/* =====================================================================
   HBI — Composants éditoriaux (page Programme Master). Tokens de site.css.
   ===================================================================== */

/* ---- Faits-clés ---- */
.key-facts {
  position: relative;
  z-index: 2;
  /* remontée de ~50% de sa hauteur pour chevaucher le hero (voir .page-hero--facts) */
  margin-top: calc(-1 * var(--kf-half, 4.25rem));
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.key-fact { padding: clamp(1.4rem, 2.5vw, 2rem); background: var(--surface); }

/* Faits-clés sortis du hero : le hero réserve ~la moitié de leur hauteur en padding-bas,
   et la boîte remonte d'autant (margin-top négatif) → chevauchement ≈ 50/50. */
.page-hero--facts { padding-bottom: calc(var(--kf-half, 4.25rem) + clamp(2rem, 4vw, 3rem)); }
.key-fact + .key-fact { border-left: 1px solid var(--line); }
.key-fact__num {
  display: block;
  font-family: var(--serif);
  font-size: var(--step-3);
  font-weight: 500;
  line-height: 1;
}
.key-fact__num em { font-style: normal; color: var(--accent-2); font-size: .5em; letter-spacing: 0; }
.key-fact__label { display: block; margin-top: .6rem; font-size: var(--step-sm); color: var(--muted); }

/* ---- Callout (pré-requis) ---- */
.callout {
  border-left: 3px solid var(--accent-2);   /* bleu main */
  padding-left: clamp(1.1rem, 3vw, 1.6rem);
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.callout__label {
  display: inline-block;
  font-size: var(--step-xs);
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: .7rem;
}
.callout p { font-size: var(--step-1); line-height: 1.55; color: var(--ink-2); }

/* ---- Sections ---- */
.prog-section + .prog-section { margin-top: clamp(3.5rem, 7vw, 6rem); }
.prog-section__title {
  font-size: var(--step-3);
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
}
.prog-section__intro { margin-top: 1.2rem; font-size: var(--step-sm); color: var(--ink-2); max-width: 64ch; }
.optional-tag {
  font-family: var(--sans);
  font-size: var(--step-xs);
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: .25em .8em;
  letter-spacing: .1em;
}

.prog-block { margin-top: clamp(2rem, 4vw, 3rem); }
.prog-block h3 {
  font-size: var(--step-1);
  margin-bottom: .9rem;
}
.prog-block > p { color: var(--ink-2); }
.prog-block > p + .marker-list,
.prog-block > p + .steps-list { margin-top: 1.1rem; }

/* ---- Listes ---- */
.marker-list { display: grid; gap: .8rem; }
.marker-list li {
  position: relative;
  padding-left: 1.6rem;
  color: var(--ink-2);
  line-height: 1.6;
}
.marker-list li::before {
  content: "";
  position: absolute;
  left: 0; top: .62em;
  width: 7px; height: 7px;
  background: var(--accent);
  border-radius: 1px;
}
.steps-list { display: grid; gap: 1rem; counter-reset: step; }
.steps-list li {
  position: relative;
  padding-left: 2.6rem;
  color: var(--ink-2);
  line-height: 1.6;
}
.steps-list li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0; top: 0;
  width: 1.8rem; height: 1.8rem;
  display: grid; place-items: center;
  font-family: var(--serif);
  font-size: var(--step-sm);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 50%;
}

/* ---- Montant ---- */
.amount { display: flex; align-items: baseline; gap: .8rem; margin-bottom: 1.1rem; }
.amount__num { font-family: var(--serif); font-size: var(--step-3); font-weight: 500; }
.amount__label { font-size: var(--step-sm); color: var(--muted); text-transform: uppercase; letter-spacing: .1em; }

/* ---- Frise des dates limites ---- */
.timeline__intro { margin-top: 1.6rem; color: var(--ink-2); }
.timeline { margin-top: 1rem; display: grid; gap: .5rem; }
.timeline li {
  display: grid;
  grid-template-columns: auto 1.6rem 1fr;
  align-items: center;
  gap: .6rem;
  padding: .85rem 1.1rem;
  background: var(--surface);
  border-radius: 10px;
}
.timeline__date { font-weight: 600; color: var(--ink); }
.timeline__arrow { color: var(--accent-2); text-align: center; }
.timeline__target { color: var(--ink-2); font-size: var(--step-sm); }
.note { margin-top: 1.2rem; font-size: var(--step-sm); color: var(--muted); line-height: 1.6; }

