:root {
  --bg: #0f1115;
  --panel: #171a21;
  --border: #262b36;
  --fg: #e6e9ef;
  --muted: #8b93a7;
  --accent: #6ea8fe;
  --add: #56d364;
  --del: #f85149;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff;
    --panel: #f6f8fa;
    --border: #d0d7de;
    --fg: #1f2328;
    --muted: #656d76;
    --accent: #0969da;
    --add: #1a7f37;
    --del: #cf222e;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--fg);
}
header {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}
header h1 { margin: 0; font-size: 1.15rem; font-weight: 600; }
header h1 a { color: var(--accent); text-decoration: none; }
.repo { margin: 0.25rem 0 0; color: var(--muted); font-size: 0.85rem; }
main { max-width: 1000px; margin: 0 auto; padding: 1.5rem; }

.toolbar { display: flex; align-items: center; gap: 1rem; margin: 0 0 1rem; flex-wrap: wrap; }
.branch { font-size: 0.9rem; color: var(--muted); }
.branch select {
  font: inherit;
  margin-left: 0.35rem;
  background: var(--panel);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.2rem 0.4rem;
}
.filter { margin: 0; font-size: 0.9rem; }
a { color: var(--accent); }
a.host { text-decoration: none; margin-left: 0.35rem; opacity: 0.75; }
a.host:hover { opacity: 1; }

table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { text-align: left; padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 600; }
td.sha { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; white-space: nowrap; }
td.date { color: var(--muted); white-space: nowrap; }
td.prompt { color: var(--muted); }
tr.no-session td { opacity: 0.6; }
.muted { color: var(--muted); }

.session, .diff { margin-bottom: 2rem; }
h2 { font-size: 0.95rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); margin: 1.5rem 0 0.5rem; }
dl.meta { display: grid; grid-template-columns: max-content 1fr; gap: 0.25rem 1rem; margin: 0 0 1rem; }
dl.meta dt { color: var(--muted); }
dl.meta dd { margin: 0; }

pre.field, pre.patch {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  overflow-x: auto;
  white-space: pre-wrap;
  word-wrap: break-word;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.85rem;
}
pre.patch { white-space: pre; padding: 0; }
pre.patch .dl { display: block; padding: 0 1rem; }
pre.patch .dl.add { background: rgba(46, 160, 67, 0.15); color: var(--add); }
pre.patch .dl.del { background: rgba(248, 81, 73, 0.15); color: var(--del); }
pre.patch .dl.hunk { color: var(--accent); background: rgba(110, 168, 254, 0.08); }
pre.patch .dl.meta { color: var(--muted); }
pre.patch .dl.ctx { color: var(--fg); }

.empty { color: var(--muted); }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; background: var(--panel); padding: 0.1em 0.35em; border-radius: 4px; }