/*
 * Greybelt Policy Analysis - Custom Styles
 * Design inspired by AI-2027.com
 */

/* ==================== CSS Variables ==================== */
:root {
  /* Colors - Neutral palette with strategic accents */
  --color-text-primary: #1a1a1a;
  --color-text-secondary: #4a4a4a;
  --color-text-muted: #6a6a6a;
  --color-background: #ffffff;
  --color-background-alt: #f8f9fa;
  --color-border: #e0e0e0;
  --color-accent: #0066cc;
  --color-accent-hover: #0052a3;
  --color-success: #22863a;
  --color-warning: #f66a0a;
  --color-danger: #d73a49;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
  --font-mono: "SF Mono", Monaco, "Cascadia Code", "Courier New", monospace;

  /* Font sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  /* Layout */
  --max-width-content: 768px;
  --max-width-wide: 1200px;
  --nav-height: 64px;

  /* Effects */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --transition: all 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.app-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* ==================== Landstack Header ==================== */
.landstack-header {
  background-color: #222;
  padding: 0 var(--spacing-xl);
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.landstack-header-logo {
  height: 32px;
  width: auto;
}

.landstack-header-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.landstack-header-link {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  font-family: "Helvetica Neue LT Pro", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: var(--text-sm);
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-md);
  transition: var(--transition);
}

.landstack-header-link:hover {
  color: #ffffff;
}

.landstack-header-separator {
  color: rgba(255, 255, 255, 0.4);
  font-family: "Helvetica Neue LT Pro", "Helvetica Neue", Helvetica, Arial, sans-serif;
  padding: 0 var(--spacing-xs);
}

@media (max-width: 768px) {
  .landstack-header {
    padding: 0 var(--spacing-md);
  }

  .landstack-header-nav {
    gap: var(--spacing-sm);
  }

  .landstack-header-link {
    font-size: var(--text-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
  }
}

/* ==================== Navigation ==================== */
.navigation {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  height: var(--nav-height);
}

.nav-content {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  text-decoration: none;
  color: var(--color-text-primary);
}

.nav-title {
  font-size: var(--text-xl);
  font-weight: 700;
  margin: 0;
}

.nav-links {
  display: flex;
  gap: var(--spacing-xl);
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: var(--transition);
  padding: var(--spacing-sm) 0;
  border-bottom: 2px solid transparent;
}

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

/* ==================== Hero Section ==================== */
.hero-section {
  padding: var(--spacing-3xl) 0;
  background-image: url('/assets/jp_expressionistic_painting_Cotswolds_countryside_landscape_f_35519ec5-2700-4cd4-8558-e2d5d272fd94_2 copy.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.hero-content {
  max-width: var(--max-width-content);
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: var(--spacing-2xl) var(--spacing-xl);
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.hero-title {
  font-size: var(--text-5xl);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-primary);
}

.hero-subtitle {
  font-size: var(--text-2xl);
  font-weight: 400;
  line-height: 1.4;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
}

.hero-summary {
  font-size: var(--text-lg);
  line-height: 1.8;
  color: var(--color-text-secondary);
  max-width: 600px;
}

/* ==================== Article Body ==================== */
.article-body {
  max-width: 100%;
  width: 100%;
  margin: 0;
  padding: var(--spacing-3xl) var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3xl);
}

.article-row {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-xl);
  align-items: start;
  min-height: 400px; /* Ensure graphs have room to stick */
}

.article-spacer {
  /* No longer needed - remove from HTML */
  display: none;
}

.article-content {
  /* Left column - text content (2/3 of screen) */
  max-width: 100%;
  padding-left: var(--spacing-2xl);
  padding-right: 0;
}

.article-visuals {
  /* Right column - graphs for this section */
  position: sticky;
  top: var(--spacing-xl);
  height: fit-content;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  padding-right: var(--spacing-lg);
}

.content-section {
  margin-bottom: var(--spacing-3xl);
  scroll-margin-top: calc(var(--nav-height) + var(--spacing-lg));
}

.section-title {
  font-size: var(--text-3xl);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: var(--spacing-xl);
  color: var(--color-text-primary);
}

.section-content p {
  font-size: var(--text-lg);
  line-height: 1.8;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-secondary);
}

.section-content h3 {
  font-size: var(--text-2xl);
  font-weight: 600;
  margin-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-md);
}

.section-content h4 {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-sm);
}

.section-content ul, .section-content ol {
  margin-left: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

.section-content li {
  font-size: var(--text-lg);
  line-height: 1.8;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-secondary);
}

/* Content subheadings (from config markdown) */
.content-subheading {
  font-size: var(--text-2xl);
  font-weight: 600;
  margin-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

.content-list {
  margin-left: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

.content-list li {
  font-size: var(--text-lg);
  line-height: 1.8;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-secondary);
}

/* ==================== Expandable Sections ==================== */
.expandable-section {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  margin-bottom: var(--spacing-md);
  background-color: var(--color-background);
  transition: var(--transition);
}

