:root {
  --bg: #0b0d12;
  --bg-alt: #11141c;
  --fg: #e8eaf0;
  --muted: #99a0b3;
  --accent: #6ea8fe;
  --accent-2: #b57bff;
  --line: #1e2230;
  --radius: 14px;
  --max: 980px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

/* nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 22px;
  background: rgba(11, 13, 18, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.brand { font-weight: 650; letter-spacing: -0.01em; }
.mark { color: var(--accent); }
.nav nav { display: flex; gap: 20px; }
.nav nav a { color: var(--muted); font-size: 15px; }
.nav nav a:hover { color: var(--fg); }

/* hero */
.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 96px 22px 80px;
  text-align: center;
}
.eyebrow {
  margin: 0 0 14px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 12px;
  color: var(--muted);
}
h1 {
  margin: 0;
  font-size: clamp(38px, 7vw, 68px);
  line-height: 1.06;
  letter-spacing: -0.03em;
  font-weight: 700;
}
.grad {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lede {
  max-width: 620px;
  margin: 22px auto 0;
  color: var(--muted);
  font-size: 18px;
}
.cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 32px; }

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  transition: transform 0.12s ease, opacity 0.12s ease;
}
.btn:hover { transform: translateY(-1px); }
.primary { background: linear-gradient(90deg, var(--accent), var(--accent-2)); color: #0b0d12; }
.ghost { border-color: var(--line); color: var(--fg); }
.ghost:hover { border-color: var(--accent); }

/* bands */
.band {
  max-width: var(--max);
  margin: 0 auto;
  padding: 72px 22px;
  border-top: 1px solid var(--line);
}
.band.alt { background: var(--bg-alt); max-width: none; }
.band.alt > * { max-width: var(--max); margin-left: auto; margin-right: auto; }
h2 {
  margin: 0 0 28px;
  font-size: clamp(24px, 3.6vw, 34px);
  letter-spacing: -0.02em;
}
h3 { margin: 0 0 8px; font-size: 18px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
}
.card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-alt);
}
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.band.alt .card { background: var(--bg); }

.steps { margin: 0; padding-left: 20px; color: var(--muted); }
.steps li { margin-bottom: 10px; }
.steps strong { color: var(--fg); }
.note { color: var(--muted); font-size: 15px; margin-top: 24px; }

footer {
  border-top: 1px solid var(--line);
  padding: 28px 22px 48px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 520px) {
  .hero { padding: 64px 20px 56px; }
  .nav nav { gap: 14px; }
}

/* writing list */
.list { list-style: none; margin: 0; padding: 0; }
.list li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.list a:hover { color: var(--accent); }
.meta { color: var(--muted); font-size: 14px; white-space: nowrap; }

/* marks a block still waiting on real content; delete this rule when done */
[data-fill] { outline: 1px dashed rgba(181, 123, 255, 0.45); outline-offset: 6px; }