body {
  background: #0b0f1a;
  color: white;
  font-family: system-ui;
  margin: 0;
}

.container {
  max-width: 900px;
  margin: auto;
  padding: 20px;
}

.card {
  background: #111827;
  padding: 15px;
  margin: 10px 0;
  border-radius: 10px;
}

input, textarea {
  width: 100%;
  padding: 10px;
  margin: 5px 0;
  background: #1f2937;
  color: white;
  border: none;
  border-radius: 8px;
}

button {
  padding: 10px;
  margin: 5px;
  background: #2563eb;
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

button.green { background: #22c55e; }
button.red { background: #ef4444; }

.topbar {
  display: flex;
  justify-content: space-between;
}