/* Cloudflare Image Transformation Demo - Main Styles */

:root {
  --primary-color: #f38020;
  --secondary-color: #0051c3;
  --text-color: #333;
  --bg-color: #f5f5f5;
  --card-bg: #fff;
  --border-color: #ddd;
  --border-radius: 8px;
  --spacing: 1rem;
  --max-width: 1200px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--bg-color);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing);
}

/* Header & Navigation */
header {
  background: var(--card-bg);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

nav {
  padding: var(--spacing) 0;
}

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

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary-color);
  text-decoration: none;
}

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

.nav-menu a {
  color: var(--text-color);
  text-decoration: none;
  transition: color 0.3s;
}

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

/* Main Content */
main {
  padding: 2rem 0;
  min-height: calc(100vh - 200px);
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--secondary-color);
}

h2 {
  font-size: 2rem;
  margin: 2rem 0 1rem;
  color: var(--secondary-color);
}

h3 {
  font-size: 1.5rem;
  margin: 1rem 0;
}

.subtitle {
  font-size: 1.2rem;
  color: #666;
  margin-bottom: 2rem;
}

/* Cards Grid */
.demo-grid {
  margin: 3rem 0;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.card {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

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

.card-content {
  padding: 1.5rem;
}

.card h3 {
  margin: 0 0 0.5rem;
}

.card p {
  color: #666;
  margin-bottom: 1rem;
}

/* Buttons */
.button {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: var(--primary-color);
  color: white;
  text-decoration: none;
  border-radius: var(--border-radius);
  border: none;
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.3s;
}

.button:hover {
  background: #d96f1c;
}

/* Product Grid (E-commerce) */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.product-card {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 1rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.product-card img {
  width: 100%;
  border-radius: var(--border-radius);
  margin-bottom: 1rem;
}

.product-card h3 {
  margin: 0.5rem 0;
}

.price {
  font-size: 1.5rem;
  color: var(--primary-color);
  font-weight: bold;
  margin: 0.5rem 0;
}

/* Product Detail */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin: 2rem 0;
}

.product-detail img {
  width: 100%;
  border-radius: var(--border-radius);
}

.product-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Avatar */
.avatar-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  margin: 2rem 0;
}

.avatar-item {
  text-align: center;
}

.avatar-circle {
  border-radius: 50%;
  border: 3px solid var(--border-color);
}

.avatar-sizes {
  display: flex;
  gap: 3rem;
  align-items: flex-end;
  margin: 2rem 0;
}

/* Gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}

.gallery-item img {
  width: 100%;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: transform 0.3s;
}

.gallery-item img:hover {
  transform: scale(1.05);
}

/* Hero Section */
.hero-section {
  height: 400px;
  background-size: cover;
  background-position: center;
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 2rem 0;
  position: relative;
}

.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.3);
  border-radius: var(--border-radius);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: white;
}

.hero-content h2 {
  font-size: 3rem;
  color: white;
  margin-bottom: 1rem;
}

.hero-content p {
  font-size: 1.5rem;
  margin-bottom: 2rem;
}

/* Comparison Grid */
.comparison-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.comparison-item {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.comparison-item img {
  width: 100%;
  display: block;
}

.comparison-info {
  padding: 1rem;
}

.comparison-info code {
  display: block;
  background: var(--bg-color);
  padding: 0.5rem;
  border-radius: 4px;
  font-size: 0.85rem;
  overflow-x: auto;
  margin-top: 0.5rem;
}

/* Resize Container */
.resize-container {
  width: 400px;
  height: 400px;
  border: 2px dashed var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-color);
}

.resize-container img {
  max-width: 100%;
  max-height: 100%;
}

/* Recommendations */
.recommendations {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: var(--border-radius);
  margin: 2rem 0;
}

.recommendations ul {
  list-style-position: inside;
}

.recommendations li {
  margin: 0.5rem 0;
}

/* Code Examples */
.code-example {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: var(--border-radius);
  margin: 2rem 0;
}

.code-example pre {
  background: #2d2d2d;
  color: #f8f8f2;
  padding: 1.5rem;
  border-radius: var(--border-radius);
  overflow-x: auto;
}

.code-example code {
  font-family: 'Courier New', monospace;
  font-size: 0.9rem;
  line-height: 1.5;
}

/* Lazy Loading Grid */
.lazy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.lazy-item {
  text-align: center;
}

.lazy-item img {
  width: 100%;
  border-radius: var(--border-radius);
  min-height: 200px;
  background: var(--bg-color);
}

/* Performance Grid */
.performance-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.performance-grid img {
  width: 100%;
  border-radius: var(--border-radius);
}

#performance-metrics {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: var(--border-radius);
  margin: 2rem 0;
}

/* Footer */
footer {
  background: var(--card-bg);
  padding: 2rem 0;
  margin-top: 4rem;
  text-align: center;
  border-top: 1px solid var(--border-color);
}

footer p {
  margin: 0.5rem 0;
}

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

footer a:hover {
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .nav-menu {
    gap: 1rem;
    font-size: 0.9rem;
  }

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

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

  .hero-section {
    height: 300px;
  }

  .hero-content h2 {
    font-size: 2rem;
  }

  .hero-content p {
    font-size: 1.2rem;
  }

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

  .resize-container {
    width: 100%;
    height: 300px;
  }
}