/*Reset and base styles
 * @file faq.css
 * @version 1.0
 * @author Tom Cranstoun
 *
 * @mx:category mx-tools
 * @mx:status active
 * @mx:contentType stylesheet
 * @mx:tags tool
 * @mx:partOf mx-os
*/

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/*EDS Design System Variables */
:root {
  /* Colors*/
  --link-color: #035fe6;
  --link-hover-color: #136ff6;
  --background-color: white;
  --light-color: #eee;
  --dark-color: #ccc;
  --text-color: #1f2937;

  /*Typography*/
  --body-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --body-font-size-m: 22px;
  --body-font-size-s: 18px;
  --heading-font-size-xxl: 48px;
  --heading-font-size-xl: 40px;
  --heading-font-size-l: 32px;

  /*FAQ-specific*/
  --faq-spacing: 22px;
  --faq-border-radius: 8px;
  --faq-transition: 0.2s ease;
  --faq-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

@media (width >= 900px) {
  :root {
    --heading-font-size-xxl: 60px;
    --heading-font-size-xl: 48px;
    --heading-font-size-l: 36px;
  }
}

body {
  font-family: var(--body-font-family);
  line-height: 1.6;
  color: var(--text-color);
  background: var(--background-color);
}

/*Hero Section*/
.faq-hero {
  background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
  color: white;
  padding: 3rem 2rem;
  text-align: center;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.faq-hero-content {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}

.home-link {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  color: white;
  text-decoration: none;
  font-size: 1.5rem;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  transition: background 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.home-link:hover {
  background: rgba(255, 255, 255, 0.2);
}

.faq-hero h1 {
  font-size: var(--heading-font-size-xxl);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.faq-hero p {
  font-size: 1.25rem;
  opacity: 0.95;
  max-width: 800px;
  margin: 0 auto;
}

/*Container*/
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/*Search Bar*/
.faq-search {
  max-width: 600px;
  margin: 0 auto 2rem;
  position: relative;
}

.faq-search input {
  width: 100%;
  padding: 1rem 3rem 1rem 1.5rem;
  border: 2px solid var(--dark-color);
  border-radius: 50px;
  font-size: var(--body-font-size-m);
  font-family: var(--body-font-family);
  transition: border-color var(--faq-transition);
}

.faq-search input:focus {
  outline: none;
  border-color: var(--link-color);
  box-shadow: 0 0 0 3px rgba(3, 95, 230, 0.1);
}

.faq-search #clear-search {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--text-color);
  cursor: pointer;
  opacity: 0;
  transition: opacity var(--faq-transition);
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.faq-search #clear-search.visible {
  opacity: 0.5;
}

.faq-search #clear-search:hover {
  opacity: 1;
}

.search-results-count {
  text-align: center;
  color: #6b7280;
  margin-top: 0.5rem;
  font-size: var(--body-font-size-s);
}

/*Controls*/
.faq-controls {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.control-btn {
  padding: 0.75rem 1.5rem;
  border: 2px solid var(--dark-color);
  border-radius: 30px;
  background: white;
  color: var(--text-color);
  font-size: var(--body-font-size-s);
  font-family: var(--body-font-family);
  cursor: pointer;
  transition: all var(--faq-transition);
}

.control-btn:hover {
  background: var(--link-color);
  color: white;
  border-color: var(--link-color);
}

/*Category Navigation*/
.category-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 1rem 1.5rem;
  position: sticky;
  top: 0;
  background: white;
  z-index: 10;
  border-bottom: 1px solid var(--light-color);
  margin: 0 auto 2rem;
  max-width: 1200px;
  justify-content: center;
}

.category-nav::-webkit-scrollbar {
  height: 6px;
}

.category-nav::-webkit-scrollbar-thumb {
  background: var(--dark-color);
  border-radius: 3px;
}

.category-nav button {
  padding: 8px 20px;
  border: 2px solid var(--dark-color);
  border-radius: 30px;
  background: white;
  color: var(--text-color);
  font-size: var(--body-font-size-s);
  font-family: var(--body-font-family);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--faq-transition);
}

.category-nav button.active {
  background: var(--link-color);
  color: white;
  border-color: var(--link-color);
}

