:root {
  --color-primary: #635bff;
  --color-secondary: #6b7280;
  --color-accent: #fcd34d;
  --color-dark: #111827;
  --color-light: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;

  --border-sketch: 2px solid var(--color-dark);
  --shadow-sketch: 4px 4px 0 var(--color-dark);
  --radius-sketch: 12px;

  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 4rem;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  line-height: 1.5;
  color: var(--color-dark);
  background-color: var(--color-light);
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-md);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Responsive grid system */
.grid {
  display: grid;
  gap: var(--spacing-md);
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* Card component */
.card {
  background: white;
  border: var(--border-sketch);
  border-radius: var(--radius-sketch);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sketch);
}

/* Hero Section */
.hero {
  background: var(--color-light);
  color: var(--color-dark);
  padding: var(--spacing-xl) 0;
  text-align: center;
}

.hero > .container {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.hero-text {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-lg);
  opacity: 0.9;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
}

/* Buttons */
.button {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  border: var(--border-sketch);
  border-radius: var(--radius-sketch);
  text-decoration: none;
  font-weight: 600;
  transition: all 0.2s;
  background: white;
}

.button:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-sketch);
}

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

.button.secondary {
  background: var(--color-light);
  color: var(--color-dark);
}

/* Features */
.features {
  padding: var(--spacing-xl) 0;
}

.feature {
  text-align: center;
}

.feature-icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--spacing-md);
  opacity: 0.9;
}

.feature h2 {
  margin-bottom: var(--spacing-sm);
}

/* Products */
.featured-products {
  padding: var(--spacing-xl) 0;
  background: var(--color-light);
}

.featured-products h2 {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.product-info {
  padding: var(--spacing-md);
}

.product-info h3 {
  margin-bottom: var(--spacing-xs);
}

.product-info p {
  margin-bottom: var(--spacing-md);
  color: #666;
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }

  .hero-cta {
    flex-direction: column;
  }

  .grid {
    grid-template-columns: 1fr;
  }
}