* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: system-ui, -apple-system, sans-serif;
}

:root {
  --bg: hsl(220 100% 97%);
  --bg-light: white;
  --text: hsl(226 85% 7%);
  --text-muted: hsl(220 26% 31%);
  --primary: hsl(180, 41%, 47%);
  --border: hsl(220 19% 53%);
}

body {
  background: var(--bg);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Header */
header {
  background: var(--bg-light);
  padding: 1rem;
  border-bottom: 2px solid var(--primary);
  margin-bottom: 2rem;
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary);
}

nav ul {
  display: flex;
  gap: 2rem;
  list-style: none;
}

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

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

/* Hero */
.hero {
  text-align: center;
  padding: 3rem 0;
  background: var(--bg-light);
  margin-bottom: 2rem;
  border-radius: 8px;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--primary);
  color: white;
  text-decoration: none;
  border-radius: 4px;
  border: none;
  cursor: pointer;
}

/* Product Grid */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.product-card {
  background: white;
  padding: 1rem;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.product-card img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 0.5rem;
}

.price {
  font-size: 1.25rem;
  font-weight: bold;
  color: var(--primary);
  margin: 0.5rem 0;
}

/* Categories */
.categories {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin: 1rem 0;
}

.category-btn {
  padding: 0.25rem 1rem;
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: 20px;
  cursor: pointer;
}

.category-btn.active {
  background: var(--primary);
  color: white;
}

footer {
  text-align: center;
  padding: 2rem;
  margin-top: 3rem;
  border-top: 1px solid var(--border);
}

/* Features section */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin: 3rem 0;
}

.feature {
  text-align: center;
  padding: 2rem;
  background: var(--bg-light);
  border-radius: 8px;
  border: 1px solid var(--border);
}

.feature h3 {
  margin-bottom: 0.5rem;
  color: var(--primary);
}

.section-title {
  margin: 2rem 0 1rem;
  font-size: 1.75rem;
  border-bottom: 2px solid var(--primary);
  padding-bottom: 0.5rem;
  display: inline-block;
}

/* Hero enhancement */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--bg-light) 100%);
  padding: 4rem 0;
  margin-bottom: 2rem;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.2rem;
}

/* Cart link */
.cart-link {
  background: var(--primary);
  color: white !important;
  padding: 0.5rem 1rem !important;
  border-radius: 20px;
}

/* Responsive */
@media (max-width: 768px) {
  .features {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 2rem;
  }
}