/* SAGE app screens: the shared page layout on the SAGE design system (roadmap APP-15).
   Every colour, type style and component comes from /_ds/tokens.css and /_ds/bundle.css; this file only lays the
   pages out, so all screens look and behave the same. Load it after bundle.css. Page-specific rules stay in each page. */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { min-height: 100vh; }
[hidden] { display: none !important; }
p { margin: 0; }

/* skip link, page frame */
.skip { position: absolute; left: var(--space-4); top: -100px; z-index: 30; }
.skip:focus { top: var(--space-2); }
.wrap { max-width: var(--container); margin: 0 auto; padding: 0 var(--space-4); }
@media (min-width: 640px) { .wrap { padding: 0 var(--space-6); } }
main { padding: var(--space-8) 0 var(--space-16); }
main:focus { outline: none; }
.loading { color: var(--ink-subtle); }

/* nav extras: who is signed in, at the top of the menu panel */
.sage-nav__panel .nav-who { padding: var(--space-2) var(--space-4) var(--space-3); margin-bottom: var(--space-1); border-bottom: 1px solid var(--line); color: var(--ink-subtle); overflow-wrap: anywhere; }
.sage-nav__panel .nav-who b { color: var(--ink-muted); font-weight: 500; }
.sage-nav__panel .nav-theme { margin-top: var(--space-1); padding: var(--space-1) var(--space-4); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin-bottom: var(--space-1); }
.sage-nav__panel .nav-theme .sage-check { min-height: var(--control-height); align-items: center; padding: var(--space-2) 0; }
.sage-nav__panel .nav-theme .sage-check__input { top: 50%; margin-top: -10px; }

/* page head: eyebrow, title, lead or badges. Headings step down one level below 640px (brand book). */
.page-head { display: grid; gap: var(--space-2); margin-bottom: var(--space-8); }
.page-head h1 { margin: 0; overflow-wrap: anywhere; }
.page-head .eyebrow { color: var(--ink-muted); }
.page-head .lead { color: var(--ink-muted); max-width: var(--measure); }
@media (max-width: 639px) {
  .page-head h1 { font-size: 30px; line-height: 38px; font-weight: 600; letter-spacing: -0.01em; }
  .page-head .lead { font-size: 16px; line-height: 26px; }
  .section > h2.h2 { font-size: 22px; line-height: 30px; letter-spacing: -0.005em; }
}
.back { display: inline-flex; align-items: center; gap: var(--space-1); margin-bottom: var(--space-4); color: var(--ink-muted); text-decoration: none; min-height: var(--control-height-sm); }
.back:hover { color: var(--ink); }
.badges { display: flex; flex-wrap: wrap; gap: var(--space-2); }

/* stat tiles, sections, card grids */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--space-4); margin-bottom: var(--space-12); }
.stats--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 899px) { .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 639px) { .stats .sage-stat { padding: var(--space-4); } .stats--3 .sage-stat:last-child { grid-column: 1 / -1; } }
.section { margin-bottom: var(--space-12); }
.section > h2 { margin: 0 0 var(--space-4); }
.section-note { margin: calc(-1 * var(--space-2)) 0 var(--space-4); color: var(--ink-muted); max-width: var(--measure); }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: var(--space-6); }
@media (max-width: 639px) { .cards { grid-template-columns: 1fr; gap: var(--space-4); } }
.sage-card .code { overflow-wrap: anywhere; color: var(--ink-muted); }
.sage-card__title { overflow-wrap: anywhere; }
.sage-card__foot { flex-wrap: wrap; }
/* folded sections: a drawn chevron (as in Select) that turns when open */
details.older > summary, details.more > summary { list-style: none; cursor: pointer; display: flex; align-items: center; gap: var(--space-3); }
details.older > summary::-webkit-details-marker, details.more > summary::-webkit-details-marker { display: none; }
details.older > summary::after, details.more > summary::after { content: ""; flex: none; width: 7px; height: 7px; margin: 0 var(--space-1) 3px; border: solid var(--ink-muted); border-width: 0 2px 2px 0; transform: rotate(45deg); transition: transform 160ms ease-out; }
details.older[open] > summary::after, details.more[open] > summary::after { transform: rotate(-135deg); margin-bottom: -3px; }
details.more > summary::after { margin-left: auto; }
@media (prefers-reduced-motion: reduce) { details.older > summary::after, details.more > summary::after { transition: none; } }
details.older > summary { min-height: var(--control-height); margin-bottom: var(--space-4); color: var(--ink); }

/* panels and facts */
.panel { padding: var(--space-6); border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface); box-shadow: var(--shadow-sm); }
@media (max-width: 639px) { .panel { padding: var(--space-4); } }
.panel > h2 { margin: 0 0 var(--space-4); }
.panel-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--space-3); margin-bottom: var(--space-2); }
.panel-head > h2 { margin: 0; }
.facts { display: grid; gap: var(--space-4); margin: 0; }
.facts div { display: grid; gap: 2px; }
.facts dt { color: var(--ink-subtle); }
.facts dd { margin: 0; color: var(--ink); overflow-wrap: anywhere; }
.facts .quote { color: var(--ink-muted); }
.notices { display: grid; gap: var(--space-3); }
.notices:empty { display: none; }
.sage-notice ul, .sage-notice ol { margin: var(--space-1) 0 0; padding-left: 1.2em; color: var(--ink-muted); }
.row { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-3); }

/* text written by people or SAGE (drafts, approved text): Plex Sans to read, Sora for its headings */
.prose { max-width: var(--measure); color: var(--ink); overflow-wrap: anywhere; }
.prose > :first-child { margin-top: 0; }
.prose > :last-child { margin-bottom: 0; }
.prose h1 { font-family: var(--font-display); font-size: 30px; line-height: 38px; font-weight: 600; letter-spacing: -0.01em; margin: 0 0 var(--space-4); }
.prose h2 { font-family: var(--font-display); font-size: 22px; line-height: 30px; font-weight: 600; margin: var(--space-8) 0 var(--space-3); }
.prose h3, .prose h4 { font-family: var(--font-sans); font-size: 16px; line-height: 26px; font-weight: 600; margin: var(--space-6) 0 var(--space-2); }
.prose p, .prose ul, .prose ol { margin: 0 0 var(--space-4); }
.prose li { margin: var(--space-1) 0; }
.prose blockquote { margin: 0 0 var(--space-4); padding: 0 0 0 var(--space-4); border-left: 2px solid var(--line-strong); color: var(--ink-muted); }
.prose code { font-family: var(--font-mono); font-size: 14px; background: var(--surface-sunken); border-radius: var(--radius-sm); padding: 1px 4px; }
.prose pre { background: var(--surface-sunken); border-radius: var(--radius-md); padding: var(--space-4); overflow-x: auto; }
.prose pre code { background: none; padding: 0; }
.prose table { display: block; overflow-x: auto; border-collapse: collapse; width: 100%; margin: 0 0 var(--space-4); font-size: 14px; line-height: 22px; }
.prose th, .prose td { border-bottom: 1px solid var(--line); padding: var(--space-2) var(--space-3); text-align: left; vertical-align: top; }
.prose th { background: var(--surface-sunken); color: var(--ink-muted); font-weight: 500; }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: var(--space-6) 0; }
.prose .img-note { color: var(--ink-subtle); }

/* folded extras inside a panel */
details.more { border-top: 1px solid var(--line); padding-top: var(--space-4); }
details.more + details.more { margin-top: var(--space-4); }
details.more > summary { color: var(--ink); min-height: var(--control-height-sm); }
details.more > .more__body { margin-top: var(--space-2); color: var(--ink-muted); }