:root {
  --bg: #0a0a0a;
  --surface: #111111;
  --lime: #c8ff00;
  --muted: #888888;
  --border: rgba(255, 255, 255, 0.08);
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: #fff;
  font-family: 'Inter', system-ui, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

.nav {
  position: sticky;
  top: 0;
  background: rgba(10, 10, 10, 0.72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}
.nav-inner {
  max-width: 820px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.brand {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 20px;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 6px;
}
.brand:hover {
  text-decoration: none;
}
.brand .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lime);
}
.nav .cta {
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 14px;
  color: #fff;
}
.nav .cta:hover {
  border-color: var(--lime);
  color: var(--lime);
  text-decoration: none;
}

article {
  max-width: 820px;
  margin: 0 auto;
  padding: 56px 24px 40px;
}
.eyebrow {
  color: var(--lime);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 12px;
  font-weight: 600;
}
h1 {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 40px;
  line-height: 1.15;
  margin: 16px 0 18px;
}
h2 {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 26px;
  margin: 40px 0 14px;
}
h3 {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 20px;
  margin: 28px 0 10px;
}
p {
  color: #d4d4d4;
  margin: 0 0 16px;
  font-size: 17px;
}
ul {
  margin: 0 0 16px 22px;
  color: #d4d4d4;
}
li {
  margin-bottom: 8px;
}
.meta {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 30px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 22px;
}

.cta-box {
  margin: 48px 0 10px;
  padding: 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  text-align: center;
}
.cta-box h2 {
  margin-top: 0;
}
.btn {
  display: inline-block;
  background: var(--lime);
  color: var(--bg);
  font-weight: 700;
  padding: 14px 28px;
  border-radius: 999px;
  margin-top: 10px;
}
.btn:hover {
  background: #fff;
  text-decoration: none;
}

footer {
  max-width: 820px;
  margin: 0 auto;
  padding: 30px 24px 60px;
  color: var(--muted);
  font-size: 14px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

@media (max-width: 640px) {
  h1 {
    font-size: 30px;
  }
  h2 {
    font-size: 22px;
  }
  article {
    padding: 40px 20px 30px;
  }
}