:root {
  color-scheme: dark;
  --bg: #090d14;
  --sidebar: #0d131d;
  --panel: #131b27;
  --panel-hover: #192434;
  --text: #f4f6f8;
  --muted: #98a5b5;
  --line: #263244;
  --accent: #67d7c4;
  --online: #45d483;
  --warning: #e3b653;
  --offline: #ff6b6b;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a { color: inherit; }

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 250px 1fr;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 24px 18px;
  border-right: 1px solid var(--line);
  background: var(--sidebar);
  display: flex;
  flex-direction: column;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 4px 6px 28px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: linear-gradient(145deg, rgba(103,215,196,.18), rgba(255,255,255,.03));
  font-weight: 900;
  color: var(--accent);
}

.brand-name {
  font-size: .95rem;
  font-weight: 900;
  letter-spacing: .14em;
}

.brand-node {
  margin-top: 3px;
  color: var(--muted);
  font-size: .82rem;
}

.nav {
  display: grid;
  gap: 6px;
}

.nav-link {
  padding: 11px 12px;
  border-radius: 9px;
  color: var(--muted);
  text-decoration: none;
  font-size: .92rem;
}

.nav-link:hover,
.nav-link.active {
  background: rgba(103,215,196,.08);
  color: var(--text);
}

.sidebar-footer {
  margin-top: auto;
  padding: 12px;
  color: var(--muted);
  font-size: .8rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.main {
  width: min(1240px, calc(100% - 48px));
  margin: 0 auto;
  padding: 36px 0 48px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

.eyebrow,
.section-kicker {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  font-weight: 800;
}

h1 {
  margin: 0;
  font-size: clamp(2.6rem, 6vw, 5.6rem);
  line-height: .92;
  letter-spacing: -.055em;
}

.node-label {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 1.1rem;
}

.topbar-meta {
  display: grid;
  gap: 5px;
  color: var(--muted);
  text-align: right;
  font-size: .86rem;
}

.section {
  padding-top: 34px;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 20px;
  margin-bottom: 15px;
}

.section-heading h2 {
  margin: 0;
  font-size: 1.3rem;
}

.section-heading > p {
  margin: 0;
  color: var(--muted);
  font-size: .86rem;
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.status-card,
.service-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
}

.status-card {
  min-height: 130px;
  padding: 18px;
}

.status-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.status-name {
  font-weight: 750;
}

.status-state {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: .78rem;
  font-weight: 750;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  display: inline-block;
}

.online { color: var(--online); }
.warning { color: var(--warning); }
.offline { color: var(--offline); }

.status-value {
  margin-top: 28px;
  font-size: 1.5rem;
  font-weight: 800;
}

.status-detail {
  margin-top: 6px;
  color: var(--muted);
  font-size: .8rem;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.service-card {
  min-height: 160px;
  padding: 18px;
  position: relative;
  text-decoration: none;
  transition: transform .15s ease, border-color .15s ease, background .15s ease;
}

.service-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
  background: var(--panel-hover);
}

.service-card.disabled {
  opacity: .5;
  pointer-events: none;
}

.service-icon {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 9px;
  color: var(--accent);
  font-weight: 900;
  font-size: .82rem;
}

.service-card h3 {
  margin: 18px 0 6px;
  font-size: 1.05rem;
}

.service-card p {
  margin: 0;
  color: var(--muted);
  font-size: .87rem;
  line-height: 1.5;
}

.service-foot {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 14px;
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .08em;
}

footer {
  margin-top: 38px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  font-size: .8rem;
}

@media (max-width: 1050px) {
  .status-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .service-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar {
    position: static;
    width: auto;
    height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .nav {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .sidebar-footer { display: none; }
  .main { width: min(100% - 24px, 1240px); padding-top: 24px; }
  .topbar,
  .section-heading { align-items: flex-start; flex-direction: column; }
  .topbar-meta { text-align: left; }
}

@media (max-width: 560px) {
  .status-grid,
  .service-grid { grid-template-columns: 1fr; }
  .nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}