/* 📖 Articles de blog TimeKraft, DA Nuit (ADR-0041). Une seule feuille pour les 110 articles et ceux que n8n publiera.
   Valeurs reprises de src/app/globals.css (charte Nuit) : ne pas inventer de couleur ici.
   Catégorie → couleur (David, 04-10-2026) : Automatisation émeraude, IA Business bleu nuit, Stratégie prune,
   Outils ambre, Productivité carte sombre (encre + blanc). Page de lecture : sphères fixes, aucune animation. */

:root {
  --encre: #0a0a12;
  --encre-douce: #4a4a58;
  --encre-pale: #545462;
  --blanc: #ffffff;
  --ligne: rgba(10, 10, 18, 0.1);
  --wa: #25d366;
  --wa-clair: #9cf5bf;
  --wa-fonce: #087a3f;
  --f-texte: "Raleway", ui-sans-serif, system-ui, sans-serif;
  --f-serif: "Instrument Serif", ui-serif, Georgia, serif;
  --f-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, monospace;
  /* Couleur de la page (par défaut : bleu nuit) */
  --cat: #23397a;
  --cat-pale: #919cbc;
  --cat-fond: radial-gradient(circle at center, #ffffff 0%, #f0f1f6 36%, #cacfdf 100%);
  /* Anciennes variables encore utilisées en ligne par le HTML que produit n8n (FAQ, cartes connexes) */
  --border-subtle: var(--ligne);
  --text-secondary: var(--encre-douce);
  --text-muted: var(--encre-pale);
}
.cat-automatisation { --cat: #1e6e5a; --cat-pale: #8eb6ac; --cat-fond: radial-gradient(circle at center, #ffffff 0%, #eff5f3 36%, #c9dcd7 100%); }
.cat-ia-business { --cat: #23397a; --cat-pale: #919cbc; --cat-fond: radial-gradient(circle at center, #ffffff 0%, #f0f1f6 36%, #cacfdf 100%); }
.cat-strategie { --cat: #82266e; --cat-pale: #c092b6; --cat-fond: radial-gradient(circle at center, #ffffff 0%, #f6f0f5 36%, #e1cbdc 100%); }
.cat-outils { --cat: #c0862a; --cat-pale: #e0c294; --cat-fond: radial-gradient(circle at center, #ffffff 0%, #fbf7f0 36%, #f0e2cc 100%); }
.cat-productivite { --cat: #0a0a12; --cat-pale: #b9bccb; --cat-fond: radial-gradient(circle at center, #ffffff 0%, #f0f1f6 36%, #d6d8e2 100%); }

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 6rem; }
/* Débordement coupé sur html ET body : « hidden » sur le seul body laisse les mobiles élargir la page (menu hors écran) */
html, body.tk-article { overflow-x: hidden; overflow-x: clip; }
body.tk-article {
  margin: 0;
  min-height: 100vh;
  background: var(--cat-fond) fixed, #f0f1f6;
  color: var(--encre);
  font-family: var(--f-texte);
  font-size: 17px;
  line-height: 1.65;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; }
a { color: inherit; }

/* Sphères de fond : la matière des bulles du site, figées pour la lecture */
.tk-fond { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.tk-sphere { position: absolute; border-radius: 50%;
  background: radial-gradient(circle at 34% 28%, rgba(255,255,255,0.95) 0%, color-mix(in srgb, var(--cat-pale) 80%, white) 14%, var(--cat) 58%, color-mix(in srgb, var(--cat) 70%, black) 100%);
  box-shadow: inset 0 -10px 30px rgba(0,0,0,0.18), 0 30px 60px -30px color-mix(in srgb, var(--cat) 70%, transparent); opacity: 0.9; }
.tk-sphere.s1 { width: 260px; height: 260px; top: -60px; right: -40px; }
.tk-sphere.s2 { width: 120px; height: 120px; top: 150px; right: 210px; opacity: 0.55; }
.tk-sphere.s3 { width: 70px; height: 70px; top: 60px; right: 330px; opacity: 0.4; }
.tk-sphere.s4 { width: 180px; height: 180px; bottom: -70px; left: -60px; opacity: 0.35; }

