:root {
  --fg: #1a1a1a;
  --bg: #fafafa;
  --card-bg: #ffffff;
  --border: #ddd;
  --accent: #2563eb;
  --muted: #666;
}
* { box-sizing: border-box; }
body {
  font-family: -apple-system, "Segoe UI", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
}
header {
  padding: 24px 20px 8px;
  max-width: 960px;
  margin: 0 auto;
}
h1 { font-size: 22px; margin: 0 0 4px; }
.updated { color: var(--muted); font-size: 13px; margin: 0; }
main { max-width: 960px; margin: 0 auto; padding: 0 20px 60px; }
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  margin: 16px 0;
}
.filter-group { display: flex; flex-direction: column; gap: 6px; font-size: 13px; }
.filter-group label:first-child { font-weight: 600; color: var(--muted); }
.filter-group.search { flex: 1 1 240px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chips label { display: inline-flex; align-items: center; gap: 4px; font-weight: normal; font-size: 13px; cursor: pointer; }
select, input[type="text"] {
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
}
.count { color: var(--muted); font-size: 13px; }
.list { display: flex; flex-direction: column; gap: 10px; }
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
}
.card-title { font-size: 15px; font-weight: 600; margin: 0 0 4px; }
.card-title a { color: var(--fg); text-decoration: none; }
.card-title a:hover { color: var(--accent); text-decoration: underline; }
.card-meta { display: flex; flex-wrap: wrap; gap: 10px; font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  background: #eef2ff;
  color: var(--accent);
}
.card-summary { font-size: 13px; color: #333; margin: 0; }
.empty { text-align: center; color: var(--muted); padding: 40px 0; }
footer { max-width: 960px; margin: 0 auto; padding: 20px; color: var(--muted); font-size: 12px; }

@media (prefers-color-scheme: dark) {
  :root {
    --fg: #eee;
    --bg: #121212;
    --card-bg: #1c1c1c;
    --border: #333;
    --accent: #7aa2ff;
    --muted: #999;
  }
  .badge { background: #1e2a4a; }
}