/* Socle commun aux deux sites — structure de quotidien : bandeau sombre, sous-barre de rubriques,
   une en colonnes separees par des filets d'un pixel. Aucune ombre, aucun angle arrondi.
   L'identite tient entierement dans les variables du fichier de theme. */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);
  font-family:var(--font-body);font-size:16px;line-height:1.5;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.08;letter-spacing:var(--head-tracking);
  font-family:var(--font-head)}
p{margin:0}
::selection{background:var(--accent);color:#fff}

.wrap{max-width:1260px;margin:0 auto;padding:0 20px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- bandeau d'edition ---------- */
.edition{background:var(--edition-bg);color:var(--edition-fg);border-bottom:1px solid var(--edition-line)}
.edition .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px;
  font-family:var(--font-ui);font-size:12px}
.edition-tag{opacity:.8;letter-spacing:.04em}
.langs{display:flex;gap:0;flex-wrap:wrap;align-items:center}
.langs a{padding:6px 10px;opacity:.78;border-left:1px solid var(--edition-line);transition:.12s}
.langs a:first-child{border-left:0}
.langs a:hover{opacity:1;text-decoration:underline;text-underline-offset:3px}
.langs a.on{opacity:1;font-weight:700;color:var(--edition-strong)}

/* ---------- bandeau-titre ---------- */
.masthead{background:var(--masthead-bg);color:var(--masthead-fg)}
.masthead .wrap{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  padding-top:16px;padding-bottom:0;min-height:118px}
.pillars{display:flex;align-items:stretch;margin:0;padding:0;list-style:none}
.pillar{position:relative}
.pillar > a{display:block;font-family:var(--font-head);font-size:clamp(20px,2.4vw,28px);font-weight:700;
  letter-spacing:-.01em;padding:14px 18px 16px 0;margin-right:18px;
  border-right:1px solid var(--masthead-line);white-space:nowrap}
.pillar:last-child > a{border-right:0}
.pillar > a::after{content:"";position:absolute;left:0;right:18px;bottom:0;height:4px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .18s}
.pillar:hover > a::after,.pillar.on > a::after{transform:scaleX(1)}
.brandmark{display:flex;align-items:center;padding-bottom:14px;flex:0 0 auto}
.brandmark img{height:var(--logo-h);width:auto;background:var(--logo-plate);
  padding:var(--logo-pad);border-radius:var(--logo-radius)}
.mast-tools{display:flex;align-items:center;gap:4px;margin-left:auto;padding-bottom:16px}
.icon-btn{border:0;background:none;color:inherit;cursor:pointer;padding:8px;display:flex;
  border:1px solid var(--masthead-line)}
.icon-btn:hover{background:var(--masthead-hover)}
.icon-btn svg{width:18px;height:18px}
.burger{display:none}

/* ---------- sous-barre des rubriques ---------- */
.subnav{background:var(--subnav-bg);color:var(--subnav-fg);border-bottom:1px solid var(--subnav-line)}
.subnav .wrap{display:flex;gap:0;flex-wrap:wrap;scrollbar-width:none}
.subnav .wrap::-webkit-scrollbar{display:none}
.subnav a{font-family:var(--font-ui);font-size:13px;padding:9px 14px 10px;white-space:nowrap;
  border-right:1px solid var(--subnav-line);opacity:.9}
.subnav a:first-child{padding-left:0}
.subnav a:hover{opacity:1;text-decoration:underline;text-underline-offset:3px}
.subnav a.on{font-weight:700;box-shadow:inset 0 -3px 0 var(--accent)}

/* ---------- conteneurs de la une ---------- */
.container{border-top:1px solid var(--rule-strong);padding:8px 0 26px}
.container:first-of-type{border-top:0}
.container .wrap{display:grid;grid-template-columns:var(--rail) 1fr;gap:0}
.rail{padding:8px 16px 0 0}
.rail h2{font-family:var(--font-head);font-size:22px;line-height:1.1}
.rail h2 a:hover{color:var(--accent)}
.rail .num{font-family:var(--font-ui);font-size:11px;letter-spacing:.14em;color:var(--muted);
  display:block;margin-bottom:5px}
.rail .see{font-family:var(--font-ui);font-size:12.5px;color:var(--accent);display:inline-block;
  margin-top:10px}
.rail .see:hover{text-decoration:underline;text-underline-offset:3px}
.rail p{font-family:var(--font-ui);font-size:12.5px;color:var(--muted);margin-top:9px;line-height:1.4}

