:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --panel-2: #334155;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #f8fafc;
  --link: #cbd5e1;
  --link-hover: #ffffff;
  --border: #334155;
  --max: 720px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--link-hover);
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 56px 24px 96px;
}

header.site {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}

header.site .brand {
  font-weight: 700;
  font-size: 18px;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: -0.01em;
}

header.site nav a {
  margin-left: 18px;
  font-size: 14px;
  text-decoration: none;
  color: var(--muted);
}

header.site nav a:hover { color: var(--link-hover); }

h1 {
  font-size: 36px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--accent);
  margin: 0 0 8px;
}

h2 {
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--accent);
  margin: 40px 0 12px;
}

h3 {
  font-size: 17px;
  color: var(--accent);
  margin: 24px 0 8px;
}

p, ul, ol { margin: 12px 0; }
ul, ol { padding-left: 22px; }
li { margin: 6px 0; }

.lede {
  color: var(--muted);
  font-size: 18px;
  margin-bottom: 28px;
}

.meta {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 28px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px 26px;
  margin: 18px 0;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.btn {
  display: inline-block;
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--accent);
  padding: 12px 18px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 500;
  font-size: 15px;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.btn:hover {
  background: var(--panel-2);
  border-color: #475569;
  color: #ffffff;
}

footer {
  border-top: 1px solid var(--border);
  margin-top: 64px;
  padding-top: 24px;
  color: var(--muted);
  font-size: 13px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
}

footer a {
  color: var(--muted);
  margin-right: 14px;
}

code {
  background: var(--panel-2);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
}

.kbd {
  display: inline-block;
  padding: 2px 8px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}