.category-nav button:hover:not(.active) {
  background: var(--light-color);
}

/*FAQ Categories*/
.faq-category {
  margin-bottom: 3rem;
}

.faq-category h2 {
  font-size: var(--heading-font-size-l);
  color: #1e40af;
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--light-color);
}

/*FAQ Items (Accordion)*/
.faq-item {
  border: 1px solid var(--dark-color);
  border-radius: var(--faq-border-radius);
  margin-bottom: 16px;
  background: white;
  transition: box-shadow var(--faq-transition);
}

.faq-item:hover {
  box-shadow: var(--faq-shadow);
}

.faq-item summary {
  position: relative;
  padding: 1.5rem 4rem 1.5rem 1.5rem;
  cursor: pointer;
  list-style: none;
  font-weight: 500;
  font-size: var(--body-font-size-m);
  transition: background-color var(--faq-transition);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item[open] summary {
  background-color: var(--light-color);
  border-bottom: 1px solid var(--dark-color);
}

.faq-item summary:hover {
  background-color: var(--light-color);
}

/*Chevron icon*/
.faq-item summary::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 1.5rem;
  transform: translateY(-50%) rotate(135deg);
  width: 10px;
  height: 10px;
  border: 2px solid var(--text-color);
  border-width: 2px 2px 0 0;
  transition: transform var(--faq-transition);
}

.faq-item[open] summary::after {
  transform: translateY(-50%) rotate(-45deg);
}

/*Copy link button*/
.copy-link {
  position: absolute;
  right: 3.5rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  opacity: 0;
  transition: opacity var(--faq-transition);
  padding: 4px;
  color: var(--link-color);
}

.faq-item summary:hover .copy-link {
  opacity: 1;
}

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

.copy-link svg {
  width: 20px;
  height: 20px;
}

/*Answer content*/
.faq-answer {
  padding: 1.5rem;
  line-height: 1.8;
}

.faq-answer p {
  margin-bottom: 1rem;
}

.faq-answer ul,
.faq-answer ol {
  margin-left: 2rem;
  margin-bottom: 1rem;
}

.faq-answer li {
  margin-bottom: 0.5rem;
}

.faq-answer code {
  background: #f3f4f6;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-size: 0.9em;
}

.faq-answer mark {
  background-color: #fef08a;
  padding: 2px 4px;
  border-radius: 2px;
}

/*Jump to Top Button*/
.jump-to-top {
  position: fixed;
  bottom: 2rem;
  left: 2rem;
  width: 50px;
  height: 50px;
  background: var(--link-color);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 999;
}

.jump-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.jump-to-top:hover {
  background: #0247b8;
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.jump-to-top:active {
  transform: translateY(-1px);
}

/*Footer*/
footer {
  background: #f9fafb;
  border-top: 1px solid #e5e7eb;
  padding: 2rem;
  text-align: center;
  margin-top: 4rem;
}

footer p {
  color: #6b7280;
  margin: 0.25rem 0;
}

.contact-links {
  margin: 1.5rem 0;
}

.contact-links a {
  color: #2563eb;
  margin: 0 1rem;
  text-decoration: none;
}

.contact-links a:hover {
  text-decoration: underline;
}

/*Responsive*/
@media (max-width: 768px) {
  .faq-hero {
    padding: 2rem 1rem;
  }

  .home-link {
    position: static;
    transform: none;
    display: inline-flex;
    margin-bottom: 1rem;
    font-size: 1.25rem;
  }

  .faq-hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .faq-hero h1 {
    font-size: 2rem;
  }

  .faq-hero p {
    font-size: 1rem;
  }

  .faq-item summary {
    padding: 1rem 3rem 1rem 1rem;
    font-size: var(--body-font-size-s);
  }

  .copy-link {
    display: none;
  }

  .faq-controls {
    flex-direction: column;
  }

  .control-btn {
    width: 100%;
  }
}

/*No results message*/
.no-results {
  text-align: center;
  padding: 3rem;
  color: #6b7280;
  font-size: var(--body-font-size-m);
}

.no-results.hidden {
  display: none;
}

/*Copy feedback*/
.copy-feedback {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: #10b981;
  color: white;
  padding: 1rem 1.5rem;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s ease;
  pointer-events: none;
}

.copy-feedback.show {
  opacity: 1;
  transform: translateY(0);
}