*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Helvetica,Arial,sans-serif;background:#0b1220;color:#e5e7eb;display:flex;flex-direction:column}
header{padding:24px 16px;text-align:center;background:linear-gradient(180deg,#0ea5e9 0%, #0b1220 100%);}
h1{margin:0;font-weight:800;letter-spacing:.3px}
.sub{margin:.25rem 0 0;opacity:.9}
main{flex:1;max-width:900px;margin:0 auto;padding:16px;display:grid;gap:16px}
.counter-card{background:#0f172a;border:1px solid #1f2937;border-radius:16px;padding:16px;display:grid;gap:12px;place-items:center}
.count{font-size:72px;font-weight:900;line-height:1;padding:6px 16px;border-radius:12px;background:#111827;border:1px solid #1f2937;min-width:160px;text-align:center}
.btn-row{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.btn{background:#111827;border:1px solid #374151;color:#e5e7eb;padding:10px 14px;border-radius:12px;cursor:pointer;font-weight:600}
.btn.primary{background:#0ea5e9;border-color:#38bdf8;color:#001014}
.btn.danger{background:#7f1d1d;border-color:#b91c1c}
.btn:disabled{opacity:.6;cursor:not-allowed}
.pill{background:#0b2f2f;border:1px solid #073131;color:#c7fffb;padding:6px 10px;border-radius:999px;cursor:pointer}
.quick-row{display:flex;gap:12px}
.status{font-size:14px;opacity:.9}
.controls{background:#0f172a;border:1px solid #1f2937;border-radius:16px;padding:16px}
.controls h2{margin-top:0}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
label{display:grid;gap:6px}
input[type=range],input[type=number]{width:100%}
.notes{background:#0f172a;border:1px solid #1f2937;border-radius:16px;padding:16px}
.muted{opacity:.8}
footer{padding:16px;text-align:center;opacity:.7}
canvas#level{width:100%;max-width:680px;height:60px;background:#0a0f1c;border-radius:10px;border:1px solid #1f2937}
@media (max-width:480px){.count{font-size:56px;min-width:130px}}