/* Critical CSS - Load immediately to prevent FOUC */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Merriweather:wght@300;400;700&display=swap');

/* Essential base styles */
html {
  scroll-behavior: smooth;
  font-feature-settings: 'rlig' 1, 'calt' 1;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: #374151;
  background-color: #ffffff;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'rlig' 1, 'calt' 1;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

/* Essential typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  color: #111827;
  letter-spacing: -0.025em;
  margin: 0;
}

h1 {
  font-size: 2.25rem;
  line-height: 2.5rem;
  font-weight: 700;
}

h2 {
  font-size: 1.875rem;
  line-height: 2.25rem;
}

h3 {
  font-size: 1.5rem;
  line-height: 2rem;
}

p {
  font-size: 1rem;
  line-height: 1.75rem;
  margin: 0;
}

/* Essential layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.section {
  padding: 4rem 0;
}

/* Essential button styles */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  color: #ffffff;
  background-color: #0ea5e9;
  border: 1px solid transparent;
  border-radius: 0.5rem;
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  text-decoration: none;
  transition: all 0.2s;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  color: #0ea5e9;
  background-color: #f0f9ff;
  border: 1px solid #bae6fd;
  border-radius: 0.5rem;
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  text-decoration: none;
  transition: all 0.2s;
}

/* Essential card styles */
.card {
  background-color: #ffffff;
  border-radius: 0.75rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  border: 1px solid #e5e7eb;
  overflow: hidden;
}

/* Essential form styles */
.form-input, .form-textarea, .form-select {
  display: block;
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  border: 1px solid #d1d5db;
  border-radius: 0.5rem;
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  transition: all 0.2s;
}

/* Essential navigation */
.nav-link {
  color: #374151;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

/* Essential hero gradient */
.hero-gradient {
  background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 50%, #0369a1 100%);
  color: #ffffff;
}

/* Essential grid */
.grid {
  display: grid;
}

.grid-cols-1 {
  grid-template-columns: repeat(1, minmax(0, 1fr));
}

.grid-cols-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-cols-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.gap-4 {
  gap: 1rem;
}

.gap-6 {
  gap: 1.5rem;
}

.gap-8 {
  gap: 2rem;
}

.gap-12 {
  gap: 3rem;
}

.gap-16 {
  gap: 4rem;
}

/* Essential spacing */
.space-y-4 > * + * {
  margin-top: 1rem;
}

.space-y-6 > * + * {
  margin-top: 1.5rem;
}

.space-y-8 > * + * {
  margin-top: 2rem;
}

/* Essential flexbox */
.flex {
  display: flex;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

/* Essential text utilities */
.text-center {
  text-align: center;
}

.text-white {
  color: #ffffff;
}

.text-neutral-900 {
  color: #111827;
}

.text-neutral-600 {
  color: #4b5563;
}

.text-neutral-200 {
  color: #e5e7eb;
}

.text-primary-600 {
  color: #0ea5e9;
}

.text-secondary-400 {
  color: #f59e0b;
}

/* Essential background utilities */
.bg-white {
  background-color: #ffffff;
}

.bg-neutral-50 {
  background-color: #f9fafb;
}

.bg-neutral-900 {
  background-color: #111827;
}

.bg-primary-100 {
  background-color: #e0f2fe;
}

.bg-primary-600 {
  background-color: #0ea5e9;
}

.bg-secondary-100 {
  background-color: #fef3c7;
}

.bg-secondary-600 {
  background-color: #d97706;
}

/* Essential padding/margin */
.p-8 {
  padding: 2rem;
}

.py-20 {
  padding-top: 5rem;
  padding-bottom: 5rem;
}

.py-32 {
  padding-top: 8rem;
  padding-bottom: 8rem;
}

.mb-6 {
  margin-bottom: 1.5rem;
}

.mb-8 {
  margin-bottom: 2rem;
}

.mb-12 {
  margin-bottom: 3rem;
}

.mb-16 {
  margin-bottom: 4rem;
}

/* Essential responsive utilities */
@media (min-width: 768px) {
  .md\:grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  
  .md\:grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  
  .md\:text-2xl {
    font-size: 1.5rem;
    line-height: 2rem;
  }
  
  .md\:text-3xl {
    font-size: 1.875rem;
    line-height: 2.25rem;
  }
  
  .md\:text-4xl {
    font-size: 2.25rem;
    line-height: 2.5rem;
  }
  
  .md\:text-5xl {
    font-size: 3rem;
    line-height: 1;
  }
  
  .md\:text-6xl {
    font-size: 3.75rem;
    line-height: 1;
  }
}

@media (min-width: 1024px) {
  .lg\:grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  
  .lg\:grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  
  .lg\:py-32 {
    padding-top: 8rem;
    padding-bottom: 8rem;
  }
  
  .lg\:text-6xl {
    font-size: 3.75rem;
    line-height: 1;
  }
  
  .lg\:text-2xl {
    font-size: 1.5rem;
    line-height: 2rem;
  }
  
  .lg\:text-3xl {
    font-size: 1.875rem;
    line-height: 2.25rem;
  }
  
  .lg\:text-4xl {
    font-size: 2.25rem;
    line-height: 2.5rem;
  }
  
  .lg\:text-5xl {
    font-size: 3rem;
    line-height: 1;
  }
}

/* Essential visibility */
.hidden {
  display: none;
}

/* Essential max-width */
.max-w-4xl {
  max-width: 56rem;
}

.max-w-3xl {
  max-width: 48rem;
}

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

/* Essential leading */
.leading-tight {
  line-height: 1.25;
}

.leading-relaxed {
  line-height: 1.625;
}