/* Page /articles — styles propres, tous préfixés par .articles-index */
.articles-index{--ai-wrap:min(var(--wrap),calc(100% - 2*var(--gutter)));overflow-x:clip}
.articles-index [hidden]{display:none!important}
.articles-index h1,.articles-index h2,.articles-index h3,.articles-index p{margin:0}

/* En-tête de page */
.articles-index .ai-hero{width:var(--ai-wrap);margin:34px auto 0;display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);grid-template-areas:"copy art" "paths paths";gap:28px 40px;align-items:center;position:relative;isolation:isolate}
.articles-index .ai-hero:before{content:"";position:absolute;z-index:-2;inset:-60px -12% 20% 34%;background:radial-gradient(ellipse at 62% 46%,#dbe7ff 0,#eef4ffaa 38%,#fff0 70%);pointer-events:none}
.articles-index .ai-hero__copy{grid-area:copy;padding-block:18px}
.articles-index .ai-hero h1{margin:22px 0 24px;font-size:clamp(36px,5.1vw,64px);font-weight:450;line-height:1.06;letter-spacing:-.05em;color:var(--ink);max-width:14ch}
.articles-index .ai-mark{background:var(--blue);color:#fff;padding:0 .16em .05em;border-radius:.2em;-webkit-box-decoration-break:clone;box-decoration-break:clone;box-shadow:0 10px 24px #335cff33,inset 0 1px 1px #ffffff70}
.articles-index .ai-lead{font-size:clamp(18px,1.6vw,20px);line-height:1.6;letter-spacing:-.02em;color:var(--ink-2);max-width:60ch}
.articles-index .ai-intro{margin-top:16px;font-size:15.5px;line-height:1.7;color:var(--muted);max-width:62ch}
.articles-index .ai-hero__art{grid-area:art;position:relative;margin:0;align-self:stretch;display:grid;place-items:center}
.articles-index .ai-hero__art img{display:block;width:100%;height:auto;-webkit-mask-image:radial-gradient(ellipse 70% 68% at 54% 50%,#000 58%,#0000 100%);mask-image:radial-gradient(ellipse 70% 68% at 54% 50%,#000 58%,#0000 100%)}
.articles-index .ai-hero__lines{position:absolute;z-index:-1;inset:auto -10% -6% -30%;width:140%;height:auto;fill:none;stroke:#335cff;stroke-width:1;opacity:.28}

/* Accès : méthode, auteur, contact */
.articles-index .ai-paths{grid-area:paths;list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.articles-index .ai-path{position:relative;display:grid;gap:4px;align-content:start;height:100%;padding:20px 52px 22px 22px;border:1px solid #d3e0fa;border-radius:20px;background:var(--glass);box-shadow:inset 0 1px 2px #fff,0 10px 28px #335cff0f;text-decoration:none;color:var(--ink);transition:border-color .2s,transform .25s var(--ease),box-shadow .25s}
.articles-index .ai-path:hover{border-color:#9db8fb;transform:translateY(-2px);box-shadow:inset 0 1px 2px #fff,0 16px 34px #335cff1f}
.articles-index .ai-path__kicker{font-size:13px;font-weight:500;color:#3a5bc4}
.articles-index .ai-path b{font-size:18px;font-weight:550;letter-spacing:-.025em;line-height:1.3}
.articles-index .ai-path__text{font-size:14.5px;line-height:1.55;color:var(--muted)}
.articles-index .ai-path__arrow{position:absolute;top:18px;right:20px;font-size:19px;color:var(--blue);line-height:1}
.articles-index .ai-path--author{grid-template-columns:56px minmax(0,1fr);column-gap:14px}
.articles-index .ai-path--author img{grid-row:1/span 3;width:56px;height:56px;border-radius:50%;object-fit:cover;background:var(--blue-soft);box-shadow:0 0 0 3px #fff,0 0 0 4px #c8d8fb}
.articles-index .ai-path--contact{background:linear-gradient(140deg,#335cff,#2447e0);border-color:#4268fc;color:#fff;box-shadow:0 12px 28px #264cd02e,inset 0 1px 1px #ffffff60}
.articles-index .ai-path--contact:hover{border-color:#fff8}
.articles-index .ai-path--contact .ai-path__kicker,.articles-index .ai-path--contact .ai-path__text,.articles-index .ai-path--contact .ai-path__arrow{color:#fff}

