body{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;margin:0;padding:28px 16px;background:#141418;color:#eee}
.box{max-width:420px;margin:0 auto;background:#1f1f25;border-radius:14px;padding:24px;box-shadow:0 2px 14px #0006}
h1{font-size:21px;margin:0 0 8px;color:#f5be3c}p{color:#bbb;line-height:1.45}
input{width:100%;box-sizing:border-box;font-size:17px;padding:12px;border:1px solid #444;border-radius:9px;background:#141418;color:#eee;margin:10px 0}
button{width:100%;font-size:17px;padding:13px;border:0;border-radius:9px;background:#f5be3c;color:#141418;font-weight:700}
button:disabled{background:#666}#st{min-height:24px;margin-top:14px;font-weight:600}.hint{font-size:13px;color:#888}
.ok{color:#5fd38d}.bad{color:#ff7a7a}