/*
 * home.css — Page d'accueil technique-froid.fr · Direction C
 * Source de vérité : accueil-direction-c.html (maquette validée C. Lucas)
 * Chargé uniquement sur la homepage via _includes/home.njk
 * Ne pas fusionner avec style.css
 */

/* === TOKENS ======================================================= */
:root {
  --bg:        #f6f3ec;
  --paper:     #fbf9f3;
  --paper-2:   #f1ecdf;
  --ink:       #1b2230;
  --text:      #22293a;
  --mute:      #5d6679;
  --dim:       #8c93a4;
  --line:      #d8d1be;
  --line-soft: #e6e0cf;
  --accent:    #9c2a2a;
  --accent-2:  #1b3a5c;
  --note:      #3a5a2f;
  --serif: "Source Serif 4","Source Serif Pro","Iowan Old Style",Georgia,serif;
  --sans:  "Inter",ui-sans-serif,system-ui,sans-serif;
  --mono:  "JetBrains Mono",ui-monospace,Menlo,monospace;
}

/* === RESET ========================================================= */
* { box-sizing: border-box }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); font: 14px/1.55 var(--sans); -webkit-font-smoothing: antialiased }
a { color: inherit; text-decoration: none }
::selection { background: var(--ink); color: var(--bg) }

/* === FOCUS VISIBLE (accessibilité WCAG AA) ======================== */
:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px }

/* === META STRIP ==================================================== */
.meta-strip { display: flex; align-items: center; padding: 8px 32px; font: 11px/1 var(--mono); color: var(--mute); letter-spacing: .04em; border-bottom: 1px solid var(--line-soft); background: var(--paper) }
.meta-strip .sep { margin: 0 10px; color: var(--dim) }
.meta-strip .right { margin-left: auto; display: flex; gap: 14px; align-items: center }
.meta-strip .pill { padding: 2px 8px; border: 1px solid var(--line); border-radius: 2px; color: var(--mute) }

/* === SITE BAR ====================================================== */
header.site { background: var(--paper); border-bottom: 1px solid var(--line) }
.site-bar { display: flex; align-items: center; padding: 22px 32px; gap: 28px; max-width: 1320px; margin: 0 auto }
.brand { display: flex; align-items: center; gap: 14px }
.brand-mark { width: 46px; height: 46px; border: 1.5px solid var(--ink); display: grid; place-items: center; color: var(--ink) }
.brand-name { font: 600 26px/1 var(--serif); letter-spacing: -.01em; color: var(--ink) }
.brand-name .dim { color: var(--mute); font-weight: 400 }
.brand-sub { font: 11px/1 var(--sans); color: var(--mute); letter-spacing: .18em; text-transform: uppercase; margin-top: 5px }
nav.primary { margin-left: auto; display: flex; gap: 30px; font: 13px/1 var(--sans); letter-spacing: .04em }
nav.primary a { color: var(--mute); padding-bottom: 4px; border-bottom: 2px solid transparent; transition: color .12s, border-color .12s; cursor: pointer }
nav.primary a:hover { color: var(--ink) }
nav.primary a.active { color: var(--ink); font-weight: 600; border-bottom-color: var(--accent) }
.nav-toggle { display: none; margin-left: auto; align-items: center; justify-content: center; background: none; border: 1px solid var(--line); border-radius: 3px; padding: 7px; color: var(--ink); cursor: pointer }
.nav-toggle svg { display: block }
.header-cta { display: flex; align-items: center; gap: 10px }
.btn-ghost { padding: 9px 14px; border: 1px solid var(--line); background: transparent; font: 500 13px/1 var(--sans); color: var(--ink); cursor: pointer; letter-spacing: .02em }
.btn-ink { padding: 10px 16px; background: var(--ink); color: var(--bg); font: 500 13px/1 var(--sans); letter-spacing: .06em; text-transform: uppercase; cursor: pointer; display: inline-flex; align-items: center; gap: 8px; border: none }

