:root {
  --bg: #0f1626;
  --card: #1a2440;
  --card2: #223052;
  --text: #e8eefc;
  --muted: #93a1c4;
  --accent: #7fd4ff;
  --accent2: #ffb35c;
  --good: #6fe3a5;
  --bad: #ff7d7d;
  --radius: 14px;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  max-width: 640px; margin: 0 auto; padding: 0 14px 90px;
  min-height: 100vh;
}
.app-header { position: sticky; top: 0; z-index: 5; background: var(--bg); padding: 14px 0 0; }
.app-header h1 { margin: 0 0 10px; font-size: 1.5rem; }
.tabs { display: flex; gap: 6px; border-bottom: 1px solid var(--card2); padding-bottom: 8px; }
.tabs button {
  flex: 1; padding: 10px 4px; border: 0; border-radius: 10px;
  background: transparent; color: var(--muted); font-size: .95rem; cursor: pointer;
}
.tabs button.active { background: var(--card2); color: var(--text); font-weight: 600; }
#view { padding-top: 14px; }
.card {
  background: var(--card); border-radius: var(--radius);
  padding: 14px; margin-bottom: 12px;
}
.card h2 { margin: 0 0 10px; font-size: 1.05rem; }
.card h3 { margin: 12px 0 8px; font-size: .95rem; color: var(--muted); }
.muted { color: var(--muted); font-size: .85rem; }
.big-num { font-size: 2.6rem; font-weight: 700; }
.row { display: flex; align-items: center; gap: 10px; }
.row.between { justify-content: space-between; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
input[type="text"], input[type="number"], input[type="url"] {
  width: 100%; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--card2);
  background: var(--bg); color: var(--text); font-size: 1rem;
}
button.btn {
  padding: 10px 16px; border-radius: 10px; border: 0; cursor: pointer;
  background: var(--accent); color: #06283d; font-weight: 700; font-size: .95rem;
}
button.btn.secondary { background: var(--card2); color: var(--text); }
button.btn.warn { background: transparent; color: var(--bad); border: 1px solid var(--bad); }
button.btn:disabled { opacity: .5; cursor: default; }
.code-big {
  font-size: 2.2rem; letter-spacing: .35em; font-weight: 800; color: var(--accent);
  text-align: center; padding: 12px; background: var(--bg); border-radius: 10px;
  border: 1px dashed var(--accent); margin: 10px 0;
}
.bars { display: flex; align-items: flex-end; gap: 6px; height: 120px; margin-top: 8px; }
.bar-group { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 2px; height: 100%; justify-content: flex-end; }
.bar-cols { display: flex; gap: 2px; align-items: flex-end; height: 100px; }
.bar { width: 14px; border-radius: 4px 4px 0 0; background: var(--accent); min-height: 3px; }
.bar.them { background: var(--accent2); }
.bar-label { font-size: .68rem; color: var(--muted); }
.legend { display: flex; gap: 14px; font-size: .8rem; color: var(--muted); margin-top: 6px; }
.dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 4px; }
.progress { height: 10px; background: var(--bg); border-radius: 6px; overflow: hidden; margin-top: 6px; }
.progress > div { height: 100%; background: var(--good); border-radius: 6px; }
table.score { width: 100%; border-collapse: collapse; font-size: .9rem; }
table.score th, table.score td { padding: 6px 4px; text-align: right; border-bottom: 1px solid var(--card2); }
table.score th:first-child, table.score td:first-child { text-align: left; }
.winner { color: var(--good); font-weight: 700; }
.toast {
  position: fixed; left: 50%; bottom: 70px; transform: translateX(-50%);
  background: var(--card2); color: var(--text); padding: 10px 18px; border-radius: 10px;
  font-size: .9rem; z-index: 20; max-width: 90%;
}
.toast.hidden { display: none; }
.toast.error { background: #5a1f28; }
.app-footer { text-align: center; color: var(--muted); font-size: .75rem; padding: 18px 0 8px; }
.field { margin-bottom: 10px; }
.field label { display: block; font-size: .8rem; color: var(--muted); margin-bottom: 4px; }
.challenge { border: 1px solid var(--card2); border-radius: 10px; padding: 10px; margin-bottom: 10px; }
.challenge .title { font-weight: 700; margin-bottom: 6px; }
.pill { display: inline-block; font-size: .72rem; padding: 2px 10px; border-radius: 20px; background: var(--card2); color: var(--muted); }
.pill.open { background: #123f2b; color: var(--good); }
.mech { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--card2); }
.mech:last-child { border-bottom: 0; }
.mech .desc { font-size: .85rem; color: var(--muted); }
.copy-row { display: flex; gap: 8px; }
.copy-row input { flex: 1; font-family: monospace; font-size: .8rem; }
svg.chart { width: 100%; height: 110px; display: block; }