:root {
  --bg: #0e1116;
  --panel: #151a22;
  --panel-2: #1a2130;
  --line: #232b3a;
  --text: #e6ebf3;
  --muted: #8b97ab;
  --accent: #4f9dff;
  --ok: #3ecf8e;
  --warn: #f0b429;
  --err: #f2555a;
  --radius: 10px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.55 system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif;
}

a { color: var(--accent); text-decoration: none; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.error { color: var(--err); min-height: 1.2em; margin: 6px 0 0; }

/* ---------- 登录 ---------- */
.login {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 24px;
}
.login-card {
  width: min(380px, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  display: grid;
  gap: 14px;
}
.login-card h1 { margin: 0; font-size: 20px; letter-spacing: .02em; }
.login-card p { margin: 0; }
.login-card label { display: grid; gap: 6px; font-size: 13px; color: var(--muted); }
.login-card input {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  padding: 10px 12px;
  font-size: 14px;
}
.login-card input:focus { outline: 1px solid var(--accent); border-color: var(--accent); }
.login-card button {
  background: var(--accent);
  color: #06121f;
  border: 0;
  border-radius: 8px;
  padding: 10px 14px;
  font-weight: 600;
  cursor: pointer;
}
.login-card button:disabled { opacity: .6; cursor: progress; }

/* ---------- 布局 ---------- */
.app { display: grid; grid-template-columns: 200px 1fr; min-height: 100vh; }

.sidebar {
  background: var(--panel);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  padding: 18px 12px;
  gap: 18px;
  position: sticky;
  top: 0;
  height: 100vh;
}
.brand { font-weight: 700; letter-spacing: .04em; padding: 0 8px; }
.brand span { color: var(--accent); }
.badge {
  margin-left: 8px;
  font-style: normal;
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 999px;
  background: var(--warn);
  color: #241a00;
  vertical-align: middle;
}
.badge.ok { background: var(--ok); color: #04251a; }

/* 受控写：行内小按钮 */
.ops { display: flex; flex-wrap: wrap; gap: 6px; }
button.mini {
  padding: 3px 9px;
  font-size: 12px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  cursor: pointer;
}
button.mini:hover { border-color: var(--accent); color: var(--accent); }
button.mini.danger:hover { border-color: var(--err); color: var(--err); }
button.mini:disabled { opacity: .5; cursor: default; }

/* 顶部提示条 */
.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  max-width: min(720px, 92vw);
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--panel-2);
  border: 1px solid var(--ok);
  color: var(--text);
  font-size: 13px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, .45);
  z-index: 50;
}
.toast.err { border-color: var(--err); }

#nav { display: grid; gap: 2px; }
#nav a {
  color: var(--muted);
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 13px;
}
#nav a:hover { background: var(--panel-2); color: var(--text); }
#nav a.active { background: var(--panel-2); color: var(--text); box-shadow: inset 2px 0 0 var(--accent); }

.sidebar-foot {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 8px;
}
.link {
  background: none;
  border: 0;
  color: var(--muted);
  cursor: pointer;
  font-size: 12px;
  padding: 0;
}
.link:hover { color: var(--err); }

.main { display: flex; flex-direction: column; min-width: 0; }
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 22px;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: rgba(14, 17, 22, .92);
  backdrop-filter: blur(6px);
  z-index: 5;
}
.topbar h2 { margin: 0; font-size: 16px; font-weight: 600; }
.topbar-actions { display: flex; align-items: center; gap: 12px; }
.ghost {
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 8px;
  padding: 6px 12px;
  cursor: pointer;
  font-size: 13px;
}
.ghost:hover { border-color: var(--accent); }

.view { padding: 20px 22px 60px; display: grid; gap: 18px; align-content: start; }

/* ---------- 卡片 ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 12px; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.card .label { color: var(--muted); font-size: 12px; }
.card .value { font-size: 22px; font-weight: 600; margin-top: 4px; }
.card .sub { color: var(--muted); font-size: 12px; margin-top: 2px; }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.panel > h3 {
  margin: 0;
  padding: 12px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  letter-spacing: .03em;
}
.panel-body { padding: 14px 16px; }
.panel-body.tight { padding: 0; }

/* ---------- 表格 ---------- */
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { color: var(--muted); font-weight: 500; font-size: 12px; white-space: nowrap; }
tbody tr:hover { background: var(--panel-2); }
tbody tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }

.tag {
  display: inline-block;
  font-size: 11px;
  padding: 1px 7px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
  margin-right: 4px;
}
.tag.online { color: var(--ok); border-color: rgba(62, 207, 142, .35); background: rgba(62, 207, 142, .08); }
.tag.offline { color: var(--muted); }
.tag.type { color: var(--accent); border-color: rgba(79, 157, 255, .3); background: rgba(79, 157, 255, .07); }
.tag.warn { color: var(--warn); border-color: rgba(240, 180, 41, .35); background: rgba(240, 180, 41, .08); }
.tag.err { color: var(--err); border-color: rgba(242, 85, 90, .35); background: rgba(242, 85, 90, .08); }

.domains { display: flex; flex-wrap: wrap; gap: 4px; }
.domains code {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 1px 6px;
  font-size: 12px;
}

/* ---------- 提示 ---------- */
.alerts { display: grid; gap: 8px; }
.alert {
  display: flex;
  gap: 10px;
  align-items: baseline;
  border: 1px solid var(--line);
  border-left-width: 3px;
  border-radius: 8px;
  padding: 10px 14px;
  background: var(--panel);
  font-size: 13px;
}
.alert.error { border-left-color: var(--err); }
.alert.warn { border-left-color: var(--warn); }
.alert.info { border-left-color: var(--accent); }
.alert strong { font-weight: 600; }
.alert span { color: var(--muted); }

/* ---------- 详情抽屉 ---------- */
.drawer { border-top: 1px solid var(--line); background: var(--panel-2); padding: 14px 16px; }
.kv { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 8px 18px; font-size: 13px; }
.kv div span:first-child { color: var(--muted); margin-right: 8px; }
.chart { margin-top: 12px; }

.empty { padding: 28px 16px; text-align: center; color: var(--muted); font-size: 13px; }
pre.json {
  margin: 8px 0 0;
  padding: 10px 12px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 12px;
  overflow: auto;
  max-height: 260px;
}

.filters { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.filters select, .filters input {
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 13px;
}
.filters input { min-width: 200px; }

@media (max-width: 760px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { height: auto; position: static; flex-direction: row; align-items: center; overflow-x: auto; }
  #nav { display: flex; }
  .sidebar-foot { margin: 0 0 0 auto; gap: 10px; }
  .brand { display: none; }
}