/* Liste et filtres */
.articles-index .ai-browse{width:var(--ai-wrap);margin:84px auto 0;scroll-margin-top:24px}
.articles-index .ai-browse__head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:8px 24px}
.articles-index .ai-browse__title{font-size:clamp(26px,3vw,36px);font-weight:450;letter-spacing:-.04em;line-height:1.15}
.articles-index .ai-status{font-size:14.5px;color:var(--muted)}
.articles-index .ai-filters{margin-top:18px;padding:12px;border:1px solid var(--line);border-radius:24px;background:#f7faffeb;-webkit-backdrop-filter:saturate(1.4) blur(12px);backdrop-filter:saturate(1.4) blur(12px)}
.articles-index .ai-filters ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.articles-index .ai-tag{display:inline-flex;align-items:center;gap:8px;min-height:40px;padding:7px 9px 7px 15px;border:1px solid #c9d8f8;border-radius:999px;background:#fff;color:var(--ink-2);font-size:14px;font-weight:500;line-height:1.2;text-decoration:none;cursor:pointer;transition:background .2s,border-color .2s,color .2s}
.articles-index .ai-tag:hover{border-color:var(--blue);color:var(--blue)}
.articles-index .ai-tag__n{min-width:24px;padding:2px 7px;border-radius:999px;background:var(--blue-soft);color:#2848c8;font-size:12px;font-weight:600;text-align:center}
.articles-index .ai-tag--all{font-weight:600}
.articles-index .ai-tag[aria-pressed=true]{background:var(--blue);border-color:var(--blue);color:#fff;box-shadow:0 6px 14px #335cff38}
.articles-index .ai-tag[aria-pressed=true]:before{content:"✓";font-size:13px;line-height:1}
.articles-index .ai-tag[aria-pressed=true] .ai-tag__n{background:#fff;color:var(--blue-deep)}

.articles-index .ai-groups{margin-top:12px}
.articles-index .ai-groups:focus{outline:none}
.articles-index .ai-group{display:grid;grid-template-columns:minmax(220px,290px) minmax(0,1fr);gap:24px 48px;padding:44px 0;border-bottom:1px solid var(--line);scroll-margin-top:110px}
.articles-index .ai-group:last-child{border-bottom:0}
.articles-index .ai-group__head h2{font-size:clamp(23px,2.3vw,28px);font-weight:500;letter-spacing:-.035em;line-height:1.15}
.articles-index .ai-group__head p{margin-top:10px;font-size:15px;line-height:1.6;color:var(--muted)}
.articles-index .ai-group__head .ai-group__count{display:inline-block;margin-top:14px;padding:4px 11px;border:1px solid #c9d8f8;border-radius:999px;background:var(--blue-mist);color:#294ca7;font-size:12.5px;font-weight:500}

.articles-index .ai-cat{font-size:12.5px;font-weight:500;color:#3a5bc4;letter-spacing:.005em}
.articles-index .ai-summary{font-size:15px;line-height:1.6;color:var(--muted)}

/* Articles principaux : cartes avec visuel */
.articles-index .ai-features{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.articles-index .ai-feature article{position:relative;height:100%;display:flex;flex-direction:column;overflow:hidden;border:1px solid var(--line);border-radius:22px;background:#fff;box-shadow:0 12px 30px #335cff12;transition:border-color .2s,transform .25s var(--ease),box-shadow .25s}
.articles-index .ai-feature article:not(:has(.ai-feature__media)){background:var(--glass)}
.articles-index .ai-feature article:hover{border-color:#a9c1fb;transform:translateY(-3px);box-shadow:0 18px 38px #335cff21}
.articles-index .ai-feature article:has(a:focus-visible),.articles-index .ai-row article:has(a:focus-visible){outline:3px solid var(--blue);outline-offset:4px}
.articles-index .ai-feature a:focus-visible,.articles-index .ai-row a:focus-visible{outline:none}
.articles-index .ai-feature__media{display:block;aspect-ratio:16/10;background:var(--blue-mist);border-bottom:1px solid var(--line)}
.articles-index .ai-feature__media img{display:block;width:100%;height:100%;object-fit:cover}
.articles-index .ai-feature__body{flex:1;display:flex;flex-direction:column;gap:8px;padding:20px 22px 22px}
.articles-index .ai-feature h3{font-size:20px;font-weight:550;line-height:1.28;letter-spacing:-.025em}
.articles-index .ai-feature h3 a,.articles-index .ai-row h3 a{text-decoration:none;color:var(--ink)}
.articles-index .ai-feature h3 a:after,.articles-index .ai-row h3 a:after{content:"";position:absolute;inset:0;z-index:1}
.articles-index .ai-more{margin-top:auto;padding-top:8px;display:inline-flex;gap:10px;font-size:14px;font-weight:500;color:var(--blue)}
.articles-index .ai-feature article:hover .ai-more span{transform:translateX(3px)}
.articles-index .ai-more span{transition:transform .25s var(--ease)}
.articles-index .ai-features.is-single{grid-template-columns:minmax(0,1fr)}
.articles-index .ai-features>li,.articles-index .ai-features article,.articles-index .ai-group>*{min-width:0}
.articles-index .ai-features.is-single article{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
.articles-index .ai-features.is-single .ai-feature__media{aspect-ratio:auto;min-height:100%;border-bottom:0;border-right:1px solid var(--line)}
.articles-index .ai-features.is-single article:not(:has(.ai-feature__media)){grid-template-columns:minmax(0,1fr)}
.articles-index .ai-features.is-single .ai-feature__body{justify-content:center;padding:28px}

