:root {
  --bg: #0b0d12;
  --bg-soft: #12151c;
  --card: #161a22;
  --line: #232938;
  --text: #e9edf5;
  --muted: #9aa3b2;
  --accent: #4f8cff;
  --accent-soft: rgba(79, 140, 255, 0.12);
}

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

html { -webkit-text-size-adjust: 100%; }

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

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

.wrap { max-width: 760px; margin: 0 auto; padding: 0 22px; }

header.site {
  border-bottom: 1px solid var(--line);
  background: rgba(11, 13, 18, 0.85);
  backdrop-filter: saturate(160%) blur(10px);
  position: sticky;
  top: 0;
  z-index: 10;
}
header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 650;
  color: var(--text);
}
.brand .glyph {
  width: 26px;
  height: 26px;
  border-radius: 7px;
  background: var(--accent-soft);
  color: var(--accent);
  display: grid;
  place-items: center;
  font-size: 14px;
}
nav a {
  color: var(--muted);
  font-size: 14px;
  margin-left: 20px;
}
nav a:hover { color: var(--text); text-decoration: none; }

.hero { padding: 76px 0 40px; text-align: center; }
.pill {
  display: inline-block;
  font-size: 12.5px;
  letter-spacing: 0.3px;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid rgba(79, 140, 255, 0.25);
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 22px;
}
.hero h1 {
  font-size: clamp(30px, 5vw, 44px);
  line-height: 1.15;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}
.hero p.lead {
  color: var(--muted);
  font-size: 18px;
  max-width: 580px;
  margin: 0 auto;
}

.features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin: 46px 0 10px;
}
.feature {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px 18px;
}
.feature h3 { font-size: 15px; margin-bottom: 6px; }
.feature p { color: var(--muted); font-size: 14px; }

section.block { padding: 40px 0; border-top: 1px solid var(--line); }
section.block h2 {
  font-size: 22px;
  letter-spacing: -0.3px;
  margin-bottom: 18px;
}
section.block h3 {
  font-size: 16px;
  margin: 26px 0 8px;
}
section.block p, section.block li { color: var(--muted); }
section.block ul { padding-left: 20px; }
section.block li { margin: 7px 0; }
section.block strong { color: var(--text); }

.note {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 18px;
  font-size: 14px;
  color: var(--muted);
  margin-top: 28px;
}

footer.site {
  border-top: 1px solid var(--line);
  padding: 30px 0 50px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}
footer.site a { color: var(--muted); margin: 0 10px; }

@media (max-width: 600px) {
  .features { grid-template-columns: 1fr; }
  .hero { padding: 54px 0 30px; }
  nav a { margin-left: 14px; }
}