/* === QUICK-TOOLS SUB-BAR ========================================== */
.quick-tools { background: var(--paper); border-bottom: 1px solid var(--line) }
.quick-tools .inner { max-width: 1320px; margin: 0 auto; display: flex; align-items: center; padding: 0 32px; gap: 0 }
.quick-tools .label { font: 11px/1 var(--mono); letter-spacing: .18em; color: var(--mute); padding: 14px 18px 14px 0; border-right: 1px solid var(--line); text-transform: uppercase }
.quick-tools ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 0; flex: 1 }
.quick-tools li { display: flex; align-items: center; border-right: 1px solid var(--line-soft); transition: background .12s }
.quick-tools li:hover { background: var(--paper-2) }
.quick-tools li a { display: flex; align-items: center; gap: 10px; padding: 14px 22px; font: 13px/1 var(--sans); color: var(--text); width: 100% }
.quick-tools li .num { font-family: var(--mono); font-size: 11px; color: var(--dim); letter-spacing: .05em }
.quick-tools li .name { font-weight: 500 }
.quick-tools .search { margin-left: auto; display: flex; align-items: center; gap: 10px; padding: 0 22px; color: var(--mute) }
.quick-tools .search input { border: none; background: transparent; font: 13px/1 var(--sans); color: var(--text); outline: none; width: 200px }
.quick-tools .search input::placeholder { color: var(--dim) }
.quick-tools .kbd { font: 11px/1 var(--mono); padding: 3px 6px; border: 1px solid var(--line); border-radius: 2px; color: var(--mute) }

/* === HERO ========================================================== */
.hero { border-bottom: 1px solid var(--line); background: var(--paper); position: relative; overflow: hidden }
.hero-inner { max-width: 1320px; margin: 0 auto; padding: 54px 32px 44px; display: grid; grid-template-columns: 1.45fr 1fr; gap: 56px; align-items: center }
.hero .kicker { font: 11px/1 var(--mono); color: var(--accent); letter-spacing: .2em; margin-bottom: 18px }
.hero h1 { font: 400 64px/1.04 var(--serif); color: var(--ink); margin: 0; letter-spacing: -.025em }
.hero h1 em { font-style: italic; color: var(--mute); font-weight: 400 }
.hero .lede { font: 18px/1.55 var(--serif); color: var(--text); margin-top: 20px; max-width: 600px; text-wrap: pretty }
.hero-actions { display: flex; gap: 12px; margin-top: 28px; align-items: center }
.hero-meta { display: flex; gap: 28px; margin-top: 32px; padding-top: 22px; border-top: 1px dotted var(--line); font: 13px/1.5 var(--serif); color: var(--mute) }
.hero-meta .stat { display: flex; flex-direction: column; gap: 4px }
.hero-meta .stat .v { font: 500 22px/1 var(--mono); color: var(--ink); letter-spacing: -.01em }
.hero-meta .stat .k { font: 11px/1 var(--sans); letter-spacing: .08em; text-transform: uppercase; color: var(--mute); font-weight: 500 }

/* hero side — table des matières */
.hero-aside { border-left: 1px solid var(--line); padding-left: 36px; display: flex; flex-direction: column; justify-content: center }
.hero-aside .hd { font: 11px/1 var(--mono); letter-spacing: .18em; color: var(--mute); margin-bottom: 14px; text-transform: uppercase }
.hero-aside .toc { display: flex; flex-direction: column; gap: 9px; font: 14px var(--serif) }
.hero-aside .toc .row { display: flex; align-items: baseline; gap: 10px }
.hero-aside .toc .n { font: 11px var(--mono); color: var(--dim); min-width: 24px }
.hero-aside .toc .t { color: var(--ink); text-decoration: none }
.hero-aside .toc a.t:hover { text-decoration: underline; text-underline-offset: 2px }
.hero-aside .toc .dots { flex: 1; border-bottom: 1px dotted var(--line); margin-bottom: 3px }
.hero-aside .toc .p { font: 11px var(--mono); color: var(--mute) }
.hero-aside .next-issue { margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--line); font: italic 13px/1.5 var(--serif); color: var(--mute) }

