/* Worked example dossier (/example/). Illustrative, not a completed project: the flag, notice and revision block keep that visible.
   Colours come only from site.css tokens; glass only on the dark hero and results section. */

/* ---------- hero: dossier cover ---------- */
.ex-flag { display: inline-block; margin-bottom: 20px; padding: 6px 12px; border: 1px solid var(--copper-lite); border-radius: var(--r-xs); font: 500 var(--fs-cap)/1.4 var(--f-mono); letter-spacing: .02em; color: var(--copper-lite); }
html[lang="ar"] .ex-flag { font-family: var(--f-ar); font-size: var(--fs-sm); font-weight: 600; }
.ex-hero h1 { max-width: 20ch; font-size: clamp(2rem, 1.4rem + 2.4vw, 3.5rem); }
.page-hero .ex-cover { min-height: 0; align-self: end; }
.ex-tb { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--hair-dark); background: var(--glass-bg-1); box-shadow: var(--glass-hi), var(--glass-shadow); border-radius: var(--r-xs); }
.ex-tb > div { padding: 12px 16px; border-bottom: 1px solid var(--hair-dark); min-width: 0; }
.ex-tb > div:nth-child(odd):not(.ex-tb-w) { border-inline-end: 1px solid var(--hair-dark); }
.ex-tb > div:last-child, .ex-tb > div:nth-last-child(2):not(.ex-tb-w) { border-bottom: 0; }
.ex-tb .ex-tb-w { grid-column: 1 / -1; }
.ex-tb dt { font: 500 var(--fs-2xs)/1.4 var(--f-mono); letter-spacing: .04em; text-transform: uppercase; color: var(--on-dark-3); margin-bottom: 4px; }
html[lang="ar"] .ex-tb dt { font-family: var(--f-ar); text-transform: none; letter-spacing: 0; font-size: var(--fs-xs); }
.ex-tb dd { font-size: var(--fs-small); color: #fff; line-height: 1.45; }
.ex-tb .ex-st { color: var(--copper-lite); font-weight: 600; }

/* ---------- notice ---------- */
.ex-notice { display: grid; grid-template-columns: minmax(0, 12rem) minmax(0, 1fr); gap: 12px 32px; padding: 24px 28px; background: var(--paper-hi); border: 1px solid var(--hair); border-inline-start: 3px solid var(--copper); }
.ex-notice-k, .ex-k { font-size: var(--fs-2xs); letter-spacing: .04em; color: var(--copper-ink); }
.ex-notice-h { font-size: var(--fs-lg); margin-bottom: 8px; }
.ex-notice p:not(.ex-notice-k) { color: var(--ink-2); max-width: 75ch; }
.ex-toc { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); margin-top: 28px; border-top: 1px solid var(--ink); }
.ex-toc a { display: flex; align-items: baseline; gap: 10px; min-height: 52px; padding: 14px 12px 12px 0; font-size: var(--fs-small); font-weight: 500; color: var(--ink-2); border-bottom: 1px solid var(--hair); }
html[dir="rtl"] .ex-toc a { padding: 14px 0 12px 12px; }
.ex-toc a + a { padding-inline-start: 12px; border-inline-start: 1px solid var(--hair); }
.ex-toc a:hover { color: var(--ink); }
.ex-toc b { font-size: var(--fs-2xs); font-weight: 500; color: var(--copper-ink); }

/* ---------- section head ---------- */
.ex-sec { scroll-margin-top: var(--header-h); }
.ex-head { display: grid; gap: 14px; margin-bottom: clamp(32px, 4vw, 56px); max-width: 920px; }
.ex-head h2 { font-size: clamp(1.75rem, 1.3rem + 1.7vw, 2.75rem); max-width: 24ch; }
.ex-no { font-size: var(--fs-sm); color: var(--copper-ink); padding-top: 10px; border-top: 1px solid var(--ink); justify-self: start; min-width: 4rem; }
.section--dark .ex-no { color: var(--copper-lite); border-color: rgba(255, 255, 255, .6); }

/* ---------- 01 brief ---------- */
.ex-grid { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 0 clamp(32px, 5vw, 72px); }
.ex-grid > .ex-head { grid-column: 1 / -1; }
.ex-main { display: grid; gap: 16px; align-content: start; }
.ex-main p { color: var(--ink-2); max-width: 64ch; }
.ex-main .ex-lead { font-size: var(--fs-xl); line-height: 1.5; color: var(--ink); }
.ex-problem { display: grid; gap: 6px; padding: 18px 20px; border: 1px solid var(--hair-strong); background: var(--white); }
.ex-problem b { font: 600 var(--fs-cap)/1.4 var(--f-body); color: var(--copper-ink); }
.ex-side-h { font-size: var(--fs-lg); padding-bottom: 12px; border-bottom: 1px solid var(--ink); }
.ex-params > div { display: grid; gap: 4px; padding: 12px 0; border-bottom: 1px solid var(--hair); }
.ex-params dt { font-size: var(--fs-2xs); letter-spacing: .03em; color: var(--copper-ink); }
.ex-params dd { font-size: var(--fs-small); color: var(--ink-2); line-height: 1.5; }
.ex-src { font-size: var(--fs-cap); color: var(--slate); }
.ex-side .ex-src { margin-top: 8px; }
.ex-side .ex-src a, a.ex-src, .ex-inl { display: inline-flex; align-items: center; min-height: 44px; font-weight: 600; color: var(--copper-ink); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.ex-side .ex-src a:hover, a.ex-src:hover, .ex-inl:hover { color: var(--ink); }

