:root{
  --bg:#0a0e13; --bg2:#0f151d; --card:#131b25; --card2:#172230;
  --line:#223041; --line2:#2c3e52;
  --text:#e9eff6; --muted:#8a99ab; --dim:#5f7186;
  --accent:#35d07f; --accent-d:#0d5f3a; --accent2:#3aa0ff; --danger:#ff6b6b; --warn:#f5b544;
  --radius:14px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:
    radial-gradient(900px 500px at 85% -8%, #14324a33 0, transparent 60%),
    radial-gradient(700px 400px at 5% 0%, #1c2b1f2e 0, transparent 55%),
    var(--bg);
  background-attachment:fixed;
  color:var(--text);
  font:16px/1.55 system-ui,"Segoe UI",Roboto,Arial,sans-serif;
  min-height:100vh;
}
.wrap{max-width:1080px;margin:0 auto;padding:0 18px}

/* header */
.topbar{position:sticky;top:0;z-index:40;background:rgba(10,14,19,.78);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:20px;height:64px}
.logo{display:flex;flex-direction:column;line-height:1.1;font-family:ui-monospace,"Cascadia Code",Consolas,monospace}
.logo-main{font-size:15px;font-weight:500;letter-spacing:1px;color:var(--muted)}
.logo-main b{font-weight:700;color:var(--accent)}
.logo-sub{font-size:9.5px;letter-spacing:.6px;color:var(--dim);text-transform:uppercase}
.tabs{display:flex;gap:4px;margin-left:auto;flex-wrap:wrap}
.tabs button{display:inline-flex;align-items:center;gap:7px;background:transparent;border:1px solid transparent;color:var(--muted);
  padding:8px 13px;border-radius:10px;font-size:14px;cursor:pointer;transition:.15s;font-weight:500}
.tabs button:hover{color:var(--text);background:#ffffff08}
.tabs button.active{color:var(--accent);background:#35d07f14;border-color:#35d07f33}
.tabs button svg{width:16px;height:16px}
.burger{display:none;margin-left:auto;background:transparent;border:1px solid var(--line);border-radius:10px;width:42px;height:38px;flex-direction:column;gap:4px;align-items:center;justify-content:center;cursor:pointer}
.burger span{width:18px;height:2px;background:var(--text);border-radius:2px}

/* panes */
.tabpane{display:none;animation:fade .25s ease}
.tabpane.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.pane-head{padding:30px 0 10px}
.pane-head h1{font-size:26px;margin:0 0 4px;letter-spacing:-.4px}
.pane-head p{margin:0;color:var(--muted);font-size:15px}

/* cards grid */
.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;padding-bottom:30px}
.card{background:linear-gradient(180deg,var(--card),var(--bg2));border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;transition:border-color .15s,transform .15s}
.card:hover{border-color:var(--line2)}
.card.span2{grid-column:span 2}
.card-h{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.card-h svg{width:20px;height:20px;color:var(--accent)}
.card-h h2{font-size:16px;margin:0;font-weight:600}

/* inputs */
.row{display:flex;gap:9px;flex-wrap:wrap;align-items:flex-end}
.row.wrap-row{gap:10px}
.field{display:flex;flex-direction:column;gap:5px}
.field label{font-size:11px;color:var(--dim);text-transform:uppercase;letter-spacing:.4px}
input,select{background:#0b1119;border:1px solid var(--line);color:var(--text);padding:11px 12px;border-radius:10px;
  font-size:14px;outline:none;transition:.15s;min-width:0}
.row>input{flex:1;min-width:160px}
input:focus,select:focus{border-color:var(--accent2);box-shadow:0 0 0 3px #3aa0ff22}
select{cursor:pointer}
button{border:1px solid var(--line2);border-radius:10px;padding:11px 16px;font-size:14px;font-weight:600;cursor:pointer;
  background:var(--card2);color:var(--text);transition:.15s;white-space:nowrap}
button:hover{border-color:var(--accent2);color:#fff}
button.accent{background:var(--accent);color:#062616;border-color:transparent}
button.accent:hover{filter:brightness(1.08)}
button:disabled{opacity:.55;cursor:default}

/* stat grid */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin-top:6px}
.stat{background:#0b1119;border:1px solid var(--line);border-radius:11px;padding:11px 13px}
.stat span{display:block;color:var(--dim);font-size:11px;text-transform:uppercase;letter-spacing:.5px;margin-bottom:3px}
.stat b{font-size:16px;font-weight:600;word-break:break-all;font-family:ui-monospace,Consolas,monospace}
.stat b.big{font-size:22px}
.stat b.ok{color:var(--accent)} .stat b.bad{color:var(--danger)} .stat b.warn{color:var(--warn)}

.mono-note{margin-top:12px;color:var(--dim);font-size:12px;word-break:break-all;font-family:ui-monospace,Consolas,monospace}

/* terminal output */
.term{background:#05080c;border:1px solid var(--line);border-radius:11px;padding:13px;margin-top:12px;min-height:44px;max-height:360px;
  overflow:auto;font:12.5px/1.5 ui-monospace,Consolas,monospace;color:#a9c0d4;white-space:pre-wrap;word-break:break-word}

/* checks */
.checks{margin-top:6px;display:flex;flex-direction:column;gap:8px}
.check{display:flex;align-items:center;justify-content:space-between;gap:10px;background:#0b1119;border:1px solid var(--line);
  border-radius:10px;padding:10px 12px}
.check .lbl{font-weight:600;font-size:14px}
.check .val{font-family:ui-monospace,Consolas,monospace;font-size:12px;color:var(--muted);word-break:break-all;text-align:right;max-width:60%}
.pill{font-size:11px;font-weight:700;padding:3px 9px;border-radius:20px;white-space:nowrap}
.pill.ok{background:#35d07f1f;color:var(--accent)} .pill.bad{background:#ff6b6b1f;color:var(--danger)} .pill.warn{background:#f5b5441f;color:var(--warn)}

/* compare */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:8px}
.compare .col{background:#0b1119;border:1px solid var(--line);border-radius:10px;padding:10px 12px}
.compare .col h4{margin:0 0 6px;font-size:12px;color:var(--accent2);text-transform:uppercase;letter-spacing:.5px}
.compare .col pre{margin:0;font:12px/1.5 ui-monospace,Consolas,monospace;color:#a9c0d4;white-space:pre-wrap;word-break:break-all}

/* channels */
.chan-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(88px,1fr));gap:8px;margin-top:10px}
.chan{background:#0b1119;border:1px solid var(--line);border-radius:9px;padding:9px;text-align:center}
.chan .n{font-size:16px;font-weight:700;font-family:ui-monospace,Consolas,monospace}
.chan .f{font-size:11px;color:var(--dim);margin-top:2px}
.chan.nonoverlap{border-color:#35d07f55;background:#35d07f10}

.out{margin-top:12px;font-size:15px}
.out .ok{color:var(--accent);font-weight:700}
.out .bad{color:var(--danger)}
.spin{color:var(--dim);font-size:13px}

.site-foot{border-top:1px solid var(--line);padding:20px 0;color:var(--dim);font-size:13px;margin-top:20px}

@media(max-width:820px){
  .tabs{position:fixed;top:64px;left:0;right:0;flex-direction:column;gap:2px;background:rgba(10,14,19,.97);
    padding:10px 18px;border-bottom:1px solid var(--line);display:none}
  .tabs.open{display:flex}
  .tabs button{justify-content:flex-start}
  .burger{display:flex}
  .cards{grid-template-columns:1fr}
  .card.span2{grid-column:span 1}
  .compare{grid-template-columns:1fr}
}