/* ============================================================
   SITE.CSS — feuille de style partagée
   Utilisée par : accueil, index public, index abonnés, blog.
   Un seul fichier à modifier pour changer l'identité visuelle
   de tout le site.
   ============================================================ */

:root {
  --paper: #EFECE2;
  --paper-line: #D8D2C1;
  --ink: #1C2B2E;
  --ink-blue: #1F4E6B;
  --ink-blue-soft: #4C7A94;
  --graphite: #6B6A61;
  --card-bg: #F7F5EE;
  --max-width: 1040px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  background-image:
    linear-gradient(var(--paper-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--paper-line) 1px, transparent 1px);
  background-size: 28px 28px;
  color: var(--ink);
  font-family: 'Inter', sans-serif;
  line-height: 1.55;
}

a { color: inherit; }

.sheet {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 32px 80px;
}

/* --- En-tête façon cartouche de plan technique --- */

.titleblock {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 32px;
  border-bottom: 2px solid var(--ink);
  padding-bottom: 20px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.doc-code {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-blue);
  margin: 0 0 6px;
}

h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 34px;
  margin: 0 0 8px;
}

.doc-sub {
  margin: 0;
  color: var(--graphite);
  font-size: 15px;
}

.titleblock-right dl {
  display: flex;
  gap: 28px;
  margin: 0;
}

.titleblock-right dt {
  font-size: 11px;
  color: var(--graphite);
  margin: 0 0 2px;
}

.titleblock-right dd {
  margin: 0;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 16px;
  color: var(--ink-blue);
}

/* --- Navigation simple --- */

.site-nav {
  display: flex;
  gap: 24px;
  font-size: 14px;
}

.site-nav a {
  text-decoration: none;
  color: var(--graphite);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}

.site-nav a:hover {
  color: var(--ink-blue);
  border-bottom-color: var(--ink-blue);
}

/* --- Groupes de section (thème / catégorie) --- */

.theme-group { margin-bottom: 48px; }

.theme-header {
  display: flex;
  align-items: baseline;
  gap: 16px;
  border-left: 3px solid var(--ink-blue);
  padding-left: 14px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.theme-header h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 19px;
  font-weight: 600;
  margin: 0;
}

.theme-header p {
  margin: 0;
  color: var(--graphite);
  font-size: 14px;
}

/* --- Grille de cartes (vidéos, articles) --- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}

.thumb-card {
  text-decoration: none;
  color: inherit;
  display: block;
}

.thumb-frame {
  position: relative;
  aspect-ratio: 16 / 10;
  background: var(--card-bg);
  border: 1px solid var(--paper-line);
  overflow: hidden;
  transition: border-color 0.15s ease;
}

.thumb-card:hover .thumb-frame { border-color: var(--ink-blue); }

.thumb-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-blue-soft);
}

.corner {
  position: absolute;
  width: 10px;
  height: 10px;
  border-color: var(--ink-blue);
  opacity: 0;
  transition: opacity 0.15s ease;
}
.thumb-card:hover .corner { opacity: 1; }
.corner.tl { top: 4px; left: 4px; border-top: 2px solid; border-left: 2px solid; }
.corner.tr { top: 4px; right: 4px; border-top: 2px solid; border-right: 2px solid; }
.corner.bl { bottom: 4px; left: 4px; border-bottom: 2px solid; border-left: 2px solid; }
.corner.br { bottom: 4px; right: 4px; border-bottom: 2px solid; border-right: 2px solid; }

.card-meta {
  margin-top: 8px;
}

.card-title {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
}

.card-sub {
  display: block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 12px;
  color: var(--graphite);
  margin-top: 2px;
}

/* --- Pied de page --- */

.sheet-footer {
  margin-top: 56px;
  padding-top: 16px;
  border-top: 1px solid var(--paper-line);
}

.sheet-footer p {
  margin: 0;
  font-size: 13px;
  color: var(--graphite);
}

/* --- Page d'accueil : hero --- */

.hero {
  margin-bottom: 56px;
}

.hero-eyebrow {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-blue);
  margin: 0 0 10px;
}

.hero h1 { font-size: 40px; max-width: 640px; }

.hero-lead {
  max-width: 560px;
  font-size: 16px;
  color: var(--graphite);
  margin-top: 12px;
}

.applications {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
  margin: 32px 0 0;
}

.application-item {
  border-left: 2px solid var(--paper-line);
  padding-left: 14px;
}

.application-item h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 4px;
}

.application-item p {
  margin: 0;
  font-size: 13.5px;
  color: var(--graphite);
}

/* --- Funnel (paliers d'accès) --- */

.funnel-intro {
  max-width: 640px;
  color: var(--graphite);
  margin-bottom: 28px;
}

