
  padding:.55rem .8rem;
  font-weight:700;
  color:var(--navy-700);
}
.chip:hover{ background:rgba(35,134,204,.06); }
.chip.is-active{
  background:linear-gradient(135deg, var(--navy-900), var(--blue-600));
  color:#fff;
  border-color:transparent;
}

.cases-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:1rem;
}
.case-card{
  cursor:pointer;
  transition: transform .12s ease, box-shadow .12s ease;
}
.case-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow);
}
.badges{ display:flex; gap:.4rem; flex-wrap:wrap; margin-top:.6rem; }
.badge{
  font-size:.82rem;
  padding:.28rem .55rem;
  border-radius:999px;
  border:1px solid rgba(35,134,204,.20);
  background:rgba(35,134,204,.06);
  color:var(--navy-800);
  font-weight:700;
}

/* Modal */
.modal{
  border:none;
  width:min(860px, calc(100% - 1.2rem));
  border-radius:22px;
  padding:0;
  box-shadow:var(--shadow);
}
.modal::backdrop{
  background:rgba(4,21,63,.55);
}
.modal-head{
  display:flex; align-items:center; justify-content:space-between;
  padding:1rem 1.1rem;
  border-bottom:1px solid var(--line);
  background:#fff;
}
.modal-body{ padding:1rem 1.1rem 1.1rem; background:var(--bg); }
.modal-actions{ display:flex; justify-content:flex-end; gap:.6rem; margin-top:1rem; }
.icon-btn{
  border:1px solid var(--line);
  background:#fff;
  border-radius:12px;
  padding:.4rem .6rem;
  font-weight:900;
}

/* Responsive */
@media (max-width: 980px){
  .hero-grid{ grid-template-columns:1fr; }
  .grid-4{ grid-template-columns:1fr 1fr; }
  .grid-3{ grid-template-columns:1fr; }
  .grid-2{ grid-template-columns:1fr; }
  .cta-band{ flex-direction:column; align-items:flex-start; }
  .cases-grid{ grid-template-columns:1fr; }
  .nav-toggle{ display:inline-flex; }
  .nav{
    position:absolute;
    right:1rem;
    top:72px;
    flex-direction:column;
    align-items:stretch;
    background:#fff;
    border:1px solid var(--line);
    border-radius:18px;
    padding:.5rem;
    box-shadow:var(--shadow);
    min-width: 240px;
    display:none;
  }
  .nav.is-open{ display:flex; }
  .nav-link{ padding:.7rem .85rem; }
}