:root{
  --bg:#000; --neon:#00ff66; --danger:#ff4d4d; --muted:#c5cbd0;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{font-family:Inter,Arial,Helvetica,sans-serif;background:linear-gradient(180deg,#000,#050505);color:var(--muted);overflow:hidden}
#app{position:relative;width:100vw;height:100vh;overflow:hidden}
video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transform:scaleX(-1);z-index:1}
canvas{display:none;z-index:1}
#overlay{position:absolute;inset:0;pointer-events:none;z-index:5}
/* full-screen flash */
.flash{position:absolute;inset:0;background: rgba(0,255,0,0.35);
  transition: background 0.2s;z-index:50;pointer-events:none}
.flash.show{opacity:1}
/* icons */
#icons{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center;gap:18px}
.icon{font-size:140px;opacity:0.08;transition:opacity 180ms,transform 180ms,filter 200ms;filter:drop-shadow(0 8px 30px rgba(0,0,0,0.6))}
.icon.active{opacity:1;transform:scale(1.06);filter:drop-shadow(0 12px 40px rgba(0,255,102,0.35))}
/* bubble */
#bubble-wrap{position:absolute;right:18px;top:18px;width:84px;height:84px;border-radius:50%;border:2px solid rgba(255,255,255,0.06);display:flex;align-items:center;justify-content:center;z-index:10;background:rgba(0,0,0,0.25)}
#bubble{width:18px;height:18px;border-radius:50%;background:var(--neon);transform:translate(0,0);transition:transform 0.06s linear}
/* settings button */
.settings-btn{position:absolute;right:18px;bottom:18px;pointer-events:auto;padding:8px;border-radius:8px;background:rgba(0,0,0,0.45);border:1px solid rgba(255,255,255,0.06);color:var(--muted);cursor:pointer;z-index:20}
#fps{position:absolute;left:12px;bottom:12px;background:rgba(0,0,0,0.4);padding:6px 8px;border-radius:6px;z-index:20}
/* modal */
#settingsModal{position:fixed;inset:0;display:none;align-items:center;justify-content:center;background:rgba(0,0,0,0.55);z-index:60;pointer-events:auto}
#settingsModal:not(.hidden){display:flex}
.modal-content{width:380px;max-width:94vw;background:linear-gradient(180deg,#071,#022);padding:16px;border-radius:12px;border:1px solid rgba(255,255,255,0.06);color:#eafaf0;box-shadow:0 12px 40px rgba(0,0,0,0.6)}
.modal-content h2{margin:0 0 10px 0;text-align:center}
.modal-content label{display:block;margin:8px 0;font-size:13px;color:#dffadf}
.modal-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:12px}
.btn{padding:8px 10px;border-radius:8px;background:transparent;border:1px solid rgba(255,255,255,0.06);color:var(--muted);cursor:pointer}
.btn.primary{background:linear-gradient(90deg,#06a,#0b7);color:#021}
.controls{position:absolute;left:50%;bottom:20px;transform:translateX(-50%);pointer-events:auto;z-index:20}
.big{font-size:16px;padding:12px 20px;border-radius:10px;background:linear-gradient(90deg,#06a,#0b7);border:none;color:#021;cursor:pointer}
.hidden{display:none}