.cols{display:grid;gap:0}
.c-lead{grid-template-columns:1.55fr 1fr}
.c-2{grid-template-columns:repeat(2,1fr)}
.c-3{grid-template-columns:repeat(3,1fr)}
.c-4{grid-template-columns:repeat(4,1fr)}
.c-5{grid-template-columns:repeat(5,1fr)}
/* Cinq colonnes : le titre de rubrique coiffe chaque colonne, comme une manchette. */
.col > .col-head{display:block;font-family:var(--font-ui);font-size:12px;font-weight:700;
  letter-spacing:.03em;text-transform:uppercase;color:var(--text);padding-bottom:7px;
  margin-bottom:10px;border-bottom:2px solid var(--accent);line-height:1.2}
.col > .col-head:hover{text-decoration:underline;text-underline-offset:3px}
.c-5 .story h3{font-size:17px}
.c-5 .brief a{font-size:14.5px}
.col{border-left:1px solid var(--rule);padding:8px 14px 0}
.col:first-child{padding-left:0;border-left:0}
.col-stack{display:flex;flex-direction:column}
.col-stack > * + *{border-top:1px solid var(--rule);margin-top:14px;padding-top:14px}

/* ---------- article dans la grille ---------- */
.story{display:block}
.story + .story{border-top:1px solid var(--rule);margin-top:14px;padding-top:14px}
.kicker{font-family:var(--font-ui);font-size:13px;font-weight:700;color:var(--accent);
  display:block;margin-bottom:3px}
.story h3{font-family:var(--font-head);line-height:1.12;font-size:19px;margin-bottom:6px}
.story:hover h3{text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.story .stand{font-size:14.5px;color:var(--muted);line-height:1.42;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.story .shot{margin-bottom:10px;background:var(--surface)}
.story .shot img{width:100%;aspect-ratio:5/3;object-fit:cover}
.story .when{font-family:var(--font-ui);font-size:11.5px;color:var(--muted);
  margin-top:9px;padding-top:7px;border-top:1px solid var(--rule);display:inline-block}
.story.big{display:grid;grid-template-columns:1fr 1.15fr;gap:0 18px;align-items:start}
.story.big .shot{grid-column:2;grid-row:1/span 4;margin-bottom:0;align-self:stretch;
  min-height:100%;overflow:hidden}
.story.big .shot img{width:100%;height:100%;min-height:340px;aspect-ratio:auto;object-fit:cover}
.story.big .kicker,.story.big h3,.story.big .stand,.story.big .when{grid-column:1}
.story.big h3{font-size:clamp(26px,2.9vw,40px);margin-bottom:10px}
.story.big .stand{font-size:16.5px;-webkit-line-clamp:4}
.story.big .kicker{font-size:15px}
.story.mid h3{font-size:22px}

/* liste seche, sans image : la colonne des breves */
.brief{list-style:none;margin:0;padding:0}
.brief li{border-top:1px solid var(--rule);padding:11px 0}
.brief li:first-child{border-top:0;padding-top:2px}
.brief a{display:block;font-family:var(--font-head);font-size:16px;line-height:1.2}
.brief a:hover{text-decoration:underline;text-underline-offset:3px}
.brief .kicker{font-size:12px;margin-bottom:2px}

/* ---------- recherche ---------- */
.searchbar{display:none;background:var(--surface);border-bottom:1px solid var(--rule-strong)}
.searchbar.on{display:block}
.searchbar .wrap{padding-top:14px;padding-bottom:14px}
.search-row{display:flex;align-items:center;gap:12px}
.search-row svg{width:20px;height:20px;color:var(--muted);flex:0 0 auto}
.searchbar input{flex:1;border:0;background:none;color:inherit;font-family:var(--font-head);
  font-size:24px;font-weight:700;outline:none;padding:6px 0}
.searchbar input::placeholder{color:var(--muted);font-weight:400}
#searchOut{list-style:none;margin:10px 0 0;padding:0}
#searchOut li a{display:block;padding:9px 0;border-top:1px solid var(--rule);
  font-family:var(--font-head);font-size:17px}
#searchOut li a:hover{text-decoration:underline;text-underline-offset:3px}
#searchOut .k{font-family:var(--font-ui);font-size:12px;color:var(--accent);display:block;
  font-weight:700;margin-bottom:2px}

