:root {
  --bg: #0a0a0a;
  --fg: #e8e8e8;
  --muted: #888;
  --accent: #4f9cf7;
  --surface: #141414;
  --border: #222;
  --max-w: 720px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

/* ── Header ── */
header {
  padding: 48px 0 32px;
  border-bottom: 1px solid var(--border);
}

header h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

header h1 span { color: var(--accent); }

header p.tagline {
  color: var(--muted);
  font-size: 1.1rem;
  margin-top: 8px;
}

/* ── Sections ── */
section {
  padding: 48px 0;
  border-bottom: 1px solid var(--border);
}

section:last-of-type { border-bottom: none; }

section h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

section p { color: var(--muted); margin-bottom: 12px; }

/* ── Feature grid ── */
.features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 16px;
}

.feature {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
}

.feature h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.feature p {
  font-size: 0.875rem;
  color: var(--muted);
  margin: 0;
}

/* ── How it works ── */
.steps {
  list-style: none;
  counter-reset: step;
  margin-top: 16px;
}

.steps li {
  counter-increment: step;
  padding: 12px 0;
  padding-left: 36px;
  position: relative;
  color: var(--muted);
  font-size: 0.95rem;
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 12px;
  width: 24px;
  height: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

/* ── Footer ── */
footer {
  padding: 32px 0;
  color: var(--muted);
  font-size: 0.8rem;
  text-align: center;
}

/* ── Responsive ── */
@media (max-width: 540px) {
  .features { grid-template-columns: 1fr; }
  header h1 { font-size: 1.5rem; }
}