:root { color-scheme: light; font-family: Arial, sans-serif; color: #17212b; background: #f5f7f9; }
* { box-sizing: border-box; }
body { margin: 0; background: #f5f7f9; }
header { min-height: 56px; background: #17212b; color: #fff; display: flex; align-items: center; justify-content: space-between; padding: 0 24px; }
header div { display: flex; gap: 14px; align-items: center; }
header a { color: #fff; text-decoration: none; }
header span { color: #c7d0d8; font-size: 14px; }
main { max-width: 1180px; margin: 28px auto; padding: 0 24px; }
.toolbar, .node-heading { display: flex; gap: 16px; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.filters, .create, .actions { display: flex; gap: 8px; align-items: center; }
input, select, button { height: 36px; border: 1px solid #c7d0d8; border-radius: 4px; padding: 0 10px; font: inherit; }
button { background: #087e8b; color: #fff; border-color: #087e8b; cursor: pointer; }
button.quiet { background: transparent; border-color: #61707d; }
button.danger { background: #bb2d3b; border-color: #bb2d3b; }
table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { text-align: left; padding: 12px; border-bottom: 1px solid #e2e7eb; font-size: 14px; }
th { color: #52606d; font-weight: 600; }
td a { color: #087e8b; text-decoration: none; font-weight: 600; }
.state { display: inline-block; border-radius: 3px; padding: 3px 7px; font-size: 12px; text-transform: capitalize; }
.pending { color: #6c5b18; background: #fbf0c3; }.online { color: #145b36; background: #cfead8; }.delayed { color: #8a4b00; background: #ffe0b0; }.offline { color: #7c2631; background: #f6d0d4; }
.empty { color: #6b7785; text-align: center; padding: 28px; }.error { color: #a61b29; }.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 24px; }.metrics div { background: #fff; border: 1px solid #e2e7eb; padding: 16px; }.metrics span { display: block; color: #6b7785; font-size: 13px; margin-bottom: 8px; }.metrics strong { font-size: 20px; }.auth { display: grid; min-height: 100vh; place-items: center; }.auth-panel { max-width: 360px; width: 100%; background: #fff; border: 1px solid #dbe2e8; padding: 28px; }.auth label { display: grid; gap: 6px; margin: 14px 0; }.auth button { width: 100%; }.enrollment pre { overflow: auto; padding: 16px; background: #17212b; color: #e7f0f4; white-space: pre-wrap; }@media (max-width: 760px) { header, .toolbar, .node-heading { align-items: stretch; flex-direction: column; padding: 12px; }.filters, .create, .actions { flex-wrap: wrap; }.metrics { grid-template-columns: repeat(2, 1fr); } main { margin: 16px auto; padding: 0 12px; } table { display: block; overflow-x: auto; } }
.trend-section { margin-top: 28px; }.trend-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 12px; }.trend-heading h2 { margin: 0; font-size: 20px; }.trend-heading label { display: flex; align-items: center; gap: 8px; color: #52606d; font-size: 14px; }.trend-chart { min-height: 280px; background: #fff; border: 1px solid #e2e7eb; padding: 8px; }.trend-chart svg { display: block; width: 100%; height: auto; }.trend-grid { stroke: #e2e7eb; stroke-width: 1; }.trend-axis { fill: #6b7785; font-family: Arial, sans-serif; font-size: 12px; }.trend-line { stroke-linejoin: round; stroke-linecap: round; }@media (max-width: 760px) { .trend-heading { align-items: stretch; flex-direction: column; }.trend-chart { min-height: 220px; padding: 0; } }