:root{
  --bg:#080503; --panel:#120d07; --panel2:#0d0905;
  --ink:#f3ead8; --muted:#a89880; --faint:#897963;
  --gold:#f5b942; --gold2:#ffd97a; --ember:#ff6b35;
  --line:rgba(245,185,66,.16); --line2:rgba(245,185,66,.32);
  --mono:"JetBrains Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:"Inter","Segoe UI",system-ui,-apple-system,sans-serif;min-height:100vh;line-height:1.6}
#hashrain{position:fixed;inset:0;z-index:0;opacity:.5;pointer-events:none}
main{position:relative;z-index:1;max-width:1060px;margin:0 auto;padding:0 22px 60px}
a{color:var(--gold2)}
code{font-family:var(--mono);font-size:.85em;background:rgba(245,185,66,.1);border:1px solid var(--line);border-radius:6px;padding:1px 7px;color:var(--gold2)}
code.cmd{display:block;margin:10px 0;padding:12px 14px;overflow-x:auto;white-space:nowrap}

/* nav */
.nav{position:relative;z-index:2;max-width:1060px;margin:0 auto;padding:18px 22px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.nav .back{color:var(--muted);text-decoration:none;font-size:.9rem}
.nav .back:hover{color:var(--gold2)}
.nav .brand{font-family:var(--mono);font-weight:700;letter-spacing:.08em;color:var(--gold)}
.nav .brand span{color:var(--muted);font-weight:400}
.nav .links{margin-left:auto;display:flex;gap:16px;font-size:.9rem}
.nav .links a{color:var(--muted);text-decoration:none}
.nav .links a:hover{color:var(--gold2)}

/* hero */
.hero{text-align:center;padding:56px 0 40px}
.eyebrow{font-family:var(--mono);font-size:.78rem;letter-spacing:.28em;color:var(--ember);text-transform:uppercase;margin-bottom:16px}
.hero h1{font-size:clamp(2rem,5vw,3.4rem);line-height:1.12;letter-spacing:-.01em;margin-bottom:16px}
.hero h1 .gold{color:var(--gold);text-shadow:0 0 34px rgba(245,185,66,.45)}
.lede{max-width:640px;margin:0 auto 30px;color:var(--muted);font-size:1.08rem}
.lede strong{color:var(--ink)}
.facts{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.fact{border:1px solid var(--line);border-radius:12px;padding:10px 16px;background:rgba(18,13,7,.7);display:flex;flex-direction:column;min-width:130px}
.fact .k{font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--faint)}
.fact .v{font-weight:700;color:var(--gold2);font-size:1.02rem}

/* cards */
.card{background:linear-gradient(180deg,var(--panel),var(--panel2));border:1px solid var(--line);border-radius:20px;padding:30px;margin:26px 0;box-shadow:0 24px 60px rgba(0,0,0,.45),inset 0 1px 0 rgba(245,185,66,.08)}
.card-head h2{font-size:1.45rem;margin-bottom:6px;color:var(--gold2)}
.card-head .note{color:var(--muted);font-size:.92rem;margin-bottom:20px;max-width:720px}

/* calculator */
.calc-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.inputs label{display:block;margin-bottom:16px;font-size:.92rem;color:var(--muted)}
.inputs input,.inputs select{background:#080503;border:1px solid var(--line2);color:var(--ink);border-radius:10px;padding:11px 13px;font-size:1rem;font-family:var(--mono);width:100%}
.inputs input:focus,.inputs select:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(245,185,66,.18)}
.row{display:flex;gap:8px;margin-top:6px}
.row input{flex:1}
.row select{flex:0 0 110px}
.hint{display:block;font-size:.8rem;color:var(--faint);margin-top:6px}
.hint a{color:var(--gold)}
.adv{border:1px dashed var(--line2);border-radius:12px;padding:12px 14px;margin-top:6px}
.adv summary{cursor:pointer;color:var(--gold2);font-size:.9rem}
.adv label{margin:12px 0 0}
.results{background:#080503;border:1px solid var(--line2);border-radius:16px;padding:22px}
.res-main{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:18px}
.res-big{background:linear-gradient(160deg,rgba(245,185,66,.14),rgba(255,107,53,.06));border:1px solid var(--line2);border-radius:14px;padding:16px;text-align:center}
.res-big .num{display:block;font-family:var(--mono);font-size:1.7rem;font-weight:700;color:var(--gold);text-shadow:0 0 22px rgba(245,185,66,.35)}
.res-big .lbl{font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:.1em}
.res-list{display:grid;gap:2px}
.res-list>div{display:flex;justify-content:space-between;gap:12px;padding:8px 4px;border-bottom:1px solid rgba(245,185,66,.08);font-size:.92rem}
.res-list dt{color:var(--muted)}
.res-list dd{font-family:var(--mono);color:var(--ink);text-align:right}
.warn{margin-top:14px;border:1px solid rgba(255,107,53,.5);background:rgba(255,107,53,.08);color:#ffb59a;border-radius:10px;padding:10px 14px;font-size:.88rem}

