/* ===== Help Center — Shared Styles ===== */

/* Skip link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  z-index: 9999;
  text-decoration: none;
  font-weight: 600;
  transition: top 0.3s ease;
}
.skip-link:focus {
  top: 1rem;
}

/* Logo */
.logo-wrapper {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.logo-icon {
  width: 24px;
  height: 24px;
  object-fit: contain;
}

/* Dark Mode Toggle */
.theme-toggle {
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  margin-left: var(--spacing-sm);
}
.theme-toggle:hover {
  background: var(--color-background-alt);
}
.theme-toggle svg {
  width: 18px;
  height: 18px;
  fill: var(--color-text);
}
.theme-toggle .icon-sun {
  display: none;
}
.theme-toggle .icon-moon {
  display: block;
}
[data-theme='dark'] .theme-toggle .icon-sun {
  display: block;
}
[data-theme='dark'] .theme-toggle .icon-moon {
  display: none;
}
[data-theme='dark'] .theme-toggle:hover {
  background: var(--color-background-elevated);
}
/* ===== Index Page — Hero & Grid ===== */
.help-hero {
  padding: var(--spacing-xl) var(--spacing-md) var(--spacing-lg);
  background: linear-gradient(135deg, #f8f5ff 0%, #ffffff 100%);
  text-align: center;
}
[data-theme='dark'] .help-hero {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}
.help-hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}
.help-hero .subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.help-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
}
.help-section-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--color-primary);
  display: inline-block;
}
.help-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}
.help-card {
  background: white;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-xl);
  transition: var(--transition);
  text-decoration: none;
  display: block;
  border: 1px solid transparent;
}
.help-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
  border-color: var(--color-primary);
  text-decoration: none;
}
[data-theme='dark'] .help-card {
  background: var(--color-background-elevated);
  border-color: var(--color-border);
}
[data-theme='dark'] .help-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 12px 24px rgba(168, 85, 247, 0.15);
}
.help-card-icon {
  margin-bottom: var(--spacing-md);
  display: block;
}
.help-card-icon svg {
  width: 40px;
  height: 40px;
  color: var(--color-primary);
}
.help-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}
.help-card p {
  color: var(--color-text-light);
  font-size: 0.9rem;
  line-height: 1.6;
  margin: 0;
}
.help-card .card-arrow {
  margin-top: var(--spacing-md);
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* ===== Article Layout (sidebar + content) ===== */
.help-layout {
  display: flex;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
  gap: var(--spacing-xl);
  align-items: flex-start;
}

/* Sidebar */
.help-sidebar {
  width: 250px;
  flex-shrink: 0;
  position: sticky;
  top: 5rem;
  max-height: calc(100vh - 6rem);
  overflow-y: auto;
  padding: var(--spacing-sm) var(--spacing-sm) var(--spacing-sm) 0;
}
.sidebar-title {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted, var(--color-text-light));
  margin-bottom: 0.5rem;
  padding-left: 0.75rem;
}
.sidebar-nav {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--spacing-sm);
}
.sidebar-nav li a {
  display: block;
  padding: 0.45rem 0.75rem;
  border-radius: var(--border-radius);
  color: var(--color-text-light);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--transition);
  border-left: 2px solid transparent;
  line-height: 1.4;
}
.sidebar-nav li a:hover {
  color: var(--color-text);
  background: var(--color-background-alt);
  border-left-color: var(--color-border);
}
.sidebar-nav li a.active {
  color: var(--color-primary);
  background: var(--color-primary-light, rgba(90, 26, 99, 0.06));
  border-left-color: var(--color-primary);
  font-weight: 600;
}
[data-theme='dark'] .sidebar-nav li a:hover {
  color: var(--color-text);
  background: var(--color-background-elevated);
  border-left-color: var(--color-border);
}
[data-theme='dark'] .sidebar-nav li a.active {
  color: var(--color-primary);
  background: rgba(167, 139, 250, 0.08);
  border-left-color: var(--color-primary);
}

