body {
  font-family: 'Segoe UI', sans-serif;
  background: #fcfcfc;
  color: #333;
  margin: 0;
  padding: 0;
}

header {
  background: linear-gradient(90deg, #673ab7, #512da8);
  color: white;
  text-align: center;
  padding: 1.5rem 1rem;
  box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

main.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  padding: 2rem;
}

.code-section {
  background: #212121;
  color: #e0e0e0;
  padding: 1rem;
  border-radius: 10px;
  box-shadow: 0 3px 6px rgba(0,0,0,0.15);
}

.code-section.secure {
  background: #263238;
}

pre {
  white-space: pre-wrap;
  word-break: break-word;
  font-family: monospace;
}

.form-section {
  max-width: 500px;
  margin: 2rem auto;
  background: #fff;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

label {
  display: block;
  margin-top: 1rem;
  font-weight: bold;
}

input {
  width: 100%;
  padding: 0.75rem;
  margin-top: 0.25rem;
  border: 1px solid #ccc;
  border-radius: 5px;
  font-size: 1rem;
}

.btns {
  margin-top: 1.5rem;
  display: flex;
  justify-content: space-between;
}

.btn {
  flex: 1;
  margin: 0 0.5rem;
  padding: 0.75rem;
  font-size: 1rem;
  font-weight: bold;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

.btn.red {
  background: #e53935;
}

.btn.green {
  background: #43a047;
}

footer {
  text-align: center;
  font-size: 0.9rem;
  color: #999;
  padding: 1rem;
  border-top: 1px solid #ddd;
  margin-top: 3rem;
}