/* Articles : lecture longue, repères de métier, contenu préservé. */
.hdr-article-page .hdr-kicker,.hdre-meta,.hdre-update { font: 400 .6875rem/1.6 ui-monospace,Consolas,monospace; letter-spacing: .035em; }
.hdr-article-page .hdr-kicker::before { content: ''; display: inline-block; width: 24px; height: 1px; margin-right: 12px; vertical-align: middle; background: currentColor; }
.hdr-article-page .hdr-breadcrumb { gap: 10px; font: 400 .75rem/1.6 ui-monospace,Consolas,monospace; }
.hdr-article-page .hdr-breadcrumb::before { content: ''; width: 8px; height: 8px; flex: 0 0 8px; background: var(--hdr-blue); margin-right: 4px; }
.hdr-article-page .hdr-breadcrumb a { min-height: 36px; }
.hdr-article-page .hdr-breadcrumb [aria-hidden] { color: var(--hdr-blue); }
.hdre-opening { padding-block: 24px 40px; max-width: 1140px; }
.hdr-article-page .hdre-opening h1 { font-size: clamp(2.5rem,4.2vw,4.5rem); margin-bottom: 28px; }
.hdre-meta { display: flex; gap: 20px; flex-wrap: wrap; color: var(--hdr-muted); margin-bottom: 24px; }
.hdre-meta > span { color: var(--hdr-blue); }
.hdre-intro { max-width: 900px; font-size: 1.0625rem; color: var(--hdr-muted); }
.hdre-intro p { margin-bottom: 18px; }
.hdre-intro p:first-child { font-size: 1.25rem; color: var(--hdr-ink); }
.hdre-update { color: var(--hdr-muted); margin-top: 24px !important; }
.hdre-hero-photo img { width: 100%; max-height: 480px; object-fit: cover; }
.hdre-layout { display: grid; grid-template-columns: 250px minmax(0,1fr); gap: clamp(32px,4vw,64px); padding-block: 40px 72px; }
.hdre-sidebar { align-self: start; position: sticky; top: calc(var(--hdr-header-height) + var(--hdr-admin-offset) + 24px); max-height: calc(100dvh - var(--hdr-header-height) - var(--hdr-admin-offset) - 48px); overflow-y: auto; }
.hdre-toc { border-top: 2px solid var(--hdr-blue); padding-top: 16px; }
.hdre-toc summary { min-height: 44px; cursor: pointer; font: 400 .75rem/1.6 ui-monospace,Consolas,monospace; color: var(--hdr-blue); }
.hdre-toc ol { padding-left: 24px; margin-block: 12px 24px; }
.hdre-toc li { padding: 8px 0 8px 4px; font-size: .8125rem; line-height: 1.45; color: var(--hdr-muted); }
.hdre-toc li::marker { color: var(--hdr-blue); font: 400 .6875rem/1.5 ui-monospace,Consolas,monospace; }
.hdre-toc a { display: inline-block; padding-block: 3px; }
.hdre-toc a:hover { color: var(--hdr-blue); }
.hdre-body { max-width: 900px; min-width: 0; font-size: 1.0625rem; line-height: 1.75; }
.hdre-section { padding-block: 36px; border-bottom: 1px solid var(--hdr-line); }
.hdre-section:first-of-type { padding-top: 24px; }
.hdr-article-page .hdre-body h2 { font-size: clamp(1.875rem,2.8vw,2.75rem); margin-bottom: 28px; }
.hdr-article-page .hdre-body h3 { font: italic 400 clamp(1.5rem,2vw,1.875rem)/1.3 Georgia,serif; margin-block: 32px 16px; letter-spacing: -.015em; }
.hdre-body p { margin-bottom: 20px; max-width: 74ch; }
.hdre-body ul,.hdre-body ol { padding-left: 24px; margin-bottom: 24px; }
.hdre-body li { margin-bottom: 10px; padding-left: 4px; }
.hdre-body li::marker { color: var(--hdr-blue); }
.hdre-body strong { font-weight: 600; }
.hdre-body a { color: var(--hdr-blue); text-decoration: underline; text-underline-offset: 4px; }
.hdre-columns { display: grid; grid-template-columns: repeat(auto-fit,minmax(min(100%,240px),1fr)); gap: 28px; margin-block: 28px; }
.hdre-column { min-width: 0; }
.hdre-column h3:first-child { margin-top: 0; }
.hdre-note { padding: clamp(24px,3vw,36px); background: #f3f5fa; margin-block: 28px; }
