/* Qigong (movement.davidstitt.net/<locale>/qigong/) - layout and type
   from David's prototype (heirloom/qigong/styles.css), adapted
   2026-10-15 (design/movement.md):
   - fonts self-hosted (tokens.css): DM Sans for text, Libre Baskerville
     for headings and the About text (instead of Georgia);
   - colours are the page's :root tokens (qigong_base.html), with the
     greys darkened to pass WCAG AA;
   - the smallest text raised from 10-12px to at least 0.8125rem (13px);
   - the mobile category menu is a <details> (no script);
   - sizes in rem. */

:root {
  --sans: "DM Sans", system-ui, sans-serif;
  --serif: "Libre Baskerville", Georgia, serif;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 1.5rem;
}

body {
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.65;
}

a {
  color: inherit;
}

.skip {
  position: absolute;
  top: -6rem;
  left: 0.75rem;
  z-index: 20;
  padding: 0.5rem 0.75rem;
  background: var(--card);
  color: var(--text);
}

.skip:focus {
  top: 0.75rem;
}

.eyebrow,
.nav-label {
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

/* --- Layout and sidebar ---------------------------------------------------- */

.layout {
  display: grid;
  grid-template-columns: 16.25rem minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  align-self: start;
  display: flex;
  flex-direction: column;
  height: 100vh;
  padding: 2.2rem 1.4rem 1.6rem;
  overflow-y: auto;
  background: var(--surface);
  border-right: 1px solid var(--line);
}

.side-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font: 700 1.2rem/1.25 var(--serif);
  letter-spacing: -0.03em;
  text-decoration: none;
}

.languages {
  font-size: 0.8125rem;
}

.languages a {
  color: var(--muted);
}

.languages a[aria-current="page"] {
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
}

.sidebar-note {
  margin: 0.7rem 0 2.6rem 2.8rem;
  font-size: 0.8125rem;
  color: var(--muted);
}

.categories ul {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  margin: 0.75rem 0 0;
  padding: 0;
  list-style: none;
}

.categories .nav-label {
  margin-left: 0.65rem;
}

.categories a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 0.7rem;
  border-radius: 5px;
  font-size: 0.9375rem;
  text-decoration: none;
}

.categories a:hover,
.categories a:focus-visible {
  background: var(--soft);
}

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

.sidebar-foot {
  margin: auto 0 0 0.65rem;
  padding-top: 1.5rem;
  font: italic 0.875rem var(--serif);
  color: var(--muted);
}

main {
  min-width: 0;
}

.content {
  max-width: 70rem;
  margin: 0 auto;
  padding: 0 3.1rem;
  /* Title column for .fit-title (tokens.css): the hero's text column. */
  --title-col: calc(min(100vw - 16.25rem, 70rem) * 0.5);
}

/* --- Hero ------------------------------------------------------------------------ */

.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 1.5rem;
  align-items: center;
  min-height: 26rem;
  padding: 4rem 0 3.75rem;
  border-bottom: 1px solid var(--line);
}

/* Page titles follow the shared .fit-title rule (CLAUDE.md), with the
   prototype's light serif look. */
.hero .fit-title,
.page-head .fit-title {
  margin: 0.9rem 0 1.4rem;
  font-family: var(--serif);
  font-size: clamp(2rem, calc(var(--title-col) / var(--title-em)), 4.4rem);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.05em;
}

.lead {
  max-width: 28rem;
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--muted);
}

.primary-link {
  display: inline-flex;
  gap: 1.4rem;
  align-items: center;
  margin-top: 1rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--accent);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--accent-hover);
  text-decoration: none;
}

.hero-art {
  width: 100%;
  height: auto;
  max-height: 20.5rem;
  object-fit: contain;
  mix-blend-mode: multiply;
  opacity: 0.8;
}

/* --- Category menu (narrow screens), counts, note ------------------------------- */

.mobile-jump {
  display: none;
}

.intro-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.75rem;
  margin: 0;
  padding: 1.2rem 0 0.95rem;
  border-bottom: 1px solid var(--line);
  font-size: 0.875rem;
  color: var(--muted);
}

.note {
  margin: 1.5rem 0 0;
  padding: 0.8rem 1rem;
  border-left: 3px solid var(--accent);
  background: var(--card);
  font-size: 0.875rem;
  color: var(--muted);
}

/* --- Category sections and set lists ---------------------------------------------- */

.set-section {
  padding: 3.5rem 0 0.9rem;
  scroll-margin-top: 1.1rem;
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.75rem;
  min-height: 9rem;
  margin-bottom: 1.1rem;
}

