:root {
  --bg: #0f1115;
  --panel: #161a22;
  --panel-2: #1b2030;
  --border: #262b38;
  --text: #e6e8ee;
  --muted: #8b93a7;
  --accent: #6366f1;
  --accent-2: #818cf8;
  --green: #34d399;
}
* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  line-height: 1.65;
}
.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 3rem 1.25rem 5rem;
}
nav.top {
  max-width: 760px;
  margin: 0 auto;
  padding: 1rem 1.25rem;
  display: flex;
  gap: 1.25rem;
  align-items: center;
  font-size: .875rem;
  border-bottom: 1px solid var(--border);
}
nav.top a {
  color: var(--muted);
  text-decoration: none;
  transition: color .15s;
}
nav.top a:hover { color: var(--accent-2); }
nav.top .brand {
  color: var(--text);
  font-weight: 600;
  margin-right: auto;
  display: flex;
  align-items: center;
  gap: .5rem;
}
nav.top .brand .dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
}
h1 {
  font-size: 2.1rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 .5rem;
}
h2 {
  font-size: 1.3rem;
  margin: 2.25rem 0 .75rem;
  letter-spacing: -0.01em;
}
h3 {
  font-size: 1.05rem;
  margin: 1.5rem 0 .5rem;
  color: var(--accent-2);
}
p, li { color: #cbd0de; }
.lead {
  color: var(--muted);
  font-size: 1.05rem;
  margin: 0 0 2rem;
}
a {
  color: var(--accent-2);
  text-decoration: none;
}
a:hover { text-decoration: underline; }
ul, ol { padding-left: 1.25rem; }
li { margin: .3rem 0; }
code {
  background: var(--panel-2);
  border: 1px solid var(--border);
  padding: .1rem .4rem;
  border-radius: 5px;
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: .85em;
  color: var(--accent-2);
}
.cta {
  display: inline-block;
  margin: 2rem 0 .5rem;
  padding: .8rem 1.4rem;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  color: white !important;
  border-radius: 8px;
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(99, 102, 241, .35);
  transition: transform .1s, box-shadow .15s;
}
.cta:hover {
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, .5);
}
.callout {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  margin: 1.25rem 0;
}
footer {
  max-width: 760px;
  margin: 3rem auto 2rem;
  padding: 1.5rem 1.25rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: .85rem;
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}
footer a { color: var(--muted); }
footer a:hover { color: var(--accent-2); }