/* Network Tools — layout: grouped left rail of tools (tab strip on phones), one tool panel at a time.
   Look: a quiet NOC console. Cool slate neutrals, one signal-blue accent, mono for every address. */

:root{
  --bg:#eef1f6;        --bg-grid:#d9dfea;
  --panel:#ffffff;     --panel-2:#f7f9fc;   --sunk:#eef1f7;
  --line:#d6dce8;      --line-2:#c3cbdb;
  --fg:#141a26;        --muted:#5a6479;     --faint:#8a93a6;
  --accent:#2457e6;    --accent-2:#e7eeff;  --accent-ink:#ffffff; --brand-ink:#0d2a6e;
  --live:#0f9d7a;
  --ok:#11804b;  --okbg:#e2f4ea;
  --warn:#a86400; --warnbg:#fbefd9;
  --bad:#c42b2b; --badbg:#fbe4e4;
  --best:#d9480f;
  --shadow:0 1px 2px rgba(20,26,38,.05),0 6px 20px -8px rgba(20,26,38,.12);
  --display:"IBM Plex Sans Condensed","Arial Narrow",system-ui,sans-serif;
  --body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --r:10px;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0b0f17; --bg-grid:#18202e;
  --panel:#121823; --panel-2:#161d2a; --sunk:#0d121b;
  --line:#232c3c; --line-2:#2f3a4e;
  --fg:#e6eaf2; --muted:#98a2b6; --faint:#6b7489;
  --accent:#6e9bff; --accent-2:#18233d; --accent-ink:#0a1020; --brand-ink:#eef2ff;
  --live:#3fd6a8;
  --ok:#4ccb87; --okbg:#10291c; --warn:#f0b04a; --warnbg:#2f230d; --bad:#ff6b6b; --badbg:#351515;
  --best:#ff8a3d;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 10px 30px -12px rgba(0,0,0,.6);
  color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0b0f17; --bg-grid:#18202e;
  --panel:#121823; --panel-2:#161d2a; --sunk:#0d121b;
  --line:#232c3c; --line-2:#2f3a4e;
  --fg:#e6eaf2; --muted:#98a2b6; --faint:#6b7489;
  --accent:#6e9bff; --accent-2:#18233d; --accent-ink:#0a1020; --brand-ink:#eef2ff;
  --live:#3fd6a8;
  --ok:#4ccb87; --okbg:#10291c; --warn:#f0b04a; --warnbg:#2f230d; --bad:#ff6b6b; --badbg:#351515;
  --best:#ff8a3d;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 10px 30px -12px rgba(0,0,0,.6);
  color-scheme:dark}

