* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: #0f172a;
  color: #e2e8f0;
  min-height: 100vh;
}
.container { max-width: 800px; margin: 0 auto; padding: 2rem; }
header { margin-bottom: 2rem; }
header h1 { color: #fff; }
.subtitle { color: #94a3b8; }

main { display: grid; gap: 2rem; }
section { background: rgba(255,255,255,0.05); border-radius: 12px; padding: 1.5rem; }
h2 { color: #fff; margin-bottom: 1rem; }

.metrics-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1rem; }
.metric-card {
  background: linear-gradient(135deg, #1e40af 0%, #3730a3 100%);
  border-radius: 8px; padding: 1.5rem; text-align: center;
}
.metric-card h3 { font-size: 0.875rem; color: #93c5fd; margin-bottom: 0.5rem; }
.metric-card .value { font-size: 2rem; font-weight: bold; color: #fff; }

.latency-section { background: rgba(255,255,255,0.05); border-radius: 12px; padding: 1.5rem; }
canvas { width: 100%; background: rgba(255,255,255,0.02); border-radius: 4px; }