* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  color: #1d1d1f;
  background: #fff;
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "Hiragino Sans",
    "Yu Gothic",
    sans-serif;
  line-height: 1.75;
}

a {
  color: inherit;
  text-underline-offset: 3px;
}

.site-header {
  border-bottom: 1px solid #e5e5e5;
  background: #fff;
}

.site-header-inner,
.site-footer-inner {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-header-inner {
  min-height: 96px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: .02em;
}

.site-brand-icon {
  width: 88px;
  height: 88px;
  border-radius: 14px;
  flex: 0 0 auto;
  object-fit: contain;
}

.site-brand-name {
  font-size: 1rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.site-nav a {
  text-decoration: none;
  font-weight: 600;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  text-decoration: underline;
}

.site-main {
  min-height: calc(100vh - 220px);
}

.site-footer {
  margin-top: 72px;
  border-top: 1px solid #e5e5e5;
  background: #fafafa;
}

.site-footer-inner {
  padding-top: 28px;
  padding-bottom: 36px;
}

.footer-brand {
  font-weight: 800;
  margin-bottom: 8px;
}

.footer-note {
  max-width: 760px;
  margin: 0;
  color: #555;
  font-size: .92rem;
}

@media (max-width: 640px) {
  .site-header-inner {
    min-height: 80px;
  }

  .site-brand-icon {
    width: 72px;
    height: 72px;
  }

  .site-footer {
    margin-top: 48px;
  }
}


.page-shell,
.search-page {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 20px 80px;
}

.answer-page {
  max-width: 760px;
  margin: 0 auto;
}

.answer-page h1,
.search-page h1 {
  line-height: 1.35;
  margin-top: 0;
  margin-bottom: 12px;
}

.answer-page h2 {
  margin-top: 36px;
}

.question {
  font-size: 1.15rem;
  font-weight: 600;
}

.lead {
  margin: 24px 0;
  padding: 20px;
  background: #f6f7f8;
  border-radius: 10px;
}

.applicability,
.sources,
.disclaimer {
  margin-top: 36px;
  padding: 20px;
  border: 1px solid #ddd;
  border-radius: 10px;
}

.sources {
  border-width: 2px;
}

.sources li {
  margin: 12px 0;
}

.disclaimer {
  font-size: .94rem;
  background: #fafafa;
}

.intro {
  margin-top: 0;
  color: #555;
}

.search-panel {
  margin-top: 28px;
  padding: 20px;
  border: 1px solid #ddd;
  border-radius: 12px;
  background: #fafafa;
}

.search-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.search-page label {
  display: block;
  font-weight: 600;
  margin-bottom: 5px;
}

.search-page input,
.search-page select {
  width: 100%;
  min-height: 46px;
  padding: 9px 11px;
  border: 1px solid #bbb;
  border-radius: 8px;
  background: #fff;
  color: #1d1d1f;
  font: inherit;
}

.search-page input:focus,
.search-page select:focus {
  outline: 2px solid #555;
  outline-offset: 2px;
}

.filters {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 14px;
}

.status {
  min-height: 1.5em;
  margin: 20px 0 8px;
  color: #555;
}

.results {
  list-style: none;
  padding: 0;
  margin: 0;
}

.result {
  padding: 22px 0;
  border-top: 1px solid #ddd;
}

.result:first-child {
  border-top: 0;
}

.result h2 {
  margin: 0 0 8px;
  font-size: 1.2rem;
  line-height: 1.45;
}

.excerpt {
  margin: 0;
  color: #444;
}

mark {
  font-weight: 700;
}

@media (max-width: 640px) {
  .page-shell,
  .search-page {
    padding-top: 24px;
  }

  .filters {
    grid-template-columns: 1fr;
  }
}

.search-actions {
  margin-top: 14px;
  display: flex;
  justify-content: flex-start;
}

/* Static crawlable directory */

.directory-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 9px 16px;
  border: 1px solid #999;
  border-radius: 8px;
  background: #fff;
  color: #1d1d1f;
  font-weight: 700;
  text-decoration: none;
}

.directory-link:hover,
.directory-link:focus-visible {
  background: #f2f2f2;
  border-color: #777;
}

.directory-page {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 20px 80px;
}

.directory-page h1 {
  margin-top: 0;
  margin-bottom: 12px;
  line-height: 1.35;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
  margin-bottom: 24px;
  color: #666;
  font-size: .9rem;
}

.breadcrumbs a {
  color: inherit;
}

.directory-branch-grid,
.directory-topic-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 24px;
}

.directory-branch-card,
.directory-topic-card {
  display: block;
  padding: 18px;
  border: 1px solid #ccc;
  border-radius: 10px;
  background: #fff;
  color: #1d1d1f;
  text-decoration: none;
}

.directory-branch-card:hover,
.directory-branch-card:focus-visible,
.directory-topic-card:hover,
.directory-topic-card:focus-visible {
  background: #f6f7f8;
  border-color: #777;
}

.directory-branch-card strong,
.directory-branch-card span,
.directory-topic-card strong,
.directory-topic-card span {
  display: block;
}

.directory-branch-card span,
.directory-topic-card span {
  margin-top: 5px;
  color: #666;
  font-size: .9rem;
}

.directory-answer-list {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
}

.directory-answer-list li {
  border-top: 1px solid #ddd;
}

.directory-answer-list li:first-child {
  border-top: 0;
}

.directory-answer-list a {
  display: block;
  padding: 16px 0;
  color: inherit;
  text-decoration: none;
}

.directory-answer-list a:hover strong,
.directory-answer-list a:focus-visible strong {
  text-decoration: underline;
}

.directory-answer-list strong,
.directory-answer-list span {
  display: block;
}

.directory-answer-list span {
  margin-top: 4px;
  color: #555;
  font-size: .94rem;
}

@media (max-width: 640px) {
  .directory-page {
    padding-top: 24px;
  }

  .directory-branch-grid,
  .directory-topic-grid {
    grid-template-columns: 1fr;
  }
}

/* TDUQL question sharing */
.tduql-share-tools {
  margin: 16px 0 8px;
}

.tduql-share-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.tduql-share-tools button {
  cursor: pointer;
  border: 1px solid #cbd0d6;
  border-radius: 8px;
  background: #fff;
  color: #27313c;
  padding: 9px 14px;
  font: inherit;
  font-size: .9rem;
}

.tduql-share-tools button:hover,
.tduql-share-tools button:focus-visible {
  background: #f0f4f8;
  border-color: #65798d;
}

.tduql-qr-panel {
  margin-top: 16px;
  padding: 16px;
  border: 1px solid #e1e5ea;
  border-radius: 10px;
  max-width: 310px;
}

.tduql-qr-panel[hidden] {
  display: none;
}

.tduql-qr-panel canvas {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 0 auto 12px;
}

.tduql-share-status {
  font-size: .85rem;
  color: #536579;
}

@media print {
  .tduql-share-actions,
  .tduql-qr-panel button,
  .tduql-share-status {
    display: none;
  }
}