*{box-sizing:border-box}
html,body{margin:0}
body{
  background:var(--bg);color:var(--fg);font:15px/1.55 var(--body);
  background-image:radial-gradient(var(--bg-grid) 1px,transparent 1.2px);
  background-size:22px 22px;background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent)}
::selection{background:var(--accent);color:var(--accent-ink)}
.ico{width:18px;height:18px;flex:none;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* ---------- shell ---------- */
.app{display:grid;grid-template-columns:252px 1fr;min-height:100vh}
nav.rail{
  background:var(--panel);border-right:1px solid var(--line);
  padding:20px 12px;position:sticky;top:0;height:100vh;
  display:flex;flex-direction:column;gap:2px;overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:11px;padding:2px 8px 20px}
.brandmark{width:40px;height:40px;flex:none;object-fit:contain}
.brand .txt{display:flex;flex-wrap:wrap;align-items:baseline;gap:0 6px;line-height:1}
.brand small{flex-basis:100%;font:500 11px var(--mono);color:var(--faint);letter-spacing:.04em;margin-top:5px}
/* wordmark rebuilt from the logo so it stays readable in both themes */
.wm{font:italic 800 22px/1 "Exo 2",var(--display);color:var(--brand-ink);letter-spacing:.01em}
.wm2{font:700 12px/1 var(--display);color:var(--accent);letter-spacing:.32em}
.hero-brand{display:flex;align-items:center;gap:18px}
.hero-brand img{width:96px;height:96px;flex:none;object-fit:contain;filter:drop-shadow(0 6px 18px color-mix(in srgb,var(--accent) 30%,transparent))}
.hero-wm{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.hero-wm .wm{font-size:clamp(38px,6vw,56px)}
.hero-wm .wm2{font-size:clamp(14px,2vw,18px);letter-spacing:.4em;position:relative;padding:0 4px}
.hero-brand .sub{margin-top:8px}
.navlab{font:600 10.5px var(--body);letter-spacing:.12em;text-transform:uppercase;color:var(--faint);padding:14px 12px 6px}
.rail a{
  display:flex;align-items:center;gap:11px;padding:9px 12px;border-radius:8px;
  text-decoration:none;color:var(--muted);font-weight:500;font-size:14.5px;position:relative;
  transition:background .15s,color .15s;
}
.rail a:hover{background:var(--sunk);color:var(--fg)}
.rail a.on{background:var(--accent-2);color:var(--accent)}
.rail a.on::before{content:"";position:absolute;left:-12px;top:8px;bottom:8px;width:3px;border-radius:0 3px 3px 0;background:var(--accent)}
.rail a .k{font:500 10.5px var(--mono);color:var(--faint);margin-left:auto}
.rail .foot{margin-top:auto;padding:14px 10px 0;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--faint)}
.rail .foot button{background:var(--sunk);border:1px solid var(--line);color:var(--fg);border-radius:7px;padding:5px 10px;cursor:pointer;font:500 12px var(--body)}
.rail .foot button:hover{border-color:var(--line-2)}

main{padding-block:32px 72px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));min-width:0}
.wrap{max-width:1080px;margin:0 auto;display:flex;flex-direction:column;gap:20px;min-width:0}
section[data-view]{animation:rise .25s ease-out}
@keyframes rise{from{opacity:.4;transform:translateY(4px)}to{opacity:1;transform:none}}

/* ---------- page header ---------- */
.ph{display:flex;gap:16px;align-items:flex-start}
.ph .badge{width:46px;height:46px;border-radius:12px;flex:none;display:grid;place-items:center;background:var(--panel);border:1px solid var(--line);color:var(--accent);box-shadow:var(--shadow)}
.ph .badge .ico{width:22px;height:22px}
h1{font:700 30px/1.15 var(--display);margin:0;letter-spacing:-.005em;text-wrap:balance}
h2{font:600 17px/1.3 var(--display);margin:0;letter-spacing:.01em}
.sub{color:var(--muted);margin:5px 0 0;max-width:68ch;font-size:14.5px}

/* ---------- cards & forms ---------- */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:20px;display:flex;flex-direction:column;gap:16px;min-width:0;box-shadow:var(--shadow)}
.row{display:flex;flex-wrap:wrap;gap:12px;align-items:end}
.field{display:flex;flex-direction:column;gap:6px;flex:1 1 200px;min-width:0}
label{font-size:11px;font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:var(--muted)}
input,select,textarea{
  font:14px var(--mono);background:var(--panel-2);color:var(--fg);
  border:1px solid var(--line);border-radius:8px;padding:10px 12px;width:100%;
  transition:border-color .15s,box-shadow .15s,background .15s;
}
input:hover,select:hover,textarea:hover{border-color:var(--line-2)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-2);background:var(--panel)}
input[type=checkbox]{width:16px;height:16px;accent-color:var(--accent);padding:0}
textarea{min-height:150px;resize:vertical;line-height:1.5}
button:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
button.go{
  font:600 14px var(--body);background:var(--accent);color:var(--accent-ink);border:0;border-radius:8px;
  padding:11px 20px;cursor:pointer;white-space:nowrap;display:inline-flex;align-items:center;gap:8px;
  box-shadow:0 1px 0 rgba(255,255,255,.15) inset,0 4px 14px -6px var(--accent);transition:filter .15s,transform .05s;
}
button.go:hover{filter:brightness(1.08)}
button.go:active{transform:translateY(1px)}
button.go:disabled{opacity:.55;cursor:wait}
button.ghost{font:500 13.5px var(--body);background:var(--panel);color:var(--fg);border:1px solid var(--line);border-radius:8px;padding:9px 14px;cursor:pointer;display:inline-flex;align-items:center;gap:7px;transition:border-color .15s,background .15s}
button.ghost:hover{border-color:var(--line-2);background:var(--sunk)}
.check{display:flex;gap:8px;align-items:center;text-transform:none;letter-spacing:0;font-size:14px;font-weight:500;color:var(--fg);cursor:pointer}

