body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f9f9f9;
}

.navbar {
  background: linear-gradient(to right, #4b0082, #8e44ad);
  color: white;
  padding: 12px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  height: 40px;
  margin-right: 10px;
}

.site-name {
  font-size: 20px;
  font-weight: bold;
  color: #fff;
}

.nav-links a {
  color: white;
  margin-left: 20px;
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s ease;
}

.nav-links a:hover {
  color: #ffda77;
}

.content {
  max-width: 900px;
  margin: 40px auto;
  padding: 20px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.content h1 {
  text-align: center;
  margin-bottom: 30px;
  color: #4b0082;
}

.subject-box {
  margin-bottom: 30px;
}

.subject-box h2 {
  font-size: 22px;
  color: #2c3e50;
  margin-bottom: 12px;
}

.subject-box a {
  display: block;
  margin-bottom: 10px;
  text-decoration: none;
  background: linear-gradient(to right, #ff416c, #ff4b2b);
  color: white;
  padding: 10px 15px;
  border-radius: 6px;
  transition: background 0.3s ease, transform 0.2s ease;
}