/* En-tête : même menu que les pages Nuit (logo, barre de verre centrée, Bilan IA) */
.tk-entete { position: fixed; inset: 0 0 auto 0; z-index: 40; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 1.5rem;
  height: 5.5rem; padding: 0 3rem; transition: background-color 0.25s ease, backdrop-filter 0.25s ease; }
.tk-entete.tk-defile { background: rgba(240, 241, 246, 0.72); backdrop-filter: blur(18px) saturate(150%); -webkit-backdrop-filter: blur(18px) saturate(150%); border-bottom: 1px solid var(--ligne); }
.tk-logo img { display: block; height: 22px; width: auto; }
.tk-nav { justify-self: center; }
.tk-nav ul { display: flex; gap: 0.15rem; margin: 0; padding: 0.35rem; list-style: none; border-radius: 999px;
  background: rgba(255,255,255,0.72); border: 1px solid rgba(255,255,255,0.8); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); box-shadow: 0 10px 30px -18px rgba(10,10,18,0.35); }
.tk-nav li { position: relative; }
.tk-lien { display: inline-flex; align-items: center; gap: 0.3rem; padding: 0.5rem 0.85rem; border-radius: 999px; font-size: 14px; font-weight: 500; text-decoration: none; color: var(--encre); white-space: nowrap; transition: background-color 0.2s ease; }
.tk-lien:hover, .tk-groupe:focus-within > .tk-lien { background: color-mix(in srgb, var(--cat) 10%, white); }
.tk-chevron { font-size: 12px; opacity: 0.6; }
.tk-sous { position: absolute; left: 50%; top: 100%; padding-top: 0.6rem; transform: translateX(-50%); visibility: hidden; opacity: 0; transition: opacity 0.2s ease; }
.tk-groupe:hover .tk-sous, .tk-groupe:focus-within .tk-sous { visibility: visible; opacity: 1; }
.tk-sous-carte { min-width: 15rem; padding: 0.6rem; border-radius: 1.1rem; background: rgba(255,255,255,0.92); border: 1px solid rgba(255,255,255,0.9); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px); box-shadow: 0 24px 50px -24px rgba(10,10,18,0.45); }
.tk-sous-carte a { display: block; padding: 0.5rem 0.75rem; border-radius: 0.7rem; font-size: 14px; text-decoration: none; color: var(--encre); }
.tk-sous-carte a:hover { background: color-mix(in srgb, var(--cat) 10%, white); }
.tk-sous-carte a.tk-fort { font-weight: 700; }
.tk-menu-titre { margin: 0.4rem 0.75rem 0.2rem; font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--encre-pale); }
.tk-cta-entete { display: inline-flex; align-items: center; gap: 0.6rem; padding: 0.55rem 0.6rem 0.55rem 1.2rem; border-radius: 999px; background: var(--encre); color: var(--blanc); font-size: 14px; font-weight: 600; text-decoration: none; }
.tk-cta-entete span { display: inline-flex; width: 1.9rem; height: 1.9rem; align-items: center; justify-content: center; border-radius: 50%; background: var(--cat); color: var(--blanc); }
.tk-burger { display: none; width: 2.75rem; height: 2.75rem; border-radius: 50%; border: 1px solid var(--ligne); background: rgba(255,255,255,0.8); cursor: pointer; padding: 0; position: relative; }
.tk-burger span { position: absolute; left: 0.8rem; right: 0.8rem; height: 2px; background: var(--encre); border-radius: 2px; }
.tk-burger span:first-child { top: 1.05rem; } .tk-burger span:last-child { top: 1.5rem; }
.tk-menu-mobile { position: fixed; inset: 0; z-index: 39; padding: 6.5rem 1.5rem 7rem; overflow-y: auto; background: rgba(240,241,246,0.97); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); }
.tk-menu-mobile nav { display: flex; flex-direction: column; }
.tk-menu-mobile a { padding: 0.65rem 0; font-size: 18px; font-weight: 500; text-decoration: none; color: var(--encre); border-bottom: 1px solid var(--ligne); }
.tk-mobile-titre { margin: 1.4rem 0 0.2rem; font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--cat); }
.tk-menu-mobile a.tk-menu-cta { margin-top: 1.5rem; padding: 1rem; border: 0; border-radius: 999px; text-align: center; background: var(--encre); color: var(--blanc); }

