/* SEED.html - EPUB Editor Styles */

/* CSS Variables for WCAG AA compliant colors */
:root {
  /* WCAG AA compliant colors */
  --color-primary-accessible: #0056b3; /* 5.1:1 contrast with white */
  --color-primary-hover: #004085;
  --color-neutral-bg: #f8f9fa;
  --color-neutral-border: #dee2e6;
  --color-neutral-hover: #e9ecef;
  --color-text-muted: #495057;
  --color-focus: #005fcc;
  --color-focus-shadow: rgba(0, 95, 204, 0.2);
}

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: #333;
  background: #fff;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Accessibility utilities - from sh2.css */

/* Screen reader only text */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Enhanced focus indicators (required) */
*:focus {
  outline: 3px solid #005fcc;
  outline-offset: 2px;
}

/* Skip link pattern */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: #000;
  color: #fff;
  padding: 8px;
  z-index: 1000;
  text-decoration: none;
  border-radius: 0 0 4px 4px;
}

.skip-link:focus {
  top: 0;
}

/* Audience selector fieldset styling */
.audience-selector-fieldset {
  border: none;
  padding: 0;
  margin: 0;
}

.audience-selector-fieldset legend {
  position: absolute;
  left: -9999px; /* Visually hidden but available to screen readers */
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Header and Layout */
header {
  padding: 2rem 0;
  border-bottom: 1px solid #eee;
}

.header-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1rem;
}

.header-text {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: center;
}

.header-description {
  font-size: 1rem;
  color: #666;
  margin: 0;
  line-height: 1.4;
}

main {
  padding: 2rem 0;
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  letter-spacing: -0.02em;
}

.hero {
  text-align: center;
  margin-bottom: 4rem;
}

.hero p {
  font-size: 1.25rem;
  color: #666;
  margin: 0 auto;
  text-align: center;
}

/* Features Grid */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.feature {
  padding: 1.5rem;
  border: 1px solid #eee;
  border-radius: 8px;
}

.feature h3 {
  margin-bottom: 1rem;
  margin-top: 0;
  color: #333;
}

/* App Frame */
.app-frame {
  margin: 3rem 0 0;
  border: 1px solid #ddd;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  position: relative;
}

.app-frame iframe {
  width: 100%;
  height: 75vw;
  max-height: 600px;
  border: none;
  display: block;
}

.app-frame-header {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 10;
}

.fullscreen-toggle {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--color-neutral-border);
  border-radius: 8px;
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  font-size: 1.25rem;
  transition: all 0.2s ease;
  backdrop-filter: blur(4px);
}

.fullscreen-toggle:hover {
  background: rgba(255, 255, 255, 1);
  border-color: var(--color-primary-accessible);
}

.fullscreen-toggle:focus {
  outline: 3px solid var(--color-focus);
  outline-offset: -3px;
}

/* Icon visibility logic */
.fullscreen-icon.compress {
  display: none;
}

.app-frame.fullscreen .fullscreen-icon.expand {
  display: none;
}

.app-frame.fullscreen .fullscreen-icon.compress {
  display: inline;
}

/* Fullscreen overlay state */
.app-frame.fullscreen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 9999;
  background: white;
  margin: 0; /* Override the default 3rem 0 margins to prevent clipping */
}

.app-frame.fullscreen iframe {
  height: 100vh;
  max-height: none;
}

.app-frame.fullscreen .app-frame-header {
  border-radius: 0 0 0 4px;
}

.app-frame.fullscreen .fullscreen-toggle {
  background: rgba(255, 255, 255, 0.9);
  color: #333;
}

/* Body scroll lock when fullscreen active */
body.fullscreen-active {
  overflow: hidden;
}

/* Visually hide radio inputs but keep in tab sequence */
input[name="audience"] {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Audience Selector Styles */
.audience-selector {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin: 2rem 0;
  flex-wrap: wrap;
}

.audience-selector label {
  padding: 0.75rem 1.5rem;
  background: var(--color-neutral-bg);
  border: 2px solid var(--color-neutral-hover);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-weight: 500;
  color: var(--color-text-muted);
}

.audience-selector label:hover {
  background: var(--color-neutral-hover);
  border-color: var(--color-neutral-border);
}

/* Show selected state */
#writers:checked ~ .audience-selector-fieldset .audience-selector label[for="writers"],
#designers:checked ~ .audience-selector-fieldset .audience-selector label[for="designers"],
#developers:checked ~ .audience-selector-fieldset .audience-selector label[for="developers"] {
  background: var(--color-primary-accessible);
  border-color: var(--color-primary-accessible);
  color: white;
}

