* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  background-color: #f0f0f0;
  color: #333;
}

header {
  background-color: #0047ab;
  padding: 20px;
  text-align: center;
}

h1 {
  font-size: 36px;
  color: white;
}

main {
  padding: 20px;
  text-align: center;
}

#userSection {
  margin-bottom: 20px;
}

#topButtons {
  margin-bottom: 20px;
  display:none;
}

#welcome {
  margin-bottom: 20px;
}

input {
  font-size: 18px;
  padding: 5px 10px;
  border: 2px solid #0047ab;
  border-radius: 4px;
}

button {
  font-size: 18px;
  padding: 5px 10px;
  background-color: #0047ab;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.2s;
}

button:hover {
  background-color: #0056d2;
}

.smallBtn {
  font-size: 14px;
  padding: 4px 8px;
}

.flash-card {
  background-color: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

#question {
  font-size: 48px;
  font-weight: bold;
  color: #e00000;
  margin-bottom: 20px;
}

#result {
  font-size: 20px;
  margin-top: 20px;
}