.funnel {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--paper-line);
}

.funnel-step {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  gap: 20px;
  align-items: start;
  padding: 24px 0;
  border-bottom: 1px solid var(--paper-line);
}

.funnel-step .step-index {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 13px;
  color: var(--ink-blue);
  padding-top: 3px;
}

.funnel-step h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 17px;
  font-weight: 600;
  margin: 0 0 6px;
}

.funnel-step p {
  margin: 0;
  font-size: 14px;
  color: var(--graphite);
  max-width: 480px;
}

.funnel-step .step-tag {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--ink-blue);
  border: 1px solid var(--ink-blue-soft);
  padding: 5px 10px;
  white-space: nowrap;
  align-self: start;
}

.funnel-step .step-tag.muted {
  color: var(--graphite);
  border-color: var(--paper-line);
}

/* --- Typographie longue (articles de blog) --- */

.article-body {
  max-width: 680px;
  font-size: 16px;
}

.article-body h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 22px;
  margin: 40px 0 14px;
}

.article-body h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 18px;
  margin: 32px 0 12px;
}

.article-body p { margin: 0 0 16px; }

.article-body img {
  max-width: 100%;
  border: 1px solid var(--paper-line);
  margin: 8px 0 24px;
}

.article-body code {
  background: var(--card-bg);
  border: 1px solid var(--paper-line);
  padding: 1px 5px;
  font-size: 14px;
}

.article-body pre {
  background: var(--card-bg);
  border: 1px solid var(--paper-line);
  padding: 14px;
  overflow-x: auto;
}

.article-body pre code {
  background: none;
  border: 0;
  padding: 0;
}

.article-body ul, .article-body ol {
  margin: 0 0 16px;
  padding-left: 22px;
}

.article-meta {
  display: flex;
  gap: 16px;
  align-items: baseline;
  color: var(--graphite);
  font-size: 13px;
  margin-bottom: 32px;
}

.article-meta .doc-code { margin: 0; }

/* --- Barre du haut : logo (accueil) + réseaux sociaux (assets/reseaux.js) --- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 28px;
  margin-bottom: 20px;
}

.topbar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.topbar-logo img { width: 40px; height: 40px; display: block; }

.reseaux {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-left: auto;
}

.reseaux a { display: block; line-height: 0; }

.reseaux img {
  width: 17px;
  height: 17px;
  opacity: 0.55;
  transition: opacity 0.15s ease;
}

.reseaux a:hover img { opacity: 1; }

/* --- Blog : vidéos intégrées et galeries d'images --- */

.article-body .video {
  position: relative;
  aspect-ratio: 16 / 9;
  margin: 8px 0 24px;
  border: 1px solid var(--paper-line);
  background: var(--card-bg);
}

.article-body .video iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.article-body .galerie {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
  margin: 8px 0 24px;
}

.article-body .galerie img { margin: 0; width: 100%; }

.article-body .card-grid { margin: 8px 0 28px; }
.article-body .thumb-frame { aspect-ratio: 16 / 9; }
.article-body .thumb-frame img { margin: 0; border: 0; }
.article-body .thumb-card { text-decoration: none; }

.article-body table {
  border-collapse: collapse;
  margin: 0 0 16px;
  font-size: 15px;
}

.article-body th, .article-body td {
  border: 1px solid var(--paper-line);
  padding: 6px 10px;
  text-align: left;
}

.article-body th { background: var(--card-bg); }

/* --- Accueil : pré-intro maker --- */

.pre-intro {
  max-width: 640px;
  margin: 0 0 48px;
}

.pre-intro p { color: var(--graphite); font-size: 16px; margin: 0 0 14px; }

.principes {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 6px 20px;
  font-size: 14px;
}

.principes li { border-left: 2px solid var(--paper-line); padding-left: 10px; }

/* --- Ressources : vidéos réservées aux abonnés (cadenas) --- */

.badge-abonne {
  position: absolute;
  top: 8px;
  right: 8px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--paper);
  background: var(--ink-blue);
  padding: 3px 8px;
}

.verrou .thumb-frame img { filter: saturate(0.6); opacity: 0.85; transition: opacity 0.15s ease; }
.verrou:hover .thumb-frame img { opacity: 1; }

.sheet-footer .lien-legal { margin-top: 8px; font-size: 12px; }
.sheet-footer .lien-legal a { color: var(--graphite); }

/* --- Responsive --- */

@media (max-width: 560px) {
  .sheet { padding: 32px 18px 60px; }
  h1 { font-size: 26px; }
  .hero h1 { font-size: 30px; }
  .theme-header { flex-direction: column; gap: 4px; }
  .funnel-step {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .funnel-step .step-tag { justify-self: start; }
}