body { margin: 0; font-family: system-ui, -apple-system, "Segoe UI", sans-serif; color: #212529; background: #f8f9fa; }
header { padding: 16px 20px 8px; }
h1 { font-size: 20px; margin: 0 0 6px; }
h2 { font-size: 15px; margin: 18px 0 8px; }
main { padding: 0 20px 20px; display: grid; gap: 18px; }
section { background: #fff; border: 1px solid #dee2e6; border-radius: 8px; padding: 12px 14px; }
#graph svg { width: 100%; height: auto; display: block; }
.legend, .mode, footer { font-size: 12px; color: #495057; }
table { border-collapse: collapse; width: 100%; font-size: 13px; }
th, td { text-align: left; padding: 4px 8px; border-bottom: 1px solid #e9ecef; }
th { font-weight: 600; color: #343a40; }
td[data-status="stale"] { color: #9c36b5; }
td[data-status="observability_lost"] { color: #1971c2; }
td[data-status="healthy"] { color: #2f9e44; }
td[data-status="problem"] { color: #c92a2a; font-weight: 600; }
footer { padding: 0 20px 24px; }
code { background: #f1f3f5; padding: 1px 4px; border-radius: 3px; }