/* QTC Mining Studio — forge theme. Molten copper on deep charcoal. */
:root{
  --bg:#0b0a08; --panel:#14110c; --panel2:#1a1510;
  --line:rgba(245,158,11,.18); --line-hot:rgba(245,158,11,.5);
  --molten:#f59e0b; --molten2:#f97316; --ember:#ef4444;
  --cyan:#22d3ee; --ink:#f5ede0; --muted:#a89c86; --dim:#8a7b63;
  --ok:#34d399; --warn:#fbbf24; --bad:#f87171;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;min-height:100vh;overflow-x:hidden;line-height:1.6}
#embers{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.5}
main{position:relative;z-index:1;max-width:1120px;margin:0 auto;padding:0 22px 60px}
a{color:var(--molten)}
code{font-family:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.88em;background:rgba(245,158,11,.1);border:1px solid var(--line);border-radius:6px;padding:1px 7px;color:#ffd9a0;white-space:nowrap}
::selection{background:rgba(245,158,11,.35)}
.skip-link{position:absolute;left:-9999px;top:8px;background:var(--molten);color:#111;padding:8px 14px;border-radius:8px;z-index:99}
.skip-link:focus{left:8px}

/* Nav */
header.nav{position:sticky;top:0;z-index:40;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 22px;background:rgba(11,10,8,.85);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);max-width:none}
header.nav .back{color:var(--muted);text-decoration:none;font-weight:600}
header.nav .back:hover{color:var(--molten)}
header.nav .brand{font-weight:800;letter-spacing:.04em}
header.nav .brand span{color:var(--molten)}
.nav-end{display:flex;align-items:center;gap:14px}
nav.links{display:flex;gap:14px}
nav.links a{color:var(--muted);text-decoration:none;font-size:13px;font-weight:600}
nav.links a:hover{color:var(--molten)}
@media(max-width:900px){nav.links{display:none}}

/* Hero */
.hero{padding:56px 0 8px;text-align:left}
.eyebrow{color:var(--molten);font-size:12.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase}
.hero h1{font-size:clamp(34px,5.4vw,58px);line-height:1.05;letter-spacing:-.02em;margin:10px 0 14px}
.molten{background:linear-gradient(100deg,var(--molten),var(--ember));-webkit-background-clip:text;background-clip:text;color:transparent}
.lede{color:var(--muted);font-size:17px;max-width:760px}
.facts{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 10px}
.fact{display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:10px 16px;min-width:130px}
.fact .k{font-size:11px;color:var(--dim);text-transform:uppercase;letter-spacing:.08em}
.fact .v{font-weight:800;font-size:15px;color:var(--ink)}
.ver-note{font-size:12.5px;color:var(--dim)}

/* Studio nav */
.studio-nav{position:sticky;top:61px;z-index:30;display:flex;gap:8px;overflow-x:auto;padding:12px 2px;margin:18px 0 8px;background:rgba(11,10,8,.8);backdrop-filter:blur(10px)}
.sn{flex:0 0 auto;color:var(--muted);text-decoration:none;font-size:13.5px;font-weight:700;padding:8px 14px;border:1px solid var(--line);border-radius:999px;background:var(--panel)}
.sn:hover{color:var(--molten);border-color:var(--line-hot)}
.sn.active{color:#14100a;background:linear-gradient(100deg,var(--molten),var(--molten2));border-color:transparent}

/* Panels */
.panel{background:linear-gradient(180deg,var(--panel),rgba(20,17,12,.6));border:1px solid var(--line);border-radius:18px;padding:28px;margin:26px 0;scroll-margin-top:130px}
.p-head h2{font-size:24px;letter-spacing:-.01em;display:flex;align-items:center;gap:10px}
.p-ico{display:inline-flex;width:38px;height:38px;align-items:center;justify-content:center;background:rgba(245,158,11,.12);border:1px solid var(--line-hot);border-radius:12px;font-size:19px}
.p-head p{color:var(--muted);font-size:14.5px;max-width:820px;margin-top:8px}
.p-head p em{color:var(--warn);font-style:normal;font-weight:700}
.src-line{font-size:12.5px;color:var(--dim);margin-top:18px}
.src-line a{color:var(--muted)}

