body {
  font-family: system-ui, sans-serif;
  background: #1e1e1e;
  color: #f0f0f0;
  margin: 0;
}

header {
  background: #ff6b6b;
  color: #1e1e1e;
  padding: 2rem;
  text-align: center;
}

main {
  max-width: 800px;
  margin: auto;
  padding: 1.5rem;
}

.card {
  background: #2a2a2a;
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 6px 20px rgba(0,0,0,0.4);
}

.card h2 {
  margin-top: 0;
  color: #ffb703;
}

ul {
  padding-left: 1.2rem;
}

button {
  background: #ffb703;
  color: #1e1e1e;
  border: none;
  padding: 0.6rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  font-weight: bold;
}

button:hover {
  background: #ffd166;
}

.warning {
  border: 2px dashed #ff6b6b;
}

footer {
  text-align: center;
  padding: 1rem;
  font-size: 0.85rem;
  color: #aaa;
}