:root {
  color-scheme: light;
  --bg: #fcfcfd;
  --panel: #ffffff;
  --text: #111318;
  --muted: #71717a;
  --faint: #a1a1aa;
  --line: #ececef;
  --line-soft: #f3f3f5;
  --ink: #111318;
  --accent: #4f46e5;
  --accent-soft: #eef0ff;
  --fam-curated: #b45309;
  --fam-official: #2563eb;
  --fam-community: #7c3aed;
  --fam-aggregator: #0d9488;
  --fam-unknown: #71717a;
  --serif: Georgia, "Source Serif Pro", "Noto Serif SC", serif;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 980px; margin: 0 auto; padding: 0 28px; }

/* top bar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: -0.01em; }
.brand .dot { width: 10px; height: 10px; border-radius: 3px; background: var(--accent); }
.brand .sub { color: var(--faint); font-weight: 500; font-size: 0.85rem; }
.topbar nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 12px 22px; color: var(--muted); font-size: 0.9rem; }
.topbar nav a { color: var(--muted); text-decoration: none; }
.topbar nav a:hover { color: var(--ink); }

/* masthead */
.masthead { padding: 52px 0 34px; border-bottom: 1px solid var(--line); }
.kicker {
  margin: 0 0 14px;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.76rem;
}
.masthead h1 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
}
.masthead .lead {
  margin: 20px 0 0;
  max-width: 56ch;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.75;
  font-family: var(--serif);
}
.byline { margin-top: 22px; display: flex; flex-wrap: wrap; gap: 16px; align-items: center; color: var(--faint); font-size: 0.84rem; }
.byline b { color: var(--ink); font-weight: 600; }
.detail-link {
  border: 0;
  background: transparent;
  color: var(--accent);
  padding: 0;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.coverage-detail {
  padding: 16px 0 24px;
  border-bottom: 1px solid var(--line);
}
.coverage-detail-inner {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  padding: 16px 18px;
}
.coverage-detail-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}
.coverage-detail-head strong { font-family: var(--serif); font-size: 1rem; }
.detail-close {
  border: 0;
  background: transparent;
  color: var(--faint);
  font: inherit;
  cursor: pointer;
}
.coverage-detail-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 10px 14px;
}
.coverage-detail-item {
  padding: 10px 0;
  border-top: 1px solid var(--line-soft);
}
.coverage-detail-item:first-child,
.coverage-detail-item:nth-child(2) { border-top: 0; }
.coverage-detail-item strong { display: block; font-size: 0.9rem; }
.coverage-detail-item span { color: var(--muted); font-size: 0.8rem; }

/* external resources */
.resources { padding: 24px 0 28px; border-bottom: 1px solid var(--line); }
.res-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.res-tag {
  color: var(--faint);
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.7rem;
  margin-right: 4px;
  white-space: nowrap;
}
.res-sep { width: 1px; height: 18px; background: var(--line); margin: 0 6px; }
.res-card {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 10px;
  padding: 8px 14px;
  text-decoration: none;
  color: var(--text);
  font-size: 0.88rem;
  font-weight: 700;
  transition: 0.15s;
  border: 1px solid transparent;
}
.res-card:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08); }
.res-card .rc-dot { width: 8px; height: 8px; border-radius: 50%; flex: none; }
.res-card .rc-arr { color: var(--faint); font-size: 0.78rem; }
.res-card:hover .rc-arr { color: var(--accent); }

/* sticky controls */
.bar {
  position: sticky;
  top: 0;
  z-index: 20;
  margin: 0 -28px;
  padding: 16px 28px 14px;
  background: rgba(252, 252, 253, 0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.bar .row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
}
.bar .row + .row {
  margin-top: 12px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.range {
  display: inline-flex;
  align-items: center;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
}
.range-btn {
  border: 0;
  background: transparent;
  color: var(--muted);
  border-radius: 999px;
  padding: 7px 14px;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
}
.range-btn.on { background: var(--ink); color: #fff; }
.search {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 18px;
  background: #fff;
}
.search:focus-within { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.search svg { color: var(--faint); flex: none; }
.search input { border: 0; background: transparent; font: inherit; width: 100%; outline: none; color: var(--text); }

.sel {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  border-radius: 999px;
  padding: 9px 14px;
  font: inherit;
  font-size: 0.86rem;
  cursor: pointer;
}

.chips { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.chip {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--muted);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.82rem;
  cursor: pointer;
  font: inherit;
  transition: 0.15s;
}
.chip:hover { border-color: var(--ink); color: var(--ink); }
.chip.on { background: var(--ink); color: #fff; border-color: var(--ink); }

/* status + list */
.status { margin: 22px 0 6px; color: var(--faint); font-size: 0.84rem; }
.list { padding: 0 0 80px; }

.item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 18px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line-soft);
  transition: background 0.15s;
}
.item:hover { background: linear-gradient(90deg, var(--accent-soft), transparent 60%); }
.item .body { min-width: 0; }
.item .meta { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; color: var(--faint); font-size: 0.8rem; margin-bottom: 8px; }
.item .fam-tag {
  display: inline-flex;
  align-items: center;
  border-radius: 8px;
  padding: 4px 10px;
  font-weight: 800;
  font-size: 0.74rem;
  color: #fff;
}
.item .meta-tag {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px 9px;
  color: var(--muted);
  background: #fff;
  font-size: 0.74rem;
  font-weight: 700;
}
.item .meta-tag-site {
  border-color: #d7dcff;
  background: var(--accent-soft);
  color: var(--accent);
}
.item .meta-text { color: var(--muted); }
.item .meta-note { color: var(--faint); }
.item h2 { margin: 0 0 8px; font-family: var(--serif); font-weight: 700; font-size: 1.34rem; line-height: 1.28; letter-spacing: -0.01em; }
.item h2 a { color: inherit; text-decoration: none; }
.item:hover h2 a { text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 5px; text-decoration-thickness: 2px; }
.item .summary { margin: 0 0 12px; color: var(--muted); line-height: 1.7; font-size: 0.96rem; max-width: 70ch; }
.item .tags { display: flex; gap: 10px; flex-wrap: wrap; }
.item .tag { color: var(--muted); font-size: 0.78rem; }
.item .tag::before { content: "#"; color: var(--faint); }
.item .side { text-align: right; color: var(--faint); font-size: 0.78rem; white-space: nowrap; align-self: start; padding-top: 2px; }
.item .side .score { display: inline-block; margin-top: 8px; border: 1px solid var(--line); border-radius: 999px; padding: 3px 10px; color: var(--fam-aggregator); font-weight: 700; }
.coverage-detail-item small {
  display: block;
  margin-top: 4px;
  color: var(--faint);
  line-height: 1.5;
}

.empty { padding: 60px 0; color: var(--faint); text-align: center; font-family: var(--serif); }

@media (max-width: 720px) {
  .wrap { padding: 0 18px; }
  .topbar { align-items: flex-start; gap: 18px; }
  .topbar nav { gap: 10px 16px; }
  .bar { margin: 0 -18px; padding: 14px 18px 12px; }
  .item { grid-template-columns: 1fr; gap: 10px; }
  .item .side { text-align: left; }
  .item h2 { font-size: 1.22rem; }
  .bar .row { grid-template-columns: 1fr; }
  .bar .row + .row { grid-template-columns: 1fr; }
  .sel { width: 100%; }
  .coverage-detail-list { grid-template-columns: 1fr; }
}