:root {
  --bg: #0b0d10;
  --bg-soft: #11151a;
  --surface: #161b22;
  --text: #e6edf3;
  --text-dim: #9fb0c0;
  --accent: #4f8cff;
  --accent-hover: #6ba0ff;
  --border: #1f262e;
  --max: 1080px;
  --radius: 10px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

/* Nav */
.nav {
  border-bottom: 1px solid var(--border);
  background: rgba(11, 13, 16, 0.85);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
}
.brand {
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
  letter-spacing: -0.01em;
}
.nav nav a {
  margin-left: 24px;
  color: var(--text-dim);
  font-size: 15px;
}
.nav nav a:hover { color: var(--text); }
.nav nav a.cta-link { color: var(--accent); }

/* Sections */
section { padding: 96px 0; border-bottom: 1px solid var(--border); }
section:last-of-type { border-bottom: none; }

h1, h2, h3 {
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 16px;
}
h1 { font-size: 56px; font-weight: 700; }
h2 { font-size: 36px; font-weight: 600; margin-bottom: 24px; }
h3 { font-size: 20px; font-weight: 600; margin-bottom: 8px; }

p { margin: 0 0 16px; color: var(--text-dim); }
.lede, .section-lede {
  font-size: 19px;
  color: var(--text);
  max-width: 720px;
  margin-bottom: 32px;
}

/* Hero */
.hero { padding-top: 120px; padding-bottom: 120px; }
.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(79, 140, 255, 0.1);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 24px;
}
.hero h1 { max-width: 880px; }
.hero-actions { margin-top: 32px; display: flex; gap: 12px; flex-wrap: wrap; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  transition: background 120ms ease, border-color 120ms ease, color 120ms ease;
  cursor: pointer;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); color: #fff; }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-large { padding: 16px 28px; font-size: 17px; }

/* Grids */
.grid-2, .grid-3 {
  display: grid;
  gap: 24px;
  margin-top: 32px;
}
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2 > div, .grid-3 > div {
  background: var(--surface);
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

/* Steps */
.steps {
  list-style: none;
  padding: 0;
  margin: 32px 0 0;
  display: grid;
  gap: 20px;
}
.steps li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 28px 28px 84px;
  position: relative;
}
.step-n {
  position: absolute;
  left: 28px;
  top: 28px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

/* Footer */
.footer {
  padding: 32px 0;
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer p { margin: 0; color: var(--text-dim); font-size: 14px; }
.footer nav a {
  margin-left: 20px;
  color: var(--text-dim);
  font-size: 14px;
}
.footer nav a:hover { color: var(--text); }

/* Responsive */
@media (max-width: 720px) {
  h1 { font-size: 40px; }
  h2 { font-size: 28px; }
  section { padding: 64px 0; }
  .hero { padding-top: 72px; padding-bottom: 72px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .nav nav a { margin-left: 16px; font-size: 14px; }
  .nav nav a:first-child { display: none; }
}