/* Breadcrumb */
.breadcrumb {
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
}
.breadcrumb a {
  color: var(--color-primary);
  text-decoration: none;
}
.breadcrumb a:hover {
  text-decoration: underline;
}
.breadcrumb span {
  margin: 0 0.4rem;
}
/* Article */
.help-article {
  flex: 1;
  min-width: 0;
}
.article-header {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}
.article-header h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.article-header h1 svg {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  color: var(--color-primary);
}
.article-header .lead {
  font-size: 1.1rem;
  color: var(--color-text-light);
  line-height: 1.7;
}
/* Article body */
.article-body h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-text);
  margin: var(--spacing-xl) 0 var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--color-border);
}
.article-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  margin: var(--spacing-lg) 0 var(--spacing-sm);
}
.article-body p {
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: var(--spacing-md);
}
.article-body a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.article-body a:hover {
  opacity: 0.8;
}
.article-body ul:not(.changelog-items) {
  list-style: none;
  padding-left: 1.5rem;
  margin-bottom: var(--spacing-md);
}
.article-body ul:not(.changelog-items) > li {
  position: relative;
  padding-left: 1.25rem;
}
.article-body ul:not(.changelog-items) > li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 6px;
  height: 6px;
  background: var(--color-primary);
  border-radius: 50%;
}
.article-body ol {
  padding-left: 1.5rem;
  margin-bottom: var(--spacing-md);
}
.article-body ol li::marker {
  color: var(--color-primary);
  font-weight: 700;
}
.article-body li {
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 0.25rem;
}

/* Steps (counter-based) */
.steps {
  counter-reset: step-counter;
  list-style: none;
  padding: 0;
  margin-bottom: var(--spacing-lg);
}
.steps li {
  counter-increment: step-counter;
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-md);
  background: #f8f5ff;
  border-radius: var(--border-radius);
}
[data-theme='dark'] .steps li {
  background: var(--color-background-elevated);
}
.steps li::before {
  content: counter(step-counter);
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  height: 2rem;
  background: var(--color-primary);
  color: white;
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.875rem;
  flex-shrink: 0;
}
.steps li .step-content {
  flex: 1;
}
.steps li strong {
  color: var(--color-text);
  display: block;
  margin-bottom: 0.25rem;
}
.steps li p {
  margin: 0;
  font-size: 0.9rem;
}

/* Step cards (timeline redesign for quickstart) */
.step-cards {
  position: relative;
  padding-left: 2rem;
  margin-bottom: var(--spacing-lg);
}
.step-cards::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-primary);
  opacity: 0.3;
}
.step-card {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  position: relative;
}
.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  height: 2rem;
  background: var(--color-primary);
  color: white;
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.875rem;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}
.step-body {
  flex: 1;
  background: #f8f5ff;
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
}
[data-theme='dark'] .step-body {
  background: var(--color-background-elevated);
}
.step-body h3 {
  margin: 0 0 0.25rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
}
.step-body p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.6;
}
/* Code block */
.code-block {
  background: #1e1e2e;
  color: #cdd6f4;
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  font-family: 'Courier New', monospace;
  font-size: 0.875rem;
  overflow-x: auto;
  margin-bottom: var(--spacing-md);
}

/* Info/warning boxes */
.info-box {
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-md);
  border-left: 4px solid;
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
}
.info-box.tip {
  background: #f0fdf4;
  border-color: #22c55e;
}
.info-box.warning {
  background: #fffbeb;
  border-color: #f59e0b;
}
[data-theme='dark'] .info-box.tip {
  background: #0f1f14;
}
[data-theme='dark'] .info-box.warning {
  background: #1f1a0a;
}
.info-box p {
  margin: 0;
  font-size: 0.9rem;
  flex: 1;
}
.info-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 1px;
}
.info-box.tip .info-icon {
  color: #22c55e;
}
.info-box.warning .info-icon {
  color: #f59e0b;
}

