body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  margin: 0;
  background: #0b0f17;
  color: #e9eef5;
}

header {
  background: #111827;
  padding: 1rem;
  text-align: center;
  border-bottom: 1px solid #1f2937;
}

header h1 {
  margin: 0;
  font-size: 1.6rem;
  color: #00e0ff;
}

.subtitle {
  font-size: 0.9rem;
  color: #9aa3ad;
  margin-top: 4px;
}

main {
  padding: 1rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.grid article {
  background: #15171c;
  padding: 0.8rem 1rem;
  border: 1px solid #1f2937;
  border-radius: 8px;
}

.grid h2 {
  font-size: 1.05rem;
  margin-top: 0;
  color: #8ab6ff;
}

ul {
  padding-left: 18px;
}

.actions {
  text-align: center;
  margin-top: 1rem;
}

button {
  margin: 0.3rem;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  border: 1px solid #1f2937;
  background: #1f2937;
  color: #e9eef5;
  cursor: pointer;
}

button.primary {
  background: #00e0ff;
  color: #0b0f17;
  border-color: #00e0ff;
}

button:hover {
  opacity: 0.85;
}