:root{color-scheme:light;--ink:#18302d;--muted:#71807b;--line:#e5eae6;--green:#217d62;--red:#c8594d;--amber:#d2a143;--bg:#f4f6f2;--unknown:#dce2dc}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.55 Inter,Segoe UI,Arial,sans-serif}button,select{font:inherit;color:inherit}button{cursor:pointer}button:focus-visible,a:focus-visible,select:focus-visible{outline:3px solid #7fbbdf;outline-offset:3px}.layout{display:grid;grid-template-columns:210px 1fr;min-height:100vh}aside{background:#173d34;color:#e8f0e9;padding:34px 22px;position:sticky;top:0;height:100vh;display:flex;flex-direction:column}.brand{font-size:16px;font-weight:600;display:flex;align-items:center;gap:12px;white-space:nowrap}.brand-icon{font-size:28px;color:#b7d3a7}nav{display:grid;gap:8px;margin-top:62px}nav a{color:#b6cec1;padding:12px 15px;text-decoration:none;border-radius:8px}nav a:hover,nav a.active{background:#305347;color:#fff}.side-note{margin-top:auto;font-size:12px;color:#e2eadd}.side-note span{font-size:11px;color:#9eb8aa}main{width:100%;max-width:1570px;margin:auto;padding:36px 44px 24px;min-width:0}header{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:27px}.eyebrow{font-size:10px;letter-spacing:2px;color:var(--green);font-weight:700}h1{font-size:30px;font-weight:600;letter-spacing:-1px;line-height:1.3;margin:6px 0}h2{font-size:16px;font-weight:600;margin:0}p{margin:3px 0;color:var(--muted)}.controls{display:flex;align-items:center;gap:8px}.controls label{color:var(--muted);font-size:12px}.controls button,.controls select,#methods-button{border:1px solid #dce3db;background:#fff;border-radius:7px;padding:8px 12px}.controls #refresh{font-size:20px;padding:2px 12px}.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin:0 0 22px}.stat{border:1px solid var(--line);border-radius:11px;background:#fff;padding:18px 20px}.stat span{color:var(--muted);font-size:12px}.stat strong{display:block;font-size:29px;font-weight:550;letter-spacing:-1px;margin:5px 0}.stat small{font-size:11px;color:var(--muted)}.panel{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px 24px;margin-bottom:22px;min-width:0}.section-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:19px}.muted{color:var(--muted);font-size:11px}.topology{display:grid;grid-template-columns:minmax(240px,1fr) 1.8fr;gap:50px;align-items:center;padding:6px 15px 20px}.network-column{max-width:350px}.node{border:1px solid var(--line);border-radius:9px;padding:13px 16px;min-height:75px;background:#fafbf9}.node-top{display:flex;align-items:center;gap:9px}.node strong{font-size:13px;font-weight:600}.node p{font-size:11px;margin:4px 0 0 18px}.dot{width:8px;height:8px;border-radius:50%;display:inline-block;flex-shrink:0}.up{background:var(--green)}.down{background:var(--red)}.mixed{background:var(--amber)}.unknown{background:var(--unknown)}.connector{text-align:center;color:#cad6cb;height:16px;line-height:15px}.branch{border-left:1px dashed #c9d6cc;padding-left:34px}.branch-label{font-size:11px;color:var(--muted);margin:5px 0 9px}.vpn-pair{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:21px}.route-note{font-size:10px;color:var(--muted);max-width:470px}.observer{padding:11px 15px;border-radius:6px;background:#f6f5ee;color:#7f765a;font-size:12px}.legend{display:flex;flex-wrap:wrap;gap:12px;font-size:10px;color:var(--muted)}.legend span{display:flex;gap:5px;align-items:center}.legend i{width:7px;height:7px;border-radius:2px}.timeline-row{display:grid;grid-template-columns:130px 1fr;gap:12px;align-items:center;margin:12px 0;font-size:11px}.cells{display:flex;height:18px;gap:2px;min-width:0}.cell{flex:1;border-radius:2px;min-width:1px;border:0;padding:0;cursor:default}.cell:hover{outline:2px solid #465a51;z-index:1}.time-axis{display:flex;justify-content:space-between;margin-left:142px;color:var(--muted);font-size:10px}.charts{display:grid;grid-template-columns:1fr 1fr;gap:22px}.chart{height:195px;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:12px}.chart svg{width:100%;height:100%;overflow:visible}.chart-legend{display:flex;gap:18px;flex-wrap:wrap;font-size:11px;margin-top:12px}.chart-legend span{display:flex;align-items:center;gap:6px}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;font-size:12px;white-space:nowrap}th{font-weight:500;color:var(--muted);text-align:left;font-size:10px;letter-spacing:.25px;padding:0 10px 10px}td{border-top:1px solid #edf0eb;padding:13px 10px}td small{display:block;font-size:10px;color:var(--muted);max-width:360px;white-space:normal}.pill{padding:3px 7px;background:#f2f4f0;border-radius:5px;font-size:11px;display:inline-flex;align-items:center;gap:6px}.coverage{display:inline-block;width:50px;height:4px;background:var(--unknown);margin-right:8px;border-radius:3px;overflow:hidden}.coverage b{display:block;height:100%;background:#769986}.methods{background:#f5f7f3;border-radius:7px;padding:14px 17px;margin-bottom:16px;font-size:12px}.methods p{margin:6px 0}.notice{border:1px solid #ead1c8;background:#fff5ef;color:#963c2f;padding:14px;border-radius:7px;margin-bottom:20px}footer{display:flex;justify-content:space-between;color:var(--muted);font-size:10px;padding:0 2px 15px}[hidden]{display:none!important}@media(max-width:1100px){main{padding:26px 22px}.layout{grid-template-columns:175px 1fr}aside{padding:30px 16px}.brand{font-size:13px}.topology{gap:20px;padding:4px 0 15px}.branch{padding-left:20px}.stats{gap:10px}.stat{padding:14px}.legend{max-width:230px}}@media(max-width:760px){.layout{display:block}aside{height:auto;position:static;padding:12px 18px;display:block}.brand{font-size:15px}nav,.side-note{display:none}main{padding:23px 15px}header{align-items:flex-start;flex-direction:column;gap:16px}h1{font-size:27px}.controls{width:100%;flex-wrap:wrap}.stats{grid-template-columns:repeat(2,minmax(0,1fr))}.stat strong{font-size:26px}.panel{padding:18px 15px}.section-head{align-items:flex-start;flex-direction:column;gap:10px}.topology{grid-template-columns:1fr;gap:18px}.network-column{max-width:none;display:grid;grid-template-columns:1fr;gap:0}.branch{padding-left:0;border:0}.vpn-pair{gap:9px}.charts{grid-template-columns:1fr;gap:0}.timeline-row{grid-template-columns:100px 1fr;gap:8px;font-size:10px}.cells{gap:1px;height:15px}.time-axis{margin-left:108px;font-size:9px}footer{gap:10px;flex-direction:column}.legend{max-width:none}.node{padding:11px}.chart{height:180px}}

/* Dense history must remain inside the viewport on a narrow display. */
.cell{min-width:0}@media(max-width:760px){.cells{gap:.5px}}
button:disabled{opacity:.5;cursor:wait}