:root{
  --bg:#0a0a0b; --bg-2:#111114; --surface:#15151a; --surface-2:#1c1c22;
  --border:rgba(255,255,255,.08); --border-2:rgba(255,255,255,.14);
  --text:#f4f4f5; --muted:#a1a1aa;
  --accent:#10b981; --accent-2:#34d399; --accent-soft:rgba(16,185,129,.12);
  --danger:#ef4444; --warning:#f59e0b; --info:#3b82f6;
  --radius:16px; --radius-sm:12px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Inter","Segoe UI",Roboto,sans-serif;
  background:var(--bg); color:var(--text); line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1180px;margin:0 auto;padding:0 24px}
.muted{color:var(--muted)}
.accent{color:var(--accent)}

/* ---------- Header ---------- */
header.site{
  position:sticky;top:0;z-index:50;
  background:rgba(10,10,11,.75); backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.01em}
.brand-mark{
  width:30px;height:30px;border-radius:9px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  display:grid;place-items:center;color:#04221a;font-weight:800;
}
.nav-links{display:flex;gap:26px;color:var(--muted);font-size:14px}
.nav-links a:hover{color:var(--text)}
.nav-right{display:flex;align-items:center;gap:12px}
.lang-switch{display:flex;gap:6px;font-size:12px;color:var(--muted)}
.lang-switch a{padding:4px 8px;border-radius:6px;border:1px solid var(--border)}
.lang-switch a.active{color:var(--text);border-color:var(--border-2);background:var(--surface)}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:12px;font-weight:600;font-size:14px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .15s ease, background .2s ease, border-color .2s ease;
}
.btn-primary{background:var(--accent);color:#04221a}
.btn-primary:hover{background:var(--accent-2);transform:translateY(-1px)}
.btn-ghost{border-color:var(--border);color:var(--text);background:transparent}
.btn-ghost:hover{background:var(--surface);border-color:var(--border-2)}
.btn-danger{background:var(--danger);color:#fff}
.btn-block{width:100%;justify-content:center}

/* ---------- Hero ---------- */
.hero{padding:110px 0 80px;position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:-20% -10% auto auto;height:560px;width:720px;
  background:radial-gradient(closest-side,rgba(16,185,129,.20),transparent 70%);pointer-events:none;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 12px;border-radius:999px;
  background:var(--surface);border:1px solid var(--border);
  color:var(--muted);font-size:13px;margin-bottom:24px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:999px;background:var(--accent)}
h1{font-size:60px;line-height:1.04;letter-spacing:-.03em;margin:0 0 22px;font-weight:700;max-width:880px}
h1 .accent{
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.lead{font-size:19px;color:var(--muted);max-width:680px;margin:0 0 32px}
.cta-row{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- Sections ---------- */
section{padding:90px 0;border-top:1px solid var(--border)}
.section-head{max-width:720px;margin:0 auto 56px;text-align:center}
.kicker{
  display:inline-block;padding:5px 12px;border-radius:999px;
  background:var(--accent-soft);color:var(--accent);font-size:12px;
  font-weight:600;text-transform:uppercase;letter-spacing:.08em;margin-bottom:16px;
}
h2{font-size:38px;line-height:1.15;letter-spacing:-.02em;margin:0 0 14px;font-weight:700}
h3{font-size:18px;margin:0 0 8px;font-weight:600}
.grid{display:grid;gap:20px}
.cols-3{grid-template-columns:repeat(3,1fr)}
.cols-4{grid-template-columns:repeat(4,1fr)}
.cols-2{grid-template-columns:repeat(2,1fr)}
@media (max-width:880px){.cols-2,.cols-3,.cols-4{grid-template-columns:1fr}h1{font-size:42px}h2{font-size:28px}}

.card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:24px;
  transition:border-color .2s, transform .2s;
}
.card:hover{border-color:var(--border-2);transform:translateY(-2px)}
.card .icon{
  width:44px;height:44px;border-radius:12px;
  background:var(--accent-soft);color:var(--accent);
  display:grid;place-items:center;margin-bottom:14px;font-size:20px;
}

/* ---------- Dashboard preview ---------- */
.preview{padding:60px 0;border-top:1px solid var(--border)}
.preview-wrap{
  border:1px solid var(--border);border-radius:20px;overflow:hidden;
  background:var(--bg-2);box-shadow:0 30px 80px -20px rgba(0,0,0,.6);
}

/* ---------- FAQ ---------- */
.faq details{
  background:var(--surface);border:1px solid var(--border);
  border-radius:12px;padding:18px 22px;margin-bottom:10px;
}
.faq summary{cursor:pointer;font-weight:600;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq details[open]{border-color:var(--border-2)}

/* ---------- CTA strip ---------- */
.cta-strip{
  background:linear-gradient(135deg,rgba(16,185,129,.12),rgba(52,211,153,.04));
  border:1px solid var(--border-2);border-radius:20px;padding:48px;text-align:center;
}

/* ---------- Footer ---------- */
footer.site{padding:48px 0;border-top:1px solid var(--border);color:var(--muted);font-size:13px}
.foot{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}

/* ---------- Auth ---------- */
.auth-wrap{min-height:100vh;display:grid;place-items:center;padding:40px 20px}
.auth-card{
  width:100%;max-width:420px;background:var(--surface);
  border:1px solid var(--border);border-radius:18px;padding:32px;
}
.auth-card h2{font-size:24px;margin-bottom:6px}
.auth-card p.muted{margin-top:0;margin-bottom:22px}
.field{margin-bottom:16px}
.field label{display:block;margin-bottom:6px;font-size:13px;color:var(--muted)}
.field input,.field select,.field textarea{
  width:100%;background:var(--bg-2);border:1px solid var(--border);
  color:var(--text);padding:11px 13px;border-radius:10px;font-size:14px;
  font-family:inherit;outline:none;transition:border-color .15s;
}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent)}
.alert{padding:10px 14px;border-radius:10px;font-size:13px;margin-bottom:16px}
.alert-error{background:rgba(239,68,68,.1);color:#fca5a5;border:1px solid rgba(239,68,68,.3)}
.alert-success{background:rgba(16,185,129,.1);color:#6ee7b7;border:1px solid rgba(16,185,129,.3)}