:root {
  --bg: #0f1420;
  --card: #1a2233;
  --text: #e8edf6;
  --muted: #94a3b8;
  --accent: #4f8cff;
  --ok: #34d399;
  --error: #f87171;
  --run: #fbbf24;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 22px;
  background: var(--card);
  border-bottom: 1px solid #2b3852;
}
header h1 { font-size: 1.15rem; margin: 0; }
nav a { color: var(--accent); text-decoration: none; }
main { max-width: 980px; margin: 0 auto; padding: 22px 16px 60px; }
.card {
  background: var(--card);
  border: 1px solid #2b3852;
  border-radius: 12px;
  padding: 18px 22px;
  margin-bottom: 22px;
}
h2 { margin-top: 0.2em; }
.muted { color: var(--muted); }
.error { color: var(--error); }
.ok { color: var(--ok); }
.run { color: var(--run); }
.signal { font-size: 1.25rem; }
.disclaimer { color: var(--muted); font-size: 0.85rem; margin-top: 1.4em; }
label { display: block; margin: 6px 0; }
input, select {
  width: 100%;
  padding: 9px 11px;
  border-radius: 8px;
  border: 1px solid #35455f;
  background: #101827;
  color: var(--text);
  font-size: 1rem;
}
.row { display: flex; gap: 14px; flex-wrap: wrap; }
.row label { flex: 1 1 180px; }
fieldset {
  border: 1px solid #2b3852;
  border-radius: 8px;
  margin: 12px 0;
}
label.check { display: inline-block; margin: 4px 14px 4px 0; }
label.check input { width: auto; }
button, .btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border: 0;
  border-radius: 8px;
  padding: 10px 18px;
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
  margin-top: 8px;
}
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid #2b3852; font-size: 0.95rem; }
pre.log, pre.decision {
  background: #101827;
  border: 1px solid #2b3852;
  border-radius: 8px;
  padding: 12px;
  overflow-x: auto;
  white-space: pre-wrap;
}
.report h1, .report h2, .report h3 { color: var(--text); }
.report table { margin: 12px 0; }
.report code { background: #101827; padding: 1px 5px; border-radius: 4px; }
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-card {
  background: var(--card);
  border: 1px solid #2b3852;
  border-radius: 14px;
  padding: 32px 34px;
  width: min(420px, 92vw);
}