/* 
   Open Data Discourse (ODD) Bespoke CSS Design System
   Civic-lab / urban research / public-interest aesthetic
*/

:root {
  --bg-primary: #FAF8F5; /* Warm, academic paper cream */
  --bg-secondary: #F1ECE3; /* Slightly darker cream for cards and modules */
  --text-primary: #0F172A; /* Deep slate */
  --text-secondary: #334155; /* Muted slate */
  --text-muted: #64748B; /* Light slate */
  --color-primary: #1E293B; /* Deep blue-slate */
  --color-accent: #E05A36; /* Signal Coral */
  --color-border: #D1CAC0; /* Warm beige border */
  --color-border-heavy: #0F172A; /* Direct dark border */
  
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  
  --container-width: 1040px;
  --container-width-narrow: 720px;
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  font-size: 1.05rem;
  -webkit-font-smoothing: antialiased;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 200;
  background-color: var(--color-accent);
  color: #fff;
  padding: 0.65rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
}

.skip-link:focus {
  top: 1rem;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Typography elements */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.25;
}

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

/* Label style for civic-lab metadata */
.mono-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

/* Header Component */
.site-header {
  border-bottom: 2px solid var(--color-border-heavy);
  padding: 1.5rem 0;
  background-color: var(--bg-primary);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.logo-link {
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.logo-accent {
  color: var(--color-accent);
  font-family: var(--font-mono);
}

.logo-text {
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  text-transform: uppercase;
  font-weight: 600;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
}

.nav-link:hover {
  color: var(--color-accent);
}

.nav-link.active {
  border-bottom-color: var(--color-border-heavy);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  border: 2px solid var(--color-border-heavy);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--bg-primary);
}

.btn-primary:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-primary);
}

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

.btn-accent {
  background-color: var(--color-accent);
  color: #FFF;
  border-color: var(--color-accent);
}

.btn-accent:hover {
  background-color: var(--text-primary);
  border-color: var(--text-primary);
}

/* Homepage Structure styling */
.home-container {
  padding: 3rem 0;
}

.hero-section {
  padding-bottom: 4rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 4rem;
}

.hero-content {
  max-width: 800px;
}

.hero-title {
  font-size: 3rem;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.hero-lead {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Section headers */
.section-header {
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 1rem;
}

.section-header h2 {
  font-size: 2rem;
  text-transform: uppercase;
  letter-spacing: -0.01em;
}

.section-header-inline {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 1rem;
}

.section-header-inline h2 {
  font-size: 2rem;
  text-transform: uppercase;
}

.view-all {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-accent);
  padding-bottom: 0.2rem;
}

.view-all:hover {
  color: var(--text-primary);
}

/* Featured Engagement Block */
.featured-engagement {
  margin-bottom: 5rem;
}

.engagement-card {
  background-color: var(--bg-secondary);
  border: 2px solid var(--color-border-heavy);
  padding: 2.5rem;
  position: relative;
}

.engagement-card::before {
  content: "";
  position: absolute;
  top: 6px;
  left: 6px;
  right: -8px;
  bottom: -8px;
  border: 2px solid var(--color-border-heavy);
  z-index: -1;
  background-color: transparent;
}

.engagement-badge {
  display: inline-block;
  background-color: var(--color-accent);
  color: #FFF;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 1rem;
}

.engagement-card h3 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.engagement-card p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

.engagement-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin: 1.5rem 0;
  padding: 1.5rem 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.engagement-feature strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.25rem;
}

.engagement-feature span {
  font-size: 1rem;
  color: var(--text-primary);
}

.engagement-citations {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Impact Metrics Module */
.impact-module {
  margin-bottom: 5rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.stat-card {
  border: 1px solid var(--color-border);
  padding: 2rem;
  background-color: var(--bg-primary);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.stat-card:hover {
  border-color: var(--color-border-heavy);
}

.stat-number {
  font-family: var(--font-mono);
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 1rem;
}

.stat-label {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Insights Preview Section */
.home-insights {
  margin-bottom: 5rem;
}

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

.preview-card {
  border-top: 2px solid var(--color-border-heavy);
  padding-top: 1.5rem;
}

.preview-card time {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  display: block;
  margin-bottom: 0.5rem;
}

.preview-card h3 {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
}

.preview-card h3 a:hover {
  color: var(--color-accent);
}

.preview-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Collaboration CTA */
.collaboration-cta {
  margin-bottom: 2rem;
}

