:root {
  --bg: #0f1115;
  --panel: #171a21;
  --border: #2a2e38;
  --text: #e6e8ec;
  --muted: #8b93a3;
  --accent: #5b8cff;
  --danger: #ff5b6e;
  --ok: #4cd17a;
  --warn: #f2b84b;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.45;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

header.topnav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.9rem 1.5rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

header.topnav .brand { font-weight: 700; margin-right: 1rem; }
header.topnav nav { display: flex; gap: 1.2rem; flex: 1; }
header.topnav nav a { color: var(--muted); }
header.topnav nav a.active { color: var(--text); font-weight: 600; }

main { max-width: 1100px; margin: 0 auto; padding: 1.5rem; }

.center-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
}

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.02em; }
tr:hover td { background: #1b1f28; }

input, select, textarea, button {
  font: inherit;
  background: #12141a;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.45rem 0.6rem;
}

button {
  cursor: pointer;
  background: var(--accent);
  color: #0b0e14;
  font-weight: 600;
  border: none;
}
button:hover { filter: brightness(1.08); }
button.secondary { background: #262b36; color: var(--text); }
button.danger { background: var(--danger); color: #1a0a0d; }
button:disabled { opacity: 0.5; cursor: not-allowed; }

.badge { display: inline-block; padding: 0.1rem 0.5rem; border-radius: 999px; font-size: 0.78rem; font-weight: 600; }
.badge.ok { background: rgba(76,209,122,0.15); color: var(--ok); }
.badge.warn { background: rgba(242,184,75,0.15); color: var(--warn); }
.badge.danger { background: rgba(255,91,110,0.15); color: var(--danger); }
.badge.muted { background: rgba(139,147,163,0.15); color: var(--muted); }

.muted { color: var(--muted); }
.error { color: var(--danger); }

.row { display: flex; gap: 0.6rem; align-items: center; }
.row.wrap { flex-wrap: wrap; }
.stack { display: flex; flex-direction: column; gap: 0.6rem; }

pre.log {
  background: #0b0d12;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  max-height: 420px;
  overflow: auto;
  white-space: pre-wrap;
  font-size: 0.85rem;
}