.hdre-note > :last-child { margin-bottom: 0; }
.hdre-quote { margin-block: 28px !important; padding: 24px 0 24px 28px; border-left: 2px solid var(--hdr-blue); }
.hdre-quote p { font: italic 400 1.25rem/1.5 Georgia,serif; }
.hdre-quote p:last-child { margin-bottom: 0; }
.hdre-note .hdre-quote { padding-block: 0; margin-block: 0 !important; }
.hdre-table-scroll { overflow-x: auto; margin-block: 28px; }
.hdre-body table { width: 100%; min-width: 500px; border-collapse: collapse; font-size: .9375rem; }
.hdre-body th,.hdre-body td { padding: 16px; text-align: left; vertical-align: top; border: 0; border-bottom: 1px solid var(--hdr-line); }
.hdre-body th { background: var(--hdr-ink); color: #fff; font-weight: 400; }
.hdre-body tbody tr:nth-child(even) { background: #f3f5fa; }
.hdre-body figure img { width: 100%; height: auto; }
.hdre-body .hdr-pillar-image { margin-block: 32px; }
.hdre-steps h3 { border-top: 1px solid var(--hdr-line); padding-top: 24px; color: var(--hdr-blue); }
.hdre-experience { background: #f3f5fa; padding: clamp(24px,3vw,40px); margin-block: 28px; }
.hdre-experience .hdre-note { padding: 0; }
.hdre-experience blockquote:not(.hdre-quote) { font: italic 400 1.375rem/1.5 Georgia,serif; padding: 24px 0; }
.hdre-experience cite { font: 400 .75rem/1.5 ui-monospace,Consolas,monospace; color: var(--hdr-muted); }
.hdre-attention > .hdre-group > h2 { border-top: 2px solid var(--hdr-blue); padding-top: 24px; }
.hdre-faq-item { border-top: 1px solid var(--hdr-line); }
.hdre-faq-item:last-child { border-bottom: 1px solid var(--hdr-line); }
.hdre-faq-item summary { padding-block: 20px; cursor: pointer; font-size: 1.0625rem; }
.hdre-faq-item[open] summary { color: var(--hdr-blue); }
.hdre-faq-item > div { padding-bottom: 12px; }
.hdre-related { background: #f3f5fa; padding-block: 48px; }
.hdr-article-page .hd-related-articles { margin: 0; padding: 0; }
.hdr-article-page .hd-related-articles__grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 32px; }
.hdr-article-page .hd-related-article { border-radius: 0; background: transparent; box-shadow: none; border: 0; }
.hdr-article-page .hd-related-article__image-link,.hdr-article-page .hd-related-article__image-link img { border-radius: 0; }
.hdr-article-page .hd-related-article__content { padding: 20px 0; }
@media (max-width: 1000px) {
 .hdre-layout { grid-template-columns: 1fr; gap: 28px; }
 .hdre-sidebar { position: static; max-height: none; }
 .hdre-body { max-width: none; }
 .hdre-toc ol { columns: 2; column-gap: 40px; }
 .hdre-toc li { break-inside: avoid; }
 .hdre-back { display: none !important; }
}
@media (max-width: 760px) {
 .hdre-opening { padding-top: 16px; }
 .hdr-article-page .hdre-opening h1 { font-size: clamp(2.125rem,7vw,3rem); }
 .hdre-layout { grid-template-columns: 1fr; padding-block: 28px 40px; gap: 24px; }
 .hdre-sidebar { position: static; max-height: none; }
 .hdre-back { display: none !important; }
 .hdre-toc ol { columns: 1; }
 .hdre-body { max-width: none; font-size: 1rem; }
 .hdre-section { padding-block: 28px; }
 .hdre-columns,.hdr-article-page .hd-related-articles__grid { grid-template-columns: 1fr; }
 .hdre-intro p:first-child { font-size: 1.125rem; }
}

/* 0.57 — budgets par univers et compositions texte / photographie. */
.hdre-budget-heading { padding-bottom: 0; border-bottom: 0; }
.hdre-budget-ranges { padding-top: 12px; }
.hdre-budget-ranges > .hdre-group { counter-reset: hdre-budget; }
.hdre-budget-ranges .hdre-faq-item { padding-inline: 24px; background: #f3f5fa; }
