/* ============================================================================
   Studio 1·618 — Vitrine LMS · pages satellites (cluster SEO)
   ----------------------------------------------------------------------------
   Couche additive au-dessus de vitrine.css : RÉUTILISE ses tokens (couleurs,
   typo, ombres, rayons) et ses classes (.container, .section-pad, .btn, .h2…).
   N'introduit AUCUNE dépendance aux libs génératives (floraison / brand-gfx) :
   le décor de marque est ici une lueur CSS, 100 % fiable et sans JS.

   Ces styles ne servent QUE les pages satellites (production-e-learning,
   ingenierie-pedagogique, lms-white-label, plateforme-qualiopi, realisations…).
   Le pilier (index.html) n'est pas affecté.
   ========================================================================== */

/* ------------------------------ FIL D'ARIANE ----------------------------- */
.crumb {
  display: flex; flex-wrap: wrap; align-items: center; gap: 7px;
  font-size: .9rem; color: var(--text-2); font-weight: 600;
}
.crumb a { color: var(--text-2); transition: color .15s; }
.crumb a:hover { color: var(--accent-text); }
.crumb svg { width: 14px; height: 14px; opacity: .5; }
.crumb [aria-current] { color: var(--text); }

/* ------------------------------ HERO SATELLITE --------------------------- */
.shero { position: relative; overflow: hidden; padding-top: clamp(40px, 7vw, 80px); }
/* Lueur de marque (indigo) — décorative, sans JS, theme-neutre. */
.shero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background: radial-gradient(46% 60% at 88% -6%, rgba(99, 99, 247, .16), transparent 70%);
}
.shero .container { position: relative; z-index: 1; }
.shero h1 {
  font-weight: 800; letter-spacing: -0.035em; line-height: 1.05;
  font-size: clamp(2.3rem, 5vw, 3.7rem); max-width: 19ch; margin-top: 16px;
}
.shero h1 .hl { color: var(--accent-text); }
.shero .lead { margin-top: 22px; max-width: 60ch; }
.shero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.shero-trust {
  list-style: none; margin: 30px 0 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: 10px 22px;
}
.shero-trust li { display: inline-flex; align-items: center; gap: 8px; font-size: .92rem; font-weight: 600; color: var(--text-2); }
.shero-trust svg { width: 17px; height: 17px; color: var(--accent-text); }

/* ------------------------------ CORPS / PROSE ---------------------------- */
.prose-block { margin-top: clamp(40px, 6vw, 68px); }
.prose-block:first-child { margin-top: 0; }
.prose-block h2 {
  font-weight: 800; letter-spacing: -0.025em; line-height: 1.14;
  font-size: clamp(1.55rem, 3vw, 2.15rem); max-width: 24ch;
}
.prose-block > p { margin-top: 16px; color: var(--text-2); line-height: 1.75; font-size: 1.06rem; max-width: 66ch; }
.prose-block > p + p { margin-top: 14px; }
.prose-block strong { color: var(--text); font-weight: 700; }
.prose-block a { color: var(--accent-text); font-weight: 600; }
.prose-block a:hover { text-decoration: underline; }

/* listes « cochées » */
ul.ticks { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 13px; max-width: 64ch; }
ul.ticks li { display: flex; gap: 12px; color: var(--text-2); line-height: 1.6; }
ul.ticks li svg { width: 20px; height: 20px; color: var(--accent-text); flex: none; margin-top: 2px; }
ul.ticks li b { color: var(--text); font-weight: 700; }

/* marqueur rédactionnel « À COMPLÉTER » — visible, neutre, facile à retrouver */
.todo {
  display: inline-block; background: var(--mondrian-yellow); color: #1A1714;
  font-weight: 700; font-size: .82em; padding: 1px 8px; border-radius: 6px;
  white-space: nowrap;
}
.placeholder-note {
  margin-top: 20px; padding: 14px 16px; border: 1px dashed var(--border-strong);
  border-radius: 12px; background: var(--surface-2); color: var(--text-2);
  font-size: .95rem; line-height: 1.6; max-width: 64ch;
}

/* bandeau de preuves réutilisable (mêmes faits que le pilier) */
.minproof { display: flex; flex-wrap: wrap; gap: 12px 26px; margin-top: 26px; }
.minproof span { display: inline-flex; align-items: center; gap: 9px; font-weight: 600; font-size: .96rem; color: var(--text-2); }
.minproof svg { width: 18px; height: 18px; color: var(--accent-text); }

