/* General styles */
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #74ebd5, #ACB6E5);
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  color: #333;
}

/* Header */
header {
  background-color: rgba(0,0,0,0.6);
  color: #fff;
  text-align: center;
  padding: 2rem 1rem;
  box-shadow: 0 4px 6px rgba(0,0,0,0.3);
}

/* Main container */
main {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 2rem;
}

/* Quiz card */
#quiz-container {
  background-color: #fff;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.2);
  max-width: 500px;
  width: 100%;
  text-align: center;
}

/* Questions */
#question {
  font-size: 1.3rem;
  font-weight: bold;
  margin-bottom: 1rem;
}

/* Buttons */
button {
  padding: 0.7rem 1.5rem;
  font-size: 1rem;
  margin: 0.5rem 0;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  background-color: #4CAF50;
  color: white;
  transition: background 0.3s, transform 0.2s;
}

button:hover {
  background-color: #45a049;
  transform: scale(1.05);
}

/* Input field */
#answer-input {
  padding: 0.7rem;
  font-size: 1rem;
  border-radius: 8px;
  border: 1px solid #ccc;
  width: 80%;
  margin-top: 0.5rem;
}

/* Feedback */
#feedback {
  margin-top: 1rem;
  font-weight: bold;
  min-height: 1.5rem;
}

/* Score */
#score {
  margin-top: 1.5rem;
  font-size: 1.2rem;
  font-weight: bold;
}

/* Footer */
footer {
  background-color: rgba(0,0,0,0.6);
  color: white;
  padding: 1rem 0;
  text-align: center;
  box-shadow: 0 -4px 6px rgba(0,0,0,0.3);
}