:root {
  --bg: #f0f4fa;
  --card: #ffffff;
  --text: #10223d;
  --muted: #5f7192;
  --line: #d8e2f0;
  --cta: #f4a31d;
  --ok: #0c8a5a;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: "Segoe UI", Tahoma, sans-serif; color: var(--text); background: var(--bg); }
header { background: #0f223f; color: #eff5ff; border-bottom: 1px solid #27476d; }
.container { width: min(1120px, 92vw); margin: 0 auto; }
.bar { padding: 0.9rem 0; display: flex; justify-content: space-between; align-items: center; }
.link { color: #cfe0ff; margin-right: 0.7rem; text-decoration: none; }
.layout { padding: 1.3rem 0 2rem; }
.panel { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 1rem; }
.grid { display: grid; gap: 0.9rem; }
.full { grid-column: 1 / -1; }
label { display: grid; gap: 0.35rem; margin-bottom: 0.7rem; }
input { border: 1px solid #bfd0e6; border-radius: 10px; padding: 0.62rem; }
.btn {
  border: 0;
  border-radius: 10px;
  padding: 0.62rem 0.9rem;
  font-weight: 700;
  cursor: pointer;
}
.btn-primary { background: var(--cta); }
.btn-outline { border: 1px solid #8ca3c3; background: transparent; }
.actions { margin-top: 0.75rem; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.message { min-height: 1.1rem; color: var(--ok); font-size: 0.9rem; }
.hidden { display: none; }
.kv { display: grid; gap: 0.35rem; font-size: 0.93rem; color: var(--muted); }
ul { margin: 0.7rem 0 0; padding-left: 1rem; color: var(--muted); }
pre {
  margin: 0.5rem 0 0;
  max-height: 380px;
  overflow: auto;
  background: #0f223f;
  color: #dceaff;
  border-radius: 10px;
  padding: 0.8rem;
  font-size: 0.82rem;
}
@media (min-width: 960px) {
  .grid { grid-template-columns: 1fr 1fr; }
}