/* Terrain Templates - Main Styles */

:root {
  /* Color tokens */
  --color-primary: #2c5f2d;
  --color-primary-dark: #1f4520;
  --color-secondary: #f7a600;
  --color-background: #ffffff;
  --color-surface: #f5f5f5;
  --color-border: #e0e0e0;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-error: #c62828;
  
  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-base: 16px;
  --font-size-small: 14px;
  --font-size-large: 18px;
  --line-height: 1.6;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  
  /* Layout */
  --max-width: 1200px;
  --border-radius: 0.5rem;
}

/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height);
  color: var(--color-text);
  background-color: var(--color-background);
  overflow-x: hidden;
}

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

/* Header */
.site-header {
  text-align: center;
  padding: var(--spacing-lg) 0;
  border-bottom: 2px solid var(--color-primary);
  margin-bottom: var(--spacing-lg);
}

.site-header h1 {
  color: var(--color-primary);
  font-size: 2.5rem;
  margin-bottom: var(--spacing-xs);
}

.subtitle {
  color: var(--color-text-light);
  font-size: var(--font-size-large);
}

/* Page header */
.page-header {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.breadcrumb a {
  color: var(--color-primary);
  text-decoration: none;
  font-size: var(--font-size-small);
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.metadata {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
  align-items: center;
  flex-wrap: wrap;
}

.stream {
  padding: var(--spacing-xs) var(--spacing-sm);
  background-color: var(--color-surface);
  border-radius: var(--border-radius);
  font-size: var(--font-size-small);
  font-weight: 600;
}


.stage-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  align-items: flex-start;
}

.stage-nav-group {
  position: relative;
  display: block;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  min-width: 220px;
  padding: 0;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.stage-nav-group[open] {
  border-color: var(--color-primary);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
}

.stage-nav-summary {
  list-style: none;
  display: flex;
  gap: var(--spacing-xs);
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-xs) var(--spacing-sm);
  cursor: pointer;
  font-size: var(--font-size-small);
  font-weight: 600;
  color: var(--color-primary);
}

.stage-nav-summary::-webkit-details-marker {
  display: none;
}

.stage-nav-summary::after {
  content: '▾';
  font-size: 0.75rem;
  color: var(--color-text-light);
  transition: transform 0.2s ease;
}

.stage-nav-group[open] .stage-nav-summary::after {
  transform: rotate(180deg);
}

.stage-nav-summary-meta {
  font-weight: 400;
  color: var(--color-text-light);
  font-size: 0.75rem;
}

.stage-nav-dropdown {
  display: none;
  padding: var(--spacing-xs) var(--spacing-sm) var(--spacing-sm);
  border-top: 1px solid var(--color-border);
  background-color: var(--color-background);
  border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.stage-nav-group[open] .stage-nav-dropdown {
  display: block;
}

.stage-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.stage-nav-item {
  width: 100%;
}

.stage-link {
  display: block;
  width: 100%;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  font-size: var(--font-size-small);
  text-decoration: none;
  color: var(--color-primary);
  background-color: var(--color-surface);
  transition: background-color 0.2s, border-color 0.2s, color 0.2s;
}

.stage-link:hover,
.stage-link:focus-visible {
  background-color: var(--color-border);
  border-color: var(--color-primary);
}

.stage-link.active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
}

/* Search section */
.search-section {
  margin-bottom: var(--spacing-lg);
}

.search-input {
  width: 100%;
  padding: var(--spacing-sm);
  font-size: var(--font-size-base);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius);
  transition: border-color 0.2s;
}

.search-input:focus {
  outline: none;
  border-color: var(--color-primary);
}

/* Utility for screen-reader-only labels */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Homepage hero section */
.homepage-hero {
  display: grid;
  grid-template-columns: 2fr 1.2fr;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  background: linear-gradient(135deg, rgba(44, 95, 45, 0.1), rgba(247, 166, 0, 0.08));
  border-radius: var(--border-radius);
}

.homepage-hero-main-title {
  font-size: 2.25rem;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.homepage-hero-tagline {
  font-size: var(--font-size-large);
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
}

.homepage-hero-summary {
  font-size: var(--font-size-base);
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
}

.homepage-hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background-color: var(--color-primary);
  color: #ffffff;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  border: none;
  cursor: pointer;
}

.homepage-hero-cta:hover,
.homepage-hero-cta:focus-visible {
  background-color: var(--color-primary-dark);
}

.homepage-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-sm);
  font-size: var(--font-size-small);
  color: var(--color-text-light);
}

