:root {
  color-scheme: dark;
  --bg: #0c0a09;
  --panel: #1c1917;
  --panel-soft: rgba(28, 25, 23, 0.8);
  --border: #292524;
  --emerald: #34d399;
  --emerald-dim: #065f46;
  --text: #e7e5e4;
  --muted: #a8a29e;
  --link: #34d399;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 'Ubuntu', system-ui, sans-serif;
  min-height: 100vh;
  padding: 0 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}
/* pill navbar, like petroid.xyz */
.topbar { width: 100%; display: flex; justify-content: center; padding-top: 1rem; }
.navpill {
  display: flex; align-items: center; gap: 1.5rem;
  background: var(--panel-soft);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 0.5rem 1.5rem;
  box-shadow: 0 10px 15px -3px rgba(0,0,0,.5);
  max-width: 56rem; width: 100%;
}
.brand { font-weight: 700; color: #fff; text-decoration: none; margin-right: auto; }
.navpill nav { display: flex; gap: 0.25rem; }
.navpill nav a {
  color: #fff; text-decoration: none; font-weight: 600; font-size: 1.05rem;
  padding: 0.25rem 0.75rem; border-radius: 0.5rem; transition: all .15s;
}
.navpill nav a:hover { outline: 2px solid var(--emerald); box-shadow: 0 0 16px 4px rgba(52,211,153,.35); }
a { color: var(--link); }
/* docs layout */
.layout { display: grid; grid-template-columns: 240px 1fr; max-width: 1100px; width: 100%; margin: 0 auto; }
.sidebar { padding: 1rem; border-right: 1px solid var(--border); display: flex; flex-direction: column; gap: 0.35rem; }
.side-heading { margin: 1rem 0 0.25rem; color: var(--muted); text-transform: uppercase; font-size: 0.75rem; letter-spacing: 0.05em; }
.content { padding: 1.5rem; min-width: 0; }
.crumb { color: var(--muted); margin: 0; }
/* title row: heading left, little copy button on the side */
.title-row { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; }
.title-row h1 { margin: 0.25rem 0 0.75rem; color: #fff; flex: 1; }
.copy-md {
  flex-shrink: 0; margin-top: 0.4rem;
  border: 1px solid var(--border); background: var(--panel); color: var(--muted);
  padding: 0.2rem 0.6rem; border-radius: 6px; cursor: pointer; font-size: 0.8rem;
  font-family: inherit; transition: all .15s; white-space: nowrap;
}
.copy-md:hover { outline: 2px solid var(--emerald); color: #fff; box-shadow: 0 0 16px 4px rgba(52,211,153,.3); }
.btn { border: 1px solid var(--border); background: var(--panel); color: var(--text); padding: 0.35rem 0.7rem; border-radius: 6px; cursor: pointer; text-decoration: none; font-size: 0.9rem; }
.prose { max-width: 75ch; color: #d6d3d1; }
.prose h1, .prose h2, .prose h3 { color: #fff; }
.prose pre { background: #000; padding: 1rem; overflow: auto; border-radius: 8px; border: 1px solid var(--border); }
.prose code { font-family: ui-monospace, monospace; }
.prose table { border-collapse: collapse; width: 100%; }
.prose th, .prose td { border: 1px solid var(--border); padding: 0.4rem 0.6rem; text-align: left; }
/* landing / docs hub */
.home { max-width: 42rem; width: 100%; margin: 0 auto; padding: 2rem 0; display: flex; flex-direction: column; gap: 1rem; }
.home h1 { color: var(--emerald); font-weight: 800; margin-bottom: 0; }
.home h2 { color: #fff; }
.home pre { background: #000; padding: 1rem; overflow: auto; border-radius: 8px; border: 1px solid var(--border); }
.sub { color: var(--muted); }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 0.75rem; }
.card { display: flex; flex-direction: column; gap: 0.25rem; padding: 1rem; border: 1px solid var(--border); border-radius: 8px; background: var(--panel); text-decoration: none; color: var(--text); }
.card span { color: var(--muted); font-size: 0.9rem; }
.card strong { color: #fff; }
@media (max-width: 800px) { .layout { grid-template-columns: 1fr; } .sidebar { border-right: 0; border-bottom: 1px solid var(--border); } }