/* === ANIMATION EN VEDETTE ========================================== */
.featured-anim { background: var(--paper-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line) }
.featured-anim-inner { max-width: 1320px; margin: 0 auto; padding: 36px 32px }
.featured-anim-label { font: 11px/1 var(--mono); letter-spacing: .18em; color: var(--accent); text-transform: uppercase; margin-bottom: 18px }
.featured-anim-card { display: grid; grid-template-columns: 420px 1fr; gap: 48px; align-items: center }
.featured-anim-img { display: block; border: 1px solid var(--line); overflow: hidden; border-radius: 2px }
.featured-anim-img img { width: 100%; height: 240px; object-fit: contain; display: block; filter: grayscale(100%); transition: opacity .2s }
.featured-anim-img:hover img { opacity: .88 }
.featured-anim-tag { font: 11px/1 var(--mono); letter-spacing: .1em; color: var(--mute); text-transform: uppercase; margin-bottom: 12px }
.featured-anim-body h2 { font: 500 26px/1.15 var(--serif); color: var(--ink); margin: 0 0 14px; letter-spacing: -.01em }
.featured-anim-body h2 a { color: inherit; text-decoration: none }
.featured-anim-body h2 a:hover { text-decoration: underline; text-underline-offset: 3px }
.featured-anim-body p { font: 16px/1.6 var(--serif); color: var(--text); margin: 0 0 22px }
.featured-anim-cta { display: inline-flex; align-items: center; gap: 8px; background: var(--ink); color: var(--bg); font: 600 12px/1 var(--sans); letter-spacing: .08em; text-transform: uppercase; padding: 12px 20px; text-decoration: none; border-radius: 2px; transition: opacity .15s }
.featured-anim-cta:hover { opacity: .85 }
@media (max-width: 980px) {
  .featured-anim-card { grid-template-columns: 1fr; gap: 24px }
  .featured-anim-img img { height: 200px }
}

/* === SECTION HEADERS =============================================== */
.section { max-width: 1320px; margin: 0 auto; padding: 48px 32px }
.section-header { display: flex; align-items: flex-end; justify-content: space-between; padding-bottom: 14px; border-bottom: 2px solid var(--ink); margin-bottom: 26px }
.section-header h2 { font: 500 26px/1 var(--serif); color: var(--ink); margin: 0; letter-spacing: -.01em }
.section-header h2 em { font-style: italic; color: var(--mute); font-weight: 400 }
.section-header .nav { display: flex; align-items: center; gap: 18px; font: 11px/1 var(--mono); color: var(--mute); letter-spacing: .08em }
.section-header .nav a { cursor: pointer }
.section-header .nav a:hover { color: var(--ink) }
.section-header .nav .arrow { font-family: var(--serif); font-size: 14px }

/* === ARTICLES GRID ================================================= */
.articles-layout { display: grid; grid-template-columns: 1.7fr 1fr; gap: 44px }

.article-list { display: flex; flex-direction: column; gap: 0 }
.article-row { display: grid; grid-template-columns: 200px 1fr; gap: 24px; padding: 24px 0; border-bottom: 1px solid var(--line) }
.article-row:first-child { padding-top: 0 }
.article-row:last-child { border-bottom: none }
.article-row .img { width: 100%; height: 140px; background: var(--paper-2); border: 1px solid var(--line); position: relative; overflow: hidden }
.article-row .img svg { position: absolute; inset: 0; width: 100%; height: 100% }
.article-row .img img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; filter: grayscale(100%) }
.article-row .body { display: flex; flex-direction: column; gap: 8px }
.meta-line { display: flex; align-items: center; gap: 10px; font: 11px/1 var(--mono); color: var(--mute); letter-spacing: .06em }
.cat { padding: 3px 8px; border: 1px solid var(--line); text-transform: uppercase; letter-spacing: .14em; color: var(--ink); font-weight: 500; background: var(--paper) }
.cat.regl { color: var(--accent); border-color: var(--accent) }
.cat.meth { color: var(--accent-2); border-color: var(--accent-2) }
.article-row h3 { font: 500 22px/1.2 var(--serif); color: var(--ink); margin: 0; letter-spacing: -.01em }
.article-row h3 a:hover { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px }
.article-row p { font: 14px/1.55 var(--serif); color: var(--text); margin: 0; max-width: 54ch }
.article-row .author { font: italic 12px/1 var(--serif); color: var(--mute); margin-top: auto }

/* Article phare (lead) */
.article-lead { grid-column: 1 / -1; display: grid; grid-template-columns: 1.1fr 1fr; gap: 32px; padding-bottom: 24px; border-bottom: 1px solid var(--line); margin-bottom: 8px }
.article-lead .img { height: 300px; background: var(--paper-2); border: 1px solid var(--line); position: relative; overflow: hidden }
.article-lead .img svg { position: absolute; inset: 0; width: 100%; height: 100% }
.article-lead .img img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; filter: grayscale(100%) }
.article-lead .body { display: flex; flex-direction: column; gap: 14px; padding-top: 6px }
.article-lead h3 { font: 500 36px/1.1 var(--serif); color: var(--ink); margin: 0; letter-spacing: -.02em }
.article-lead p { font: 16px/1.6 var(--serif); color: var(--text); margin: 0; max-width: 50ch }