.homepage-hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-sm);
}

.homepage-hero-pill {
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  background-color: rgba(44, 95, 45, 0.12);
  color: var(--color-primary-dark);
  font-size: var(--font-size-small);
}

.homepage-hero-aside {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background-color: rgba(255, 255, 255, 0.85);
  border-radius: var(--border-radius);
  border: 1px solid rgba(224, 224, 224, 0.8);
}

.homepage-hero-aside h2 {
  font-size: 1.1rem;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

.homepage-hero-aside p {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
}

/* Filter chips */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-sm);
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  background-color: var(--color-primary);
  color: white;
  border-radius: var(--border-radius);
  font-size: var(--font-size-small);
}

.chip-remove {
  background: none;
  border: none;
  color: white;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0;
  width: 20px;
  height: 20px;
  line-height: 1;
}

.chip-remove:hover {
  opacity: 0.8;
}

/* Stream filters */
.stream-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.filter-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  cursor: pointer;
  transition: all 0.2s;
}

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

.filter-btn.active {
  background-color: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

/* Templates list */
.stream-section {
  margin-bottom: var(--spacing-xl);
}

.stream-section h2 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-xs);
  border-bottom: 2px solid var(--color-border);
}

.template-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-md);
}

.template-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  transition: transform 0.2s, box-shadow 0.2s;
}

.template-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-sm);
}

.card-title {
  font-size: var(--font-size-large);
  color: var(--color-text);
  flex: 1;
}

.card-stage {
  background-color: var(--color-secondary);
  color: white;
  padding: 0.25rem 0.5rem;
  border-radius: var(--border-radius);
  font-size: var(--font-size-small);
  font-weight: 600;
  white-space: nowrap;
}

.card-summary {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-small);
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
}

.tag {
  font-size: var(--font-size-small);
  padding: 0.25rem 0.5rem;
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  color: var(--color-text-light);
}

.card-link {
  display: inline-block;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
}

.card-link:hover {
  text-decoration: underline;
}

/* Content page */
.content {
  max-width: 800px;
  margin: 0 auto;
}

.content h1 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-lg);
  font-size: 2rem;
}

.content h2 {
  color: var(--color-primary-dark);
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  font-size: 1.5rem;
}

.content h3 {
  color: var(--color-text);
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  font-size: 1.25rem;
}

.content p {
  margin-bottom: var(--spacing-md);
}

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

.content li {
  margin-bottom: var(--spacing-xs);
}

.content a {
  color: var(--color-primary);
}

.content a:hover {
  text-decoration: underline;
}

/* Stage layout */

.stage-header {
  margin-bottom: var(--spacing-xl);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
}

.stage-header-meta {
  font-size: var(--font-size-small);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-xs);
}

.stage-header-title {
  font-size: 2rem;
  line-height: 1.2;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.stage-header-summary {
  font-size: var(--font-size-base);
  color: var(--color-text);
  margin: 0;
}

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

.stage-section {
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  margin-bottom: var(--spacing-md);
  overflow: hidden;
}

.stage-section-toggle {
  width: 100%;
  text-align: left;
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-surface);
  border: none;
  border-bottom: 1px solid var(--color-border);
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  min-height: 44px;
}

.stage-section-body {
  padding: var(--spacing-md);
  font-size: var(--font-size-base);
}

.stage-section-body p {
  margin-bottom: var(--spacing-md);
}

.stage-section-body ul,
.stage-section-body ol {
  padding-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.stage-section-body li {
  margin-bottom: var(--spacing-xs);
}

/* Footer */
.page-footer {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
  font-size: var(--font-size-small);
  color: var(--color-text-light);
}

.site-footer {
  text-align: center;
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-light);
  font-size: var(--font-size-small);
}

/* Loading and error states */
.loading,
.error {
  text-align: center;
  padding: var(--spacing-xl);
}

.error {
  color: var(--color-error);
}

.no-results {
  text-align: center;
  color: var(--color-text-light);
  padding: var(--spacing-xl);
}

/* Responsive design */
@media (max-width: 768px) {
  .homepage-hero {
    grid-template-columns: 1fr;
    padding: var(--spacing-md);
  }
  .homepage-hero {
    grid-template-columns: 1fr;
    padding: var(--spacing-md);
  }

  .site-header h1 {
    font-size: 2rem;
  }
  
  .template-cards {
    grid-template-columns: 1fr;
  }
  
  .stream-filters {
    flex-direction: column;
  }
  
  .filter-btn {
    width: 100%;
  }
}

/* Accessibility */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}