/* QTC Mining Observatory — deep-space radar-station identity.
   Signal coral + phosphor teal on midnight indigo; animated radar sweep, scanlines. */
:root{
  --sig:#ff7849; --sig-deep:#e0521f; --sig-dim:rgba(255,120,73,.13);
  --teal:#2dd4bf; --danger:#ff3b5c; --ok:#34d399;
  --ink:#eef2ff; --muted:#8f97b8; --line:rgba(255,120,73,.16);
  --panel:rgba(10,13,24,.8); --panel2:rgba(16,21,38,.62);
}
body{background:
  radial-gradient(1000px 520px at 85% -8%, rgba(255,120,73,.09), transparent 60%),
  radial-gradient(800px 600px at 8% 10%, rgba(45,212,191,.07), transparent 55%),
  #05070e;}
#sigrain{position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.55}
.chrome .brand span{color:var(--sig)}

.hero{position:relative;overflow:hidden;border:1px solid var(--line);
  background:linear-gradient(165deg, rgba(28,16,10,.5), rgba(8,11,22,.72) 60%);}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background:
    radial-gradient(circle at 50% 50%, transparent 62%, rgba(255,120,73,.05) 63%, transparent 64%),
    repeating-linear-gradient(0deg, transparent 0 3px, rgba(255,255,255,.014) 3px 4px);}
.sweep{position:absolute;top:-40%;right:-12%;width:min(560px,70vw);aspect-ratio:1;
  border-radius:50%;pointer-events:none;opacity:.5;
  background:
    conic-gradient(from 0deg, rgba(255,120,73,.35), transparent 22%),
    radial-gradient(circle, transparent 55%, rgba(255,120,73,.12) 56%, transparent 57%),
    radial-gradient(circle, transparent 78%, rgba(255,120,73,.1) 79%, transparent 80%);
  -webkit-mask:radial-gradient(circle, #000 34%, transparent 35%);
  mask:radial-gradient(circle, #000 34%, transparent 35%);
  animation:sweep 9s linear infinite;}
@keyframes sweep{to{transform:rotate(360deg)}}
.eyebrow{color:var(--sig);letter-spacing:.22em;text-transform:uppercase;
  font-size:12px;font-weight:700}
.hero h1{font-size:clamp(34px,5.4vw,58px);line-height:1.04;margin:.4em 0 .35em;
  letter-spacing:-.02em}
.hero h1 .hl{background:linear-gradient(100deg,#ffc79e,#ff7849 45%,#e0521f);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.lede{max-width:70ch;color:var(--muted);font-size:16.5px;line-height:1.7}
.lede strong{color:var(--ink)}

.view-toggle{display:flex;gap:8px;margin-top:22px;flex-wrap:wrap}
.view-toggle button{border:1px solid var(--line);background:var(--panel2);color:var(--muted);
  border-radius:999px;padding:9px 18px;font-size:13.5px;font-weight:700;cursor:pointer;
  letter-spacing:.02em;transition:all .2s var(--ease)}
.view-toggle button:hover{color:var(--ink);border-color:rgba(255,120,73,.4)}
.view-toggle button.on{background:var(--sig-dim);border-color:var(--sig);color:var(--sig)}

.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
  gap:10px;margin-top:22px}
.fact{background:var(--panel2);border:1px solid var(--line);border-radius:14px;
  padding:14px 16px;display:flex;flex-direction:column;gap:6px;position:relative;overflow:hidden}
.fact::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--sig),transparent);opacity:.7}
.fact .k{font-size:11.5px;text-transform:uppercase;letter-spacing:.14em;color:var(--muted)}
.fact .v{font-size:22px;font-weight:800;color:var(--sig);font-variant-numeric:tabular-nums}
.fact .v.danger{color:var(--danger);text-shadow:0 0 18px rgba(255,59,92,.45)}
.fact .v.ok{color:var(--ok)}
.fact .s{font-size:12px;color:var(--muted)}
.note{color:var(--muted);font-size:14.5px;line-height:1.65;max-width:80ch}
.note code{background:rgba(255,120,73,.1);border:1px solid var(--line);
  padding:1px 7px;border-radius:6px;font-size:13px;color:var(--sig)}

