:root {
  --bg: #f4f6f9;
  --card: #fff;
  --text: #152033;
  --muted: #5b6472;
  --border: #d9dee7;
  --accent: #164b95;
  --ok: #0f7a54;
  --err: #b02318;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.45;
}
a { color: var(--accent); text-decoration: none; }
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1.25rem;
  background: #0b2a54;
  color: #dce6f5;
}
.topbar a, .topbar .linkish { color: #dce6f5; }
.brand { font-weight: 700; letter-spacing: 0.02em; }
.topbar nav { display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; }
.container { max-width: 1100px; margin: 1.5rem auto; padding: 0 1rem; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}
h1 { font-size: 1.35rem; margin: 0 0 1rem; }
h2 { font-size: 1.05rem; margin: 0 0 0.75rem; }
.muted { color: var(--muted); }
.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.stat { font-size: 1.6rem; font-weight: 700; }
label { display: block; font-weight: 600; margin-bottom: 0.35rem; }
input, select, textarea {
  width: 100%;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 0.85rem;
  font: inherit;
}
button, .btn {
  display: inline-block;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  padding: 0.55rem 0.9rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
button.secondary, .btn.secondary { background: #5b6472; }
.alert { padding: 0.75rem 1rem; border-radius: 8px; margin-bottom: 1rem; }
.alert.ok { background: #e4f5ec; color: var(--ok); }
.alert.err { background: #fbe8e7; color: var(--err); }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 0.55rem 0.4rem; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.mono { font-family: ui-monospace, Consolas, monospace; font-size: 12px; }
.inline { display: inline; margin: 0; }
.linkish { background: transparent; border: 0; color: inherit; cursor: pointer; font: inherit; padding: 0; }
.badge {
  display: inline-block;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  background: #eef0f3;
  font-size: 11px;
  font-weight: 700;
}
.badge-ok { background: #e4f5ec; color: var(--ok); }
.badge-warn { background: #fcf0dc; color: #9a5b00; }
.form-grid {
  display: grid;
  gap: 0 1rem;
  grid-template-columns: 1fr 1fr;
}
@media (max-width: 720px) {
  .form-grid { grid-template-columns: 1fr; }
}
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}
a.btn {
  text-decoration: none;
  line-height: 1.2;
}
.mode-pick {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
}
.mode-pick legend {
  font-weight: 700;
  padding: 0 0.35rem;
}
.radio-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
  margin-bottom: 0.45rem;
}
.radio-row input { width: auto; margin: 0; }
.panel { margin-top: 0.25rem; }
.keybox {
  background: #0b1220;
  color: #e8eef8;
  padding: 0.85rem 1rem;
  border-radius: 8px;
  word-break: break-all;
}