:root {
  --primary: #4B0082;
  --secondary: #6A5ACD;
  --background: #FFFFFF;
  --footer-bg: #4B0082;
  --button: #6A5ACD;
  --section-bg-1: #F5F5F5;
  --section-bg-2: #E6E6FA;
  --section-bg-3: #F8F8FF;
  --text-primary: #333333;
  --text-secondary: #666666;
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
  --font-accent: 'Inter', system-ui, -apple-system, sans-serif;
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.05);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
}

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

body {
  font-family: var(--font-main);
  background-color: var(--background);
  color: var(--text-primary);
  line-height: 1.7;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-accent);
  font-weight: 600;
  color: var(--primary);
  margin-top: 0;
  line-height: 1.3;
  letter-spacing: -0.025em;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: 2rem;
  margin-bottom: 1.25rem;
}

h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

p {
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
  max-width: 65ch;
}

a {
  color: var(--secondary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--primary);
  text-decoration: underline;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: var(--transition);
  cursor: pointer;
  border: none;
  box-shadow: var(--shadow-sm);
}

.btn-primary {
  background-color: var(--button);
  color: white;
}

.btn-primary:hover {
  background-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.section {
  padding: 5rem 0;
}

.section-bg-1 {
  background-color: var(--section-bg-1);
}

.section-bg-2 {
  background-color: var(--section-bg-2);
}

.section-bg-3 {
  background-color: var(--section-bg-3);
}

.card {
  background: white;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 2rem;
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

footer {
  background-color: var(--footer-bg);
  color: white;
  padding: 3rem 0;
}

footer a {
  color: rgba(255, 255, 255, 0.8);
}

footer a:hover {
  color: white;
  text-decoration: none;
}

@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  .section {
    padding: 3rem 0;
  }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 0.6s ease-out forwards;
}