:root {
  --bg: #070b14;
  --panel: #0d1424;
  --line: rgba(148, 163, 184, 0.14);
  --text: #e8eefc;
  --muted: #8b97b3;
  --accent: #2dd4bf;
  --accent-dim: rgba(45, 212, 191, 0.14);
  --danger: #fb7185;
  --warn: #fbbf24;
  --ok: #34d399;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body {
  margin: 0; min-height: 100%;
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(900px 420px at 10% -10%, rgba(45, 212, 191, 0.12), transparent 60%),
    radial-gradient(700px 360px at 100% 0%, rgba(34, 211, 238, 0.08), transparent 55%),
    var(--bg);
}

.gate {
  min-height: 100vh; display: grid; place-items: center; padding: 24px;
}
.gate-card {
  width: min(400px, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 28px;
}
.gate-card h1 { margin: 12px 0 4px; font-size: 28px; letter-spacing: 0.02em; }
.sub { margin: 0 0 22px; color: var(--muted); font-size: 13px; }
.mark {
  width: 40px; height: 44px; border-radius: 10px 10px 14px 14px;
  background: linear-gradient(180deg, #5eead4, #0f766e);
  position: relative;
}
.mark::after {
  content: ""; position: absolute; left: 12px; top: 13px;
  width: 14px; height: 8px; border-left: 3px solid #fff; border-bottom: 3px solid #fff;
  transform: rotate(-45deg);
}
.mark.sm { width: 28px; height: 30px; border-radius: 8px 8px 10px 10px; }
.mark.sm::after { left: 8px; top: 9px; width: 10px; height: 6px; border-width: 2px; }

label { display: block; font-size: 12px; color: var(--muted); margin: 0 0 8px; }
input, .search {
  width: 100%; border: 1px solid var(--line); border-radius: 12px;
  background: #0a1020; color: var(--text); padding: 11px 12px; outline: none;
}
input:focus, .search:focus { border-color: rgba(45, 212, 191, 0.45); }
.btn {
  border: 0; border-radius: 12px; padding: 10px 14px; cursor: pointer;
  font-weight: 650; font-size: 13px;
}
.btn.primary {
  margin-top: 14px; width: 100%;
  background: linear-gradient(90deg, var(--accent), #22d3ee); color: #042f2e;
}
.btn.ghost {
  background: transparent; color: var(--muted);
  border: 1px solid var(--line);
}
.btn.danger {
  background: rgba(251, 113, 133, 0.12); color: var(--danger);
  border: 1px solid rgba(251, 113, 133, 0.28);
}
.btn.tiny { padding: 6px 8px; border-radius: 8px; margin: 0 4px 4px 0; }
.error, .ok {
  margin-top: 12px; border-radius: 12px; padding: 10px 12px; font-size: 12px;
}
.error { color: #fecdd3; background: rgba(251, 113, 133, 0.12); border: 1px solid rgba(251, 113, 133, 0.28); }
.ok { color: #a7f3d0; background: rgba(52, 211, 153, 0.1); border: 1px solid rgba(52, 211, 153, 0.25); }

.shell { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.side {
  border-right: 1px solid var(--line); padding: 22px 16px;
  display: flex; flex-direction: column; gap: 18px;
  background: rgba(7, 11, 20, 0.72); backdrop-filter: blur(8px);
}
.brand { display: flex; gap: 10px; align-items: center; }
.brand strong { display: block; font-size: 15px; }
.brand span { color: var(--muted); font-size: 12px; }
nav { display: flex; flex-direction: column; gap: 6px; flex: 1; }
.nav {
  text-align: left; border: 0; background: transparent; color: var(--muted);
  padding: 10px 12px; border-radius: 10px; cursor: pointer; font-size: 14px;
}
.nav.active, .nav:hover { background: var(--accent-dim); color: var(--text); }
.side-out { width: 100%; }

.main { padding: 24px 28px 40px; }
.top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 18px; }
.top h2 { margin: 0; font-size: 22px; }
.muted { color: var(--muted); font-size: 13px; margin: 6px 0 0; }

.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-bottom: 14px; }
.stat {
  background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 16px;
}
.stat .n { font-size: 28px; font-weight: 700; margin-top: 6px; }
.stat .l { color: var(--muted); font-size: 12px; }

.panel {
  background: var(--panel); border: 1px solid var(--line); border-radius: 16px;
  padding: 16px; margin-bottom: 14px;
}
.panel h3 { margin: 0; font-size: 15px; }
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 12px; }
.search { max-width: 240px; }

.kv { margin: 12px 0 0; display: grid; grid-template-columns: 120px 1fr; gap: 8px 12px; font-size: 13px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; word-break: break-all; font-family: Consolas, "Courier New", monospace; }

.form-grid {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)) auto; gap: 10px; align-items: end;
}
.form-grid.nodes {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.form-grid label { margin: 0; }
.form-grid .btn.primary { margin: 0; width: auto; min-width: 88px; }
.form-grid.nodes .btn.primary { grid-column: 1 / -1; width: 160px; }

.table-wrap { overflow: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 12px; }
.badge {
  display: inline-block; border-radius: 999px; padding: 2px 8px; font-size: 11px;
  border: 1px solid var(--line);
}
.badge.on { color: var(--ok); border-color: rgba(52, 211, 153, 0.35); background: rgba(52, 211, 153, 0.08); }
.badge.off { color: var(--danger); border-color: rgba(251, 113, 133, 0.35); background: rgba(251, 113, 133, 0.08); }
.badge.warn { color: var(--warn); border-color: rgba(251, 191, 36, 0.35); background: rgba(251, 191, 36, 0.08); }

dialog {
  border: 1px solid var(--line); border-radius: 16px; background: #0b1220; color: var(--text);
  padding: 0; width: min(440px, calc(100vw - 32px));
}
dialog::backdrop { background: rgba(0, 0, 0, 0.55); }
.dialog-form { padding: 20px; display: flex; flex-direction: column; gap: 10px; }
.dialog-form h3 { margin: 0 0 6px; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 8px; }
.dialog-actions .btn.primary { width: auto; margin: 0; }

@media (max-width: 980px) {
  .shell { grid-template-columns: 1fr; }
  .side { border-right: 0; border-bottom: 1px solid var(--line); }
  nav { flex-direction: row; flex-wrap: wrap; }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .form-grid { grid-template-columns: 1fr 1fr; }
}