:root {
  --primary: #3b82f6;
  --secondary: #1e40af;
  --accent: #f59e0b;
}

body {
  font-family: 'Poppins', sans-serif;
  scroll-behavior: smooth;
}

.hero-gradient {
  background: linear-gradient(135deg, #1e3a8a, #3b82f6);
}

.animated-btn {
  transition: all 0.3s ease;
}
.animated-btn:hover {
  transform: scale(1.05);
}

.countdown-timer span {
  width: 60px;
  height: 60px;
  background: var(--secondary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 8px;
  border-radius: 8px;
  font-weight: 600;
}

.course-card {
  background: #fff;
  padding: 24px;
  border-radius: 12px;
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
  transition: 0.3s;
}
.course-card:hover {
  transform: translateY(-5px);
}
.course-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: #1e40af;
}
.course-card span {
  color: #f59e0b;
  font-weight: bold;
}