:root{
  --primary:#1d4ed8;
  --secondary:#f59e0b;
  --dark:#0b1220;
  --muted:#6b7280;
  --bg:#ffffff;
  --light:#f7fafc;
  --success:#16a34a;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Helvetica,Arial,sans-serif;color:#111;background:var(--bg);line-height:1.6}
a{color:var(--primary);text-decoration:none}
.container{width:min(1160px,92%);margin:0 auto}
.btn{display:inline-block;padding:12px 18px;border-radius:999px;font-weight:700}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{filter:brightness(1.1)}
.btn-ghost{border:2px solid #fff;color:#fff}
.btn-wa{background:#25D366;color:#fff}
.btn-mail{border:2px solid var(--primary);color:var(--primary);font-weight:800}
.pill{display:inline-block;background:rgba(255,255,255,.25);border:1px solid rgba(255,255,255,.35);color:#fff;padding:6px 12px;border-radius:999px;font-size:12px;letter-spacing:.3px}

/* Header sticky */
.topbar{position:sticky;top:0;z-index:999;background:rgba(255,255,255,.9);backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid #e5e7eb}
.topbar .row{display:flex;align-items:center;gap:14px;padding:10px 0}
.brand{display:flex;align-items:center;gap:12px}
.brand img{height:36px;width:auto}
.brand span{font-weight:800;color:var(--dark);font-size:18px}
.topnav{margin-left:auto;display:flex;gap:16px;flex-wrap:wrap}
.topnav a{padding:8px 10px;color:var(--dark);font-weight:600}
.cta-mini{margin-left:auto;display:none}
@media (max-width:840px){ .topnav{display:none} .cta-mini{display:block} }

/* Hero */
.hero{
  position:relative;isolation:isolate;color:#fff;text-align:center;padding:86px 0 72px;
  background:linear-gradient(180deg, rgba(13,20,38,.75), rgba(13,20,38,.75)),
             url('https://images.unsplash.com/photo-1600490036275-35f5f98d903d?q=80&w=1600&auto=format&fit=crop') center/cover no-repeat;
}
.hero h1{font-size:clamp(28px,4vw,44px);margin:8px 0 10px;font-weight:900;letter-spacing:.2px}
.hero p.big{font-size:clamp(15px,2.2vw,18px);color:#e5e7eb;margin:0 auto 22px;max-width:820px}
.hero .cta-wrap{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.badges{margin-top:18px;display:flex;gap:10px;justify-content:center;flex-wrap:wrap}

/* Sections */
section{padding:64px 0}
section h2{font-size:clamp(22px,3.2vw,34px);margin:0 0 10px;font-weight:900;color:var(--dark)}
section p.lead{color:var(--muted);max-width:820px}
.grid{display:grid;gap:18px}
.grid-3{grid-template-columns:repeat(3,1fr)}
@media (max-width:900px){ .grid-3{grid-template-columns:1fr 1fr} }
@media (max-width:640px){ .grid-3{grid-template-columns:1fr} }

/* Cards servizi */
.card{
  background:#fff;border:1px solid #e5e7eb;border-radius:16px;overflow:hidden;
  box-shadow:0 10px 30px rgba(0,0,0,.04)
}
.card img{width:100%;height:220px;object-fit:cover}
.card .body{padding:18px}
.card h3{margin:0 0 8px;font-size:20px}
.chip{display:inline-block;background:#eef2ff;color:#1e3a8a;border:1px solid #c7d2fe;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:700}

/* Steps */
.light{background:var(--light)}
.steps{counter-reset:st}
.step{display:flex;gap:12px;align-items:flex-start;padding:14px 0}
.step .no{counter-increment:st;min-width:36px;height:36px;display:grid;place-items:center;border-radius:999px;background:var(--primary);color:#fff;font-weight:900}

/* CTA Stripe */
.cta-stripe{background:linear-gradient(90deg,var(--primary),#0ea5e9);color:#fff;border-radius:16px;padding:22px}
.cta-stripe h3{margin:0 0 6px;font-size:22px}
.cta-stripe p{margin:0 0 12px;color:#e5e7eb}

/* FAQ */
.faq{grid-template-columns:1fr 1fr}
@media (max-width:840px){ .faq{grid-template-columns:1fr} }
details{border:1px solid #e5e7eb;border-radius:12px;padding:12px 14px;background:#fff}
summary{cursor:pointer;font-weight:800}
details p{margin:10px 0 0;color:#374151}

/* Footer */
footer{background:#0b1220;color:#cbd5e1;padding:28px 0}
footer a{color:#93c5fd}
.footer-grid{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* Floating mobile call */
.float-call{
  position:fixed;z-index:9999;right:16px;bottom:16px;background:var(--success);color:#fff;
  padding:14px 16px;border-radius:999px;font-weight:800;box-shadow:0 10px 30px rgba(0,0,0,.25)
}