:root {
  --bg: #0f1115;
  --surface: #171a21;
  --border: #262b36;
  --fg: #e8eaed;
  --muted: #98a1b3;
  --accent: #60a5fa;
  --accent-dim: #15203a;
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.65 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

code {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: .9em;
  background: #0b0d11;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: .1em .4em;
}

pre {
  margin: 0;
  padding: 1rem;
  overflow-x: auto;
  background: #0b0d11;
  border: 1px solid var(--border);
  border-radius: 10px;
}
pre code { background: none; border: 0; padding: 0; font-size: .85rem; }

.topbar {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: #12151b;
}

.brand { font-weight: 650; text-decoration: none; color: var(--fg); }

.topbar nav { display: flex; gap: .35rem; }
.topbar nav a {
  padding: .4rem .8rem;
  border-radius: 999px;
  font-size: .92rem;
  text-decoration: none;
  color: var(--muted);
}
.topbar nav a:hover { color: var(--fg); background: #1c202a; }
.topbar nav a.active { color: var(--accent); background: var(--accent-dim); }

main {
  flex: 1;
  width: 100%;
  max-width: 62rem;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 3rem;
}

footer {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  justify-content: space-between;
  max-width: 62rem;
  width: 100%;
  margin: 0 auto;
  padding: 1.25rem 1.5rem 2rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: .85rem;
}

.hero { margin-bottom: 2.5rem; }
.hero.narrow { max-width: 40rem; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .78rem;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--accent);
}
.badge.muted { color: var(--muted); }

.dot {
  width: .5rem;
  height: .5rem;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

h1 {
  margin: .6rem 0 .5rem;
  font-size: clamp(1.9rem, 5vw, 2.6rem);
  letter-spacing: -.025em;
  line-height: 1.15;
}

h2 { margin: 0 0 .75rem; font-size: 1.05rem; }

.lede { margin: 0; color: var(--muted); max-width: 44rem; }

.actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.5rem; }

.btn {
  display: inline-block;
  padding: .55rem 1.1rem;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--accent);
  color: #0a1020;
  font: inherit;
  font-size: .92rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}
.btn:hover { filter: brightness(1.08); }

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem;
  margin-bottom: 1rem;
}

.note {
  margin: 1rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: .88rem;
}