@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  --color-primary: #18181B;
  --color-on-primary: #FFFFFF;
  --color-secondary: #3F3F46;
  --color-accent: #2563EB;
  --color-accent-hover: #1D4ED8;
  --color-background: #FAFAFA;
  --color-foreground: #09090B;
  --color-muted: #E8ECF0;
  --color-border: #E4E4E7;
  --color-destructive: #DC2626;
  --color-ring: #18181B;
  
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  --spacing-4xl: 96px;
  
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
  
  --max-width: 1200px;
  --nav-height: 56px;
}

@layer base {
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  html {
    scroll-behavior: smooth;
    font-size: 16px;
  }
  
  body {
    font-family: var(--font-body);
    background-color: var(--color-background);
    color: var(--color-foreground);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
  
  h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
  }
  
  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }
  h3 { font-size: 1.5rem; }
  h4 { font-size: 1.25rem; }
  
  a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
  }
  
  a:hover {
    color: var(--color-accent);
  }
  
  img {
    max-width: 100%;
    display: block;
  }
  
  ::selection {
    background-color: rgba(37, 99, 235, 0.15);
    color: var(--color-accent);
  }
  
  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: 0.01ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: 0.01ms !important;
    }
  }
}

@layer components {
  .container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
  }
  
  .section {
    padding: var(--spacing-3xl) 0;
  }
  
  .section-alt {
    background-color: var(--color-muted);
  }
  
  .section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto var(--spacing-2xl);
  }
  
  .section-eyebrow {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-md);
  }
  
  .section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--spacing-md);
  }
  
  .section-subtitle {
    font-size: 1.0625rem;
    color: var(--color-secondary);
    line-height: 1.6;
  }
  
  .btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all var(--transition-normal);
    font-family: inherit;
    text-decoration: none;
  }
  
  .btn-primary {
    background-color: var(--color-accent);
    color: var(--color-on-primary);
  }
  
  .btn-primary:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-1px);
  }
  
  .btn-secondary {
    background-color: transparent;
    color: var(--color-accent);
    border: 1px solid var(--color-border);
  }
  
  .btn-secondary:hover {
    background-color: rgba(37, 99, 235, 0.05);
    border-color: var(--color-accent);
  }
  
  .btn-outline {
    background-color: transparent;
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
  }
  
  .btn-outline:hover {
    background-color: var(--color-accent);
    color: var(--color-on-primary);
  }
  
  .card {
    background-color: var(--color-on-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-border);
    transition: all var(--transition-slow);
  }
  
  .card:hover {
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
    transform: translateY(-2px);
  }
  
  .badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    background-color: var(--color-muted);
    color: var(--color-secondary);
  }
  
  .badge-accent {
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--color-accent);
  }
}

@layer utilities {
  .fade-in-up {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
  }
  
  .fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
  }
  
  .text-muted {
    color: var(--color-secondary);
  }
  
  .bg-muted {
    background-color: var(--color-muted);
  }
  
  .border-subtle {
    border-color: var(--color-border);
  }
}

@media (max-width: 768px) {
  :root {
    --spacing-lg: 16px;
    --spacing-xl: 20px;
    --spacing-2xl: 32px;
    --spacing-3xl: 48px;
  }
  
  .section {
    padding: var(--spacing-2xl) 0;
  }
}