styles/globals.css

html,
body {
  padding: 0;
  margin: 0;
  font-family: 'Roboto', sans-serif;
  background: linear-gradient(135deg, #f5f7fa, #c3cfe2);
  color: #333;
}

a {
  color: inherit;
  text-decoration: none;
}

* {
  box-sizing: border-box;
}

h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  color: #444;
}

h2 {
  margin-bottom: 1.5rem;
  font-size: 1.8rem;
  border-bottom: 2px solid #eaeaea;
  padding-bottom: 0.5rem;
}

h3 {
  margin-bottom: 1rem;
  font-size: 1.4rem;
  color: #444;
}

p {
  margin: 0.5rem 0;
}

ul {
  padding-left: 1.5rem;
}

.button {
  background-color: #0070f3;
  color: white;
  border: none;
  border-radius: 25px;
  padding: 0.8rem 1.5rem;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.3s, transform 0.3s;
}

.button:hover {
  background-color: #0051a8;
  transform: translateY(-2px);
}

.error {
  background-color: #ffebee;
  border: 1px solid #f44336;
  border-radius: 8px;
  padding: 1rem;
  color: #b71c1c;
  margin: 1rem 0;
}

.result {
  background-color: #ffffff;
  border-radius: 8px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  padding: 1.5rem;
  margin-top: 2rem;
}

@media (prefers-color-scheme: dark) {
  html {
    color-scheme: dark;
  }
  body {
    color: white;
    background: #121212;
  }
  h1, h2, h3, h4, h5, h6 {
    color: #eaeaea;
  }
  h2 {
    border-bottom: 2px solid #333;
  }
}