/* ── C-21 — Timeline ─────────────────────────────────────────────────────────── */

.bloc-c21 {
  background-color: var(--bloc-bg, #F6F2E8);
  padding: 64px 0;
}

/* ── En-tête ── */

.bloc-c21__caption {
  text-align: center;
  color: var(--bloc-accent, #4F5A2A);
  font-family: var(--font-secondary);
  font-size: 13px;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}

.bloc-c21__caption::before {
  content: '— ';
}

.bloc-c21__heading {
  color: var(--bloc-text, #171D21);
  font-family: var(--font-primary);
  font-weight: 700;
  text-align: center;
  margin-bottom: 12px;
}

.bloc-c21__intro {
  max-width: 640px;
  margin: 0 auto 56px;
  text-align: center;
}

.bloc-c21__intro p {
  color: var(--bloc-text, #171D21);
  font-family: var(--font-secondary);
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 1em;
}

.bloc-c21__intro p:last-child {
  margin-bottom: 0;
}

/* ── Wrapper timeline ── */

.bloc-c21__timeline {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
}

/* Ligne verticale — centre de la colonne dot (32px) :
   year(80) + gap(24) + demi-colonne(16) = 120px */
.bloc-c21__line {
  position: absolute;
  left: calc(80px + 24px + 16px);
  top: 20px;
  bottom: 20px;
  width: 2px;
  background-color: var(--bloc-accent, #4F5A2A);
  z-index: 0;
}

/* ── Item ── */

.bloc-c21__item {
  display: grid;
  grid-template-columns: 80px 32px 1fr;
  column-gap: 24px;
  margin-bottom: 20px;
  align-items: flex-start;
}

.bloc-c21__item:last-child {
  margin-bottom: 0;
}

/* ── Année (colonne gauche) ── */

.bloc-c21__item-year {
  font-family: var(--font-primary);
  font-weight: 700;
  font-size: 22px;
  color: var(--bloc-text, #171D21);
  text-align: right;
  padding-top: 12px;
  line-height: 1.1;
}

/* ── Dot (colonne centrale) ── */

.bloc-c21__item-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--bloc-accent, #4F5A2A);
  background-color: var(--bloc-bg, #F6F2E8);
  position: relative;
  margin-top: 14px;
  justify-self: center;
  overflow: hidden;
  z-index: 1;
  flex-shrink: 0;
}

.bloc-c21__item-dot-fill {
  display: block;
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background-color: var(--bloc-accent, #4F5A2A);
  transform: scale(0);
  transform-origin: center;
  transition: transform 0.4s ease-out;
}

.bloc-c21__item.timeline-item--active .bloc-c21__item-dot-fill {
  transform: scale(1);
}

/* ── Card (colonne droite) ── */

.bloc-c21__item-card {
  background-color: var(--bloc-bg, #F6F2E8);
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: 8px;
  padding: 18px 22px;
}

.bloc-c21__item-caption {
  display: block;
  font-family: var(--font-secondary);
  font-size: 12px;
  color: var(--bloc-accent, #4F5A2A);
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.bloc-c21__item-caption::before {
  content: '';
}

.bloc-c21__item-title {
  font-family: var(--font-primary);
  font-weight: 700;
  font-size: 17px;
  color: var(--bloc-text, #171D21);
  margin: 0 0 4px;
  line-height: 1.3;
}

.bloc-c21__item-year-mobile {
  display: none;
}

.bloc-c21__item-text {
  margin-top: 8px;
}

.bloc-c21__item-text p {
  font-family: var(--font-secondary);
  font-size: 16px;
  color: var(--bloc-text, #171D21);
  line-height: 1.6;
  margin-bottom: 0.5em;
  opacity: 0.85;
}

.bloc-c21__item-text p:last-child {
  margin-bottom: 0;
}

/* ── prefers-reduced-motion ── */

@media (prefers-reduced-motion: reduce) {
  .bloc-c21__item-dot-fill {
    transition: none;
  }
}

/* ── Mobile (< 768px) ── */

@media (max-width: 767px) {
  .bloc-c21 {
    padding: 56px 0;
  }

  .bloc-c21__intro {
    margin-bottom: 40px;
  }

  .bloc-c21__line {
    left: 16px;
  }

  .bloc-c21__item {
    grid-template-columns: 32px 1fr;
    column-gap: 16px;
  }

  .bloc-c21__item-year {
    display: none;
  }

  .bloc-c21__item-year-mobile {
    display: block;
    font-family: var(--font-secondary);
    font-size: 11px;
    letter-spacing: 0.05em;
    color: var(--bloc-accent, #4F5A2A);
    margin-bottom: 4px;
  }

  .bloc-c21__item-card {
    padding: 14px 16px;
  }

  .bloc-c21__item-title {
    font-size: 15px;
  }
}

/* ── Desktop ── */

@media (min-width: 1024px) {
  .bloc-c21 {
    padding: 96px 0;
  }

  .bloc-c21__item-card {
    padding: 22px 28px;
  }

  .bloc-c21__item-title {
    font-size: 18px;
  }
}