/* emission */
#chart{width:100%;height:auto;display:block;border:1px solid var(--line);border-radius:14px;background:#080503}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:16px}
.stat{border:1px solid var(--line);border-radius:12px;padding:12px 14px;background:rgba(8,5,3,.6)}
.stat .k{display:block;font-family:var(--mono);font-size:.66rem;letter-spacing:.12em;text-transform:uppercase;color:var(--faint);margin-bottom:4px}
.stat .v{font-family:var(--mono);font-weight:700;color:var(--gold2)}

/* howto */
.steps{list-style:none;counter-reset:step;display:grid;gap:14px}
.steps li{counter-increment:step;border:1px solid var(--line);border-radius:14px;padding:16px 18px 16px 64px;position:relative;background:rgba(8,5,3,.55)}
.steps li::before{content:counter(step);position:absolute;left:18px;top:16px;width:30px;height:30px;border-radius:50%;background:linear-gradient(160deg,var(--gold),var(--ember));color:#1a0e02;font-family:var(--mono);font-weight:700;display:flex;align-items:center;justify-content:center;font-size:.95rem}
.steps li strong{color:var(--gold2)}

/* honesty */
.caveats{list-style:none;display:grid;gap:12px}
.caveats li{border-left:3px solid var(--ember);padding:4px 0 4px 16px;color:var(--muted);font-size:.94rem}
.caveats li strong{color:var(--ink)}

/* footer */
footer{text-align:center;color:var(--faint);font-size:.88rem;padding:34px 0 10px;line-height:2}
footer a{color:var(--gold)}
.donate .addr{font-family:var(--mono);font-size:.8rem;background:rgba(245,185,66,.1);border:1px solid var(--line2);color:var(--gold2);border-radius:8px;padding:4px 10px;cursor:pointer;max-width:100%;overflow:hidden;text-overflow:ellipsis}
.donate .addr:hover{border-color:var(--gold)}

@media(max-width:820px){
  .calc-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .res-main{grid-template-columns:1fr}
  .nav .links{display:none}
}

/* === v1.8 craft pass === */
:root{--focus:#f5b942}
body{font-family:var(--font-sans,Inter,system-ui,sans-serif)}
.nav.chrome{
  max-width:1060px;margin:0 auto;padding:14px 22px;
  background:rgba(8,5,3,.82);border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:14px;flex-wrap:wrap
}
.nav .brand{font-family:var(--font-mono,monospace)}
.qmb-switch > summary{border-color:rgba(245,185,66,.28);background:rgba(245,185,66,.06);color:var(--gold2)}
.qmb-switch[open] > summary{border-color:var(--gold);background:rgba(245,185,66,.12)}
.qmb-menu{background:rgba(12,8,4,.97);border-color:rgba(245,185,66,.22)}
.qmb-menu a:hover{background:rgba(245,185,66,.1)}
.qmb-menu a.current{background:rgba(245,185,66,.14);color:var(--gold)}
.hero{padding:64px 0 44px}
.card{transition:border-color .2s,transform .2s,box-shadow .25s}
.card:hover{transform:translateY(-2px);box-shadow:0 28px 64px rgba(0,0,0,.5),inset 0 1px 0 rgba(245,185,66,.1)}
.inputs input,.inputs select{transition:border-color .18s,box-shadow .18s}
.res-big .num{transition:color .25s}
.steps li{transition:border-color .2s,transform .15s}
.steps li:hover{border-color:var(--line2);transform:translateX(2px)}
.warn{animation:qmb-rise .35s ease}
@media(max-width:820px){
  .nav.chrome{padding:12px 16px}
  .nav .links{display:none}
  .hero{padding:40px 0 28px}
  .card{padding:22px 18px;border-radius:16px}
}
@media(prefers-reduced-motion:reduce){
  .card:hover,.steps li:hover{transform:none}
}

/* mobile overflow fix */
html,body{overflow-x:hidden;max-width:100%}
code.cmd{white-space:pre;overflow-x:auto;max-width:100%;display:block}
.donate .addr{max-width:100%;display:inline-block}
@media(max-width:820px){
  .steps li{padding-left:56px;padding-right:14px}
  .nav .brand{font-size:.85rem}
}