:root {
  --bg: #0c0c12;
  --panel: #16161f;
  --text: #f4f4f5;
  --muted: #9b9ba8;
  --teal: #2dd4bf;
  --line: rgba(255, 255, 255, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 16px/1.55 ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
}

a { color: var(--teal); }

.nav, main, footer {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 28px;
  padding-bottom: 28px;
}

.brand {
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
}

nav { display: flex; gap: 16px; }
nav a { color: var(--muted); text-decoration: none; }
nav a[aria-current="page"], nav a:hover { color: var(--text); }

.hero { padding: 24px 0 8px; }
.kicker {
  color: var(--teal);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
h1 { font-size: 36px; letter-spacing: -0.03em; line-height: 1.15; margin: 8px 0 12px; }
h2 { margin-top: 32px; }
.lead, .meta { color: var(--muted); }
.page-head { padding-top: 8px; }

.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 20px; }

.btn {
  display: inline-block;
  background: var(--teal);
  color: #0f172a;
  text-decoration: none;
  font-weight: 700;
  border-radius: 999px;
  padding: 10px 16px;
}

.btn.ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}

code {
  font: 13px ui-monospace, SFMono-Regular, Menlo, monospace;
  background: var(--panel);
  padding: 1px 6px;
  border-radius: 6px;
}

footer {
  color: var(--muted);
  font-size: 14px;
  padding: 48px 24px 64px;
}

@media (max-width: 640px) {
  h1 { font-size: 28px; }
  .nav { flex-direction: column; align-items: flex-start; gap: 12px; }
}