body { font-family: Arial, sans-serif; margin:0; background:#f5f5f5; }
.wrap { max-width: 520px; margin: 0 auto; padding: 16px; }
.card { background:#fff; border-radius:14px; padding:14px; box-shadow:0 4px 18px rgba(0,0,0,.08); }
video { width:100%; border-radius:12px; background:#000; }
.row { display:flex; gap:10px; margin-top:12px; }
button { flex:1; padding:12px; border:0; border-radius:12px; font-size:16px; cursor:pointer; }
#btnCapture { background:#111; color:#fff; }
#btnSend { background:#2d7; color:#000; }
#btnSend:disabled { opacity:.4; cursor:not-allowed; }
.info { margin-bottom:10px; color:#333; }
.hint { margin-top:10px; color:#666; font-size:13px; }