:root {
  --bg: #ffffff;
  --fg: #1f2328;
  --muted: #656d76;
  --border: #d0d7de;
  --link: #0969da;
  --code-bg: #f6f8fa;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  color: var(--fg);
  background: var(--bg);
  line-height: 1.5;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: var(--code-bg);
}
.topbar .brand { font-weight: 700; }
.topbar .sep { color: var(--muted); }
.topbar .repo-nav { margin-left: auto; display: flex; gap: 1rem; }

main { max-width: 1000px; margin: 0 auto; padding: 1.5rem 1.25rem; }

h1 { font-size: 1.4rem; word-break: break-all; }
.meta, .actions { color: var(--muted); font-size: 0.9rem; }
.actions a { font-size: 0.9rem; }

.repo-list { list-style: none; padding: 0; }
.repo-list li { padding: 0.4rem 0; border-bottom: 1px solid var(--border); }

table { width: 100%; border-collapse: collapse; }
table.tree td, table.log td { padding: 0.35rem 0.5rem; border-bottom: 1px solid var(--border); }
table.tree .size, table.log .date, table.log .author { color: var(--muted); white-space: nowrap; }
table.tree .size { text-align: right; }
.dir { font-weight: 600; }
.submodule { color: var(--muted); }

pre.code {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem;
  overflow-x: auto;
}
pre.code code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.85rem; }

.readme {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.5rem;
  margin-top: 1rem;
}
.readme pre { background: var(--code-bg); padding: 1rem; border-radius: 6px; overflow-x: auto; }
.readme code { background: var(--code-bg); padding: 0.1rem 0.3rem; border-radius: 4px; }
.readme pre code { background: none; padding: 0; }

table.blame { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.82rem; }
table.blame td { padding: 0 0.5rem; border: none; vertical-align: top; }
table.blame .commit { color: var(--link); }
table.blame .author { color: var(--muted); white-space: nowrap; }
table.blame .lineno { color: var(--muted); text-align: right; user-select: none; }
table.blame .line pre { margin: 0; white-space: pre; }

.log .msg { width: 100%; }
.binary { color: var(--muted); }

table.tree .status { font-family: ui-monospace, monospace; color: var(--muted); width: 1.5rem; }
table.tree .before { margin-left: 0.5rem; font-size: 0.8rem; color: var(--muted); }

.diff {
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow-x: auto;
  margin-top: 1rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.82rem;
}
.diff > div { white-space: pre; padding: 0 0.5rem; min-height: 1.2em; }
.diff .d-add { background: #e6ffec; }
.diff .d-del { background: #ffebe9; }
.diff .d-hunk { background: var(--code-bg); color: var(--muted); }
.diff .d-file { background: var(--code-bg); font-weight: 600; }