:root {
  color-scheme: dark;
  --bg: #0f1115;
  --panel: #171a21;
  --panel-soft: #1f2430;
  --line: #303746;
  --fg: #f4f7fb;
  --muted: #9aa4b2;
  --blue: #38bdf8;
  --green: #34d399;
  --yellow: #fbbf24;
  --red: #fb7185;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; overflow-x: hidden; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.45;
}

.shell {
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: 24px;
}
.topbar {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}
h1, h2, p { margin: 0; }
h1 { font-size: 28px; letter-spacing: 0; }
h2 { font-size: 16px; }
.topbar p, .panel-head span, small { color: var(--muted); }
.top-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.pill, .button {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--fg);
  text-decoration: none;
  font-weight: 700;
  font-size: 13px;
}

.login-panel, .panel, .metric-card {
  border: 1px solid var(--line);
  background: var(--panel);
}
.login-panel {
  padding: 28px;
  display: grid;
  gap: 14px;
}
.button { width: max-content; background: var(--blue); color: #071018; border-color: var(--blue); }

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 12px;
}
.metric-card {
  padding: 18px;
  min-height: 132px;
  display: grid;
  align-content: space-between;
}
.metric-card span {
  color: var(--muted);
  font-weight: 700;
  font-size: 13px;
}
.metric-card strong {
  display: block;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1;
}

.panel { padding: 18px; }
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.chart-panel { margin-bottom: 12px; }
canvas {
  display: block;
  width: 100%;
  height: 260px;
  background: var(--panel-soft);
  border: 1px solid var(--line);
}
.legend {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
}
.legend i {
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 6px;
  vertical-align: -1px;
}
.cpu-dot { background: var(--blue); }
.memory-dot { background: var(--green); }
.net-dot { background: var(--yellow); }

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}
.service-list {
  display: grid;
  gap: 8px;
}
.service-item, .quota-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid var(--line);
  background: var(--panel-soft);
  padding: 10px 12px;
}
.state-ok { color: var(--green); }
.state-bad { color: var(--red); }
.quota {
  display: grid;
  gap: 10px;
}
.quota strong {
  font-size: 34px;
}
.quota-note {
  color: var(--muted);
  font-size: 13px;
}

.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}
th, td {
  border-bottom: 1px solid var(--line);
  padding: 10px 8px;
  text-align: left;
}
th {
  color: var(--muted);
  font-size: 12px;
}
td {
  font-size: 14px;
}

@media (max-width: 900px) {
  .shell { padding: 16px; }
  .topbar { align-items: flex-start; flex-direction: column; }
  .top-actions { justify-content: flex-start; }
  .metrics-grid { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .metrics-grid { grid-template-columns: 1fr; }
  .metric-card { min-height: 110px; }
  canvas { height: 220px; }
}