/* Wizard */
.os-tabs{display:flex;gap:8px;margin:20px 0 4px;flex-wrap:wrap}
.os-tab{background:var(--panel2);border:1px solid var(--line);color:var(--muted);font-weight:700;font-size:14px;padding:10px 20px;border-radius:12px;cursor:pointer}
.os-tab:hover{color:var(--molten);border-color:var(--line-hot)}
.os-tab.active{color:#14100a;background:linear-gradient(100deg,var(--molten),var(--molten2));border-color:transparent}
.knobs{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin:16px 0;padding:16px;background:rgba(0,0,0,.28);border:1px solid var(--line);border-radius:14px}
.knobs label{display:flex;flex-direction:column;gap:6px;font-size:12.5px;color:var(--muted);font-weight:600}
.knobs label.check{flex-direction:row;align-items:center;gap:10px;font-size:13.5px}
.knobs input[type=text],.knobs input[type=number],.knobs input:not([type]){background:#0d0b08;border:1px solid var(--line);color:var(--ink);border-radius:9px;padding:9px 12px;font-size:14px;font-family:inherit;width:100%}
.knobs input:focus{outline:2px solid var(--molten);border-color:transparent}
.knobs input[type=checkbox]{width:18px;height:18px;accent-color:var(--molten)}
.step{border:1px solid var(--line);border-radius:14px;margin:14px 0;overflow:hidden;background:rgba(0,0,0,.22)}
.step-head{display:flex;align-items:center;gap:12px;padding:14px 18px;background:rgba(245,158,11,.06);border-bottom:1px solid var(--line)}
.step-n{width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,var(--molten),var(--ember));color:#14100a;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:14px;flex:0 0 auto}
.step-head h3{font-size:16px}
.step-head p{font-size:13px;color:var(--muted);margin-left:auto;text-align:right;max-width:46%}
.cmd{position:relative;margin:0;border-top:1px solid rgba(245,158,11,.08)}
.cmd pre{padding:16px 18px;overflow-x:auto;font-family:ui-monospace,Menlo,monospace;font-size:13px;line-height:1.7;color:#ffd9a0;background:#0d0b08}
.cmd button.copy{position:absolute;top:10px;right:10px;background:var(--panel2);border:1px solid var(--line-hot);color:var(--molten);font-size:12px;font-weight:700;padding:6px 12px;border-radius:8px;cursor:pointer}
.cmd button.copy:hover{background:var(--molten);color:#14100a}
.step-note{padding:10px 18px;font-size:13px;color:var(--muted);border-top:1px dashed var(--line)}
.step-note.warn{color:#ffd9a0;background:rgba(239,68,68,.07)}