.seg{display:inline-flex;background:var(--sunk);border:1px solid var(--line);border-radius:9px;padding:3px;gap:2px;flex-wrap:wrap;align-self:flex-start}
.seg button{font:500 13px var(--mono);background:transparent;color:var(--muted);border:0;border-radius:6px;padding:7px 16px;cursor:pointer;transition:background .15s,color .15s}
.seg button:hover{color:var(--fg)}
.seg button.on{background:var(--panel);color:var(--accent);box-shadow:0 1px 3px rgba(0,0,0,.12)}

.mono{font-family:var(--mono)}
.muted{color:var(--muted)}
.err{color:var(--bad);font-size:14px;background:var(--badbg);border-radius:8px;padding:10px 14px;margin:0}

/* ---------- tables, key/values, pills ---------- */
.tbl{overflow:auto;border:1px solid var(--line);border-radius:9px;background:var(--panel)}
table{border-collapse:collapse;width:100%;font-size:13.5px;font-variant-numeric:tabular-nums}
th,td{text-align:left;padding:9px 14px;border-bottom:1px solid var(--line);white-space:nowrap}
th{font:600 10.5px var(--body);letter-spacing:.09em;text-transform:uppercase;color:var(--muted);background:var(--panel-2);position:sticky;top:0;z-index:1}
tbody tr{transition:background .1s}
tbody tr:hover{background:var(--panel-2)}
tr:last-child td{border-bottom:0}
td.mono{font-family:var(--mono)}
td[data-c]:hover{color:var(--accent)}

.kv{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:9px;overflow:hidden}
.kv div{background:var(--panel);padding:11px 14px;display:flex;flex-direction:column;gap:3px;min-width:0;cursor:copy;transition:background .12s}
.kv div:hover{background:var(--panel-2)}
.kv span{font-size:10.5px;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);font-weight:600}
.kv b{font:500 14.5px var(--mono);word-break:break-all}

.pill{display:inline-flex;align-items:center;gap:5px;font:600 11.5px var(--mono);padding:3px 9px;border-radius:99px;letter-spacing:.03em}
.pill::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
.pill.ok{background:var(--okbg);color:var(--ok)}
.pill.warn{background:var(--warnbg);color:var(--warn)}
.pill.bad{background:var(--badbg);color:var(--bad)}
.pill.mut{background:var(--sunk);color:var(--muted)}

.stats{display:flex;flex-wrap:wrap;gap:10px}
.stat{border:1px solid var(--line);border-radius:9px;padding:10px 16px;min-width:120px;background:var(--panel-2)}
.stat b{display:block;font:600 20px var(--mono);letter-spacing:-.01em}
.stat span{font-size:12px;color:var(--muted)}

