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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: #333;
}

.header {
  background: #2c3e50;
  color: white;
  padding: 1rem 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

nav {
  background: #34495e;
  padding: 1rem 0;
}

nav ul {
  list-style: none;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
}

nav li {
  margin-right: 2rem;
}

nav a {
  color: white;
  text-decoration: none;
  font-weight: 500;
}

nav a:hover {
  color: #3498db;
}

.back-button {
  background-color: #27ae60 !important;
  color: white !important;
  padding: 0.5rem 1rem;
  border-radius: 0.375rem;
  font-weight: 600;
  margin-right: 1rem;
}

.back-button:hover {
  background-color: #229954 !important;
  color: white !important;
}

.c2-button {
  background-color: #e74c3c !important;
  color: white !important;
  padding: 0.5rem 1rem;
  border-radius: 0.375rem;
  font-weight: 600;
  margin-right: 1rem;
}

.c2-button:hover {
  background-color: #c0392b !important;
  color: white !important;
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 20px;
}

.products {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.product-card {
  border: 1px solid #ddd;
  padding: 2rem;
  border-radius: 8px;
  text-align: center;
}

.price {
  font-size: 1.5rem;
  color: #27ae60;
  font-weight: bold;
  margin: 1rem 0;
}

.btn {
  display: inline-block;
  background: #3498db;
  color: white;
  padding: 0.75rem 2rem;
  text-decoration: none;
  border-radius: 4px;
  margin-top: 1rem;
}

.btn:hover {
  background: #2980b9;
}

.footer {
  background: #34495e;
  color: white;
  text-align: center;
  padding: 2rem 0;
  margin-top: 4rem;
}