/* NewsFolio — feuille de style unique (la direction artistique vit ici).
   100 % local, aucune dependance : la page s'ouvre depuis le disque.

   Direction : « encre & signal ». Base sombre quasi noire, trame de points
   type reseau de neurones, aplats de couleur satures, blocs anguleux a ombre
   dure facon autocollant, titres en italique lourd. Colore et graphique,
   mais sans fantaisie : hierarchie stricte, texte sobre, lecture calme. */

:root {
  --fond: #0a0b10;
  --fond-2: #0e1017;
  --fond-carte: #14171f;
  --fond-carte-survol: #191d27;
  --bordure: #262b36;
  --bordure-forte: #39414f;
  --texte: #eef1f5;
  --texte-doux: #a7b0bd;
  --texte-faible: #737c8a;
  --lien: #22c3ff;
  --encre: #ffd84d;
  --rayon: 4px;
  --largeur: 1140px;
  --display: "Arial Black", "Arial Bold", "Helvetica Neue", Impact,
             system-ui, sans-serif;
  --sans: system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--texte);
  font-family: var(--sans);
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  background-color: var(--fond);
  /* trame de points (reseau) + halos d'encre */
  background-image:
    radial-gradient(circle at 50% 50%, rgba(255,255,255,.045) 1px, transparent 1.6px),
    radial-gradient(760px 520px at 92% -8%, rgba(34,195,255,.13), transparent 70%),
    radial-gradient(680px 520px at -6% 4%, rgba(161,107,255,.13), transparent 70%),
    radial-gradient(900px 600px at 50% 118%, rgba(255,61,154,.09), transparent 70%);
  background-size: 26px 26px, auto, auto, auto;
  background-attachment: fixed;
}

a { color: var(--lien); text-decoration: none; }
a:hover { color: #7ddcff; text-decoration: underline; text-decoration-thickness: 2px; }

.zone { max-width: var(--largeur); margin: 0 auto; padding: 0 24px; }

/* ------------------------------------------------------------------ */
/* En-tete (accueil et edition)                                        */
/* ------------------------------------------------------------------ */
.entete {
  position: relative;
  overflow: hidden;
  border-bottom: 3px solid var(--encre);
  background:
    linear-gradient(180deg, rgba(255,216,77,.06), transparent 55%),
    linear-gradient(180deg, var(--fond-2), rgba(14,16,23,.35));
}
/* visuel IA (circuit + nappe de points), retourne pour degager le logo */
.entete::after {
  content: "";
  position: absolute; inset: 0;
  background: url("header-ia.webp") no-repeat 88% 60% / cover;
  transform: scaleX(-1);
  opacity: 1;
  filter: brightness(1.45) contrast(1.05);
  mix-blend-mode: screen;
  -webkit-mask-image: linear-gradient(90deg, transparent 0 24%, rgba(0,0,0,.4) 48%, #000 78%);
  mask-image: linear-gradient(90deg, transparent 0 24%, rgba(0,0,0,.4) 48%, #000 78%);
  pointer-events: none;
}
.entete-inner { position: relative; padding: 52px 24px 38px; z-index: 1; }

/* logo puis date, en colonne */
.marque {
  display: flex; flex-direction: column; align-items: flex-start; gap: 14px;
  margin-bottom: 26px;
}
/* le titre porte le logo : le texte du gabarit sert de contenu accessible */
.marque .titre {
  width: clamp(230px, 26vw, 300px);
  aspect-ratio: 918 / 185;
  margin: 0;
  background: url("logo.png") no-repeat left center / contain;
  font-size: 0; line-height: 0; color: transparent;
}
.marque .titre a {
  display: block; width: 100%; height: 100%;
  font-size: 0; color: transparent;
}
.marque .titre a:hover { text-decoration: none; }
.marque .titre .pastille { display: none; }

.marque .date, .marque .tagline {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--texte-doux);
  border: 1px solid var(--bordure-forte);
  border-radius: 999px;
  padding: 5px 12px;
}
.chapo {
  font-size: 19.5px;
  line-height: 1.55;
  color: var(--texte-doux);
  max-width: 780px;
  margin: 0;
  text-wrap: pretty;
  border-left: 4px solid var(--encre);
  padding-left: 18px;
}

/* ------------------------------------------------------------------ */
/* Fil d'une edition                                                   */
/* ------------------------------------------------------------------ */
main { padding: 40px 0 70px; }
.grille { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }

