/* CSS Container Queries Interactive Example Styles */
:root {
  --main-bg: #f0f4ff;
  --accent: #3498db;
  --accent-secondary: #e74c3c;
  --accent-tertiary: #9b59b6;
  --radius: 0.75rem;
  --theory-bg: #f9fafc;
  --code-bg: #23272e;
  --code-color: #e3e8ef;
  --accent-hover: #217dbb;
  --demo-bg: #fff;
  --subtitle: #555;
  --border-color-light: #e0e6ef;
  --resources-accent: #8e44ad;
  --transition: all 0.3s ease;
  --box-shadow: 0 0.25rem 1.5rem rgba(52, 152, 219, 0.08);
  --border-radius: 0.5rem;
}

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background: var(--main-bg);
  margin: 0;
  color: #222;
  line-height: 1.7;
}

nav {
  margin: 0;
  padding: 1rem 2rem 0 2rem;
}

.back-btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  padding: 0.5rem 1.2rem;
  border-radius: 0.375rem;
  font-weight: 500;
  transition: var(--transition);
}

.back-btn:hover {
  background: var(--accent-hover);
}

main {
  max-width: 51.25rem;
  margin: 2rem auto;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--box-shadow);
  padding: 2.5rem 2rem 2rem 2rem;
}

header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.subtitle {
  color: var(--subtitle);
  font-size: 1.2rem;
  margin-top: 0.5rem;
}

section.theory {
  background: var(--theory-bg);
  border-left: 0.25rem solid var(--accent);
  padding: 1.2rem 1.5rem;
  margin-bottom: 2rem;
  border-radius: 0.5rem;
}

section.theory h2 {
  margin-top: 0;
}

section.example {
  margin-bottom: 2.5rem;
}

.code-demo {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: flex-start;
}

.code-block {
  background: var(--code-bg);
  color: var(--code-color);
  padding: 1rem 1.2rem;
  border-radius: 0.5rem;
  font-size: 1rem;
  min-width: 16.25rem;
  max-width: 21.875rem;
  overflow-x: auto;
  flex: 1 1 16.25rem;
}

.code-block code {
  font-family: 'Fira Mono', 'Consolas', monospace;
  font-size: 0.9em;
  color: inherit;
}

.live-demo {
  background: var(--demo-bg);
  border: 0.0625rem solid var(--border-color-light);
  border-radius: 0.5rem;
  padding: 1.2rem 1.5rem;
  min-width: 13.75rem;
  flex: 1 1 13.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
}

.demo-description {
  font-size: 0.9rem;
  color: var(--subtitle);
  margin: 0.5rem 0 0 0;
}

/* Example 1: Basic Container Query */
.container {
  container-type: inline-size;
  width: 100%;
  resize: horizontal;
  overflow: auto;
  border: 1px dashed #ccc;
  padding: 1rem;
  min-width: 200px;
  max-width: 100%;
}

.card {
  padding: 1rem;
  background-color: #f0f4ff;
  border-radius: 8px;
  transition: var(--transition);
}

@container (max-width: 400px) {
  .card {
    background-color: var(--accent-secondary);
    color: white;
    padding: 0.5rem;
  }
}

/* Example 2: Named Containers */
.sidebar {
  container-type: inline-size;
  container-name: sidebar;
  width: 100%;
  resize: horizontal;
  overflow: auto;
  border: 1px dashed var(--accent);
  padding: 1rem;
  margin-bottom: 1rem;
  min-width: 200px;
  max-width: 100%;
}

.main-content {
  container-type: inline-size;
  container-name: main;
  width: 100%;
  resize: horizontal;
  overflow: auto;
  border: 1px dashed var(--accent-tertiary);
  padding: 1rem;
  min-width: 200px;
  max-width: 100%;
}

.widget {
  padding: 1rem;
  background-color: #f0f4ff;
  border-radius: 8px;
  transition: var(--transition);
}

@container sidebar (max-width: 300px) {
  .widget {
    background-color: var(--accent);
    color: white;
  }
}

@container main (min-width: 400px) {
  .widget {
    background-color: var(--accent-tertiary);
    color: white;
  }
}

/* Example 3: Container Query Units */
.cq-units-demo {
  container-type: inline-size;
  width: 100%;
  resize: horizontal;
  overflow: auto;
  border: 1px dashed #ccc;
  padding: 1rem;
  min-width: 200px;
  max-width: 100%;
}

.cq-heading {
  font-size: calc(1rem + 2cqi);
  margin-bottom: 0.5cqi;
  color: var(--accent);
  transition: var(--transition);
}

.cq-text {
  font-size: calc(0.8rem + 0.5cqi);
  transition: var(--transition);
}

/* Example 4: Responsive Layout Component */
.product-container {
  container-type: inline-size;
  width: 100%;
  resize: horizontal;
  overflow: auto;
  border: 1px dashed #ccc;
  padding: 1rem;
  min-width: 200px;
  max-width: 100%;
}

.product-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  padding: 1rem;
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
}

.product-image {
  background-color: #f0f4ff;
  aspect-ratio: 16/9;
  border-radius: 4px;
}

.product-info {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.product-info h3 {
  margin: 0;
  color: var(--accent);
}

.product-info button {
  background-color: var(--accent);
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  cursor: pointer;
  align-self: flex-start;
  transition: var(--transition);
}

.product-info button:hover {
  background-color: var(--accent-hover);
}

@container (min-width: 500px) {
  .product-card {
    grid-template-columns: 200px 1fr;
  }
}

/* Container Queries vs Media Queries section */
.approach-comparison {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-top: 1rem;
}

.approach {
  flex: 1 1 100%;
  padding: 1.2rem;
  border-radius: var(--border-radius);
  background-color: #f8f9fa;
}

.approach h3 {
  margin-top: 0;
  color: var(--accent);
}

.approach pre {
  background: var(--code-bg);
  color: var(--code-color);
  padding: 1rem;
  border-radius: var(--border-radius);
  overflow-x: auto;
  font-size: 0.9rem;
}

.approach code {
  font-family: 'Fira Mono', 'Consolas', monospace;
}

.container-queries {
  border-left: 0.25rem solid var(--accent);
}

.media-queries {
  border-left: 0.25rem solid var(--accent-secondary);
}

.resources {
  margin-top: 2.5rem;
  padding: 1.2rem 1.5rem;
  background: #f6fafd;
  border-radius: 0.5rem;
  border-left: 0.25rem solid var(--resources-accent);
}

.resources h2 {
  margin-top: 0;
  color: var(--resources-accent);
}

.resources ul {
  margin: 0;
  padding-left: 1.2em;
}

/* Media Queries for this page */
@media (max-width: 43.75rem) {
  main {
    padding: 1.5rem 1rem;
  }
  
  .code-demo {
    flex-direction: column;
    gap: 1rem;
  }
  
  .code-block,
  .live-demo {
    max-width: 100%;
    width: 100%;
  }
  
  .approach {
    flex: 1 1 100%;
  }
}

@media (min-width: 37.5rem) {
  .approach {
    flex: 1 1 calc(50% - 0.625rem);
  }
}