body{font-family:Arial,Helvetica,sans-serif;background:#f7f7f9;color:#222}
.container{max-width:920px;margin:24px auto;padding:18px;background:#fff;border-radius:8px;box-shadow:0 6px 18px rgba(0,0,0,.06)}
input[type=text],input[type=file],input{display:block;width:100%;padding:8px;margin:6px 0 12px;border:1px solid #ddd;border-radius:4px}
.controls{display:flex;gap:8px}
button{padding:10px 14px;border:0;background:#007bff;color:#fff;border-radius:4px;cursor:pointer}
button[disabled]{background:#ddd;color:#666;cursor:not-allowed}
#summary{margin-top:12px;padding:8px;background:#f1f9ff;border-radius:4px;border:1px solid #e1f0ff}
#log{height:260px;overflow:auto;background:#1e1e1e;color:#dcdcdc;padding:12px;border-radius:6px}
table{width:100%;border-collapse:collapse;margin-top:12px}
th,td{padding:8px;border:1px solid #eee;text-align:left}
th{background:#fafafa}
.send-btn{background:#28a745}
.send-btn[disabled]{background:#ccc}
.status-ok{color:green;font-weight:600}
.status-err{color:#c00;font-weight:600}