:root {
  --ink: var(--sphoto-text);
  --muted: var(--sphoto-muted);
  --accent: var(--sphoto-ink);
  --link: var(--sphoto-text);
  --line: var(--sphoto-line);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: #fff; font-family: var(--sphoto-font); letter-spacing: .03em; line-height: 1.95; overflow-wrap: anywhere; }
a { color: var(--link); text-underline-offset: 4px; }
a:focus-visible, .table-wrap:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }
img { display: block; max-width: 100%; height: auto; }
p { margin: 0 0 24px; }
h1, h2, h3 { line-height: 1.65; margin: 0; text-wrap: balance; }
.guide-header { position: sticky; top: 0; z-index: 20; background: #fff; border-bottom: 1px solid var(--line); }
.guide-header-inner { max-width: 1160px; padding: 14px 28px; margin: auto; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.guide-header img { width: 176px; }
.guide-header nav { display: flex; align-items: center; gap: 32px; }
.guide-header nav a { font-size: 14px; font-weight: 700; text-decoration: none; }
.header-index { color: var(--ink); }
.header-cta { background: var(--accent); color: #fff; border-radius: var(--sphoto-radius); padding: 10px 24px; box-shadow: none; }
.header-cta:hover, .guide-button:hover { background: var(--sphoto-hover); }
.article-shell { max-width: 872px; margin: auto; padding: 0 28px; }
.breadcrumbs { margin: 24px 0 40px; font-size: 12px; line-height: 1.9; color: var(--muted); }
.breadcrumbs a { text-decoration: none; }
.breadcrumbs a:hover { text-decoration: underline; }
.article-category { font-size: 12px; color: var(--muted); font-weight: 500; letter-spacing: .08em; margin: 0 0 13px; }
.article-header h1 { font-size: 32px; font-weight: 700; line-height: 1.65; letter-spacing: .01em; margin: 0 0 23px; }
.article-meta { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px 20px; font-size: 12px; color: var(--muted); border-bottom: 1px solid var(--line); padding-bottom: 22px; }
.article-meta a { color: var(--muted); }
.article-cover { margin: 30px 0 32px; }
.article-cover-images { display: grid; grid-template-columns: 1fr 1fr; max-width: 660px; margin: auto; gap: 12px; align-items: start; }
.article-cover img { width: 100%; height: auto; border-radius: 2px; }
figcaption { font-size: 11px; color: var(--muted); margin-top: 12px; text-align: center; }
.guide-body { max-width: 740px; margin: auto; font-size: 16px; line-height: 2.05; }
.guide-lead { margin: 0 0 32px; }
.article-intro { margin-top: 28px; }
.article-intro .guide-lead { margin-bottom: 0; }
.guide-toc { border-block: 1px solid var(--line); background: var(--sphoto-surface); border-radius: 0; padding: 24px 28px; margin: 0 0 52px; scroll-margin-top: 110px; }
.guide-toc>p { font-size: 15px; font-weight: 700; margin: 0 0 14px; }
.guide-toc ol { margin: 0; padding-left: 1.6em; }
.guide-toc li { color: var(--link); padding-left: 8px; margin: 9px 0; font-size: 14px; }
.guide-toc a { color: var(--ink); text-decoration: none; }
.guide-toc a:hover { color: var(--link); text-decoration: underline; }
.guide-body section { margin: 0 0 54px; scroll-margin-top: 114px; }
.guide-body section>h2 { border-bottom: 1px solid var(--line); padding: 0 0 18px; margin: 0 0 26px; font-size: 25px; font-weight: 700; }
.guide-body ul, .guide-body ol { padding-left: 1.55em; }
.guide-body li { margin: 12px 0; padding-left: 5px; }
.guide-body strong { font-weight: 700; }
blockquote { margin: 28px 0; padding: 22px 24px; border-left: 2px solid #bcbcbc; background: var(--sphoto-surface); font-size: 15px; line-height: 2; }
.text-link { font-size: 15px; font-weight: 700; }
.table-wrap { overflow-x: auto; margin: 24px 0; }
table { border-collapse: collapse; width: 100%; min-width: 540px; font-size: 14px; line-height: 1.85; }
