:root {
  --bg: #0f1419;
  --card: #1a2332;
  --text: #e7ecf3;
  --muted: #8b9cb3;
  --accent: #ff6b35;
  --ok: #3ecf8e;
  --err: #f87171;
}
* { box-sizing: border-box; }
body {
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  margin: 0;
  min-height: 100vh;
  line-height: 1.5;
}
header {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid #2a3544;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}
h1 { font-size: 1.15rem; font-weight: 600; margin: 0; }
.sub { color: var(--muted); font-size: 0.875rem; }
main { padding: 1.5rem; max-width: 1100px; margin: 0 auto; }
.row { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; margin-bottom: 1rem; }
label { color: var(--muted); font-size: 0.8rem; }
input[type="password"], input[type="text"], input[type="number"], input[type="file"] {
  background: var(--card);
  border: 1px solid #2a3544;
  color: var(--text);
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  min-width: 220px;
}
button {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
}
button.secondary { background: #334155; }
button:disabled { opacity: 0.5; cursor: not-allowed; }
table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
th, td { text-align: left; padding: 0.6rem 0.5rem; border-bottom: 1px solid #2a3544; }
th { color: var(--muted); font-weight: 500; }
tr:hover td { background: rgba(255,255,255,0.03); }
.msg { padding: 0.75rem; border-radius: 6px; margin-bottom: 1rem; font-size: 0.875rem; }
.msg.ok { background: rgba(62, 207, 142, 0.15); color: var(--ok); }
.msg.err { background: rgba(248, 113, 113, 0.12); color: var(--err); }
pre {
  background: var(--card);
  padding: 1rem;
  border-radius: 8px;
  overflow: auto;
  font-size: 0.75rem;
  max-height: 320px;
}
a { color: var(--accent); }
.app-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  align-items: center;
  padding: 0.65rem 1.5rem;
  border-bottom: 1px solid #2a3544;
  background: rgba(0,0,0,0.2);
}
.app-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
}
.app-nav a:hover { color: var(--text); }
.app-nav a.active {
  color: var(--accent);
}
.page-card {
  margin-bottom: 1.25rem;
  background: var(--card);
  border-radius: 8px;
  border: 1px solid #2a3544;
  padding: 1rem 1.25rem;
}
.page-card h2 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  font-weight: 600;
}
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }
@media (max-width: 720px) { .grid2 { grid-template-columns: 1fr; } }
.field label { display: block; margin-bottom: 0.25rem; }
.field input, .field textarea, .field select { width: 100%; min-width: 0; }
.field textarea { min-height: 4rem; font-family: ui-monospace, monospace; font-size: 0.8rem; }
.field select {
  background: var(--card);
  color: var(--text);
  border: 1px solid #2a3544;
  padding: 0.5rem;
  border-radius: 6px;
}
.hint { font-size: 0.75rem; color: var(--muted); margin-top: 0.2rem; }
.chk { display: flex; align-items: center; gap: 0.4rem; font-size: 0.8rem; color: var(--muted); margin-top: 0.35rem; }