:root {
  --bg: #08090a;
  --panel: #0f1012;
  --surface: rgba(255, 255, 255, 0.025);
  --surface-hover: rgba(255, 255, 255, 0.042);
  --border: rgba(255, 255, 255, 0.075);
  --border-soft: rgba(255, 255, 255, 0.048);
  --text: #f4f5f7;
  --text-secondary: #c4c8d0;
  --muted: #858a94;
  --dim: #5d626c;
  --accent: #7170ff;
  --accent-soft: rgba(113, 112, 255, 0.13);
  --green: #38c793;
  --green-soft: rgba(56, 199, 147, 0.12);
  --amber: #e5b95c;
  --amber-soft: rgba(229, 185, 92, 0.12);
  --red: #ef6b73;
  --red-soft: rgba(239, 107, 115, 0.12);
  --radius: 12px;
  --max: 1180px;
}

* { box-sizing: border-box; }

html { background: var(--bg); color-scheme: dark; }

body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  background:
    radial-gradient(circle at 52% -18%, rgba(113, 112, 255, 0.11), transparent 31rem),
    var(--bg);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-feature-settings: "cv01", "ss03";
  -webkit-font-smoothing: antialiased;
}

button, a { font: inherit; }

.ambient {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .22;
  background-image: linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, #000, transparent 42%);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 max(24px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid var(--border-soft);
  background: rgba(8, 9, 10, .78);
  backdrop-filter: blur(18px) saturate(135%);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--text);
  text-decoration: none;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .11em;
}

.brand-muted { color: var(--dim); font-weight: 500; }

.brand-mark {
  position: relative;
  width: 22px;
  height: 22px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  align-items: end;
  gap: 2px;
  padding: 4px;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 6px;
  background: rgba(255,255,255,.035);
}

.brand-mark i { display: block; border-radius: 1px; background: var(--accent); }
.brand-mark i:nth-child(1) { height: 46%; opacity: .62; }
.brand-mark i:nth-child(2) { height: 100%; }
.brand-mark i:nth-child(3) { height: 70%; opacity: .8; }

.header-actions { display: flex; align-items: center; gap: 16px; }
.updated { color: var(--dim); font-size: 12px; font-variant-numeric: tabular-nums; }

.refresh-button {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 34px;
  padding: 0 11px;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 7px;
  background: rgba(255,255,255,.028);
  cursor: pointer;
  transition: border-color .18s ease, background .18s ease, color .18s ease;
}
.refresh-button:hover { color: var(--text); background: rgba(255,255,255,.055); border-color: rgba(255,255,255,.13); }
.refresh-button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.refresh-button svg { width: 15px; fill: none; stroke: currentColor; stroke-width: 1.55; stroke-linecap: round; stroke-linejoin: round; }
.refresh-button.is-spinning svg { animation: spin .7s linear infinite; }

.shell { position: relative; width: min(calc(100% - 48px), var(--max)); margin: 0 auto; padding: 76px 0 56px; }

.hero { padding-bottom: 42px; }
.eyebrow, .section-kicker {
  color: var(--dim);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .16em;
}

.hero-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 28px; margin-top: 16px; }
h1 { margin: 0; font-size: clamp(36px, 5.5vw, 58px); line-height: 1.04; letter-spacing: -.045em; font-weight: 530; }
.hero p { max-width: 680px; margin: 17px 0 0; color: var(--muted); font-size: 16px; line-height: 1.7; }

.overall-pill, .state-badge {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 520;
}
.overall-pill { gap: 9px; padding: 10px 14px; margin-bottom: 4px; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--dim); box-shadow: 0 0 0 4px rgba(255,255,255,.04); }
.is-operational { color: #8ce3bd; border-color: rgba(56,199,147,.24); background: var(--green-soft); }
.is-operational .status-dot { background: var(--green); box-shadow: 0 0 0 4px rgba(56,199,147,.11); }
.is-degraded { color: #efd18b; border-color: rgba(229,185,92,.23); background: var(--amber-soft); }
.is-degraded .status-dot { background: var(--amber); box-shadow: 0 0 0 4px rgba(229,185,92,.1); }
.is-outage { color: #f4969c; border-color: rgba(239,107,115,.23); background: var(--red-soft); }
.is-outage .status-dot { background: var(--red); box-shadow: 0 0 0 4px rgba(239,107,115,.1); }
.is-loading { color: var(--muted); background: rgba(255,255,255,.025); }

.metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: rgba(255,255,255,.014); }
.metric-card { min-width: 0; padding: 23px 22px 21px; border-right: 1px solid var(--border-soft); }
.metric-card:last-child { border-right: 0; }
.metric-label { color: var(--muted); font-size: 12px; }
.metric-value { margin-top: 13px; font-size: clamp(24px, 3vw, 32px); font-weight: 520; letter-spacing: -.035em; font-variant-numeric: tabular-nums; }
.metric-meta { min-height: 18px; margin-top: 8px; color: var(--dim); font-size: 11px; line-height: 1.55; }

.panel { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.usage-panel { margin-top: 20px; padding: 23px 24px 18px; }
.panel-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; }
.panel-head.compact { padding: 22px 22px 17px; border-bottom: 1px solid var(--border-soft); }
h2 { margin: 7px 0 0; font-size: 18px; font-weight: 540; letter-spacing: -.018em; }
.legend { display: flex; align-items: center; gap: 8px; color: var(--dim); font-size: 11px; }
.legend span { width: 8px; height: 8px; border-radius: 2px; background: var(--accent); opacity: .85; }
.chart-wrap { position: relative; height: 240px; margin-top: 18px; }
#usage-chart { display: block; width: 100%; height: 100%; overflow: visible; }
.chart-empty { position: absolute; inset: 0; display: grid; place-items: center; color: var(--dim); font-size: 12px; }
.chart-empty[hidden] { display: none; }
.chart-axis { display: flex; justify-content: space-between; padding-top: 8px; color: var(--dim); font-size: 10px; border-top: 1px solid var(--border-soft); }
.chart-grid { stroke: rgba(255,255,255,.05); stroke-width: 1; }
.chart-bar { fill: rgba(113,112,255,.18); }
.chart-area { fill: url(#areaGradient); }
.chart-line { fill: none; stroke: #8584ff; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.chart-point { fill: #a3a2ff; }

.two-column { display: grid; grid-template-columns: 1.4fr .8fr; gap: 20px; margin-top: 20px; }
.service-list { padding: 4px 12px; }
.service-row { display: grid; grid-template-columns: 38px minmax(0, 1fr) auto; align-items: center; gap: 13px; padding: 15px 10px; border-bottom: 1px solid var(--border-soft); }
.service-row:last-child { border-bottom: 0; }
.service-icon { width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid var(--border); border-radius: 8px; background: rgba(255,255,255,.025); color: var(--muted); font-size: 11px; font-family: ui-monospace, monospace; }
.gateway-icon { color: #aaa9ff; background: var(--accent-soft); }
.database-icon { color: #79d6b2; background: var(--green-soft); }
.redis-icon { color: #ef9096; background: var(--red-soft); }
.service-copy { min-width: 0; display: flex; flex-direction: column; gap: 4px; }
.service-copy strong { font-size: 13px; font-weight: 530; }
.service-copy span { overflow: hidden; color: var(--dim); font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.state-badge { padding: 5px 9px; }

.topology-list { margin: 0; padding: 5px 22px 10px; }
.topology-list div { display: flex; justify-content: space-between; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--border-soft); }
.topology-list div:last-child { border-bottom: 0; }
.topology-list dt { color: var(--muted); font-size: 12px; }
.topology-list dd { margin: 0; color: var(--text-secondary); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; font-weight: 500; }

.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin: 48px 0 17px; }
.section-head p { margin: 0; color: var(--dim); font-size: 11px; }
.node-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.node-card { min-width: 0; padding: 20px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); transition: background .18s ease, border-color .18s ease, transform .18s ease; }
.node-card:hover { transform: translateY(-1px); background: var(--surface-hover); border-color: rgba(255,255,255,.11); }
.node-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.node-title { display: flex; align-items: center; gap: 9px; }
.node-title h3 { margin: 0; font-size: 15px; font-weight: 550; letter-spacing: -.01em; }
.node-online { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px rgba(56,199,147,.08); }
.node-online.degraded { background: var(--amber); box-shadow: 0 0 0 4px rgba(229,185,92,.08); }
.node-region { margin-top: 7px; color: var(--dim); font-size: 11px; }
.role-list { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 18px; }
.role-chip { padding: 4px 7px; border: 1px solid var(--border-soft); border-radius: 5px; background: rgba(255,255,255,.025); color: var(--muted); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 9px; }
.role-chip.primary, .role-chip.active, .role-chip.master { color: #aaa9ff; border-color: rgba(113,112,255,.2); background: var(--accent-soft); }
.resource-list { display: grid; gap: 12px; margin-top: 22px; }
.resource-line { display: grid; grid-template-columns: 58px 1fr 38px; align-items: center; gap: 9px; }
.resource-line label, .resource-line output { color: var(--dim); font-size: 10px; }
.resource-line output { text-align: right; font-variant-numeric: tabular-nums; }
.progress { height: 4px; overflow: hidden; border-radius: 99px; background: rgba(255,255,255,.055); }
.progress i { display: block; height: 100%; border-radius: inherit; background: #696d78; }
.progress i.medium { background: var(--amber); }
.progress i.high { background: var(--red); }
.lag-note { margin-top: 16px; padding-top: 13px; border-top: 1px solid var(--border-soft); color: var(--dim); font-size: 10px; }