/* Contenu */
main { position: relative; z-index: 1; }
.tk-cadre, .tk-texte, .tk-bloc { width: 100%; max-width: 90rem; margin: 0 auto; padding-left: 5rem; padding-right: 5rem; }
.tk-hero { padding-top: 9rem; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 0.5rem; font-family: var(--f-mono); font-size: 12px; letter-spacing: 0.08em; color: var(--encre-pale); }
.breadcrumb a { color: var(--encre-douce); text-decoration: none; } .breadcrumb a:hover { color: var(--cat); }
.category-badge { display: inline-block; margin-top: 2rem; padding: 0.4rem 0.9rem; border-radius: 999px; background: var(--cat); color: var(--blanc); font-family: var(--f-mono); font-size: 12px; font-weight: 500; letter-spacing: 0.14em; }
.tk-hero h1 { max-width: 58rem; margin: 1.25rem 0 0; font-family: var(--f-texte); font-weight: 400; font-size: clamp(2.3rem, 4.6vw, 4.2rem); line-height: 1.08; letter-spacing: -0.03em; text-wrap: balance; }
.tk-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem; margin: 1.5rem 0 0; font-family: var(--f-mono); font-size: 12.5px; letter-spacing: 0.06em; color: var(--encre-douce); }
.tk-sep { width: 4px; height: 4px; border-radius: 50%; background: var(--cat); }
.tk-une { margin: 3rem 0 0; }
.tk-une img { display: block; width: 100%; max-height: 38rem; object-fit: cover; border-radius: 2rem;
  box-shadow: 0 0 0 1px rgba(255,255,255,0.6), 0 40px 90px -40px color-mix(in srgb, var(--cat) 85%, transparent), 0 0 120px -30px color-mix(in srgb, var(--cat) 60%, transparent); }

.tk-texte { padding-top: 4.5rem; }
.article-body { max-width: 46rem; margin: 0 auto; padding: 3rem 3.5rem; border-radius: 2rem;
  background: linear-gradient(135deg, rgba(255,255,255,0.86), rgba(255,255,255,0.72)); border: 1px solid rgba(255,255,255,0.85);
  backdrop-filter: blur(30px) saturate(140%); -webkit-backdrop-filter: blur(30px) saturate(140%); box-shadow: 0 30px 70px -45px rgba(10,10,18,0.35); }
.article-body > :first-child { margin-top: 0; }
.article-body h2 { margin: 2.6rem 0 0.9rem; font-family: var(--f-texte); font-weight: 600; font-size: clamp(1.5rem, 2.2vw, 1.9rem); line-height: 1.2; letter-spacing: -0.015em; }
.article-body h2::before { content: ""; display: block; width: 2.5rem; height: 3px; margin-bottom: 1rem; border-radius: 3px; background: var(--cat); }
.article-body h3 { margin: 2rem 0 0.6rem; font-weight: 600; font-size: 1.25rem; line-height: 1.3; }
.article-body p, .article-body li { color: #262633; font-size: 1.075rem; line-height: 1.78; }
.article-body p { margin: 0 0 1.15rem; }
.article-body ul, .article-body ol { margin: 0 0 1.3rem; padding-left: 1.3rem; }
.article-body li { margin-bottom: 0.45rem; }
.article-body li::marker { color: var(--cat); }
.article-body strong { color: var(--encre); font-weight: 650; }
.article-body a { color: var(--cat); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.cat-productivite .article-body a { color: #23397a; }
.article-body blockquote { margin: 1.8rem 0; padding: 0.4rem 0 0.4rem 1.4rem; border-left: 3px solid var(--cat); font-family: var(--f-serif); font-style: italic; font-size: 1.45rem; line-height: 1.4; color: var(--encre); }
.article-body table { width: 100%; margin: 1.6rem 0; border-collapse: collapse; font-size: 0.95rem; display: block; overflow-x: auto; }
.article-body th, .article-body td { padding: 0.7rem 0.8rem; border-bottom: 1px solid var(--ligne); text-align: left; vertical-align: top; }
.article-body th { font-family: var(--f-mono); font-size: 11.5px; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--cat); }
.article-body code { font-family: var(--f-mono); font-size: 0.9em; padding: 0.1em 0.35em; border-radius: 0.35em; background: color-mix(in srgb, var(--cat) 8%, white); }
.article-image-wide { margin: 2.2rem -1.5rem; }
.article-image-wide img { display: block; width: 100%; border-radius: 1.4rem; box-shadow: 0 30px 70px -40px color-mix(in srgb, var(--cat) 80%, transparent); }