/* Show focus state for radio buttons */
#writers:focus ~ .audience-selector-fieldset .audience-selector label[for="writers"],
#designers:focus ~ .audience-selector-fieldset .audience-selector label[for="designers"],
#developers:focus ~ .audience-selector-fieldset .audience-selector label[for="developers"] {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
  box-shadow: 0 0 0 6px var(--color-focus-shadow);
}

/* Feature Set Visibility Logic */
.feature-set {
  display: none;
}

/* Show appropriate feature set based on checked radio */
#writers:checked ~ .audience-selector-fieldset ~ .features .writers-features,
#designers:checked ~ .audience-selector-fieldset ~ .features .designers-features,
#developers:checked ~ .audience-selector-fieldset ~ .features .developers-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

/* Language Switcher Styles */
.language-switcher {
  display: flex;
  gap: 0.25rem;
}

.language-switcher a {
  padding: 0.375rem 0.5rem;
  background: var(--color-neutral-bg);
  border: 1px solid var(--color-neutral-border);
  border-radius: 3px;
  text-decoration: none;
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: 0.75rem;
  transition: all 0.2s ease;
  min-width: 2rem;
  text-align: center;
}

.language-switcher a:hover {
  background: var(--color-neutral-hover);
  border-color: #adb5bd;
}

.language-switcher a[aria-current="page"] {
  background: var(--color-primary-accessible);
  border-color: var(--color-primary-accessible);
  color: white;
}

/* Dynamic Subtitle Styles */
.dynamic-subtitle {
  text-align: center;
  margin: 0.5rem 0;
}

.dynamic-subtitle .subtitle {
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--color-text-muted);
  margin: 0;
}

/* Sample Files Section */
.sample-files {
  position: relative;
  margin: 3rem 0;
  padding: 1.5rem;
  background: var(--color-neutral-bg);
  border-radius: 8px;
}

.sample-files h2 {
  margin-bottom: 1.5rem;
  margin-right: 4em;
  color: #333;
  text-align: center;
}

.sample-set {
  display: none;
}

.sample-set ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}

.sample-set li {
  margin-bottom: 0;
  padding: 0.5rem 1rem;
  background: white;
  border-radius: 6px;
  border: 1px solid var(--color-neutral-border);
}

.sample-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  height: 100%;
}

.sample-name {
  font-weight: 500;
  color: #333;
  flex-grow: 1;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.sample-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  background: var(--color-primary-accessible);
  color: white;
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 600;
  flex-shrink: 0;
}

.sample-buttons {
  display: flex;
  gap: 0.5rem;
}

.btn-open,
.btn-download {
  padding: 0.375rem 0.75rem;
  border-radius: 4px;
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid var(--color-primary-accessible);
  transition: all 0.2s ease;
  cursor: pointer;
}

.btn-open {
  background: var(--color-primary-accessible);
  color: white;
  border: 1px solid var(--color-primary-accessible);
}

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

.btn-download {
  background: white;
  color: var(--color-primary-accessible);
  border: 1px solid var(--color-primary-accessible);
}

.btn-download:hover {
  background: var(--color-primary-accessible);
  color: white;
}

/* Show appropriate sample set based on checked radio */
#writers:checked ~ .audience-selector-fieldset ~ .features ~ .sample-files .writers-samples,
#designers:checked ~ .audience-selector-fieldset ~ .features ~ .sample-files .designers-samples,
#developers:checked ~ .audience-selector-fieldset ~ .features ~ .sample-files .developers-samples {
  display: block;
}

/* Show All Toggle Styles */
.show-all-toggle {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.show-all-button {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.5rem 1rem;
  background: var(--color-primary-accessible);
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.2s ease;
  z-index: 5;
}

.show-all-button:hover {
  background: var(--color-primary-hover);
}

.show-all-button:focus,
.show-all-toggle:focus + .sample-files .show-all-button {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

/* Toggle button text spans */
.show-all-toggle:not(:checked) + .sample-files .show-all-button .show-current-text {
  display: none;
}

.show-all-toggle:checked + .sample-files .show-all-button .show-all-text {
  display: none;
}

/* Hide individual sample sets when show-all is checked */
.show-all-toggle:checked + .sample-files .writers-samples,
.show-all-toggle:checked + .sample-files .designers-samples,
.show-all-toggle:checked + .sample-files .developers-samples {
  display: none !important;
}

