* { box-sizing: border-box; }
body {
  font-family: system-ui, -apple-system, Segoe UI, sans-serif;
  margin: 0;
  background: #0f172a;
  color: #e2e8f0;
}
header {
  background: #1e293b;
  padding: 16px 24px;
  border-bottom: 1px solid #334155;
}
header h1 { margin: 0 0 12px 0; font-size: 18px; font-weight: 600; }
header nav button {
  background: transparent;
  border: 1px solid #334155;
  color: #cbd5e1;
  padding: 6px 14px;
  margin-right: 6px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
}
header nav button.active {
  background: #3b82f6;
  border-color: #3b82f6;
  color: white;
}
main { padding: 24px; max-width: 1400px; margin: 0 auto; }
.tab { display: none; }
.tab.active { display: block; }
h2 { font-size: 16px; margin-top: 0; }
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
  font-size: 13px;
}
th, td {
  border: 1px solid #334155;
  padding: 6px 10px;
  text-align: left;
  vertical-align: top;
}
th { background: #1e293b; font-weight: 500; color: #94a3b8; }
tr:hover td { background: #1e293b; }
button, input, select {
  font-family: inherit;
  font-size: 13px;
  background: #1e293b;
  color: #e2e8f0;
  border: 1px solid #334155;
  padding: 6px 10px;
  border-radius: 4px;
}
button { cursor: pointer; }
button:hover { background: #334155; }
button[type=submit], #btn-connect-ml { background: #3b82f6; border-color: #3b82f6; }
button[type=submit]:hover, #btn-connect-ml:hover { background: #2563eb; }
form label { display: block; margin: 8px 0; }
form label input, form label select { width: 320px; margin-left: 8px; }
form.inline { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin: 12px 0; }
form.inline label { display: flex; align-items: center; margin: 0; }
form.inline label input, form.inline label select { width: auto; }
.status { padding: 8px 12px; border-radius: 4px; margin: 12px 0; font-size: 13px; }
.status.ok { background: #064e3b; color: #a7f3d0; }
.status.warn { background: #7c2d12; color: #fed7aa; }
.status.err { background: #7f1d1d; color: #fecaca; }
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 500;
}
.badge-queued { background: #475569; color: #e2e8f0; }
.badge-running { background: #1e40af; color: #dbeafe; }
.badge-completed { background: #065f46; color: #a7f3d0; }
.badge-failed { background: #7f1d1d; color: #fecaca; }
.badge-active { background: #064e3b; color: #a7f3d0; }
.badge-activating { background: #1e40af; color: #dbeafe; }
.badge-ready { background: #065f46; color: #a7f3d0; }
.badge-skipped { background: #475569; color: #e2e8f0; }
.badge-blocked { background: #7c2d12; color: #fed7aa; }
.badge-resolving_deps, .badge-creating, .badge-transforming, .badge-created_paused { background: #1e40af; color: #dbeafe; }
.inline-edit {
  background: transparent;
  border: none;
  color: #93c5fd;
  cursor: pointer;
  padding: 0;
  font-size: 12px;
}
small { color: #94a3b8; font-weight: 400; font-family: ui-monospace, monospace; }
#diff-detail { margin-top: 24px; border-top: 1px solid #334155; padding-top: 16px; }
#ruleset-detail, #version-body-view { margin-top: 24px; border-top: 1px solid #334155; padding-top: 16px; }
textarea {
  font-family: ui-monospace, monospace;
  background: #0f172a;
  color: #e2e8f0;
  border: 1px solid #334155;
  padding: 8px;
  border-radius: 4px;
  width: 100%;
  max-width: 900px;
}
pre {
  background: #0f172a;
  color: #a7f3d0;
  padding: 12px;
  border: 1px solid #334155;
  border-radius: 4px;
  overflow: auto;
  max-height: 400px;
  font-size: 12px;
}
#version-feedback { margin-left: 12px; font-size: 12px; }
#version-feedback.ok { color: #a7f3d0; }
#version-feedback.err { color: #fecaca; }