.tk-bloc { padding-top: 3rem; }
.tk-carte, .tk-partage, .author-box, .tk-studio { max-width: 46rem; margin: 0 auto; border-radius: 2rem; background: rgba(255,255,255,0.78); border: 1px solid rgba(255,255,255,0.85); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px); }
.tk-carte { padding: 2.5rem 3.5rem 1.5rem; }
.tk-carte > h2 { margin: 0 0 0.5rem; font-weight: 400; font-size: clamp(1.8rem, 3vw, 2.4rem); letter-spacing: -0.02em; }
.tk-faq h3 { font-family: var(--f-texte) !important; font-size: 1.1rem !important; font-weight: 600 !important; color: var(--encre); }
.tk-faq p { font-size: 1rem !important; }
.tk-partage { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; padding: 1.4rem 2rem; }
.tk-partage p { margin: 0; font-family: var(--f-serif); font-style: italic; font-size: 1.3rem; }
.tk-bouton-li, .tk-lien-li { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.7rem 1.2rem; border-radius: 999px; background: var(--encre); color: var(--blanc); font-size: 14px; font-weight: 600; text-decoration: none; }
.tk-studio { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 1.2rem; padding: 1.4rem 2rem; text-decoration: none; color: var(--encre); transition: transform 0.2s ease, box-shadow 0.2s ease; }
.tk-studio:hover { transform: translateY(-2px); box-shadow: 0 20px 40px -25px color-mix(in srgb, var(--cat) 70%, transparent); }
.tk-studio-pastille { display: inline-flex; width: 2.6rem; height: 2.6rem; align-items: center; justify-content: center; border-radius: 50%; background: radial-gradient(circle at 34% 28%, #ffffff 0%, #c092b6 18%, #82266e 70%); color: var(--blanc); }
.tk-studio-texte { display: flex; flex-direction: column; gap: 0.2rem; font-size: 14.5px; color: var(--encre-douce); }
.tk-studio-titre { font-weight: 600; color: var(--encre); font-size: 15.5px; }
.tk-studio-lien { font-size: 14px; font-weight: 600; color: #82266e; white-space: nowrap; }
.author-box { display: grid; grid-template-columns: 6.5rem 1fr; gap: 1.6rem; align-items: start; padding: 2rem 2.4rem; }
.author-box img { width: 6.5rem; height: 6.5rem; border-radius: 50%; object-fit: cover; box-shadow: 0 0 0 4px rgba(255,255,255,0.9), 0 0 0 6px var(--cat); }
.author-info h4 { margin: 0; font-size: 1.3rem; font-weight: 600; }
.author-title { margin-top: 0.15rem; font-family: var(--f-mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--cat); }
.author-info p { margin: 0.8rem 0 1rem; color: var(--encre-douce); font-size: 15.5px; }

.tk-lire { max-width: 90rem; }
.section-label { font-family: var(--f-mono); font-size: 12px; letter-spacing: 0.2em; color: var(--cat); text-align: center; }
.section-title { margin: 0.6rem 0 2rem; text-align: center; font-weight: 400; font-size: clamp(1.9rem, 3.2vw, 2.6rem); letter-spacing: -0.02em; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.article-card { display: flex; flex-direction: column; overflow: hidden; border-radius: 1.6rem; background: rgba(255,255,255,0.8); border: 1px solid rgba(255,255,255,0.85); text-decoration: none; color: var(--encre); transition: transform 0.2s ease, box-shadow 0.2s ease; }
.article-card:hover { transform: translateY(-3px); box-shadow: 0 30px 60px -35px color-mix(in srgb, var(--cat) 75%, transparent); }
.card-image { aspect-ratio: 3 / 2; overflow: hidden; background: color-mix(in srgb, var(--cat) 18%, white) !important; }
.card-image img { display: block; width: 100%; height: 100%; object-fit: cover; }
.card-body { display: flex; flex-direction: column; gap: 0.6rem; padding: 1.2rem 1.4rem 1.4rem; }
.card-body .category-badge { margin: 0; align-self: flex-start; padding: 0.3rem 0.7rem; font-size: 10.5px; background: color-mix(in srgb, var(--cat) 12%, white); color: var(--cat); }
.cat-productivite .card-body .category-badge { color: var(--encre); }
.card-title { margin: 0; font-size: 1.12rem; font-weight: 600; line-height: 1.3; }
.card-meta { display: flex; align-items: center; gap: 0.6rem; font-family: var(--f-mono); font-size: 11.5px; color: var(--encre-pale); }

