:root {
  --bg: #0a0a0a;
  --card: #161616;
  --card-2: #1d1d1d;
  --text: #e6e6e6;
  --muted: #888;
  --border: #242424;
  --accent: #7c5cff;
  --accent-2: #a48bff;
  --good: #34d399;
  --warn: #fbbf24;
  --bad: #f87171;
  --maxw: 1200px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); }
body {
  font: 14px/1.5 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  min-height: 100vh;
}
a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 28px 24px 12px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
}
.brand { display: flex; flex-direction: column; gap: 4px; }
.logo {
  font-weight: 700; letter-spacing: -0.02em;
  font-size: 22px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.tagline { color: var(--muted); font-size: 13px; }
.actions { display: flex; gap: 8px; }

.btn {
  appearance: none; -webkit-appearance: none;
  background: var(--accent); color: #0a0613;
  border: 1px solid transparent;
  padding: 8px 14px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  font-size: 13px;
  transition: opacity 120ms ease;
}
.btn:hover { opacity: 0.9; }
.btn.ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn.ghost:hover { background: var(--card); }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }

.stats {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 12px 24px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}
.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  display: flex; flex-direction: column; gap: 4px;
}
.stat-card .label { color: var(--muted); font-size: 12px; }
.stat-card .value { font-size: 15px; font-weight: 600; word-break: break-word; }

.tabs {
  max-width: var(--maxw);
  margin: 16px auto 0;
  padding: 0 24px;
  display: flex; gap: 6px;
  border-bottom: 1px solid var(--border);
}
.tab {
  background: transparent;
  color: var(--muted);
  border: 0; border-bottom: 2px solid transparent;
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}
.tab.is-active { color: var(--text); border-bottom-color: var(--accent); }
.tab:hover { color: var(--text); }

.filters {
  max-width: var(--maxw);
  margin: 12px auto;
  padding: 0 24px;
  display: flex; flex-wrap: wrap; gap: 12px;
  align-items: end;
}
.filters label {
  display: flex; flex-direction: column; gap: 4px;
  color: var(--muted);
  font-size: 12px;
}
.filters select, .filters input[type=search] {
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 10px;
  font-size: 13px;
  min-width: 130px;
}
.filters .search { flex: 1; min-width: 200px; }
.filters .search input { width: 100%; }

.view {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 6px 24px 40px;
}
.view.hidden { display: none; }
.cards { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  cursor: pointer;
  transition: border-color 120ms ease;
}
.card:hover { border-color: #333; }
.card .row1 { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.card .repo { font-weight: 700; font-size: 15px; word-break: break-all; }
.card .pretty { color: var(--muted); font-size: 13px; }
.card .meta { color: var(--muted); font-size: 12px; margin-top: 4px; }
.card .desc { font-size: 13px; margin-top: 8px; color: #cfcfcf; }
.card .chips { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; }
.card .right { text-align: right; min-width: 110px; }
.card .stat-line { color: var(--muted); font-size: 12px; }
.card .stat-strong { font-weight: 700; color: var(--text); }
.chip {
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 11px;
  color: var(--text);
}
.chip.lic    { color: #a4b9ff; }
.chip.task   { color: #ffd6a3; }
.chip.size   { color: #b9f5b3; }
.chip.lang   { color: #f9c8ff; }
.chip.arxiv  { color: var(--accent-2); }
.chip.quality { color: var(--good); border-color: rgba(52, 211, 153, 0.4); }
.dot-new { color: var(--accent); }

.footer { display: flex; justify-content: space-between; align-items: center; margin-top: 16px; gap: 12px; }
.muted { color: var(--muted); font-size: 12px; }

.bottom {
  max-width: var(--maxw);
  margin: 24px auto;
  padding: 12px 24px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.back-row { padding: 4px 0 12px; }

.detail-head { display: flex; flex-direction: column; gap: 6px; }
.detail-head h1 {
  margin: 0; font-size: 22px; word-break: break-all;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.detail-stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 10px; margin-top: 12px;
}
.detail-stats > div {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
}
.detail-stats .k { color: var(--muted); font-size: 11px; }
.detail-stats .v { font-weight: 700; }

.spark { width: 100%; height: 80px; background: var(--card); border: 1px solid var(--border); border-radius: 10px; }

pre.readme {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  overflow: auto;
  max-height: 480px;
  font: 12.5px/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color: #cfcfcf;
  white-space: pre-wrap;
}

.quality-breakdown { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; font-size: 12px; }
.quality-breakdown li { display: flex; justify-content: space-between; }
.quality-breakdown .delta-pos { color: var(--good); }
.quality-breakdown .delta-neg { color: var(--bad); }

.papers { display: flex; flex-direction: column; gap: 6px; margin-top: 12px; }
.paper {
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 12.5px;
}
.paper .arxiv { color: var(--muted); font-family: ui-monospace, monospace; }

h2.section { font-size: 14px; color: var(--muted); margin: 20px 0 8px; text-transform: uppercase; letter-spacing: 0.05em; }

.author-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  display: flex; justify-content: space-between; gap: 12px;
  cursor: pointer;
}
.author-card:hover { border-color: #333; }
.author-card .name { font-weight: 700; }
.author-card .meta { color: var(--muted); font-size: 12px; }

@media (max-width: 720px) {
  .card { grid-template-columns: 1fr; }
  .card .right { text-align: left; }
  .stats { grid-template-columns: 1fr 1fr; }
}