.carte {
  position: relative;
  isolation: isolate;
  background: var(--fond-carte);
  border: 2px solid var(--bordure);
  border-radius: var(--rayon);
  padding: 24px 24px 20px;
  box-shadow: 6px 6px 0 rgba(0,0,0,.55);
  transition: transform .16s ease, box-shadow .16s ease,
              border-color .16s ease, background .16s ease;
}
/* barre d'encre de la famille */
.carte::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 6px;
  background: var(--accent, var(--lien));
}
/* trame de noeuds : le motif « IA » discret, en bas a droite */
.carte::after {
  content: "";
  position: absolute; right: 0; bottom: 0; width: 132px; height: 132px;
  background-image: radial-gradient(circle,
    color-mix(in srgb, var(--accent, var(--lien)) 55%, transparent) 1.5px,
    transparent 2px);
  background-size: 16px 16px;
  opacity: .22;
  mask-image: radial-gradient(100% 100% at 100% 100%, #000 20%, transparent 72%);
  pointer-events: none;
  z-index: -1;
}
.carte:hover {
  background: var(--fond-carte-survol);
  border-color: color-mix(in srgb, var(--accent, var(--lien)) 60%, var(--bordure));
  transform: translate(-3px, -3px);
  box-shadow: 9px 9px 0 color-mix(in srgb, var(--accent, var(--lien)) 40%, transparent);
}

/* Une : traitement plein cadre, plus dense en couleur */
.carte.une {
  grid-column: 1 / -1;
  padding: 34px 34px 28px;
  background:
    radial-gradient(120% 160% at 100% 0%,
      color-mix(in srgb, var(--accent, var(--lien)) 16%, transparent), transparent 60%),
    var(--fond-carte);
  border-color: color-mix(in srgb, var(--accent, var(--lien)) 45%, var(--bordure));
}
.carte.une::after {
  width: 300px; height: 300px; background-size: 22px 22px; opacity: .3;
}
.carte.une .titre-actu { font-size: clamp(28px, 3.4vw, 40px); max-width: 940px; }
.carte.une .corps { font-size: 17.5px; max-width: 860px; }

.ruban {
  display: block; width: fit-content;
  font-family: var(--display);
  font-style: italic;
  font-size: 12.5px;
  font-weight: 900;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: #0b0c11;
  background: var(--accent, var(--lien));
  padding: 4px 12px 5px;
  margin-bottom: 12px;
  transform: skewX(-10deg);
  box-shadow: 3px 3px 0 rgba(0,0,0,.5);
}

.badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--mono);
  font-size: 11.5px; font-weight: 700; letter-spacing: .07em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--accent, var(--lien)) 82%, #fff);
  background: color-mix(in srgb, var(--accent, var(--lien)) 14%, transparent);
  border: 1.5px solid color-mix(in srgb, var(--accent, var(--lien)) 55%, transparent);
  padding: 4px 11px;
  border-radius: 3px;
  margin-bottom: 14px;
}
.badge .sc { font-weight: 500; opacity: .85; letter-spacing: .04em; }

.titre-actu {
  font-family: var(--display);
  font-size: 23px; line-height: 1.14;
  font-weight: 900; font-style: italic;
  letter-spacing: -.02em;
  text-transform: uppercase;
  text-wrap: balance;
  margin: 0 0 12px;
}
.titre-actu a { color: var(--texte); }
.titre-actu a:hover {
  color: var(--accent, var(--lien));
  text-decoration: none;
}
.corps { color: var(--texte-doux); margin: 0 0 18px; text-wrap: pretty; }
.corps p { margin: 0 0 11px; }
.corps p:last-child { margin-bottom: 0; }

.sources {
  font-family: var(--mono);
  font-size: 12px; letter-spacing: .02em;
  color: var(--texte-faible);
  border-top: 1px dashed var(--bordure-forte);
  padding-top: 12px;
}
.sources .primaire { color: var(--texte-doux); font-weight: 600; }
.sources .primaire a { color: var(--texte); }
.sources .secondaires { color: var(--texte-faible); }

/* Jour vide */
.vide {
  grid-column: 1 / -1; text-align: center; padding: 76px 24px;
  color: var(--texte-doux);
  border: 2px dashed var(--bordure-forte);
  border-radius: var(--rayon);
  background: rgba(20,23,31,.6);
}
.vide h2 {
  font-family: var(--display); font-style: italic; text-transform: uppercase;
  letter-spacing: -.02em; font-size: 30px; color: var(--texte);
  margin: 0 0 10px;
}
.vide p { max-width: 620px; margin: 0 auto; }

/* ------------------------------------------------------------------ */
/* Accueil : filtres + archives + index par article                   */
/* ------------------------------------------------------------------ */
.chips {
  display: flex; flex-wrap: wrap; gap: 10px; padding: 30px 0 20px;
  border-bottom: 2px solid var(--bordure);
}
.chip {
  font-family: var(--mono);
  font-size: 12px; font-weight: 700; letter-spacing: .06em;
  text-transform: uppercase;
  cursor: pointer;
  color: var(--texte-doux);
  background: var(--fond-carte);
  border: 2px solid var(--bordure);
  border-radius: 3px;
  padding: 8px 14px;
  display: inline-flex; align-items: center; gap: 8px;
  box-shadow: 3px 3px 0 rgba(0,0,0,.5);
  transition: transform .12s ease, box-shadow .12s ease,
              border-color .12s ease, color .12s ease, background .12s ease;
}
.chip:hover {
  color: var(--texte);
  border-color: var(--point, var(--lien));
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 rgba(0,0,0,.55);
}
.chip .point {
  width: 10px; height: 10px;
  background: var(--point, var(--lien));
  border-radius: 58% 42% 47% 53% / 52% 58% 42% 48%;
}
.chip[aria-pressed="true"] {
  color: #0b0c11;
  background: var(--point, var(--encre));
  border-color: var(--point, var(--encre));
  transform: translate(0, 0);
  box-shadow: 4px 4px 0 rgba(0,0,0,.6);
}
.chip[aria-pressed="true"] .point { background: rgba(0,0,0,.45); }

