/**
 * SupportBase frontend base styles
 */
.sf-wrap {
  --sf-primary: #2563eb;
  --sf-accent: #7c3aed;
  --sf-bg: #f8fafc;
  --sf-card-bg: #ffffff;
  --sf-text: #0f172a;
  --sf-muted: #64748b;
  --sf-border: #e2e8f0;
  --sf-radius: 8px;
  --sf-shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, sans-serif;
  color: var(--sf-text);
  line-height: 1.6;
}

.sf-wrap.sf-kb {
  width: 100%;
  max-width: 100%;
}

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

.sf-kb > .sf-container {
  width: 100%;
}

.sf-search {
  position: relative;
  margin-bottom: 2rem;
}

.sf-search__input {
  width: 100%;
  padding: 0.875rem 1rem 0.875rem 2.75rem;
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius);
  font-size: 1rem;
  background: var(--sf-card-bg);
  box-shadow: var(--sf-shadow);
}

.sf-search__input:focus {
  outline: 2px solid var(--sf-primary);
  outline-offset: 2px;
  border-color: var(--sf-primary);
}

.sf-search__icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--sf-muted);
  pointer-events: none;
}

.sf-search-results {
  position: absolute;
  z-index: 100;
  left: 0;
  right: 0;
  top: calc(100% + 4px);
  background: var(--sf-card-bg);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.12);
  max-height: 360px;
  overflow-y: auto;
}

.sf-search-results[hidden] {
  display: none;
}

.sf-search-results__item {
  display: block;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--sf-border);
  text-decoration: none;
  color: inherit;
}

.sf-search-results__item:hover,
.sf-search-results__item:focus {
  background: var(--sf-bg);
  outline: none;
}

.sf-search-results__item mark {
  background: #fef08a;
  padding: 0 2px;
}

.sf-search-results__cta {
  padding: 1rem;
  text-align: center;
  background: var(--sf-bg);
}

.sf-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  background: var(--sf-primary);
  color: #fff;
  border: none;
  border-radius: var(--sf-radius);
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: opacity 0.15s;
}

.sf-btn:hover {
  opacity: 0.9;
  color: #fff;
}

.sf-btn--accent {
  background: var(--sf-accent);
}

.sf-btn--outline {
  background: transparent;
  color: var(--sf-primary);
  border: 1px solid var(--sf-primary);
}

.sf-card {
  background: var(--sf-card-bg);
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius);
  box-shadow: var(--sf-shadow);
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.sf-card__title {
  margin: 0 0 0.5rem;
  font-size: 1.0625rem;
  font-weight: 600;
}

.sf-card__meta {
  font-size: 0.8125rem;
  color: var(--sf-muted);
}

.sf-grid {
  display: grid;
  gap: 1rem;
}

.sf-grid--2 { grid-template-columns: repeat(2, 1fr); }
.sf-grid--3 { grid-template-columns: repeat(3, 1fr); }

@media (max-width: 768px) {
  .sf-grid--2,
  .sf-grid--3 {
    grid-template-columns: 1fr;
  }
}

.sf-topic-card {
  text-align: center;
  padding: 1.5rem;
  transition: transform 0.15s, box-shadow 0.15s;
}

.sf-topic-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.1);
}

.sf-topic-card__icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.sf-faq-item {
  border-bottom: 1px solid var(--sf-border);
}

.sf-faq-item summary {
  padding: 1rem 0;
  cursor: pointer;
  font-weight: 500;
  list-style: none;
}

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

.sf-faq-item__content {
  padding: 0 0 1rem;
  color: var(--sf-muted);
}

.sf-faq-item__content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--sf-radius);
}

.sf-vote {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--sf-border);
}

.sf-vote__btn {
  padding: 0.375rem 0.75rem;
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius);
  background: var(--sf-card-bg);
  cursor: pointer;
  font-size: 0.875rem;
}

.sf-vote__btn:hover {
  border-color: var(--sf-primary);
  color: var(--sf-primary);
}

.sf-empty {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--sf-muted);
}

.sf-empty__title {
  font-size: 1.25rem;
  color: var(--sf-text);
  margin-bottom: 0.5rem;
}

.sf-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.sf-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.375rem 0.5rem;
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
  color: var(--sf-muted);
  line-height: 1.4;
}

.sf-breadcrumb__link {
  color: var(--sf-primary);
  text-decoration: none;
  font-weight: 500;
}

.sf-breadcrumb__link:hover {
  text-decoration: underline;
}

.sf-breadcrumb__sep {
  color: #cbd5e1;
  user-select: none;
}

.sf-breadcrumb__current {
  color: var(--sf-muted);
  min-width: 0;
}

.sf-section-title {
  font-size: 1.125rem;
  margin: 0 0 1rem;
}

.sf-kb-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
}

.sf-kb-topic-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.4375rem 0.875rem;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.2;
  text-decoration: none;
  color: var(--sf-text);
  background: var(--sf-card-bg);
  border: 1px solid var(--sf-border);
  box-shadow: var(--sf-shadow);
  transition: border-color 0.15s, background 0.15s, color 0.15s, box-shadow 0.15s;
}

.sf-kb-topic-pill:hover,
.sf-kb-topic-pill:focus {
  border-color: var(--sf-topic-color, var(--sf-primary));
  outline: none;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.08);
}

