/* touch-action: çift dokunuşla yakınlaştırmayı kapatır */
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;touch-action:manipulation}
html,body{height:100%}
body{margin:0;display:grid;place-items:center;background:#0f172a;color:#e2e8f0;
  font:16px/1.4 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  padding:calc(20px + env(safe-area-inset-top)) 20px calc(20px + env(safe-area-inset-bottom));
  -webkit-user-select:none;user-select:none}
main{width:100%;max-width:340px;text-align:center}
h1{font-size:22px;margin:0 0 6px}
.alt{color:#94a3b8;font-size:14px;margin:0 0 28px}
.logo{width:72px;height:72px;border-radius:18px;margin-bottom:14px}
/* iOS, 16px altındaki alana odaklanınca yakınlaştırır; giriş alanı bu yüzden büyük */
input{width:100%;font-family:inherit;font-size:24px;text-align:center;letter-spacing:.3em;padding:14px;border-radius:14px;
  border:1px solid #334155;background:#1e293b;color:#e2e8f0;margin-bottom:12px;-webkit-user-select:text;user-select:text}
input:focus{outline:2px solid #2563eb;border-color:transparent}
.btn{appearance:none;width:100%;border:0;border-radius:14px;padding:16px;font-family:inherit;font-size:17px;font-weight:600;
  background:#2563eb;color:#fff;cursor:pointer}
.hata{color:#f87171;margin:0 0 12px}
.ac{appearance:none;width:180px;height:180px;border-radius:50%;border:0;background:#2563eb;color:#fff;cursor:pointer;
  box-shadow:0 12px 40px rgba(37,99,235,.45);display:inline-grid;place-items:center;transition:transform .12s,background .2s,box-shadow .2s}
.ac:active{transform:scale(.95)}
.ac .simge{font-size:76px}
.ac .sayac{font-size:64px;font-weight:700;font-variant-numeric:tabular-nums}
.ac [hidden]{display:none!important}
.ac.gonderiliyor{background:#1d4ed8;animation:nabiz 1s ease-in-out infinite}
.ac.basarili{background:#16a34a;box-shadow:0 12px 40px rgba(22,163,74,.45)}
.ac.hatali{background:#dc2626;box-shadow:0 12px 40px rgba(220,38,38,.45)}
.ac.bekliyor{background:#334155;box-shadow:none;cursor:not-allowed}
.ac:disabled{cursor:not-allowed}
@keyframes nabiz{50%{box-shadow:0 12px 60px rgba(37,99,235,.75)}}
#durum{min-height:24px;margin:26px 0 0;font-weight:600}
#durum.ok{color:#4ade80}
#durum.hata{color:#f87171}
#durum i{margin-right:6px}
.cikis{appearance:none;border:0;background:none;color:#64748b;font-family:inherit;font-size:13px;margin-top:40px;cursor:pointer;text-decoration:underline}