/* SST Consulting — site vitrine one-page */
:root{
  --paper:#ffffff;
  --text:#0b1220;
  --muted:#475569;
  --line:#e2e8f0;
  --brand:#50C878;
  --shadow:0 10px 30px rgba(2,6,23,.08);
  --radius:18px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;
  line-height:1.6;
  color:var(--text);
  background:#f8fafc;
}
a{color:inherit;text-decoration:none}
.container{max-width:1040px;margin:0 auto;padding:24px}

.top{
  background: radial-gradient(1200px 420px at 50% -180px, rgba(37,99,235,.25), transparent 55%),
              linear-gradient(180deg, #0b1220 0%, #0b1220 48%, #f8fafc 48%);
  color:#fff;
}

.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-top:8px;
}
.logo{font-weight:800;letter-spacing:.2px}
.menu{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.menu a{opacity:.9}
.menu a:hover{opacity:1}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:10px 16px;
  border-radius:999px;
  background:var(--brand);
  color:#fff;
  border:1px solid rgba(255,255,255,.12);
  box-shadow: 0 8px 20px rgba(37,99,235,.25);
}
.btn:hover{filter:brightness(1.03)}
.btn.ghost{
  background:#ffffff;
  color:#0b1220; /* NOIR */
  border:1px solid #e2e8f0;
  box-shadow:none;
}

.hero{
  padding:48px 0 320px;
  text-align:center;
}
.kicker{opacity:.9;margin:0 0 8px}
.hero h1{
  margin:0 auto 12px;
  max-width:860px;
  font-size:44px;
  line-height:1.15;
}
.lead{
  margin:0 auto 20px;
  max-width:760px;
  opacity:.9;
  font-size:18px;
}
.cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin:18px 0 18px}
.badges{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:16px}
.badges span{
  font-size:13px;
  padding:6px 10px;
  border-radius:999px;
  background:#ffffff;
  color:#0b1220; /* NOIR */
  border:1px solid #e2e8f0;
}

.section{margin:34px 0}
.section h2{margin:0 0 14px;font-size:28px}
.grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  gap:16px;
}
.card{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:16px;
  box-shadow: var(--shadow);
}
.card h3{margin:0 0 8px}
.card p{margin:0;color:var(--muted)}

.split{
  display:grid;
  grid-template-columns: 1fr 1.1fr;
  gap:18px;
  align-items:center;
}
.media img{
  width:100%;
  height:320px;
  object-fit:cover;
  border-radius:var(--radius);
  border:1px solid var(--line);
  box-shadow: var(--shadow);
  background:#e2e8f0;
}
.steps{margin:0;padding-left:18px}
.steps li{margin:8px 0;color:var(--muted)}
.note{color:var(--muted);margin-top:10px}

.contact{
  text-align:center;
  padding:18px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow: var(--shadow);
}
.contact p{color:var(--muted);margin-top:0}

.footer{
  margin-top:40px;
  border-top:1px solid var(--line);
  background:#fff;
}
.footer-inner{
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  align-items:center;
}
.footer a{color:var(--brand)}

@media (max-width: 860px){
  .hero h1{font-size:34px}
  .split{grid-template-columns:1fr}
  .media img{height:240px}
}