/* ---------- page d'article ---------- */
.piece{padding:22px 0 60px}
.piece .wrap{display:grid;grid-template-columns:var(--rail) minmax(0,660px) 1fr;gap:0}
.piece-head{grid-column:1/-1;border-bottom:1px solid var(--rule-strong);padding-bottom:18px;
  margin-bottom:18px}
.piece-head .kicker{font-size:15px;margin-bottom:8px}
.piece-head h1{font-family:var(--font-head);font-size:clamp(30px,4.4vw,52px);line-height:1.05;
  max-width:19ch}
.piece-head .stand{font-family:var(--font-body);font-size:20px;line-height:1.45;color:var(--muted);
  margin-top:16px;max-width:56ch}
.piece-rail{padding:2px 16px 0 0;border-right:1px solid var(--rule)}
.piece-rail .line{font-family:var(--font-ui);font-size:12.5px;color:var(--muted);
  padding:9px 0;border-top:1px solid var(--rule)}
.piece-rail .line:first-child{border-top:0;padding-top:0}
.piece-rail .line b{display:block;color:var(--text);font-weight:700;margin-bottom:2px}
.piece-body{padding:0 24px}
.piece-figure{grid-column:2/-1;margin:0 0 22px;padding-left:24px}
.piece-figure img{width:100%;aspect-ratio:5/3;object-fit:cover}
.piece-figure figcaption{font-family:var(--font-ui);font-size:12px;color:var(--muted);
  padding-top:7px;border-top:1px solid var(--rule);margin-top:7px}

.body{font-size:18px;line-height:1.62}
.body p{margin:0 0 1.15em}
.body h2{font-family:var(--font-head);font-size:24px;line-height:1.15;margin:34px 0 12px}
.body ul{margin:0 0 1.2em;padding-left:0;list-style:none}
.body li{position:relative;padding-left:20px;margin-bottom:.5em}
.body li::before{content:"";position:absolute;left:0;top:.62em;width:9px;height:9px;
  background:var(--accent)}
.body a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.body figure{margin:30px 0}
.body figure img{width:100%}
.sources{margin-top:38px;padding-top:16px;border-top:1px solid var(--rule-strong)}
.sources h2{font-family:var(--font-ui);font-size:12.5px;font-weight:700;letter-spacing:.12em;
  text-transform:uppercase;margin-bottom:10px}
.sources ol{margin:0;padding-left:18px;font-size:15px;color:var(--muted)}
.sources li{margin-bottom:6px}
.sources a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.alt-langs{margin-top:26px;padding-top:14px;border-top:1px solid var(--rule);
  font-family:var(--font-ui);font-size:12.5px;display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.alt-langs span{color:var(--muted)}
.alt-langs a{padding:5px 10px;border:1px solid var(--rule-strong)}
.alt-langs a:hover{border-color:var(--accent);color:var(--accent)}
.credit{margin-top:18px;font-family:var(--font-ui);font-size:12px;color:var(--muted);
  word-break:break-word}