.section-head h2,
.about-section h2 {
  margin: 0.6rem 0 0.4rem;
  font-family: var(--serif);
  font-size: clamp(1.95rem, 3.2vw, 2.75rem);
  font-weight: 400;
  line-height: 1.22;
  letter-spacing: -0.05em;
}

.section-head p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--muted);
}

.section-image {
  flex: none;
  width: 12.8rem;
  height: 8.6rem;
  margin: 0;
  overflow: hidden;
  border-radius: 3px;
  background: var(--card);
}

.section-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* The Daoyin tapestry is a wide scroll: show it whole. */
.section-image--ancient {
  width: 16rem;
}

.section-image--ancient img {
  object-fit: contain;
}

.set-list {
  border-top: 1px solid var(--line);
}

.set-link,
.reference-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  text-decoration: none;
}

.set-link {
  padding: 0.95rem 0.5rem 0.95rem 0;
  border-bottom: 1px solid var(--line);
}

a.set-link:hover,
a.set-link:focus-visible {
  padding-left: 0.6rem;
  background: var(--soft);
}

.entry-copy {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
}

.entry-copy strong {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.35;
}

.entry-desc {
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--muted);
}

.entry-go {
  flex: none;
  font-size: 0.8125rem;
  color: var(--accent);
  white-space: nowrap;
}

.pending .entry-go {
  font-style: italic;
  color: var(--muted);
}

.references {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.6rem;
}

.reference-link {
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--card);
}

a.reference-link:hover,
a.reference-link:focus-visible {
  border-color: var(--accent);
  background: var(--soft);
}

/* --- About ---------------------------------------------------------------------------- */

.about-section {
  margin-top: 4.4rem;
  padding: 4.25rem 0 2.5rem;
  border-top: 1px solid var(--line);
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(11rem, 0.6fr);
  gap: 2.4rem;
  align-items: start;
}

.about-copy {
  font-family: var(--serif);
  font-size: 1rem;
  line-height: 1.8;
}

.about-copy p:first-child {
  margin-top: 0;
}

.about-grid figure {
  margin: 0;
}

.about-grid img {
  width: 100%;
  height: auto;
  border-radius: 3px;
}

.about-grid figcaption {
  margin-top: 0.4rem;
  font-size: 0.8125rem;
  color: var(--muted);
}

footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem 1.25rem;
  padding: 1.6rem 0 3.1rem;
  border-top: 1px solid var(--line);
  font-size: 0.875rem;
  color: var(--muted);
}

footer a {
  color: var(--accent);
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

/* --- Set and reference pages (qigong_page.html) ------------------------------------- */

.page-head {
  padding: 3rem 0 1.5rem;
  border-bottom: 1px solid var(--line);
  /* The title has the whole column here, not half of it. */
  --title-col: calc(min(100vw - 16.25rem, 70rem) - 6.2rem);
}

.crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--muted);
}

.crumbs a {
  color: var(--accent);
  text-decoration: none;
}

.crumbs a:hover {
  text-decoration: underline;
}

.page-head .lead {
  max-width: 40rem;
  margin: 0;
}

.prose {
  max-width: 44rem;
  padding: 1rem 0 2.5rem;
  font-size: 1.0625rem;
  line-height: 1.7;
}

.prose h2 {
  margin: 2.2rem 0 0.6rem;
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1.3;
}

.prose h3 {
  margin: 1.6rem 0 0.4rem;
  font-size: 1.0625rem;
  font-weight: 700;
}

.prose ul,
.prose ol {
  padding-left: 1.4rem;
}

.prose li {
  margin: 0.25rem 0;
}

.prose li > ul,
.prose li > ol {
  margin: 0.25rem 0 0.5rem;
}

.prose a {
  color: var(--accent);
  overflow-wrap: anywhere;
}

.prose img {
  display: block;
  max-width: min(100%, 22rem);
  height: auto;
  margin: 1.5rem 0;
}

/* Sizes set in the Markdown with {: .small } or {: .wide } (attr_list). */
.prose img.small {
  max-width: min(100%, 9rem);
  margin: 0.75rem 0;
}

.prose img.wide {
  max-width: 100%;
}

.prose blockquote {
  margin: 1rem 0;
  padding-left: 1rem;
  border-left: 3px solid var(--line);
  color: var(--muted);
}

.print-source {
  display: none;
}

.pager {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  padding: 1.5rem 0 2rem;
  border-top: 1px solid var(--line);
  font-size: 0.9375rem;
}

