:root {
  --bg: #0f1419;
  --card: #1a222d;
  --text: #e7eef7;
  --muted: #8b9bb0;
  --line: #2a3544;
  --accent: #3d9cf0;
  --ok: #3cbe7d;
  --err: #e35d6a;
  --warn: #d4a24c;
  --font: "Segoe UI", system-ui, sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font);
  background: radial-gradient(1200px 600px at 10% -10%, #1a2a3d, var(--bg));
  color: var(--text);
  min-height: 100vh;
}
.top, .foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.9rem 1.4rem;
  border-bottom: 1px solid var(--line);
}
.foot { border-bottom: 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.85rem; }
.brand { font-weight: 700; letter-spacing: 0.02em; }
.meta { display: flex; gap: 0.8rem; align-items: center; }
.badge.lock {
  background: #3a2a14;
  color: var(--warn);
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.8rem;
}
main { padding: 1.2rem; max-width: 1100px; margin: 0 auto; }
.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}
.card {
  background: color-mix(in srgb, var(--card) 92%, black);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem 1.1rem;
}
.card.span2 { grid-column: span 2; }
.card.login { max-width: 420px; margin: 3rem auto; }
h1, h2 { margin: 0 0 0.7rem; font-size: 1.15rem; }
.muted { color: var(--muted); font-size: 0.92rem; }
.stack { display: grid; gap: 0.65rem; }
label { display: grid; gap: 0.25rem; font-size: 0.9rem; }
input, select, button, .btn {
  font: inherit;
  padding: 0.55rem 0.7rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #101820;
  color: var(--text);
}
button, .btn {
  cursor: pointer;
  background: #243142;
  text-decoration: none;
  display: inline-block;
  text-align: center;
}
button.primary { background: #1f4d7a; border-color: #2f6ea8; }
button.danger { background: #5a2430; border-color: #8a3545; }
.actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.4rem; }
fieldset {
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 0.35rem;
}
.row3 { grid-template-columns: repeat(3, 1fr); }
.on { color: var(--ok); }
.off { color: var(--muted); }
.flash {
  padding: 0.65rem 0.8rem;
  border-radius: 8px;
  margin-bottom: 0.8rem;
}
.flash.ok { background: #163526; color: #b6f0d0; }
.flash.err { background: #3a1a20; color: #ffc1c8; }
.log {
  background: #0b1016;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.7rem;
  max-height: 280px;
  overflow: auto;
  font-size: 0.8rem;
  white-space: pre-wrap;
}
.inline { display: inline; margin: 0; }
.or { text-align: center; color: var(--muted); }
@media (max-width: 800px) {
  .grid, .row3 { grid-template-columns: 1fr; }
  .card.span2 { grid-column: span 1; }
}