/* Phase 2: retain the site's tokens and typography; scope reading layout changes. */
[hidden] { display: none !important; }
.home-reading .hero { min-height: 0; }
.home-reading .hero-content { padding-block: 48px 40px; }
.home-reading .hero h1 { font-size: clamp(2.8rem, 6vw, 4.6rem); }
.home-reading .hero-copy { max-width: 58ch; font-size: 1.15rem; }
.home-reading .byline { max-width: 80ch; font-size: .9rem; margin-bottom: 20px; }
.home-reading .section { padding-block: 48px; }
.latest-reading { scroll-margin-top: 95px; }
.latest-reading-grid { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 48px; }
.latest-reading h2 { max-width: 23ch; font-size: clamp(1.8rem, 3.7vw, 2.7rem); line-height: 1.12; }
.latest-reading h2 a, .visual-card h3 a { color: inherit; text-decoration: none; }
.latest-reading h2 a:hover, .visual-card h3 a:hover { color: var(--accent-strong); }
.recent-reading { border-left: 1px solid var(--line); padding-left: 28px; display: grid; align-content: start; gap: 18px; }
.recent-reading > a { display: grid; color: var(--ink); text-decoration: none; }
.recent-reading span { font-size: .875rem; color: var(--muted); }
.recent-reading strong { font-size: 1.05rem; }
.home-reading .atlas-home-grid { display: block; }
.home-reading .atlas-home-copy { max-width: 760px; margin-bottom: 30px; }
.home-reading .atlas-home-copy .review-links { display: none; } /* Status stays visible on each generated card. */
.visual-card-grid, .home-visual-cards { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 24px; }
.visual-card { min-width: 0; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: var(--paper); color: var(--ink); }
.visual-card-image { display: block; background: var(--night); }
.visual-card-image img { display: block; width: 100%; height: auto; aspect-ratio: 16/10; object-fit: contain; }
.visual-card-copy { padding: 22px; }
.visual-card .kicker { color: var(--accent-strong); font-size: .75rem; }
.visual-card h3 { font-size: clamp(1.35rem,2.3vw,1.8rem); line-height: 1.2; margin-bottom: 12px; }
.visual-card p { color: var(--ink-soft); }
.visual-card .atlas-status { display: block; width: fit-content; border-radius: 5px; font-family: var(--sans); font-size: .875rem; padding: 6px 9px; margin-block: 16px; line-height: 1.45; }
.visual-card .card-cta { color: var(--accent-strong); }
.newsletter-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 40px; align-items: start; }
.newsletter-section { background: var(--wash); }
.newsletter-section .form-note { color: var(--ink-soft); }
.newsletter-section .form-note a { color: var(--accent-strong); }
.newsletter-section .signup-form { margin-top: 0; }
.newsletter-section input { background: white; color: var(--ink); border: 1px solid var(--line); }
.newsletter-section input::placeholder { color: var(--muted); }
.content-topics { display: flex; flex-wrap: wrap; gap: 8px; margin-block: 18px; }
.content-topics a { padding: 4px 10px; border: 1px solid var(--line); border-radius: 4px; font-size: .875rem; line-height: 1.5; color: var(--accent-strong); text-decoration: none; background: var(--wash); }
.content-topics a:hover { border-color: var(--accent-strong); }
.atlas-story > .page-title { max-width: 22ch; font-size: clamp(2rem,4.5vw,3.1rem); line-height: 1.12; }
.atlas-subtitle { font-size: 1.15rem; color: var(--ink-soft); margin-block: 12px 20px; }
.atlas-story > .lede { font-size: 1rem; line-height: 1.65; }
.atlas-story .article-provenance { margin-block: 18px; font-size: .875rem; }