.pager a {
  color: var(--accent);
  text-decoration: none;
}

.pager a:hover {
  text-decoration: underline;
}

.pager-next {
  margin-left: auto;
  text-align: right;
}

/* --- Narrower screens ------------------------------------------------------------------ */

@media (max-width: 60rem) {
  .layout {
    grid-template-columns: 13rem minmax(0, 1fr);
  }

  .sidebar {
    padding: 1.9rem 0.95rem;
  }

  .content {
    padding: 0 1.75rem;
    --title-col: calc((100vw - 13rem) * 0.5);
  }

  .page-head {
    --title-col: calc(100vw - 13rem - 3.5rem);
  }

  .hero {
    min-height: 20rem;
  }

  .section-image {
    width: 9.7rem;
    height: 7rem;
  }

  .section-image--ancient {
    width: 11.25rem;
  }
}

@media (max-width: 44rem) {
  .layout {
    display: block;
  }

  .sidebar {
    position: static;
    height: auto;
    padding: 1.1rem 1.25rem;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .brand {
    font-size: 1.1rem;
  }

  .sidebar-note,
  .categories,
  .sidebar-foot {
    display: none;
  }

  .content {
    padding: 0 1.2rem;
    --title-col: calc(100vw - 2.4rem - 7rem);
  }

  .page-head {
    padding-top: 2rem;
    --title-col: calc(100vw - 2.4rem);
  }

  .prose {
    font-size: 1rem;
  }

  .hero {
    grid-template-columns: 1fr 6.25rem;
    gap: 0.5rem;
    min-height: 0;
    padding: 2.6rem 0 2.2rem;
  }

  .lead {
    font-size: 0.9375rem;
  }

  .hero-art {
    max-height: 9.7rem;
    opacity: 0.65;
  }

  .mobile-jump {
    display: block;
    padding: 0.9rem 0;
    border-bottom: 1px solid var(--line);
  }

  .mobile-jump summary {
    cursor: pointer;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--accent-hover);
  }

  .mobile-jump ul {
    margin: 0.6rem 0 0;
    padding: 0;
    list-style: none;
  }

  .mobile-jump a {
    display: block;
    padding: 0.45rem 0;
    text-decoration: none;
  }

  .set-section {
    padding-top: 2.3rem;
  }

  .section-head {
    gap: 0.75rem;
    min-height: 6.5rem;
  }

  .section-image,
  .section-image--ancient {
    width: 6.6rem;
    height: 6rem;
  }

  .set-link {
    padding: 0.8rem 0;
  }

  .references,
  .about-grid {
    grid-template-columns: 1fr;
  }

  .about-grid figure {
    max-width: 16rem;
  }

  .about-section {
    margin-top: 3rem;
    padding-top: 2.7rem;
  }
}

@media (max-width: 24.5rem) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero-art {
    display: none;
  }

  .content {
    --title-col: calc(100vw - 2.4rem);
  }
}

/* --- Print: a set page becomes a clean handout (the pages replace the
   prototype's PDFs - design/movement.md). Only the title, summary,
   note, the set itself and where it came from. -------------------------------------- */

@media print {
  @page {
    margin: 1.6cm 1.8cm;
  }

  body {
    background: #fff;
    color: #000;
    font-size: 11pt;
  }

  .skip,
  .sidebar,
  .crumbs,
  .pager,
  footer {
    display: none;
  }

  .layout {
    display: block;
  }

  .content {
    max-width: none;
    padding: 0;
  }

  .page-head {
    padding: 0 0 0.6rem;
  }

  .page-head .fit-title {
    margin: 0 0 0.4rem;
    font-size: 22pt;
  }

  .note {
    margin: 0.6rem 0 0;
    padding: 0.3rem 0.6rem;
    font-size: 9pt;
  }

  .prose {
    max-width: none;
    padding: 0.4rem 0 0;
    font-size: 11pt;
    line-height: 1.45;
  }

  .prose h2 {
    margin-top: 1.1rem;
    font-size: 14pt;
    break-after: avoid;
  }

  .prose li {
    break-inside: avoid;
  }

  .prose a {
    color: #000;
  }

  .prose img {
    max-width: 6cm;
  }

  .prose img.small {
    max-width: 3cm;
  }

  .prose img.wide {
    max-width: 100%;
  }

  .print-source {
    display: block;
    margin-top: 1rem;
    font-size: 8.5pt;
    color: #444;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}