.route-section .section-head { margin-top: 38px; }
.route-grid { display: grid; }
.route-card { display: grid; grid-template-columns: 1.1fr .9fr; gap: 26px; padding: 22px; border: 1px solid rgba(113,112,255,.18); border-radius: var(--radius); background: linear-gradient(135deg, rgba(113,112,255,.07), rgba(255,255,255,.018) 48%); }
.route-identity { min-width: 0; }
.route-title-row { display: flex; align-items: center; gap: 10px; }
.route-title-row h3 { margin: 0; font-size: 16px; font-weight: 550; letter-spacing: -.01em; }
.route-title-row .state-badge { margin-left: auto; padding: 5px 9px; }
.route-identity > p { margin: 8px 0 0; color: var(--dim); font-size: 11px; }
.route-path { display: flex; align-items: center; gap: 8px; margin-top: 24px; overflow: hidden; }
.route-step { min-width: 0; padding: 7px 9px; overflow: hidden; color: var(--text-secondary); border: 1px solid var(--border); border-radius: 6px; background: rgba(255,255,255,.026); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; text-overflow: ellipsis; white-space: nowrap; }
.route-path i { color: var(--accent); font-size: 12px; font-style: normal; }
.route-metrics { display: grid; grid-template-columns: 112px 1fr; align-items: stretch; gap: 18px; padding-left: 24px; border-left: 1px solid var(--border-soft); }
.route-latency { display: flex; flex-direction: column; justify-content: center; gap: 7px; }
.route-latency span { color: var(--dim); font-size: 10px; }
.route-latency strong { color: var(--text); font-size: 23px; font-weight: 520; letter-spacing: -.035em; font-variant-numeric: tabular-nums; }
.route-resources { display: grid; align-content: center; gap: 11px; }

footer { width: min(calc(100% - 48px), var(--max)); margin: 0 auto; padding: 23px 0 34px; display: flex; gap: 9px; color: var(--dim); border-top: 1px solid var(--border-soft); font-size: 10px; }
.footer-separator { opacity: .45; }

@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 920px) {
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
  .metric-card:nth-child(2) { border-right: 0; }
  .metric-card:nth-child(-n+2) { border-bottom: 1px solid var(--border-soft); }
  .two-column { grid-template-columns: 1fr; }
  .node-grid { grid-template-columns: 1fr 1fr; }
  .node-card:first-child { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  .topbar { height: 58px; padding: 0 16px; }
  .updated { display: none; }
  .brand-muted { display: none; }
  .shell { width: min(calc(100% - 28px), var(--max)); padding-top: 50px; }
  .hero { padding-bottom: 30px; }
  .hero-row { align-items: flex-start; flex-direction: column; gap: 20px; }
  h1 { font-size: 36px; }
  .hero p { font-size: 14px; }
  .overall-pill { margin: 0; }
  .metric-grid { grid-template-columns: 1fr; }
  .metric-card { border-right: 0; border-bottom: 1px solid var(--border-soft); }
  .metric-card:last-child { border-bottom: 0; }
  .metric-card:nth-child(2) { border-bottom: 1px solid var(--border-soft); }
  .usage-panel { padding: 20px 16px 16px; }
  .legend { display: none; }
  .chart-wrap { height: 190px; }
  .node-grid { grid-template-columns: 1fr; }
  .node-card:first-child { grid-column: auto; }
  .route-card { grid-template-columns: 1fr; gap: 20px; padding: 18px; }
  .route-path { flex-wrap: wrap; }
  .route-metrics { grid-template-columns: 96px 1fr; padding: 18px 0 0; border-top: 1px solid var(--border-soft); border-left: 0; }
  .section-head { align-items: flex-start; flex-direction: column; gap: 8px; margin-top: 38px; }
  footer { width: calc(100% - 28px); flex-wrap: wrap; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .001ms !important; transition-duration: .001ms !important; }
}