/* ---- Accordéons (<details> natifs) ---- */
.accordion {
  border-bottom: 1px solid var(--line);
}
.prog-section .accordion:first-of-type { border-top: 1px solid var(--line); margin-top: 1.8rem; }
.accordion__sum {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--serif);
  font-size: var(--step-1);
  letter-spacing: -0.04em;
  color: var(--ink);
  transition: color var(--t);
}
.accordion__sum::-webkit-details-marker { display: none; }
.accordion__sum:hover { color: var(--accent-2); }
.accordion__icon {
  flex: 0 0 auto;
  position: relative;
  width: 18px; height: 18px;
}
.accordion__icon::before,
.accordion__icon::after {
  content: "";
  position: absolute;
  background: var(--ink);
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}
.accordion__icon::before { top: 50%; left: 0; width: 100%; height: 1.5px; transform: translateY(-50%); }
.accordion__icon::after  { left: 50%; top: 0; height: 100%; width: 1.5px; transform: translateX(-50%); }
.accordion[open] .accordion__icon::after { transform: translateX(-50%) scaleY(0); opacity: 0; }
.accordion__body {
  padding: 0 0 1.6rem;
  animation: acc-in .35s var(--ease);
}
.accordion__body > * + * { margin-top: 1rem; }
@keyframes acc-in { from { opacity: 0; transform: translateY(-6px); } }

/* ---- Frise des éditions (congrès) avec téléchargements intégrés ---- */
.timeline-ed { margin-top: 1.8rem; }
.tl-ed { display: grid; grid-template-columns: 4.5rem 1fr; gap: 1.4rem; }
.tl-ed__year {
  font-family: var(--serif);
  font-size: var(--step-2);
  letter-spacing: 0;
  color: var(--ink);
  text-align: right;
  line-height: 1.1;
}
.tl-ed__main {
  position: relative;
  border-left: 1px solid var(--line);
  padding: 0 0 2.4rem 1.6rem;
}
.tl-ed:last-child .tl-ed__main { padding-bottom: 0; }
.tl-ed__main::before {
  content: "";
  position: absolute;
  left: -5px; top: .35rem;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--paper);
}
.tl-ed__city { font-size: var(--step-1); letter-spacing: -0.04em; }
.tl-ed__org { margin-top: .3rem; color: var(--ink-2); font-size: var(--step-sm); }
.tl-ed__note { margin-top: .3rem; color: var(--muted); font-size: var(--step-sm); }
.tl-ed__dl { margin-top: .9rem; display: flex; flex-wrap: wrap; gap: .6rem; }
.dl-pill {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .5rem .9rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: var(--step-sm);
  color: var(--ink);
  transition: border-color var(--t), background var(--t), transform .25s var(--ease);
}
.dl-pill:hover { border-color: var(--ink); background: var(--surface-2); transform: translateY(-1px); }
.dl-pill svg { color: var(--accent-2); flex: 0 0 auto; }

@media (max-width: 620px) {
  .tl-ed { grid-template-columns: 3.2rem 1fr; gap: .9rem; }
  .tl-ed__year { font-size: var(--step-1); }
  .key-facts {
    display: flex;
    overflow-x: auto;
    gap: .6rem;
    border: 0;
    border-radius: 0;
    /* full-bleed : annule le padding de .shell pour coller le scroll au viewport */
    margin-inline: calc(-1 * var(--gutter));
    padding-inline: var(--gutter);
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }
  .key-facts::-webkit-scrollbar { display: none; }
  .key-fact {
    flex: 0 0 auto;
    min-width: 9.5rem;
    border: 1px solid var(--line);
    border-radius: 12px;
  }
  .timeline li { grid-template-columns: 1fr; gap: .15rem; }
  .timeline__arrow { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .accordion__body { animation: none; }
}