#rna-formations {
  width: 100%;
  min-width: 0;
  background: var(--rna-paper);
  color: var(--rna-ink);
}

/* ---- Hero ---- */

#rna-formations .rna-formations-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: calc(56px + var(--rna-header-offset) + var(--rna-header-height)) 0 calc(var(--rna-tilt-pad) + 3.5rem);
  background: radial-gradient(ellipse at 92% 15%, rgb(31 138 109 / 22%), transparent 48%), radial-gradient(ellipse at 95% 95%, rgb(232 163 61 / 10%), transparent 38%), var(--rna-navy);
  color: var(--rna-paper);
}

#rna-formations .rna-formations-hero::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: calc(var(--rna-tilt-pad) * 2);
  background: var(--rna-paper);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
  content: "";
  pointer-events: none;
}

#rna-formations .rna-formations-hero .rna-eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 20px;
  color: var(--rna-amber);
}

#rna-formations .rna-formations-hero .rna-eyebrow::before {
  flex: 0 0 28px;
  height: 2px;
  background: currentColor;
  content: "";
}

#rna-formations .rna-formations-hero h1 {
  max-width: 26ch;
  margin: 0 0 20px;
  color: var(--rna-paper);
  font-size: clamp(2.2rem, 4.5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.045em;
  text-wrap: balance;
}

#rna-formations .rna-formations-hero__lead {
  max-width: 62ch;
  margin: 0 0 28px;
  color: #c4d1de;
  font-family: var(--rna-font-body);
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  line-height: 1.7;
}

#rna-formations .rna-formations-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

#rna-formations .rna-formations-hero__secondary {
  border-color: rgb(255 255 255 / 30%);
  color: var(--rna-paper);
}

#rna-formations .rna-formations-hero__secondary:hover {
  background: #fff;
  border-color: #fff;
  color: var(--rna-navy);
}

/* ---- Catégories ---- */

#rna-formations .rna-formations-category {
  padding: clamp(40px, 5vw, 64px) 0;
}

#rna-formations .rna-formations-category:not(:last-of-type) {
  border-bottom: 1px solid var(--rna-line);
}

#rna-formations .rna-formations-category__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--rna-line);
}

#rna-formations .rna-formations-category__head h2 {
  margin: 0;
  color: var(--rna-navy);
  font-size: clamp(1.5rem, 2.5vw, 2.05rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.035em;
}

#rna-formations .rna-formations-category__kicker {
  margin: 0;
  padding: 6px 14px;
  border: 1px solid var(--rna-line);
  border-radius: 999px;
  color: var(--rna-muted);
  font-size: .78rem;
  font-weight: 700;
  white-space: nowrap;
}

#rna-formations .rna-formations-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

#rna-formations .rna-formations-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
  height: 100%;
  padding: clamp(22px, 3vw, 28px);
  border: 1px solid var(--rna-line);
  border-top: 3px solid var(--rna-emerald);
  border-radius: var(--rna-radius);
  background: #fff;
  transition: border-color .2s, box-shadow .2s, transform .2s;
}

#rna-formations .rna-formations-card:hover {
  border-color: #a4b9ad;
  border-top-color: var(--rna-emerald);
  box-shadow: 0 14px 32px rgb(14 26 43 / 8%);
  transform: translateY(-2px);
}

#rna-formations .rna-formations-card__media {
  flex: 0 0 auto;
  margin: 0;
  border-radius: calc(var(--rna-radius) - 2px);
  overflow: hidden;
}

#rna-formations .rna-formations-card__media img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: calc(var(--rna-radius) - 2px);
}

#rna-formations .rna-formations-card__title {
  margin: 0;
  color: var(--rna-navy);
  font-size: 1.1rem;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -.02em;
}

#rna-formations .rna-formations-card__excerpt {
  margin: 0;
  color: var(--rna-muted);
  font-family: var(--rna-font-body);
  font-size: .92rem;
  line-height: 1.6;
}

#rna-formations .rna-formations-card__cta {
  align-self: flex-start;
  margin-top: auto;
  min-height: 44px;
  padding: 11px 18px;
  font-size: .84rem;
}

/* ---- Adaptations ---- */

@media (max-width: 1024px) {
  #rna-formations .rna-formations-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 767px) {
  #rna-formations .rna-formations-hero {
    padding-top: calc(44px + var(--rna-header-offset) + var(--rna-header-height));
    padding-bottom: calc(var(--rna-tilt-pad) + 2.5rem);
  }

  #rna-formations .rna-formations-hero h1 {
    max-width: none;
  }

  #rna-formations .rna-formations-hero__actions .rna-button {
    width: 100%;
  }

  #rna-formations .rna-formations-category__head {
    align-items: flex-start;
  }

  #rna-formations .rna-formations-grid {
    grid-template-columns: 1fr;
  }

  #rna-formations .rna-formations-card__cta {
    align-self: stretch;
  }
}

@media (prefers-reduced-motion: reduce) {
  #rna-formations .rna-formations-card:hover {
    transform: none;
  }
}