/* ---------- pages de rubrique et pages fixes ---------- */
.pagehead{border-bottom:1px solid var(--rule-strong);padding:22px 0 16px}
.pagehead .kicker{font-size:14px}
.pagehead h1{font-family:var(--font-head);font-size:clamp(30px,4vw,46px);line-height:1.05}
.pagehead .stand{font-size:17px;color:var(--muted);margin-top:12px;max-width:72ch}
.chips{display:flex;gap:0;flex-wrap:wrap;padding:14px 0;border-bottom:1px solid var(--rule)}
.chip{font-family:var(--font-ui);font-size:12.5px;padding:7px 12px;color:var(--muted);
  border:1px solid var(--rule-strong);margin:0 -1px -1px 0;background:none;cursor:pointer}
.chip:hover{color:var(--accent);border-color:var(--accent);position:relative;z-index:1}
.chip.on{background:var(--accent);border-color:var(--accent);color:#fff}
.filter-in{width:100%;max-width:440px;padding:11px 13px;border:1px solid var(--rule-strong);
  background:var(--bg);color:inherit;font-family:var(--font-body);font-size:15px;outline:none;
  margin:18px 0 6px}
.filter-in:focus{border-color:var(--accent)}
.count{font-family:var(--font-ui);font-size:12px;color:var(--muted);margin:0 0 18px}
.grid-list{display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border-top:1px solid var(--rule-strong)}
.grid-list .story{border-left:1px solid var(--rule);padding:16px 14px 20px}
.grid-list .story:nth-child(4n+1){border-left:0;padding-left:0}
.grid-list .story:nth-child(n+5){border-top:1px solid var(--rule)}
.grid-list .story + .story{margin-top:0;padding-top:16px;border-top:0}
.grid-list .story:nth-child(n+5){padding-top:16px}

.page{padding:0 0 60px}
.page .wrap-text{max-width:720px;margin:0;padding:26px 0 0}
.squares{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:34px;
  border-top:1px solid var(--rule-strong)}
.square{border-left:1px solid var(--rule);padding:16px 14px 22px}
.square:first-child{border-left:0;padding-left:0}
.square h3{font-family:var(--font-head);font-size:17px;margin-bottom:8px}
.square p{font-size:14.5px;color:var(--muted);line-height:1.45}

/* ---------- pied ---------- */
.foot{background:var(--foot-bg);color:var(--foot-fg);padding:40px 0 26px;
  border-top:4px solid var(--accent)}
.foot .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.foot > .wrap > div{border-left:1px solid var(--foot-line);padding:0 16px}
.foot > .wrap > div:first-child{border-left:0;padding-left:0}
.foot h4{font-family:var(--font-ui);font-size:12px;font-weight:700;letter-spacing:.1em;
  text-transform:uppercase;margin-bottom:12px}
.foot ul{list-style:none;margin:0;padding:0}
.foot li a{display:block;padding:4px 0;font-family:var(--font-ui);font-size:13.5px;color:var(--foot-muted)}
.foot li a:hover{color:var(--foot-fg);text-decoration:underline;text-underline-offset:3px}
.foot img{height:30px;width:auto;margin-bottom:14px;background:var(--logo-plate);
  padding:var(--logo-pad);border-radius:var(--logo-radius)}
.foot p{font-family:var(--font-ui);font-size:13px;color:var(--foot-muted);line-height:1.45}
.foot-bottom{border-top:1px solid var(--foot-line);margin-top:28px;padding-top:16px;
  font-family:var(--font-ui);font-size:12px;color:var(--foot-muted);display:flex;
  justify-content:space-between;gap:14px;flex-wrap:wrap}