/* ---------- home ---------- */
.ipbox{
  position:relative;overflow:hidden;
  background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:28px;
  display:grid;grid-template-columns:1fr auto;gap:20px;align-items:center;box-shadow:var(--shadow);
}
.ipbox::after{ /* faint route-trace pattern behind the address */
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background:
    radial-gradient(circle at 88% 20%,var(--accent-2) 0,transparent 42%),
    repeating-linear-gradient(90deg,transparent 0 46px,var(--line) 46px 47px);
  -webkit-mask-image:linear-gradient(90deg,transparent 35%,#000 100%);mask-image:linear-gradient(90deg,transparent 35%,#000 100%);
}
.ipbox > *{position:relative;z-index:1}
.prompt{font:500 12.5px var(--mono);color:var(--faint)}
.prompt b{color:var(--accent);font-weight:500}
.ipbox .lab{display:flex;align-items:center;gap:8px;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:600}
.live{width:8px;height:8px;border-radius:50%;background:var(--live);box-shadow:0 0 0 0 var(--live);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 color-mix(in srgb,var(--live) 60%,transparent)}70%{box-shadow:0 0 0 8px transparent}100%{box-shadow:0 0 0 0 transparent}}
.ipbig{font:600 clamp(28px,5.4vw,50px)/1.05 var(--mono);letter-spacing:-.02em;cursor:copy;word-break:break-all;background:none;border:0;color:var(--fg);padding:0;text-align:left;transition:color .15s}
.ipbig:hover{color:var(--accent)}
.ip6{font:500 14px var(--mono);color:var(--muted);word-break:break-all;cursor:copy;background:none;border:0;padding:0;text-align:left}
.ip6:hover{color:var(--accent)}
.ipmeta{display:flex;flex-wrap:wrap;gap:8px}
.ipmeta span{display:inline-flex;gap:6px;align-items:baseline;font-size:13px;color:var(--muted);background:var(--panel-2);border:1px solid var(--line);border-radius:7px;padding:4px 10px}
.ipmeta b{color:var(--fg);font-weight:500;font-family:var(--mono)}

.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.tile{
  background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:18px;
  text-decoration:none;color:var(--fg);display:flex;flex-direction:column;gap:10px;
  transition:border-color .15s,transform .15s,box-shadow .15s;box-shadow:var(--shadow);
}
.tile:hover{border-color:var(--accent);transform:translateY(-2px)}
.tile .ti{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;background:var(--accent-2);color:var(--accent)}
.tile .ti .ico{width:20px;height:20px}
.tile p{margin:0;color:var(--muted);font-size:13.5px}
.tile .go-a{margin-top:auto;font:500 12.5px var(--mono);color:var(--accent)}

/* ---------- BGP map ---------- */
.mapwrap{
  overflow:auto;border:1px solid var(--line);border-radius:10px;
  background-color:var(--sunk);
  background-image:radial-gradient(var(--line) 1px,transparent 1.2px);background-size:18px 18px;
}
.mapwrap svg text{font-family:var(--mono)}
.node rect{fill:var(--panel);stroke:var(--line-2);stroke-width:1.2;filter:drop-shadow(0 1px 1.5px rgba(0,0,0,.08));transition:stroke .12s}
.node:hover rect{stroke:var(--accent)}
.node.origin rect{fill:var(--accent);stroke:var(--accent)}
.node.origin text{fill:var(--accent-ink)}
.node text{fill:var(--fg);font-size:12px;font-weight:500}
.node text.nm{fill:var(--muted);font-size:9.5px;font-weight:400}
.node.origin text.nm{fill:var(--accent-ink);opacity:.85}
.edge{fill:none;stroke:var(--faint);stroke-opacity:.45;stroke-width:1.2;transition:stroke .12s,stroke-opacity .12s}
.edge.hi{stroke:var(--accent);stroke-opacity:1;stroke-width:2.2}
.edge.best{stroke:var(--best);stroke-opacity:1;stroke-width:2.8}
.arrh{fill:var(--faint);fill-opacity:.7}
.arrh.hi{fill:var(--accent);fill-opacity:1}
.arrh.best{fill:var(--best);fill-opacity:1}
.node.hi rect{stroke:var(--accent);stroke-width:2}
.node.onbest rect{stroke:var(--best);stroke-width:2}
.node{cursor:pointer}
.bestline{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font:500 13px var(--mono);background:var(--panel-2);border:1px solid var(--line);border-radius:9px;padding:10px 12px}
.bestline .chip{border:1.5px solid var(--best);border-radius:6px;padding:2px 8px;background:var(--panel)}
.bestline .chip.o{background:var(--best);color:var(--panel);border-color:var(--best)}
.legend{display:flex;flex-wrap:wrap;gap:16px;font-size:12.5px;color:var(--muted);align-items:center}
.legend i{display:inline-block;width:26px;height:3px;border-radius:2px;vertical-align:middle;margin-right:6px}