.atlas-story .atlas-story-disclosure { margin-block: 18px; padding: 16px; }
.atlas-story .atlas-story-disclosure p { font-size: .875rem; line-height: 1.6; }
.atlas-story .atlas-story-figure { margin-block: 24px 36px; }
.figure-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; padding-block: 12px; font-family: var(--sans); font-size: .875rem; }
.figure-actions button, .viewer-toolbar button { padding: 9px 14px; min-height: 44px; border: 1px solid var(--line); border-radius: 6px; background: var(--paper); color: var(--accent-strong); font: inherit; cursor: pointer; }
.review-record summary { cursor: pointer; font-family: var(--sans); font-size: 1rem; padding-block: 8px; }
.figure-viewer { width: min(1400px,96vw); max-width: 96vw; max-height: 94dvh; padding: 0; border: 1px solid var(--line); border-radius: 12px; background: var(--paper); color: var(--ink); }
.figure-viewer::backdrop { background: rgba(7,16,24,.85); }
.viewer-toolbar { position: sticky; top: 0; z-index: 5; background: var(--paper); padding: 12px 18px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px; border-bottom: 1px solid var(--line); }
.viewer-toolbar strong { margin-right: auto; }
.viewer-scroll { overflow: auto; padding: 18px; max-height: 78dvh; }
.figure-viewer figure { position: static; transform: none; width: 100%; max-width: none; margin: 0; }
.figure-viewer figcaption { max-width: 85ch; padding-block: 16px; font-size: 1rem; line-height: 1.65; }
.figure-viewer figcaption span { display: block; margin-top: 10px; font-size: .875rem; color: var(--ink-soft); }
.figure-viewer .atlas-image-label { font-size: .875rem; }
body.figure-viewer-open { overflow: hidden; }
.reading-progress { position: fixed; inset: 0 0 auto; z-index: 1000; height: 3px; background: transparent; pointer-events: none; }
.reading-progress span { display: block; width: 100%; height: 100%; transform: scaleX(0); transform-origin: left center; background: var(--accent); transition: transform 80ms linear; }
[data-reading-template] > .lede,
[data-reading-template] .ra-detail-head > .lede { max-width: 70ch; }
.reading-toc { margin-block: 28px 36px; }
.reading-toc a[aria-current="location"] { color: var(--ink); font-weight: 700; text-decoration-thickness: 2px; }
.reading-caption { border-top: 1px solid var(--line); padding-top: 14px; }
.reading-sources { padding-top: 8px; border-top: 1px solid var(--line); }
.reading-revision { margin-top: 52px; padding-top: 28px; border-top: 1px solid var(--line); }
.brief-article > h2,
.atlas-story > h2,
.atlas-story > section > h2 { scroll-margin-top: 110px; }
.brief-article .evidence-label { margin-top: -4px; color: var(--ink-soft); font-size: .9rem; line-height: 1.55; }
.brief-article .article-provenance,
.atlas-story .article-provenance { border-bottom: 0; }
.related-reading { clear: both; }
/* Invisible controls must also leave keyboard navigation. */
.back-to-top { visibility: hidden; }
.back-to-top.is-visible { visibility: visible; }
.related-reading { margin-block: 48px; padding-block: 28px; border-top: 1px solid var(--line); }
.related-reading h2 { font-size: 1.4rem; }
.related-reading ul { padding-left: 20px; }
.related-reading li { margin-block: 12px; }
.related-reading .kicker { font-size: .75rem; margin-right: 8px; }
.record-status { padding: 10px 14px; border-left: 3px solid var(--accent); background: var(--wash); font-size: .95rem; }
.evidence-guide { max-width: 850px; }
.evidence-guide > .page-title { font-size: clamp(2rem,4.5vw,3.1rem); line-height: 1.15; }
.evidence-guide section { margin-block: 40px; scroll-margin-top: 110px; }
