:root {
  --bg: #0f1218;
  --panel: #171c24;
  --text: #e8eef6;
  --muted: #96a3b5;
  --accent: #4f8fd9;
  --accent-2: #a8c8ef;
  --border: #273140;
  --font: "Roboto", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(1100px 520px at 8% -12%, rgba(79, 143, 217, 0.18), transparent 55%),
    radial-gradient(900px 480px at 100% 0%, rgba(60, 100, 160, 0.14), transparent 50%),
    var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.55;
}

a { color: var(--accent-2); }

.shell {
  width: min(820px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.5rem 0 3rem;
}

.nav {
  width: min(820px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.25rem 0 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand {
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.01em;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.1rem;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}

.nav-links a:hover { color: var(--text); }

.hero {
  display: grid;
  gap: 0.85rem;
  margin: 1.5rem 0 2rem;
}

.kicker {
  margin: 0;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  font-weight: 500;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1.15;
}

.lead {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 38rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1rem;
  border-radius: 0.55rem;
  border: 1px solid var(--border);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
}

.btn-primary {
  background: color-mix(in srgb, var(--accent) 28%, transparent);
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
  color: var(--text);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
}

.card-grid {
  display: grid;
  gap: 0.9rem;
  margin: 1.5rem 0;
}

.card {
  border: 1px solid var(--border);
  border-radius: 0.85rem;
  padding: 1rem 1.1rem;
  background: color-mix(in srgb, var(--panel) 92%, black);
}

.card h2, .card h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.prose h1 {
  margin: 1.25rem 0 0.75rem;
  font-size: 1.85rem;
}

.prose h2 {
  margin: 1.6rem 0 0.55rem;
  font-size: 1.25rem;
}

.prose h3 {
  margin: 1.25rem 0 0.4rem;
  font-size: 1.05rem;
}

.prose p, .prose li {
  color: var(--muted);
}

.prose strong { color: var(--text); }

.prose code {
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.9em;
  background: #141910;
  border: 1px solid var(--border);
  border-radius: 0.35rem;
  padding: 0.1rem 0.35rem;
}

.prose pre {
  overflow-x: auto;
  padding: 0.9rem 1rem;
  border-radius: 0.7rem;
  border: 1px solid var(--border);
  background: #12161d;
}

.prose pre code {
  border: 0;
  background: transparent;
  padding: 0;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.95rem;
}

.prose th, .prose td {
  border: 1px solid var(--border);
  padding: 0.55rem 0.7rem;
  text-align: left;
}

.prose th {
  background: color-mix(in srgb, var(--panel) 80%, black);
  color: var(--text);
}

.page-list {
  padding-left: 1.2rem;
}

.footer {
  width: min(820px, calc(100% - 2rem));
  margin: 0 auto 2rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.footer p { margin: 0; }