.tk-cta { padding-bottom: 6rem; }
.tk-sombre { max-width: 64rem; margin: 2rem auto 0; padding: 3.5rem; border-radius: 2rem; text-align: center; color: var(--blanc);
  background: radial-gradient(circle at 50% -20%, color-mix(in srgb, var(--cat) 55%, transparent) 0%, transparent 60%), var(--encre); }
.tk-sombre h2 { margin: 0; font-weight: 300; font-size: clamp(2rem, 3.6vw, 3rem); letter-spacing: -0.02em; }
.tk-sombre p { margin: 0.8rem 0 1.8rem; color: rgba(255,255,255,0.75); }
.cta-buttons { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.75rem; }
.btn-white, .btn-white-outline { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.85rem 1.4rem; border-radius: 999px; font-size: 15px; font-weight: 600; text-decoration: none; }
.btn-white { background: var(--blanc); color: var(--encre); }
.btn-white-outline { border: 1px solid rgba(255,255,255,0.35); color: var(--blanc); }

.tk-plus-loin { max-width: 46rem; margin: 0 auto; padding: 1.3rem 1.8rem; border-radius: 1.4rem; background: rgba(255,255,255,0.78); border: 1px solid rgba(255,255,255,0.85); font-size: 15.5px; color: var(--encre-douce); }
.tk-plus-loin-titre { display: block; margin-bottom: 0.3rem; font-family: var(--f-mono); font-size: 11.5px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--cat); }
.tk-plus-loin a { color: var(--encre); font-weight: 600; }

/* Pied de page : même contenu que les pages Nuit */
.tk-pied { position: relative; z-index: 1; padding: 4rem 5rem 2rem; background: var(--encre); color: rgba(255,255,255,0.8); }
.tk-pied-cadre { display: grid; grid-template-columns: 1.2fr 2fr; gap: 3rem; max-width: 80rem; margin: 0 auto; }
.tk-pied-marque img { height: 26px; width: auto; }
.tk-pied-baseline { margin: 1.4rem 0 0.6rem; font-family: var(--f-serif); font-style: italic; font-size: 1.7rem; color: var(--blanc); }
.tk-pied-pitch { margin: 0; max-width: 24rem; font-size: 14.5px; color: rgba(255,255,255,0.65); }
.tk-pied-social { display: flex; gap: 0.6rem; margin-top: 1.4rem; }
.tk-pied-social a { display: inline-flex; width: 2.6rem; height: 2.6rem; align-items: center; justify-content: center; border-radius: 50%; border: 1px solid rgba(255,255,255,0.18); color: var(--blanc); }
.tk-pied-colonnes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.tk-pied-titre { margin: 0 0 0.9rem; font-weight: 600; color: var(--blanc); font-size: 15px; }
.tk-pied ul { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 0.55rem; font-size: 14.5px; }
.tk-pied ul a { text-decoration: none; color: rgba(255,255,255,0.7); } .tk-pied ul a:hover { color: var(--blanc); }
.tk-pied-bas { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; max-width: 80rem; margin: 3rem auto 0; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,0.12); font-size: 13px; color: rgba(255,255,255,0.55); }
.tk-pied-bas a { color: rgba(255,255,255,0.7); text-decoration: none; }
.tk-point { display: inline-block; width: 7px; height: 7px; margin-right: 0.45rem; border-radius: 50%; background: #3ddc97; }