/* Rig builder */
.rig-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:18px}
@media(max-width:820px){.rig-grid{grid-template-columns:1fr}}
.rig-left,.rig-right{background:rgba(0,0,0,.25);border:1px solid var(--line);border-radius:14px;padding:18px}
.rig-left h3,.rig-right h3{font-size:15px;margin-bottom:12px;color:var(--molten)}
.add-row{display:flex;gap:8px;margin-bottom:12px;align-items:center;flex-wrap:wrap}
.add-row select,.add-row input,.rig-right input{background:#0d0b08;border:1px solid var(--line);color:var(--ink);border-radius:9px;padding:9px 12px;font-size:14px;font-family:inherit}
.add-row select{flex:1;min-width:180px}
.add-row input{width:64px}
.btn{background:linear-gradient(100deg,var(--molten),var(--molten2));border:none;color:#14100a;font-weight:800;padding:9px 18px;border-radius:9px;cursor:pointer;font-size:14px}
.btn:hover{filter:brightness(1.1)}
.cpu-row{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--muted)}
.hint{font-size:12.5px;color:var(--dim);margin:8px 0}
.rig-list{list-style:none;margin:12px 0}
.rig-list li{display:flex;align-items:center;gap:10px;padding:8px 10px;border:1px solid var(--line);border-radius:10px;margin-bottom:8px;font-size:14px;background:rgba(245,158,11,.04)}
.rig-list .rm{margin-left:auto;background:none;border:1px solid var(--line);color:var(--muted);border-radius:8px;padding:4px 10px;cursor:pointer;font-size:12px}
.rig-list .rm:hover{color:var(--bad);border-color:var(--bad)}
.rig-total{font-size:15px;border-top:1px solid var(--line);padding-top:12px}
.rig-total b{color:var(--molten);font-size:19px}
.rig-right label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted);margin-bottom:12px;font-weight:600}
.earn{margin-top:14px}
.earn-row{display:flex;justify-content:space-between;align-items:baseline;padding:10px 0;border-bottom:1px dashed var(--line);font-size:14px}
.earn-row span{color:var(--muted)}
.earn-row b{font-size:16px}
.earn-row b.big{font-size:24px;color:var(--molten)}
.disclaimer{font-size:12.5px;color:var(--warn);margin-top:12px}
.bench-table{margin-top:18px;border:1px solid var(--line);border-radius:12px;padding:6px 16px;background:rgba(0,0,0,.2)}
.bench-table summary{cursor:pointer;font-weight:700;padding:10px 0;color:var(--molten);font-size:14.5px}
.tbl-wrap{overflow-x:auto;margin:10px 0}
table{width:100%;border-collapse:collapse;font-size:13.5px}
th{text-align:left;color:var(--dim);font-size:11.5px;text-transform:uppercase;letter-spacing:.08em;padding:10px 12px;border-bottom:1px solid var(--line-hot)}
td{padding:10px 12px;border-bottom:1px solid var(--line);color:var(--ink)}
td.src,td .src{color:var(--dim);font-size:12.5px}
tr:hover td{background:rgba(245,158,11,.04)}

/* Benchmark */
.bench-grid{display:grid;grid-template-columns:1fr 1fr auto;gap:12px;align-items:end;margin-top:16px}
@media(max-width:700px){.bench-grid{grid-template-columns:1fr}}
.bench-grid label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted);font-weight:600}
.bench-grid select,.bench-grid input{background:#0d0b08;border:1px solid var(--line);color:var(--ink);border-radius:9px;padding:11px 12px;font-size:15px;font-family:inherit}
.big-btn{padding:11px 26px;font-size:15px}
.b-out{margin-top:16px}
.grade{border:1px solid var(--line);border-radius:14px;padding:18px;background:rgba(0,0,0,.25)}
.grade h3{font-size:17px;margin-bottom:6px}
.grade .verdict{display:inline-block;font-weight:800;font-size:13px;padding:4px 12px;border-radius:999px;margin:6px 0 10px}
.verdict.great{background:rgba(52,211,153,.15);color:var(--ok);border:1px solid var(--ok)}
.verdict.good{background:rgba(251,191,36,.12);color:var(--warn);border:1px solid var(--warn)}
.verdict.low{background:rgba(248,113,113,.12);color:var(--bad);border:1px solid var(--bad)}
.grade p{font-size:14px;color:var(--muted)}
.tips{margin-top:18px;list-style:none;display:grid;gap:10px}
.tips li{background:rgba(0,0,0,.22);border:1px solid var(--line);border-left:3px solid var(--molten);border-radius:10px;padding:12px 16px;font-size:14px;color:var(--muted)}
.tips li b{color:var(--ink)}

/* Wormhole */
.wh-flow{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:10px;align-items:stretch;margin:20px 0}
@media(max-width:760px){.wh-flow{grid-template-columns:minmax(0,1fr)}.wh-flow>*{min-width:0}.wh-arrow{transform:rotate(90deg);justify-self:center}}
.wh-step{background:rgba(0,0,0,.28);border:1px solid var(--line);border-radius:14px;padding:18px}
.wh-step h3{font-size:15px;margin:8px 0 6px;color:var(--molten)}
.wh-step p{font-size:13.5px;color:var(--muted)}
.wh-n{display:inline-flex;width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,var(--molten),var(--ember));color:#14100a;font-weight:800;align-items:center;justify-content:center;font-size:14px}
.wh-arrow{color:var(--molten);font-size:28px;align-self:center;font-weight:800}
.wh-facts{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:760px){.wh-facts{grid-template-columns:1fr}}
.wh-fact{background:rgba(245,158,11,.05);border:1px solid var(--line);border-radius:12px;padding:14px 16px;font-size:13.5px;color:var(--muted)}
.wh-fact b{color:var(--ink)}

