:root{
  --bg:#f5f7ff;
  --bg2:#eef2ff;
  --panel:rgba(255,255,255,.75);
  --card:#ffffff;

  --text:#0b1020;
  --muted:#4b5563;

  --line:rgba(15,23,42,.10);
  --line2:rgba(15,23,42,.07);

  --accent:#38bdf8;    /* cyan soft */
  --accent2:#a78bfa;   /* violet soft */

  --shadow:0 14px 35px rgba(15,23,42,.10);
  --r:18px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Arial;
  color:var(--text);
  background:
    radial-gradient(900px 520px at 20% -10%, rgba(56,189,248,.18), transparent 55%),
    radial-gradient(900px 520px at 85% -10%, rgba(167,139,250,.18), transparent 58%),
    linear-gradient(180deg, var(--bg), var(--bg2));
}

a{color:inherit;text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1040px;margin:0 auto;padding:22px}

/* Header clair type VPN */
.top{
  position:sticky;top:0;z-index:50;
  background: rgba(245,247,255,.72);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--line2);
}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:14px}
.brand a{
  display:flex;align-items:center;gap:10px;
  font-weight:900;letter-spacing:.3px;
}
.dot{
  width:10px;height:10px;border-radius:999px;
  background: linear-gradient(135deg,var(--accent),var(--accent2));
  box-shadow:0 0 0 4px rgba(56,189,248,.10);
}
.nav a{
  margin-left:14px;
  color:rgba(11,16,32,.72);
  font-weight:800;
  font-size:14px;
}
.nav a:hover{color:var(--text);text-decoration:none}

/* Hero clair */
.hero{
  margin-top:16px;
  border:1px solid var(--line2);
  background: rgba(255,255,255,.70);
  border-radius: calc(var(--r) + 10px);
  box-shadow: var(--shadow);
  padding:28px;
}

.badge{
  display:inline-flex;align-items:center;gap:10px;
  padding:8px 12px;border-radius:999px;
  border:1px solid var(--line2);
  background: rgba(255,255,255,.85);
  color:rgba(11,16,32,.72);
  font-weight:900;font-size:12px;
}
.badge:before{
  content:"";
  width:7px;height:7px;border-radius:50%;
  background:#22c55e;
  box-shadow:0 0 0 4px rgba(34,197,94,.12);
}

h1{margin:14px 0 8px;font-size:42px;line-height:1.05}
p{margin:10px 0;color:var(--muted);line-height:1.55}
.small{font-size:13px;color:rgba(75,85,99,.95)}

/* CTA comme VPN */
.cta{
  display:inline-flex;align-items:center;justify-content:center;
  margin-top:14px;
  padding:12px 16px;border-radius:999px;
  font-weight:900;
  color:#06101a;
  background: linear-gradient(135deg, rgba(56,189,248,.95), rgba(167,139,250,.95));
  box-shadow:0 10px 26px rgba(15,23,42,.10);
}
.cta:hover{text-decoration:none;filter:brightness(1.02)}

/* Steps */
.grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:14px;
  margin-top:18px;
}
.card{
  background: rgba(255,255,255,.92);
  border:1px solid var(--line2);
  border-radius: var(--r);
  padding:16px;
  box-shadow: 0 10px 24px rgba(15,23,42,.06);
}
.card h3{margin:0 0 8px;font-size:18px}
.card p{margin:0;color:var(--muted)}

/* Form */
.form{
  margin-top:18px;
  background: rgba(255,255,255,.92);
  border:1px solid var(--line2);
  border-radius: var(--r);
  padding:18px;
  box-shadow: var(--shadow);
}
label{display:block;font-weight:900;margin-top:12px}
input,select,textarea{
  width:100%;
  margin-top:6px;
  padding:12px;border-radius:12px;
  border:1px solid rgba(15,23,42,.14);
  background: #ffffff;
  color:var(--text);
  outline:none;
}
input:focus,select:focus,textarea:focus{
  border-color: rgba(56,189,248,.65);
  box-shadow: 0 0 0 4px rgba(56,189,248,.16);
}
textarea{min-height:120px;resize:vertical}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}

.btn{
  display:inline-flex;
  margin-top:14px;
  padding:12px 16px;
  border-radius:12px;
  border:1px solid rgba(15,23,42,.14);
  background: rgba(15,23,42,.04);
  color:var(--text);
  font-weight:900;
  cursor:pointer;
}
.btn:hover{background: rgba(15,23,42,.06)}

/* Footer */
.footer{
  margin-top:28px;
  border-top:1px solid var(--line2);
  background: rgba(245,247,255,.72);
}
.footer small{color:rgba(75,85,99,.95)}

@media (max-width:860px){
  h1{font-size:34px}
  .grid{grid-template-columns:1fr}
  .row{grid-template-columns:1fr}
}