/* Questions et variantes : lignes compactes */
.articles-index .ai-rows{list-style:none;margin:0;padding:0}
.articles-index .ai-features+.ai-rows{margin-top:22px}
.articles-index .ai-row article{position:relative;display:grid;grid-template-columns:112px minmax(0,1fr) 28px;gap:18px;align-items:center;padding:18px 6px;border-bottom:1px solid var(--line)}
.articles-index .ai-row:first-child article{border-top:1px solid var(--line)}
.articles-index .ai-row:not(.has-thumb) article{grid-template-columns:minmax(0,1fr) 28px}
.articles-index .ai-row__thumb{display:block;aspect-ratio:3/2;border-radius:12px;overflow:hidden;background:var(--blue-mist);border:1px solid var(--line)}
.articles-index .ai-row__thumb img{display:block;width:100%;height:100%;object-fit:cover}
.articles-index .ai-row__body{display:grid;gap:4px}
.articles-index .ai-row h3{font-size:17.5px;font-weight:550;line-height:1.35;letter-spacing:-.02em}
.articles-index .ai-row .ai-summary{font-size:14.5px}
.articles-index .ai-row__arrow{font-size:20px;color:var(--blue);transition:transform .25s var(--ease)}
.articles-index .ai-row article:hover h3 a{color:var(--blue)}
.articles-index .ai-row article:hover .ai-row__arrow{transform:translateX(4px)}

.articles-index .ai-empty{display:flex;flex-wrap:wrap;align-items:center;gap:12px 18px;padding:22px 24px;border:1px dashed #b9cdf8;border-radius:18px;background:var(--blue-mist);color:var(--ink-2);font-size:15px}
.articles-index .ai-empty .m-pill{cursor:pointer}
.articles-index .ai-related{margin-top:16px;font-size:14px;line-height:1.6;color:var(--muted)}
.articles-index .ai-related a{color:var(--blue);text-underline-offset:3px}

@media(min-width:1100px){
  .articles-index .ai-features.count-3{grid-template-columns:repeat(3,minmax(0,1fr))}
  .articles-index .ai-features.count-3 h3{font-size:18.5px}
}
@media(min-width:641px) and (max-width:1099px){
  .articles-index .ai-features.count-3>li:first-child{grid-column:1/-1}
  .articles-index .ai-features.count-3>li:first-child article:has(.ai-feature__media){display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .articles-index .ai-features.count-3>li:first-child .ai-feature__media{aspect-ratio:auto;min-height:100%;border-bottom:0;border-right:1px solid var(--line)}
  .articles-index .ai-features.count-3>li:first-child .ai-feature__body{justify-content:center;padding:26px}
}
@media(min-width:1024px){
  .articles-index .ai-filters{position:sticky;top:86px;z-index:5}
  .articles-index .ai-group{scroll-margin-top:200px}
}
@media(max-width:1023px){
  .articles-index .ai-paths{grid-template-columns:1fr;gap:12px}
}
@media(max-width:900px){
  .articles-index .ai-hero{grid-template-columns:1fr;grid-template-areas:"copy" "art" "paths";gap:8px;margin-top:22px}
  .articles-index .ai-hero__copy{padding-block:6px 0}
  .articles-index .ai-hero__art{max-width:520px;width:100%;justify-self:center}
  .articles-index .ai-hero:before{inset:30% -30% 30% -10%}
  .articles-index .ai-paths{margin-top:8px}
  .articles-index .ai-browse{margin-top:64px}
  .articles-index .ai-group{grid-template-columns:minmax(0,1fr);gap:20px;padding:34px 0}
}
@media(max-width:640px){
  .articles-index .ai-hero h1{margin:18px 0 18px}
  .articles-index .ai-features{grid-template-columns:1fr}
  .articles-index .ai-features.is-single article{display:flex}
  .articles-index .ai-features.is-single .ai-feature__media{aspect-ratio:16/10;border-right:0;border-bottom:1px solid var(--line)}
  .articles-index .ai-features.is-single .ai-feature__body{padding:20px 22px 22px}
  .articles-index .ai-row article{grid-template-columns:76px minmax(0,1fr);gap:14px;align-items:start;padding:16px 2px}
  .articles-index .ai-row:not(.has-thumb) article{grid-template-columns:minmax(0,1fr)}
  .articles-index .ai-row__arrow{display:none}
  .articles-index .ai-row h3{font-size:16.5px}
  .articles-index .ai-filters{padding:8px 0;border-radius:20px;overflow:hidden}
  .articles-index .ai-filters ul{position:relative;flex-wrap:nowrap;overflow-x:auto;overscroll-behavior-x:contain;scroll-padding-inline:10px;padding:8px 10px;scrollbar-width:none;-webkit-mask-image:linear-gradient(90deg,#000 88%,#0000);mask-image:linear-gradient(90deg,#000 88%,#0000)}
  .articles-index .ai-filters ul::-webkit-scrollbar{display:none}
  .articles-index .ai-filters li{flex:none}
  .articles-index .ai-filters li:last-child{padding-right:36px}
  .articles-index .ai-hero__art{max-width:320px}
  .articles-index .ai-tag{font-size:13.5px;padding:6px 8px 6px 13px;min-height:38px}
}