/* Security */
.sec-progress{display:flex;align-items:center;gap:14px;margin:16px 0}
.sec-bar{flex:1;height:10px;background:rgba(0,0,0,.4);border:1px solid var(--line);border-radius:999px;overflow:hidden}
.sec-bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--molten),var(--ok));transition:width .4s}
#secCount{font-size:13px;color:var(--muted);font-weight:700;white-space:nowrap}
.sec-list{list-style:none;display:grid;gap:10px}
.sec-list li{display:flex;gap:14px;align-items:flex-start;background:rgba(0,0,0,.22);border:1px solid var(--line);border-radius:12px;padding:14px 16px;cursor:pointer;transition:border-color .2s}
.sec-list li:hover{border-color:var(--line-hot)}
.sec-list li.done{border-color:var(--ok);background:rgba(52,211,153,.05)}
.sec-list input{width:20px;height:20px;accent-color:var(--ok);margin-top:2px;flex:0 0 auto;cursor:pointer}
.sec-list .t b{display:block;font-size:14.5px}
.sec-list .t span{font-size:13px;color:var(--muted)}
.sec-list li.done .t b{text-decoration:line-through;color:var(--dim)}

/* Troubleshoot */
.fix-list{display:grid;gap:10px;margin-top:16px}
.fix{border:1px solid var(--line);border-radius:12px;background:rgba(0,0,0,.22);overflow:hidden}
.fix summary{cursor:pointer;padding:14px 18px;font-weight:700;font-size:15px;list-style:none;display:flex;gap:10px;align-items:center}
.fix summary::-webkit-details-marker{display:none}
.fix summary::before{content:"+";color:var(--molten);font-size:20px;font-weight:800}
.fix[open] summary::before{content:"–"}
.fix .body{padding:0 18px 16px 44px;font-size:14px;color:var(--muted)}
.fix .body ol,.fix .body ul{margin:8px 0 8px 18px;display:grid;gap:6px}
.fix .body b{color:var(--ink)}

/* Pools */
.sw-table td:first-child{white-space:nowrap}
.off{display:inline-block;font-size:10.5px;font-weight:800;background:rgba(52,211,153,.14);color:var(--ok);border:1px solid var(--ok);border-radius:999px;padding:2px 9px;margin-left:6px;vertical-align:middle}

/* Monitoring */
.mon-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:12px;margin-top:16px}
.mon{background:rgba(0,0,0,.25);border:1px solid var(--line);border-radius:12px;padding:16px}
.mon h3{font-size:14.5px;color:var(--cyan);margin-bottom:6px}
.mon p{font-size:13.5px;color:var(--muted);margin-bottom:8px}
.cmd-inline{display:block;font-family:ui-monospace,Menlo,monospace;font-size:12px;color:#ffd9a0;background:#0d0b08;border:1px solid var(--line);border-radius:8px;padding:10px 12px;overflow-x:auto;white-space:pre}

/* Footer */
footer.foot{margin-top:44px;border-top:1px solid var(--line);padding-top:22px;display:grid;gap:8px;font-size:13px;color:var(--dim)}
.foot-built a{color:var(--muted)}
.foot-donate .addr{background:rgba(245,158,11,.08);border:1px dashed var(--line-hot);color:var(--molten);font-family:ui-monospace,monospace;font-size:12px;padding:6px 10px;border-radius:8px;cursor:pointer;max-width:100%;overflow:hidden;text-overflow:ellipsis}
.foot-donate .addr:hover{background:rgba(245,158,11,.18)}

/* Mobile: allow code spans to wrap (the global white-space:nowrap would force
   horizontal scroll on narrow screens). */
@media (max-width:640px){
  code{white-space:normal}
}