.cta-box {
  background-color: var(--color-primary);
  color: var(--bg-primary);
  padding: 4rem 3rem;
  text-align: center;
  border: 2px solid var(--color-border-heavy);
}

.cta-box h2 {
  color: #FFF;
  font-size: 2.25rem;
  margin-bottom: 1.5rem;
}

.cta-box p {
  color: var(--bg-secondary);
  max-width: 700px;
  margin: 0 auto 2rem;
  font-size: 1.15rem;
}

/* Insights List Page */
.list-container {
  padding: 3rem 1.5rem;
}

.list-header {
  margin-bottom: 4rem;
  max-width: var(--container-width-narrow);
}

.list-header h1 {
  font-size: 2.75rem;
  margin-bottom: 1rem;
}

.list-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
}

.articles-grid {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  max-width: var(--container-width-narrow);
}

.article-card {
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 3rem;
}

.article-card:last-child {
  border-bottom: none;
}

.card-meta {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.card-tag {
  color: var(--color-accent);
}

.card-title {
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

.card-title a:hover {
  color: var(--color-accent);
}

.card-summary {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.card-link {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-accent);
}

/* Single Article View */
.single-article {
  padding: 4rem 1.5rem;
  max-width: var(--container-width-narrow);
}

.article-header {
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 2rem;
}

.article-meta {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  gap: 1.5rem;
  margin-bottom: 1rem;
}

.article-meta .category {
  color: var(--color-accent);
}

.article-title {
  font-size: 3rem;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.article-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.article-featured-image {
  margin: 2rem 0 3rem;
}

.article-featured-image img {
  width: 100%;
  height: auto;
  border: 1px solid var(--color-border);
}

/* Prose formatting for post content */
.prose {
  font-size: 1.1rem;
  line-height: 1.75;
  color: var(--text-primary);
}

.prose p {
  margin-bottom: 1.5rem;
}

.prose h2 {
  font-size: 1.75rem;
  margin: 2.5rem 0 1.25rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.5rem;
}

.prose h3 {
  font-size: 1.4rem;
  margin: 2rem 0 1rem;
}

.prose ul, .prose ol {
  margin-bottom: 1.5rem;
  padding-left: 2rem;
}

.prose li {
  margin-bottom: 0.5rem;
}

.prose blockquote {
  border-left: 4px solid var(--color-accent);
  padding-left: 1.5rem;
  color: var(--text-secondary);
  font-style: italic;
  margin: 2rem 0;
}

.prose img {
  max-width: 100%;
  height: auto;
  margin: 2rem 0;
  border: 1px solid var(--color-border);
  display: block;
}

.prose pre {
  background-color: var(--bg-secondary);
  padding: 1.5rem;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  margin-bottom: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background-color: var(--bg-secondary);
  padding: 0.2rem 0.4rem;
  border-radius: 3px;
}

/* Footer Component */
.site-footer {
  border-top: 2px solid var(--color-border-heavy);
  background-color: var(--bg-secondary);
  padding: 4rem 0 2rem;
  margin-top: 5rem;
}

.footer-container {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
}

.footer-info h3 {
  font-size: 1.25rem;
  text-transform: uppercase;
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}

.footer-info p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  max-width: 500px;
}

.footer-nav h4 {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.footer-nav ul {
  list-style: none;
}

.footer-nav li {
  margin-bottom: 0.5rem;
}

.footer-nav a {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.footer-nav a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  grid-column: 1 / -1;
  border-top: 1px solid var(--color-border);
  padding-top: 2rem;
  margin-top: 1rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Contact Page Specific styling */
.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-top: 2rem;
}

.contact-info-block {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-method-card {
  border: 1px solid var(--color-border);
  padding: 2rem;
  background-color: var(--bg-primary);
}

.contact-method-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--color-accent);
  font-family: var(--font-mono);
  text-transform: uppercase;
}

.contact-method-card p {
  color: var(--text-secondary);
}

.contact-method-card a {
  font-weight: 700;
  border-bottom: 1px solid var(--color-border-heavy);
}

.contact-method-card a:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.25rem;
  }
  
  .header-container {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .site-nav .nav-list {
    gap: 1.25rem;
  }
  
  .footer-container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .contact-container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .engagement-card {
    padding: 1.5rem;
  }
  
  .engagement-features {
    grid-template-columns: 1fr;
  }
}