:root{
  --bg:#0b0f14;
  --card:#0f1520;
  --text:#e8f0ff;
  --muted:#9fb3c8;
  --brand:#4ca3ff;
  --brand-2:#7cf;
  --ring:0 0 0 3px rgba(76,163,255,.35);
  --radius:18px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:Inter,system-ui,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  background:radial-gradient(1200px 800px at 80% -10%,rgba(76,163,255,.12),transparent),
             radial-gradient(800px 600px at 20% 110%,rgba(127,204,255,.10),transparent),
             var(--bg);
  color:var(--text);
  line-height:1.55;
}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}

/* Layout */
.container{width:min(1100px,92vw);margin-inline:auto}
section{padding:30px 0}
section h2{font-size:clamp(22px,3vw,32px);margin:0 0 6px}
section p.lead{color:#cfe0f5;margin:0 0 18px}
.grid{display:grid;gap:18px}
@media(min-width:800px){
  .grid.cols-3{grid-template-columns:repeat(3,1fr)}
  .grid.cols-2{grid-template-columns:repeat(2,1fr)}
}

/* Header / Nav */
header{position:sticky;top:0;backdrop-filter:saturate(160%) blur(8px);
  background:linear-gradient(180deg,rgba(11,15,20,.7),rgba(11,15,20,.3));
  border-bottom:1px solid rgba(255,255,255,.06);z-index:40}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand{display:flex;gap:10px;align-items:center;font-weight:700;letter-spacing:.3px}
.logo{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand-2));display:grid;place-items:center;box-shadow:var(--shadow)}
.logo svg{fill:white}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:10px;border:1px solid rgba(255,255,255,.12);
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  padding:12px 16px;border-radius:14px;color:var(--text);font-weight:600;cursor:pointer}
.btn.primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#04121f;border:none}
.btn:hover{transform:translateY(-1px);box-shadow:var(--shadow)}
.btn-lg{padding:14px 18px;font-size:1.02rem;border-radius:14px}

/* Cards & helpers */
.card{background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.08);border-radius:var(--radius);box-shadow:var(--shadow)}
.card .head{display:flex;gap:12px;align-items:flex-start}
.card .icon{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--brand-2));display:grid;place-items:center;flex:0 0 auto}
.p-16{padding:16px}
.p-18{padding:18px}
.mt-12{margin-top:12px}

/* Hero */
.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:center;padding:64px 0 34px}
.hero h1{font-size:clamp(28px,3.6vw,44px);line-height:1.2;margin:0 0 12px}
.kicker{display:inline-flex;gap:8px;align-items:center;color:var(--muted);font-weight:600;font-size:.95rem;margin-bottom:10px}
.hero p{color:#cfe0f5;margin:0 0 22px;font-size:clamp(15px,1.6vw,18px)}
.cta{display:flex;gap:12px;flex-wrap:wrap}
.badge{display:inline-flex;gap:8px;align-items:center;border:1px solid rgba(255,255,255,.12);padding:6px 10px;border-radius:999px;color:#cfe0f5;font-size:.9rem}
.img-frame{width:100%;border-radius:14px;border:1px solid rgba(255,255,255,.08)}

/* Lists */
.list{display:grid;gap:8px;margin:8px 0 0;padding:0}
.list li{list-style:none;color:#cfe0f5}
.muted{color:var(--muted)}

/* Footer */
footer{border-top:1px solid rgba(255,255,255,.06);padding:28px 0;color:#bcd0e4;font-size:.95rem}
.foot{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between}
.links{display:flex;gap:14px;flex-wrap:wrap}

/* Header compact used on inner pages */
.h{padding:18px 0;display:flex;justify-content:space-between;align-items:center}

/* ---------- Formulaire (ergonomie améliorée) ---------- */
.form{display:flex;flex-direction:column;gap:16px}
.form--stack .form-row{display:block} /* neutralise éventuelle grille */
.field{display:flex;flex-direction:column;gap:6px}
label{font-weight:600;color:var(--text)}
.req{color:#ffb3b3;margin-left:4px}
.help{font-size:.92rem;color:#cfe0f5;opacity:.85}

input, textarea{
  width:100%;
  background:#0b121b;
  border:1px solid rgba(255,255,255,.12);
  color:var(--text);
  padding:14px 16px;
  border-radius:12px;
  outline:none;
  transition:border-color .15s ease, box-shadow .15s ease, background .15s ease;
}
textarea{min-height:150px;resize:vertical}
input:focus, textarea:focus{box-shadow:var(--ring);border-color:transparent;background:#0b141e}

[aria-invalid="true"]{border-color:#ff5d5d !important; box-shadow:0 0 0 3px rgba(255,93,93,.25) !important}
.consent{display:flex;gap:10px;align-items:flex-start;color:#cfe0f5;font-size:.95rem}
.consent input{margin-top:4px}

.status{border-radius:12px;padding:12px 14px;display:none;margin-top:4px}
.status.ok{display:block;background:rgba(53,199,89,.12);border:1px solid rgba(53,199,89,.35)}
.status.err{display:block;background:rgba(255,93,93,.12);border:1px solid rgba(255,93,93,.35)}