:root{--ink:#0c0c0c;--panel:#161616;--line:#2a2a2a;--mute:#8d8d8d;--text:#f4f4f2;--volt:#d4ff3a;--hot:#ff5a36;
--cond:"Arial Narrow","Helvetica Neue Condensed","Roboto Condensed","Franklin Gothic Medium",Impact,sans-serif;
--sans:-apple-system,"Helvetica Neue","Segoe UI",Roboto,Arial,sans-serif}
*{box-sizing:border-box;margin:0}
html,body{background:var(--ink);color:var(--text);font-family:var(--sans);overflow-x:hidden}
body{min-height:100dvh;-webkit-tap-highlight-color:transparent}
main{max-width:640px;margin:0 auto;padding:max(18px,env(safe-area-inset-top)) 20px 40px}
button,select,a{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
.top{display:flex;justify-content:space-between;align-items:baseline;padding-bottom:18px}
.logo{font-family:var(--cond);font-weight:700;letter-spacing:.18em;font-size:15px}
.logo i{display:inline-block;width:7px;height:7px;background:var(--volt);border-radius:50%;margin-left:6px}
.tag{color:var(--mute);font-size:13px;text-transform:uppercase;letter-spacing:.12em}
.stage{position:relative;border:1px solid var(--line);border-radius:28px;padding:26px 18px 20px;background:
 radial-gradient(120% 70% at 50% 0,#1c2108 0,transparent 60%),var(--panel);overflow:hidden}
.ring{position:absolute;left:50%;top:128px;width:230px;height:230px;margin:-115px 0 0 -115px;border-radius:50%;
 border:2px solid var(--volt);opacity:0;pointer-events:none}
.ring.beat{animation:pulse .32s ease-out}
.ring.accent{border-color:var(--hot);animation:pulse2 .42s ease-out}
@keyframes pulse{0%{opacity:.9;transform:scale(.7)}100%{opacity:0;transform:scale(1.25)}}
@keyframes pulse2{0%{opacity:1;transform:scale(.7)}100%{opacity:0;transform:scale(1.4)}}
.readout{display:flex;align-items:center;justify-content:space-between;gap:6px;position:relative}
.num{text-align:center;flex:1}
.num output{display:block;font-family:var(--cond);font-weight:700;font-size:clamp(110px,34vw,168px);line-height:.9;letter-spacing:-.02em;font-variant-numeric:tabular-nums;color:var(--volt)}
.num small{display:block;color:var(--mute);text-transform:uppercase;letter-spacing:.2em;font-size:12px;margin-top:6px}
.step{width:52px;height:52px;border-radius:50%;border:1px solid var(--line);font-size:26px;line-height:1;background:#1d1d1d}
.step:active{background:var(--volt);color:#000}
input[type=range]{width:100%;margin:26px 0 14px;accent-color:var(--volt);height:28px}
.presets{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.presets button{border:1px solid var(--line);border-radius:14px;padding:10px 0;font-size:12px;text-transform:uppercase;letter-spacing:.1em;color:var(--mute);display:flex;flex-direction:column;gap:2px;align-items:center}
.presets b{font-family:var(--cond);font-size:22px;color:var(--text);letter-spacing:0}
.presets button.on{border-color:var(--volt);color:var(--volt)}
.go{display:block;width:100%;margin:18px 0 14px;background:var(--volt);color:#000;font-family:var(--cond);font-weight:700;font-size:26px;letter-spacing:.2em;padding:18px;border-radius:999px;min-height:60px}
.go.on{background:var(--hot);color:#fff}
.go.small{margin:0;font-size:16px;padding:14px 18px;flex:1;min-width:150px}
.row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.ghost{border:1px solid var(--line);border-radius:999px;padding:11px 18px;font-size:14px}
.ghost.tiny{margin-top:10px;font-size:12px;padding:8px 14px;color:var(--mute)}
.sel{display:flex;flex-direction:column;gap:3px;font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:var(--mute);flex:1;min-width:120px}
select{background:#1d1d1d;border:1px solid var(--line);border-radius:10px;padding:9px;font-size:14px;text-transform:none;letter-spacing:0}
.hint{color:var(--mute);font-size:13px;line-height:1.5;margin-top:14px}
.coach{margin-top:18px;border:1px solid var(--line);border-radius:28px;padding:22px 18px;background:var(--panel)}
.coach-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
h2{font-family:var(--cond);font-size:30px;letter-spacing:.04em;text-transform:uppercase}
.badge{font-size:11px;letter-spacing:.18em;border:1px solid var(--volt);color:var(--volt);border-radius:999px;padding:4px 10px}
.badge.unlocked{background:var(--volt);color:#000}
.coach p{font-size:15px;line-height:1.5;color:#cfcfcb;margin-bottom:16px}
.coach b{color:var(--text)}
.live{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:14px}
.live>div{background:#1d1d1d;border-radius:16px;padding:12px 14px}
.live small{display:block;font-size:11px;text-transform:uppercase;letter-spacing:.14em;color:var(--mute)}
.live strong{font-family:var(--cond);font-size:44px;font-variant-numeric:tabular-nums}
.live strong.bad{color:var(--hot)}.live strong.ok{color:var(--volt)}
.pay{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--volt);color:var(--volt);border-radius:999px;padding:14px 18px;text-decoration:none;font-size:15px;flex:1;min-width:150px;text-align:center}
.pay[hidden]{display:none}
footer{margin-top:22px;text-align:center;color:#666;font-size:12px}
:focus-visible{outline:2px solid var(--volt);outline-offset:3px}
@media (prefers-reduced-motion:reduce){.ring{animation:none!important}}
[hidden]{display:none!important}