.evidence-guide h2 { font-size: clamp(1.5rem,3vw,2rem); line-height: 1.25; }
.guide-contents { display: flex; flex-wrap: wrap; gap: 10px 20px; padding: 20px 0; border-block: 1px solid var(--line); margin-block: 28px; font-family: var(--sans); font-size: .95rem; }
.guide-contents strong { flex-basis: 100%; }
.guide-table-scroll { overflow-x: auto; margin-block: 24px; }
.guide-table { width: 100%; border-collapse: collapse; font-family: var(--sans); font-size: 1rem; line-height: 1.6; }
.guide-table caption { text-align: left; color: var(--ink-soft); padding-bottom: 12px; }
.guide-table th, .guide-table td { padding: 16px 12px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); min-width: 10ch; overflow-wrap: anywhere; }
.guide-table thead { background: var(--wash); }
.guide-study-list > article { padding: 24px 0; border-top: 1px solid var(--line); }
.guide-study-list h3 { margin-top: 10px; }
.guide-sources li { margin-bottom: 20px; overflow-wrap: anywhere; scroll-margin-top: 110px; }
.spinal-reading-path article { min-width: 0; }
.spinal-reading-path h3 { line-height: 1.35; }
.index-detail h1 { overflow-wrap: anywhere; }
.index-record h3 a { color: inherit; text-decoration-thickness: 1px; }
.search-controls { display: grid; grid-template-columns: 2fr 1fr 1.3fr auto; gap: 16px; align-items: end; padding: 22px; background: var(--wash); border: 1px solid var(--line); border-radius: 10px; }
.search-controls > div { min-width: 0; }
.search-controls label { display: block; margin-bottom: 6px; font-size: .875rem; font-weight: 650; }
.search-controls input, .search-controls select, .search-controls button { width: 100%; min-width: 0; min-height: 46px; padding: 10px; color: var(--ink); background: var(--paper); border: 1px solid var(--line); border-radius: 5px; font-size: 1rem; }
.search-controls button { cursor: pointer; color: var(--accent-strong); }
.search-results { max-width: 850px; }
.search-result { padding-block: 26px; border-top: 1px solid var(--line); }
.search-result h2 { font-size: 1.4rem; line-height: 1.3; }
.search-result p { margin-bottom: 10px; }
.footer-wrap { grid-template-columns: minmax(0,.75fr) minmax(0,1.5fr); }
.footer-nav { grid-template-columns: repeat(4,minmax(0,1fr)); gap: 22px; }
.footer-group strong { font-size: .75rem; }
.footer-group a { font-size: .875rem; line-height: 1.55; padding-block: 3px; }
@media(max-width:900px) {
 .footer-wrap { grid-template-columns: 1fr; }
 .search-controls { grid-template-columns: 1fr 1fr; }
}
@media(max-width:640px) {
 .home-reading .hero-content { padding-block: 30px; }
 .home-reading .hero h1 { font-size: clamp(2.3rem,10vw,3.5rem); }
 .home-reading .section { padding-block: 32px; }
 .latest-reading-grid, .visual-card-grid, .home-visual-cards, .newsletter-grid { grid-template-columns: 1fr; gap: 24px; }
 .recent-reading { border-left: 0; border-top: 1px solid var(--line); padding: 20px 0 0; }
 .atlas-story > .page-title { font-size: clamp(2rem,8.5vw,2.7rem); }
 .atlas-story-main { padding-top: 30px; }
 .atlas-story > .article-back { margin-bottom: 16px; }
 .footer-nav { grid-template-columns: repeat(2,minmax(0,1fr)); row-gap: 28px; }
 .nav-wrap { flex-wrap: wrap; }
 .nav-links { flex-wrap: wrap; gap: 10px 18px; }
 .search-controls { grid-template-columns: 1fr; padding: 16px; }
 .viewer-scroll { padding: 8px; }
 .reading-toc { margin-block: 22px 30px; }
 .reading-caption { font-size: .9rem; line-height: 1.55; }
}
@media print {
 .figure-actions, .related-reading, .search-controls { display: none; }
}