:root {
  --bg: #0b0d12;
  --panel: #141824;
  --text: #e8ecf4;
  --muted: #8b93a7;
  --accent: #ff5c39;
  --border: #262d40;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 32px;
}
.logo { font-weight: 800; font-size: 1.2rem; color: var(--accent); letter-spacing: 0.5px; }
.logo span { color: var(--text); }
.btn {
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  padding: 10px 18px;
  border-radius: 10px;
  font-weight: 600;
}
.btn.ghost { background: var(--panel); border: 1px solid var(--border); }
.btn.big { padding: 14px 26px; font-size: 1.05rem; }
.hero {
  text-align: center;
  padding: 90px 24px 60px;
  background: radial-gradient(ellipse at 50% 0%, #1a2135 0%, var(--bg) 65%);
}
.hero h1 { font-size: 3.2rem; margin: 0 0 16px; }
.hero .sub { color: var(--muted); font-size: 1.2rem; max-width: 640px; margin: 0 auto 32px; line-height: 1.6; }
.cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  max-width: 1080px;
  margin: 40px auto;
  padding: 0 24px;
}
.col {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
}
.col h2 { margin-top: 0; font-size: 1.15rem; }
.col p { color: var(--muted); line-height: 1.6; }
footer {
  display: flex;
  gap: 18px;
  justify-content: center;
  padding: 40px;
  color: var(--muted);
  font-size: 0.85rem;
}
footer a { color: var(--muted); }