.card{background:var(--panel);border:1px solid var(--line);border-radius:20px;
  padding:30px clamp(18px,4vw,40px);margin:26px 0;backdrop-filter:blur(8px)}
.card h2{font-size:clamp(22px,3vw,30px);margin:0 0 6px;letter-spacing:-.01em}
.card-sub{color:var(--muted);font-size:14.5px;line-height:1.7;max-width:82ch}
.card-sub strong{color:var(--sig)}
canvas.chart{width:100%;display:block;background:rgba(5,7,14,.65);
  border:1px solid var(--line);border-radius:16px;margin-top:16px}
#hhi-chart{margin-bottom:0;border-radius:16px 16px 0 0;border-bottom:none}
#field-chart{margin-top:0;border-radius:0 0 16px 16px}
.chart-note{color:var(--muted);font-size:13.5px;margin-top:10px;line-height:1.6}
.chart-note strong{color:var(--ink)}
.legend{display:flex;gap:18px;flex-wrap:wrap;margin-top:10px;font-size:13px;color:var(--muted)}
.legend .sw{display:inline-block;width:14px;height:4px;border-radius:2px;margin-right:6px;vertical-align:middle}

.table-wrap{overflow-x:auto;margin-top:16px;border:1px solid var(--line);border-radius:14px}
table.miners{width:100%;border-collapse:collapse;font-size:14px;min-width:640px}
table.miners th{position:sticky;top:0;text-align:left;padding:12px 14px;font-size:11.5px;
  text-transform:uppercase;letter-spacing:.12em;color:var(--muted);
  background:rgba(16,21,38,.95);border-bottom:1px solid var(--line);white-space:nowrap}
table.miners td{padding:11px 14px;border-bottom:1px solid rgba(255,120,73,.07);
  font-variant-numeric:tabular-nums}
table.miners tbody tr{transition:background .15s}
table.miners tbody tr:hover{background:rgba(255,120,73,.05)}
table.miners tr.cutoff td{background:rgba(255,59,92,.07);box-shadow:inset 3px 0 0 var(--danger)}
.addr-cell{display:flex;align-items:center;gap:8px}
.addr-cell code{font-size:13px;color:var(--ink)}
.addr-cell .mini{border:1px solid var(--line);background:transparent;color:var(--muted);
  border-radius:8px;padding:3px 9px;font-size:11.5px;cursor:pointer;font-weight:600}
.addr-cell .mini:hover{color:var(--sig);border-color:var(--sig)}
.addr-cell a.ext{color:var(--teal);text-decoration:none;font-size:12.5px;font-weight:600}
.addr-cell a.ext:hover{text-decoration:underline}
.share-bar{position:relative;min-width:130px;height:8px;background:rgba(255,255,255,.06);
  border-radius:99px;overflow:hidden;display:inline-block;vertical-align:middle}
.share-bar i{position:absolute;inset:0 auto 0 0;border-radius:99px;
  background:linear-gradient(90deg,var(--sig-deep),var(--sig))}
tr.cutoff .share-bar i{background:linear-gradient(90deg,#b81f3a,var(--danger))}
.rank-hot{color:var(--danger);font-weight:800}
.ghost-btn{margin-top:14px;border:1px solid var(--line);background:transparent;color:var(--sig);
  border-radius:999px;padding:10px 22px;font-size:13.5px;font-weight:700;cursor:pointer}
.ghost-btn:hover{background:var(--sig-dim);border-color:var(--sig)}

.read-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:14px;margin-top:18px}
.read{background:var(--panel2);border:1px solid var(--line);border-radius:14px;padding:18px 20px}
.read h3{margin:0 0 8px;font-size:15px;color:var(--sig);letter-spacing:.02em}
.read p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
.read strong{color:var(--ink)}
.read em{color:var(--ink);font-style:normal;border-bottom:1px dotted var(--sig)}

.source-list{margin:14px 0 0;padding-left:22px;color:var(--muted);font-size:14px;line-height:1.8}
.source-list li::marker{color:var(--sig)}
.source-list strong{color:var(--ink)}
.source-list code{font-size:12.5px;background:rgba(255,120,73,.08);padding:1px 6px;border-radius:5px;color:var(--sig)}

footer{border-top:1px solid var(--line);margin-top:40px;padding:26px 4px 60px;
  color:var(--muted);font-size:13.5px;line-height:2}
footer a{color:var(--sig)}
footer .addr{font-family:var(--font-mono);font-size:12px;background:var(--sig-dim);
  border:1px solid var(--line);color:var(--sig);border-radius:8px;padding:3px 10px;cursor:pointer}
footer .addr:hover{border-color:var(--sig)}

.status-err{background:rgba(255,59,92,.08);border:1px solid rgba(255,59,92,.4);color:#ffb3c2;
  border-radius:14px;padding:16px 20px;margin-top:20px;font-size:14.5px;line-height:1.6}
@media(max-width:640px){
  .sweep{opacity:.28}
  table.miners{font-size:13px}
}

/* a11y 2026-10-01: explicit link color (was browser-default #0000ee, fails on dark bg) */
a,a:visited{color:#2dd4bf}