:root{color-scheme:dark;--bg:#080e1b;--panel:#111d30;--panel2:#142238;--border:#2a3c56;--text:#eaf2ff;--muted:#a9bdd6;--accent:#59e1cf}*{box-sizing:border-box}html{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}body{margin:0;background:radial-gradient(ellipse at 50% -20%,#1b3651 0%,var(--bg) 55%);color:var(--text);min-height:100vh}.wrap{width:min(1040px,calc(100% - 36px));margin:auto}.top{display:flex;align-items:center;justify-content:space-between;padding:28px 0;border-bottom:1px solid #23334a}.brand{text-decoration:none;font-size:25px;font-weight:800;letter-spacing:-.8px;color:var(--text)}.brand span{color:var(--accent)}nav{display:flex;gap:12px;align-items:center}nav a{color:var(--muted);text-decoration:none;font-size:13px;font-weight:700}nav a[aria-current]{color:var(--accent)}nav span{color:#567}.hero{padding:70px 0 38px;max-width:800px}.eyebrow{color:var(--accent);font-weight:800;font-size:12px;letter-spacing:2px}h1{font-size:clamp(34px,6vw,58px);line-height:1.08;letter-spacing:-1.8px;margin:15px 0 20px}h2,h3,p{margin-top:0}.hero p{font-size:18px;line-height:1.7;color:var(--muted);max-width:760px}.panel,.info,.crosslink{background:var(--panel);border:1px solid var(--border);border-radius:20px}.panel{padding:30px}.panel-head,.result-top{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.panel-head h2{font-size:22px;margin:0 0 24px}.pill{background:#1a3040;color:#a9e7dd;padding:8px 12px;border-radius:99px;font-size:12px;margin-bottom:24px}.dot{display:inline-block;width:7px;height:7px;background:var(--accent);border-radius:50%;margin-right:8px}label{display:block;color:#d0deee;font-size:14px;font-weight:600;margin-bottom:11px}.formline{display:flex;gap:12px}input{min-width:0;flex:1;background:#0b1627;border:1px solid #344b67;color:white;border-radius:10px;padding:15px 16px;font:inherit;outline:none}input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #59e1cf25}button{border:0;background:var(--accent);color:#062b30;border-radius:10px;font:inherit;font-weight:800;padding:14px 21px;cursor:pointer}button:hover{background:#88f1e4}button:disabled{opacity:.5;cursor:wait}.hint{color:var(--muted);font-size:13px;line-height:1.5;margin:13px 0 0}.results{margin-top:28px;border-top:1px solid var(--border);padding-top:23px}.results[hidden]{display:none}.result-top h3{margin:0;font-size:18px}.result-top span{font-size:13px;color:var(--accent)}.result-meta{color:var(--muted);font-size:13px;overflow-wrap:anywhere;margin:12px 0}pre{white-space:pre;overflow-x:auto;padding:20px;background:#080f1e;border:1px solid #25364e;border-radius:12px;line-height:1.7;font-size:13px;color:#d9e9fc;min-height:85px}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:24px}.info{padding:23px}.info h2{font-size:17px;margin-bottom:10px}.info p,.crosslink p{font-size:14px;line-height:1.7;color:var(--muted);margin-bottom:0}.crosslink{margin-top:24px;padding:25px;display:flex;align-items:center;justify-content:space-between;gap:18px}.crosslink h2{font-size:18px;margin-bottom:8px}.crosslink a{color:var(--accent);font-weight:800;text-decoration:none;white-space:nowrap}footer{padding:35px 0;color:#8298b1;font-size:12px}footer span{padding:0 7px}@media(max-width:700px){.hero{padding:45px 0 25px}.panel{padding:20px}.formline{flex-direction:column}button{width:100%}.cards{grid-template-columns:1fr}.crosslink{align-items:flex-start;flex-direction:column}.pill{margin-bottom:20px}}

.trace-status{display:inline-flex;align-items:center;gap:9px}
.trace-spinner{display:inline-block;width:15px;height:15px;border:2px solid #36596a;border-top-color:var(--accent);border-radius:50%;animation:trace-spin .75s linear infinite}
.trace-spinner[hidden]{display:none}
@keyframes trace-spin{to{transform:rotate(360deg)}}
@media(prefers-reduced-motion:reduce){.trace-spinner{animation:none;border-color:var(--accent)}}
#output{max-height:480px;overflow:auto}
/* Fixed-height traceroute output */
#output {
    height: clamp(360px, 55vh, 650px);
    min-height: 0;
    max-height: none;
    overflow-y: auto;
    overflow-x: auto;
    scrollbar-gutter: stable;
}