/* CSS Variables */
:root {
  --color-primary: #006B4E;
  --color-primary-dark: #005540;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-background: #ffffff;
  --color-card-bg: #d9d9d9;
  --color-border: transparent;
  --color-link: #006B4E;
  --font-family: Arial, Helvetica, sans-serif;
  --container-width: 1400px;
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;
}

/* Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Base */
html {
  font-size: 18px;
  line-height: 1.4;
}

body {
  font-family: var(--font-family);
  color: var(--color-text);
  background-color: var(--color-background);
}

a {
  color: var(--color-link);
  text-decoration: underline;
}

a:hover {
  text-decoration: none;
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.3;
  font-weight: 600;
}

/* Container */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
  width: 100%;
}

/* Header */
.site-header {
  padding: var(--spacing-lg) 0;
}

.site-title {
  font-size: 1.5rem;
  font-weight: 400;
}

.site-title a {
  color: var(--color-primary);
  text-decoration: none;
}

.site-title a:hover {
  text-decoration: underline;
}

/* Breadcrumb */
.breadcrumb {
  padding: var(--spacing-md) 0;
  font-size: 0.9rem;
  color: var(--color-text);
}

.breadcrumb a {
  color: var(--color-text);
  text-decoration: underline;
}

/* Main content area */
main {
  padding: var(--spacing-xl) 0;
}

/* Intro section */
.intro {
  margin-bottom: var(--spacing-xxl);
  line-height: 1.4;
}

.intro p {
  margin-bottom: var(--spacing-sm);
}

/* Section headings */
.section-heading {
  margin-bottom: var(--spacing-lg);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Practices Grid */
.practices-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.practice-card {
  background-color: var(--color-card-bg);
  padding: var(--spacing-lg);
  min-height: 216px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-decoration: none;
  color: var(--color-text);
  transition: background-color 0.2s ease;
  position: relative;
}

.practice-card:hover {
  background-color: #c9c9c9;
}

.practice-card .example-count {
  font-size: 0.8rem;
  color: var(--color-text-light);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.practice-card:hover .example-count {
  opacity: 1;
}

.practice-card h3 {
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.4;
}

/* Outputs Page */
.outputs-page .intro {
  margin-bottom: var(--spacing-xl);
}

.output-list {
  list-style: none;
}

.output-item {
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: #fffdf5;
  border-radius: 4px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.output-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.06);
}

.output-item .citation {
  margin-bottom: var(--spacing-xs);
  line-height: 1.4;
}

.output-item .doi {
  margin-bottom: var(--spacing-sm);
}

.output-item .doi a {
  word-break: break-all;
}

.output-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-top: var(--spacing-sm);
  font-size: 0.85rem;
}

.output-tags li {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.output-tags a {
  color: var(--color-text-light);
  text-decoration: none;
  transition: color 0.15s ease;
}

.output-tags a:hover {
  color: var(--color-text);
}

.tag-dot {
  width: 10px;
  height: 10px;
  background-color: #ccc;
  border-radius: 50%;
  display: inline-block;
}

/* Practice Page - Two Column Layout */
.practice-page {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: var(--spacing-xxl);
}

.practice-content {
  max-width: 100%;
}

.practice-header h1 {
  font-size: 2rem;
  font-weight: 400;
  margin-bottom: var(--spacing-md);
}

.last-updated {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-xl);
}

.last-updated strong {
  font-weight: 600;
}

.show-versions {
  margin-left: var(--spacing-sm);
}

.description h2 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-md);
}

.description p {
  margin-bottom: var(--spacing-sm);
  line-height: 1.4;
}

/* Practice Sidebar */
.practice-sidebar {
  position: sticky;
  top: var(--spacing-lg);
  align-self: start;
}

.practice-image {
  margin-bottom: var(--spacing-xl);
}

.practice-image img {
  width: 100%;
  height: auto;
  display: block;
}

.practice-image figcaption {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-top: var(--spacing-sm);
  font-style: italic;
}

.examples h2 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-md);
}

.examples .output-list {
  font-size: 0.9rem;
}

.examples .output-item {
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-md);
}

.examples .citation {
  font-size: 0.9rem;
}

.examples .doi {
  font-size: 0.85rem;
}

.examples .output-tags {
  font-size: 0.75rem;
}

/* Footer */
.site-footer {
  padding: var(--spacing-xl) 0;
  margin-top: var(--spacing-xxl);
}

.site-footer p {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

/* Responsive */
@media (max-width: 768px) {
  .practices-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .practice-page {
    grid-template-columns: 1fr;
  }
  
  .practice-sidebar {
    position: static;
  }
}

@media (max-width: 480px) {
  .practices-grid {
    grid-template-columns: 1fr;
  }
  
  .site-title {
    font-size: 1.2rem;
  }
}