/* === SIDEBAR ======================================================= */
.sidebar { display: flex; flex-direction: column; gap: 32px }
.sidebar h4 { font: 600 11px/1 var(--sans); letter-spacing: .16em; text-transform: uppercase; color: var(--ink); margin: 0 0 14px; padding-bottom: 10px; border-bottom: 1px solid var(--ink) }
.popular { display: flex; flex-direction: column }
.popular .item { display: grid; grid-template-columns: auto 1fr; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--line) }
.popular .item:last-child { border-bottom: none }
.popular .num { font: 500 22px/1 var(--mono); color: var(--dim); letter-spacing: -.02em }
.popular .t { font: 500 15px/1.3 var(--serif); color: var(--ink); margin-bottom: 4px; text-decoration: none; display: block }
.popular a.t:hover { text-decoration: underline; text-underline-offset: 2px }
.popular .m { font: 11px/1 var(--mono); color: var(--mute); letter-spacing: .04em; display: flex; gap: 8px }

/* Raccourcis PDF */
.doc-links { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; font: 14px/1.4 var(--serif); color: var(--text) }
.doc-links li { padding: 10px 0; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; cursor: pointer }
.doc-links li:last-child { border-bottom: none }
.doc-links .pdf-tag { font: 11px/1 var(--mono); color: var(--mute) }

/* === AD SLOT ======================================================= */
.ad { border: 1px solid var(--line); background: var(--paper); position: relative }
.ad .ad-label { position: absolute; top: -1px; left: -1px; font: 9px/1 var(--mono); letter-spacing: .18em; color: var(--mute); padding: 4px 8px; background: var(--paper-2); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); text-transform: uppercase }
.ad .ph { padding: 36px 24px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; color: var(--dim); font: italic 12px/1.4 var(--serif); text-align: center; min-height: 240px; background-image: repeating-linear-gradient(45deg, transparent 0 9px, rgba(0,0,0,0.025) 9px 10px) }
.ad .ph .size { font: 11px/1 var(--mono); letter-spacing: .08em; color: var(--mute); font-style: normal; margin-top: 4px }

/* Bandeau horizontal */
.ad-banner { max-width: 1320px; margin: 8px auto 0; padding: 0 32px }
.ad-banner .ad { display: grid; grid-template-columns: auto 1fr; align-items: stretch }
.ad-banner .ph { min-height: 90px; flex-direction: row; justify-content: center; gap: 18px }

/* === TOOLS FEATURE ================================================= */
.tools-feature { background: var(--paper); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin-top: 8px }
.tools-feature .inner { max-width: 1320px; margin: 0 auto; padding: 48px 32px }
.tools-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border: 1px solid var(--line); background: var(--paper) }
.tool-card { padding: 28px 28px 26px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); display: flex; flex-direction: column; gap: 14px; position: relative; cursor: pointer; transition: background .12s }
.tool-card:nth-child(3n) { border-right: none }
.tool-card:nth-last-child(-n+3) { border-bottom: none }
.tool-card:hover { background: var(--paper-2) }
.tool-card .top { display: flex; align-items: flex-start; justify-content: space-between }
.tool-card .num { font: 11px/1 var(--mono); color: var(--mute); letter-spacing: .18em }
.tool-card .ver { font: 11px/1 var(--mono); color: var(--dim) }
.tool-card .glyph { width: 100px; height: 72px; overflow: hidden; display: flex; align-items: center; justify-content: center; margin-top: 4px; flex-shrink: 0 }
.tool-card .glyph img { display: block; max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain }
.tool-card h3 { font: 500 26px/1.1 var(--serif); color: var(--ink); margin: 0; letter-spacing: -.015em }
.tool-card .tag { font: 11px/1 var(--sans); letter-spacing: .16em; color: var(--mute); text-transform: uppercase; font-weight: 500 }
.tool-card p { font: 15px/1.55 var(--serif); color: var(--text); margin: 0 }
.tool-card .features { display: flex; flex-direction: column; gap: 6px; font: 13px/1.4 var(--serif); color: var(--mute); padding-top: 6px; border-top: 1px dotted var(--line) }
.tool-card .features .row { display: flex; align-items: baseline; gap: 10px }
.tool-card .features .b { color: var(--ink); font-style: italic }
.tool-card .cta { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between }
.tool-card .cta .open { font: 500 13px/1 var(--sans); color: var(--bg); letter-spacing: .06em; text-transform: uppercase; display: inline-flex; align-items: center; gap: 8px; padding: 9px 14px; background: var(--ink); transition: opacity .12s }
.tool-card .cta .docs { font: italic 13px/1 var(--serif); color: var(--mute) }

