*{box-sizing:border-box}
html,body{margin:0;min-height:100%;font-family:Arial,Helvetica,sans-serif;background:#111;color:#fff}
body{display:flex;justify-content:center}
.app{width:min(100%,560px);padding:10px 12px max(28px,env(safe-area-inset-bottom))}
header{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:8px;min-height:30px}
.brand{font-weight:800;letter-spacing:1.5px;font-size:18px}
.preview-wrap{position:relative;width:100%;aspect-ratio:9/16;max-height:calc(100svh - 145px);margin:0 auto;overflow:hidden;border-radius:18px;background:#222;box-shadow:0 10px 35px rgba(0,0,0,.35)}
video{width:100%;height:100%;display:block;object-fit:cover;transform:scaleX(-1)}
.gameboy-preview{position:absolute;inset:0;width:100%;height:100%;display:block;image-rendering:pixelated;image-rendering:crisp-edges;object-fit:fill;z-index:1}
.frame-overlay{position:absolute;inset:0;width:100%;height:100%;object-fit:fill;pointer-events:none;z-index:2}
#countdown{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;z-index:3;font-size:clamp(52px,15vw,82px);font-weight:900;text-shadow:0 3px 15px #000}
.controls{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:10px}
button{border:0;border-radius:14px;padding:15px 12px;font-size:16px;font-weight:800;cursor:pointer;min-height:52px}
button:disabled{opacity:.45;cursor:not-allowed}
.primary{background:#fff;color:#111}
.secondary{background:#2d2d2d;color:#fff;border:1px solid #555}
.hint{font-size:13px;line-height:1.45;opacity:.72;text-align:center;margin:9px 4px}
.hidden{display:none!important}
.result-card{background:#1c1c1c;border-radius:18px;padding:10px;max-height:calc(100svh - 90px);overflow-y:auto;-webkit-overflow-scrolling:touch}
.result-item{padding:4px 0 18px}.result-item+.result-item{padding-top:18px;border-top:1px solid #333}.result-label{font-size:12px;font-weight:800;letter-spacing:1.2px;opacity:.7;margin:2px 4px 8px}.final-photo,.final-gif{width:100%;display:block;border-radius:12px;height:auto}.final-gif{margin-top:0}.save-single{width:100%;margin-top:10px}.result-controls{grid-template-columns:1fr 1fr}
@media (max-width:390px){
  .app{padding-left:8px;padding-right:8px}
  header{margin-bottom:6px}
  .brand{font-size:16px}
  .preview-wrap{border-radius:14px;max-height:calc(100svh - 132px)}
  .controls{gap:6px}
  button{padding:13px 9px;font-size:15px}
}
@media(min-width:700px){
  .app{width:430px}
  .preview-wrap{max-height:none}
}

.gb-toggle-row{display:flex;align-items:center;justify-content:center;gap:8px;margin:8px auto 0;font-size:12px;opacity:.9}.gb-toggle{border:1px solid rgba(255,255,255,.28);border-radius:999px;padding:5px 10px;min-width:42px;font-size:11px;font-weight:700;cursor:pointer}.gb-toggle.off{background:#222;color:#aaa}.gb-toggle.on{background:#9aa88a;color:#111;border-color:#c7d0bd}