.hdre-budget-ranges .hdre-faq-item summary { font: italic 400 clamp(1.375rem,2vw,1.75rem)/1.3 Georgia,serif; padding-block: 24px; }
.hdre-budget-ranges .hdre-faq-item summary::before { counter-increment: hdre-budget; content: counter(hdre-budget,decimal-leading-zero) ' / '; font: 400 .6875rem/1.5 ui-monospace,Consolas,monospace; color: var(--hdr-blue); margin-right: 8px; }
.hdre-budget-ranges .hdre-faq-item[open] { background: #fff; }
.hdre-budget-ranges td:last-child { width: 34%; color: var(--hdr-blue); font-variant-numeric: tabular-nums; text-align: right; }
.hdre-budget-ranges th:last-child { text-align: right; }
.hdre-budget-ranges td:last-child strong { font-weight: 400; }
.hdre-body .hdre-columns-image { grid-template-columns: 1fr 1.5fr; align-items: start; gap: 28px; }
.hdre-body .hdre-columns-image:has(> .hdre-column-visual:first-child) { grid-template-columns: 1.5fr 1fr; }
.hdre-body .hdre-columns-image:has(> .hdre-column-visual:first-child):has(> .hdre-column-visual:last-child) { grid-template-columns: 1fr 1fr; }
.hdre-body .hdre-column-visual > .hdr-pillar-image:first-child { margin-top: 0; }
.hdre-illusion-families .hdre-columns-image { padding-block: 28px; border-top: 1px solid var(--hdr-line); margin-block: 0; }
.hdre-illusion-families .hdre-column-visual img { object-fit: contain; }
.hdre-illusion-families .hdre-column h3:first-child { color: var(--hdr-blue); }
@media (max-width: 760px) {
 .hdre-body .hdre-columns-image,
 .hdre-body .hdre-columns-image:has(> .hdre-column-visual:first-child),
 .hdre-body .hdre-columns-image:has(> .hdre-column-visual:first-child):has(> .hdre-column-visual:last-child) { grid-template-columns: 1fr; gap: 20px; }
 .hdre-budget-ranges .hdre-faq-item { padding-inline: 16px; }
}

/* 0.58 — choix de support, lecture des perspectives, parcours de création. */
.hdre-solutions .hdre-columns { grid-template-columns: repeat(3,minmax(0,1fr)); gap: 16px; }
.hdre-solutions .hdre-column { background: #f3f5fa; padding: 24px 20px; }
.hdre-solutions .hdre-column > .hdr-kicker { color: var(--hdr-blue); font-size: .625rem; margin-bottom: 20px; }
.hdre-solutions .hdre-column > .hdr-kicker::before { width: 8px; height: 8px; margin-right: 8px; }
.hdr-article-page .hdre-solutions .hdre-column h3 { font-size: 1.5rem; margin-top: 0; }
.hdre-solutions .hdre-column p { font-size: .875rem; line-height: 1.65; }
.hdre-solutions .hdre-column > :last-child { margin-bottom: 0; }
.hdre-solution-detail > .hdre-group > .hdr-kicker,
.hdre-solution-detail > .hdre-group > .hdre-group > .hdr-kicker { color: var(--hdr-blue); }
.hdre-process-heading .hdre-process-overview { grid-template-columns: 1fr; counter-reset: hdre-stage; gap: 0; margin-bottom: 0; }
.hdre-process-overview > .hdre-column { position: relative; padding: 24px 20px 24px 72px; border-top: 1px solid var(--hdr-line); }
.hdre-process-overview > .hdre-column:nth-child(even) { background: #f3f5fa; }
.hdre-process-overview > .hdre-column::before { counter-increment: hdre-stage; content: counter(hdre-stage,decimal-leading-zero); position: absolute; left: 16px; top: 24px; font: italic 400 1.875rem/1.2 Georgia,serif; color: var(--hdr-blue); }
.hdr-article-page .hdre-process-overview > .hdre-column h3 { margin-block: 0 12px; font-size: 1.5rem; }
.hdre-process-overview > .hdre-column p { margin-bottom: 10px; }
.hdre-process-overview > .hdre-column > p:last-child { font: 400 .75rem/1.6 ui-monospace,Consolas,monospace; color: var(--hdr-muted); margin-bottom: 0; }
.hdre-process-overview > .hdre-column > p:last-child em { font-style: normal; }
