body {
  margin: 0;
  font-family: Inter, Arial;
  background: radial-gradient(circle at top, #0b1220, #05070f);
  color: #e5e7eb;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
  padding: 20px;
  max-width: 1100px;
  margin: auto;
}

.card {
  background: rgba(17,24,39,0.85);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 14px;
  padding: 14px;
  backdrop-filter: blur(12px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
}

h2 {
  margin: 0 0 10px;
  font-size: 16px;
}

h3 {
  font-size: 11px;
  opacity: 0.7;
  margin: 10px 0 5px;
  text-transform: uppercase;
}

input {
  width: 100%;
  padding: 7px;
  margin: 3px 0;
  border-radius: 6px;
  border: 1px solid #374151;
  background: #0b1220;
  color: #fff;
  font-size: 12px;
}

button {
  width: 100%;
  margin-top: 6px;
  padding: 9px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-size: 12px;
}

button[type="submit"] {
  background: #2563eb;
}

#testBtn {
  background: #10b981;
}

.status, .health {
  margin-top: 8px;
  font-size: 12px;
  opacity: 0.8;
  text-align: center;
}

.json {
  background: #0b1220;
  padding: 10px;
  border-radius: 10px;
  font-size: 11px;
  height: 420px;
  overflow: auto;
  border: 1px solid rgba(255,255,255,0.05);
}

/* SAVE FLASH */
.flash {
  animation: flash 0.6s ease;
}

@keyframes flash {
  0% { background: rgba(17,24,39,0.85); }
  50% { background: rgba(20,83,45,0.6); }
  100% { background: rgba(17,24,39,0.85); }
}

/* mobile */
@media (max-width: 900px) {
  .grid {
    grid-template-columns: 1fr;
  }
}