.section-titre {
  font-family: var(--mono);
  font-size: 12px; font-weight: 700; letter-spacing: .16em;
  text-transform: uppercase; color: var(--texte-faible);
  margin: 34px 0 16px;
  display: flex; align-items: center; gap: 12px;
}
.section-titre::after {
  content: ""; flex: 1; height: 2px;
  background: repeating-linear-gradient(90deg,
    var(--bordure-forte) 0 10px, transparent 10px 16px);
}

/* Archives : une carte par edition */
.archive { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.edition-carte {
  display: block; position: relative;
  background: var(--fond-carte);
  border: 2px solid var(--bordure);
  border-radius: var(--rayon);
  padding: 22px; color: inherit;
  box-shadow: 5px 5px 0 rgba(0,0,0,.5);
  transition: transform .16s ease, box-shadow .16s ease,
              border-color .16s ease, background .16s ease;
}
.edition-carte::before {
  content: ""; position: absolute; inset: 0 auto 0 0; width: 5px;
  background: var(--encre);
}
.edition-carte:hover {
  text-decoration: none;
  transform: translate(-3px, -3px);
  background: var(--fond-carte-survol);
  border-color: var(--encre);
  box-shadow: 8px 8px 0 rgba(255,216,77,.28);
}
.edition-carte .e-date {
  font-family: var(--display); font-style: italic; font-weight: 900;
  font-size: 18px; line-height: 1.15; text-transform: uppercase;
  letter-spacing: -.02em; margin: 0 0 8px;
}
.edition-carte .e-chapo {
  color: var(--texte-doux); font-size: 14.5px; margin: 0 0 16px;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical;
  overflow: hidden;
}
.edition-carte .e-meta {
  font-family: var(--mono); font-size: 11.5px; letter-spacing: .08em;
  text-transform: uppercase; color: var(--texte-faible);
}
.edition-carte.est-vide { background: rgba(20,23,31,.5); }
.edition-carte.est-vide::before { background: var(--bordure-forte); }
.edition-carte.est-vide .e-meta { color: var(--texte-faible); }

/* Index par article (vue filtree) */
.index-articles { display: flex; flex-direction: column; gap: 0; }
.item {
  display: grid; grid-template-columns: 150px 1fr; gap: 18px;
  padding: 16px 6px;
  border-bottom: 1px solid var(--bordure);
  transition: background .12s ease;
}
.item:hover { background: rgba(255,255,255,.02); }
.item .i-date {
  font-family: var(--mono); color: var(--texte-faible);
  font-size: 11.5px; letter-spacing: .06em; text-transform: uppercase;
  padding-top: 4px;
}
.item .i-titre {
  font-family: var(--display); font-style: italic; font-weight: 900;
  text-transform: uppercase; letter-spacing: -.015em;
  font-size: 16.5px; line-height: 1.2; margin: 0 0 7px;
}
.item .i-titre a { color: var(--texte); }
.item .i-titre a:hover { color: var(--lien); text-decoration: none; }
.item .i-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 10.5px; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase;
  color: #0b0c11; background: var(--accent, var(--lien));
  padding: 2px 8px; border-radius: 2px; margin-right: 10px;
}
.item .i-source {
  font-family: var(--mono); color: var(--texte-faible);
  font-size: 11.5px; letter-spacing: .03em;
}
.masque { display: none !important; }

/* ------------------------------------------------------------------ */
/* Pied                                                                */
/* ------------------------------------------------------------------ */
.pied {
  position: relative;
  border-top: 3px solid var(--encre);
  background: linear-gradient(180deg, rgba(255,216,77,.05), transparent 60%);
  font-family: var(--sans);
  color: var(--texte-doux);
  font-size: 13.5px; letter-spacing: 0;
  padding: 28px 0 56px;
}
.pied a { color: var(--texte-doux); }

@media (max-width: 980px) {
  .archive { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .grille, .archive { grid-template-columns: 1fr; }
  .entete-inner { padding: 38px 0 30px; }
  .carte.une { padding: 24px 22px 20px; }
  .chapo { font-size: 17.5px; }
  .item { grid-template-columns: 1fr; gap: 6px; }
  .item .i-date { padding-top: 0; }
}