:root{
  --bg:#0b0b0c; --fg:#eef0f1; --muted:#9aa0a6; --gold:#f4c95d; --card:#141417;
  --line:#1e1f23; --ok:#25d366;
}
*{box-sizing:border-box} html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,Inter}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:.2rem 0 .6rem} .muted{color:var(--muted)} .tiny{font-size:12px}

.topbar{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--line);position:sticky;top:0;background:#0b0b0ccc;backdrop-filter:saturate(140%) blur(10px);z-index:20}
.brand{display:flex;gap:10px;align-items:center;font-weight:700}
.logo{width:28px;height:28px;border-radius:6px}
.switcher{display:flex;gap:8px}
.chip{background:#1a1a1e;color:var(--fg);border:1px solid #26262b;padding:8px 12px;border-radius:999px;cursor:pointer}
.chip.active{border-color:var(--gold);color:var(--gold)}

.screen{display:none;max-width:960px;margin:0 auto;padding:16px 16px 88px}
.screen.active{display:block}

.balance-card{
  display:flex;justify-content:space-between;align-items:center;
  background:linear-gradient(180deg,#19191c,#111114);
  border:1px solid var(--line);border-radius:18px;padding:18px;margin:8px 0 12px
}
.caption{font-size:12px;color:var(--muted)}
.balance{font-size:32px;font-weight:800;letter-spacing:.3px}
.sub{color:var(--muted)}
.actions{display:flex;gap:8px}
.btn-mini{background:var(--gold);color:#1a1204;border:0;border-radius:12px;padding:8px 12px;font-weight:700;cursor:pointer}
.btn-mini.alt{background:transparent;color:var(--fg);border:1px solid #2a2a2f}

.price-row{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0}
.pill{border:1px solid var(--line);background:#141417;border-radius:999px;padding:8px 12px}
.pill.muted{color:var(--muted)}

.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px;margin:10px 0}
.badge{border:1px solid #3a3a3f;border-radius:999px;padding:4px 8px;color:#cfcfcf}
.row{display:flex;gap:12px;align-items:center}
.row.between{justify-content:space-between}

.progress{height:8px;background:#101012;border-radius:999px;border:1px solid var(--line);margin:10px 0}
.progress__bar{height:100%;background:var(--gold);border-radius:999px;width:0}

.referral{display:flex;justify-content:space-between;align-items:center}
.btn-primary{background:var(--gold);color:#1a1204;border:0;border-radius:14px;padding:12px 16px;font-weight:800;cursor:pointer}
.btn-primary.small{padding:10px 12px}
.btn-secondary{border:1px solid #2a2a2f;color:var(--fg);padding:10px 14px;border-radius:12px;display:inline-block}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:8px}
.tile{border:1px solid var(--line);background:#141417;border-radius:16px;padding:16px}
.tile__title{font-weight:700}
.tile__sub{color:var(--muted);font-size:14px;margin-top:4px}

.input-row{display:flex;flex-direction:column;gap:6px;margin:12px 0}
input[type=number]{background:#101013;color:var(--fg);border:1px solid #26262b;border-radius:12px;padding:12px}
.slider-wrap{margin:12px 0}
input[type=range]{width:100%}
.slider-meta{display:flex;justify-content:space-between;color:var(--muted);font-size:12px;margin-top:4px}
.preview{display:flex;justify-content:space-between;border-top:1px dashed #2a2a2f;padding-top:10px;margin-top:8px}

.list{list-style:none;padding:0;margin:0}
.list li{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid #15161a}
.list .g{color:var(--gold)}
.bullets{margin:0;padding-left:18px}
.bullets li{margin:8px 0}

.tabbar{
  position:fixed;left:0;right:0;bottom:0;height:64px;display:flex;gap:6px;
  border-top:1px solid var(--line);background:#0d0e11;backdrop-filter:saturate(120%) blur(8px);z-index:30
}
.tab{flex:1;background:transparent;color:var(--fg);border:0;font-weight:700}
.tab.active{color:var(--gold)}

.switch{position:relative;display:inline-block;width:44px;height:24px}
.switch input{opacity:0;width:0;height:0}
.slider{position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;background:#2a2a2f;transition:.2s;border-radius:999px}
.slider:before{content:\"\";position:absolute;height:18px;width:18px;left:3px;top:3px;background:#cfcfcf;border-radius:50%;transition:.2s}
input:checked + .slider{background:var(--ok)}
input:checked + .slider:before{transform:translateX(20px)}

.footer{text-align:center;color:var(--muted);padding:24px 16px;margin-bottom:72px}