/* ---------- misc ---------- */
.toast{position:fixed;bottom:calc(22px + env(safe-area-inset-bottom,0px));left:50%;transform:translate(-50%,8px);background:var(--fg);color:var(--bg);padding:9px 18px;border-radius:9px;font:500 13px var(--mono);opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;box-shadow:var(--shadow);z-index:20}
.toast.show{opacity:1;transform:translate(-50%,0)}
.spin{display:inline-block;width:14px;height:14px;border:2px solid var(--line);border-top-color:var(--accent);border-radius:50%;animation:sp .8s linear infinite;vertical-align:-2px}
@keyframes sp{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition:none!important}}

/* ---------- phones ---------- */
@media (max-width:820px){
  .app{grid-template-columns:1fr}
  nav.rail{position:sticky;top:0;height:auto;flex-direction:row;align-items:center;overflow-x:auto;padding:10px max(12px,env(safe-area-inset-left,0px));border-right:0;border-bottom:1px solid var(--line);z-index:5;gap:4px}
  .brand{padding:0 8px 0 0}
  .brand .txt,.navlab,.rail a .k,.rail .foot{display:none}
  .brandmark{width:32px;height:32px}
  .hero-brand img{width:64px;height:64px}
  .rail a{white-space:nowrap;padding:7px 11px}
  .rail a.on::before{display:none}
  .ipbox{grid-template-columns:1fr;padding:22px}
  .ph .badge{width:40px;height:40px}
  h1{font-size:25px}
}

/* ---------- routing history ---------- */
.verdict{border:1px solid var(--line);border-left:4px solid var(--ok);background:var(--okbg);border-radius:10px;padding:14px 16px;display:flex;flex-direction:column;gap:6px}
.verdict b{font:600 16px var(--display);letter-spacing:.01em;color:var(--ok)}
.verdict p,.verdict ul{margin:0;font-size:14px;color:var(--fg)}
.verdict ul{padding-left:18px;display:flex;flex-direction:column;gap:4px}
.verdict.warn{border-left-color:var(--warn);background:var(--warnbg)}
.verdict.warn b{color:var(--warn)}
.verdict.bad{border-left-color:var(--bad);background:var(--badbg)}
.verdict.bad b{color:var(--bad)}
.tl{border:1px solid var(--line);border-radius:10px;background:var(--panel-2);padding:12px 14px;display:flex;flex-direction:column;gap:6px;overflow-x:auto}
.tl-axis,.tl-row{display:grid;grid-template-columns:230px minmax(320px,1fr);gap:12px;align-items:center}
.tl-ticks{position:relative;height:18px;font:500 11px var(--mono);color:var(--faint)}
.tl-ticks span{position:absolute;transform:translateX(-50%);white-space:nowrap}
.tl-ticks span:first-child{transform:none}
.tl-ticks span:last-child{transform:translateX(-100%)}
.tl-lab{display:flex;gap:8px;align-items:baseline;font-size:12.5px;min-width:0}
.tl-lab a{text-decoration:none;font-weight:600}
.tl-lab span{color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tl-track{position:relative;height:14px;border-radius:4px;background:var(--sunk);border:1px solid var(--line)}
.tl-track i{position:absolute;top:2px;bottom:2px;border-radius:3px;background:var(--faint);opacity:.7}
.tl-row.on .tl-track i{background:var(--accent);opacity:1}
.tl-row.on .tl-track i:last-child{box-shadow:0 0 0 2px var(--accent-2)}
@media (max-width:820px){.tl-axis,.tl-row{grid-template-columns:150px minmax(260px,1fr)}}