.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px;
}

.header {
  margin-bottom: 30px;
}

.header h1 {
  font-size: 2rem;
  color: #fff;
  margin: 0;
}

.main {
  width: 100%;
  max-width: 900px;
  padding: 0 20px;
}

@media (max-width: 600px) {
  .header h1 {
    font-size: 1.5rem;
  }

  .main {
    padding: 0 10px;
  }
}
