body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: #f4faff;
  color: #222;
}

.courses {
  text-align: center;
  padding: 60px 20px;
  background: linear-gradient(to bottom, #e0f7fa, #ffffff);
}

.courses h2 {
  font-size: 2.2rem;
  color: #00bcd4;
  margin-bottom: 10px;
}

.subtext {
  color: #555;
  font-size: 1rem;
  margin-bottom: 40px;
}

.course-grid {
  display: grid;
  gap: 30px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  max-width: 1200px;
  margin: auto;
}

.course-card {
  background: white;
  padding: 25px;
  border-radius: 14px;
  box-shadow: 0 6px 20px rgba(0,188,212,0.12);
  transition: 0.3s ease;
  text-align: left;
}

.course-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 25px rgba(0,188,212,0.18);
}

.course-card h3 {
  color: #007c91;
  margin-bottom: 10px;
}

.course-card p {
  font-size: 0.95rem;
  color: #444;
  margin-bottom: 12px;
}

.course-card ul {
  padding-left: 20px;
  margin-bottom: 20px;
}

.course-card ul li {
  margin-bottom: 6px;
  font-size: 0.9rem;
}

.course-card a {
  display: inline-block;
  background: #00bcd4;
  color: white;
  padding: 10px 16px;
  border-radius: 6px;
  font-weight: bold;
  text-decoration: none;
  transition: background 0.3s ease;
}

.course-card a:hover {
  background: #0097a7;
}