:root {
  --bg: #0f1419;
  --card: #1a222c;
  --text: #e8eef4;
  --muted: #9aa8b5;
  --accent: #3dd6c6;
  --accent-dim: #2aa89b;
  --border: #2a3540;
  --code-bg: #121820;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}
.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 20px 80px;
}
.badge {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  border-radius: 999px;
  padding: 4px 12px;
  margin-bottom: 20px;
}
h1 {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  line-height: 1.25;
  margin: 0 0 16px;
  font-weight: 700;
}
h2 {
  font-size: 1.25rem;
  margin: 36px 0 12px;
  font-weight: 650;
}
h3 {
  font-size: 1.05rem;
  margin: 24px 0 8px;
  color: var(--accent);
}
p, li { color: var(--text); }
.lede {
  font-size: 1.08rem;
  color: var(--muted);
  margin: 0 0 28px;
}
a { color: var(--accent); }
a:hover { color: #6ee0d4; }
ul, ol { padding-left: 1.25rem; }
li { margin-bottom: 8px; }
.sample {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 22px;
  margin: 20px 0 28px;
}
.sample .subj {
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--accent);
}
.sample pre {
  margin: 0;
  white-space: pre-wrap;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--text);
  background: var(--code-bg);
  border-radius: 8px;
  padding: 16px;
  border: 1px solid var(--border);
}
.cta {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  margin: 36px 0 16px;
  text-align: center;
}
.cta h2 { margin-top: 0; }
.btn {
  display: inline-block;
  margin: 8px 6px;
  padding: 12px 22px;
  background: var(--accent);
  color: #0a1210 !important;
  text-decoration: none;
  font-weight: 700;
  border-radius: 8px;
}
.btn.secondary {
  background: transparent;
  color: var(--accent) !important;
  border: 1px solid var(--accent-dim);
}
.btn:hover { filter: brightness(1.05); }
.muted { color: var(--muted); font-size: 0.95rem; }
footer {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}