/* Show all-samples when checkbox is checked */
.show-all-toggle:checked + .sample-files .all-samples {
  display: block;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .sample-set ul {
    grid-template-columns: 1fr;
  }
}

/* Footer Styles */
footer {
  padding: 2rem 0;
  border-top: 1px solid #eee;
  margin-top: 2rem;
}

.footer-language-nav {
  display: flex;
  justify-content: center;
}

/* License Section Styles */
.license-section {
  margin: 3rem 0 2rem;
  padding: 2rem;
  border: 1px solid var(--color-neutral-border);
  border-radius: 8px;
  background: var(--color-neutral-bg);
  text-align: center;
}

.license-section h2 {
  margin-top: 0;
  margin-bottom: 1.5rem;
  color: var(--color-text);
  font-size: 1.5rem;
}

.license-text {
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  white-space: pre-wrap;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  text-align: left;
  background: none;
  border: none;
  padding: 0;
}

.open-in-window-section {
  text-align: right;
}
.open-in-window-section a {
  text-decoration: none;
}

.download-button {
  display: inline-block !important;
  padding: 1rem 2rem !important;
  font-size: 1.1rem !important;
  font-weight: 600 !important;
  color: white !important;
  background: var(--color-primary-accessible) !important;
  border: none !important;
  border-radius: 8px !important;
  text-decoration: none !important;
  transition: all 0.2s ease !important;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1) !important;
}

.download-button:hover {
  background: var(--color-primary-hover) !important;
  transform: translateY(-1px) !important;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15) !important;
  text-decoration: none !important;
  color: white !important;
}

.download-button:focus {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
  box-shadow: 0 0 0 6px var(--color-focus-shadow);
}

/* Breadcrumb Navigation */
.breadcrumb-nav {
  background: var(--color-neutral-bg);
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-neutral-border);
}

.breadcrumb {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
}

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

.breadcrumb-item a {
  color: var(--color-primary-accessible);
  text-decoration: none;
}

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

.breadcrumb-item:not(.current)::after {
  content: "›";
  margin-left: 0.5rem;
  color: var(--color-text-muted);
}

.breadcrumb-item.current {
  color: #333;
  font-weight: 500;
}

/* Q&A Content Styles */
.qa-content {
  max-width: 800px;
  margin: 0 auto;
}

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

.qa-section:last-child {
  border-bottom: none;
  margin-bottom: 2rem;
}

.qa-section h2 {
  font-size: 1.5rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-primary-accessible);
}

.qa-answer {
  line-height: 1.7;
  color: #444;
}

.qa-answer p,
.qa-answer ul {
  margin-bottom: 1rem;
}

.qa-answer p:last-child {
  margin-bottom: 0;
}

/* Links in Q&A content */
.qa-answer a {
  color: var(--color-primary-accessible);
  text-decoration: underline;
}

.qa-answer a:hover {
  color: var(--color-primary-hover);
}

/* Questions Button */
.questions-button {
  display: inline-block !important;
  padding: 0.75rem 1.5rem !important;
  font-size: 1rem !important;
  font-weight: 500 !important;
  color: var(--color-primary-accessible) !important;
  background: white !important;
  border: 2px solid var(--color-primary-accessible) !important;
  border-radius: 6px !important;
  text-decoration: none !important;
  transition: all 0.2s ease !important;
  margin-top: 2rem !important;
}

.questions-button:hover {
  background: var(--color-primary-accessible) !important;
  color: white !important;
  text-decoration: none !important;
}

.questions-button:focus {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
  box-shadow: 0 0 0 6px var(--color-focus-shadow);
}

/* Responsive Design */
@media(max-width: 768px) {
  h1 {
    font-size: 2rem;
  }
  
  .hero p {
    font-size: 1.1rem;
  }
  
  main {
    padding: 1.5rem 0;
  }
  
  .header-content {
    gap: 1rem;
  }
  
  .header-text {
    gap: 0.25rem;
  }
  
  .header-description {
    font-size: 0.9rem;
  }
  
  .dynamic-subtitle {
    margin: 1rem 0;
  }
  
  .features {
    margin-top: 1.5rem;
  }
  
  .sample-files {
    margin: 2rem 0;
    padding: 1rem;
  }
  
  .license-section {
    margin: 2rem 0;
    padding: 1.5rem;
  }
  
  .download-button {
    width: 100%;
    max-width: 300px;
  }
}