.hdr-article-page .hdre-creation-step > h2 { padding-top: 20px; border-top: 2px solid var(--hdr-blue); }
.hdre-creation-step > .hdre-columns:not(.hdre-columns-image) { gap: 20px; }
.hdre-creation-step > .hdre-columns:not(.hdre-columns-image) > .hdre-column { padding: 24px; background: #f3f5fa; }
.hdre-body .hdre-visual-series { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 20px; margin-block: 32px; }
.hdre-body .hdre-visual-series > .hdr-pillar-image { margin: 0; min-width: 0; }
.hdre-visual-series > .hdr-pillar-image:first-child { grid-column: 1 / -1; }
.hdre-body .hdre-visual-single { grid-template-columns: 1fr; }
@media (max-width: 1100px) { .hdre-solutions .hdre-columns { grid-template-columns: 1fr; } }
@media (max-width: 760px) {
 .hdre-body .hdre-visual-series { grid-template-columns: 1fr; gap: 20px; }
 .hdre-process-overview > .hdre-column { padding-right: 16px; padding-left: 64px; }
 .hdre-solutions .hdre-column { padding: 24px; }
}

/* 0.59 — finitions communes aux sept articles. */
.hdr-article-page .hdre-opening h1,
.hdr-article-page .hdre-body :is(h2,h3) { text-wrap: balance; overflow-wrap: break-word; }
.hdre-opening { border-bottom: 1px solid var(--hdr-line); }
.hdre-intro { max-width: 78ch; }
.hdre-meta time { font-variant-numeric: tabular-nums; }
.hdre-toc a { padding-block: 6px; }
.hdre-toc a[aria-current="location"] { color: var(--hdr-blue); text-decoration: underline; text-underline-offset: 4px; }
.hdre-section:last-child { border-bottom: 0; }
.hdre-section > .hdre-group > :last-child,
.hdre-section > :last-child:not(.hdre-group) { margin-bottom: 0; }
.hdre-body :is(ul,ol) { max-width: 74ch; }
.hdre-column > :last-child { margin-bottom: 0; }
.hdre-note .hdre-note { padding: 0; margin-block: 20px; }
.hdre-body blockquote cite { display: block; margin-top: 16px; }
.hdre-body .hdre-table-scroll { max-width: 100%; overscroll-behavior-inline: contain; scrollbar-color: var(--hdr-blue) #f3f5fa; }
.hdre-table-scroll:focus-visible { outline: 2px solid var(--hdr-blue); outline-offset: 4px; }
.hdre-body table :is(th,td) { line-height: 1.55; overflow-wrap: break-word; }
.hdre-faq-item summary { line-height: 1.5; }
.hdre-faq-item summary::marker { color: var(--hdr-blue); }
.hdre-faq-item summary:hover { color: var(--hdr-blue); }
.hdre-faq-item > div > :last-child,
.hdre-faq-item > div > .hdre-group > :last-child { margin-bottom: 0; }
.hdre-faq-item > div { padding-bottom: 24px; }
.hdr-article-page .hd-read-more { --hd-read-more-cyan: var(--hdr-blue); --hd-read-more-title: var(--hdr-ink); --hd-read-more-bg: #f3f5fa; border-left-width: 2px; margin-block: 28px; }
.hdr-article-page .hd-read-more__kicker { font: 400 .6875rem/1.5 ui-monospace,Consolas,monospace; letter-spacing: .035em; }
.hdr-article-page .hd-read-more__title { font: italic 400 1.25rem/1.4 Georgia,serif; }
.hdr-article-page .hd-read-more__link { padding: 24px; }
.hdr-article-page .hd-related-articles { margin-bottom: 0 !important; }
.hdr-article-page .hd-related-articles__heading { text-align: left; margin-bottom: 32px; }
.hdr-article-page .hd-related-articles__kicker { font: 400 .6875rem/1.6 ui-monospace,Consolas,monospace; color: var(--hdr-blue); letter-spacing: .035em; margin-bottom: 16px; }
.hdr-article-page .hd-related-articles__kicker::before { content: ''; display: inline-block; width: 24px; height: 1px; margin-right: 12px; background: currentColor; vertical-align: middle; }
.hdr-article-page .hd-related-articles__title { font-size: clamp(1.875rem,2.8vw,2.75rem); }
