:root {
  --primary-color: #FF69B4; /* Hot pink theme */
  --secondary-color: #F5F7FA;
  --accent-color: #50E3C2;
  --text-color: #333333;
  --light-text: #666666;
  --background-color: #FFFFFF;
  --beginner-color: #0d904f;
  --beginner-bg: #e6f7ec;
  --intermediate-color: #ff9800;
  --intermediate-bg: #fff4e6;
  --advanced-color: #f44336;
  --advanced-bg: #ffebee;
  --header-height: 80px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
  font-family: 'Nunito', sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--background-color);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding-top: var(--header-height); /* Space for the fixed header */
}

main {
  flex: 1 0 auto;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.btn {
  padding: 0.5rem 1rem;
  border-radius: 5px;
  text-decoration: none;
  transition: all 0.3s ease;
  font-weight: 600;
}

.btn-primary {
  background-color: var(--primary-color);
  color: #fff;
}

.btn-primary:hover {
  background-color: #ff45a0; /* Darker shade on hover */
  transform: translateY(-2px);
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-color);
  border: 1px solid var(--text-color);
}

.btn-secondary:hover {
  background-color: rgba(0,0,0,0.05);
  transform: translateY(-2px);
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .container {
    padding: 0 1.5rem;
  }
  
  body {
    padding-top: 110px; /* Adjusted for taller header with search bar */
  }
  
  .btn {
    padding: 0.4rem 0.8rem;
  }
}

@media (max-width: 480px) {
  :root {
    --header-height: 130px; /* Increase for mobile header with search bar */
  }
  
  body {
    padding-top: var(--header-height);
  }
  
  .container {
    padding: 0 1rem;
  }
}