:root {
  --bg: #0e1116;
  --bg-2: #151a22;
  --bg-3: #1c222c;
  --line: #262e3a;
  --fg: #e6ebf2;
  --muted: #8b95a5;
  --accent: #58e0e6;
  --accent-2: #9b7dff;
  --ok: #4ade80;
  --warn: #fbbf24;
  --danger: #f87171;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: radial-gradient(1200px 600px at 20% -10%, #18202b 0%, var(--bg) 60%) fixed;
  color: var(--fg);
  font: 14px/1.5 "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

h1 { font-size: 18px; margin: 0; letter-spacing: .2px; }
h2 { font-size: 15px; margin: 0 0 12px; color: var(--fg); font-weight: 600; }
h3 { font-size: 13px; margin: 18px 0 8px; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; }
p { margin: 6px 0; }
code, pre { font-family: "JetBrains Mono", Consolas, monospace; }

.muted { color: var(--muted); }
.error { color: var(--danger); }
.hidden, [hidden] { display: none !important; }

/* ── 登录 ── */
.overlay {
  position: fixed; inset: 0; display: grid; place-items: center;
  background: rgba(8, 10, 14, .82); backdrop-filter: blur(6px); z-index: 50;
}
.card {
  background: linear-gradient(180deg, var(--bg-2), var(--bg-3));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 16px;
}
.login-card { width: 340px; display: grid; gap: 12px; }
.login-card label { display: grid; gap: 6px; font-size: 13px; color: var(--muted); }
.login-card input {
  background: #0d1117; border: 1px solid var(--line); color: var(--fg);
  border-radius: 8px; padding: 10px 12px; font-size: 14px;
}
.login-card input:focus { outline: none; border-color: var(--accent); }

.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 38px; height: 38px; display: grid; place-items: center;
  border-radius: 10px; font-weight: 700; color: #06222a;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

/* ── 顶栏 ── */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; border-bottom: 1px solid var(--line);
  background: rgba(14, 17, 22, .7); backdrop-filter: blur(8px);
  position: sticky; top: 0; z-index: 10;
}
.topbar-right { display: flex; align-items: center; gap: 10px; }
.pill {
  display: inline-flex; align-items: center; gap: 7px;
  background: #10151d; border: 1px solid var(--line);
  border-radius: 999px; padding: 5px 12px; font-size: 12px; color: var(--muted);
}
.pill .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--muted); }
.pill.ok .dot { background: var(--ok); box-shadow: 0 0 8px var(--ok); }
.pill.bad .dot { background: var(--danger); }

/* ── 标签页 ── */
.tabs {
  display: flex; gap: 4px; padding: 12px 20px 0; flex-wrap: wrap;
  border-bottom: 1px solid var(--line); position: sticky; top: 67px;
  background: rgba(14, 17, 22, .7); backdrop-filter: blur(8px); z-index: 9;
}
.tab {
  background: transparent; border: 1px solid transparent; border-bottom: none;
  color: var(--muted); padding: 9px 14px; border-radius: 8px 8px 0 0;
  cursor: pointer; font-size: 13px;
}
.tab:hover { color: var(--fg); background: #141a23; }
.tab.active { color: var(--fg); background: var(--bg-3); border-color: var(--line); }

main { padding: 20px; max-width: 1500px; margin: 0 auto; }
.panel { display: none; }
.panel.active { display: block; }

/* ── 统计卡 ── */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat {
  background: linear-gradient(180deg, var(--bg-2), var(--bg-3));
  border: 1px solid var(--line); border-radius: var(--radius); padding: 14px;
}
.stat .k { font-size: 12px; color: var(--muted); }
.stat .v { font-size: 22px; font-weight: 650; margin-top: 4px; }
.stat .s { font-size: 11px; color: var(--muted); margin-top: 2px; }

.split { display: grid; grid-template-columns: 1.4fr 1fr; gap: 16px; }
@media (max-width: 1100px) { .split { grid-template-columns: 1fr; } }

.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 10px; }
.card-head h2 { margin: 0; }
.row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.row.center { justify-content: center; margin-top: 12px; }

/* ── 表格 ── */
.tbl { width: 100%; border-collapse: collapse; font-size: 13px; }
.tbl th, .tbl td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.tbl th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; white-space: nowrap; }
.tbl tbody tr:hover { background: #141a23; }
.tbl.kv th { width: 160px; }
.scroll-x { overflow-x: auto; }
.mono { font-family: "JetBrains Mono", Consolas, monospace; font-size: 12px; }
.tag { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 11px; border: 1px solid var(--line); background: #10151d; color: var(--muted); }
.tag.ok { color: var(--ok); border-color: #1d4d33; }
.tag.no { color: var(--danger); border-color: #4d1d1d; }
.tag.warn { color: var(--warn); border-color: #4d3d1d; }

/* ── 表单与按钮 ── */
button {
  font: inherit; cursor: pointer; border-radius: 8px; padding: 8px 14px;
  border: 1px solid var(--line); background: #141a23; color: var(--fg);
}
button:hover { border-color: #3a4553; }
button.primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #06222a; border: none; font-weight: 650; }
button.ghost { background: transparent; }
button.danger { color: var(--danger); border-color: #4d1d1d; }
button.mini { padding: 4px 9px; font-size: 12px; }
input, select, textarea {
  font: inherit; background: #0d1117; border: 1px solid var(--line);
  color: var(--fg); border-radius: 8px; padding: 8px 10px; min-width: 120px;
}
input:focus, select:focus { outline: none; border-color: var(--accent); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; align-items: end; }
.form-grid label { display: grid; gap: 6px; font-size: 12px; color: var(--muted); }
.form-grid .span2 { grid-column: span 2; }
.form-grid .check { display: flex; align-items: center; gap: 8px; color: var(--fg); font-size: 13px; }
.form-grid input[type="checkbox"] { min-width: auto; }

/* ── 事件流 ── */
.stream { max-height: 420px; overflow-y: auto; font-family: "JetBrains Mono", Consolas, monospace; font-size: 12px; }
.stream .ev { padding: 6px 8px; border-bottom: 1px solid #1b2029; display: flex; gap: 10px; }
.stream .ev time { color: var(--muted); flex: 0 0 68px; }
.stream .ev .t { flex: 0 0 78px; color: var(--accent); }
.stream .ev.msg .t { color: var(--accent-2); }
.stream .ev.disconnect .t, .stream .ev.error .t { color: var(--danger); }
.stream .ev .d { color: var(--fg); word-break: break-all; }

.steps { padding-left: 18px; }
.steps li { margin-bottom: 12px; }
pre {
  background: #0d1117; border: 1px solid var(--line); border-radius: 8px;
  padding: 10px 12px; margin: 6px 0 0; overflow-x: auto; color: var(--accent);
}

.toast {
  position: fixed; right: 20px; bottom: 20px; z-index: 60;
  background: var(--bg-3); border: 1px solid var(--line); border-left: 3px solid var(--accent);
  padding: 12px 16px; border-radius: 8px; max-width: 420px;
  box-shadow: 0 10px 30px rgba(0,0,0,.5);
}
.toast.err { border-left-color: var(--danger); }
.toast.ok { border-left-color: var(--ok); }