:root {
  --primary: #2dd4bf;
  --primary-light: #a7f3d0;
  --primary-dark: #0d9488;
  --secondary: #4b5563;
  --secondary-light: #9ca3af;
  --secondary-dark: #1f2937;
  --background: #f3f4f6;
  --footer-bg: #1f2937;
  --button: #2dd4bf;
  --button-hover: #0d9488;
  --text: #111827;
  --text-light: #6b7280;
  --text-on-dark: #f9fafb;
  --section-bg-1: #ffffff;
  --section-bg-2: #e5e7eb;
  --section-bg-3: #f9fafb;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--background);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  color: var(--secondary-dark);
  margin-bottom: 1.5rem;
  line-height: 1.3;
}

h1 {
  font-size: 2.5rem;
  letter-spacing: -0.025em;
}

h2 {
  font-size: 2rem;
  letter-spacing: -0.02em;
}

h3 {
  font-size: 1.5rem;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: all 0.3s ease;
}

a:hover {
  color: var(--primary-dark);
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background-color: var(--button);
  color: white;
  border-radius: 0.375rem;
  font-weight: 500;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.btn:hover {
  background-color: var(--button-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.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-color: white;
  border-radius: 0.5rem;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

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

footer a {
  color: var(--primary-light);
}

footer a:hover {
  color: white;
}

.navbar {
  background-color: white;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.navbar a {
  color: var(--secondary);
  padding: 0.5rem 1rem;
  border-radius: 0.25rem;
}

.navbar a:hover {
  color: var(--primary);
  background-color: var(--section-bg-3);
}

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

.animate-fadeIn {
  animation: fadeIn 0.6s ease forwards;
}

@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  .section {
    padding: 3rem 0;
  }
}