:root {
  --bg: #0f1419;
  --panel: #1a222c;
  --text: #e8eef5;
  --muted: #93a1b3;
  --accent: #2f6fed;
  --danger: #d64545;
  --ok: #2f9e64;
  --border: #2a3542;
  --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%, #1c2a44, transparent), var(--bg);
  color: var(--text);
  min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
.wrap { max-width: 920px; margin: 0 auto; padding: 24px; }
.nav {
  display: flex; gap: 16px; align-items: center; justify-content: space-between;
  margin-bottom: 24px; padding-bottom: 12px; border-bottom: 1px solid var(--border);
}
.nav .links { display: flex; gap: 14px; }
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 16px;
}
h1, h2 { margin: 0 0 12px; font-weight: 650; }
.muted { color: var(--muted); font-size: 0.95rem; }
label { display: block; margin: 12px 0 6px; font-size: 0.9rem; color: var(--muted); }
input, select, textarea {
  width: 100%;
  background: #10161d;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 10px 12px;
}
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
button, .btn {
  border: 0; border-radius: 8px; padding: 10px 14px; cursor: pointer;
  background: var(--accent); color: white; font-weight: 600;
}
button.secondary { background: #314257; }
button.danger { background: var(--danger); }
button:disabled { opacity: 0.5; cursor: not-allowed; }
.badge {
  display: inline-block; padding: 4px 10px; border-radius: 999px;
  background: #243247; font-size: 0.8rem;
}
.badge.open { background: rgba(47,158,100,.2); color: #7ddea8; }
.badge.close, .badge.created, .badge.connecting { background: rgba(214,69,69,.15); color: #f0a0a0; }
#qr img { max-width: 280px; background: white; padding: 12px; border-radius: 8px; }
.login-box { max-width: 400px; margin: 10vh auto; }
.error { color: #ff8e8e; margin-top: 10px; }
.ok { color: #7ddea8; margin-top: 10px; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
@media (max-width: 700px) { .row { grid-template-columns: 1fr; } }