/* General Styling */
body {
  font-family: 'Arial', sans-serif;
  background-color: #0a0f1a;
  color: #e9f0fb;
  margin: 0;
  padding: 0;
  line-height: 1.6;
}

header {
  background: #101728;
  padding: 20px;
  text-align: center;
}

.navbar a.logo {
  font-size: 24px;
  color: #4c9cff;
  text-decoration: none;
  font-weight: bold;
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 20px;
}

nav ul li a {
  color: #a9b8d6;
  text-decoration: none;
  font-size: 16px;
  transition: color 0.3s;
}

nav ul li a:hover {
  color: #4c9cff;
}

/* Container */
.container {
  display: flex;
  padding: 20px;
}

.main-content {
  flex-grow: 1;
  background-color: #101728;
  padding: 20px;
  border-radius: 10px;
}

/* Footer Styling */
footer {
  background-color: #101728;
  padding: 10px;
  text-align: center;
  margin-top: 40px;
}

footer p {
  color: #a9b8d6;
  font-size: 14px;
}

footer a {
  color: #a9b8d6;
  font-size: 14px;
  text-decoration: none;
  transition: color 0.3s;
}

footer a:hover {
  color: #4c9cff;
}

/* Course Card Styling */
.course-card {
  background: #2a2e3b;
  padding: 20px;
  border-radius: 10px;
  width: 100%; /* Ensure course card takes full width */
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  margin-bottom: 20px;
}

.course-card h3 {
  font-size: 22px;
  margin-bottom: 15px;
}

.course-card p {
  font-size: 14px;
  color: #a9b8d6;
  margin-bottom: 15px;
}

.course-card ul {
  list-style: disc;
  padding-left: 20px;
}

.course-card .btn {
  background-color: #4c9cff;
  padding: 10px 20px;
  color: #fff;
  text-decoration: none;
  border-radius: 5px;
  display: inline-block;
  margin-top: 15px;
  transition: background-color 0.3s;
}

.course-card .btn:hover {
  background-color: #3b7cc2;
}

/* Improved Link Styles */
a {
  color: #4c9cff;
  text-decoration: none;
  transition: color 0.3s;
}

a:hover {
  color: #3b7cc2;
}

a:active {
  color: #1a61a5;
}

/* Back Button */
.back-btn {
  background-color: #4c9cff;
  padding: 8px 15px;
  color: #fff;
  text-decoration: none;
  border-radius: 5px;
  display: inline-block;
  margin-bottom: 20px;
  font-size: 16px;
  transition: background-color 0.3s;
}

.back-btn:hover {
  background-color: #3b7cc2;
}