/* contam-gap — dark theme */
:root {
  --bg:           #0e1116;
  --bg-elev:     #161b22;
  --bg-elev-2:   #1c232c;
  --border:      #2a3340;
  --text:        #f0f6fc;
  --text-mute:   #8b949e;
  --text-faint:  #6e7681;
  --accent:      #58a6ff;
  --accent-2:    #79c0ff;
  --green:       #2ecc71;
  --amber:       #f5a623;
  --red:         #e74c3c;
  --grey:        #7f8c98;
  --radius:      8px;
  --shadow:      0 1px 0 rgba(255,255,255,0.04), 0 12px 32px rgba(0,0,0,0.35);
  --mono:        ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans:        -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-2); text-decoration: underline; }

/* Topbar */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 28px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elev);
  position: sticky; top: 0; z-index: 10;
}
.brand { display: flex; align-items: baseline; gap: 10px; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand-mark { color: var(--accent); font-size: 22px; }
.brand-name { font-weight: 700; font-size: 18px; }
.brand-tag { color: var(--text-mute); font-size: 13px; }
.topnav a { margin-left: 18px; color: var(--text-mute); font-size: 14px; }
.topnav a:hover { color: var(--text); }

/* Main */
.view {
  flex: 1;
  padding: 28px;
  max-width: 1280px;
  margin: 0 auto;
  width: 100%;
}
.loading {
  text-align: center;
  padding: 80px 0;
  color: var(--text-mute);
  font-family: var(--mono);
}

/* KPIs */
.kpis {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}
.kpi {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.kpi-label { color: var(--text-mute); font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
.kpi-value { font-size: 26px; font-weight: 700; margin-top: 4px; }
.kpi-sub { color: var(--text-faint); font-size: 12px; margin-top: 2px; }

/* Filters bar */
.filters {
  display: flex; gap: 12px; flex-wrap: wrap;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-bottom: 16px;
  align-items: center;
}
.filters label { color: var(--text-mute); font-size: 13px; }
.filters select, .filters input[type=number] {
  background: var(--bg-elev-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 13px;
  font-family: var(--sans);
}
.filters button {
  margin-left: auto;
  background: var(--accent);
  color: #0b1119;
  border: 0;
  border-radius: 6px;
  padding: 7px 12px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}
.filters button:hover { background: var(--accent-2); }
.filters button:disabled { opacity: 0.5; cursor: progress; }

/* Table */
.tbl-wrap {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.tbl {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.tbl thead th {
  text-align: left;
  background: var(--bg-elev-2);
  border-bottom: 1px solid var(--border);
  padding: 10px 12px;
  color: var(--text-mute);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.4px;
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}
.tbl thead th:hover { color: var(--text); }
.tbl tbody td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.tbl tbody tr:hover { background: rgba(88,166,255,0.06); cursor: pointer; }
.tbl tbody tr:last-child td { border-bottom: 0; }

.num { font-family: var(--mono); text-align: right; }
.dim { color: var(--text-faint); }

/* Verdict badge */
.badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  border: 1px solid transparent;
  white-space: nowrap;
}
.badge-Generalizes { background: rgba(46,204,113,0.14); color: var(--green); border-color: rgba(46,204,113,0.3); }
.badge-Suspicious  { background: rgba(245,166,35,0.14);  color: var(--amber); border-color: rgba(245,166,35,0.3); }
.badge-Overfit     { background: rgba(231,76,60,0.14);   color: var(--red); border-color: rgba(231,76,60,0.3); }
.badge-Insufficient { background: rgba(127,140,152,0.14); color: var(--grey); border-color: rgba(127,140,152,0.3); }

/* Model detail */
.detail-back {
  display: inline-block;
  margin-bottom: 14px;
  color: var(--text-mute);
}
.detail-back:hover { color: var(--text); }
.detail-hero {
  display: flex; flex-wrap: wrap; gap: 16px; align-items: baseline; justify-content: space-between;
  margin-bottom: 18px;
}
.detail-hero h1 { font-size: 28px; margin: 0; }
.detail-hero .verdict-big { font-size: 14px; }

.split-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 14px;
  margin-bottom: 22px;
}
.split-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.split-card .label { color: var(--text-mute); font-size: 12px; text-transform: uppercase; letter-spacing: 0.4px; }
.split-card .pct { font-size: 28px; font-weight: 700; margin-top: 4px; }
.split-card .meta { color: var(--text-faint); font-size: 12px; margin-top: 6px; }

.section-h { font-size: 15px; color: var(--text-mute); text-transform: uppercase; letter-spacing: 0.5px; margin: 20px 0 10px; }

.history-list { margin: 0; padding: 0; list-style: none; }
.history-list li {
  display: flex; justify-content: space-between; padding: 6px 0;
  border-bottom: 1px solid var(--border); font-family: var(--mono); font-size: 12px; color: var(--text-mute);
}

/* Feed */
.feed-list { list-style: none; margin: 0; padding: 0; }
.feed-item {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-bottom: 8px;
  display: grid;
  grid-template-columns: 110px 130px 1fr 100px;
  gap: 12px;
  align-items: center;
  font-size: 13px;
}
.feed-item .date { color: var(--text-mute); font-family: var(--mono); font-size: 12px; }
.feed-item .split-pill {
  display: inline-block; padding: 2px 8px; border-radius: 4px; background: var(--bg-elev-2);
  border: 1px solid var(--border); color: var(--text-mute); font-size: 11px; text-transform: uppercase;
}
.feed-item .pct { font-family: var(--mono); text-align: right; font-weight: 600; }

/* Footer */
.footer {
  padding: 16px 28px;
  border-top: 1px solid var(--border);
  background: var(--bg-elev);
  font-size: 12px;
  color: var(--text-faint);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
}
.footer a { color: var(--text-mute); }
.footer a:hover { color: var(--text); }
.footer-stats { font-family: var(--mono); }

/* About */
.prose { max-width: 760px; }
.prose h2 { margin-top: 24px; font-size: 18px; }
.prose code { background: var(--bg-elev-2); padding: 1px 6px; border-radius: 4px; font-family: var(--mono); font-size: 13px; }
.prose table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 13px; }
.prose th, .prose td { padding: 8px 10px; border: 1px solid var(--border); text-align: left; }
.prose th { background: var(--bg-elev-2); }

/* Responsive */
@media (max-width: 720px) {
  .topbar { flex-direction: column; align-items: flex-start; gap: 10px; }
  .feed-item { grid-template-columns: 1fr; }
  .feed-item .pct { text-align: left; }
  .tbl thead th, .tbl tbody td { padding: 8px 6px; font-size: 12px; }
}