:root {
  --bg: #0e1116;
  --panel: #161b22;
  --panel2: #1c2230;
  --border: #2a3140;
  --fg: #d7dde6;
  --muted: #8b97a7;
  --accent: #5aa0ff;
  --good: #4cc38a;
  --bad: #e5534b;
  --warn: #d6a52c;
  --mono: ui-monospace, "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 14px/1.5 system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
header {
  display: flex; align-items: center; gap: 22px;
  padding: 12px 22px; background: var(--panel); border-bottom: 1px solid var(--border);
}
header .brand { font-weight: 700; letter-spacing: .3px; }
header .brand span { color: var(--accent); }
header nav a { color: var(--muted); margin-right: 6px; }
header nav a:hover, header nav a.active { color: var(--fg); }
header .spacer { flex: 1; }
.btn {
  display: inline-block; padding: 6px 14px; border-radius: 6px; cursor: pointer;
  background: var(--accent); color: #04152e; border: none; font-weight: 600;
}
.btn.secondary { background: var(--panel2); color: var(--fg); border: 1px solid var(--border); }
.btn.danger { background: var(--bad); color: #fff; }
.btn.disabled { opacity: .45; cursor: default; pointer-events: none; }
.pager { display: flex; align-items: center; gap: 12px; justify-content: center; margin: 14px 0; }
.pager .mono { color: var(--muted); }
main { padding: 22px; max-width: 1100px; margin: 0 auto; }
h1 { font-size: 20px; margin: 0 0 16px; }
h2 { font-size: 15px; color: var(--muted); text-transform: uppercase; letter-spacing: .6px; margin: 24px 0 10px; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .5px; }
tbody tr:hover { background: var(--panel); }
td.mono, .mono { font-family: var(--mono); }

.tag { display: inline-block; padding: 1px 8px; border-radius: 10px; font-size: 12px; font-weight: 600; }
.tag.sprt { background: #16324f; color: #8cc0ff; }
.tag.selftest { background: #243b2f; color: #8fe3b0; }
.tag.gauntlet { background: #3a2a4f; color: #c79cff; }
.status { font-weight: 600; }
.status.active   { color: var(--accent); }
.status.pending  { color: var(--muted); }
.status.finished { color: var(--good); }
.status.stopped  { color: var(--warn); }
.status.failed   { color: var(--bad); }
.game-cell { padding-top: 0; border-top: 0; }
.pgn {
  white-space: pre-wrap;
  overflow-x: auto;
  margin: 10px 0 0;
  padding: 12px;
  border-radius: 6px;
  background: #0d1117;
  color: var(--text);
}
.viewer {
  display: grid;
  grid-template-columns: minmax(220px, 320px) 1fr;
  gap: 16px;
  align-items: start;
  margin-top: 12px;
}
.board {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  width: min(100%, 320px);
  aspect-ratio: 1;
  border: 1px solid var(--border);
}
.square {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1;
  font-size: clamp(20px, 6vw, 34px);
  line-height: 1;
}
.square.light { background: #d8c7a3; color: #111; }
.square.dark { background: #6d8652; color: #111; }
.viewer-controls {
  display: flex;
  gap: 6px;
  margin-bottom: 10px;
}
.viewer-controls .btn {
  min-width: 38px;
  padding: 5px 8px;
}
.viewer-ply { margin-bottom: 8px; }
.viewer-fen {
  color: var(--muted);
  overflow-wrap: anywhere;
}
@media (max-width: 760px) {
  .viewer { grid-template-columns: 1fr; }
}
.result.accepted { color: var(--good); }
.result.rejected, .result.inconclusive { color: var(--bad); }
.pos { color: var(--good); } .neg { color: var(--bad); }

.bar { position: relative; height: 8px; background: var(--panel2); border-radius: 5px; overflow: hidden; }
.bar > span { position: absolute; left: 0; top: 0; bottom: 0; background: var(--accent); }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; }
.card .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .5px; }
.card .value { font-size: 24px; font-weight: 700; margin-top: 4px; font-family: var(--mono); }
.card .sub { color: var(--muted); font-size: 12px; margin-top: 2px; }

.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 18px; margin-top: 14px; }
.kv { display: grid; grid-template-columns: 160px 1fr; gap: 6px 14px; }
.kv .k { color: var(--muted); }

form .field { margin-bottom: 14px; }
form label { display: block; color: var(--muted); margin-bottom: 4px; font-size: 13px; }
input, select, textarea {
  width: 100%; padding: 8px 10px; background: var(--panel2); color: var(--fg);
  border: 1px solid var(--border); border-radius: 6px; font: inherit;
}
textarea { font-family: var(--mono); min-height: 70px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.row3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }
.hint { color: var(--muted); font-size: 12px; margin-top: 3px; }
.error { background: #3a1d1d; border: 1px solid var(--bad); color: #ffb4ae; padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; }
.empty { color: var(--muted); padding: 30px; text-align: center; }
.penta { display: flex; gap: 6px; font-family: var(--mono); font-size: 12px; }
.penta div { flex: 1; text-align: center; background: var(--panel2); border-radius: 6px; padding: 6px 2px; }
.penta div small { display: block; color: var(--muted); }
.dot { display:inline-block; width:8px; height:8px; border-radius:50%; margin-right:6px; }
.dot.on { background: var(--good); } .dot.off { background: var(--muted); }