.sf-kb-topic-pill.is-active {
  background: var(--sf-topic-color, var(--sf-primary));
  border-color: var(--sf-topic-color, var(--sf-primary));
  color: #fff;
}

.sf-kb-topic-pill__count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.25rem;
  padding: 0.0625rem 0.375rem;
  border-radius: 999px;
  font-size: 0.6875rem;
  font-weight: 600;
  background: rgba(15, 23, 42, 0.08);
}

.sf-kb-topic-pill.is-active .sf-kb-topic-pill__count {
  background: rgba(255, 255, 255, 0.22);
  color: #fff;
}

.sf-kb__topic-intro {
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--sf-topic-color, var(--sf-primary));
}

.sf-kb__topic-title {
  margin: 0 0 0.375rem;
  font-size: 1.5rem;
  line-height: 1.25;
}

.sf-kb-group {
  margin-bottom: 2.5rem;
}

.sf-kb-group:last-child {
  margin-bottom: 0;
}

.sf-kb-group__header {
  margin-bottom: 0.875rem;
}

.sf-kb-group__title {
  margin: 0 0 0.25rem;
  font-size: 1.25rem;
  line-height: 1.3;
  padding-left: 0.75rem;
  border-left: 3px solid var(--sf-topic-color, var(--sf-primary));
}

.sf-kb-group__desc {
  margin: 0;
  padding-left: calc(0.75rem + 3px);
  font-size: 0.9375rem;
}

.sf-kb-articles-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.sf-kb__articles,
.sf-kb-group,
.sf-article-list {
  width: 100%;
}

.sf-topic-card--link {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: transform 0.15s, box-shadow 0.15s;
  cursor: pointer;
}

.sf-topic-card--link:hover,
.sf-topic-card--link:focus {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.12);
  outline: none;
}

.sf-topic-card__cta {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--sf-primary);
}

.sf-article-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border: 1px solid var(--sf-border);
  border-radius: var(--sf-radius);
  background: var(--sf-card-bg);
  overflow: hidden;
}

.sf-article-list__item {
  border-bottom: 1px solid var(--sf-border);
  padding: 0;
}

.sf-article-list__item:last-child {
  border-bottom: none;
}

.sf-article-list__link {
  display: block;
  padding: 1rem 1.25rem;
  text-decoration: none;
  color: inherit;
  transition: background 0.15s;
}

.sf-article-list__link:hover,
.sf-article-list__link:focus {
  background: var(--sf-bg);
  outline: none;
}

.sf-article-list__title {
  display: block;
  font-weight: 600;
  color: var(--sf-primary);
  font-size: 1.0625rem;
}

.sf-article-list__excerpt {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.875rem;
  color: var(--sf-muted);
}

.sf-article-list__topic {
  display: block;
  padding: 0 1.25rem 0.75rem;
  font-size: 0.8125rem;
}

.sf-container--article {
  max-width: 760px;
}

.sf-kb-single__header {
  margin-bottom: 1.75rem;
}

.sf-kb-single__date {
  margin: 0 0 0.5rem;
  font-size: 0.75rem;
  color: var(--sf-muted);
  letter-spacing: 0.01em;
}

.sf-kb-single__title {
  margin: 0;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.sf-kb-single__content {
  padding: 1.75rem 2rem;
}

.sf-kb-single__content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--sf-radius);
}

.sf-kb-single__footer {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--sf-border);
}

.sf-kb-single__back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--sf-primary);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
}

.sf-kb-single__back-link:hover {
  text-decoration: underline;
}

/* Article body typography */
.sf-prose {
  font-size: 1.0625rem;
  line-height: 1.75;
}

.sf-prose > :first-child {
  margin-top: 0;
}

.sf-prose > :last-child {
  margin-bottom: 0;
}

.sf-prose p {
  margin: 0 0 1.25rem;
}

.sf-prose h2,
.sf-prose h3,
.sf-prose h4 {
  margin: 2rem 0 0.75rem;
  line-height: 1.3;
  color: var(--sf-text);
}

.sf-prose h2 { font-size: 1.5rem; }
.sf-prose h3 { font-size: 1.25rem; }
.sf-prose h4 { font-size: 1.0625rem; }

.sf-prose ul,
.sf-prose ol {
  margin: 0 0 1.25rem;
  padding-left: 1.5rem;
}

.sf-prose ul { list-style-type: disc; }
.sf-prose ol { list-style-type: decimal; }

.sf-prose li {
  margin: 0.375rem 0;
}

.sf-prose a {
  color: var(--sf-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.sf-prose a:hover {
  text-decoration-thickness: 2px;
}

.sf-prose blockquote {
  margin: 1.5rem 0;
  padding: 0.75rem 1rem;
  border-left: 3px solid var(--sf-primary);
  background: var(--sf-bg);
  color: var(--sf-muted);
}

.sf-prose pre,
.sf-prose code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9em;
}

.sf-prose pre {
  overflow-x: auto;
  padding: 1rem;
  background: var(--sf-bg);
  border-radius: var(--sf-radius);
  border: 1px solid var(--sf-border);
}

@media (max-width: 640px) {
  .sf-kb-single__content {
    padding: 1.25rem 1rem;
  }
}