caption { text-align: left; font-size: 12px; color: var(--muted); margin-bottom: 12px; }
th, td { text-align: left; vertical-align: top; border: 1px solid var(--line); padding: 16px; }
thead th { background: var(--sphoto-surface); }
tbody th { width: 25%; }
.table-scroll-hint { display: none; }
.publisher-note { border-top: 1px solid var(--line); padding-top: 26px; margin: 0 0 40px; display: flex; align-items: flex-start; gap: 18px; font-size: 13px; line-height: 1.9; }
.publisher-note img { flex-shrink: 0; width: 48px; height: 48px; }
.publisher-note p { margin: 0 0 5px; }
.guide-join { border: 1px solid var(--line); background: var(--sphoto-surface); border-radius: var(--sphoto-radius); padding: 36px; margin: 48px 0; text-align: left; }
.eyebrow { font-size: 12px; font-weight: 500; color: var(--muted); letter-spacing: .12em; margin: 0 0 14px; }
.guide-body .guide-join>h2, .guide-join>h2 { border: 0; padding: 0; font-size: 23px; margin: 0 0 20px; text-wrap: wrap; }
.guide-join>p:not(.eyebrow):not(.fine-print) { font-size: 14px; line-height: 1.95; margin-bottom: 18px; }
.guide-button { display: block; width: fit-content; max-width: 100%; margin: 25px 0 12px; padding: 15px 26px; background: var(--accent); color: #fff; border-radius: var(--sphoto-radius); text-align: center; font-weight: 700; font-size: 14px; line-height: 1.6; text-decoration: none; box-shadow: none; }
.guide-details { display: inline-block; font-size: 13px; margin: 0 0 22px; }
.fine-print { font-size: 11px; color: var(--muted); line-height: 1.9; margin: 0; }
.related-guides { border-top: 1px solid var(--line); padding: 32px 0 60px; }
.related-guides>h2 { font-size: 22px; margin-bottom: 24px; }
.related-list { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.related-list>a { display: flex; gap: 15px; align-items: flex-start; text-decoration: none; color: var(--ink); }
.related-list img { flex: 0 0 90px; width: 90px; height: 120px; object-fit: cover; border-radius: 2px; }
.related-list .article-category { display: block; margin-bottom: 7px; font-size: 10px; }
.related-list h3 { font-size: 14px; margin-bottom: 7px; }
.read-more { color: var(--link); font-size: 12px; font-weight: 700; }
.related-list a:hover h3, .guide-card a:hover h2 { text-decoration: underline; text-underline-offset: 4px; }
.all-guides { display: inline-block; margin-top: 25px; font-size: 13px; }
.guide-footer { border-top: 1px solid var(--line); padding: 32px 24px; text-align: center; font-size: 12px; }
.guide-footer a { display: inline-block; margin: 6px 12px; color: var(--muted); }
.guide-footer p { margin: 20px 0 0; color: var(--muted); }
.guide-directory { max-width: 1160px; margin: auto; padding: 0 28px; }
.directory-intro { margin: 55px 0 58px; }
.directory-intro h1 { font-size: 38px; font-weight: 700; margin-bottom: 22px; }
.directory-intro>p:last-child { font-size: 15px; color: var(--muted); }
.directory-topics { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 24px 0; margin: 0 0 48px; }
.directory-topics>p { font-size: 14px; font-weight: 700; margin: 0 0 14px; }
.directory-topics ul { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 24px; list-style: none; padding: 0; margin: 0; }
.directory-topics a { font-size: 14px; }
.directory-reports { margin: 56px 0; }
.directory-reports>p:not(.fine-print), .directory-reports li { font-size: 14px; }
.directory-reports ul { padding-left: 1.5em; }
.directory-reports li { margin: 14px 0; }
.section-label { display: flex; justify-content: space-between; align-items: baseline; border-bottom: 1px solid var(--line); padding-bottom: 18px; margin-bottom: 30px; }
.section-label h2 { font-size: 23px; }
