:root {
  --bg: #0f1720;
  --panel: #161f2c;
  --panel-2: #1d2836;
  --border: #2a3644;
  --text: #e6edf3;
  --muted: #8b98a8;
  --accent: #4f8cff;
  --accent-2: #2f6fe0;
  --good: #3fb950;
  --warn: #d29922;
  --danger: #f85149;
  --radius: 8px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.brand { color: var(--text); text-decoration: none; font-weight: 700; font-size: 1.1rem; }
.brand span { color: var(--muted); font-weight: 400; font-size: 0.85rem; margin-left: 6px; }

.topbar nav a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 20px;
  font-size: 0.95rem;
}
.topbar nav a:hover { color: var(--text); }

.container { max-width: 1100px; margin: 0 auto; padding: 24px; }

h1 { font-size: 1.5rem; margin: 0 0 4px; }
h2 { font-size: 1.15rem; margin: 24px 0 10px; }
h3 { font-size: 1rem; margin: 16px 0 8px; color: var(--muted); font-weight: 600; }

.breadcrumb { color: var(--muted); font-size: 0.85rem; margin-bottom: 14px; }
.breadcrumb a { color: var(--muted); }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-bottom: 16px;
}

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }

.list-item {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  text-decoration: none;
  color: var(--text);
  display: block;
  transition: border-color .15s;
}
.list-item:hover { border-color: var(--accent); }
.list-item .title { font-weight: 600; }
.list-item .sub { color: var(--muted); font-size: 0.85rem; margin-top: 4px; }

table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: .03em; }
tr:hover td { background: rgba(255,255,255,0.02); }

.code { font-family: "Cascadia Code", Consolas, monospace; color: var(--accent); }

form.inline { display: flex; flex-wrap: wrap; gap: 10px; align-items: end; }
.field { display: flex; flex-direction: column; gap: 4px; }
.field label { font-size: 0.78rem; color: var(--muted); }
input, select, textarea {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 7px 10px;
  font-size: 0.9rem;
  font-family: inherit;
}
textarea { resize: vertical; min-height: 40px; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); }

button {
  background: var(--accent);
  border: none;
  color: white;
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
}
button:hover { background: var(--accent-2); }
button.secondary { background: var(--panel-2); border: 1px solid var(--border); color: var(--text); }
button.secondary:hover { border-color: var(--accent); }
button.danger { background: transparent; color: var(--danger); padding: 4px 8px; }
button.danger:hover { background: rgba(248,81,73,0.1); }
button.small { padding: 4px 10px; font-size: 0.8rem; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--muted);
}
.badge.ok { color: var(--good); border-color: var(--good); }

.empty { color: var(--muted); font-style: italic; padding: 20px 0; }

.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  padding: 10px 16px;
  border-radius: 6px;
  transition: opacity .2s;
}
.toast.hidden { opacity: 0; pointer-events: none; }
.toast.error { border-color: var(--danger); color: var(--danger); }

.tag-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.io-type-DI { color: #7ee787; }
.io-type-DO { color: #79c0ff; }
.io-type-AI { color: #d2a8ff; }
.io-type-AO { color: #ffa657; }
.io-type-UI { color: #f0e68c; }

.actions { display: flex; gap: 8px; }