:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel-2: #1e222b;
  --line: #2a2f3a;
  --text: #e6e8ee;
  --muted: #8b93a7;
  --accent: #6c8cff;
  --ok: #3ecf8e;
  --warn: #f0b429;
  --err: #ff6b6b;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 14px/1.5 "Segoe UI", system-ui, -apple-system, "Microsoft YaHei", sans-serif;
}
.hidden { display: none !important; }
.muted { color: var(--muted); }
.error { color: var(--err); min-height: 18px; margin: 4px 0 0; }
header {
  display: flex; align-items: center; gap: 18px; padding: 12px 22px;
  border-bottom: 1px solid var(--line); background: var(--panel); position: sticky; top: 0; z-index: 5;
}
.brand { font-weight: 600; letter-spacing: .2px; }
.tag { font-size: 11px; color: var(--muted); border: 1px solid var(--line); padding: 1px 6px; border-radius: 10px; }
nav { display: flex; gap: 6px; flex: 1; flex-wrap: wrap; }
button {
  font: inherit; cursor: pointer; border-radius: 8px; border: 1px solid var(--line);
  background: var(--panel-2); color: var(--text); padding: 6px 12px;
}
button:hover { border-color: #3b4250; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.danger { color: var(--err); }
button.ghost { background: transparent; }
button.tab.active { background: var(--panel-2); border-color: var(--accent); color: #fff; }
button.small { padding: 3px 8px; font-size: 12px; }
main { padding: 22px; max-width: 1280px; margin: 0 auto; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 16px; }
.grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; }
.stat .label { color: var(--muted); font-size: 12px; }
.stat .value { font-size: 24px; font-weight: 600; margin-top: 4px; }
.section { margin-bottom: 18px; }
.section-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.section-head h2 { margin: 0; font-size: 16px; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 500; font-size: 12px; text-transform: none; }
tr:hover td { background: rgba(255,255,255,.02); }
.badge { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 11px; border: 1px solid var(--line); }
.badge.ok { color: var(--ok); border-color: rgba(62,207,142,.4); }
.badge.warn { color: var(--warn); border-color: rgba(240,180,41,.4); }
.badge.err { color: var(--err); border-color: rgba(255,107,107,.4); }
.badge.muted { color: var(--muted); }
.row-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.login { display: grid; place-items: center; min-height: 100vh; }
.login-card { width: 340px; display: grid; gap: 12px; }
.login-card h1 { font-size: 18px; margin: 0; }
input, select, textarea {
  width: 100%; font: inherit; color: var(--text); background: var(--panel-2);
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px;
}
textarea { min-height: 120px; resize: vertical; font-family: ui-monospace, Consolas, monospace; font-size: 12px; }
label { display: block; font-size: 12px; color: var(--muted); margin: 10px 0 4px; }
.modal { position: fixed; inset: 0; background: rgba(0,0,0,.6); display: grid; place-items: center; z-index: 20; padding: 20px; }
.modal-card { width: min(620px, 100%); max-height: 88vh; overflow: auto; }
.modal-head { display: flex; justify-content: space-between; align-items: center; }
.modal-head h2 { margin: 0; font-size: 16px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 14px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 14px; }
.toast {
  position: fixed; right: 20px; bottom: 20px; background: var(--panel-2); border: 1px solid var(--line);
  padding: 10px 14px; border-radius: 10px; z-index: 30; max-width: 420px;
}
.toast.err { border-color: var(--err); }
.mono { font-family: ui-monospace, Consolas, monospace; font-size: 12px; }
.nowrap { white-space: nowrap; }
@media (max-width: 860px) {
  .form-grid { grid-template-columns: 1fr; }
  header { flex-wrap: wrap; }
}