/* ---------- 02 constraints ---------- */
.ex-cons { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0 28px; }
.ex-cons li { display: grid; grid-template-rows: auto auto 1fr auto; gap: 8px; padding: 18px 0 8px; border-top: 1px solid var(--ink); }
.ex-cons h3 { font-size: var(--fs-lg); }
.ex-cons p:not(.ex-k) { font-size: var(--fs-small); color: var(--ink-2); line-height: 1.55; }
.ex-cons a.ex-src { justify-self: start; font-size: var(--fs-cap); }

/* ---------- 03 options ---------- */
.ex-opts th[scope="row"] { font-weight: 600; color: var(--ink); vertical-align: top; text-align: start; }
.ex-opts td { color: var(--ink-2); font-size: var(--fs-small); vertical-align: top; }
.ex-opts td.ex-pick { color: var(--ink); font-weight: 500; }
.ex-opts .ex-inl { font-size: var(--fs-cap); }
@media (max-width: 860px) {
  .ex-opts thead { display: none; }
  .ex-opts tr { display: block; padding: 16px 0; border-bottom: 1px solid var(--hair); }
  .ex-opts th[scope="row"] { display: block; padding: 0 0 8px; border: 0; font-size: var(--fs-base); }
  .ex-opts td { display: block; padding: 6px 0; border: 0; }
  .ex-opts td::before { content: attr(data-h); display: block; font: 600 var(--fs-2xs)/1.4 var(--f-body); color: var(--slate); margin-bottom: 2px; }
}

/* ---------- 04 phasing ---------- */
.ex-strip { margin: 0; }
.ex-scroll { overflow-x: auto; overscroll-behavior-x: contain; }
.ex-scroll:focus-visible, .ex-tscroll:focus-visible { outline: 2px solid var(--focus); outline-offset: -2px; }
.ex-strip-svg, .ex-bars-svg { display: block; width: 100%; min-width: 680px; height: auto; direction: ltr; fill: none; }
.ex-strip-svg { padding: 16px 12px 8px; }
:is(.ex-strip-svg, .ex-bars-svg) text { stroke: none; font: 500 12px var(--f-body); }
:is(.ex-strip-svg, .ex-bars-svg) .ref { font-family: var(--f-mono); font-size: 11px; }
html[lang="ar"] :is(.ex-strip-svg, .ex-bars-svg) text { font-family: var(--f-ar); font-size: 12.5px; }
html[lang="ar"] :is(.ex-strip-svg, .ex-bars-svg) .ref { font-family: var(--f-mono); font-size: 11px; }
html[lang="ar"] :is(.ex-strip-svg, .ex-bars-svg) text.ar { direction: rtl; unicode-bidi: embed; }
.ph-T { fill: var(--paper-2); stroke: var(--hair); stroke-width: 1; }
.ph-W { fill: var(--copper); stroke: var(--copper); stroke-width: 1; }
.ph-X { fill: var(--white); stroke: var(--copper-ink); stroke-width: 1.25; }
.ph-D { fill: var(--ink-2); stroke: var(--ink-2); stroke-width: 1; }
.ex-strip .s-mute { stroke: var(--hair-strong); stroke-width: 1; }
.ex-strip .title-block > span { white-space: normal; }
.ex-links { display: flex; flex-wrap: wrap; gap: 8px 32px; margin-top: 20px; }
.ex-links .arrow-link { min-height: 44px; border-bottom: 0; padding-bottom: 0; text-decoration: underline; text-underline-offset: 4px; text-decoration-thickness: 1px; }
.ex-chill { margin-top: clamp(40px, 5vw, 64px); max-width: 920px; }
.ex-chill h3 { font-size: var(--fs-h3); margin-bottom: 16px; }
.ex-chill-list { border-top: 1px solid var(--ink); }
.ex-chill-list li { display: grid; grid-template-columns: 4.5rem minmax(0, 1fr); gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--hair-strong); color: var(--ink-2); }
.ex-chill-list b { font-size: var(--fs-sm); font-weight: 500; color: var(--copper-ink); padding-top: 2px; }
.ex-chill .note { margin-top: 12px; }