.tools-foot { display: flex; justify-content: space-between; align-items: center; margin-top: 18px; font: 13px var(--serif); color: var(--mute); font-style: italic }
.tools-foot a { color: var(--ink); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px }

/* === FOOTER ======================================================== */
footer.site { background: var(--paper); border-top: 2px solid var(--ink); margin-top: 0 }
.footer-inner { max-width: 1320px; margin: 0 auto; padding: 44px 32px 28px; display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 48px }
.footer-brand .name { font: 500 22px/1 var(--serif); color: var(--ink); margin-bottom: 8px; letter-spacing: -.01em }
.footer-brand p { font: 14px/1.55 var(--serif); color: var(--mute); margin: 0; max-width: 32ch }
.footer-col h5 { font: 600 11px/1 var(--sans); letter-spacing: .16em; text-transform: uppercase; color: var(--ink); margin: 0 0 14px }
.footer-col ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 9px; font: 13px/1.4 var(--serif); color: var(--text) }
.footer-col ul li { cursor: pointer }
.footer-col ul li:hover { color: var(--ink); text-decoration: underline; text-underline-offset: 3px }
.footer-bottom { border-top: 1px solid var(--line); padding: 18px 32px; font: 11px/1 var(--mono); color: var(--mute); letter-spacing: .05em; display: flex; justify-content: space-between; align-items: center; max-width: 1320px; margin: 0 auto }
.footer-bottom .legal { display: flex; gap: 18px }

/* === SVG PLACEHOLDER =============================================== */
.ph-pattern { background: repeating-linear-gradient(135deg, #e9e2cf 0 8px, #f1ecdf 8px 16px) }

/* === RESPONSIVE ==================================================== */
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; gap: 32px }
  .hero-aside { border-left: none; border-top: 1px solid var(--line); padding-left: 0; padding-top: 24px }
  .articles-layout { grid-template-columns: 1fr }
  .article-lead { grid-template-columns: 1fr }
  .article-lead .img { height: 220px }
  .tools-grid { grid-template-columns: 1fr }
  .tool-card { border-right: none; border-bottom: 1px solid var(--line) }
  .tool-card:nth-child(3n) { border-right: none }
  .tool-card:nth-last-child(-n+3) { border-bottom: 1px solid var(--line) }
  .tool-card:last-child { border-bottom: none }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px }
  .site-bar { flex-wrap: wrap }
  .nav-toggle { display: inline-flex }
  nav.primary { display: none; order: 3; flex-basis: 100%; margin-left: 0; margin-top: 14px; padding-top: 8px; border-top: 1px solid var(--line); flex-direction: column; gap: 0 }
  nav.primary.open { display: flex }
  nav.primary a { padding: 13px 4px; border-bottom: 1px solid var(--line-soft); font-size: 15px }
  nav.primary a.active { border-bottom: 1px solid var(--line-soft); font-weight: 600; color: var(--accent) }
  .quick-tools .inner { overflow-x: auto }
  .quick-tools .label { display: none }
}

@media (max-width: 640px) {
  .article-row { grid-template-columns: 1fr }
  .article-row .img { height: 160px }
  .hero h1 { font-size: 42px }
  .footer-inner { grid-template-columns: 1fr }
  .meta-strip { flex-wrap: wrap; gap: 6px; padding: 10px 16px }
  .site-bar { padding: 18px 16px; flex-wrap: wrap }
  .section { padding: 32px 16px }
  .tools-feature .inner { padding: 32px 16px }
  .footer-inner { padding: 28px 16px }
  .footer-bottom { padding: 14px 16px; flex-direction: column; gap: 8px; align-items: flex-start }
}