:root { font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; }
body { margin: 0; background: #0b0f14; color: #e6edf3; }
.card {
  max-width: 720px; margin: 40px auto; padding: 24px;
  background: #111824; border: 1px solid #1f2a3a; border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,.3);
}
h1 { margin: 0 0 12px; font-size: 22px; }
.label { display:block; margin: 14px 0 6px; font-weight: 600; }
input, select {
  width: 100%; box-sizing: border-box;
  background: #0b1220; color: #e6edf3;
  border: 1px solid #22324a; border-radius: 10px;
  padding: 10px 12px;
}
button {
  margin-top: 16px; width: 100%;
  padding: 12px 14px; border: 0; border-radius: 10px;
  background: #2b7fff; color: white; font-weight: 700;
  cursor: pointer;
}
button:disabled { opacity: .6; cursor: not-allowed; }
.muted { color: #9db0c8; font-size: 13px; line-height: 1.35; }
.status { margin-top: 14px; min-height: 20px; }
.result { margin-top: 18px; }
.hidden { display:none; }
.download {
  display:inline-block; padding: 10px 12px;
  border-radius: 10px; background: #1c2b41; color: #e6edf3;
  text-decoration:none; border: 1px solid #2a3f60;
}
.details { margin-top: 18px; }