:root {
  --bg: #f4f5f7;
  --panel: #ffffff;
  --panel-2: #fafbfc;
  --sidebar: #1f2430;
  --sidebar-2: #171b25;
  --sidebar-text: #c8cddb;
  --sidebar-active: #2f81f7;
  --text: #1f2328;
  --text-2: #656d76;
  --text-3: #8b949e;
  --border: #e3e6ea;
  --accent: #2f81f7;
  --accent-soft: #e8f1fe;
  --ok: #1a7f37;
  --ok-soft: #e6f4ea;
  --warn: #9a6700;
  --warn-soft: #fff5d6;
  --danger: #cf222e;
  --danger-soft: #ffeceb;
  --radius: 10px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

html[data-theme="dark"] {
  --bg: #0d1117;
  --panel: #161b22;
  --panel-2: #1c2230;
  --sidebar: #0b0f16;
  --sidebar-2: #0b0f16;
  --sidebar-text: #adbac7;
  --text: #e6edf3;
  --text-2: #9aa4b2;
  --text-3: #6e7681;
  --border: #2a3140;
  --accent: #4493f8;
  --accent-soft: #12304d;
  --ok: #3fb950;
  --ok-soft: #10281a;
  --warn: #d29922;
  --warn-soft: #2b2411;
  --danger: #f85149;
  --danger-soft: #3a1616;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

.hidden { display: none !important; }

/* ---------- 登录 ---------- */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  padding: 20px;
}
.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px 28px;
}
.login-card h1 { margin: 0 0 4px; font-size: 20px; font-weight: 600; }
.login-card p.sub { margin: 0 0 22px; color: var(--text-2); font-size: 13px; }

/* ---------- 布局 ---------- */
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 208px;
  flex: 0 0 208px;
  background: var(--sidebar);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  padding: 16px 10px;
}
.brand {
  display: flex; align-items: center; gap: 9px;
  padding: 6px 10px 18px;
  font-size: 15px; font-weight: 600; color: #fff;
}
.brand .dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--sidebar-active);
  box-shadow: 0 0 0 3px rgba(47,129,247,.18);
}
.nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.nav button {
  display: flex; align-items: center; gap: 10px;
  width: 100%; padding: 9px 11px;
  background: none; border: 0; border-radius: 8px;
  color: var(--sidebar-text); font-size: 13.5px; font-family: inherit;
  text-align: left; cursor: pointer;
}
.nav button:hover { background: rgba(255,255,255,.06); color: #fff; }
.nav button.active { background: var(--sidebar-active); color: #fff; }
.nav .badge-n {
  margin-left: auto; background: var(--danger); color: #fff;
  font-size: 11px; padding: 1px 6px; border-radius: 9px;
}
.sidebar-foot { padding: 10px; font-size: 11.5px; color: #6b7280; }
.node-pick { display: block; margin-bottom: 8px; }
.node-pick > span { display: block; font-size: 11px; color: #6b7280; margin-bottom: 4px; }
.sidebar-foot select {
  width: 100%; padding: 6px 8px; font-size: 12.5px;
  background: var(--sidebar-2); color: var(--sidebar-text);
  border: 1px solid rgba(255, 255, 255, .16); border-radius: 7px;
}
.sidebar-foot select:focus { outline: 1px solid var(--sidebar-active); border-color: var(--sidebar-active); }
#host-label { display: flex; align-items: center; gap: 5px; line-height: 1.5; }
#host-label .dot {
  flex: 0 0 auto; width: 7px; height: 7px; border-radius: 50%; background: #6b7280;
}
#host-label .dot.online { background: #3fb950; }
#host-label .dot.offline { background: #6b7280; }
#host-label .dot.error { background: var(--danger); }
#host-label .dot.unknown { background: var(--warn); }

.content { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar {
  display: flex; align-items: center; gap: 14px;
  padding: 0 22px; height: 56px;
  background: var(--panel); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 20;
}
.topbar h2 { margin: 0; font-size: 15.5px; font-weight: 600; }
.topbar .spacer { flex: 1; }
.topbar .user { font-size: 13px; color: var(--text-2); }
main { padding: 20px 22px 60px; }

/* ---------- 通用组件 ---------- */
.card {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px 18px; margin-bottom: 16px;
}
.card h3 { margin: 0 0 14px; font-size: 14px; font-weight: 600; }
.card h3 .hint { font-weight: 400; color: var(--text-3); font-size: 12px; margin-left: 8px; }
.row { display: flex; gap: 12px; flex-wrap: wrap; }
.grid { display: grid; gap: 14px; }
.grid.c2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid.c3 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.grid.c4 { grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); }