/* Contact : bulle WhatsApp (matière des sphères, pointe de BD) et barre mobile, comme sur les pages Nuit */
.tk-bulle { position: fixed; right: 1.5rem; bottom: 1.5rem; z-index: 45; display: block; width: 4rem; height: 4rem; text-decoration: none; transition: transform 0.2s ease; }
.tk-bulle:hover { transform: scale(1.1); }
/* Pointe de BD retirée (David, 04-10) : masquée ici pour les 110 articles déjà en ligne, retirée du gabarit pour les suivants */
.tk-bulle-pointe { display: none; }
.tk-bulle-rond { position: absolute;
  background: radial-gradient(ellipse 30% 20% at 35% 24%, rgba(255,255,255,0.95) 0%, transparent 72%), radial-gradient(circle at 60% 18%, rgba(255,255,255,0.7) 0%, transparent 9%),
    radial-gradient(ellipse 40% 26% at 64% 86%, rgba(156,245,191,0.55) 0%, transparent 70%), radial-gradient(circle at 36% 30%, #f2fff7 0%, var(--wa-clair) 14%, var(--wa) 50%, var(--wa-fonce) 100%);
  box-shadow: inset -6px -10px 18px rgba(8,122,63,0.7), inset 3px 5px 10px rgba(255,255,255,0.4), 0 18px 36px -12px rgba(8,122,63,0.85), 0 0 0 1px rgba(255,255,255,0.35); }
.tk-bulle-rond { inset: 0; display: flex; align-items: center; justify-content: center; border-radius: 50%; color: var(--blanc); }
.tk-barre-mobile { display: none; }

/* Tablette et téléphone */
@media (max-width: 1279px) {
  .tk-nav, .tk-cta-entete { display: none; }
  .tk-burger { display: block; justify-self: end; }
  .tk-entete { grid-template-columns: 1fr auto; padding: 0 1.25rem; height: 4.5rem; background: rgba(240,241,246,0.72); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); }
  .tk-bulle { display: none; }
  .tk-barre-mobile { position: fixed; inset: auto 0 0 0; z-index: 45; display: flex; align-items: center; gap: 0.75rem; padding: 0.5rem 1rem calc(0.5rem + env(safe-area-inset-bottom, 0px));
    background: rgba(255,255,255,0.8); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); border-top: 1px solid var(--ligne); }
  .tk-barre-bilan { flex: 1; padding: 0.9rem 1rem; border-radius: 999px; text-align: center; font-weight: 600; text-decoration: none; color: var(--blanc);
    background: radial-gradient(circle at 50% 28%, color-mix(in srgb, var(--cat) 75%, white) 0%, var(--cat) 48%, color-mix(in srgb, var(--cat) 70%, black) 100%); }
  .tk-barre-mobile .tk-bulle { position: relative; display: block; right: auto; bottom: auto; width: 3rem; height: 3rem; flex: none; }
  .tk-pied { padding-bottom: 6.5rem; }
}
@media (max-width: 900px) {
  .tk-cadre, .tk-texte, .tk-bloc { padding-left: 1.25rem; padding-right: 1.25rem; }
  .tk-hero { padding-top: 6.5rem; }
  .article-body { padding: 2rem 1.4rem; border-radius: 1.5rem; }
  .article-image-wide { margin: 1.6rem 0; }
  .tk-carte { padding: 2rem 1.4rem 1rem; }
  .author-box { grid-template-columns: 1fr; padding: 1.6rem 1.4rem; }
  .tk-studio { grid-template-columns: auto 1fr; } .tk-studio-lien { grid-column: 2; }
  .related-grid { grid-template-columns: 1fr; }
  .tk-sombre { padding: 2.5rem 1.4rem; }
  .tk-pied { padding: 3rem 1.25rem 6.5rem; }
  .tk-pied-cadre, .tk-pied-colonnes { grid-template-columns: 1fr; gap: 2rem; }
  .tk-sphere.s1 { width: 170px; height: 170px; right: -70px; } .tk-sphere.s2, .tk-sphere.s3 { display: none; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }

