:root {
  --bg: #0e1116;
  --fg: #e6edf3;
  --muted: #8b949e;
  --accent: #7ee787;
  --card: #161b22;
  --border: #30363d;
  --tag-bg: #1c2128;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff;
    --fg: #1f2328;
    --muted: #59636e;
    --accent: #1a7f37;
    --card: #f6f8fa;
    --border: #d0d7de;
    --tag-bg: #eaeef2;
  }
}
* { box-sizing: border-box }
html, body {
  margin: 0; padding: 0;
  background: var(--bg); color: var(--fg);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}
main { max-width: 860px; margin: 0 auto; padding: 3rem 1.5rem 6rem; }
h1 { font-size: 2.2rem; margin: 0 0 .25rem; letter-spacing: -0.02em; }
h2 { font-size: 1.35rem; margin: 2.75rem 0 .75rem; border-bottom: 1px solid var(--border); padding-bottom: .4rem; }
h3 { font-size: 1.05rem; margin: 1.5rem 0 .4rem; }
h4 { font-size: .95rem; margin: 1.25rem 0 .3rem; color: var(--muted); font-weight: 600; }
p { color: var(--fg); margin: 0 0 .9rem; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; }
pre {
  background: var(--card); border: 1px solid var(--border); border-radius: 8px;
  padding: 1rem; overflow-x: auto; font-size: .88rem; margin: 1rem 0;
}
code { background: var(--tag-bg); padding: 1px 5px; border-radius: 4px; font-size: .9em; }
pre code { background: none; padding: 0; border-radius: 0; font-size: inherit; }
table { width: 100%; border-collapse: collapse; margin: 1rem 0; font-size: .9rem; }
th { text-align: left; padding: .5rem .75rem; border-bottom: 2px solid var(--border); color: var(--muted); font-weight: 600; font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; }
td { padding: .5rem .75rem; border-bottom: 1px solid var(--border); vertical-align: top; }
tr:last-child td { border-bottom: none; }
.pill {
  display: inline-block; padding: 2px 10px;
  border: 1px solid var(--border); border-radius: 999px;
  color: var(--muted); font-size: .82rem; margin-right: .35rem; margin-bottom: .25rem;
}
.pill-green { border-color: var(--accent); color: var(--accent); }
.cards {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: .85rem; margin: 1rem 0;
}
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 8px;
  padding: 1rem 1.1rem; text-decoration: none; display: block; color: inherit;
}
.card:hover { border-color: var(--accent); text-decoration: none; }
.card h3 { margin: 0 0 .3rem; font-size: 1rem; color: var(--fg); }
.card p { color: var(--muted); margin: 0; font-size: .88rem; }
.callout {
  background: var(--card); border-left: 3px solid var(--accent);
  border-radius: 0 6px 6px 0; padding: .8rem 1rem; margin: 1.25rem 0;
  font-size: .92rem;
}
.callout p { margin: 0; }
.tagline { color: var(--muted); font-size: 1.05rem; margin-top: 0; }
nav { margin-bottom: 2.5rem; font-size: .9rem; }
nav a { color: var(--muted); margin-right: 1.25rem; }
nav a:hover { color: var(--accent); }
nav a.active { color: var(--fg); font-weight: 600; }
.badge {
  display: inline-block; padding: 1px 7px; font-size: .75rem; font-weight: 600;
  border-radius: 999px; margin-left: .4rem; vertical-align: middle;
}
.badge-done { background: #1a4731; color: var(--accent); }
.badge-shelved { background: var(--tag-bg); color: var(--muted); }
.badge-always-on { background: #1c3048; color: #79c0ff; }
.badge-discoverable { background: var(--tag-bg); color: var(--muted); }
.toc { background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 1rem 1.25rem; margin: 1.5rem 0; }
.toc p { margin: 0 0 .5rem; font-size: .82rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); font-weight: 600; }
.toc ul { margin: 0; padding-left: 1.25rem; }
.toc li { font-size: .92rem; margin-bottom: .2rem; }
ul li, ol li { margin-bottom: .3rem; }
footer {
  margin-top: 4rem; color: var(--muted); font-size: .85rem;
  border-top: 1px solid var(--border); padding-top: 1rem;
}