.stat { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; }
.stat .label { font-size: 12px; color: var(--text-2); margin-bottom: 6px; }
.stat .value { font-size: 21px; font-weight: 600; font-variant-numeric: tabular-nums; }
.stat .sub { font-size: 12px; color: var(--text-3); margin-top: 4px; }
.stat .bar { height: 5px; border-radius: 3px; background: var(--border); margin-top: 9px; overflow: hidden; }
.stat .bar > i { display: block; height: 100%; background: var(--ok); }
.stat .bar.warn > i { background: var(--warn); }
.stat .bar.danger > i { background: var(--danger); }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { color: var(--text-2); font-weight: 500; font-size: 12px; white-space: nowrap; }
tbody tr:hover { background: var(--panel-2); }
td.mono, .mono { font-family: var(--mono); font-size: 12.5px; }
.table-wrap { overflow-x: auto; }

button, .btn {
  font-family: inherit; font-size: 13px;
  padding: 7px 13px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--panel); color: var(--text);
  cursor: pointer; white-space: nowrap;
}
button:hover, .btn:hover { border-color: var(--text-3); }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.primary:hover { filter: brightness(1.08); }
button.danger { color: var(--danger); border-color: var(--danger); background: transparent; }
button.danger:hover { background: var(--danger-soft); }
button.ghost { border-color: transparent; background: transparent; color: var(--text-2); }
button.ghost:hover { color: var(--text); background: var(--panel-2); }
button.sm { padding: 4px 9px; font-size: 12px; }
button:disabled { opacity: .5; cursor: not-allowed; }

input, select, textarea {
  font-family: inherit; font-size: 13px;
  padding: 7px 10px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--panel); color: var(--text);
  width: 100%;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
textarea { font-family: var(--mono); font-size: 12.5px; line-height: 1.6; resize: vertical; }
label.field { display: block; margin-bottom: 12px; }
label.field > span { display: block; font-size: 12.5px; color: var(--text-2); margin-bottom: 5px; }
.inline { display: flex; gap: 8px; align-items: flex-end; flex-wrap: wrap; }
.inline > label.field { margin-bottom: 0; flex: 0 0 auto; }

.tag {
  display: inline-block; font-size: 11.5px; padding: 2px 8px; border-radius: 20px;
  background: var(--panel-2); color: var(--text-2); border: 1px solid var(--border);
  white-space: nowrap;
}
.tag.ok { background: var(--ok-soft); color: var(--ok); border-color: transparent; }
.tag.warn { background: var(--warn-soft); color: var(--warn); border-color: transparent; }
.tag.danger { background: var(--danger-soft); color: var(--danger); border-color: transparent; }
.tag.info { background: var(--accent-soft); color: var(--accent); border-color: transparent; }

.empty { color: var(--text-3); font-size: 13px; padding: 22px 0; text-align: center; }
.err { color: var(--danger); font-size: 12.5px; }
.muted { color: var(--text-2); }
.small { font-size: 12px; }
pre.log {
  margin: 0; padding: 12px; border-radius: 8px;
  background: var(--panel-2); border: 1px solid var(--border);
  font-family: var(--mono); font-size: 12px; line-height: 1.65;
  max-height: 460px; overflow: auto; white-space: pre-wrap; word-break: break-all;
}
.crumbs { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; font-size: 12.5px; margin-bottom: 10px; }
.crumbs button { padding: 2px 7px; font-size: 12.5px; border: 0; background: none; color: var(--accent); }
.crumbs span.sep { color: var(--text-3); }
.spark { width: 100%; height: 44px; display: block; }

/* ---------- 弹层 ---------- */
.modal-wrap {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(0,0,0,.45);
  display: flex; align-items: center; justify-content: center; padding: 20px;
}
.modal {
  background: var(--panel); border-radius: 12px;
  width: 100%; max-width: 620px; max-height: 86vh; overflow: auto;
  padding: 20px 22px; border: 1px solid var(--border);
}
.modal.wide { max-width: 900px; }
.modal h3 { margin: 0 0 14px; font-size: 15px; }
.modal .actions { display: flex; justify-content: flex-end; gap: 9px; margin-top: 18px; }
.modal .warnbox {
  background: var(--danger-soft); color: var(--danger);
  border-radius: 8px; padding: 10px 12px; font-size: 12.5px; margin-bottom: 14px;
}

.toast-wrap { position: fixed; right: 18px; bottom: 18px; z-index: 200; display: flex; flex-direction: column; gap: 8px; }
.toast {
  background: var(--panel); border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 8px; padding: 10px 14px; font-size: 13px;
  max-width: 380px; box-shadow: 0 4px 14px rgba(0,0,0,.12);
}
.toast.ok { border-left-color: var(--ok); }
.toast.err { border-left-color: var(--danger); }

@media (max-width: 820px) {
  .sidebar { width: 60px; flex: 0 0 60px; padding: 12px 6px; }
  .nav button span.t { display: none; }
  .brand span.name { display: none; }
  .node-pick, #host-label { display: none; }
  main { padding: 14px; }
}