/* ---------- petits ecrans ---------- */
@media (max-width:1080px){
  :root{--rail:120px}
  .c-4,.c-5{grid-template-columns:repeat(2,1fr)}
  .c-4 .col:nth-child(odd),.c-5 .col:nth-child(odd){border-left:0;padding-left:0}
  .c-4 .col:nth-child(n+3),.c-5 .col:nth-child(n+3){border-top:1px solid var(--rule);
    margin-top:14px;padding-top:14px}
  .grid-list{grid-template-columns:repeat(2,1fr)}
  .grid-list .story:nth-child(4n+1){border-left:1px solid var(--rule);padding-left:14px}
  .grid-list .story:nth-child(odd){border-left:0;padding-left:0}
  .grid-list .story:nth-child(n+3){border-top:1px solid var(--rule)}
  .squares{grid-template-columns:repeat(2,1fr)}
  .square:nth-child(odd){border-left:0;padding-left:0}
  .square:nth-child(n+3){border-top:1px solid var(--rule)}
  .piece .wrap{grid-template-columns:var(--rail) minmax(0,1fr)}
  .piece-figure{padding-left:24px}
}
@media (max-width:820px){
  :root{--rail:0px}
  .wrap{padding:0 16px}
  .subnav .wrap{flex-wrap:nowrap;overflow-x:auto}
  .subnav a{padding:9px 12px 10px;font-size:12.5px}
  .masthead .wrap{min-height:64px;padding-top:8px;align-items:center}
  .pillars{display:none}
  .pillars.on{display:block;position:absolute;left:0;right:0;top:100%;z-index:70;
    background:var(--masthead-bg);border-bottom:4px solid var(--accent);padding:6px 16px 14px}
  .pillars.on .pillar > a{border-right:0;margin-right:0;padding:12px 0;font-size:22px;
    border-bottom:1px solid var(--masthead-line)}
  .masthead{position:relative}
  .burger{display:flex}
  .brandmark{order:-1;padding-bottom:0}
  .mast-tools{padding-bottom:0}
  .container .wrap{grid-template-columns:1fr}
  .rail{padding:8px 0 12px;border-bottom:1px solid var(--rule);margin-bottom:14px}
  .rail .see{margin-top:6px}
  .c-lead,.c-2,.c-3,.c-4,.c-5{grid-template-columns:1fr}
  .col{border-left:0;padding:0}
  .col + .col{border-top:1px solid var(--rule);margin-top:16px;padding-top:16px}
  .story.big{grid-template-columns:1fr}
  .story.big .shot{grid-column:1;grid-row:auto;margin-bottom:10px;min-height:0}
  .story.big .shot img{aspect-ratio:5/3;min-height:0;height:auto}
  .c-4 .col:nth-child(n+3),.c-5 .col:nth-child(n+3){margin-top:16px;padding-top:16px}
  .grid-list{grid-template-columns:1fr}
  .grid-list .story{border-left:0;padding-left:0;border-top:1px solid var(--rule)}
  .grid-list .story:first-child{border-top:0}
  .squares{grid-template-columns:1fr}
  .square{border-left:0;padding-left:0;border-top:1px solid var(--rule)}
  .square:first-child{border-top:0}
  .piece .wrap{grid-template-columns:1fr}
  .piece-rail{border-right:0;border-bottom:1px solid var(--rule);padding:0 0 14px;margin-bottom:16px;
    display:flex;gap:18px;flex-wrap:wrap}
  .piece-rail .line{border-top:0;padding:0}
  .piece-body{padding:0}
  .piece-figure{grid-column:1;padding-left:0}
  .body{font-size:17px}
  .foot .wrap{grid-template-columns:1fr}
  .foot > .wrap > div{border-left:0;padding:0;margin-top:22px}
  .foot > .wrap > div:first-child{margin-top:0}
}

/* Archimodulaire : le bleu de la marque au bandeau, une brique terre cuite en accent,
   une egyptienne pour les titres — le vocabulaire du batiment. */
:root{
  --accent:#b3452b;
  --bg:#ffffff; --surface:#f2f2ef; --rule:#d5d5cf; --rule-strong:#0f2f5c;
  --text:#121212; --muted:#5a5a55;
  --masthead-bg:#124385; --masthead-fg:#ffffff; --masthead-line:rgba(255,255,255,.28);
  --masthead-hover:rgba(255,255,255,.12);
  --subnav-bg:#0f3873; --subnav-fg:#ffffff; --subnav-line:rgba(255,255,255,.22);
  --edition-bg:#0c2c5a; --edition-fg:#d7e3f3; --edition-line:rgba(255,255,255,.2);
  --edition-strong:#ffffff;
  --foot-bg:#0c2c5a; --foot-fg:#ffffff; --foot-muted:#a9c1e0; --foot-line:rgba(255,255,255,.2);
  --font-head:'Zilla Slab',Georgia,'Times New Roman',serif;
  --font-body:'Source Serif 4',Georgia,'Times New Roman',serif;
  --font-ui:'Archivo','Helvetica Neue',Arial,sans-serif;
  --head-tracking:-.005em;
  --rail:150px; --logo-h:72px; --logo-plate:transparent; --logo-pad:0; --logo-radius:0;
}
/* Le filet fort de tete de rubrique est bleu, comme au bandeau. */
.container{border-top-width:1px}
/* Le logo porte sa propre plaque bleue : sur le pied de page, aussi bleu, il lui faut un liseré. */
.foot img{box-shadow:0 0 0 1px rgba(255,255,255,.3);height:38px}