.section-label>span { font-size: 11px; letter-spacing: .1em; color: var(--muted); }
.guide-card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.guide-card a { text-decoration: none; color: var(--ink); }
.card-image { aspect-ratio: 4 / 3; overflow: hidden; border-radius: 2px; margin-bottom: 21px; }
.card-image img { width: 100%; height: 100%; object-fit: cover; }
.guide-card .article-category { margin: 0 0 10px; font-size: 11px; }
.guide-card h2 { font-size: 19px; margin-bottom: 15px; }
.card-description { font-size: 13px; color: var(--muted); line-height: 1.9; margin-bottom: 13px; }
.directory-about { max-width: 760px; margin: 64px auto; }
.skip-link { position: absolute; top: -100px; left: 12px; background: #fff; padding: 12px; z-index: 30; }
.skip-link:focus { top: 8px; }
@media (max-width: 700px) {
  .guide-header-inner { padding: 11px 20px; gap: 16px; }
  .guide-header img { width: 133px; }
  .guide-header nav { gap: 0; }
  .header-index { display: none; }
  .guide-header nav a { font-size: 11px; }
  .header-cta { padding: 9px 14px; }
  .article-shell, .guide-directory { padding: 0 20px; }
  .breadcrumbs { font-size: 10px; margin: 19px 0 28px; }
  .article-header h1 { font-size: clamp(23px,6vw,28px); line-height: 1.65; margin-bottom: 18px; }
  .article-meta { font-size: 10px; justify-content: flex-start; gap: 6px 15px; padding-bottom: 19px; }
  .article-cover { margin: 24px 0; }
  .article-cover-images { gap: 8px; }
  .article-cover img { border-radius: 2px; }
  figcaption { font-size: 10px; }
  .guide-body { font-size: 15px; line-height: 2; }
  .guide-lead { margin-bottom: 25px; }
  .guide-toc { padding: 20px; margin-bottom: 38px; }
  .guide-toc li { font-size: 13px; padding-left: 3px; }
  .guide-body section { margin-bottom: 40px; scroll-margin-top: 95px; }
  .guide-body section>h2 { font-size: 21px; padding-left: 0; margin-bottom: 24px; }
  blockquote { padding: 18px; font-size: 14px; }
  .table-scroll-hint { display: block; margin: 20px 0 8px; font-size: 11px; color: var(--muted); }
  .table-scroll-hint+.table-wrap { margin-top: 0; }
  .publisher-note { font-size: 12px; gap: 12px; }
  .publisher-note img { width: 38px; height: 38px; }
  .guide-join { padding: 23px 20px; }
  .guide-body .guide-join>h2, .guide-join>h2 { font-size: 20px; padding: 0; }
  .guide-button { width: 100%; padding: 15px 16px; font-size: 13px; }
  .related-list { grid-template-columns: 1fr; gap: 24px; }
  .related-list img { flex-basis: 76px; width: 76px; height: 101px; }
  .related-list h3 { font-size: 15px; }
  .directory-intro { margin: 34px 0 40px; }
  .directory-intro h1 { font-size: 27px; }
  .directory-intro>p:last-child { font-size: 14px; }
  .directory-topics ul { grid-template-columns: 1fr; }
  .directory-topics { margin-bottom: 36px; }
  .directory-reports .section-label { flex-wrap: wrap; gap: 8px; }
  .guide-card-grid { grid-template-columns: 1fr; gap: 35px; }
  .guide-card>a { display: grid; grid-template-columns: 105px minmax(0,1fr); gap: 18px; }
  .card-image { aspect-ratio: 3 / 4; margin: 0; border-radius: 2px; }
  .guide-card h2 { font-size: 17px; margin-bottom: 12px; }
  .card-description { display: none; }
  .guide-card .article-category { font-size: 10px; }
  .directory-about { margin: 45px 0; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* Preserve a visible keyboard cue without the former blue accent. */
.header-cta, .guide-button { transition: background-color 180ms ease; }
.guide-header nav a.header-cta { letter-spacing: .05em; }
.guide-body a:hover, .directory-topics a:hover, .directory-reports a:hover { text-decoration-thickness: 2px; }
@media (prefers-reduced-motion: reduce) { .header-cta, .guide-button { transition: none; } }