.hdr-article-page .hd-related-article__image-link { margin-bottom: 0; background: #e7ebf4; }
.hdr-article-page .hd-related-article__image-link img { width: 100%; height: 100%; object-fit: cover; }
.hdr-article-page .hd-related-article__meta { font: 400 .6875rem/1.6 ui-monospace,Consolas,monospace; color: var(--hdr-muted); gap: 8px; }
.hdr-article-page .hd-related-article__category { color: var(--hdr-blue); font-weight: 400; }
.hdr-article-page .hd-related-article__title { font-size: clamp(1.25rem,1.8vw,1.625rem); letter-spacing: -.025em; }
.hdr-article-page .hd-related-article__title a:hover { color: var(--hdr-blue); }
.hdr-article-page .hd-related-article__excerpt { font-size: .9375rem; color: var(--hdr-muted); margin-top: 16px; }
.hdr-article-page .hd-related-article__link { min-height: 44px; color: var(--hdr-blue); font-weight: 400; border-bottom: 1px solid currentColor; }
.hdr-article-page .hd-related-article__link span { color: inherit; }
@media (max-width: 1000px) {
 .hdr-article-page .hd-related-articles__grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
}
@media (max-width: 760px) {
 .hdre-opening { padding-bottom: 28px; }
 .hdre-hero-photo img { max-height: 320px; }
 .hdr-article-page .hd-related-articles__grid { grid-template-columns: 1fr; }
 .hdr-article-page .hd-read-more__link { padding: 20px 16px; }
 .hdre-toc a { min-height: 40px; }
}
@media (prefers-reduced-motion: reduce) {
 .hdr-article-page .hd-related-article__image,
 .hdr-article-page .hd-related-article__image-link:hover .hd-related-article__image,
 .hdr-article-page .hd-related-article__link span { transition: none; transform: none; }
}

/* 0.60 — ouverture de journal : titre transversal, photo et introduction. */
.hdre-hero .hdre-opening { max-width: none; padding-block: 24px 32px; border-bottom: 0; }
.hdre-heading-bar { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 12px 32px; margin-bottom: 24px; }
.hdre-heading-bar > .hdr-kicker,.hdre-heading-bar > .hdre-meta { margin-bottom: 0; }
.hdr-article-page .hdre-opening h1 { max-width: 1320px; font-size: clamp(2.5rem,4vw,4.25rem); margin-bottom: 0; }
.hdre-cover { padding-bottom: 32px; border-bottom: 1px solid var(--hdr-line); }
.hdre-cover-illustrated { display: grid; grid-template-columns: minmax(0,1.6fr) minmax(0,1fr); gap: clamp(28px,3vw,48px); align-items: start; }
.hdre-cover-compact { grid-template-columns: minmax(0,1fr) minmax(0,1.35fr); }
.hdre-cover-copy { min-width: 0; }
.hdre-cover-copy .hdre-intro { max-width: 78ch; }
.hdre-cover-illustrated .hdre-intro { max-width: 52ch; }
.hdre-cover .hdre-hero-photo { margin: 0; min-width: 0; }
.hdre-cover .hdre-hero-photo img { width: 100%; height: auto; max-height: none; object-fit: contain; }
.hdre-cover-copy .hdre-update { padding-top: 20px; border-top: 1px solid var(--hdr-line); max-width: 78ch; }
.hdre-cover-copy .hdre-intro > :last-child { margin-bottom: 0; }
@media (max-width: 1000px) {
 .hdre-cover-illustrated { grid-template-columns: 1fr; gap: 28px; }
 .hdre-cover-illustrated .hdre-intro { max-width: 78ch; }
 .hdre-cover-compact .hdre-hero-photo { max-width: 480px; }
 .hdre-heading-bar { align-items: flex-start; }
}
@media (max-width: 760px) {
 .hdre-hero .hdre-opening { padding-block: 16px 24px; }
 .hdre-heading-bar { gap: 12px; margin-bottom: 20px; }
 .hdre-heading-bar > .hdre-meta { flex-basis: 100%; gap: 16px; }
 .hdr-article-page .hdre-opening h1 { font-size: clamp(2.125rem,7vw,3rem); }
 .hdre-cover { padding-bottom: 24px; }
 .hdre-cover-illustrated { gap: 24px; }
}