:root {
  --bg: #0f1115;
  --card: #1a1d24;
  --fg: #e5e7eb;
  --muted: #8a8f9c;
  --accent: #4ade80;
  --warn: #fbbf24;
  --err: #f87171;
  --border: #2a2f3a;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font: 14px/1.4 system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--fg);
}
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 24px;
  border-bottom: 1px solid #222;
}
header h1 { margin: 0; font-size: 18px; }
header h1 a { color: var(--fg); text-decoration: none; }
header nav { display: flex; gap: 16px; align-items: center; }
header nav a { color: var(--muted); text-decoration: none; }
header nav a:hover { color: var(--fg); }
header nav form.inline { display: inline; margin: 0; }
header nav button.link {
  background: none; border: none; color: var(--muted); cursor: pointer;
  font: inherit; padding: 0;
}
header nav button.link:hover { color: var(--err); }

main { padding-bottom: 32px; }

.card {
  margin: 16px 24px;
  padding: 16px 20px;
  background: var(--card);
  border-radius: 8px;
}
.card.centered { max-width: 460px; margin-left: auto; margin-right: auto; margin-top: 60px; }
.card h2 { margin: 0 0 12px 0; font-size: 14px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; }

.label { margin: 0; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; }
.version { margin: 4px 0 8px 0; font-size: 36px; font-weight: 700; color: var(--accent); }
.muted { color: var(--muted); }
.muted.small { font-size: 12px; }

table { width: 100%; border-collapse: collapse; }
th, td { padding: 8px 6px; text-align: left; border-bottom: 1px solid #222; }
th { color: var(--muted); font-weight: 500; font-size: 12px; text-transform: uppercase; }

code { background: #0a0c10; padding: 1px 6px; border-radius: 3px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.status { font-family: monospace; }
.status-active, .status-success { color: var(--accent); }
.status-inactive, .status-failed { color: var(--err); }
.status-rolled_back, .status-unknown { color: var(--warn); }

button {
  background: var(--border);
  color: var(--fg);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 4px;
  cursor: pointer;
  font: inherit;
}
button:hover { background: #3a3f4a; }
button.primary {
  background: var(--accent);
  color: #0a0c10;
  font-weight: 600;
  padding: 8px 16px;
  margin-top: 12px;
}
button.primary:hover { background: #65e090; }

form label {
  display: block;
  margin: 14px 0 0 0;
  color: var(--muted);
  font-size: 13px;
}
form label .field-title { font-weight: 600; color: var(--fg); display: block; margin-bottom: 4px; }
form input[type=text], form input[type=password] {
  display: block;
  width: 100%;
  padding: 8px 10px;
  margin-top: 4px;
  background: #0a0c10;
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 4px;
  font: 14px monospace;
}
form input:focus { outline: 1px solid var(--accent); border-color: var(--accent); }

.flash {
  margin: 12px 24px;
  padding: 10px 14px;
  border-radius: 6px;
  border: 1px solid var(--border);
}
.flash-success { border-color: var(--accent); color: var(--accent); }
.flash-error   { border-color: var(--err); color: var(--err); }
.flash-info    { border-color: var(--muted); color: var(--muted); }