/* ───────── Index du blog (ADR-0042) : à la une, filtres, grille paginée, une couleur par carte ───────── */
.tk-eyebrow { display: inline-flex; align-items: center; gap: 0.5rem; font-family: var(--f-mono); font-size: 12px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--cat); }
.tk-eyebrow::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--cat); }
.tk-index-hero { display: grid; grid-template-columns: 5fr 7fr; gap: 3rem; align-items: center; padding-top: 2rem; }
.tk-index-titre h1 { margin: 1.4rem 0 0; font-weight: 400; font-size: clamp(2.8rem, 5.6vw, 5rem); line-height: 1.05; letter-spacing: -0.03em; }
.tk-index-titre h1 em { display: block; font-family: var(--f-serif); font-style: italic; font-weight: 400; color: var(--cat); letter-spacing: -0.01em; }
.tk-chapo { max-width: 30rem; margin: 1.5rem 0 0; font-size: 1.1rem; color: var(--encre-douce); }
.tk-une-carte { display: grid; grid-template-rows: auto 1fr; overflow: hidden; border-radius: 2rem; background: rgba(255,255,255,0.82); border: 1px solid rgba(255,255,255,0.85);
  text-decoration: none; color: var(--encre); box-shadow: 0 40px 90px -45px color-mix(in srgb, var(--cat) 80%, transparent); transition: transform 0.2s ease; }
.tk-une-carte:hover { transform: translateY(-3px); }
.tk-une-image { aspect-ratio: 16 / 8; overflow: hidden; background: color-mix(in srgb, var(--cat) 18%, white); }
.tk-une-image img { display: block; width: 100%; height: 100%; object-fit: cover; }
.tk-une-texte { padding: 1.8rem 2.2rem 2rem; }
.tk-une-texte .category-badge { margin: 0; }
.tk-une-texte h2 { margin: 1rem 0 0.6rem; font-weight: 600; font-size: clamp(1.5rem, 2.4vw, 2rem); line-height: 1.2; letter-spacing: -0.015em; }
.tk-une-texte p { margin: 0; color: var(--encre-douce); }
.tk-une-texte .tk-meta { margin-top: 1rem; }
.tk-lire-lien { display: inline-flex; margin-top: 1.2rem; font-weight: 600; color: var(--cat); }
.tk-index-grille { padding-top: 5rem; }
.tk-index-entete { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 1.5rem; margin-bottom: 2rem; }
.tk-index-entete .section-title { margin: 0.6rem 0 0; text-align: left; }
.tk-index-entete .section-title em { font-family: var(--f-serif); font-style: italic; color: var(--cat); }
.tk-filtres { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tk-filtre { display: inline-flex; align-items: center; gap: 0.45rem; padding: 0.55rem 1rem; border-radius: 999px; border: 1px solid var(--ligne); background: rgba(255,255,255,0.7); cursor: pointer;
  font-family: var(--f-texte); font-size: 14px; font-weight: 500; color: var(--encre); transition: background-color 0.2s ease, color 0.2s ease; }
.tk-filtre span { font-family: var(--f-mono); font-size: 11.5px; color: var(--encre-pale); }
.tk-filtre:hover { background: color-mix(in srgb, var(--cat) 12%, white); }
.tk-filtre.tk-actif { background: var(--cat); border-color: var(--cat); color: var(--blanc); }
.tk-filtre.tk-actif span { color: rgba(255,255,255,0.75); }
.tk-grille { grid-template-columns: repeat(3, 1fr); }
.tk-grille .article-card[hidden] { display: none; }
.card-excerpt { margin: 0; font-size: 14.5px; line-height: 1.6; color: var(--encre-douce); }
.article-card.cat-productivite { background: var(--encre); border-color: var(--encre); color: var(--blanc); }
.article-card.cat-productivite .card-excerpt, .article-card.cat-productivite .card-meta { color: rgba(255,255,255,0.7); }
.article-card.cat-productivite .category-badge { background: rgba(255,255,255,0.14); color: var(--blanc); }
.article-card.cat-productivite .card-image { background: #23233a !important; }
.tk-pagination { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.5rem; margin-top: 2.5rem; }
.tk-page { width: 2.6rem; height: 2.6rem; border-radius: 50%; border: 1px solid var(--ligne); background: rgba(255,255,255,0.75); cursor: pointer; font-family: var(--f-mono); font-size: 13px; color: var(--encre); }
.tk-page.tk-actif { background: var(--encre); border-color: var(--encre); color: var(--blanc); }
@media (max-width: 1100px) { .tk-index-hero { grid-template-columns: 1fr; } .tk-grille { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 900px) { .tk-grille { grid-template-columns: 1fr; } .tk-une-texte { padding: 1.4rem; } }