body {
  font-family: Arial, sans-serif;
  background-color: #0d1117;
  color: #c9d1d9;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  margin: 0;
}

main {
  background-color: #161b22;
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.5);
  max-width: 600px;
  width: 100%;
  text-align: center;
}

h1 {
  font-size: 22px;
  margin-bottom: 20px;
  color: #f0f6fc;
}

form {
  display: flex;
  flex-direction: column;
  gap: 15px;
  margin-top: 20px;
}

input {
  padding: 10px;
  font-size: 16px;
  border-radius: 4px;
  border: 1px solid #30363d;
  background-color: #0d1117;
  color: #f0f6fc;
}

button {
  padding: 10px;
  font-size: 16px;
  background-color: #238636;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-weight: bold;
}

button:hover {
  background-color: #2ea043;
}

#svg-container {
  margin-top: 20px;
  display: flex;
  justify-content: center;
}