.expandable-section:hover {
  box-shadow: var(--shadow-sm);
}

.expandable-title {
  font-size: var(--text-lg);
  font-weight: 600;
  padding: var(--spacing-md) var(--spacing-lg);
  cursor: pointer;
  user-select: none;
  list-style: none;
  display: flex;
  align-items: center;
  color: var(--color-text-primary);
}

.expandable-title::before {
  content: "▸";
  margin-right: var(--spacing-sm);
  transition: transform 0.2s;
}

.expandable-section[open] .expandable-title::before {
  transform: rotate(90deg);
}

.expandable-content {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
  color: var(--color-text-secondary);
}

/* ==================== Links ==================== */
a {
  color: var(--color-accent);
  text-decoration: underline;
  transition: var(--transition);
}

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

/* ==================== Footer ==================== */
.footer {
  margin-top: auto;
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-background-alt);
  border-top: 1px solid var(--color-border);
}

.footer-content {
  max-width: var(--max-width-content);
  margin: 0 auto;
  text-align: center;
}

.footer-text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
}

/* Graph container styling */
.graph-container {
  background-color: var(--color-background);
  border: none;
  border-radius: 0;
  padding: 0;
  box-shadow: none;
  transition: var(--transition);
}

/* Map container styling */
.map-container-inline {
  margin: var(--spacing-2xl) 0;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.map-caption {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: var(--color-background-alt);
  margin: 0;
  font-style: italic;
  border-top: 1px solid var(--color-border);
}

.graph-container.active {
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

.graph-title {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

.graph-caption {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--spacing-md);
  font-style: italic;
}

/* ==================== Responsive Design ==================== */
@media (max-width: 1024px) {
  .article-row {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
    min-height: auto;
  }

  .article-spacer {
    display: none;
  }

  .article-visuals {
    position: relative;
    top: auto;
    max-height: none;
    order: 2;
  }

  .article-content {
    order: 1;
  }
}

@media (max-width: 768px) {
  :root {
    --text-5xl: 2rem;
    --text-4xl: 1.75rem;
    --text-3xl: 1.5rem;
    --nav-height: 56px;
  }

  .nav-links {
    gap: var(--spacing-md);
  }

  .nav-link {
    font-size: var(--text-xs);
  }

  .hero-section {
    padding: var(--spacing-2xl) 0;
  }

  .article-body {
    padding: var(--spacing-2xl) var(--spacing-md);
  }

  .content-section {
    margin-bottom: var(--spacing-2xl);
  }
}

@media (max-width: 480px) {
  .nav-title {
    font-size: var(--text-base);
  }

  .nav-links {
    display: none; /* Will implement mobile menu later */
  }
}

/* ==================== Chart Styling ==================== */
.plotly-graph-div {
  margin: var(--spacing-xl) 0;
  border-radius: 8px;
  overflow: hidden;
}

/* ==================== Utility Classes ==================== */
.text-center {
  text-align: center;
}

.text-muted {
  color: var(--color-text-muted);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

.mt-xl {
  margin-top: var(--spacing-xl);
}

/* ==================== Call to Action Banner ==================== */
.cta-banner {
  background: linear-gradient(135deg, #598096 0%, #79af9f 100%);
  padding: var(--spacing-3xl) var(--spacing-lg);
  margin-top: var(--spacing-3xl);
}

.cta-content {
  max-width: var(--max-width-content);
  margin: 0 auto;
  text-align: center;
}

.cta-logo {
  height: 60px;
  width: auto;
  margin-bottom: var(--spacing-lg);
  filter: brightness(0) invert(1);
}

.cta-title {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: #ffffff;
  margin-bottom: var(--spacing-md);
}

.cta-subtitle {
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-2xl);
  line-height: 1.6;
}

.cta-section {
  margin-bottom: var(--spacing-2xl);
}

.cta-section:last-child {
  margin-bottom: 0;
}

.cta-section-title {
  font-size: var(--text-xl);
  font-weight: 600;
  color: #ffffff;
  margin-bottom: var(--spacing-sm);
}

.cta-section-text {
  font-size: var(--text-base);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

.cta-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: 8px;
  font-size: var(--text-base);
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  min-width: 160px;
}

.cta-button-primary {
  background-color: #ffffff;
  color: #598096;
}

.cta-button-primary:hover {
  background-color: #f0f0f0;
  color: #4a6d7f;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.cta-button-secondary {
  background-color: rgba(255, 255, 255, 0.15);
  color: #ffffff;
  border: 2px solid rgba(255, 255, 255, 0.5);
}

.cta-button-secondary:hover {
  background-color: rgba(255, 255, 255, 0.25);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.8);
  transform: translateY(-2px);
}

.cta-divider {
  height: 1px;
  background-color: rgba(255, 255, 255, 0.2);
  margin: var(--spacing-2xl) 0;
}

@media (max-width: 768px) {
  .cta-banner {
    padding: var(--spacing-2xl) var(--spacing-md);
  }

  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }

  .cta-button {
    width: 100%;
    max-width: 280px;
  }
}