:root {
  --primary: #2563eb;
  --secondary: #10b981;
  --background: #f9fafb;
  --footer-bg: #1f2937;
  --button: #2563eb;
  --section-bg-1: #ffffff;
  --section-bg-2: #f3f4f6;
  --section-bg-3: #e5e7eb;
  --section-bg-4: #d1d5db;
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-light: #f9fafb;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--background);
  color: var(--text-primary);
  line-height: 1.7;
  margin: 0;
  padding: 0;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  margin-top: 0;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

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

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

h3 {
  font-size: 1.5rem;
  letter-spacing: -0.015em;
}

p {
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
  font-weight: 400;
}

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

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

/* Sections */
.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);
}

.section-bg-4 {
  background-color: var(--section-bg-4);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: 0.375rem;
  transition: var(--transition);
  cursor: pointer;
}

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

.btn-primary:hover {
  background-color: #1d4ed8;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background-color: var(--secondary);
  color: white;
  box-shadow: var(--shadow);
}

.btn-secondary:hover {
  background-color: #0d9488;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Cards */
.card {
  background-color: white;
  border-radius: 0.5rem;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.card-body {
  padding: 1.5rem;
}

/* Footer */
.footer {
  background-color: var(--footer-bg);
  color: var(--text-light);
  padding: 3rem 0;
}

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

.footer a:hover {
  color: var(--secondary);
}

/* Utility classes */
.text-primary {
  color: var(--primary);
}

.text-secondary {
  color: var(--secondary);
}

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

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

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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