/* Use-cases page additions: request-to-result showcase, library toolbar, staff teams.
   Quiet Boardroom rules: square corners, hairlines, one night panel per object. */

/* Request to result */
.rr-list { display: grid; gap: clamp(40px, 6vw, 72px); max-width: var(--max); margin-inline: auto; padding-inline: var(--gutter); }
.rr-item { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--col-gap); align-items: start; padding-block-start: 32px; border-block-start: 1px solid var(--line); }
.rr-num { color: var(--gold-text); font-size: 0.9rem; font-weight: 500; }
.rr-copy h3 { margin: 8px 0 18px; font-size: clamp(1.4rem, 2.2vw, 1.9rem); font-weight: 400; }
.rr-label { margin: 0 0 4px; color: var(--muted); font-size: 0.85rem; }
.rr-copy p:not(.rr-label) { margin: 0 0 20px; color: var(--ink-soft); line-height: 1.7; }
.rr-result { margin: 14px 0 0; color: var(--ink-soft); line-height: 1.65; }
.rr-result span { display: block; margin-block-end: 2px; color: var(--muted); font-size: 0.85rem; }
.rr-visual .hp-clip { margin-block-end: 0; }
.rr-prompt { margin-block-start: 16px; padding: 18px 20px; border: 1px solid var(--line); background: var(--paper); }
.rr-prompt-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-block-end: 10px; }
.rr-prompt-head span { color: var(--muted); font-size: 0.85rem; font-weight: 500; }
.rr-copy-btn { min-height: 44px; padding: 0 16px; border: 1px solid var(--ink); background: transparent; color: var(--ink); font: inherit; font-size: 0.9rem; cursor: pointer; transition: background-color var(--t-fast), color var(--t-fast); }
.rr-copy-btn:hover, .rr-copy-btn.is-done { background: var(--ink); color: var(--paper); }
.rr-prompt-text { margin: 0; line-height: 1.7; }
.rr-prompt-note { margin: 10px 0 0; color: var(--muted); font-size: 0.8rem; }

/* Library toolbar: only with JavaScript */
.lib-toolbar { display: none; }
.lib-toolbar.is-live { display: grid; gap: 16px; max-width: var(--max); margin: 0 auto 28px; padding-inline: var(--gutter); }
.lib-search { display: flex; align-items: center; gap: 12px; border-block-end: 1px solid var(--line-strong); }
.lib-search input { flex: 1; min-height: 48px; border: 0; background: transparent; color: var(--ink); font: inherit; font-size: 1.05rem; }
.lib-search input:focus { outline: none; }
.lib-search:focus-within { border-block-end-color: var(--gold); }
.lib-clear { min-height: 44px; padding: 0 12px; border: 0; background: transparent; color: var(--teal); font: inherit; cursor: pointer; }
.lib-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.lib-chip { min-height: 44px; padding: 0 14px; border: 1px solid var(--line-strong); background: transparent; color: var(--ink); font: inherit; font-size: 0.9rem; cursor: pointer; transition: background-color var(--t-fast), color var(--t-fast), border-color var(--t-fast); }
.lib-chip:hover { border-color: var(--gold); }
.lib-chip[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.lib-status { margin: 0; color: var(--muted); font-size: 0.9rem; min-height: 1.4em; }
.field-category[hidden], .field-case-grid > article[hidden] { display: none; }

@media (max-width: 900px) {
  .rr-item { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .rr-prompt-head { flex-direction: column; align-items: flex-start; }
  .rr-copy-btn { min-height: 44px; }
  .lib-chip { min-height: 44px; }
}

/* Existing photo frames drift a few pixels past the screen edge on phones; clip it (no scroll container, sticky unaffected). */
main#main { overflow-x: clip; }

.lib-search input { min-width: 0; }
.lib-search:focus-within { outline: 2px solid var(--gold-text); outline-offset: 4px; }


/* Contents bar: stays under the header while the page scrolls; scrolls sideways on phones */
.uc-toc { position: sticky; top: var(--header-height); z-index: 30; background: var(--paper); border-block-end: 1px solid var(--line); }
.uc-toc-inner { display: flex; align-items: center; gap: 16px; max-width: var(--max); margin-inline: auto; padding: 10px var(--gutter); }
.uc-toc-title { flex: 0 0 auto; color: var(--gold-text); font-size: 0.95rem; font-weight: 500; }
.uc-toc-links { display: flex; gap: 8px; min-width: 0; overflow-x: auto; scrollbar-width: none; padding-block: 2px; }
.uc-toc-links::-webkit-scrollbar { display: none; }
.uc-toc-links a { flex: 0 0 auto; display: inline-flex; align-items: center; min-height: 44px; padding: 0 16px; border: 1px solid var(--line-strong); border-radius: 999px; background: var(--paper); color: var(--ink); font-size: 0.92rem; white-space: nowrap; transition: background-color var(--t-fast), color var(--t-fast), border-color var(--t-fast); }
.uc-toc-links a:hover { border-color: var(--gold); }
.uc-toc-links a[aria-current="true"] { border-color: var(--ink); background: var(--ink); color: var(--paper); }
.uc-toc-links a:focus-visible { outline: 2px solid var(--gold-text); outline-offset: 2px; }
main#main :is(#request-to-result, #case-library, .field-category, #more-examples, #operating-layers) { scroll-margin-block-start: calc(var(--header-height) + 84px); }
@media (max-width: 700px) { .uc-toc-title { display: none; } .uc-toc-inner { padding-block: 8px; } }

/* Native semantic disclosures use the site's hairline treatment. */
.uc-case { border-block-start: 1px solid var(--line); }
.uc-case > summary { position: relative; padding: 20px 0; padding-inline-end: 48px; cursor: pointer; list-style: none; }
.uc-case > summary::-webkit-details-marker { display: none; }
.uc-case > summary::after { content: "+"; position: absolute; inset-inline-end: 4px; inset-block-start: 22px; font-size: 1.5rem; color: var(--gold-text); }
.uc-case[open] > summary::after { content: "−"; }
.uc-case:not([open]) > summary p { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.uc-case > summary:focus-visible, .rr-prompt-disclosure > summary:focus-visible, .lib-featured-results a:focus-visible { outline: 2px solid var(--gold-text); outline-offset: 3px; }
.rr-prompt-disclosure { margin-block-start: 14px; border-block-start: 1px solid var(--line); }
.rr-prompt-disclosure > summary { min-height: 44px; padding-block: 12px; cursor: pointer; color: var(--teal); }
.rr-shared-note { max-width: var(--max); padding-inline: var(--gutter); margin: 0 auto 28px; font-size: .9rem; }
.lib-featured-results { margin: 0; padding-inline-start: 24px; }
.lib-featured-results[hidden], .field-case-grid > article[hidden] { display: none !important; }
.lib-featured-results a { display: inline-flex; align-items: center; min-height: 44px; text-decoration: underline; }
.uc-toc-links a { border-radius: 0; }