/* kit-concept-pillar.css — carte pilier riche, accent latéral cyan.
   P6 (C1) : stagger à l'entrée + micro-interactions sur la formule. */

.kit-concept-pillar {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  padding: 1rem 1.1rem 1rem 1.4rem;
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 0.85rem;
  margin-block: 0.75rem;
  overflow: hidden;
  transition: border-color 200ms, transform 200ms, box-shadow 200ms;
}
.kit-concept-pillar:hover {
  border-color: rgba(34,211,238,0.35);
  box-shadow: 0 6px 24px -10px rgba(34,211,238,0.35);
}
.kit-concept-pillar::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--kit-accent, #22d3ee), rgba(34,211,238,0.25));
  border-radius: 0.85rem 0 0 0.85rem;
  transform: scaleY(0.7);
  transform-origin: top;
  transition: transform 420ms cubic-bezier(0.34, 1.56, 0.64, 1);
}
.kit-concept-pillar[data-pillar-shown="1"]::before { transform: scaleY(1); }

/* Stagger entrée : on initialise tout en bas + opacity 0,
   puis on relâche en cascade quand data-pillar-shown="1" est posé. */
.kit-concept-pillar {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 380ms ease-out, transform 380ms ease-out, border-color 200ms, box-shadow 200ms;
}
.kit-concept-pillar[data-pillar-shown="1"] {
  opacity: 1;
  transform: translateY(0);
}
/* Si JS pas chargé : fallback no-op (les piliers restent visibles) */
.kit-concept-pillar[data-pillar-noop="1"] {
  opacity: 1;
  transform: none;
}

.kit-pillar-head {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}
.kit-pillar-icon {
  font-size: 2rem;
  line-height: 1;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.4));
  transition: transform 300ms cubic-bezier(0.34, 1.56, 0.64, 1);
}
.kit-concept-pillar:hover .kit-pillar-icon { transform: scale(1.12) rotate(-4deg); }

.kit-pillar-titles { display: flex; flex-direction: column; gap: 0.1rem; }
.kit-pillar-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #f8fafc;
  margin: 0;
  line-height: 1.2;
}
.kit-pillar-tagline {
  font-size: 0.78rem;
  color: var(--kit-accent, #22d3ee);
  margin: 0;
  font-style: italic;
  opacity: 0.9;
}

.kit-pillar-body {
  font-size: 0.9rem;
  color: #d1d5db;
  line-height: 1.6;
}
.kit-pillar-body p { margin: 0 0 0.5rem; }
.kit-pillar-body p:last-child { margin-bottom: 0; }
.kit-pillar-body ul {
  margin: 0.4rem 0 0;
  padding-left: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

/* Encadré formule dans le body (micro-interaction P6 / C1) */
.kit-pillar-body .kit-eq,
.kit-pillar-body [data-pillar-formula] {
  margin: 0.6rem 0 0.4rem;
  padding: 0.5rem 0.4rem;
  border-radius: 0.6rem;
  background: rgba(34,211,238,0.04);
  border: 1px dashed rgba(34,211,238,0.20);
  transition: background 200ms, border-color 200ms, transform 200ms;
}
.kit-pillar-body .kit-eq:hover,
.kit-pillar-body [data-pillar-formula]:hover {
  background: rgba(34,211,238,0.10);
  border-color: rgba(34,211,238,0.45);
  transform: translateY(-1px);
}

.kit-pillar-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding-top: 0.6rem;
  border-top: 1px dashed rgba(255,255,255,0.08);
}
.kit-pillar-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.55rem;
  background: rgba(34,211,238,0.06);
  border: 1px solid rgba(34,211,238,0.18);
  border-radius: 999px;
  font-size: 0.75rem;
  color: #cbd5e1;
  transition: background 150ms, border-color 150ms, transform 150ms;
}
.kit-pillar-tag:hover {
  background: rgba(34,211,238,0.18);
  border-color: rgba(34,211,238,0.45);
  transform: translateY(-1px);
}

/* Respect reduced-motion : on coupe le stagger + les transforms */
@media (prefers-reduced-motion: reduce) {
  .kit-concept-pillar,
  .kit-concept-pillar::before,
  .kit-pillar-icon,
  .kit-pillar-body .kit-eq,
  .kit-pillar-tag {
    transition: none !important;
    animation: none !important;
  }
  .kit-concept-pillar { opacity: 1; transform: none; }
  .kit-concept-pillar::before { transform: scaleY(1); }
}