/* CSS Variables */
:root {
  --primary-color: #4CAF50;
  --secondary-color: #45a049;
  --accent-color: #f4f4f4;
  --text-color: #333;
  --light-text: #fff;
  --shadow: 0 2px 5px rgba(0,0,0,0.1);
}

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

body {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--accent-color);
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

/* Header */
header {
  background-color: var(--primary-color);
  color: var(--light-text);
  padding: 1rem 0;
  box-shadow: var(--shadow);
}

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

.logo img {
  height: 80px;
}

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

nav ul li {
  margin-left: 2rem;
}

nav ul li a {
  color: var(--light-text);
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s;
}

nav ul li a:hover {
  color: var(--secondary-color);
}

/* Hero Section */
.hero {
  background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('https://images.unsplash.com/photo-1500382017468-9049fed747ef?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80') no-repeat center center;
  background-size: cover;
  color: var(--light-text);
  padding: 100px 0;
  text-align: center;
  position: relative;
}

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

.hero p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
}

.btn {
  display: inline-block;
  background-color: var(--primary-color);
  color: var(--light-text);
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  border-radius: 5px;
  transition: background-color 0.3s;
}

.btn:hover {
  background-color: var(--secondary-color);
}

/* Sections */
section {
  padding: 4rem 0;
}

section h2 {
  text-align: center;
  margin-bottom: 2rem;
  color: var(--primary-color);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.product-card {
  background-color: white;
  border-radius: 8px;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform 0.3s;
}

.product-card:hover {
  transform: translateY(-5px);
}

.product-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.product-card h3 {
  padding: 1rem;
  color: var(--primary-color);
}

.product-card p {
  padding: 0 1rem 1rem;
}

/* Forms */
.form-container {
  max-width: 500px;
  margin: 0 auto;
  background-color: white;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: 1rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: bold;
}

input, textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 1rem;
}

textarea {
  resize: vertical;
  min-height: 100px;
}

button {
  background-color: var(--primary-color);
  color: var(--light-text);
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
  transition: background-color 0.3s;
}

button:hover {
  background-color: var(--secondary-color);
}

/* Footer */
footer {
  background-color: var(--text-color);
  color: var(--light-text);
  text-align: center;
  padding: 2rem 0;
}

/* Responsive */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
  }

  nav ul {
    margin-top: 1rem;
  }

  nav ul li {
    margin-left: 1rem;
  }

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

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