/* ---------- 05 documents ---------- */
.ex-docs { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 24px; }
.ex-docs a { display: grid; gap: 6px; align-content: start; color: var(--ink); font-weight: 500; font-size: var(--fs-small); line-height: 1.4; }
.ex-pg { display: block; margin-bottom: 8px; border: 1px solid var(--hair); background: var(--white); box-shadow: 0 1px 2px rgba(17, 21, 28, .08), 0 10px 24px -14px rgba(17, 21, 28, .35); transition: box-shadow .2s, transform .2s; }
.ex-pg img { display: block; width: 100%; height: auto; }
.ex-docs a:hover .ex-pg { box-shadow: 0 1px 2px rgba(17, 21, 28, .1), 0 16px 32px -14px rgba(17, 21, 28, .45); }
.ex-docs b { font-size: var(--fs-2xs); font-weight: 500; color: var(--copper-ink); }
.ex-docs small { font-size: var(--fs-cap); font-weight: 600; color: var(--copper-ink); text-decoration: underline; text-underline-offset: 3px; }
.ex-reg { margin-top: clamp(40px, 5vw, 64px); max-width: 920px; }
.ex-reg h3 { font-size: var(--fs-lg); padding-bottom: 12px; border-bottom: 1px solid var(--ink); }
.ex-reg li { border-bottom: 1px solid var(--hair); }
.ex-reg li a { display: grid; grid-template-columns: 4.5rem minmax(0, 1fr); gap: 16px; align-items: baseline; min-height: 44px; padding: 12px 0; color: var(--ink-2); font-size: var(--fs-small); }
.ex-reg li a:hover { color: var(--ink); }
.ex-reg li b { font-size: var(--fs-2xs); font-weight: 500; color: var(--copper-ink); }
.ex-reg p { margin-top: 20px; }
.ex-reg .arrow-link { min-height: 44px; }

/* ---------- 06 modelled outputs (dark) ---------- */
.ex-results .lede { max-width: 60ch; }
.ex-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--hair-dark); border: 1px solid var(--hair-dark); }
.ex-stats > div { display: grid; gap: 8px; align-content: start; padding: 20px 22px; background: var(--midnight); }
.ex-stats dt { font-size: var(--fs-cap); color: var(--on-dark-2); line-height: 1.4; }
.ex-stats dd { font-size: var(--fs-small); color: var(--on-dark-2); }
.ex-stats dd b { font: 600 clamp(1.75rem, 1.3rem + 1.4vw, 2.5rem)/1.1 var(--f-display); color: #fff; }
html[lang="ar"] .ex-stats dd b { font-family: var(--f-display); }
.ex-stats .ex-m { justify-self: start; padding: 2px 8px; border: 1px dashed var(--copper-lite); border-radius: var(--r-xs); font-size: var(--fs-2xs); letter-spacing: .04em; color: var(--copper-lite); }
.ex-star { margin-top: 16px; max-width: 80ch; }
.ex-bars { margin: clamp(40px, 5vw, 56px) 0 0; padding: 20px 20px 12px; border: 1px solid var(--hair-dark); background: var(--glass-bg-1); box-shadow: var(--glass-hi); border-radius: var(--r-xs); }
.ex-bars-h { font-weight: 600; color: #fff; margin-bottom: 10px; }
.ex-key { display: flex; flex-wrap: wrap; gap: 6px 20px; margin-bottom: 8px; font-size: var(--fs-cap); color: var(--on-dark-2); }
.ex-key li { display: inline-flex; align-items: center; gap: 8px; }
.ex-key i { width: 14px; height: 10px; border-radius: 2px; }
.ex-key .k-sell { background: rgba(255, 255, 255, .3); }
.ex-key .k-off { background: var(--copper-lite); }
.b-grid { stroke: rgba(255, 255, 255, .12); stroke-width: 1; }
.b-ax { fill: var(--on-dark-3); }
.b-lab { fill: #fff; font-weight: 600 !important; }
.b-sell { fill: rgba(255, 255, 255, .3); }
.b-off { fill: var(--copper-lite); }
.b-hit { fill: transparent; }
.b-col:hover .b-sell { fill: rgba(255, 255, 255, .45); }
.b-col:hover .b-off { fill: #d9a56c; }
.ex-table { margin-top: 20px; border-top: 1px solid var(--hair-dark); }
.ex-table summary { display: flex; align-items: center; min-height: 48px; font-weight: 600; color: #fff; cursor: pointer; }
.ex-table summary:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.ex-tscroll { overflow-x: auto; }
.ex-wk { min-width: 640px; font-size: var(--fs-small); }
.ex-wk th, .ex-wk td { padding: 8px 10px; text-align: start; }
.ex-wk .num { text-align: end; }
.ex-wk tbody th { color: #fff; font-weight: 500; }
.ex-wk td { color: var(--on-dark-2); }
.ex-wk tfoot th, .ex-wk tfoot td { color: #fff; font-weight: 600; border-top: 1px solid rgba(255, 255, 255, .6); }
.ex-sens { margin-top: clamp(40px, 5vw, 56px); max-width: 920px; }
.ex-sens h3 { font-size: var(--fs-lg); padding-bottom: 12px; border-bottom: 1px solid rgba(255, 255, 255, .6); }
.ex-sens dl > div { display: grid; grid-template-columns: minmax(0, 14rem) minmax(0, 1fr); gap: 6px 28px; padding: 14px 0; border-bottom: 1px solid var(--hair-dark); }
.ex-sens dt { font-weight: 600; color: #fff; }
.ex-sens dd { color: var(--on-dark-2); }