/* Platform cards (quickstart) */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}
.platform-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  text-align: center;
  text-decoration: none;
  transition: var(--transition);
  gap: 0.5rem;
}
.platform-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
[data-theme='dark'] .platform-card {
  background: var(--color-background-elevated);
  border-color: var(--color-border);
}
.platform-card .icon svg {
  width: 32px;
  height: 32px;
  color: var(--color-primary);
}
.platform-card span:last-child {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
}
/* Platform instruction cards (install-html.html) */
.platform-instructions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}
.platform-instruction-card {
  background: #f8f5ff;
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  border: 1px solid transparent;
  transition: var(--transition);
}
.platform-instruction-card:hover {
  border-color: var(--color-primary);
}
[data-theme='dark'] .platform-instruction-card {
  background: var(--color-background-elevated);
  border-color: var(--color-border);
}
.platform-instruction-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: var(--spacing-sm);
}
.platform-instruction-header svg {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
  flex-shrink: 0;
}
.platform-instruction-header h3 {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
}
.platform-badge {
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: 9999px;
  background: #ede9fe;
  color: #6d28d9;
  margin-left: auto;
}
[data-theme='dark'] .platform-badge {
  background: #2e1065;
  color: #c4b5fd;
}
.platform-instruction-body p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.6;
}
/* Feature grid (dashboard guide) */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}
.feature-card {
  background: #f8f5ff;
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  border-left: 3px solid var(--color-primary);
}
[data-theme='dark'] .feature-card {
  background: var(--color-background-elevated);
  border-left-color: var(--color-primary);
}
.feature-card h3 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.feature-card h3 svg {
  width: 18px;
  height: 18px;
  color: var(--color-primary);
  flex-shrink: 0;
}
.feature-card p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.5;
}
/* FAQ accordion */
.faq-section {
  margin-bottom: var(--spacing-xl);
}
.faq-item {
  margin-bottom: var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
}
.faq-question {
  width: 100%;
  text-align: left;
  background: white;
  border: none;
  padding: var(--spacing-md) var(--spacing-lg);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  transition: var(--transition);
}
[data-theme='dark'] .faq-question {
  background: var(--color-background-elevated);
  color: var(--color-text);
}
.faq-question:hover {
  background: #f8f5ff;
}
[data-theme='dark'] .faq-question:hover {
  background: #252540;
}
.faq-question .faq-icon {
  font-size: 1.2rem;
  transition: transform 0.2s ease;
  flex-shrink: 0;
}
.faq-item.open .faq-question .faq-icon {
  transform: rotate(45deg);
}
.faq-answer {
  display: none;
  padding: 0 var(--spacing-lg) var(--spacing-md);
  background: white;
  border-top: 1px solid var(--color-border);
}
[data-theme='dark'] .faq-answer {
  background: var(--color-background-elevated);
  border-color: var(--color-border);
}
.faq-item.open .faq-answer {
  display: block;
}
.faq-answer p {
  color: var(--color-text-light);
  line-height: 1.7;
  margin: var(--spacing-sm) 0 0;
}
/* FAQ items (simple, for install pages) */
.faq-item-simple {
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-md);
  background: #f8f5ff;
  border-radius: var(--border-radius);
}
[data-theme='dark'] .faq-item-simple {
  background: var(--color-background-elevated);
}
.faq-item-simple h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
}
.faq-item-simple p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-light);
}
/* Changelog timeline */
.changelog-entry {
  margin-bottom: var(--spacing-xl);
  border-left: 2px solid var(--color-primary);
  padding-left: var(--spacing-lg);
  position: relative;
}
.changelog-entry::before {
  content: '';
  position: absolute;
  left: -5px;
  top: 0.6rem;
  width: 8px;
  height: 8px;
  background: var(--color-primary);
  border-radius: 50%;
}
.changelog-date {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}
.changelog-version {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
}
.changelog-items {
  list-style: none;
  padding: 0;
}
.changelog-items li {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.6rem;
  align-items: flex-start;
  font-size: 0.95rem;
  color: var(--color-text-light);
  line-height: 1.6;
}
.badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: 9999px;
  flex-shrink: 0;
  margin-top: 0.25rem;
}
.badge-new {
  background: #dcfce7;
  color: #15803d;
}
.badge-fix {
  background: #fef3c7;
  color: #b45309;
}
.badge-improve {
  background: #ede9fe;
  color: #6d28d9;
}
[data-theme='dark'] .badge-new {
  background: #14532d;
  color: #4ade80;
}
[data-theme='dark'] .badge-fix {
  background: #451a03;
  color: #fbbf24;
}
[data-theme='dark'] .badge-improve {
  background: #2e1065;
  color: #c4b5fd;
}

