/* main.css */

body {
  font-family: Arial, Helvetica, sans-serif;
  background: #f4f6f8;
  margin: 0;
  padding: 0;
  color: #333;
}

.container {
  max-width: 600px;
  margin: 50px auto;
  background: #fff;
  padding: 30px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
  border-radius: 8px;
}

h1, h2 {
  text-align: center;
  color: #2c3e50;
}

form {
  display: flex;
  flex-direction: column;
}

input[type="text"],
input[type="email"],
input[type="password"],
select,
input[type="file"] {
  padding: 12px;
  margin-bottom: 15px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 16px;
}

button {
  padding: 12px;
  background: #27ae60;
  color: #fff;
  border: none;
  border-radius: 4px;
  font-size: 18px;
  cursor: pointer;
  transition: background 0.3s;
}

button:hover {
  background: #219150;
}

p {
  margin: 10px 0;
}

a {
  color: #2980b9;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.radio-group {
  margin-bottom: 15px;
}

.radio-group input[type="radio"] {
  margin-right: 8px;
}

.quiz-question {
  margin-bottom: 20px;
}

.timer {
  text-align: center;
  font-size: 18px;
  margin-bottom: 20px;
  color: #e74c3c;
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    margin: 20px;
    padding: 20px;
  }

  button {
    font-size: 16px;
  }
}