:root {
  --bg: #0a0d12;
  --bg-2: #10141b;
  --card: #151a22;
  --border: rgba(255,255,255,0.08);
  --text: #f4f6fa;
  --muted: #9aa4b2;
  --blue: #4c8dff;
  --blue-2: #2f6bff;
  --radius: 16px;
  --maxw: 760px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

/* Header / nav */
header.site {
  position: sticky; top: 0; z-index: 10;
  background: rgba(10,13,18,0.8);
  backdrop-filter: saturate(160%) blur(18px);
  -webkit-backdrop-filter: saturate(160%) blur(18px);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; letter-spacing: -0.02em; color: var(--text); }
.brand:hover { text-decoration: none; }
.logo {
  width: 30px; height: 30px; border-radius: 8px;
  background: linear-gradient(135deg, var(--blue), var(--blue-2));
  display: grid; place-items: center; font-size: 16px;
  box-shadow: 0 4px 14px rgba(47,107,255,0.4);
}
.nav-links { display: flex; gap: 20px; font-size: 0.92rem; }
.nav-links a { color: var(--muted); }
.nav-links a:hover { color: var(--text); text-decoration: none; }

/* Hero */
.hero { text-align: center; padding: 80px 0 56px; }
.hero .badge {
  display: inline-block; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--blue);
  background: rgba(76,141,255,0.12); border: 1px solid rgba(76,141,255,0.25);
  padding: 6px 14px; border-radius: 999px; margin-bottom: 22px;
}
.hero h1 { font-size: clamp(2.2rem, 6vw, 3.4rem); line-height: 1.08; letter-spacing: -0.03em; font-weight: 850; }
.hero p.lead { color: var(--muted); font-size: clamp(1.05rem, 2.5vw, 1.25rem); margin: 20px auto 0; max-width: 540px; }
.cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 34px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 700; font-size: 0.98rem; padding: 13px 22px; border-radius: 12px;
  transition: transform .15s ease, box-shadow .15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: linear-gradient(135deg, var(--blue), var(--blue-2)); color: #fff; box-shadow: 0 8px 22px rgba(47,107,255,0.35); }
.btn-ghost { background: var(--card); color: var(--text); border: 1px solid var(--border); }

/* Feature grid */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin: 10px 0 40px; }
.feature { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; }
.feature .ico { font-size: 26px; margin-bottom: 12px; }
.feature h3 { font-size: 1.05rem; margin-bottom: 6px; letter-spacing: -0.01em; }
.feature p { color: var(--muted); font-size: 0.92rem; }

/* Legal / doc pages */
.doc { padding: 48px 0 40px; }
.doc h1 { font-size: clamp(1.9rem, 5vw, 2.6rem); letter-spacing: -0.03em; margin-bottom: 8px; }
.doc .updated { color: var(--muted); font-size: 0.9rem; margin-bottom: 34px; }
.doc h2 { font-size: 1.25rem; margin: 34px 0 12px; letter-spacing: -0.01em; }
.doc p, .doc li { color: #d7dce4; font-size: 1rem; }
.doc p { margin-bottom: 14px; }
.doc ul { margin: 0 0 16px 22px; }
.doc li { margin-bottom: 8px; }
.doc strong { color: var(--text); }
.callout {
  background: var(--card); border: 1px solid var(--border); border-left: 3px solid var(--blue);
  border-radius: 12px; padding: 16px 18px; margin: 22px 0; color: #d7dce4;
}

/* Support cards */
.support-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; margin-bottom: 16px;
}
.support-card h3 { margin-bottom: 6px; }
.support-card p { color: var(--muted); font-size: 0.95rem; }
.faq details { border-bottom: 1px solid var(--border); padding: 16px 0; }
.faq summary { cursor: pointer; font-weight: 650; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--muted); font-size: 1.3rem; font-weight: 400; }
.faq details[open] summary::after { content: "\2013"; }
.faq p { color: var(--muted); margin-top: 12px; font-size: 0.95rem; }

/* Footer */
footer.site { border-top: 1px solid var(--border); padding: 34px 0 44px; margin-top: 30px; }
.foot-inner { display: flex; flex-wrap: wrap; gap: 14px 24px; justify-content: space-between; align-items: center; }
.foot-links { display: flex; gap: 20px; flex-wrap: wrap; font-size: 0.9rem; }
.foot-links a { color: var(--muted); }
.foot-copy { color: var(--muted); font-size: 0.85rem; }

@media (max-width: 560px) {
  .nav-links { gap: 14px; font-size: 0.85rem; }
  .hero { padding: 56px 0 40px; }
}