/* ------------------------------ MAILLAGE INTERNE ------------------------- */
.cluster { margin-top: clamp(56px, 8vw, 96px); }
.cluster .eyebrow { margin-bottom: 10px; }
.cluster h2 { font-weight: 800; letter-spacing: -.025em; font-size: clamp(1.5rem, 2.6vw, 2rem); }
.cluster-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(248px, 1fr));
  gap: 16px; margin-top: 26px;
}
.cluster-card {
  display: block; padding: 24px; border: 1px solid var(--border);
  border-radius: var(--radius-lg); background: var(--surface);
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease), border-color var(--t);
}
.cluster-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.cluster-card .ck { font-size: .76rem; font-weight: 700; text-transform: uppercase; letter-spacing: .09em; color: var(--accent-text); }
.cluster-card h3 { margin-top: 9px; font-size: 1.14rem; font-weight: 700; letter-spacing: -.02em; line-height: 1.25; }
.cluster-card p { margin-top: 9px; color: var(--text-2); font-size: .96rem; line-height: 1.55; }
.cluster-card .arrow { margin-top: 14px; display: inline-flex; gap: 6px; align-items: center; color: var(--accent-text); font-weight: 600; font-size: .95rem; }
.cluster-card .arrow svg { width: 16px; height: 16px; }

/* ------------------------------ BANDE CTA -------------------------------- */
.cta-band { background: var(--surface-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.cta-band .inner {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 24px 40px; padding: clamp(40px, 6vw, 64px) 0;
}
.cta-band h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; letter-spacing: -.025em; max-width: 22ch; line-height: 1.1; }
.cta-band .lead { margin-top: 12px; max-width: 46ch; }
.cta-band .cta-band-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* ------------------------------ FAQ ------------------------------------- */
.faq { margin-top: clamp(40px, 6vw, 64px); display: grid; gap: 12px; max-width: 800px; }
.faq details { border: 1px solid var(--border); border-radius: 14px; background: var(--surface); padding: 0 20px; }
.faq summary {
  cursor: pointer; font-weight: 700; padding: 18px 0; list-style: none;
  display: flex; justify-content: space-between; gap: 16px; align-items: center;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent-text); font-size: 1.5rem; line-height: 1; font-weight: 400; }
.faq details[open] summary::after { content: "\2013"; }
.faq details[open] summary { border-bottom: 1px solid var(--border); }
.faq details p { color: var(--text-2); line-height: 1.7; padding: 14px 0 20px; margin: 0; }

/* ------------------------------ RÉALISATIONS ----------------------------- */
.realisation-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; margin-top: 8px; }
.realisation-card {
  display: flex; flex-direction: column; padding: 26px; border: 1px solid var(--border);
  border-radius: var(--radius-lg); background: var(--surface);
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease), border-color var(--t);
}
.realisation-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.realisation-card .tag { display: inline-flex; align-items: center; gap: 8px; font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--accent-text); }
.realisation-card h3 { margin-top: 12px; font-size: 1.3rem; font-weight: 700; letter-spacing: -.02em; line-height: 1.2; }
.realisation-card p { margin-top: 10px; color: var(--text-2); line-height: 1.6; flex: 1; }
.realisation-card .meta { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: .9rem; color: var(--text-2); }
.realisation-card .meta b { color: var(--text); }
.realisation-card .go { margin-top: 18px; display: inline-flex; align-items: center; gap: 7px; font-weight: 600; color: var(--accent-text); }
.realisation-card .go svg { width: 16px; height: 16px; }

/* clé / valeur des « faits » d'une étude de cas */
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; margin-top: 26px; }
.fact { padding: 18px 20px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.fact .k { font-size: .82rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--text-2); }
.fact .v { margin-top: 6px; font-size: 1.05rem; font-weight: 700; color: var(--text); line-height: 1.3; }

/* lien « retour pilier » discret en tête d'article */
.back-pillar { display: inline-flex; align-items: center; gap: 8px; color: var(--text-2); font-weight: 600; }
.back-pillar:hover { color: var(--text); }
.back-pillar svg { width: 16px; height: 16px; }