* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: #0d1117; color: #c9d1d9; }

/* Topbar */
.topbar { background: #161b22; border-bottom: 1px solid #30363d; padding: 12px 24px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.topbar h1 { font-size: 20px; color: #f0f6fc; letter-spacing: -0.5px; }
.topbar h1 span { color: #58a6ff; }
.topbar nav { display: flex; gap: 8px; flex-wrap: wrap; }
.topbar nav a { color: #8b949e; text-decoration: none; font-size: 13px; padding: 6px 14px; border: 1px solid #30363d; border-radius: 6px; transition: all 0.15s; }
.topbar nav a:hover, .topbar nav a.active { color: #f0f6fc; border-color: #58a6ff; background: rgba(88,166,255,0.1); }

/* Layout */
.content { max-width: 1400px; margin: 0 auto; padding: 20px 24px; }
h2 { font-size: 18px; margin: 28px 0 12px; color: #f0f6fc; }
h2:first-child { margin-top: 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 20px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; margin-bottom: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 20px; }
.card { background: #161b22; border: 1px solid #30363d; border-radius: 8px; padding: 16px; }
.card h3 { font-size: 12px; color: #8b949e; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 10px; }

/* Badges */
.badge { display: inline-block; padding: 2px 6px; font-size: 11px; font-weight: 600; border-radius: 4px; text-transform: uppercase; letter-spacing: 0.5px; }
.grn { background: rgba(63,185,80,0.15); color: #3fb950; }
.red { background: rgba(248,81,73,0.15); color: #f85149; }
.ylw { background: rgba(210,153,34,0.15); color: #d29922; }
.blu { background: rgba(88,166,255,0.15); color: #58a6ff; }
.gry { background: rgba(139,148,158,0.15); color: #8b949e; }

/* Stats */
.stat { display: flex; flex-direction: column; gap: 2px; }
.stat .label { font-size: 11px; color: #8b949e; text-transform: uppercase; letter-spacing: 0.5px; }
.stat .value { font-size: 20px; font-weight: 600; }

/* Provider Grid */
.prov-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; }
.prov-card { background: #161b22; border: 1px solid #30363d; border-radius: 8px; padding: 12px; display: flex; flex-direction: column; gap: 8px; }
.prov-card .name { font-size: 14px; font-weight: 600; }
.prov-card .latency { font-size: 12px; color: #8b949e; }
.prov-card .latency .val { font-size: 18px; font-weight: 600; color: #c9d1d9; }

/* Quick Links */
.quick-links { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.quick-links a { color: #58a6ff; text-decoration: none; font-size: 12px; }
.quick-links a:hover { text-decoration: underline; }

/* Latency Stats */
.latency-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 8px; }
.latency-stats .stat { text-align: center; }
.latency-stats .stat .label { font-size: 10px; }
.latency-stats .stat .value { font-size: 16px; }

/* Legend */
.legend-row { display: flex; align-items: center; gap: 6px; font-size: 12px; }
.legend-row .swatch { width: 12px; height: 12px; border-radius: 2px; }

/* Canvas */
canvas { width: 100% !important; height: auto !important; }

/* Responsive */
@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .prov-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
  .latency-stats { grid-template-columns: repeat(2, 1fr); }
  .content { padding: 12px 16px; }
}