/* ---------- publishing note + revision ---------- */
.ex-future { display: grid; gap: 14px; padding: clamp(24px, 3vw, 40px); background: var(--paper-hi); border: 1px solid var(--hair); border-inline-start: 3px solid var(--copper); }
.ex-future-h { font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2.25rem); max-width: 26ch; }
.ex-future p:not(.ex-k) { color: var(--ink-2); max-width: 70ch; }
.ex-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.ex-rev { margin-top: 24px; grid-template-columns: auto 1fr auto; border: 1px solid var(--hair); }
.ex-rev > span { white-space: normal; }

/* ---------- responsive ---------- */
@media (max-width: 1080px) {
  .ex-cons { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 24px; }
  .ex-docs { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .ex-toc { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .ex-toc a:nth-child(4) { border-inline-start: 0; padding-inline-start: 0; }
}
@media (max-width: 860px) {
  .ex-grid { grid-template-columns: minmax(0, 1fr); }
  .ex-side { margin-top: 32px; }
  .ex-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ex-notice { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 600px) {
  .ex-cons { grid-template-columns: minmax(0, 1fr); }
  .ex-docs { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px 16px; }
  .ex-toc { grid-template-columns: minmax(0, 1fr); }
  .ex-toc a, html[dir="rtl"] .ex-toc a, .ex-toc a + a { padding: 12px 0; border-inline-start: 0; }
  .ex-stats { grid-template-columns: minmax(0, 1fr); }
  .ex-tb { grid-template-columns: minmax(0, 1fr); }
  .ex-tb > div:nth-child(odd):not(.ex-tb-w) { border-inline-end: 0; }
  .ex-tb > div:nth-last-child(2):not(.ex-tb-w) { border-bottom: 1px solid var(--hair-dark); }
  .ex-notice { padding: 18px 16px; }
  .ex-sens dl > div { grid-template-columns: minmax(0, 1fr); }
  .ex-rev { grid-template-columns: 1fr 1fr; }
  .ex-rev > span:nth-child(2) { grid-column: 1 / -1; grid-row: 2; border-inline-start: 0; border-top: 1px solid var(--hair); }
  .ex-bars { padding: 16px 12px 8px; }
}
@media (prefers-reduced-motion: reduce) { .ex-pg { transition: none; } }
.ex-wk { width: 100%; border-collapse: collapse; }
.ex-wk thead th { font: 600 var(--fs-cap)/1.4 var(--f-body); color: var(--on-dark-3); border-bottom: 1px solid rgba(255, 255, 255, .6); vertical-align: bottom; }
.ex-wk tbody :is(th, td) { border-bottom: 1px solid var(--hair-dark); }
.ex-opts tbody th[scope="row"] { font: 600 var(--fs-small)/1.45 var(--f-body); color: var(--ink); padding-top: 18px; vertical-align: top; border-bottom: 1px solid var(--hair); }
.ex-opts .ex-inl { display: inline; min-height: 0; }
.ex-table summary { list-style: none; gap: 12px; }
.ex-table summary::-webkit-details-marker { display: none; }
.ex-table summary::after { content: "+"; font: 400 1.25rem/1 var(--f-body); color: var(--copper-lite); }
.ex-table[open] summary::after { content: "\2212"; }
.page-example bdi.lat { white-space: nowrap; }
/* the drawings are LTR (week 1 on the left), so their scroll starts at the left in Arabic too */
.ex-scroll { direction: ltr; }
/* the cover sits at the top of the hero row, so late font swaps in the heading never move it */
.page-hero .ex-cover { align-self: start; margin-top: 4px; }
.page-example :is(#options, #phasing, #handover, #results) { content-visibility: auto; contain-intrinsic-size: auto 1200px; }
.ex-future > * { min-width: 0; }
.ex-actions .btn { white-space: normal; max-width: 100%; text-align: start; padding-block: 10px; }