/* Guide images */
.guide-image {
  margin: var(--spacing-md) 0;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  overflow: hidden;
}
.guide-image img {
  width: 100%;
  height: auto;
  display: block;
}
.guide-image-caption {
  padding: var(--spacing-sm);
  font-size: 0.85rem;
  color: var(--color-text-light);
  background: #f8f5ff;
  text-align: center;
  font-style: italic;
}
[data-theme='dark'] .guide-image-caption {
  background: var(--color-background-elevated);
  color: var(--color-text-light);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .help-layout {
    flex-direction: column;
  }
  .help-sidebar {
    width: 100%;
    position: static;
    max-height: none;
    overflow-y: visible;
    padding: var(--spacing-sm);
    background: var(--color-background-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-md);
  }
  [data-theme='dark'] .help-sidebar {
    background: var(--color-background-elevated);
    border-color: var(--color-border);
  }
  .sidebar-title:first-child {
    margin-top: 0;
  }

  .help-hero h1 {
    font-size: 2rem;
  }
  .help-grid {
    grid-template-columns: 1fr;
  }
  .platform-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .platform-instructions-grid {
    grid-template-columns: 1fr;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .sidebar-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
  }
  .sidebar-nav li a {
    border-left: none;
    white-space: nowrap;
    padding: 0.35rem 0.65rem;
    font-size: 0.8rem;
    background: var(--color-background);
    border: 1px solid var(--color-border-light, var(--color-border));
  }
  .sidebar-nav li a:hover {
    border-color: var(--color-border);
  }
  .sidebar-nav li a.active {
    background: var(--color-primary-light, rgba(90, 26, 99, 0.06));
    border-color: var(--color-primary);
  }
  [data-theme='dark'] .sidebar-nav li a {
    background: var(--color-background-elevated);
    border-color: var(--color-border);
  }
  .help-layout {
    padding: var(--spacing-md) var(--spacing-md);
  }
  .help-content {
    padding: var(--spacing-md) var(--spacing-md);
  }
  .help-hero {
    padding: var(--spacing-md) var(--spacing-sm) var(--spacing-md);
  }
}

@media (max-width: 480px) {
  .platform-grid {
    grid-template-columns: 1fr;
  }
  .step-cards::before {
    display: none;
  }
  .step-cards {
    padding-left: 0;
  }
  .step-card {
    flex-direction: column;
  }
  .help-layout {
    padding: var(--spacing-md) var(--spacing-sm);
  }
  .help-content {
    padding: var(--spacing-md) var(--spacing-sm);
  }
  .help-hero {
    padding: var(--spacing-sm) 0 var(--spacing-sm);
  }
  .help-hero h1 {
    font-size: 1.75rem;
  }
  .article-header h1 {
    font-size: 1.5rem;
  }
  .faq-question {
    padding: var(--spacing-sm) var(--spacing-md);
  }
  .faq-answer {
    padding: 0 var(--spacing-md) var(--spacing-sm);
  }
}